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Genes inherited from Denisovans, extinct human relatives, may help Papua New Guineans in the lowlands fight off infection, while mutations to red blood cells may help highlanders live at altitude.

Some people, like Sam Harris, say that science has values of its own. According to him, even a statement like “Water is two parts hydrogen and one part oxygen” is value-laden. But I don’t think that it is value-laden, it is simply a factual statement. Perhaps demonstrating that statement to be true requires values, but that statement by itself is true whatever your values are. So, then, what have professional philosophers (besides Sam Harris) written or said about this matter, of whether science is value-free, and also whether even basic scientific statements are value-free?

For our final feature celebrating Women’s History Month, we interviewed Chiara Bartolozzi, a senior researcher moving the needle in neuromorphic engineering.

Every year for Women’s History Month, All About Circuits spotlights the contributions of distinguished women engineers worldwide. For this article, we interviewed Chiara Bartolozzi, a senior researcher and neuromorphic chip expert at the Italian Institute of Technology (IIT).

Since earning a degree in engineering from the University of Genova and a Ph.D. in neuroinformatics from ETH Zurich, Bartolozzi has led important research in neuromorphic engineering. She also helped design iCub, a toddler-sized humanoid robot developed at IIT that serves as a robotics testbed worldwide.

Researchers have made a digital map showing a tiny chunk of a human brain in unprecedented detail.

Based on a brain tissue sample that had been surgically removed from a person, the map represents a cubic millimeter of brain—an area about half the size of a grain of rice. But even that tiny segment is overflowing with 1.4 million gigabytes of information—containing about 57,000 cells, 230 millimeters of blood vessels and 150 million synapses, the connections between neurons.

The researchers published their findings in the journal Science on Friday. They have made the data set freely available online and provided tools for analyzing and proofreading it.