منابع مشابه
QnAs with Neil Shubin.
From the rust-brown sediments of long-dried streams that once rumbled through the rugged terrain of Canada’s Ellesmere Island, a team of paleontologists unearthed in 2004 fossils of a 375 million-year-old species of fish that may have nearly crossed an evolutionary Rubicon. Named Tiktaalik roseae, the nowextinct animal has come to represent an intermediate link between fish and amphibians, its ...
متن کاملQnAs with Angel Rubio.
Just as physics requires a different set of tools to explore phenomena at the quantum scale, chemistry requires a quantum paradigm. At the macroscale, the interaction of light with chemical entities can be observed in processes such as photosynthesis. But the actual interaction between photons and other matter occurs in the realm of quantum chemistry. National Academy of Sciences member and phy...
متن کاملQnAs with Daniel Schacter.
Since time immemorial, the fallibility of human memory has fascinated intellectuals in many fields of human endeavor. In his book The Seven Sins of Human Memory, a popular tome of scholarly work aimed at a general audience, Harvard University psychologist Daniel Schacter, a recently elected member of the National Academy of Sciences, described the vagaries of memory, including, by turns, its pi...
متن کاملQnAs with Liqun Luo.
To make us who we are, each of around 86 billion neurons has to find and connect with thousands of other neurons, forming the dense and complex network of the human brain. How is the precision of neuronal wiring achieved? Liqun Luo, a neurobiologist at Stanford University, investigates this question. Luo, who was elected to the National Academy of Sciences in 2012, uses the olfactory system of ...
متن کاملQnAs with Gregg Semenza.
In organisms that depend on oxygen, the element helps generate ATP, the cellular energy currency, and sustain cellular functions. But researchers have struggled to understand how organisms cope with shifts in oxygen availability. National Academy of Sciences member Gregg Semenza, a biochemist at the Johns Hopkins University School of Medicine, studies how cells sense and react to different oxyg...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2014
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.1321499110