feed info

24 articles from ScienceDaily

Kibble-Zurek mechanism for nonequilibrium phase transitions

The Kibble-Zurek (KZ) mechanism, confirmed experimentally only for equilibrium phase transitions, is also applicable for non-equilibrium phase transitions, as is now shown in a landmark study. The KZ mechanism is characterized by the formation of topological defects during continuous phase transition away from the adiabatic limit. This breakthrough finding could open the doors to investigation of...

Health benefits of using wind energy instead of fossil fuels

A new study finds that the health benefits associated with wind power could more than quadruple if operators turned down output from the most polluting fossil-fuel-based power plants when energy from wind is available. However, compared to wealthier communities, disadvantaged communities would reap a smaller share of these benefits.

Common immune cells can prevent intestinal healing

B cells are critical to the proper functioning of the immune system. However, researchers have shown that they can sometimes do more harm than good, as their numbers greatly increase after bowel damage, preventing the tissue from healing. The results can be of significance to the treatment of inflammatory bowel disease.

Cheetah marking trees are hotspots for communication also for other species

Marking trees are important hotspots of communication for cheetahs: Here they exchange information with and about other cheetahs via scent marks, urine and scats. A team has now shown that several mammalian species on farmland in Namibia maintain a network for intra- and interspecific communication at cheetah trees. Black-backed jackals, African wildcats and warthogs visited and sniffed the...

Microplastics could make other pollutants more harmful

Microplastics -- small plastic pieces less than five millimeters in length -- are becoming a ubiquitous ecological contaminant. Studies suggest that on their own, these tiny bits are potentially harmful, and it's unclear what effect they could have on pollutants that latch onto them. Now, researchers show that, when attached to microplastics, UV filters used in products such as sunscreens can make...

Study shows landbuilding, site of freshwater diversion

Supporters of the large-scale Mississippi River sediment diversions currently being planned by the Louisiana Coastal Protection and Restoration Authority got a boost to their case recently when scientists published an analysis of two existing freshwater diversions on the state's coastline, one of which shows a significant amount of land having formed over the past 17 years.

Peanuts and herbs and spices may positively impact gut microbiome

Adding a daily ounce of peanuts or about a teaspoon of herbs and spices to your diet may affect the composition of gut bacteria, an indicator of overall health, according to new research. In two separate studies, nutritional scientists studied the effects of small changes to the average American diet and found improvements to the gut microbiome.