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SEDE BOQER, Israel - Dec. 16, 2015 - Researchers at the Zuckerberg Institute for Water Research at Ben-Gurion University of the Negev have determined that treated greywater is safe for irrigation and does not pose a risk for gastrointestinal illness or water-related diseases.

The study, published in the online journal Science of the Total Environment (Elsevier), determined that there was no additional incidence of gastroenteritis or water-related diseases caused by use of treated greywater in gardens, even when compared to tap water and other irrigation water sources.

WORCESTER, MA -- Researchers at the University of Massachusetts Medical School have identified a new life cycle stage in HIV infection, thanks to a novel technique they developed to take images of intact infected cells. They've shown that this phase of infection, dubbed intra-nuclear migration, by principal investigator Abraham L. Brass, MD, PhD, relies on the human protein CPSF6 to guide the virus through the host cell's nucleus and position it at active genes where it prefers to make its home.

Many people compost their food scraps and yard waste because they think it's the right thing to do.

A new University of Washington study confirms that sentiment, and also calculates the environmental benefits associated with keeping these organic materials out of landfills.

The biggest takeaway for residents of Seattle, San Francisco and other places that offer curbside compost pickup is to take advantage of that service -- and pat yourself on the back for using it.

Waiting 30 seconds in between bites of food allows children to realize they're no longer hungry before they overeat--preventing excessive weight gain. That's the conclusion of a study published in the Dec. 15 issue of the journal Pediatric Obesity by an international team of researchers, including bioengineers at the University of California, San Diego.

TRACING MELTING ICE. For the very first time, climate researchers from the Centre for GeoGenetics at the Natural History Museum of Denmark, together with a national and an International team of researchers, publish in the scientific journal Nature their direct observations of the reduction and melting of the Greenland Ice Sheet during the latest 110 years. All previous estimations have been based on computer models, which although valuable do not provide the same level of insight as direct observations.

When overactive or off target, certain cells in the immune system that normally fight infection instead attack a person's own tissue. This process fuels inflammation as part of autoimmune diseases. Now, a study from researchers at NYU Langone Medical Center publishing on December 16 in Nature has revealed a new way to curtail these mechanisms that could shape the design of future drugs.

MADISON, Wis. - A study published today finds a surprising and very recent shift away from the steady relationship among species that prevailed for more than 300 million years.

New Haven, Conn. - A Yale-led study urges scientists to move their focus from species extinction to species rarity in order to recognize, and avoid, a mass extinction in the modern world.

The discovery of exceptionally well-preserved, tiny fossil seeds dating back to the Early Cretaceous corroborates that flowering plants were small opportunistic colonizers at that time, according to a new Yale-led study.

The potential of modular design for brand new proteins that do not exist in the natural world is explored Dec. 16 in the journal Nature. The reports are the latest in a recent series of developments toward custom-designing proteins.

Naturally occurring proteins are the nanoscale machines that carry out nearly all the essential functions in living things.

DALLAS, December 16, 2015 - One of every three deaths in the U.S. in 2013 were from heart disease, stroke and other cardiovascular diseases, while heart disease and stroke were the No. 1 and No. 2 killers worldwide, according to American Heart Association's 2016 Heart Disease and Stroke Statistics Update.

Produced since 1958, the update is created from the most-recent data available and compiled by the AHA, the National Institutes of Health, the Centers for Disease Control and Prevention and other government sources.

The first clinically-relevant mouse model of human breast cancer to successfully express functional estrogen receptor positive (ER+) adenocarcinomas has been developed by researchers at Lawrence Berkeley National Laboratory (Berkeley Lab). The tumors generated in this system bear a striking resemblance to the class of tumors found in the vast majority of women with breast cancer, and especially to those whose cancer proves treatment-resistant.

Commonly known as fishing snakes, the Synophis genus has been expanded with as many as three new species following a research in the Andean cloud forests of Amazonian Ecuador and Peru. Not only is the discovery remarkable due to the rarity of new snake species being discovered, but also because this is the first time this mysterious and already eight-member genus is recorded from Peru. The study is published in the open-access journal ZooKeys.

Bethesda, MD (Dec. 16, 2015) -- Clinical practice guidelines are critical to reducing physician variation and providing high-quality patient care.

In 2015, the American Gastroenterological Association (AGA) issued six clinical practice guidelines, all published in AGA's official journal Gastroenterology, offering current, evidence-based point-of-care recommendations to guide physicians at the bedside.

HANOVER, N.H. - Dartmouth scientists have shown for the first time how winds blowing across lakes affect the chemical makeup of water vapor above and evaporated from lakes, which may aid research into past and present water cycles under changing climate.