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We Need To Reinvent Primary Care

Politicians are arguing with each other about health care. One side is yelling that people have...

Cystic Fibrosis And The Mechanism Of Mucus

People with cystic fibrosis suffer repeated lung infections because their airway mucus is too thick...

Are Federal Nutrition Guidelines Realistic? Only Rich Pregnant Women Can Meet Them

The numerous nutrition guidelines promoted by the U.S. federal government are obeyed by just 2...

Like Your Nose? Thank Climate Changes

A new paper claims the size and shape of your nose evolved in response to local climate conditions...

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ECHA, the European Chemicals Agency, has released findings from its Committee for Risk Assessment (RAC) which concluded that glyphosate (e.g. Roundup, by the agriculture company Monsanto, though it's been off-patent for 17 years) is not a carcinogen, nor is it a mutagen, nor is it toxic for reproduction.
By using lasers to manipulate a superfluid gas known as a Bose-Einstein condensate, the team was able to coax the condensate into a quantum phase of matter that has a rigid structure — like a solid, and can flow without viscosity, a key characteristic of a superfluid.  Basically, they have created a supersolid, a new form of matter which combines the properties of solids with those of superfluids. 

Isn't that a contradiction? 

“It is counterintuitive to have a material which combines superfluidity and solidity,” says team leader Wolfgang Ketterle, the John D. MacArthur Professor of Physics at MIT. “If your coffee was superfluid and you stirred it, it would continue to spin around forever.”
Metabolism, the set of processes through which we gain energy from food and produce the biomolecules we need in our body's cells, is universal to life. The biochemical pathways that underpin these processes are highly similar across all organisms and species. 
To the outside world, muscles look like they contract or do work but at the very small scale it is
myosin molecules pulling actin filaments and myosin and actin are essentially nanomachines that convert the chemical energy of ATP hydrolysis - how cells in our muscles create energy - into mechanical work.

New electron cryomicroscopy images reveal unexpectedly large conformational changes in the myosin molecule during the pull and that may show how myosin generates force and create a paradigm for the construction of true nanomachines.

As anti-smoking groups like the American Council on Science and Health have long contended, while nicotine may be addictive, so are lots of things, from video games to coffee. It's the toxins in cigarette smoke that will kill you.

For that reason, public-health oriented anti-smoking groups have embraced nicotine vaping devices ("e-cigarettes") as one tool in the tool chest of harm reduction and (preferably) smoking cessation. Yet some smoking groups, and even the U.S. Centers for Disease Control and Prevention, have migrated from being a war on cigarettes to being in war on some tobacco products, including nicotine vapor yet, oddly, not nicotine gums and patches.

The manufacture of cement, bricks, bathroom tiles and porcelain crockery normally requires a great deal of heat: a kiln is used to fire the ceramic materials at temperatures well in excess of 1,000°C. Now, material scientists from ETH Zurich have developed what seems at first glance to be an astonishingly simple method of manufacture that works at room temperature. The scientists used a calcium carbonate nanopowder as the starting material and instead of firing it, they added a small amount of water and then compacted it.