Nobel Prize (Awards) Winners 2021

Nobel Prize in Physiology or Medicine 2021

The Nobel Prize in Physiology or Medicine 2021 was awarded jointly to David Julius(Affiliation at the time of the award: University of California, San Francisco, CA, US) and Ardem Patapoutian(Affiliation at the time of the award: Howard Hughes Medical Institute, Scripps Research, La Jolla, CA, USA) for their discoveries of receptors for temperature and touch. David Julius utilized capsaicin, a pungent compound from chili peppers that induces a burning sensation, to identify a sensor in the nerve endings of the skin that responds to heat. Ardem Patapoutian used pressure-sensitive cells to discover a novel class of sensors that respond to mechanical stimuli in the skin and internal organs. These breakthrough discoveries launched intense research activities leading to a rapid increase in our understanding of how our nervous system senses heat, cold, and mechanical stimuli. The laureates identified critical missing links in our understanding of the complex interplay between our senses and the environment.

Nobel Prize in Physics 2021

The Nobel Prize in Physics 2021 was awarded for groundbreaking contributions to our understanding of complex systems with one half jointly to Syukuro Manabe (Princeton University, USA) and Klaus Hasselmann (Max Planck Institute for Meteorology, Hamburg, Germany) for the physical modeling of Earth's climate, quantifying variability and reliably predicting global warming and the other half to Giorgio Parisi (Sapienza University of Rome, Italy) for the discovery of the interplay of disorder and fluctuations in physical systems from atomic to planetary scales.

One complex system of vital importance to humankind is Earth’s climate. Syukuro Manabe demonstrated how increased levels of carbon dioxide in the atmosphere lead to increased temperatures at the surface of the Earth. In the 1960s, he led the development of physical models of the Earth’s climate and was the first person to explore the interaction between radiation balance and the vertical transport of air masses. His work laid the foundation for the development of current climate models.

About ten years later, Klaus Hasselmann created a model that links together weather and climate, thus answering the question of why climate models can be reliable despite weather being changeable and chaotic. He also developed methods for identifying specific signals, fingerprints, that both natural phenomena and human activities imprint in the climate. His methods have been used to prove that the increased temperature in the atmosphere is due to human emissions of carbon dioxide.

Around 1980, Giorgio Parisi discovered hidden patterns in disordered complex materials. His discoveries are among the most important contributions to the theory of complex systems. They make it possible to understand and describe many different and apparently entirely random materials and phenomena, not only in physics but also in other, very different areas, such as mathematics, biology, neuroscience, and machine learning.

The Nobel Prize in Chemistry 2021

Catalysts are thus fundamental tools for chemists, but researchers long believed that there were, in principle, just two types of catalysts available: metals and enzymes. Benjamin List and David MacMillan are awarded the Nobel Prize in Chemistry 2021 because in 2000 they, independent of each other, developed a third type of catalysis. It is called asymmetric organocatalysis and builds upon small organic molecules.

The rapid expansion in the use of organic catalysts is primarily due to their ability to drive asymmetric catalysis. When molecules are being built, situations often occur where two different molecules can form, which - just like our hands - are each other’s mirror image. Chemists will often only want one of these, particularly when producing pharmaceuticals.

Organocatalysis has developed at an astounding speed since 2000. Benjamin List(Max-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany) and David MacMillan (Princeton University, USA) remain leaders in the field and have shown that organic catalysts can be used to drive multitudes of chemical reactions. Using these reactions, researchers can now more efficiently construct anything from new pharmaceuticals to molecules that can capture light in solar cells. In this way, organocatalysts are bringing the greatest benefit to humankind.

The Nobel Prize in Literature 2021

The Nobel Prize in Literature for 2021 is awarded to the novelist Abdulrazak Gurnahfor his uncompromising and compassionate penetration of the effects of colonialism and the fate of the refugee in the gulf between cultures and continents”.

Gurnah was born in 1948 and grew up on the island of Zanzibar in the Indian Ocean but arrived in England as a refugee at the end of the 1960s. He has published ten novels and a number of short stories. The theme of the refugee’s disruption runs throughout his work.

The Nobel Peace Prize 2021

The Norwegian Nobel Committee has decided to award the Nobel Peace Prize for 2021 to Maria Ressa and Dmitry Muratov for their efforts to safeguard freedom of expression, which is a precondition for democracy and lasting peace. Ms. Ressa and Mr. Muratov are receiving the Peace Prize for their courageous fight for freedom of expression in the Philippines and Russia. At the same time, they are representatives of all journalists who stand up for this ideal in a world in which democracy and freedom of the press face increasingly adverse conditions.

Maria Ressa uses freedom of expression to expose abuse of power, use of violence, and growing authoritarianism in her native country, the Philippines. In 2012, she co-founded Rappler, a digital media company for investigative journalism, which she still heads. As a journalist and the Rappler’s CEO, Ressa has shown herself to be a fearless defender of freedom of expression. Rappler has focused critical attention on the Duterte regime’s controversial, murderous anti-drug campaign. The number of deaths is so high that the campaign resembles a war waged against the country’s own population. Ms. Ressa and Rappler have also documented how social media is being used to spread fake news, harass opponents and manipulate public discourse.

Dmitry Andreyevich Muratov has for decades defended freedom of speech in Russia under increasingly challenging conditions. In 1993, he was one of the founders of the independent newspaper Novaja Gazeta. Since 1995 he has been the newspaper’s editor-in-chief for a total of 24 years. Novaja Gazeta is the most independent newspaper in Russia today, with a fundamentally critical attitude towards power. The newspaper’s fact-based journalism and professional integrity have made it an important source of information on censurable aspects of Russian society rarely mentioned by other media. Since its start-up in 1993, Novaja Gazeta has published critical articles on subjects ranging from corruption, police violence, unlawful arrests, electoral fraud, and "troll factories” to the use of Russian military forces both within and outside Russia.

The Prize in Economic Sciences 2021

The Royal Swedish Academy of Sciences has decided to award the Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel 2021 with one half to David Card (University of California, Berkeley, USA) for his empirical contributions to labour economics and the other half jointly to Joshua D. Angrist(Massachusetts Institute of Technology, Cambridge, USA), and Guido W. Imbens(Stanford University, USA) for their methodological contributions to the analysis of causal relationships

Using natural experiments, David Card has analysed the labour market effects of minimum wages, immigration, and education. His studies from the early 1990s challenged conventional wisdom, leading to new analyses and additional insights. The results showed, among other things, that increasing the minimum wage does not necessarily lead to fewer jobs. We now know that the incomes of people who were born in a country can benefit from new immigration, while people who immigrated at an earlier time risk being negatively affected. We have also realised that resources in schools are far more important for students’ future labour market success than was previously thought.

Data from a natural experiment are difficult to interpret, however. For example, extending compulsory education by a year for one group of students (but not another) will not affect everyone in that group in the same way. Some students would have kept studying anyway and, for them, the value of education is often not representative of the entire group. So, is it even possible to draw any conclusions about the effect of an extra year in school? In the mid-1990s, Joshua Angrist and Guido Imbens solved this methodological problem, demonstrating how precise conclusions about cause and effect can be drawn from natural experiments.

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