Untitled - Sambalpur University
Transcription
Untitled - Sambalpur University
NOBEL PRIZE 2014 Alfred Bernhard Nobel) (21 October 1833 – 10 December 1896) Organized by School of Chemistry Vol. XIII Edited by: Dr. Nabakrushna Behera School of Chemistry, S.U. (E-mail: nkbehera@suniv.ac.in) Sambalpur University Jyoti Vihar‒768 019, Odisha Dr. S. C. Jamir Governor, Odisha Raj Bhawan Bhubaneswar-751 008 January 15, 2015 MESSAGE I am glad to know that the School of Chemistry, Sambalpur University is organising the “Nobel Prize-2014” seminar on January 22, 2014. The prestigious Nobel Prize symbolizes World-wide recognition to the pioneering work done in different fields. 2014 is a year of pride for the country as an Indian Shri Kailash Satyarthi shared the Nobel Peace Prize. Having a seminar on the prize winning work of Nobel laureates is indeed a laudable endeavour. I am sure the talk by experts will be enlightening and inspiring for both teachers and students to aspire big in mind and action. I wish the publication all success. (S. C. Jamir) Prof. (Dr.) C. R. Tripathy Vice-Chancellor Sambalpur University Jyoti Vihar – 768 019 January 15, 2015 MESSAGE I am glad to know that the School of Chemistry, Sambalpur University, like previous years, is organizing this year a seminar on Nobel prize winning work on 22nd January, 2015 to disseminate knowledge on the excellent contributions made by the Nobel laureates in the fields of physics, chemistry, physiology or medicine, economics, literature and peace. The idea of organizing such a distinctive seminar is exemplary. I am sure this seminar will continue to generate a lot of keenness and awareness among the academic fraternity in days ahead. I congratulate the organizers for this impressive endeavour. I wish the seminar all success. (C. R. Tripathy) From Visionary… Prof. G. B. Behera Retd. Professor of Chemistry Hill Town, Bhawanipatna-766001, Odisha. MESSAGE I am happy to know that the School of Chemistry, Sambalpur University is organizing the NOBEL PRIZE SEMINAR on the 22nd of January, 2015. In fact it is a unique feature of Sambalpur University in the area of popularization of science. The students and the faculty should know the shift in the frontier of knowledge. The University should take credit for such innovative effort. Creativity is an art which if properly tended takes shape and opens many windows. All of us have a child in us, which needs to be pampered. The child in us becomes inquisitive and makes all out effort to give a shape to this inquisitiveness. It was a child who had the guts and innocence to verbally state the truth in The Emperor’s New Clothes . The scientists on the one hand are trying to understand the vastness of the universe and on the other hand are trying to look at a cell, which has opened many possibilities in many fields of human welfare. I congratulate the organizers for the consistence effort to organize the seminar every year and publish a book out of the deliberations. This should continue with greater zeal and with a greater vision in trying to invite some Nobel Laureates to this seminar in future with the support of the University. This shall activate the dormant dreams of the young generation and help them to create. With a Happy New Year to all. May the Almighty shower blessings on all for a better, prosperous, meaningful and purposeful life. (G. B. Behera) Dr. A. K. Behera Head, School of Chemistry Sambalpur University, 768 019 FOREWORD Nobel Prize is an appreciation by the global elites for the highest contribution of a person or institute to the society recognized in the year of award. Mostly it is an accretion of excellence with time amplifying more and more to reach to the excellence of global appreciation. The Nobel Prize Seminar (NPS), organized by the School of Chemistry every year is an effort to disseminate the knowledge on the contribution to the passionate academic community. The year 2014 means a lot as an Indian Shri Kailash Satyarthi shared the Nobel Peace Prize owing to his dedication towards betterment of the children. We have been fascinated towards the organization of the conference and have made an annual event of the School because of its unique kind at the National level and the benefit that it extends to the students as well as the teachers of the University. The School is publishing the proceedings of the seminar in the form of a booklet regularly. I must appreciate the endeavour of the authors in contributing their articles in time which helps us in publishing an edited volume on Nobel Prize every year by the School. These would have not been possible without the support of my colleagues and students who have generously extended all kind of helps in making this seminar and the publication of the proceedings of the seminar a grand success. Such helps from all spheres would certainly help us to perpetuate our venture in holding the seminar and publishing the proceedings. (A. K. Behera) From the Organizing Secretary… On behalf of the Organizing Committee of Nobel Prize Seminar 2014, I am honored and delighted to present the proceedings of the seminar on Nobel Prize winning work for the year 2014, organized by School of Chemistry, Sambalpur University on 22nd January 2015. The technical program of the seminar is structured with six different invited talks on various subjects/fields (viz. Chemistry, Physics, Physiology or Medicines, Economics, Literature, & Peace), honored by the Nobel Committee. This seminar is aimed at providing a platform that brings together students, teachers, intellectuals, innovators, scientific and social thinkers who offer the best thoughts to the Society. Participants will not only professionally gain practical and actionable insight with persuasive ideas but also personally they will enrich themselves by creative deliberations/speeches in the seminar. It is firmly believed that inquisitiveness leads to creativity and creativity leads to innovation, where innovation continues to be a guiding lamp for millions. In order to move with time, we must not only be well versed with the expanding knowledge, but we must use it, disseminate it and move ahead with positive frame of mind. Needless to mention, it is a strong-willed journey since 1995 which the School of Chemistry has been holding this inimitable seminar every year to propagate the best idea recognized by Nobel Committee, among the students, teachers and other intellectuals. The interest, keenness and moral support of the speakers (authors) are gratefully acknowledged as it paved the way to publish the proceedings in time. The proceedings contain a total of six articles based on the Nobel Prize winning work for the year 2014. Besides, some focused information has been included at the end of these articles. In fact, the proceedings which contain a bunch of information, shared thoughts and realizations of the Nobel Laureates will enthuse the readers and serve as a precious orientation and informative source. Hopefully, participants who are going to attend and involve themself in the seminar deliberations will be tremendously benefited. WISH YOU ALL A VERY LOVELY MOMENT… (N. K. Behera) School of Chemistry, S.U. Nobel Prize 2014 CONTENTS 1 2 3 Alfred Nobel’s Will Subject 1 Author 2-50 (i) Nobel Prize in Physiology or Medicine S. C. Panda 2 (ii) Nobel Prize in Physics S. Agrawal 14 (iii) Nobel Prize in Chemistry H. Chakraborty 21 (iv) Nobel Prize in Literature K. Misra 30 (v) Nobel Prize in Peace A. K. Padhi 37 (vi) Nobel Prize in Economics S. S. Rath 46 Fact file of Nobel Prize Awards : At a Glance 51-54 (i) The Young Nobel Laureates 51 (ii) The Old Nobel Laureates 52 (iii) Nobel Laureate Families 53 (iv) Powerful Equations at Nobel Corner 54 4 Together We Can 55 6 About Speakers 56 7 References and Supplementary Reading 59 School of Chemistry, S.U. Nobel Prize 2014 ALFRED NOBEL S WILL On November 27, 1895, Alfred Nobel, Swedish chemist and the inventor of Dynamite signed his third and last will at the Swedish-Norwegian Club in Paris. When it was opened and read after his death, the will caused a lot of controversy both in Sweden and internationally, as Nobel had left much of his wealth for the establishment of a prize. His family opposed the establishment of the Nobel Prize, and the prize awarders he named refused to do what he had requested in his will. It was five years before the first Nobel Prize could be awarded in 1901. Now this award has become highly distinguished award. Will reads as follows… I, the undersigned, Alfred Bernhard Nobel, do hereby, after mature deliberation, declare the following to be my last Will and Testament with respect to such property as may be left by me at the time of my death: The whole of my remaining realizable estate shall be dealt with in the following way: “The capital shall be invested by my executors in safe securities and shall constitute a fund, the interest on which shall be annually distributed in the form of prizes to those who, during the preceding year, shall have conferred the greatest benefit on mankind. The said interest shall be divided into five equal parts, which shall be apportioned as follows: one part to the person who shall have made the most important discovery or invention within the field of physics; one part to the person who shall have made the most important chemical discovery or improvement; one part to the person who shall have made the most important discovery within the domain of physiology or medicine; one part to the person who shall have produced in the field of literature the most outstanding work of an idealistic tendency; and one part to the person who shall have done the most or the best work for fraternity among nations, for the abolition or reduction of standing armies and for the holding and promotion of peace congresses. The prizes for physics and chemistry shall be awarded by the Swedish Academy of Sciences; that for physiological or medical works by the Caroline Institute in Stockholm; that for literature by the Academy in Stockholm; and that for champions of peace by a committee of five persons to be elected by the Norwegian Storting. It is my express wish that in awarding the prizes no consideration whatever shall be given to the nationality of the candidates, so that the most worthy shall receive the prize, whether he be a Scandinavian or not”. November 27, 1895 Alfred Bernhard Nobel That Mr. Alfred Bernhard Nobel, being of sound mind, has of his own free will declared the above to be his last Will and Testament, and that he has signed the same, we have, in his presence and the presence of each other, hereunto subscribed our names as witnesses: Sigurd Ehrenborg Former Lieutenant Paris: 84 Boulevard Haussmann R. W. Strehlenert Civil Engineer 4, Passage Caroline Thos Nordenfelt Constructor 8, Rue Auber, Paris Leonard Hwass Civil Engineer 4, Passage Caroline Note: The Prize in Economics is not one of the original Nobel Prizes created by the will of Alfred Nobel. 1 School of Chemistry, S.U. Nobel Prize 2014 NOBEL PRIZE IN PHYSIOLOGY OR MEDICINE WHERE YOU ARE AND HOW YOU MOVE AROUND: MYSTERY UNFOLDED John O'Keefe May-Britt Moser Edvard I. Moser In this write up, on which backdrop the Nobel laureates in Physiology or Medicine for 2014 were engaged in finding the puzzle of the abilities of spatial function and navigation by the brain, how they did their experiments were narrated in a lucid manner. Brief outline of theories on space and behavior, rat maze, Tolman s experiment, electrophysiology of rats, anatomy of Hippocampus are described so as to enable the readers to have a clear understanding of the groundbreaking discovery of inner GPS of the brain. Future implications in cognitive neuroscience as well as in Medicine are highlighted in brief. Introduction The Nobel Prize in Physiology or Medicine is shared by Dr. John O Keefe, Dr. May-Britt Moser and her husband Dr. Edvard I. Moser for their discoveries of cells that constitute a positioning system in the brain in field of physiology and spatial behavior. O Keefe was awarded half of the m Swedish krona around £ , prize while the other two winners received a quarter each. The field of cognitive neuroscience means the scientific study of the neural mechanisms underlying cognition and is a branch of neuroscience. Cognitive neuroscience is related to cognitive psychology and focuses on the neural substrates of mental processes and their behavioral manifestations. There is a thin line of difference as far as psychology, psychiatry and neuroscience are concerned. A remarkable grasp in subjects like experimental psychology, neurobiology, neurology, physics, and mathematics is a must for Cognitive neuroscientists. The brain is the most complex structure in the known universe, where every square millimeter of space is packed full of networks that enable us to think, feel and move. It is the brain that makes all of us including animals conscious about the surroundings. Perception, cognition, emotion, spatial function and navigation are some of the functions of the brain after which thinkers and scientists have been pondering for long. In terms of time 2 School of Chemistry, S.U. Nobel Prize 2014 we have past, present and future components everywhere. Present builds upon past experience and endeavors to make the future bright. This groundbreaking discovery was possible for contributions of research in cognitive neuroscience and ideas of great thinkers of the past. Advancement in study techniques such as staining and recording of electrical activities of brain also helped to conduct experiments on rats. To understand this fundamentals research of inner GPS for which these three scientists were recognized by the Nobel Committee this year we should have some knowledge about the ideas of philosophers and scientists about space, behavior, mental map, anatomy of hippocampus formation, EEG, rat maze besides the success stories of the Nobel laureates. Space and Behaviour John O Keefe in his book The (ippocampus as a Cognitive Map raises certain issues related to space. He says SPACE plays a role in all our behaviour. We live in it, move through it, explore it, and defend it. Is space simply a container, or receptacle, for the objects of the sensible world? Could these objects exist without space? Is space a feature of the physical universe, or is it a convenient figment of our minds? If the latter, how did it get there? Do we construct it from space less sensations or are we born with it? Of what use is it? It has motivated him to make an in depth analysis of the perceptions of philosophers like Leibnitz, Newton, Clarke, Berkeley, and Kant. O Keefe and Lynn Nadel identified two spatial conceptions: relative space and absolute space. Relative space coincides with personal space or egocentric space which centers on the self . Relative Space also includes space as conceived by Einstein. Absolute space is Newtonian which is singular and does not depend on the beholder. There is a single absolute space in the universe. During the 18th century the German philosopher Immanuel Kant (1724-1804) argued that some mental abilities exist independent of experience. He considered perception of place as one of these innate abilities through which the external world had to be organized and perceived. In other words, humans have an inborn sense of absolute Newtonian space. This Kantian theory actually provided 20 th century scientists the framework for empirical investigation into how the space that we perceive is constructed in the mind. Kant s theory about space influenced Keefe. 1 The work of the American psychologist Edward Tolman in 1948 was a key step towards this final understanding Amazing Maze for Rats Rats are excellent runners, climbers, crawlers, burrowers, and swimmers; they are highly adaptive. Whether its remote wilderness or bustling cities matter little to the rats to make their home with ease. This might explain why rats are the most commonly used animal in psychology research; psychologists have been running rats in mazes for over a hundred years. In his 1937 APA presidential address, Edward Chance Tolman 3 School of Chemistry, S.U. Nobel Prize 2014 made an interesting statement:"Everything important in psychology … can be investigated in essence through the continued experimental and theoretical analysis of the determinants of rat behavior at a choice-point in a maze." It still holds good. The idea for the first maze study was dawned upon the mind of Sanford and another Clark graduate student, Linus Kline. They had been studying rats and were especially interested in what they called the rat's "home-finding" ability. Kline had noticed runways made by large feral rats to their nests on their farm in Virginia." Once, Sanford noticed maze like appearances of the runways which were exposed during an excavation. This observation enabled Sanford using the Hampton Court Maze design to study "home-finding." Mazes reached their experimental heyday in the 1930s and 1940s, when Tolman could claim that rat behavior at a choice point was the key to psychological knowledge and not be laughed off the stage.2 The classical maze consists of a large platform with a series of vertical walls and a transparent ceiling. The rat starts in one location, runs through the maze, and finishes at a reward in another location. Fig. 1: Other types of mazes used in experiments are T maze, Multiple T maze, Y maze, Radial Arm maze and Morris water maze. 3 Anatomy of Hippocampus The hippocampus formation is situated on the inner side of the brain. It includes the parahippocampal gyrus, subiculum, hippocampus, dentate gyrus, and associated white matter, notably the fimbria, whose fibres continue into the fornix. Hippocampus is a C-shaped structure deep in the middle of the brain. The hippocampus proper and the dentate gyrus form two interlocking Cs. The cortex adjacent to the hippocampus is known as the entorhinal area; it is present along the whole length of the parahippocampal gyrus. The subiculum is a transitional zone between the entorhinal and hippocampal cortices. The hippocampus has direct connections to the entorhinal cortex (via the subiculum) and the amygdala. The hippocampus coordinates information from a variety of sources. A major flow of information through the hippocampus is a one-way circuit. Some inputs to the hippocampus (perforant pathway) from the entorhinal cortex pass through to the dentate gyrus. CA means cornu ammonis- an area of hippocampus. From the dentate gyrus connections are made 4 School of Chemistry, S.U. Nobel Prize 2014 to CA3 of the hippocampus proper via mossy fibers and to CA1 (dorsal partition of hippocampus) via Schaffer collaterals. From these two CA fields information then passes through the subiculum entering the alveus, fimbria, and fornix and then to other areas of the brain.4 Fig. 2: Anatomy of Hippocampus formatiom.4 Cognitive Map It has been told earlier how the idea of the cognitive maps introduced by Tolman has motivated Keefe. A brief account of Tolman s findings is given here to correlate its importance to the present path breaking discovery of mental mapping of the brain. A cognitive map is a mental process to store and retrieve spatial information, such as the relative locations of objects. In other words, the firing of these neurons can tell the animal, You are here. They are thought to underlie spatial navigation, among other behaviors. Tolman reported that as early as 1929 Lashley had observed something quite interesting about rats. A rat that he had trained in a maze escaped near the starting point and ran across the top of the maze directly to the goal-box where the food was located. This behavior suggested that the rat had a map of the territory, not just a trained path to the goal. He wanted to know whether rats came to understand the spatial layout of the environment by behavioural mechanisms alone or whether there was a cognitive process in the brain that governed this navigational ability. Tolman and Honzik conducted experiments on rats to answer this question. They took three groups of food-deprived rats in the start box of a 14-unit T maze From the first day food was made available at the end of the maze for the first group. A second group of rats never found food at the end of the maze for the entire study. In case of third group of rats food was placed at the end of the maze from 11 th day till the 22nd day of the study. The third group wandered for 10 days and got no food and during this process their speed increased and error became less as the days passed since the 11th day. This suggested to Tolman that rats spontaneously formed a mental map of the maze that allowed them to identify locations and navigate their way through even without reinforcement. This problem space was termed as cognitive map by 5 School of Chemistry, S.U. Nobel Prize 2014 psychologist E. C. Tolman. The cognitive map is likely to show where they go and the routes used. Clark Hull disagreed with Tolman, and argued that the behavioral data could be explained by stimulus-response chains. This dispute continued for decades. During the s and s, (ull s behaviorist interpretation was dominant. The advent of cognitive psychology in the late 1960s championed Tolman and his maps.5 With the advent of techniques to record from cells in the brain of animals that were freely moving in the environment, using chronically implanted micro wires hundreds of studies of animal navigation and its physiological basis have been performed. One result of these studies has been the conclusion that the hippocampus is a crucial part of the navigation systems of many animals. The hippocampus is equally crucial for path-integration-based cognitive map learning in rats. Therefore the hippocampus seems to mediate a transition from relatively simple spatial mechanisms such as sun compass orientation and path integration to more complex map-based navigational mechanisms. Earlier research had suggested that damage to a rat's hippocampus causes it to become confused when attempting spatial tasks. O Keefe and Nadel felt that humans and animals use absolute space and that it is generated in the hippocampus. Now the task before O'Keefe was how different hippocampus regions were related to rat s movement. Second task was to find out whether there was any neural system which enables the animal to make a cognitive or spatial map. Physiology: EEG of Rats EEG means electro encephalogram. It is the recording of electrical activity of the brain. EEG is relatively easy to record in rats. A large electrode is put into a brain region; signal is amplified. Sum of electric currents produced by large numbers of neighboring neurons is recorded. If the neurons are synchronized, slow, synchronous extra-cellular currents should be observed. When EEG recordings are made on the rat hippocampus, roughly half the time a steady 6-10 cycle-per-second wave is recorded and termed the theta rhythm Fig. . Theta in the rat occurs whenever the rat moves and when the animal appears to be paying attention to distant objects. By , the time of book s publication, rat theta had been carefully studied for over 20 years, both in terms of the underlying physiology and its behavioral significance. 6 School of Chemistry, S.U. Nobel Prize 2014 Fig. 3: Theta Rhythm6 Mapping the External World: The Place Cells As we are aware now that Tolman s theory of formation of a cognitive map that enabled animals to navigate and find the optimal path through the environment were not dependent on chains of sensory-motor response relationships as proposed by the behaviourists as a prerequisite for achieving complex behaviours. But his theory did not address where in the brain these functions may be localized and how the brain computes such complex behaviours. John O Keefe, who is now , went ahead to answer this puzzle. (is background in physiological psychology, a fruitful tenure with Ronald Melzack at McGill University before he moved to the laboratory of the pain researcher Patrick Wall at University College in London, where he started his work on behaving animals in the late 1960s helped him to achieve this wonderful feat in the field of spatial behavior. Besides these, three more eminent neuroscientists have a great role in motivating Keefe to unravel the mystery of mind mapping by brain. They are E. C. Tolman, D. O. Hebb and A. Black. That s the reason why he and Lynn dedicated their book titled The (ippocampus as a cognitive map to these three.1 According to the authors, Tolman first dreamed of cognitive maps in rats and men; Hebb taught them to look for those maps in the brain and Black insisted that they pursue their route with rigour. This dedication can be considered a manifesto of his inspiration and of his resilience. Rats with hippocampus damage were found to be hyperactive and poor at spatial tasks such as mazes. They were not able to alter response on successive trials which might be due to the loss of neural system responsible for providing the animal with a cognitive map of its environment. Prof. Keefe focused on the behavior of hippocampus units of rat. In University College of London, he discovered the place cells, when recording from neurons in the dorsal partition of hippocampus, called CA1, together with 7 School of Chemistry, S.U. Nobel Prize 2014 Dostrovsky, in rats moving freely in a bounded area (O'Keefe and Dostrovsky, 1971). He recorded from pyramidal neurons, the principal neurons of the hippocampus, in rats as they moved freely around a big circular arena. The electrodes are connected to the amplifiers with a long, flexible tether. An individual neuron is silent almost all the time, except when the rat walks into a particular region of space, when the neuron fires a big burst of spikes. This region is called a place field, and the place fields of all the neurons cover the entire environment. Crucially, the cells weren t just registering the location, but also appeared to be making circuits constituting an inner map of the place. Certain neurons fired when the rat was at a certain place and certain others fired when it was at another place. This collection of neurons was in effect a two-dimensional representative map of the room. If the rat was put in another part of the room, another set of nerve cells got activated. When the animal was returned to the original location, the original cells were reactivated. The upshot: The memory of a place was stored as a specific combination of these nerve or place cells. By systematically changing the environment and testing different theoretical possibilities, O Keefe showed that the firing not merely registered the visual input in the neurons but was effectively generating the place field , Fig. 4) a positional map, of the environment in the brain. Fig. 4: Place cells in the hippocampus of Rat (Pink dot).7 To the right of the figure place cells are highlighted in the Hippocampus of the schematic of the rat. The grey square depicts the open field the rat is moving over (place field). Different place cells in the hippocampus fire at different places in the arena. O Keefe concluded together with Nadel that place cells provide the brain with a spatial reference map system, or a sense of place (O'Keefe and Nadel, 1978). Ultimately, Through O Keefe s discoveries, the cognitive map theory had found its representation in the brain.7 )n subsequent experiments, O Keefe showed that the place cells might have memory functions O Keefe and Conway, ; O Keefe and Speakman, . The simultaneous rearrangement in many place cells in different environments was called remapping and O Keefe showed that remapping is learned, and once it is established, it 8 School of Chemistry, S.U. Nobel Prize 2014 can be stable over time (Lever et al., 2002). The place cells may therefore provide a cellular substrate for memory processes, where a memory of an environment can be stored as specific combinations of place cells. At first, the proposition that the hippocampus was involved in spatial navigation was met with some skepticism. 8 Through a set of carefully controlled experiments Dr. O Keefe provided evidence that cells worked not by triggering the sense of smell or sound but by giving rise to a map of the room and the proposal that hippocampus contains an inner map that can store information about the environment, were seminal. Journey into Entorhinal Cortex A proverb comes to the mind when we think of this year s Nobel Prize awarded to Moser couple. It says It takes a village to raise a child. NTNU s Kavli )nstitute for Systems Neuroscience/Centre for Neural Computation (KI/CNC s nurture has helped Edward and May to make about groundbreaking discoveries in neuroscience. During her banquet speech in the Karolinska Institutet hall in Stockholm on the big screen, Nobel Laureate May-Britt Moser showed how a mouse tries to hop up on its platform and fails in its first attempt to grab the biscuit; seats for a while, makes a plan and ultimately comes out with flying colors i.e., it manages to get the prize. She showed the story of the struggle of the mouse and explained that in the laboratory scientist like them too try time and again like the determined mouse and this is how they could reach at a path breaking discovery at the end. In 1983, both of them came to know each other, romance was translated into marriage and both of them developed keen interest for studying neuroscience and brain. They persuaded Per Andersen, the renowned electro physiologist to allow them to conduct undergraduate project under his guidance. They were told to work on the hippocampus of rat and its behavior. The two young scientists embraced the challenge, and soon discovered something profound. It had been assumed that the hippocampus was homogeneous. The couple on the contrary, showed that one side of it was much more important for spatial memory than the other side. Through Per, they came in touch with Richard Morris at the University of Edinburgh and John O'Keefe at University College London. They guided Moser s into the mysteries at the intersection of behavior and neuroscience. During Ph.D studies, they visited Richard several times to participate in work on the functions of the hippocampus and the role of hippocampus long-term potentiation (LTP) in memory formation. Undeterred by family burden, they worked hard and along with their Ph.Ds, they accepted side-by-side post docs in O Keefe s lab in London in 1996 and spent a few rewarding months wherein they learnt place cell recording in the hippocampus. Moser couple was excited and wanted to go beyond place cells. But in the same year i.e., 1996, just a few months into their post docs, they received a surprise offer of two associate professorships at the Norwegian University of 9 School of Chemistry, S.U. Nobel Prize 2014 Science and Technology in Trondheim. They flew back home along with their two young children. Earlier years in Trondheim were tough but enjoyable. There were no animal housing facilities, no workshops and no technicians. Their research started in a small basement with a small lab of their own and animal facility in Trondheim. They cleaned rat cages, changed bedding, sliced brains and repaired cables. Earlier difficulties and paucity of resources was a blessing in disguise because they could shape their lab exactly as they wanted to. Experience gained from Keefe s Laboratory enabled May, Edvard and their team to record the activity of individual cells in the hippocampus, with electrodes implanted in the brains of rats as they roamed a square black box. Determination, perseverance and patience always bear fruit. A few painstaking years made them win big grants from the European Commission and the Research Council of Norway to coordinate a consortium of seven groups that collectively aimed to perform one of the first integrated neural network studies of hippocampus memory. 9 One of the aims was to determine how the position code of the hippocampus is computed. It had been known since 1971 that the hippocampus has "place cells," cells that fire if and only if an animal is in a certain place. But it was unclear whether those place signals originated in the hippocampus itself or came from the outside. To address this question, they adapted the standard experimental technique for studying place cells. However, they made intrahippocampal lesions that disconnected the output stage of the circuit – CA1 – from the earlier stages and then tested whether the place cells continued to fire normally. Interestingly, this did not abolish place coding in CA1. They were sure enough that spatial signal might originate from the surrounding cortex. Their focus was now on the entorhinal cortex, a cortical region with major direct connections to the CA1 area of the hippocampus.8-10 Puzzle of Hexagonal Pattern At this juncture, the team of Moser couple and their devoted students was complete after the arrival of a neuroanatomist named Menno Witter who worked out much of the connectivity between the entorhinal cortex and hippocampus. The team started the experiments, recording from single neurons in the entorhinal cortex. They found something unexpected. The researchers saw entorhinal neurons fired at a particular spot like Keefe s place cells. But they went on to fire several other spots too and overlapping blobs appeared on the screen. They could see that the blobs were creating some sort of pattern a regular pattern, say a kind of a hexagonal grid – much like the arrangement of marbles in a Chinese checker board or that of a beehive. But they couldn't work out what it was. 10 School of Chemistry, S.U. Nobel Prize 2014 Fig. 7: Grid cells. The grid cells are located in the entorhinal cortex depicted in blue (Right side). These locations are arranged in a hexagonal pattern in the grey square on the left. 7 Moment of Ecstasy: Mystery of Navigation Unraveled Edvard and May pondered a lot for few months and then realized that bigger box has to be used in the experiment to comprehend the pattern. The shapes were abstractly created in the rat's brain and imposed on its environment, such that a single neuron fired whenever it crossed one of the points of the hexagon (Fig. 7). At the same time, grid cells that represent different positions relative to the box's border are dotted randomly through the structure. The cells were organized topographically in the sense that the size of and distance between grid fields increased from dorsal to ventral. Moreover, cells maintained firing relationships from one environment to the next. From this finding Mosers were convinced that they were on track of a universal type of spatial map – a map whose activity pattern in many ways disregarded the fine details of the environment. With their strict regularity, the cells had the metrics of the spatial map that had not been found in the hippocampus. The discovery was exciting for more than its pleasing pattern. This representation of space in brain-language was one of the long-sought codes by which the brain represents the world around us. It was a long-drawn-out eureka moment, recalls Edvard. The team published the discovery in Nature in 2005. Assuming a similar arrangement exists in humans, the idea is that, together, these cells are unconsciously keeping track of where we are as we wander between rooms or stroll down a street. Exploring further, the Mosers showed that there was a reciprocal influence between the grid cells and the place cells. Together with other cells of the cortex that recognize the direction of the head (Head direction cells) and the edges of the place field (border cells), the grid cells form circuits with the place cells in the hippocampus. That is, these cells in the cortex may be even contributing to the firing pattern in the hippocampus through a kind of feedback mechanism. This circuitry thus forms a comprehensive GPS-like inner positioning system in the brain.9,10 11 School of Chemistry, S.U. Nobel Prize 2014 Grid Cells and Beyond There is no grid pattern in the outside world – this is made by the brain alone. Because the pattern is so reliable and so regular, it may put us on the track of understanding the fundamental computations of the cortex. There is still a lot to find out. Grid cells have helped us better understanding the neural representation of space, but they also provide a window into some of the innermost workings of the brain. Solving one question in Science gives to ten more questions. Scientists now are aware about place cells and grid cells and their role in spatial function and navigation. They do not yet know how the grid is generated by the neural networks in the entorhinal cortex, or how the overall map created by grid cells, place cells and other navigation cells is integrated to help animals to get from one place to the next. O Keefe and co-workers have demonstrated in a mouse model with Alzheimer s disease that the degradation of place cells correlated with the deterioration of spatial memory in the animal. The Mosers hypothesize that the cells in the entorhinal cortex may have special properties that allow the disease to develop there early– a puzzle that they hope scientists elsewhere can start solving. The amnesia of H.M. after surgery by Dr. Scoville in 1953 and subsequent studies with H.M. has highlighted the importance of Hippocampus as a seat of declarative memory. Recent investigations with brain imaging techniques, as well as studies of patients undergoing neurosurgery, have provided evidence that place and grid cells exist also in humans. In patients with Alzheimer's disease, the hippocampus and entorhinal cortex are frequently affected at an early stage, and these individuals often lose their way and cannot recognize the environment. Hippocampal place cells have been used to study the neural basis of cognitive changes in disease, including Alzheimer s, epilepsy, and schizophrenia. Knowledge about the brain's positioning system may, therefore, help us understand the mechanism underpinning the devastating spatial memory loss that affects people with this disease. Conclusion This Nobel Prize-winning work has unraveled the brain s positioning and navigation system and marks a paradigm shift in the understanding of the neurological basis for higher cognitive functions such as memory, thinking and planning. Though present knowledge on role of hippocampus and entorhinal cortex in memory of brain is yet to benefit clinical practice or therapy it will help in understanding the cellular basis of these diseases and in near future this knowledge will enable the clinicians to treat the ailing Mankind with memory disorders.7,11,12 12 School of Chemistry, S.U. Nobel Prize 2014 References Keefe O. J.; Nadel. L. The (ippocampus as a cognitive map Clarendon Press, Oxford, . Goodwin, J. C. A-mazing research: A look at the origins and continued use of the maze in psychological research Time Capsule, Monitor on Psychology, February 2012, Vol. 43, No. 2, Print version: page 20, URL:http://www.apa.org/monitor/2012/02/research.aspx, Date of access [ 29/12/2014]. 3. Rat Maze: http://www.ratbehavior.org/RatsAndMazes.htm,Date of access [ 29/12/2014]. 4. Neves, G.; Cooke, S. F.; Bliss, T. V. P. Nature Rev. Neurosc. 9, 2008, 65-75. (URL: http:// www.nature.com/nrn/journal/v9/n1/full/nrn2303.html, Date of access [20/12/2014]). 5. Jensen, R. Behaviorism, Latent Learning, and Cognitive Maps: Needed Revisions in Introductory Psychology Textbooks The Behavior Analyst 2006, 29, 187–209 No. 2 (Fall). 6. Marozzi, E; Jeffery, K. J. Curr. Biol., 22 (22), 2012, ppR939–R942, (URL:https://www.ucl.ac.uk/ jefferylab/publications/2012_Marozzi_and_Jeffery_Curr_Biol.pdf Date of access [03/01/2015]). 7. O'Keefe, J.; Dostrovsky, J. (1971). The hippocampus as a spatial map. Preliminary evidence from unit activity in the freely-moving rat Brain Research, 34 (1), 171-175 DOI: 10.1016/0006-8993(71)90358-1. 8. Kiehn, O.; Forssberg, H. Scientific Background: The Brain s Navigational Place and Grid Cell System URL:http://www.nobelprize.org/nobel_prizes/medicine/laureates/2014/advanced-medicineprize 2014.p , Date of access[15/10/2014]. 9. Discovering grid cells, Kavli Institute for Systems Neuroscience for Neural Comutation, Site hosted by NTTU, URL: http://www.ntnu.edu/kavli/discovering-grid-cells. Date of access [24/12/2014]. 10. Bazilchuk N. Nobel lectures touch on central discoveries and tantalizing findings Gemini Science News for NTNU and SINTEF, Published on 07/12/2014, URL: http://gemini.no/en/2014/12/nobel-lecturestouch-on-central-discoveries-and-tantalizing-findings/, Date of access [24/12/2014]. 11. Ramachandran R. )nner GPS Science and Technology, Frontline, Print edition: November 14, 2014. 12. Poucet, B.; Sargolini, F. A Trace of Your Place Neuroscience, Science Vol , April , Published by AAAS, URL: www.sciencemag.org, Date of access [13/12/2014]. 1. 2. S. C. Panda Community Medicine V.S.S. Medical College Burla-768 017 13 School of Chemistry, S.U. Nobel Prize 2014 NOBEL PRIZE IN PHYSICS THE BLUE LIGHT–EMITTING DIODE (LED) Isamu Akasaki Hiroshi Amano Shuji Nakamura Introduction Isamu Akasaki, Hiroshi Amano and Shuji Nakamura have jointly been awarded the Nobel Prize in Physics in 2014 for inventing a new energy efficient and environment-friendly light source – the blue light-emitting diode (LED). Red and Green LEDs have been invented for almost half a century, but Blue light was needed to truly revolutionize lighting technology. As we know, only the triad of red, green and blue light can produce the white light that light up the world for us. Blue light remained a challenge for almost three decades, in spite of high stakes and immense attempts undertaken in the research community as well as in industry. With the invention of blue light, gates have opened for a fundamental transformation of illumination technology. As someone rightly stated, Incandescent light bulbs had lit the 20th century; the 21st century will be lit by LED lamps. A light-emitting diode consists of a number of layered semiconductor materials that emit light when they're activated. In the LED, applied electricity is directly converted into light resulting in efficiency gains as compared to other light sources. In other sources, most of the electricity applied is converted to heat and only a small amount into light. For example, in incandescent bulbs, and in halogen lamps, electric current is used to heat a wire filament, making it glow. Similarly, in fluorescent lamps a gas discharge is produced creating both heat and light. A chronological development of use of lighting technology is displayed in Fig. 1. 14 School of Chemistry, S.U. Nobel Prize 2014 Fig. 1. Chronological development of use of lighting technology. Different chemicals used for fabrication give different LEDs and their colors. The first LEDs came in the 1950s and 1960s. The early inventions included laser-emitting devices that worked only when submersed in liquid nitrogen. But, then scientists developed LEDs that emitted everything from infrared light to green light. However, they couldn't quite get to blue because, that required chemicals including carefully produced crystals, which they weren't yet able to make in the laboratory. The earlier red and green LEDs used gallium phosphide, which was easier to produce. However, Akasaki and Amano, worked together on fabricating high-quality gallium nitride, a chemical that appears in many of the layers in a blue LED. They discovered how to add chemicals to gallium nitride semiconductors in such a way that it would emit light efficiently. The duo built structures with layers of gallium nitride alloys. Technology A light-emitting diode (LED) is a two-lead semiconductor device. It is a p-n junction diode, which emits light when activated. It consists of a chip of semiconducting material doped with impurities to create a p-n junction. As in other semiconductor diodes, current flows easily from the p-side (anode) to the n-side (cathode), but not in the reverse direction. Charge carriers, i.e. electrons and holes–flow into the junction from electrodes with different voltages. When an electron meets a hole, recombination occurs and it falls into a lower energy level and releases energy in the form of a photon. This effect is called electroluminescence, and the color of the light (corresponding to the energy of the photon) is determined by the band gap energy of the semiconductor. The wavelength of the light emitted, and thus its color, depends on the band gap energy of the materials forming the p-n junction. In silicon or germanium diodes, the electrons and holes usually recombine by a non-radiative transition, which produces no optical emission, because these are indirect band gap materials. The materials used for the LED 15 School of Chemistry, S.U. Nobel Prize 2014 have a direct band gap with energies corresponding to near-infrared, visible, or nearultraviolet light. The earlier LEDs emitted low-intensity infrared light. Infrared LEDs are still frequently used as transmitting elements in remote-control circuits, such as those in remote controls for a wide variety of consumer electronics. The first visible-light LEDs were also of low intensity, and limited to red. However, modern LEDs are available across the visible, ultraviolet, and infrared wavelengths, with very high brightness. Recent developments in LEDs permit them to be used in environmental and task lighting. LEDs have many advantages over incandescent light sources, including lower energy consumption, longer lifetime, improved physical robustness, smaller size, and faster switching. Light-emitting diodes are now used in applications as diverse as aviation lighting, automotive headlamps, advertising, general lighting, traffic signals, and camera flashes. However, LEDs powerful enough for room lighting is still relatively expensive, and require more precise current and heat management than compact fluorescent lamp sources of comparable output. The development of LEDs began with infrared and red devices made with gallium arsenide. But, advancements in materials science have enabled making devices with even shorter wavelengths, emitting light in a variety of colors. Usually, LEDs are fabricated on an n-type substrate, with an electrode attached to the p-type layer deposited on its surface. P-type substrates, while less common, occur as well. Many commercial LEDs, especially GaN/InGaN, also use sapphire substrate. Most materials used for LED production have very high refractive indices. This means that much light will be reflected back into the material at the material/air surface interface. Thus, light extraction in LEDs is an important aspect of LED production, subject to much research and development. The working block diagram of a LED and the associated band diagram are shown in Fig. 2 below. The variation of current with voltage of a diode is shown in Fig. 3. 16 School of Chemistry, S.U. Nobel Prize 2014 Fig. 2: Working of a LED and the band diagram. Fig. 3: I-V diagram of a diode. Commercial Development The first commercial LEDs were normally used as replacements for incandescent and neon indicator lamps, and in seven-segment displays. It was first used in expensive equipments such as laboratory and electronics test equipment, then afterwards in such appliances as TVs, radios, telephones, calculators, as well as watches. Until 1968, visible and infrared LEDs were extremely costly, and so had little practical use. The Monsanto Company was the first organization to mass-produce visible LEDs, using gallium arsenide phosphide (GaAsP) in 1968 to produce red LEDs suitable for indicators. Hewlett Packard (HP) introduced LEDs in 1968, initially using GaAsP supplied by Monsanto. These red LEDs were bright enough only for use as indicators, as 17 School of Chemistry, S.U. Nobel Prize 2014 the light output was not enough to illuminate an area. Readouts in calculators were so small that plastic lenses were built over each digit to make them legible. Later, other colors became available and appeared in appliances and equipments. In the 1970s commercially successful LED devices at lesser price were produced by Fairchild Optoelectronics. These devices employed compound semiconductor chips fabricated with the planar process. The combination of planar processing for chip fabrication and innovative packaging methods enabled to achieve the much needed cost reductions. These methods continue to be used by LED producers. As LED materials technology grew more advanced, light output rose, while maintaining efficiency and reliability at acceptable levels. The invention and development of the high-power white LED showed the way to use for illumination, and is slowly replacing incandescent and fluorescent lighting. The first high-brightness blue LED was demonstrated by Shuji Nakamura in 1994 and was based on InGaN. Its development built on critical developments in GaN nucleation on sapphire substrates and the demonstration of p-type doping of GaN, developed by Isamu Akasaki and Hiroshi Amano in Nagoya. In 1995, Alberto Barbieri at the Cardiff University Laboratory (GB) investigated the efficiency and reliability of high-brightness LEDs and demonstrated a "transparent contact" LED using indium tin oxide (ITO) on (AlGaInP/GaAs). The existence of blue LEDs and highefficiency LEDs quickly led to the development of the first white LED, which employed a Y3Al5O12:Ce, or "YAG", phosphor coating to mix down-converted yellow light with blue to produce light that appears white. The development of LED technology has caused their efficiency and light output to rise exponentially, with a doubling occurring approximately every 36 months since the 1960s, in a way similar to Moore's law. This trend is generally attributed to the parallel development of other semiconductor technologies and advances in optics and material science, and has been called Haitz's law after Dr. Roland Haitz. In 2001 and 2002, processes for growing gallium nitride (GaN) LEDs on silicon were successfully demonstrated. It has been speculated that the use of six-inch silicon wafers instead of two-inch sapphire wafers and epitaxy manufacturing processes could reduce production costs by up to 90%. Future Technology A new style of wafers composed of gallium-nitride-on-silicon (GaN-on-Si) is being used to produce white LEDs. This avoids the typical costly sapphire substrates and it is predicted that by 2020, 40% of all GaN LEDs will be made with GaN-on-Si. Manufacturing large sapphire material is difficult, while large silicon material is cheaper and more abundant. LED companies shifting from using sapphire to silicon should be a minimal investment. New technology and material is also being developed to further build efficient lighting systems. 18 School of Chemistry, S.U. Nobel Prize 2014 Organic Light-Emitting Diodes (OLEDs) In an organic light-emitting diode (OLED), the electroluminescent material comprising the emissive layer of the diode is an organic compound. The potential advantages of OLEDs include thin, low-cost displays with a low driving voltage, wide viewing angle, and high contrast and color gamut. Polymer LEDs have the added benefit of printable and flexible displays. OLEDs have been used to make visual displays for portable electronic devices such as cell phones, digital cameras, and MP3 players while possible future uses include lighting and televisions. Quantum Dot LEDs Quantum Dots (QD) are semiconductor nano-crystals that possess unique optical properties. Their emission color can be tuned from the visible throughout the infrared spectrum. This allows quantum dot LEDs to create almost any color on the CIE diagram. This provides more color options and better color rendering than white LEDs since the emission spectra is much narrower, a characteristic of quantum confined states. Quantum dots are also being considered for use in white light-emitting diodes in liquid crystal display (LCD) televisions. Such QDs can be used to emit visible or near infrared light of any wavelength being excited by light with a shorter wavelength. The structure of QD-LEDs used for the electrical-excitation scheme is similar to basic design of OLED. A layer of quantum dots is sandwiched between layers of electron-transporting and hole-transporting materials. An applied electric field causes electrons and holes to move into the quantum dot layer and recombine forming an exciton that excites a QD. This scheme is commonly studied for quantum dot display. The tunability of emission wavelengths and narrow bandwidth is also beneficial as excitation sources for fluorescence imaging. Fluorescence near-field scanning optical microscopy (NSOM) utilizing an integrated QD-LED has been demonstrated for potential use. Conclusion LEDs have shown the way for new generation text, video displays, and sensors to be developed, while their high switching rates are also useful in advanced communications technology. In the future, engineers and scientists may make white LEDs by combining red, green, and blue ones, which would make a light with tunable colors. LEDs last up to 100,000 hours, compared to 10,000 hours for fluorescent lights and 1,000 hours for incandescent bulbs. Use of LEDs in more houses and buildings across the world could significantly reduce the world's electricity and materials consumption for lighting. 19 School of Chemistry, S.U. Nobel Prize 2014 References 1. 2. 3. 4. 5. 6. 7. 8. The life and times of the LED–a 100-year history , The Optoelectronics Research Centre, University of Southampton. April 2007. Retrieved September 4, 2012. Nakamura, S.; Mukai, T.; Senoh, M. Appl. Phys. Lett. 64 (13), 1994, 1687. Mueller, G. (2000), Electroluminescence I, Academic Press, ISBN 0-12-752173-9, pp 67, "escape cone of light" from semiconductor, illustrations of light cones on pp 69. http://en.wikipedia.org/wiki/Light-emitting_diode. A Roadmap to Efficient Green-Blue-Ultraviolet Light-Emitting Diodes, U.S. Naval Research Laboratory, 19 February 2014, Donna McKinney. Bardsley, J. N. IEEE J. Select. Top. Quant. Electron. 10, 2004, 3-4. Kamtekar, K. T.; Monkman, A. P.; Bryce, M. R. Adv. Mater. 22 (5), 2010, 572. Additional information on this year s Prizes, including a scientific background article in English, may be found at the website of the Royal Swedish Academy of Sciences, http://kva.se, and at http://nobelprize.org. S. Agrawal Dept. of Electronics & Tele-Comm. V.S.S.U.T., Burla-768 018 20 School of Chemistry, S.U. Nobel Prize 2014 NOBEL PRIZE IN CHEMISTRY DEVELOPMENT OF SUPER-RESOLVED FLUORESCENCE MICROSCOPY SEEING IS BELIEVING: RESOLUTION MATTERS Eric Betzig Stefan W. Hell William E. Moerner Discovery of microscope has revolutionized physical, chemical and biological sciences. Microscope is an instrument that is used to see objects that are invisible to naked eyes. Though it is difficult to identify the original inventor of microscope, evidence suggests that the first compound microscope was discovered in the Netherlands in the late 1500s. Giovanni Faber coined the name microscope for Galileo Galilei's compound microscope in 16251 (Galileo had called it the "occhiolino" or "little eye"). The journey that began in late sixteenth century still strives to achieve better spatial and temporal resolution. Temporal resolution has ramped up significantly with the development of sophisticated detector systems that allow studying biological processes in real time. Now days, a microscope has the capability to capture 1200 frames per second using an electron multiplying charge coupled device (EMCCD) camera. But challenge persists in achieving spatial resolution due to a basic tenet of physics called diffraction limit . Resolution of optical microscope has been increased manifold by the development of fluorescence microscope. A fluorescence microscope is an optical microscope that uses fluorescence (in addition to reflection) to generate an image. As detector has the ability to choose only fluorescence, it automatically enhances the resolution by not recording non fluorescent objects in the region of interest. Any microscope that generates images by recording fluorescence (from a fluorophore tagged to the object of interest), be it a simple epifluorescence microscope or a more complicated confocal setup, could be referred to as a fluorescence microscope. Confocal microscopy offers several advantages over conventional wide field optical microscopy, including the ability to control depth of field, elimination or reduction of background information from the focal plane, and the capability to collect serial optical 21 School of Chemistry, S.U. Nobel Prize 2014 sections from thick specimens. The basic key to the confocal approach is the use of spatial filtering techniques to eliminate out-of-focus light in specimens whose thickness exceeds the immediate plane of focus. There has been a tremendous explosion in the popularity of confocal microscopy in recent years, due in part to the relative ease with which extremely high-quality images can be obtained from specimens prepared for conventional fluorescence microscopy, and the growing number of applications in cell biology that rely on imaging both fixed and living cells and tissues. In fact, confocal technology is proving to be one of the most important advances ever achieved in optical microscopy. In spite of its high handedness in resolution and ease to use, the images captured using a confocal microscope still cannot breach the diffraction limit, so the resolution is still not less than 200 nm.2 Diffraction Limit The axial resolution of any optical imaging system (microscope, telescope or camera) can be limited by factors such as flaws in the lenses or misalignment. However, the fundamental maximum to the resolution of any optical system arises due to diffraction. An optical instrument's ability to produce images with an axial resolution as good as the instrument's theoretical limit is said to be diffraction limited.3 This limit is called Abbe diffraction limit, named after Ernst Abbe who found in 1870 that light with wavelength λ, travelling in a medium with refractive index n and converging to a spot with angle, Ɵ, will make a spot with radius (d)4, � �ℎ , = 2� �� The denominator � �� is called the numerical aperture (NA) and can reach about 1.4 - 1.6 in modern optics, hence the Abbe diffraction limit is d = λ/2.8. For a green light (wavelength ~ 500 nm), the diffraction limited spot size will be at least 180 nm, leads to highest axial resolution of an optical instrument of 180 nm for green exciting light. This resolution is good enough to see different organelles in cells but it hardly provides any local information in those organelles. Breaking the Diffraction Limit: Nobel Prize in Chemistry 2014 Recently, microscopes have been reported that provide 3- to 7-fold improved axial resolution in live cells. Moreover, a family of concepts has emerged that overcomes the diffraction barrier altogether. To date, there are two far-field principles that lead to fluorescence-based microscopy with a resolution far beyond Abbe s diffraction limit. The first is here referred to as super-resolved ensemble fluorophore microscopy and the second as super-resolved single fluorophore microscopy . The first principle was originally conceived as and implemented by stimulated emission depletion (STED) of fluorescence from all molecules in a sample except those in a small region of the studied object and has so far displayed a resolution down to 28 nm. 5 The discovery of the second variant may be described as three distinct steps. The first 22 School of Chemistry, S.U. Nobel Prize 2014 relates to the discovery of single fluorophore spectroscopy in dense media, the second to the theoretical description of the principle and the third to its experimental implementation. The Nobel Prize in Chemistry 2014 was awarded jointly to Eric Betzig of Jenelia Research Campus, Howard Hughes Medical Institute, VA, USA, Stefan W. Hell of Max Planck Institute for Biophysical Chemistry, Gottingen, Germany and German Cancer Research Center, Heidelberg, Germany and William E. Moerner of Stanford University, CA, USA "for the development of super-resolved fluorescence microscopy". STED Microscopy: Super-Resolved Ensemble Fluorophore Microscopy A STED microscope is built on the basis of a confocal laser scanning microscope (CLSM).6 At any given time, the objective focuses the laser light into a small spot, and all fluorophores inside this focal spot emit fluorescence, which is collected by the objective and directed to the detector. The light intensity of the focal spot distributes according to the point spread function (PSF). For a circular aperture in an ideal situation, the PSF displays a pattern called "airy disk", with a size proportional to the numerical aperture. The resolution of CLSM is determined by the size of the PSF and the size of PSF is diffraction limited. The basic idea of STED microscopy is to utilize nonlinear optics to engineer a smaller PSF below such limit. The diagram below (Fig. 1), shows a simple model for spontaneous emission and stimulated emission of a fluorophore. In the left panel, the fluorophore first absorbs a photon and goes from the ground state S0 to the exited state S1. It may relax from higher vibrational states to lower vibration states through non-radiative transition in several picoseconds, and in several nanoseconds (the fluorescence lifetime), it may spontaneously go back to the electronic ground state and release a fluorescence photon. In the right panel, a depletion beam is added, which can cause stimulated emission. Intuitively, the fluorophore at S1 can absorb a depletion photon, and then go back to S 0 by releasing two photons that have the same wavelength as the absorbed one. The key advantage is that we can precisely control the wavelength of stimulated emission output, which can be significantly different from the typical wavelength of fluorescence. The wavelength of depletion is chosen to be at the tail of the emission spectrum to avoid interferences with absorption and emission. Therefore, one can choose a barrier filter before the detector that blocks the depletion wavelength while passing most of fluorescence, so that fluorophores undergoing stimulated emission are effectively "dark", because their output photons cannot pass the barrier filter and thus cannot be detected. 23 School of Chemistry, S.U. Nobel Prize 2014 Fig. 1. Spontaneous emission and stimulation emission depletion principles. (This figure was adapted from http://www.anes.ucla.edu/sted/principle.html). Though the way to inhibit fluorescence emission is known, but to achieve superresolution, it is required to inhibit fluorescence at a certain region. Inhibit fluorescence at the periphery of the original PSF would allow to reduce the spot size. To do so, the depletion laser beam should have an intensity profile with a doughnut (donut)-shape. The PSF of the laser beams can be visualized by imaging gold nanoparticles with a size of ~80 nm, shown in the Fig. 2. Fig. 2A shows the PSF of the excitation beam (in green), which displays an airy disk pattern; Fig. 2B shows the PSF of the depletion beam (in red) in a donut-shape; Fig. 2C is an overlay of A and B (since the depletion beam is in fact much more powerful than the excitation beam, in Fig. 2C the red intensity is highly enhanced to approximate the reality), one can see that the periphery (in yellow = red + green) is covered by the depletion beam and fluorophores in this region would be all inhibited. Only the centre is still in green where fluorophores would still be able to emit fluorescence. Fig. 2. PSF engineering with a donut-shaped depletion beam. (This figure was adapted from http://www.anes.ucla.edu/sted/principle.html) Fig. 3 shows the difference in resolution when a human neuron is imaged using labelled calcium-activated big potassium (BKCa) channels using regular confocal microscope (Fig. 3A) and STED microscope (Fig. 3B). 24 School of Chemistry, S.U. Nobel Prize 2014 Fig. 3. STED imaging of a human neuron where calcium-activated big potassium (BKCa) channels were labeled. (A) Regular confocal images of a human neuron. (B) STED image of the same neuron as in A. (This figure was adapted from http://www.anes.ucla.edu/sted/principle.html) Super-Resolved Single Fluorophore Microscopy The first observation of a single fluorophore in a dense medium was made in W. E. Moerner s laboratory.7 They measured absorption spectra of the statistical fine structures of inhomogeneously broadened optical transitions of single pentacene molecules in p-terphenyl crystals at liquid helium temperature K . Moerner s result was revolutionary, not the least because he managed to detect single fluorophore by their photon absorption rather than emission. His results demonstrated that it was indeed possible to measure single fluorophore and thereby greatly inspired the singlemolecule field. In short, these scientific results paved the way for both single-molecule spectroscopy and single-molecule microscopy. A very early discovery of great conceptual impact was the experimental demonstration of fluctuations in chemical reactions, and the application of the fluctuation-dissipation connection to determine reaction rate constants as carried out by Magde, Elson and Webb. 8,9 Later, Moerner was studying the light emission properties of single molecules of mutants of the green fluorescent protein GFP obtained from Roger Tsien s laboratory. The studies were performed at ambient temperature with the protein embedded in an aerated aqueous gel.10 Unexpectedly, when excited at 488 nm the protein was seen to undergo several 25 School of Chemistry, S.U. Nobel Prize 2014 cycles of intermittent fluorescence emission: the GFP molecules displayed blinking behaviour. After several blinking cycles, the molecules went into a stable dark state. Amazingly, from this dark state they could be re-activated by irradiation at 405 nm. These results demonstrated for the first time that it was possible to optically guide fluorescent proteins between active and inactive states by the sophisticated use of the inherent photochemistry of the protein. Moerner s demonstration of blinking and photo activation opened the road to exploring a vast space of GFP mutants for novel optical properties. J. Lippincott-Swartz engineered a GFP variant with striking properties.11 This mutant is initially optically inactive. It can, however, be activated by irradiation at 413 nm and then displays fluorescence when excited at 488 nm. Eventually, after intense irradiation at 488 nm the mutant is irreversibly inactivated by photo bleaching. Photoactivated Localization Microscopy (PALM) Betzig realized that Lippincott-Swartz's GFP mutant could possibly solve the problem of finding an optimal way to combine sparse sets of fluorophores with distinct spectral properties to a dense total set of fluorophores. The simple solution would be to activate a very small and thus sparse, random subset of GFP mutant molecules in a biological structure by low level irradiation at 413 nm. Subsequent irradiation at 488 nm would then be used to determine the positions of the members of the sparse subset at super-resolution. When the first subset had been irreversibly inactivated by bleaching, a second small subset could be activated and the positions of its members determined at high resolution, and so on until all subsets had been sampled and used to determine the structure under authentic super resolution conditions. This fulfilled both the condition of only a sparse subset being observed at a time, and the condition of high-frequency (dense) spatial sampling. In collaboration with Lippincott-Schwarz and H. F. Hess, Betzig12 expressed fusions of a photoactivatable GFP, similar to that described above11 and a lysosomal transmembrane protein (CD63) to obtain the superresolved structure of a thin section of a fixed mammalian lysosome (Fig. 4). They named this method as Photoactivated Localization Microscopy (PALM). 26 School of Chemistry, S.U. Nobel Prize 2014 Fig. 4. Distribution of GFP-labeled lysosome protein (CD63) without (A) and with (B) PALM. Large box in B at higher magnification (C). Small box in B at higher magnification (D). Note that the scale bar in D is close to Abbe s limit. (This figure was adapted from Ref. 12) The history of super-resolved fluorescence microscopy is short. The ensemblefluorophore STED-microscopy was implemented in the year 2000 and singlefluorophore based methods in the year 2006. In spite of this, the rapidly developing techniques of super-resolved fluorescence microscopy are already applied on a large scale in major fields of biological sciences, like cell biology, microbiology and neurobiology. At this point there is all reason to forecast that this development, already producing hosts of novel and previously unreachable results, will accelerate over the next decades. This development is expected to revolutionize biology and medicine by allowing for realistic, quantitative descriptions at nanoscale resolution of the dynamics of the complex, multidimensional molecular biological processes that define the phenotypes of all life forms. The Prize Winners Eric Betzig is an American Physicist based at the Janelia Farm Research Campus, Howard Hughes Medical Institute, VA, USA was born in Ann Arbor, Michigan in 1960. Dr. Betzig did his undergraduate in Physics at the California Institute of Technology in 1983 and moved to Cornell University for further studies. He obtained his MS degree in 1985 and Ph.D. in Applied and Engineering Physics in 1988. After receiving his Ph.D. degree, he joined Bell Laboratories in the Semiconductor Physics Research Department. 27 School of Chemistry, S.U. Nobel Prize 2014 In 1996, Betzig left academia to become vice president of research and development at Ann Arbor Machine Company. In 2006 he joined the Howard Hughes Medical Institute's Janelia Farm Research Campus as a group leader to work on developing super high-resolution fluorescence microscopy techniques. He developed photoactivated localization microscopy (PALM) with Herald Hess. Stefan Walter Hell is a Romanian-born (1962) German physicist and one of the directors of the Max Planck Institute for Biophysical Chemistry in Göttingen, Germany. He received his Ph.D. from Heidelberg University in 1980 in Physics. He worked as a group leader at the University of Turku, Finland from 1993 to 1996, where he developed the principle for stimulated emission depletion STED microscopy. 6 Prof. Hell became a director of the Max Planck Institute for Biophysical Chemistry and he established the department of Nanobiophotonics. Since 2003 Hell has also been the leader of the department "Optical Nanoscopy division" at the German Cancer Research Center (DKFZ) in Heidelberg and Professor in the Heidelberg University Faculty of Physics and Astronomy. William Esco Moerner was born in 1953 and is an American physical chemist and chemical physicist with current work in the biophysics and imaging of single molecules. He is credited with achieving the first optical detection and spectroscopy of a single molecule in condensed phases, along with his postdoc, Lothar Kador. 7 Optical study of single molecules has subsequently become a widely used single-molecule experiment in chemistry, physics and biology. He attended Washington University in St. Louis for undergraduate studies as an Alexander S. Langsdorf Engineering Fellow, and obtained three degrees: a B.S. in Physics with Final Honors, a B.S. in electrical engineering with Final Honors, and an A.B. in mathematics summa cum laude in 1975. This was followed by graduate study at Cornell University in the group of Albert J. Sievers III. Here he received an M.S. and a Ph.D. degree in physics in 1978 and 1982, respectively. 28 School of Chemistry, S.U. Nobel Prize 2014 References 1. Gould, S. J. (2000). The Lying Stones of Marrakech: Penultimate Reflections in Natural History. New York, N.Y: Harmony. 2. http://www.microscopyu.com/articles/confocal/resonantscanning.html. 3. Born, M.; Emil, W. (1997). Principles of Optics. Cambridge University Press. 4. Lipson, S. G.; Lipson, H; Tannhauser, D. S. Optical physics. Cambridge, New York, Melbourne: Cambridge University Press 1995, pp. 48-98, 152-190. 5. Hell, S. W. Nature Biotech. 21, 2003, 1347-1355. 6. http://www3.mpibpc.mpg.de/groups/pr/PR/2006/06_20/ 7. Moerner, W. E.; Kador, L. Phys. Rev. Lett. 62, 1989, 2535. 8. Elson, E. L.; Magde, D. (1974) Fluorescence correlation spectroscopy I. Conceptual basis and theory. Biopolymers, 13; 1. 9. Magde, D.; Elson, E. L.; Webb, W. W. Phys. Rev. Lett. 29, 1972, 705. 10. Dickson, R. M., Cubitt, A. B., Tsien, R. Y., Moerner, W. E. (1997) On/off blinking and switching behaviour of single molecules of green fluorescent protein. Nature 388; 355. 11. Patterson, G. H., Lippincott-Schwartz, J. (2002) A photoactivatable GFP for selective photolabeling of proteins and cells. Science 297; 1873. 12. Betzig, E., Patterson, G. H., Sougrat, R., Lindwasser, O. W., Olenych, S., Bonifacino, J. S., Davidson, M. W., Lippincott-Schwartz, J., Hess, H. F. (2006) Imaging intracellular fluorescent proteins at nanometer resolution. Science 313; 1642. H. Chakraborty School of Chemistry Sambalpur University Jyoti Vihar-768 019 29 School of Chemistry, S.U. Nobel Prize 2014 NOBEL PRIZE IN LITERATURE PATRICK MODIANO AND THE GLOWS IN THE DARK Patrick Modiano The Nobel Prize in Literature for 2014 was awarded to Patrick Modiano "for the art of memory with which he has evoked the most ungraspable human destinies and uncovered the life-world of the occupation . Modiano is the 15th person from France to win the literature prize – the last one being Jean-Marie Gustave Le Clezio in 2008. The prize is named after Alfred Nobel, the inventor of dynamite, and has been awarded since 1901 for achievements in science, literature and peace in accordance with his will. While he is well known in France, Modiano is something of an unknown quantity for even the most widely read literature fans in other countries, with only a smattering of his works published in English. Probably his best known work, for which he won France s prestigious Goncourt literary prize in 1978, is Missing Person, about a detective who loses his memory and endeavours to find it. The winner is chosen by an academy consisting of 18 prominent Swedish literary figures. This year 210 nominations were received, 36 of which were first timers. That then became a 20-name long list and then a five-name shortlist which involved academicians reading the entire outputs of different writers. Modiano received his prize on 10 December, the anniversary of prize founder Alfred Nobel s death in . Peter Englund, permanent secretary of the Swedish Academy, announced the name of the French writer Patrick Modiano as the winner of the 2014 Nobel Prize for Literature in Stockholm October 9, 2014. Modiano won the prize as "a Marcel Proust of our time," the Swedish Academy said on Thursday. Modiano was born in the Paris suburb of Boulogne-Billancourt in July 1945, several months after the official end of Nazi occupation in late 1944 in the final days of World War II to an Italian Jewish father and Belgian mother. He came of age in Paris, and there he was discovered by Raymond Queneau–who was also the youngster s mathematics teacher at the Lycée Henri-)V. Modiano s life experienced from the start discontinuity and turbulence, and it was all too fitting that his first novel was published in May of 1968, at a moment when France was beset by civil unrest that seemed poised 30 School of Chemistry, S.U. Nobel Prize 2014 to boil over into open revolt. Even Modiano s marriage would be best remembered for a fierce argument between two groomsmen, the literary titans Queneau and Malraux. Tragedy haunted him from a young age, and the formative experiences of his early years–the Nazi occupation, the death of his brother, the absence of his father–are echoed in his fiction, where issues of the war, death and cultural identity loom large. Modiano maintained a low public profile, but made a lasting mark with his fiction. He was awarded the Goncourt Prize in 1978 for Missing Person. The missing person in the title of Patrick Modiano's novel is the detective himself named Guy Roland who suffered from amnesia and the period of his life before launching his career as a private investigator became almost a complete blank. Even his name and nationality are a mystery to him. Now after a career of solving other people's problems, he turned to his own. The moment of crisis for Roland, when his past fell away, was during the period of Nazi occupation of France. In an era when many did things they would like to forget, Guy Roland somehow literally wiped his memory clean, a gesture rich with symbolic resonance. Now, as he tried to pick up the pieces, he followed an enticing series of clues, each one leading him to another informant, another piece of the puzzle. Yet the pieces did not seem to fit together. At one point, Roland was convinced that he was closely involved with Russian émigrés in his now forgotten past life. Yet other clues indicated that he was in Hollywood, serving as confidant to actor John Gilbert. Another source suggested that he was a part of the diplomatic corps for a Latin American nation. Or that his last name was really McEvoy, and he left France before the outbreak of the war. Or he was a Greek named Stern, a broker who resided in Rome and Paris. Or may be some combination of these enigmatic identities, these obscure destinies. Where other detectives gather clues, Roland collects mementos. Almost everyone he interrogated had a story to share–but not necessarily the one our investigator had come to hear. These various parties gave him relics from their own personal tragedies: old photos, letters, a magazine, a book. Soon he was overloaded with keepsakes, invariably stored in some second-hand container. "It certainly seemed everything ended with old chocolate or biscuit or cigar boxes," he muses. From these disparate sources Roland gradually pieced together bits and pieces of his own narrative. These were supplemented by flashes of recovered memory, but the reader is never quite sure whether the recollections are authentic or merely the result of an overheated imagination. Roland is too ready to agree, to play the role others assign him. He has lost more than his memory, it seems, and at times appears to have lost his sense of self as well. Modiano doesn't hesitate in shaking up the conventions of the mystery genre. And as our detective gets closer and closer to the story of his life, he seems to find himself as the victim of a crime, the wounded survivor of a now forgotten conspiracy, a character figured as victim, client, detective and key witness. In this quest 31 School of Chemistry, S.U. Nobel Prize 2014 for identity, the very notion of self begins to fade under close scrutiny. "Do not our lives dissolve into the evening?" our narrator concludes, as he accepts the possibility that the person he is seeking will never be found, his identity as ephemeral as "the sand holds the traces of our footsteps but a few moments . Patrick Modiano s Out of the Dark (1996) is a moody, expertly rendered tale of a love affair between two drifters. The narrator, writing in 1995, looks back thirty years to a time when, having abandoned his studies and selling off old art books to get by, he comes to know Gérard Van Bever and Jacqueline, a young, enigmatic couple who seem to live off roulette winnings. He falls in love with Jacqueline; they run off to England together, where they share a few sad, aimless months, until one day she disappears. Fifteen years later, in Paris, they meet again; a reunion that only recalls the haunting accessibility of the past: they spend a few hours together, and the next day, Jacqueline, now married, disappears once again. Almost fifteen years after that, he sees her yet again, this time from a distance he chooses not to bridge. A profoundly affecting novel, Out of the Dark is very much a poignant, strange, delicate, melancholy, and sadly hilarious novel. Beginning with his first novel in 1968, Modiano has created a unique cartography of Paris, delineated by memory and evoking a city forever changed by the upheaval of World War II. Exquisitely exhibiting both his dominant themes and his signature limpid prose style, the three tales in Suspended Sentences offer a superb introduction to the Nobel laureate Modiano wrote on topics such as memory, oblivion, identity and guilt, and the city of Paris is often present in his texts as a creative participant. Often his tales are built on an autobiographical foundation, on events that took place during the German occupation. He sometimes draws material for his works from interviews, newspaper articles or his own notes accumulated over the years. The author's hometown and its history often serve to link the tales together. A work of documentary character, with World War II as background, is Dora Bruder (1997) written on the true tale of a fifteenyear old girl in Paris who became one of the victims of the Holocaust. Some of Modiano's works have been translated into English, among them Les boulevards de ceinture (1972; Ring Roads: A Novel, 1974), Villa Triste (1975; Villa Triste, 1977), Quartier perdu (1984; A Trace of Malice, 1988) and Voyage de noces (1990; Honeymoon, 1992). Modiano has also written children's books and film scripts and together with the film director Louis Malle he made the feature movie Lacombe Lucien (1974), set during the German occupation of France. Modiano in his fiction asks the essential question, what does it mean to be French today at the dawn of the twenty-first century in a France that has in recent years weathered riots, debates about the veil and the burqa, and there is the reemergence of the extreme right as a political threat, and a purported decline in cultural identity. 32 School of Chemistry, S.U. Nobel Prize 2014 Underlying all of these issues is the tension between Frenchness and otherness represented by continued immigration from France s former colonies, and the aftermath of that immigration as ensuing generations reinterpret what it means to be part of a country that has long promoted its own brand of universalism, integration, and the erasure of public difference in favor of a harmonious and homogenous national body. Ernest Renan described a French nation in which ties to the land trumped blood ties, and common goals trumped common ancestry, despite his insistence on a shared past. In other words, to be French was to grow up in France and share its values, including a certain understanding of its history. Frenchness could be adopted, acquired, assimilated. Frenchness was not necessarily a birthright, but rather a belief system, a state of mind. The tenets of French universalism, including the notion that France represents the ideals of liberty and human rights before an international audience, continue to be transmitted by French politicians and received favorably by many outside France even to this day, although the borders and international standing of today s France are markedly different. After all, Renan s France still constituted an intact empire, and swaths of Africa, Asia, the Pacific, and the Caribbean were still governed with some form of French oversight. French was the language of diplomacy and carried greater practical as well as cultural weight than it does today. While France was not literally everywhere, its flag still flew from capitals all over the world, and the official use of its language was widespread. Modiano also said once in one of his interviews, "In the end, we are all determined by the place and the time in which we were born . (e believed that a writer is indelibly marked with the date of his birth and by his time, even if he was not directly involved in political action, even if he gives the impression of being a recluse shut away in what people call his 'ivory tower'. If he writes poems, they reflect the time he is living in and could never have been written in a different era . (e gives the examples of writers of the 20th century who, on occasion, feel imprisoned by their times, and like the great 19th century novelists – Balzac, Dickens, Tolstoy, Dostoyevsky – bring on a certain nostalgia. In the nineteenth century time passed more slowly than today, and this slowness suited the work and allowed the novelist to marshal his energy and his attention. The quickening pace of time since then explains the difference between the towering literary edifices of the past, with their cathedral-like architectures, and the disjointed and fragmented works of today. Modiano, standing at a transitional crucial juncture, is indeed curious to know how the coming generations, born with the Internet, mobile phones, emails and tweets, will express through literature this world in which everyone is permanently 'connected' and where 'social networks' are eating into that part of intimacy and secrecy that was still our own 33 School of Chemistry, S.U. Nobel Prize 2014 domain until quite recently – the secrecy and mystery that gave depth to individuals and could become a major theme in a novel. And besides, a writer always manages to express something timeless in his work even if he, like any other artist, is so tightly bound to his age that he cannot escape it and the only air he breathes is the air of the zeitgeist. For him, in productions of Racine or Shakespeare, it hardly matters whether the characters are dressed in period costume or the director wants to put them in jeans and a leather jacket. These are insignificant details. While reading Tolstoy, Anna Karenina feels so close to us after a century and a half that we forget she is wearing dresses from 1870. And there are some writers, like Edgar Allen Poe, Melville or Stendhal, who are better understood two centuries after their death than they were by their own contemporaries. Ultimately, a novelist remains at the margins of life in order to describe it, because if one is immersed in it – in the action – the image one would have of it is mixed up. But this slight distance does not limit the author's capacity to identify with his characters and the people who inspire him in real life. Modiano mentions Flaubert who said 'Madame Bovary is me'. And Tolstoy instantly identified with the woman he saw throwing herself under a train one night in a station in Russia. This gift of identification went so far that Tolstoy blended with the sky and the landscape that he was describing and that absorbed him entirely, down to the slightest batting of Anna Karenina's eyelash. Certain solitude does allow one to achieve a degree of attention and hyper-lucidity when observing the outside world, which can then be transposed into a novel. Under their gaze, everyday life ends up being enshrouded in mystery and taking on a kind of glow-in-the-dark quality which it did not have at first sight but which was hidden deep down. It is the role of the poet and the novelist, and also the painter, to reveal the mystery and the glow–in–the–dark quality which exist in the depths of every individual. Perhaps the novelist, at his best, is a kind of clairvoyant or even visionary , a seismograph, standing by to pick up barely perceptible movements . Modiano refers to a noteworthy childhood event which planted the seed of his future body of work and about which he did not always have a clear conscience, and this noteworthy event comes back in various guises to haunt his books. He brings in the story of Alfred Hitchcock, not a writer but someone whose films nevertheless have the strength and cohesion of a novel. When his son was five years old, Hitchcock's father told him to take a letter to a police officer friend of his. The child delivered the letter and the police officer locked him up in the screened-off section of the police station that is used as a cell holding all sorts of offenders overnight. The terrified child was in there for an hour before the police officer released him, explaining 'now you know what happens if you behave badly in life.' He is also reminded of something that happened to the poet Thomas De Quincey when he was young and that marked him for life. In London, in the 34 School of Chemistry, S.U. Nobel Prize 2014 crowd on Oxford Street, he made friends with a girl, one of those chance encounters that happen in a city. He spent a few days in her company and then he had to leave London for a few days. They agreed that after a week, she would wait at the same time every evening on the corner of Great Titchfield Street. But they never saw each other again. 'If she lived, doubtless we must have been some time in search of each other, at the very same moment, through the mighty labyrinths of London; perhaps even within a few feet of each other – a barrier no wider than a London street often amounting in the end to a separation for eternity . For Modiano, with the passing of the years, each neighbourhood, each street in a city evokes a memory, a meeting, a regret, a moment of happiness for those who were born there and have lived there. Often the same street is tied up with successive memories, to the extent that the topography of a city becomes your whole life, called to mind in successive layers as if you could decipher the writings superimposed on a palimpsest. And also the lives of the thousands upon thousands of other, unknown, people passing by on the street or in the Métro passageways at rush hour. In his youth, to help him write, he tried to find the old Parisian telephone directories, especially the ones that listed names by street with building numbers, and he got the feeling as he turned the pages that he was looking at an X ray of the city – a submerged city like Atlantis – and breathing in the scent of time. Because of the years that had passed, the only traces left by these thousands upon thousands of unknown individuals were their names, addresses and telephone numbers. Sometimes a name disappears from one year to the next. There was something dizzying about browsing through these old phone books and thinking that from now on, calls to those numbers would be unanswered. He would later be struck by the stanzas of a poem by Osip Mandelstam: I returned to my city familiar to tears, To my vessels and tonsils of childhood years, Petersburg, […] While you're keeping my telephone numbers alive. Petersburg, I still have the addresses at hand That I’ll use to recover the voice of the dead. So it seems to Modiano that the desire to write his first books came to him while I was looking at those old Parisian phone books. All ) had to do was underline in pencil the name, address and telephone number of some unknown person and imagine what his or her life was like, among the hundreds and hundreds of thousands of names. One can lose oneself or disappear in a big city. One can even change one s identity and live a new life. One can indulge in a very long investigation to find a trace of malice, starting only with one or two addresses in an isolated neighborhood. And he has always been fascinated by the short note that sometimes appears on search records: Last known 35 School of Chemistry, S.U. Nobel Prize 2014 address. Themes of disappearance, identity and the passing of time are closely bound up with the topography of cities. That is why since the 19 th century, cities have been the territory of novelists, and some of the greatest of them are linked to a single city: Balzac and Paris, Dickens and London, Dostoyevsky and Saint Petersburg, Tokyo and Nagai Kaf”, Stockholm and (jalmar Söderberg. Modiano is of the generation which was influenced by these novelists, and which wanted in turn to explore what Baudelaire called the 'sinuous folds of the old capital cities'. Until the 20th century, novelists maintained a more or less 'romantic' vision of the city, not so different from Dickens' or Baudelaire's. That is why he is curious to know how the novelists of the future will evoke these gigantic urban concentrations in works of fiction. Concerning his books, the Swedish Academy alluded to 'the art of memory with which he has evoked the most ungraspable human destinies'. It is about a peculiar kind of memory, which attempts to collect bits and pieces from the past and the few traces left on earth of the anonymous and the unknown. And this, too, is bound up with his year of birth: 1945. Being born in 1945, after the cities had been destroyed and entire populations had disappeared, must have made him, like others of his age, more sensitive to the themes of memory and oblivion. This layer, this mass of oblivion that obscures everything, means we can only pick up fragments of the past, disconnected traces, fleeting and almost ungraspable human destinies. Yet it has to be the vocation of the novelist, Modiano said in his Stockholm address, when faced with this large blank page of oblivion, to make a few faded words visible again, like lost icebergs adrift on the surface of the ocean . K. Misra P. G. Department of English Sambalpur University Jyoti Vihar-768 019 36 School of Chemistry, S.U. Nobel Prize 2014 NOBEL PRIZE IN PEACE NOBEL PEACE PRIZE – 2014: RELEVANT OR REDUNDANT Malala Yousafzai Kailash Satyarthi It is my pleasure to be amidst the faculty, scholars, students, and distinguished ladies and gentlemen again almost after a year to discuss on the Nobel Prizes for human endeavour and excellence which in the long run is going to impact the whole of mankind. I thank the School of Chemistry of Sambalpur University for organizing this annual event. Extramural activities of this nature connect the local with the global perception of human life, living and achievements and enhance the urge for the quest for knowledge. I have only rudimentary information on the Nobel Peace Prize and that too the prize that has been awarded this year. The statement that follows may not meet the bench mark of scholarly analysis and erudition. On 2nd of October last year I came across a news item informing of Archbishop Desmond Tutu, a recipient of the Nobel Peace Prize (1984, South Africa), castigating the government of South Africa for denying visa to His Holiness the Dalai Lama, another Nobel Peace Laureate to attend the Nobel Peace Prize winners' summit. The summit, scheduled in mid-October, was meant to celebrate the 20th anniversary of the end of apartheid and the legacy of Nelson Mandela, the late President of South Africa and another Nobel Peace Prize winner. Was the denial of visa to the Dalai Lama for an innocent event a mark of intolerance of the dissenting view or was it driven by politicoeconomic considerations of the extant South African Government? And a week after, comes the news of an Indian and a Pakistani national jointly winning this covetous prize, breaking the barriers of prolonged animosity and conflict between these two neighbours. A Recap on the Genesis of Nobel Prize Alfred Nobel died on December 10, 1896. A year earlier to his death, he left a will signed on November 27, 1895. This was the last of the three wills he made in his lifetime. The will stated, the whole of his remaining realizable estate and the capital derived thereof invested in safe securities by his executors, shall constitute a fund, the 37 School of Chemistry, S.U. Nobel Prize 2014 interest on which shall be annually distributed as cash prizes to those who shall have conferred the greatest benefit on mankind during the preceding year. The amount thus derived shall be divided into five equal parts, which shall be apportioned between persons who shall have made the most important discovery or invention within the field of physics, chemistry, physiology or medicine; and shall have produced in the field of literature the most outstanding and ideal work. One part shall be bestowed on the person who shall have done the most or the best work for fraternity between nations, for the abolition or reduction of standing armies and for the holding and promotion of peace congresses. The prizes for physics and chemistry shall be awarded by the Swedish Academy of Sciences; that for physiology or medicine works by the Karolinska Institute, the medical university at Solna in Stockholm; that for literature by the Academy in Stockholm, and that for peace by a committee of five persons to be elected by Storting, the Norwegian Parliament. Nobel explicitly expressed his wish that the most worthy shall receive the prize without any consideration of nationality of the candidates making the prizes nonpartisan and truly global in nature. Later in 1969, economics was brought within the ambit of Nobel Prize, taking the total number of prizes to six as on date. Nobel Prize for Peace – Genesis, Modalities and Deviation The prize for peace was to be awarded, according to the will of Alfred Nobel, to the person s or institution s who shall have done the most or the best work for fraternity between nations, for the abolition or reduction of standing armies and for the holding of peace congresses . There is an interesting deviation in awarding this prize. The prize was to be awarded by a committee of five persons to be elected by the Norwegian Storting . While all other prizes are awarded by the Swedish Academy, the Peace Prize is the one awarded by the Norwegian Storting. Nobel gave no reason why the prize for peace was to be awarded by a Norwegian committee while the other prizes were to be handled by Swedish committees. This allows space for several conjectures. The most likely ones could be: Alfred Nobel, who lived most of his life abroad and who wrote his will at the Swedish-Norwegian Club in Paris, may have been influenced by the fact that, until 1905, Norway was in union with Sweden. Since the scientific prizes were to be awarded by the Swedish Committees, at least the remaining prize for peace ought to be awarded by a Norwegian committee. Nobel may have been aware of the strong interest of the Norwegian Storting in the peaceful solution of international disputes in the 1890s. He might have in fact, considered Norway a more peace-oriented and more democratic country than Sweden. This could have motivated him to assign the responsibility to the Storting. Another conjecture could be, Nobel was an avid reader of Norwegian fiction, particularly by Bjornson, a well-known peace activist 38 School of Chemistry, S.U. Nobel Prize 2014 during the late nineteenth century and may have been influenced by Bjornson s ideas of global peace. Or it could have been a combination of these factors. The Peace Prize So Far Nobel peace prize has been awarded to 103 individuals and 22 organizations since 1901. For quite some time the award was given to only individuals for their contribution for global peace and efforts in ameliorating human suffering caused by strife and war. In later years various organizations working towards global peace were also considered and honoured with this award. On 19 occasions it was not awarded due to reasons like the two great wars during the first half of the twentieth century. In 1948 it was not awarded as a mark of respect to Mahatma Gandhi, who was being considered for the award that year, but had died earlier. Nobel Prizes by tradition are not awarded posthumously. Of the 103 individuals awarded the Nobel Peace Prize so far, 16 are women. Bertha von Suttner was the first woman to be awarded the peace prize in 1905. The others to follow are Jane Addams (1931), Emily Greene Balch (1946), Betty Williams(1976), Mairead Corrigan(1976), Mother Teresa (1979), Alva Myrdal (1982), Aung San Suu Kyi (1991), Rigoberta Menchú Tum (1992), Jody Williams (1997), Shirin Ebadi (2003), Wangari Maathai (2004), Ellen Johnson Sirleaf (2011), Leymah Gbowee (2011) and Tawakkol Karman (2011). And finally in 2014, it is Malala Yousafzai, our neighbourhood girl. She is the youngest to be honoured at the tender age of 17. Peace prize laureate for 1995 Joseph Rotblat at 87 is the oldest awardee of the Prize. So far fourteen Asians have been honoured with this coveted award. Students of Chemistry may be interested to know that Linus Pauling was awarded the Nobel Prize twice; once for Chemistry in 1954 and for Peace in 1962. This is the only occasion when an individual has been awarded the prize for his contribution in two different fields ( Peace is one of them). Another fascinating fact is, in 1973 this prize was jointly awarded to Henry Kissinger, the US Secretary of State and Lec du Tho, the Vietnamese revolutionary leader. Lec du Tho declined to accept the award where as Kissinger received it. The reason for refusal by Lec du Tho was alleged breach of faith by the US in maintaining armistice as agreed upon according to the Paris Peace Accord. It is interesting to note that the Nobel Prize for Peace was instituted over a decade before the First World War broke out. Hence, to say that only war disturbs peace would be a misnomer. Without even a bullet having been fired peace may get shattered due to oppression, exploitation, economic deprivation, superstition and ignorance. There are glaring examples of persons and institutions having been bestowed with the coveted Nobel peace prize for having served humanity during peace time and at the time of calamity - manmade or natural – gnawing at the very heart, soul and conscience of mankind. 39 School of Chemistry, S.U. Nobel Prize 2014 Modalities of Selection Recipients of other prizes in the Nobel award series are largely from the academic and scientific community. Their works are tangible and are available in the form of theorizations, publications, inventions and applications. Nothing of that nature could be ascribed to or expected of work done in the field of restoring, establishing or perpetuating peace in a global scale. From this point of view, setting any yardstick, norms or fixed matrix to adjudge nominees for the award is certainly a daunting task. For each award the Nobel Committee sets up a search group, and for the Peace prize the group consists of five eminent people. They solicit nominations from eligible nominators who have to be (a) members of national assemblies and governments of states; (b) members of international courts; (c) university rectors, professors of social sciences, history, philosophy, law and theology, directors of peace research institutes and foreign policy institutes; (d) persons who have been awarded the Nobel peace prize; (e) Board members of organizations that have been awarded the Nobel peace prize; (f) active and former members of the Norwegian Nobel committee and (g) former advisers to the Norwegian Nobel committee. The search group scans, vets, deliberates and shortlists the nominees according to the set will of Alfred Nobel. The most eligible person s or organization(s) for the coveted Peace prize are identified after due diligence and thoughtful deliberation. As per the Nobel Prize statute, the names of the nominees are kept secret and cannot be placed in public domain for at least 50 years from the year of nomination and award. There is no bar for re-nomination of a person or an organization year after year for as many times as is possible. This award cannot be given posthumously to any person. However, this rule does not hold good if the awardee dies post declaration of the award. The Year 2014 - Speculation and Choice The Norwegian Nobel committee received 278 nominations for the Nobel peace prize for 2014, the highest so far. Of these 47 are organizations and 231 are individuals. In the year 2013 the number of nominees was 259. Following are the names suggested by various fora and speculated by the media and the lobbyists. Denis Mukwege, a doctor in the Democratic Republic of Congo, for treating thousands of women gang-raped and tortured during the civil war; Malala Yousafzai, the teenager Pakistani girl who was shot in the head by Taliban militants in 2012 as punishment for her high profile campaign to encourage girls to go to school; Lyudmila Alexeyeva, Svetlana Gannushkina and Lilya Shibanova, the Russian human rights trio for opposing oppressive laws of the Putin regime; Claudia Paz y Paz, the first female Attorney General in Guatemala; Hu Jia of China, the dissident and human rights activist; Mary Robinson, the former president of Ireland - the first woman elected to the presidency; Helmut Kohl, the former Chancellor of Germany, who presided over the reunification of East and West Germany and made 40 School of Chemistry, S.U. Nobel Prize 2014 the deals for the creation of the common European currency, the Euro; Juan Manuel Santos, the President of Colombia who has embarked on a peace process to end a halfcentury of conflict and the guerrilla war in Latin America; Pope Francis, the first Latin American pontiff for his public call to shift the Catholic faith s stress away from opposition to reformative issues. There have been some surprising and controversial nominations too. Among them are Vladimir Putin, the Russian President sponsored by a Russian group according to whom, he actively promotes settlement of all conflicts arising on the planet ; Edward Snowden, the NSA whistle blower proposed by Stefan Svallfors, a sociology professor in Sweden for exposing the United States and British governments mass surveillance programmes had helped to make the world a little bit better and safe and Bradley Manning, a US soldier for his incredible disclosure of secret documents to WikiLeaks helped end the )raq War . There were debates in the media as to who is best suited for this coveted honour for 2014. Like last year TIME magazine carried a cover page news story on Malala Yousafzai, the Pakistani brave girl, this year The Guardian lobbied vigorously for Edward Snowden, the US surveillance whistle blower. Malala had lost last time, so is Snowden this time despite frantic media lobbying. The Awardees of 2014: Some Facts and Reasoning The announcement of award for the year 2014 did not bring any kind of surprise, at least in the case of Malala Yousafzai as she had been vociferously sponsored by the media, more so, the influential TIME magazine and certain other lobbyist of the west and the NATO block last year. Malala s courage, conviction and contribution espousing the cause for education of the girl child and empowerment of women had attracted global attention. Her case had been discussed on the floor of the United Nations Organization. Her challenging and the atrocious conduct of the Islamic Fundamentalists and the Pak Taliban when she was just fifteen shook the conscience of the entire committee of nations. Born on 12 July 1997, this teenager at 17 from the Swat Valley in the Khyber Pakhtunkhwa province is the youngest recipient of the Nobel peace prize. Shot in the head while on her way to the school, Malala underwent critical medical procedures to recover from both physical ailment and mental trauma. She is almost in exile now with her parents in Birmingham. While she being awarded the Nobel Prize for Peace has largely been hailed across the world, still there are critics who have assailed the move of the Nobel committee. Most of the dissenting noise has emanated from the fundamentalist groups in the Islamic bloc including Pakistan, her own country. In Pakistan, critics of her have been most uncharitable. One even went on to say, She s a fake, she never got shot in the head and there is no such thing as the Taliban. Another 41 School of Chemistry, S.U. Nobel Prize 2014 said, ) wish the world would stop talking about this girl. There are many Malala s in Pakistan and all around the world – why don t the Americans and British talk about those girls? When a Pakistani academic was asked by journalists if she felt proud of Malala winning a Nobel, she responded cryptically, This is a tricky question that isn t easy to answer. )t s complicated. For hardcore Pakistani extremists, Malala becoming a Nobel laureate is no cause for jubilation or celebration. But the fact remains, this brave heart has joined the league of celebrities like Mother Teresa and Aung San Suu Kyi, who too belong to Asia and have assigned their lives for amelioration of human suffering. The other recipient is our own Kailash Satyarthi. Born on 11 January 1954, into a Brahmin family, Kailash Sharma dropped his caste name and took the suffix Satyarthi, meaning seeker of truth . By education an engineer Satyarthi took up social issues and the cause of the underprivileged and the exploited quite early in life. He took to advocacy of children s rights and set up the Bachpan Bachao Aandolan Save Childhood Movement). He was an active member of the Bandhua Mazdoor Mukti Morcha (Bonded Labour Liberation Front). He acted with associates like Swami Agnivesh for eradicating the bonded labour system in India which is a black feudal legacy. At the instance and dogged efforts of Satyarthi that the International Labour Organisation (ILO) adopted the Convention No. 182 against the worst form of child labour which has found global recognition and acceptance. Will Satyarthi getting the Nobel Prize impact in any way the school dropout rate in India, more so in Odisha despite the Right to Education of the Children Act? Will it in any case dent the heinous Dadan and child labour system in the country at large and Western Odisha in particular? Or is the Prize a matter of personal achievement and in due course remain as a footnote in the history of Nobel Prize for peace? While many Indians felt elated at Kailash Satyarthi getting the Nobel peace prize for 2014, there is no dearth of critics who think if at all an Indian this time there are others more deserving than Kailash for this honour. The bitterest of critics is Mohan Guruswamy, the Chairman of the Centre for Policy Alternatives, an independent think-tank in New Delhi. In a signed article Guruswamy, in general criticises the Nobel Prize in these words, and I quote, The award of the Nobel Peace Prize clearly has political overtones. … )t is stipulated in Alfred Nobel s will, that the members of the Norwegian Nobel Committee be five retired members of the Storting, the Norwegian parliament, and be directly appointed by it. Then a country that is an active member of NATO, the most militarily engaged alliance of the western world, awards them. The award no longer has any criteria; save consideration that it serves a certain political agenda. (e goes on to write, ..... Kailash Satyarthi, I know personally. I first met him in the early s when he was an aide to Swami Agnivesh who was leading a heroic struggle to liberate bonded labour, then an endemic practice in India. It was during this 42 School of Chemistry, S.U. Nobel Prize 2014 campaign to liberate bonded labourers that Agnivesh noticed the number of children in servitude, serving out time in often hard labour for the debts of their parents. But not all these children were bonded. Agnivesh and Satyarthi had been toying with the idea of having a system of certification to ensure that bonded or child labour was not used in the manufacture of a product, at this stage only carpets and dhurries. Satyarthi on one of his US visits mentioned this to US Senator Tom Harkin. The Iowa Democrat responded enthusiastically to the idea that Indian goods for export should be required to have such a certification and began to push this idea with the US Trade Representative s office. At which stage the Indian government interceded with Agnivesh and convinced him that this will have disastrous consequences for all Indian exports for there is no way of knowing where in the supply chain child or bonded labour was used. But Satyarthi was not convinced. He now decided to spread his wings. The funders too were very supportive. Thus began the Bachpan Bachao Andolan (literally Save Childhood Movement) to put an end to the employment of children. This is always a problematic issue in a poverty ridden country and that too one without a social security net in place to catch the falling. But Satyarthi pushed ahead. Funds were not an issue. There were plenty of foreigners eager to help. Even today the clutch of activities and foundations he controls are mostly foreign funded. Most of them were in fact working for fairly decent wages to mitigate the economic circumstances of the family. But as Agnivesh puts it: A child never works long hours every day voluntarily. There is a compulsion to do so. Even if it is due to economic reasons it is forced on the child . This too therefore was deemed by the Bandhua Mukti Morcha (BMM) as bonded labour. Little did he realise then, that it would one day become a major favourite with western funding agencies such as the Hague-based Novib, the London-based Christian Aid and the Washington-based Bread for the World. The narrow funding stream was soon a torrent. The essence of what Guruswamy says is, Kailash has thrived on others ideas and on foreign funding and thus is a secondary ideologue and west-sponsored activist. He winning the award according to Guruswamy is neither fair nor reasonable. Be that as it may, the Prize citation reasons for the prize in these words: the Nobel Prize for Peace, is awarded jointly to Kailash Satyarthi and Malala Yousafzai for their struggle against the suppression of children and young people and for the right of all children to education . One aspect of this prize for 2014 cannot be ignored. India and Pakistan have umbilical relationship. They share the same agony of partition and have been engaged in sporadic conflicts since 1947, which on occasions have flared up into full scale wars. Their governments share mutual suspicion for one another. At the same time two of their citizens sharing the most coveted global award for peace is no less than a matter of 43 School of Chemistry, S.U. Nobel Prize 2014 satisfaction for the people of these socio–culturally contiguous countries. Will this event signal for better relationship in the future? Will it augur bon homie? Only time will tell. Questions and Controversies: Nobel Prize Missed the Mahatma Like several national or international prizes, the Nobel Prize is not without aberrations and its share of controversies. There is a perception that the prize is Eurocentric. Besides, the Committee has deliberately ignored in the past many deserving individuals for this honour. Mahatma Gandhi is a bright example of being victim of this colonial and Eurocentric attitude and discrimination. He had been nominated five times between 1937 and 1948 for the Nobel prize for Peace but every time his nomination was negated. Decades later Nobel committee publicly declared its regret for the omission. Geir Lundestad, Secretary of Norwegian Nobel Committee in 2006 said, "The greatest omission in our 106 year history is undoubtedly that Mahatma Gandhi never received the Nobel Peace Prize. Gandhi could do without the Nobel Peace Prize, whether Nobel Committee can do without Gandhi is the question". Last Words Eventually, I would like to relate India to this coveted global honour and recognition for pioneering work in various fields for the betterment of mankind. Till date ten persons, either Indian citizens (including British India) and of Indian origin with foreign nationality have received this prize. This includes Ronald Ross, born in Almora (Uttarakhanda) for physiology or medicine in 1902, Rudyard Kipling, an English man born in Bombay for Literature in 1907 and Mother Teresa of Albanian origin for Peace in 1979. Rabindra Nath Tagore (Literature-1913), Chandrasekhara Venkata Raman (Physics-1930), Amartya Sen (Economics-1998) too have made India proud by receiving the Nobel Prize. The other three: Hargobind Khorana (Medicine-1968), Subrahmanyan Chandrasekhar (Physics-1983), Venkatraman Ramakrishnan (Chemistry-2009) are of Indian origin but took citizenship in countries of their choice. Some even tend to put in this list Mohammad Abdus Salam (Physics-1979) and Mohammad Yunus (Peace-2006). Both were born in British India, but Salam got the prize as a citizen of Pakistan and Yunus as from Bangladesh. By that stretch of weird imagination one may even put V. S. Naipaul (Literature-2001), a person of Indian descent but born in Trinidad and His Holiness, the 14 th Dalai Lama (Peace-1989), a Tibetan now in exile in India in the list of Indian awardees to elongate the list. But it is stretching the imagination too far. In fact our share of the Nobel honour is too little. It is almost negligible. Why? Is it because Indian conditions are not conducive for scientific quest? Is it because study of basic and pure science has taken a back seat in our academic priorities? This is not only my view. Even former President Dr. A. P. J. Abdul Kalam thought so in anguish. He 44 School of Chemistry, S.U. Nobel Prize 2014 desired our universities to seriously ponder over this deficiency. However, despite all odds India has so far bagged the Nobel Prize in all the six categories. That is a solace. At the same time India could not safe keep the Nobel Medal of Rabindra Nath Tagore which was burgled from Viswa Bharati, Shantiniketan, and the institution of his vision. Is it not a matter of concern and shame? Now, we are happy with the replica of the lost medal which the Nobel Committee gave as a compensation for our negligence. In conclusion, it would be apt to quote the Latin inscription on the medal for the Nobel Peace Prize, Pro pace et fraternitate gentium . In English it means, "For the peace and brotherhood of men". Despite this, why intolerance and conflict, why war and genocide, why hunger and strife, why ignorance and insecurity? (as Om Shanti.. Shanti.. Shanti... , the eternal Vedic chant lost its relevance in a materialistic world of warmongers? Is power by the arms more valuable than peace by conscience? These are questions to be addressed by the collective wisdom of mankind. I again thank all my friends for having given me a patient hearing for so long. A. K. Padhi Noted Columnist Former Deputy Director-General All India Radio & Doordarshan, Sambalpur 45 School of Chemistry, S.U. Nobel Prize 2014 NOBEL PRIZE IN ECONOMICS MARKET POWER AND REGULATION Jean Tirole Jean Tirole is awarded Nobel Prize for Economics Sciences 2014, for his important theoretical research contributions in a number of areas, but most of all his clarification on how to understand and regulate industries with a few powerful firms. The field of Industrial Organization studies how market functions. The main emphasis is on how firm exercises their market power in imperfectly competitive markets, how they interact with other firms, the welfare implications of such behavior, and the justification for government intervention. In the case of natural monopolies, the government may directly regulate the monopolist. Many governments have opened up public monopolies to private stake-holders. This has applied not only to industries such as railways, highways, water, post and telecommunications but also to the provision of schooling and healthcare. The experiences resulting from these privatization have been mixed and it has often been more difficult to get private firms to behave in the desired way. Many markets allow more than one firm to operate, and it may be in the public interest to promote competitive behavior in these industries. Oligopoly theory provides a scientific foundation for such interventions. The difficulty is that the regulatory authority lacks information about the firms; cost and the quality of the goods and services delivered. This lack of knowledge often provides regulated firms with a natural advantage. Simple rules for regulatory policies, such as capping prices for monopolists and prohibiting cooperation between competitors in the same market, while permitting cooperation between firms at different positions in the value can exist. (owever Tirole s research would come to show that such rules work in some conditions, but that it does more harm than good in others. Price Cap can provide dominant firms with strong motives to reduce costs- a good think for the society- but may also permit excessive profiles- a bad thing for society. Cooperation on price setting within a market is usually harmful, but cooperation regarding patent tools can benefit everyone involved. The 46 School of Chemistry, S.U. Nobel Prize 2014 merger of firm and its supplier may lead to more rapid innovation, but it may also distort competition. A new theory was needed for Oligopoly markets, because not even extensive privatization creates enough space for more than a small number of firms. There was also a need for a new theory of regulation in situations of asymmetric information, because regulators often have poor knowledge of firms conditions. Tirole s research attempts to build new scientific methods, particularly in Game Theory and Contract Theory. In 1986, Tirole and his now deceased colleague Jean-Jacques Laffont made an important contribution to the theory of regulation. They demonstrated how a clever set of production contracts can circumvent the problem of asymmetric information in a market where the regulatory authority lacks complete knowledge of a monopoly s costs and choices of production techniques. Producers with high cost will choose a contract with relatively high compensation for his costs- and thus have little motivation to reduce them. Producer with greater opportunities to reduce his costs will choose a contract with relatively low compensation for its costs, but with a higher price for the services he delivers- and thus have a strong incentive to reduce costs. A single contract that strikes a compromise between these aspects would result in unnecessarily large profits if it is easy for the firm to cut its costs. During 1980s and 1990s, Laffont and Tirole applied their theory to range of issues. They summarized the results in a book on Public Procurement and Regulation, published in 1993, which has greatly influenced regulation in practice. The theoretical results for how different types of regulation might work have also received convincing support in empirical studies of individual industries. In many cases, question arises about the time frame for regulation: for what period should the first set of regulations be designed, and how should it be reviewed and renewed? Laffont and Tirole analyzed these questions in two significant articles from 1988 and 1990, which were based on work carried out by Freixas, Laffont and Tirole in 1985. Suppose the regulator and producer cannot sign a long-term contract, but only a series of short-term contracts. This means that the producer s current actions may affect his future regulation. If a low cost producer works hard and thus achieve large profits during the first contract period, the regulatory authority may tighten the demands of the next contract in order to reduce the profit potential. The risk is that the producer predicts this rate that effect and thus works less hard, disadvantaging the business. If the authority cannot draw up long-term contract it is impossible to get the producer to choose the appropriate effort at a reasonable cost, and thus indirectly reveal its cost conditions. Instead, the authority should choose to use weaker incentive 47 School of Chemistry, S.U. Nobel Prize 2014 and gradually learn these conditions- this will happen quickly if the business is complex and unprofitable, and more slowly if it is simpler and more profitable. In most countries, a framework for regulation is first decided at a higher level (the government) and a public authority is then tasked with designing the precise terms of the regulations. In 1986, Tirole had analyzed the optimal reward system in a similar hierarchical relationship, studying a more general case with one principal (owner), one supervisor (foreman) and one agent (worker). The primary problem is that the authority and the firm have more information about the business than the government. A poorly designed framework means that there is a risk of the two colluding to hide this information from the government, to the benefit of the business; the authority becomes the firm s advocate. )n , Laffont and Tirole examined how regulation should be designed to minimize this risk. The main result of their analysis is that the government should establish a framework that explicitly considers the risk of the regulator hiding information and colluding with the regulated firm. Even with a well-designed framework, a regulator will sometimes appear to be an advocate of the firm, but despite this he will nevertheless not allow himself to be bribed or actively withhold information. It is not only monopolies that require regulation, Oligopoly market do too. Along with his co-authors, Tirole has provided a number of important contributions to theories of competition law, such as analyses of the competitive effects of patents, technical advances and strategic investments. Patents can provide firms with strategic advantage. In 1983 Tirole, working with Dew Fudenbery, Richard Gilbert and Joseph Stiglitz, analyzed the conditions for patent races between firms. They predicted intense races in areas where several companies are at roughly the same level, but lower levels of investment in research and development when one of the companies is far ahead. In an article from 1984, Fudenbery and Tirole used game theory to analyze how a firm can influence its competitors strategically. A strategic investment has long-term effects on the firm s profitability. One vital question is whether the investments make the firm more (or less) aggressive in future competition. One example is an investment that reduces the firm s marginal costs. The next question is the way in which competing firm s best deal with such competition. )n some markets, aggressive investments will bring rewards, as competitors will abstain from market shares. In other markets, such investments are unprofitable, as they will in turn be met with aggressive behavior. Indepth understanding of the particular conditions of a specific industry is therefore necessary to determine what type of strategy is most profitable for firms in that industry. These are important insights for both practitioners and competition authorities. Practitioners may make mistake if they uncritically try to transfer lessons 48 School of Chemistry, S.U. Nobel Prize 2014 learned in one market to another one, and the authorities may make mistakes if they regulate firms without taking specific market conditions into account. There are no simple, standard solutions for regulation and competition policy, as the most appropriate ones will vary from one market to another. Jean Tirole has therefore also studied the conditions of specific markets, and contributed new theoretical perspectives. Traditionally, undercutting prices has been disciplined under competition law, because setting prices below production costs is one way of getting rid of competitors. However this is not necessarily true of all markets. Consider the news paper market for example, where giving away papers for free can be a way of attracting readers and thus new advertisers to cover the losses due to production and distribution. In this case it is doubtful whether undercutting should be banned. Along with JeanCharles Rochat, Tirole has increased understanding of these platform markets where there is a strong link between players on different sides of technical platforms, such as readers and advertisers in the case of news papers. Other examples of similar platforms are credit/debit cards, and social media. What happens when someone has a monopoly in an area that is an important link in a production chain? This classic problem is illustrated by a modern phenomenon: a particular firm s software or operating system becomes dominant in its area. Formerly, the belief was that such companies may well make monopoly profits in their own area, but that competition prevents them from benefitting from their position in the next link in the production chain. In two studies- one with Patrick Rey in 1986, one with Oliver Hart in 1990 – Tirole has demonstrated that this belief is not justified; mastering one link of a chain can allow a monopolist to make profits in the market of the next link. In reality, it is often by distorting competition in a neighbouring market a monopolist is able to make a profit. One example is the producer of a cost-reducing, patented innovation. If the firms that are potential purchasers of this innovation operate in a market with stiff competition, the producer will find it difficult to earn a lot of money if he sells to all the firms at the same time; market competition produces low profits even after the reduction in costs, so the producer must maintain a low price. However, if the innovation is only sold to one firm, this firm makes a high profit because it becomes more efficient than its competitors. The producer can then set his price considerably higher. However, it is far from clear that producer can commit to selling to only one firm. Once the sale has taken place, it is worthwhile for the producer to sell to additional firms, but if the first customer realizes this risk, his willingness to pay significantly diminishes. The producer must therefore promise not to make any more sales. In order for this promise to be credible, it is necessary to either sign some form of exclusive 49 School of Chemistry, S.U. Nobel Prize 2014 contract or actually merge the two firms. Competition Law therefore has to weigh these two considerations against each other: on the one hand, vertical contracts can limit competition but, on the other hand, they encourage innovation. This type of reasoning has provided a new and robust foundation for legislation and legal usage concerning vertical contracts and merger. So, this is yet another example of the same general result: desirable competition policies are different from market to market. Jean Tirole research contributions are characterized by through studies, respect for the peculiarities of different markets, and the skillful use of new analytical methods in Economics. He has penetrated deep into the most central issues of Oligopolies and asymmetric information, but he has also managed to bring together his own and other s results into a coherent framework for teaching practical application, and continued research. Tirole s emphasis on normative theories of regulation and competition policy has given his contributions practical significance. S. S. Rath P. G. Department of Economics Sambalpur University Jyoti Vihar-768 019 50 School of Chemistry, S.U. Nobel Prize 2014 FACT FILE OF NOBEL PRIZE AWARDS: AT A GLANCE THE YOUNG NOBEL LAUREATES (<36) Entry Name of the Laureates Age Category Year Date of Birth 1 Malala Yousafzai 17 Peace 2014 12 July 1997 2 Lawrence Bragg 25 Physics 1915 31 March 1890 3 Werner Heisenberg 31 Physics 1932 5 December 1901 4 Tsung-Dao Lee 31 Physics 1957 24 November 1926 5 Carl D. Anderson 31 Physics 1936 3 September 1905 6 Paul A. M. Dirac 31 Physics 1933 8 August 1902 7 Frederick G. Banting 32 Medicine 1923 14 November 1891 8 Tawakkol Karman 32 Peace 2011 7 February 1979 9 Rudolf Mössbauer 32 Physics 1961 31 January 1929 10 Mairead Corrigan 32 Peace 1976 27 January 1944 11 Brian D. Josephson 33 Physics 1973 4 January, 1940 12 Joshua Lederberg 33 Medicine 1958 23 May 1925 13 Betty Williams 33 Peace 1976 22 May 1943 14 Rigoberta Menchú Tum 33 Peace 1992 9 January 1959 15 Donald A. Glaser 34 Physics 1960 28 February, 2013 16 James Watson 34 Medicine 1962 6 April, 1928 17 Guglielmo Marconi 35 Physics 1909 25 April, 1874 18 Max von Laue 35 Physics 1914 9 October, 1879 19 Arthur H. Compton 35 Physics 1927 10 September, 1892 20 Frédéric Joliot 35 Chemistry 1935 19 March, 1900 21 Chen Ning Yang 35 Physics 1957 1 October, 1922 22 Martin Luther King Jr. 35 Peace 1964 15 January, 1929 51 School of Chemistry, S.U. Nobel Prize 2014 THE OLD NOBEL LAUREATES (>80) Entry 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 25 27 28 29 30 31 32 33 Name of the Laureates John R. Mott René Cassin Barbara McClintock Ronald H. Coase François Englert Georg Wittig WIlliam Vickrey Robert F. Furchgott Oliver Smithies Alice Munro Jaroslav Seifert Charles J. Pedersen George H. Hitchings Martin Karplus Pyotr Kapitsa William S. Knowles Thomas C. Schelling Peter Higgs Theodor Mommsen Willard S. Boyle John B. Fenn Robert G. Edwards Isamu Akasaki Ferdinand Buisson Peyton Rous Karl von Frisch Joseph Rotblat Vitaly L. Ginzburg Yoichiro Nambu Raymond Davis Jr. Doris Lessing Lloyd Shapley Leonid Hurwicz Age Category Year Date of Birth 81 81 81 81 81 82 82 82 82 82 83 83 83 83 84 84 84 84 85 85 85 85 85 86 87 87 87 87 87 88 88 89 Peace Peace Medicine Economics Physics Chemistry Economics Medicine Medicine Literature Literature Chemistry Medicine Chemistry Physics Chemistry Economics Physics Literature Physics Chemistry Medicine Physics Peace Medicine Medicine Peace Physics Physics Physics Literature Economics 25 May, 1865 5 October, 1887 16 June, 1902 29 December, 1910 6 November, 1932 16 June, 1897 21 June, 1914 4 June, 1916 23 June, 1925 10 July, 1931 23 September, 1901 3 October, 1904 18 April, 1905 15 March, 1930 8 July, 1894 1 June, 1917 14 April, 1921 29 May, 1929 14 October 1914 22 October 1919 2 June 1923 27 September, 1925 30 January, 1929 20 December, 1841 5 October 1879 20 November 1886 4 November 1908 4 October 1916 18 January 1921 20 December 1841 15 June 1917 30 November 1817 90 Economics 1946 1968 1983 1991 2013 1979 1996 1998 2007 2013 1984 1987 1988 2013 1978 2001 2005 2013 1902 2009 2002 2010 2014 1927 1966 1973 1995 2003 2008 2002 2007 2012 2007 19 August 1929 52 School of Chemistry, S.U. Nobel Prize 2014 NOBEL LAUREATE FAMILIES Entry Name of the Nobel Laureates Relation Category Year(s) 1 Pierre Curie Marie Curie Husband-Wife Physics 1903* 2 W. Henry Bragg W. Lawrence Bragg Father-Son Physics 1915 3 F. Joliot-Curie Irène Joliot-Curie Husband-Wife Chemistry 1935 4 G. Radnitz Cori C. Ferdinand Cori Husband-Wife Medicine 1947 5 J. J. Thomson G. Paget Thomson Father-Son Physics 1906/1937 6 Niels Bohr Aage Bohr Father-Son Physics 1922/1975 7 Manne Siegbahn Kai Siegbahn Father-Son Physics 1924/1981 8 H. von Euler- Chelpin Ulf von Euler Father-Son Chemistry / Medicine 1929/1970 9 C.V. Raman S. Chandrasekhar Uncle-Nephew Physics 1930/1983 10 Arthur Kornberg Roger D. Kornberg Father-son Medicine / Chemistry 1959/2006 11 Jan Tinbergen Nikolaas Tinbergen Brothers Economics / Medicine 1969/1973 12 Paul Samuelson Kenneth Arrow Brothers-in-Law Economics 1970/1972 13 Gunnar Myrdal Alva Myrdal Husband-Wife Economics / Peace 1974/1982 14 Edvard I. Moser May-Britt Moser Husband-Wife Medicine 2014 * The Curie family is involved in receiving the most Nobel Prizes, with five. Marie Curie received the prizes in Physics (1903) and Chemistry (1911). Her husband, Pierre Curie, shared the 1903 Physics prize with her. Their daughter, Irène Joliot-Curie, received the Chemistry Prize in 1935 together with her husband Frédéric Joliot-Curie. In addition, the husband of Marie Curie's second daughter, Henry Labouisse, was the director of UNICEF when it won the Nobel Peace Prize in 1965. 53 School of Chemistry, S.U. Nobel Prize 2014 POWERFUL EQUATIONS AT NOBEL CORNER No. of Times Awarded to One Two Three Laureate Laureates Laureates Nobel Prize Category No. of Times Awarded 1 Physiology or Medicine 105 38 32 2 Physics 108 47 3 Chemistry 106 4 Literature 5 6 Sl. No. No. of Laureates No. of Times Not Awarded Person(s) Organization(s) Total 35 09 208 00 207 31 30 06 199 00 199 63 23 20 08 169 00 169 107 103 04 00 07 111 00 111 Peace 95 64 29 02 19 103 25* 128 Economics 46 23 17 06 00 75 00 75 567 338 136 93 49 865 25 889 Total * 22 individual organizations have been awarded the Nobel Peace Prize; UNHCR & ICRCs have been honoured twice and thrice, respectively. 54 School of Chemistry, S.U. Nobel Prize 2014 TOGETHER WE CAN Malala Yousafzai and Kailash Satyarthi hold up their Nobel medals during the Nobel Peace Prize Awards (for their pioneering work on promoting child rights in the troubled sub-continent, as they made an impassioned plea to globalize compassion) ceremony at the City Hall in Oslo, Norway. What they said… Though I appear as one girl, one person, who is 5ft 2in tall, if you include my high heels. I am not a lone voice, I am many. I am also glad that we (Satyarthi) can stand together and show the world that an Indian and a Pakistani can be united in peace and together work for children s right. ) am Malala but ) am also those million girls who are deprived of education, ) m not raising my voice, it is the voice of those 66 million girls. Malala Yousafzai There is no greater violence than to deny the dreams of our children. Let s democratize justice, let s universalize knowledge. Together, let us globalize compassion. …But many things happening today and the best thing that happened is that a young and courageous Pakistani girl has met an Indian father and the Indian father met the Pakistani daughter. Kailash Satyarthi It was important that a Muslim and a Hindu, a Pakistani and an Indian, had joined in what it called a common struggle for education and extremism. Nobel Committee 55 School of Chemistry, S.U. Nobel Prize 2014 ABOUT AUTHORS Sadhu Charan Panda He was born in Kalahandi (1959), did his Schooling and College education in Kalahandi and Sambalpur. After graduation in M.B.B.S from Utkal University, he served periphery in health services, Orissa; in Districts of Kalahandi, Bolangir and Sambalpur from 1986 to 1997. Since then he joined Orissa Medical Education Service cadre at V.S.S. Medical College after becoming M.D. in S.P.M. Presently working as an Associate Professor, Department of Community Medicine, V.S.S. Medical College, Burla. He has edited Journal of Community Medicine from to . (e is a reviewer of Mensana Monograph , Medical Education and Vaccine Safety . Besides teaching he is a researcher, trainer, evaluator, public speaker and an expert in public health. He has published research papers in National and International journals and participated in National/International meets workshop and conferences. He is a member of Indian Medical Association, Indian Association of Preventive and Social Medicine, Indian Public Health Association and World Association of Medical Editors. He is a Multiple Paul Harris Fellow of Rotary International and a partner of Brighton Collaboration , Switzerland. He devotes his extra time with social works and in writing poems. Sanjay Agrawal He was born in 1972 at Durg, Chattisgarh and did his entire education from Sambalpur, Odisha. Did his B.Tech and M.Tech from UCE Burla (now V.S.S.U.T.) in 1995 and 2003, respectively. (e has deposited his Ph.D. thesis entitled Digital Image Processing in Sambalpur University (still waiting for the call). He is involved in the teaching profession since 1995. Now he is working as an Assistant Professor in the department of Electronics and Tele-Communications, V.S.S.U.T., Burla. His philosophy says, he is a learner and wants to be a learner throughout. Hirak Chakraborty He was born in 1977, did his M.Sc. in Chemistry in 2000 from Jadavpur University, Kolkata. He has completed both his Post M.Sc. Associateship (Biophysical Sciences) in 2001 and Ph.D. in 2006 from Saha Institute of Nuclear Physics, Kolkata. One of his research paper from Ph.D. work was highlighted in Nature India. He worked as Postdoctoral Research Associate in the Department of Biochemistry and Biophysics, University of North Carolina at Chapel Hill, USA from 2007 to 2012. He came back to Centre of Cellular and Molecular Biology (CCMB), Hyderabad as CSIR-Pool Scientist in 2012 and has been working there since he joined School of Chemistry, Sambalpur University as UGC-Assistant Professor through UGC Faculty Recharge Programme in November 2014. He has published 23 papers and 1 book chapter. He received CSIR Travel Award in 2014 to participate in a conference in Germany. 56 School of Chemistry, S.U. Nobel Prize 2014 Kalidas Misra He was born in 1955, did his M.A. (English) in 1976, and Ph.D. in 1987 from Utkal University. He is at present Professor & Head, Department of English, Sambalpur University. He was a Post-doctoral Fulbright Fellow at La Salle University, Philadelphia and Colorado State University, Fort Collins, USA in 1992. He was also a Shastri IndoCanadian Faculty Research Fellow in 1996 at the University of Manitoba, Canada. His doctoral dissertation on The War Novel in America: A Study of Changing Response done at Utkal University received the Best Dissertation Award given by the American Studies Research Centre, Hyderabad in 1989. He was also associated with the Orissa Research Project of the German Research Council, University of Heidelberg, Germany to collaborate in the translations of the poems of Bhima Bhoi, the Nineteenth Century Oriya Poet, later published as Bhima Bhoi:Verses from the Void:Bhima Bhoi, The Mystic Poetry of an Oriya Saint. His poems and translations have appeared in journals like Indian Literature, New Quest, Chandrabhaga, Skylark, Ojas, Banajyotsna and Four Quarters (Philadelphia). Abhaya Kumar Padhi He was born in Rampela, Sambalpur (1949), did his Masters from the Post-Graguate Department of English of Sambalpur University in 1972. After serving as a lecturer in various colleges for a short spell, on being selected by the Union Public Service Commission he joined Government of India, Ministry of Information and Broadcasting in 1975. He has held various staff postings while posted in the headquarters in New Delhi, prominent among them as Director Personnel, Policy, Parliamentary Affairs, and International Relations in different spells. As Deputy Director-General he handled AIR Commercial Broadcasting Service, Marketing Division, Vividh Bharati, Games and Sports Broadcasts, AIR Central Archive and Eastern Region of AIR comprising the states of Orissa, Bihar, Jharkhand, West Bengal and union territory of the Andaman & Nicobar Islands. He was Additional Director-General for the Eastern Region of Prasar Bharati (both AIR and Doordarshan) handling the affairs in four states and a Union Territory till retirement on 30th September, 2009. He has several publications to his credit that include an anthology of poetry entitled Janmandhara )ndradhanu Barnana, several short stories, poems and essays in established Oriya magazines, prominent among them are Jhankar, Nabapatra, Nabalipi, Chitra, Sambad Puja Sankhya, Sachitra Vijaya, Girijhara, Sagar, Istahar, Katha to name a few. He has visited many countries in connection with training programmes and conferences like Trans-border Broadcasting, Application of Meta-plan Technique in Broadcasting Management. Headed the Indian Broadcasting contingent for coverage of various International sports events like Commonwealth Games - 2006 in Melbourne (Australia) and Asian Games- 2006 in Doha 57 School of Chemistry, S.U. Nobel Prize 2014 (Qatar). Acted as Nodal Officer of the Commonwealth Broadcasting Association during its annual conference held in New Delhi in 2005. Headed the Indian delegation at the SAARC Audio-Visual Exchange Programme Committee Meet in Bangladesh, Bhutan and Maldives. He has been honoured with Annual Akashvani Awards for innovative programme, received awards and honour for excellence in several productions at various stations like Sambalpur and Cuttack including one from Shri Atal Bihari Vajpayee, former Prime Minister. Presently he is appointed as a Guest Faculty of Indian Institute of Mass Communication, Member of the Senate, Sambalpur University Chancellor s nominee and Media Consultant, Odisha Electricity Regulatory Commission, Bhubaneswar. He runs a regular column in the widely circulated Odia daily Sambad and contributes articles on current affairs to various journals and publications. Sudhansu Sekhar Rath He was born in 1960, presently he is Professor in P.G. Department of Economics, Sambalpur University. His specialization is Mathematical Economics, Econometrics, and Finance. He has completed his Ph.D. in Public Choice. At present he is pursuing his research on Public Choice Theory, New Institutional Economics, Government Finance and Financial Economics. He has published twenty six research papers in the Journals of National and International repute. He has also published seventy popular articles out of which forty articles in Encyclopedia of World Poverty, Organized Crime, Modern Slavery, etc. He has authored reading materials for IGNOU, in Public Economics. Under his supervision one D.Lit. and eight Ph.D.s have already been awarded from Sambalpur University, two scholars have submitted their Ph.D. Dissertations and four are working. He has completed many research projects (Minor and Major) sponsored by different Organizations such as National Institute of Public Finance and Policy, Indian Institute of Public Administration, United Nations Development Programme, World Bank, Centre for Youth and Social development etc. He has acted as consultant to Ministry of Finance, Government of Odisha in the preparation of Draft Memorandum for presentation to the 12th and 13th Finance Commissions. He has also submitted report to the 13 th Finance Commission on the Debt Sustainability of Special Category States in India. He is continuing as a consultant to CYSD, on Public Finance Discourse and Budget Analysis. Prof. S. S. Rath was a brilliant student in his career with higher first class throughout and is the First Class First (Gold medalist) in M.A. (Economics) of his batch. He is sincere, hardworking and committed for teaching and research. He is a brilliant teacher and a very good researcher. In addition to his normal duties Prof. Rath was placed as the Registrar of Sambalpur University from March, 2009 and he managed the administration of the University also up to April 2013. 58 School of Chemistry, S.U. Nobel Prize 2014 REFERENCES AND SUPPLEMENTARY READING 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. www.nobelprize.org/nobel_prizes/peace/laureates/2013/opcw-facts.html www.nobelprize.org/nobel_prizes/medicine/laureates/2013/press.html Odia Daily The Samaja ; Sambalpur & Bhubaneswar Edition (October 2014) The New Indian Express; Chennai & Sambalpur Edition (October 2014) www.nobelprize.org/nobel_prizes/facts/economic-sciences/ www.nobelprize.org/alfred_nobel/will/will-full.html. www.nobelprize.org/nobel_prizes/facts/medicine/ www.nobelprize.org/nobel_prizes/facts/chemistry/ www.nobelprize.org/nobel_prizes/facts/literature/ The Hindu; Delhi & Chennai Edition (October 2014) www.nobelprize.org/nobel_prizes/facts/physics/ www.nobelprize.org/nobel_prizes/facts/ en.wikipedia.org/wiki/Alfred_Nobel. en.wikipedia.org/wiki/Nobel_Prize. Editor gratefully acknowledges the generous assistance and valuable information provided by the site of Wikipedia, the free Encyclopedia, Royal Swedish Academy of Sciences and the print media to compile this brochure of Nobel Prize 2014. …The difference between what we are doing and what we are capable of doing would solve most of the world s problems. Mahatma Gandhi …Beauty is truth's smile when she beholds her own face in a perfect mirror. Rabindranath Tagore …The great secret of true success, true happiness, is this: the man or woman who asks for no return, the perfectly unselfish person, is the most successful. Swami Vivekananda …Let us always meet each other with smile, for the smile is the beginning of love. Mother Teresa …Nothing in life is to be feared, it is only to be understood. Now is the time to understand more, so that we may fear less. Marie Curie …When you are courting a nice girl an hour seems like a second. When you sit on a redhot cinder a second seems like an hour. That s relativity. Albert Einstein …While ) am interested both in economics and in philosophy, the union of my interests in the two fields far exceeds their intersection. Amartya Sen 59 *****