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SCIENCE

Marijuana found in breast milk up to six days after use

With the legalization of marijuana in several states, increased use for both medicinal and recreational purposes has been documented in pregnant and breastfeeding women. Although national organizations like the American Academy of Pediatrics recommend that breastfeeding mothers do not use marijuana, there has been a lack of specific data to ... Read More »

In the race of life, the tortoise beats the hare every time

Over the long-run, the race will indeed go to the slower, steadier animal. “The fable of ‘The Tortoise and the Hare’ is a metaphor about life, not a story about a race,” said Adrian Bejan, the J.A. Jones Professor of Mechanical Engineering at Duke University. “We see in animal life ... Read More »

One in 3 US veteran firearm owners keeps a gun loaded and unlocked

One third of United States Armed Forces Veterans store at least one firearm loaded with ammunition and unlocked, according to a new study published in the American Journal of Preventive Medicine that reports on the first survey of a nationally representative sample of this group regarding storage practices. Unsafe firearm ... Read More »

Nanotubes change the shape of water

First, according to Rice University engineers, get a nanotube hole. Then insert water. If the nanotube is just the right width, the water molecules will align into a square rod. Rice materials scientist Rouzbeh Shahsavari and his team used molecular models to demonstrate their theory that weak van der Waals ... Read More »

Self-healing reverse filter opens the door for many novel applications

A self-healing membrane that acts as a reverse filter, blocking small particles and letting large ones through, is the “straight out of science fiction” work of a team of Penn State mechanical engineers. “Conventional filters, like those used to make coffee, allow small objects to pass through while keeping larger ... Read More »

Shape-shifting material can morph, reverse itself using heat, light

A new material developed by University of Colorado Boulder engineers can transform into complex, pre-programmed shapes via light and temperature stimuli, allowing a literal square peg to morph and fit into a round hole before fully reverting to its original form. The controllable shape-shifting material, described today in the journal ... Read More »

Mutations in this molecule may have helped mammoths tolerate the cold

Columbia University biomedical researchers have captured close-up views of TRPV3, a skin-cell ion channel that plays important roles in sensing temperature, itch, and pain. In humans, defects in the protein can lead to skin diseases such as atopic dermatitis (a type of eczema), vitiligo (uneven skin coloration), skin cancer, and ... Read More »

No safe level of alcohol, new study concludes

A new scientific study concludes there is no safe level of drinking alcohol. The study, published today in the international medical journal The Lancet, shows that in 2016, nearly 3 million deaths globally were attributed to alcohol use, including 12 percent of deaths in males between the ages of 15 ... Read More »

Sweeter dreams in a peaceful mind

It has long been assumed that the content of dreams can tell us something about the person’s well-being. However, so far dream researchers have mostly studied the dreams of people suffering from various disorders and we know very little about the positive side of well-being: do happier people have happier ... Read More »

Tracking the evolution and transmission of yellow fever

A pioneering Oxford University research collaboration into yellow fever virus (YFV) has shed new light on the exceptional recent outbreak in Brazil and how the virus spreads. The findings have implications for monitoring viral transmission and could potentially contribute to a strategy for eliminating YFV worldwide. Published in Science, the ... Read More »

Evidence of matter-matter coupling

After their recent pioneering experiments to couple light and matter to an extreme degree, Rice University scientists decided to look for a similar effect in matter alone. They didn’t expect to find it so soon. Rice physicist Junichiro Kono, graduate student Xinwei Li and their international colleagues have discovered the ... Read More »

Novel process to 3-D print interconnected layers of 2-D graphene

Researchers from Virginia Tech and Lawrence Livermore National Laboratory have developed a novel way to 3D print complex objects of one of the highest-performing materials used in the battery and aerospace industries. Previously, researchers could only print this material, known as graphene, in 2D sheets or basic structures. But Virginia ... Read More »

How sleep loss may contribute to adverse weight gain

In a new study, researchers at Uppsala University now demonstrate that one night of sleep loss has a tissue-specific impact on the regulation of gene expression and metabolism in humans. This may explain how shift work and chronic sleep loss impairs our metabolism and adversely affects our body composition. The ... Read More »

Bird feared extinct rediscovered in the Bahamas

One of the rarest birds in the western hemisphere, the Bahama Nuthatch, has been rediscovered by research teams searching the island of Grand Bahama. The finding is particularly significant because the species had been feared extinct following the catastrophic damage caused by Hurricane Matthew in 2016, and had not been ... Read More »

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