Science & Technology

Magnetite, a particle found in air pollution, can induce signs and symptoms of Alzheimer’s disease, new research suggests.

Bile acids long have been known to play a role in human metabolism. Synthesized from cholesterol in the liver, bile acids are involved in digestive processes, particularly in absorbing fat. They also are modified extensively by bacteria, which greatly …

Every year, millions of older Americans spend money and time to try to look younger than they are. They color graying hair, buy anti-balding products, use teeth whiteners and wrinkle fillers, and much more. Now, a new study looks at what this kind of e…

Massive volcanic events in Earth’s history that released large amounts of carbon into the atmosphere frequently correlate with periods of severe environmental change and mass extinctions. A new method to estimate how much and how rapidly carbon was rel…

Neuroscientists say they have found a new function for the SYNGAP1 gene, a DNA sequence that controls memory and learning in mammals, including mice and humans.

Climate change is disrupting the seasonal flow of rivers in the far northern latitudes of America, Russia and Europe and is posing a threat to water security and ecosystems, according to new research.

Energy systems essential to supporting our everyday activities face increasing threats from wars, pandemics, climate change, and other unexpected events. An international team of researchers found that demand-oriented solutions have a significantly gre…

Spring frosts can have devastating effects on apple production, and a warming climate may be causing trees to blossom early, making them more susceptible to the damaging effects of extreme cold events. Growers’ attempts to prevent the flowers from free…

Researchers have characterized, in exacting detail, the rapid series of events that transform a single fertilized cell into a living, complex being. The work not only has enabled the team to explore which genes drive the differentiation of hundreds of …

Leafy green vegetables are important sources of dietary fiber and nutrients, but they can harbor harmful pathogens. In particular, lettuce has often been involved in outbreaks of foodborne illness across the U.S. A new study examines factors that affec…

Language-processing difficulties are more of an indicator than memory loss of amnestic mild cognitive impairment (aMCI), a risk factor for dementia due to Alzheimer’s disease, according to a new study.