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Fertility Rate
Explore changing patterns in fertility worldwide, from birth rates to parental ages, twinning rates, reproductive technologies, and more.
New
The latest blog posts to take off on Hacker News. 4,457 posts.
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The Multiworse Is Coming
Science News, Physics, Science, Philosophy, Philosophy of Science
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You need 16 times the sample size to estimate an interaction than a main effect
In causal inference, it is often important to study varying treatment effects: for example, a treatment could be more effective for men than for women, or for healthy than for unhealthy patients. Suppose a study is designed to have 80% power to detect a main effect at a 95% confidence level. Further suppose that…
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How to build a brain – An introduction to neurophysiology for engineers
How does the brain work? While neuroscience provides insights on small-scale processes and overall behavior, we don’t know much for sure about the learning and processing algorithms in between. In this blog post, I will give an introduction to what we know. Let’s take an engineering perspective and play evolution: How…
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Enemy within: gut bacteria drive autoimmune disease
Bacteria in the small intestines can travel to other organs and trigger an autoimmune response, though vaccines or antibiotics can suppress this reaction.
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MIT and newly formed company launch effort to build compact tokamak pilot plant
Development of fusion power, a carbon-free, combustion-free source of energy, is now on a faster track toward realization, thanks to a collaboration between MIT and a new private company, Commonwealth Fusion Systems. CFS will join with MIT to carry out rapid, staged research leading to a new generation of fusion…
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Automatic Machine Knitting of 3D Meshes
This Carnegie Mellon Textiles Lab web page is now available at https://textiles.cs.cmu.edu/publications/2018-autoknit/ .
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23andMe Granted FDA Authorization for Genetic Test on Cancer Risk
23andMe Granted First FDA Authorization for Direct-to-Consumer Genetic Test on Cancer Risk
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Income Inequality (2016)
How is inequality measured, who produces key databases, and what does the data tell us?
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What is happening in the Arctic is now beyond words, so here are the pictures
The climate emergency requires actions at emergency speed for a rapid transition to a post-carbon, safe-climate future.
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Eldar Black Holes
Isaac Asimov, in one of the anthologies he edited, mentioned reading some astronomical news back in the early 1960s about neutron stars. Being a science popularizer as well as a science fiction author, he was inspired to write a science essay about neutron stars. This was read by a few people but then more or less…
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Yann LeCun vs. Christopher Manning on Need for Priors in Deep Learning
Earlier this month, I had the exciting opportunity to moderate a discussion between Professors Yann LeCun and Christopher Manning, ti...
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Assessing Cardiovascular Risk Factors with Computer Vision
Posted by Lily Peng MD PhD, Product Manager, Google Brain Team Heart attacks, strokes and other cardiovascular (CV) diseases continue to be among ...
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The Dunedin Study Has Been Studying Aging for 45 Years
Epigenetic predictors of age, known as epigenetic clocks or biological age tests, have varying degrees of accuracy and precision. Elysium Health collaborated with Dr. Levine of Yale University to develop Index, a next-generation epigenetic clock with precision at the individual level.
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So You Think You Have a Power Law (2007)
Regular readers who care about such things — I think there are about three of you — will recall that I have long had a thing about just how unsound many of the claims for the presence of power law distributions in real data are, especially those made by theoretical physicists, who, with some honorable exceptions…
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Newly observed optical state could enable quantum computing with photons
MIT and Harvard physicists have created a new form of light that could enable quantum computing with photons.
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How Isaac Asimov shaped robotics and space exploration and predicted the Internet
Some futurists try to foresee the future. Others attempt to shape it. Yet prolific science-fiction author and biochemist Isaac Asimov did both. Asimov not
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Why Were Early Psychedelicists so Weird?
[Epistemic status: very speculative, asserted with only ~30% confidence. On the other hand, even though psychiatrists don’t really talk about this it’s possible other groups know this a…
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Nematode Neural System Uploaded to a Computer and Trained to Balance a Pole
TU Wien News. Press releases. Calendar of Events. University Gazette.
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Embryo Selection For Intelligence
A cost-benefit analysis of the marginal cost of IVF-based embryo selection for intelligence and other traits with 2016–2017 state-of-the-art.