Saturday, February 11, 2017

Spanish women in science.



"There were women among the beneficiaries of the Board's programs. Thus, in the most important research center of Spain at that time, "Rockefeller", which took the name of the Foundation that had financed its construction, there were 36 women out of a total of 158 researchers, who constituted a brilliant germ of the feminine presence in Spanish science. Unfortunately their careers were truncated with the Spanish civil war (1936-1939). Their stories will begin to be known thanks to the work that Carmen Magallón Portolés initiated with her work Spanish Women Pioneers of the sciences, published in 1999."   (Free translation from article)

http://elpais.com/elpais/2017/02/10/ciencia/1486724300_968930.html?id_externo_rsoc=FB_CChttp://elpais.com/elpais/2017/02/10/ciencia/1486724300_968930.html?id_externo_rsoc=FB_CC

Thursday, February 2, 2017

Uta Frith discoveries on autism and dyslexia





"No matter what the IQ of a person with autism – and the spectrum is huge – some degree of social impairment is universal. "The brain is not like a pudding; it is more like an exquisite, traditional engine." People with autism who lack theory of mind are missing the "tiny gadget in the big engine that allows us effortlessly to take into account what another person wishes, believes and thinks".

Theory of mind:  the intuition about what is going on in another person's head.

But she had never been happy with the lack-of-bonding thesis. The counter-proposal, that autism was organic – nature, not nurture – was a dramatic reversal. (Comparably, she would later destigmatise dyslexia, showing it to be separate from environment and intelligence; her work on reading development and spelling has been highly influential.)

Frith talks enthusiastically about advances in neuroscience and what technology has made possible. "We can make things visible with unbelievable precision and look inside neurons to see how information travels. But what I am looking for is macroscopic – the mind." About the autistic mind, she remains "intrigued and mystified as ever I was". But she is nothing if not optimistic. Will we ever understand how the brain works? "Yes," she answers decisively, "by the end of this century."

Extracted from:  

https://www.theguardian.com/science/2013/feb/24/uta-frith-autism-neuroscience-rational

https://www.theguardian.com/science/audio/2017/feb/01/cross-section-uta-frith-science-weekly-podcast

Maryam Mirzakhani, professor of mathematics at Stanford University. She was the first woman to win the Fields Medal, most prestigious prize in Math.



https://www.theguardian.com/science/2014/aug/13/interview-maryam-mirzakhani-fields-medal-winner-mathematician

Monday, September 26, 2016

Black women scientists: Katherine Johnson



"In an age of racism and sexism, Katherine Johnson broke both barriers at NASA. She calculated the trajectory of man’s first trip to the moon, and was such an accurate mathematician that John Glenn asked her to double-check NASA’s computers. To top it off, she did it all as a black woman in the 1950s and ’60s, when women at NASA were not even invited to meetings. And you’ve probably never heard of her."




Trailer of Hidden Figures film:
https://www.youtube.com/watch?v=RK8xHq6dfAo


Sunday, September 4, 2016

Gravity: From Aristotle to Einstein, by Erik Gregersen



"This view of why objects fall reigned until the scientific revolution that began in the Renaissance. “Standing on the shoulders of giants” like Kepler and Galileo, Isaac Newton realized that the apple falling to the ground and the Moon orbiting Earth were subject to the same gravitational force. The force was proportional to the mass of the two bodies attracting each other and inversely proportional to the square of the distance between them. (That is, when two bodies are twice as far apart as they were before, the gravitational attraction is 1/[2×2], or ¼ as strong.) The force operated between everything in the universe and explained the motions of the Moon and the planets very well.

Well, almost. Newtonian gravity had its triumphs. It was used to predict the location of the then unknown planet Neptune. However, for Mercury, the closest planet to the Sun, Newton’s law was not quite as accurate in predicting the location of the planet’s perihelion (the point in its orbit where it is the closest to the Sun) as it was for the others. This point seemed to move about the Sun, and the motion vexed astronomers until Einstein introduced his theory of general relativity in 1915, in which gravity is not a force reaching out across the universe but is a bending of space-time around a massive object. The orbits of the planets and the apples falling to the ground follow the shape of space-time."

https://www.britannica.com/story/gravity-from-apples-to-the-universe

Wednesday, May 25, 2016

Gertrude Belle Elion (1918-1999)



 The Nobel Prize in Physiology or Medicine 1988
Sir James W. Black, Gertrude B. Elion, George H. Hitchings



Gertrude Belle Elion (1918-1999) American biochemist and pharmacologist who played a key role in developing the AIDS drug AZT, receiving the Nobel Prize in Medicine in 1988 together with two other researchers. She was the first woman to be inducted into the National Inventors Hall of Fame.




This was her Nobel lecture:

https://www.nobelprize.org/nobel_prizes/medicine/laureates/1988/elion-lecture.html

Friday, May 20, 2016

The human brain does not work as a computer


"The landmark event that launched what is now broadly called ‘cognitive science’ was the publication of Language and Communication (1951) by the psychologist George Miller. Miller proposed that the mental world could be studied rigorously using concepts from information theory, computation and linguistics.
This kind of thinking was taken to its ultimate expression in the short book The Computer and the Brain (1958), in which the mathematician John von Neumann stated flatly that the function of the human nervous system is ‘prima facie digital’. Although he acknowledged that little was actually known about the role the brain played in human reasoning and memory, he drew parallel after parallel between the components of the computing machines of the day and the components of the human brain.
Propelled by subsequent advances in both computer technology and brain research, an ambitious multidisciplinary effort to understand human intelligence gradually developed, firmly rooted in the idea that humans are, like computers, information processors. This effort now involves thousands of researchers, consumes billions of dollars in funding, and has generated a vast literature consisting of both technical and mainstream articles and books. Ray Kurzweil’s book How to Create a Mind: The Secret of Human Thought Revealed (2013), exemplifies this perspective, speculating about the ‘algorithms’ of the brain, how the brain ‘processes data’, and even how it superficially resembles integrated circuits in its structure.
The information processing (IP) metaphor of human intelligence now dominates human thinking, both on the street and in the sciences. There is virtually no form of discourse about intelligent human behaviour that proceeds without employing this metaphor, just as no form of discourse about intelligent human behaviour could proceed in certain eras and cultures without reference to a spirit or deity. The validity of the IP metaphor in today’s world is generally assumed without question.
But the IP metaphor is, after all, just another metaphor – a story we tell to make sense of something we don’t actually understand. And like all the metaphors that preceded it, it will certainly be cast aside at some point – either replaced by another metaphor or, in the end, replaced by actual knowledge."