Scientists have shown for the first time a link between two types of heart problems and one of the most commonly prescribed classes of antibiotics.

Small gestures of kindness by employers can have big impacts on employees' health and work performance, according to an international team of researchers. The team specifically examined the effects of employers enhancing the lunches of bus drivers in China with fresh fruit and found that it reduced depression among the drivers and increased their confidence in their own work performance.

Finding natural gas leaks more quickly and at lower cost could reduce methane emissions. Ten promising technologies mounted on drones, trucks and airplanes were tested last year. The results are in.

The parasite that causes Chagas disease, which had largely been thought to be asexual, has been shown to reproduce sexually after scientists uncovered clues hidden in its genomic code.

A research team has found that a compound molecule used for drug delivery of insulin could be used to treat glioblastoma, an aggressive, usually fatal form of brain cancer.

Researchers say that measuring how quickly a person's pupil dilates while they are taking cognitive tests may be a low-cost, low-invasive method to aid in screening individuals at increased genetic risk for AD before cognitive decline begins.

While every fire needs a spark to ignite and fuel to burn, it's the hot and dry conditions in the atmosphere that determine the likelihood of a fire starting, its intensity and the speed at which it spreads. Over the past several decades, as the world has increasingly warmed, so has its potential to burn.

Golf ball-size clods of weathered crude oil originating from the 2010 Deepwater Horizon catastrophe could remain buried in sandy Gulf Coast beaches for decades, according to a new study by ecologists at Florida State University.

New research reveals the mechanism that allows breastfeeding babies to absorb large amounts of calcium and build healthy bones -- a discovery that could lead to treatment for osteoporosis and other bone diseases later in life. The researchers identified calcium-absorbing channels in the lower two-thirds of the small intestines of breastfed infant mice.

Until now, there's never been a tool that could determine how long it will take a patient to heal from a tibial fracture. But researchers have found that a virtual mechanical test can do just that.

In Willapa Bay in Washington state, scientists discovered that water washing over tidal flats during high tides is largely the same water that washed over them during the previous high tide. This 'old' water has not been mixed with 'new' water and has lower levels of food for creatures in the bay. Oysters grown on flats where 'old' water stays longer showed a 25% drop in dry tissue weight per...

Scientists have provided concrete evidence linking the specific immune responses in HIV-negative babies to the HIV-positive status of their mothers.

South American rivers are home to at least three different species of electric eels, including a newly identified species capable of generating a greater electrical discharge than any other known animal, according to a new analysis of 107 fish collected in Brazil, French Guiana, Guyana and Suriname in recent years.

Researchers have discovered that seemingly identical cells can use different protein molecules to carry out the same function in an important cellular process. The scientists named this newly discovered variability 'functional mosaicism,' and it has significant implications for the development of therapeutic treatments, which are often designed to target a specific molecule, or a gene that...

By studying behavior of mice navigating a maze in near-complete darkness using infra-red cameras and deep-learning trained models, neuroscientists are able to interpret what neural signals mean to the brain with unprecedented resolution. Their first discovery, that spike trains in ON channel neurons control vision behavior in low light, threatens to overturn a decades-old assumption in...

Researchers have discovered that a cell adhesion protein, E-cadherin, allows breast cancer cells to survive as they travel through the body and form new tumors, a process termed metastasis. Their conclusions, obtained through laboratory experiments and in mouse models, help explain how metastasis works in the most common form of breast cancer, invasive ductal carcinoma. E-cadherin appears to limit...

Despite having lived about 300,000 years ago, the oldest ancestor of all members of our species had a surprisingly modern skull -- as suggested by a new model. After comparing the virtually rendered skull to five African fossil specimens contemporaneous with the first appearance of Homo sapiens, the two researchers posit that our species emerged through interbreeding of South and East African...

Bacteria in the Pacific Ocean remove large amounts of the greenhouse gas methane.

Each year more than 260,000 older Americans are hospitalized for hip fractures, a debilitating injury that can severely and permanently impact mobility. Researchers studied two types of home-based interventions and discovered that these treatments are effective in helping individuals regain their ability to walk, but not enough to do every day functions like crossing the street.

Researchers have shown for the first time that salamanders inhabiting the Southern Appalachian Mountains use temperature rather than humidity as the best cue to anticipate changes in their environment. Significantly, they observed that these salamanders actually harness their unique ability to regenerate limbs to rapidly minimize the impact of hot temperatures. The findings may have implications...

A mathematical model shows how bias distorts results when measuring bacterial communities through metagenomic sequencing. The proof-of-concept model could be the first step toward developing calibration methods that could make metagenomic measurements more accurate.

Tiny extracts of a precious metal used widely in industry could play a vital role in new cancer therapies.

Organic semiconductors have advantages over inorganic semiconductors in several areas. However, there are only a few known organic n-type semiconductors, and even they have certain drawbacks such as instability and insolubility in organic solvents. Now, scientists report on the production of a novel organic substance with potential applications as an n-type semiconductor.

Lakes of liquid methane on the surface of Titan, Saturn's largest moon, were likely formed by explosive, pressurized nitrogen just under the moon's surface, according to new research.