Tumors that originate in other organs of the body and spread to the brain are known as metastatic brain tumors. According to the American Brain Tumor Association, this tumor type is the most common in adults, affecting as many as 300,000 people each year. Researchers compared two common postsurgical therapies for metastatic brain tumors and found that stereotactic radiosurgery can provide better outcomes for patients compared to whole-brain radiation.
When is an internal combustion engine not an internal combustion engine? When it's been transformed into a modular reforming reactor that could make hydrogen available to power fuel cells wherever there's a natural gas supply available.
Linguistic anthropologists are applying the latest technology to an ancient mystery: how and when early humans inhabited the New World. Their new research suggests complex patterns of contact and migration among the early peoples who first settled the Americas.
A new innovation could make printing solar cells as easy and inexpensive as printing a newspaper. Researchers have cleared a critical manufacturing hurdle in the development of a relatively new class of solar devices called perovskite solar cells. This alternative solar technology could lead to low-cost, printable solar panels capable of turning nearly any surface into a power generator.
Numerous human diseases, including inflammatory bowel disease, diabetes and autism spectrum disorders are linked to abnormal gut microbiomes, but an open question is whether these altered microbiomes are drivers of disease. A new study took aim at that question with experiments in zebrafish to dissect whether changes in the abundance of certain gut bacteria can cause intestinal inflammation.
Seagrass meadows -- bountiful underwater gardens that nestle close to shore and are the most common coastal ecosystem on Earth -- can reduce bacterial exposure for corals, other sea creatures and humans, according to new research.
In a crowded marketplace of products advertised to repel mosquitoes, consumers are wise to trust spray-on repellents containing DEET or PMD, say researchers. In a comparison study of several mosquito-repellent products, 'wearable' devices such as bracelets or sonic repellers were found to be largely ineffective in repelling Aedes aegypti mosquitoes.
Seeing is not always believing -- visual speech (mouth movements) mismatched with auditory speech (sounds) can result in the perception of an entirely different message. This mysterious illusion is known as the McGurk effect. Neuroscience researchers have created an algorithm to reveal key insight into why the brain can sometimes muddle up one of the most fundamental aspects of the human experience.
The global proliferation of overweight and obese people and people with type 2 diabetes is often associated with the consumption of saturated fats. Scientists have found that even the one-off consumption of a greater amount of palm oil reduces the body's sensitivity to insulin and causes increased fat deposits as well as changes in the energy metabolism of the liver.
NASA's Dawn spacecraft recently detected organic-rich areas on Ceres. Scientists evaluated the geology of the regions to conclude that the organics are most likely native to the dwarf planet. Data from the spacecraft suggest that the interior of Ceres is the source of these organic materials, as opposed to arriving via impacting asteroids or comets, according to a new article.
Scientists have mapped a vast spider web of interactions between proteins in lung cancer cells, as part of an effort to reach what was considered 'undruggable.' This approach revealed new ways to target cells carrying mutations in cancer-causing genes.
Scientists have known for decades that drastically restricting certain nutrients without causing malnutrition prolongs health and lifespan in a wide range of species, but the molecular mechanisms underlying this effect have remained a mystery. Now new research sheds light on an important genetic pathway underlying this effect, raising the possibility that therapies can be developed to prolong healthy human lifespan.
The distribution of normal matter precisely determines gravitational acceleration in all common types of galaxies, a team of researchers reports. This provides further support that the relation is tantamount to a new natural law, the researchers say.
Roads are causing rapid evolutionary change in wild populations of plants and animals according to a new paper. The study looks at the evolutionary changes that are being caused by the way roads slice and dice our planet.