Gut bacteria key to the vampire bat’s ability to survive on blood

Only three mammalian species are sanguivorous—that’s blood feeding—and they are all bats. Blood, apparently, is not that nutritious. It has almost no carbs, fats, or vitamins; its high iron levels can disrupt heart, liver, and pancreas function; its obscenely high protein and salt levels can cause renal disease if nitrogenous waste products build up. It […]

Machine Learning Crash Course

How does machine learning differ from traditional programming?What is loss, and how do I measure it?How does gradient descent work?How do I determine whether my model is effective?How do I represent my data so that a program can learn from it?How do I build a deep neural network? Source: google

Long Term Depression Permanently Changes the Brain

New brain imaging research from the Centre for Addiction and Mental Health (CAMH) shows that the brain alters after years of persistent depression, suggesting the need to change how we think about depression as it progresses. Source: medicalxpress

Captain Obvious Finally Arrives: Ride-sharing Actually Causes Congestion

A recurring theme among ride-hailing executives from the likes of Lyft and Uber is that their platforms will help reduce congestion in the world’s most populous cities. However, anyone actually living in these places will tell you it doesn’t appear to be working. Cities like New York were already clogged with taxi cabs but, instead […]

James Webb Telescope sun shield snags, further launch delays likely

A new report on the James Webb Space Telescope has found that ongoing technical issues with final testing and assembly of the $8.8 billion project will probably cause the launch date of the oft-delayed instrument to slip again to the right. Presently, NASA is targeting June 2019 for launch aboard an Ariane 5 rocket. Source: […]

Toyota’s new magnet won’t depend on some key rare-earth minerals

The new magnet Toyota developed also uses no terbium or dysprosium, which can be added to neodymium to improve its operability at high heat, above 100 degrees Celsius (212 degrees Fahrenheit). (In fact, mining consultancy Roskill notes that few automakers use terbium in magnets anymore, though dysprosium is still commonly added to magnets with neodymium.) Source: […]

Probabilistic Programming and Bayesian Methods for Hackers

Bayesian Methods for Hackers is designed as a introduction to Bayesian inference from a computational/understanding-first, and mathematics-second, point of view. Of course as an introductory book, we can only leave it at that: an introductory book. For the mathematically trained, they may cure the curiosity this text generates with other texts designed with mathematical analysis […]