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Nicotinamide riboside effects on aging similar to caloric restriction
Nicotinomide riboside (NR) mimics caloric restriction, kick-starting the same pathways responsible for reducing cardiovascular aging.
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The latest blog posts to take off on Hacker News. 248 posts.
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Poor Grades Tied to Class Times That Don’t Match Our Biological Clocks
Schedules of night owls, morning larks and daytime finches may predict their educational outcomes
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Supertasks
Background Reading: Earman and Norton, Infinite Pains: The Trouble with Supertasks and Comments on Laraudogoita's Supertask
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Hubble finds first galaxy in the local universe without dark matter
An international team of researchers using the NASA/ESA Hubble Space Telescope and several other observatories have, for the first time, uncovered a galaxy in our cosmic neighbourhood that is missing most — if not all — of its dark matter. This discovery of the galaxy NGC 1052-DF2 challenges currently-accepted…
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Gravitational attraction of stars and cows
One attempt at rationalizing astrology is to say that the gravitational effects of celestial bodies impact our bodies. To get an idea how hard the stars and planets pull on us, let's compare their gravitational attraction to that of cows at various distances. Newton's law of gravity says that the gravitational…
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Applied Category Theory
It just became a lot easier to learn about applied category theory, thanks to this free book: • Brendan Fong and David Spivak, Seven Sketches in Compositionality: An Invitation to Applied Cate…
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In field tests, device harvests water from desert air
You really can extract clean drinking water right from the air, even in the driest of deserts, MIT researchers have found. They’ve demonstrated a real-world version of a water-harvesting system based on metal organic frameworks, or MOFs, that they first described last year.
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Hennessy and Patterson win Turing Award
Hennessy and Patterson pioneered a systematic, quantitative approach to the design and evaluation of computer architectures that has had enduring impact on the microprocessor industry. Their reduced instruction set computer (RISC) approach has led to lasting and repeatable principles that generations of architects…
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Death of the sampling theorem?
tl;dr: A team from Columbia University led by Ken Shepard and Rafa Yuste claims to beat the 100 year old Sampling Theorem [1,2]. Apparently anti-aliasing filters are superfluous now because one can…
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Breaking a Wine Glass in Python by Detecting the Resonant Frequency
Detecting the Resonant Frequency of an Object with
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Fertility Rate
Explore changing patterns in fertility worldwide, from birth rates to parental ages, twinning rates, reproductive technologies, and more.
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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 ...