Culture
Think dietary fiber is just for digestive health? Think again.
Specific fibers known as prebiotics can improve sleep and boost stress resilience by influencing gut bacteria and the potent biologically active molecules, or metabolites, they produce, new University of Colorado Boulder research shows.
The research could ultimately lead to new approaches to treating sleep problems, which affect 70 million Americans.
In animals, releasing eggs in a timely manner is vital to maximize the chances of successful fertilization.
However, how this process evolved and is controlled in different species is poorly understood. A new regulator of egg release has been identified in jellyfish in a new study published March 3 in the open-access journal PLOS Biology by Gonzalo Quiroga Artigas and Evelyn Houliston of Sorbonne University, France, and colleagues. The finding sheds light on how the complex hormonal control of sexual reproduction in animals evolved.
BIRMINGHAM, Ala. - A new culprit -- hydrogen sulfide -- has been found for the deadly infectious disease tuberculosis. Hydrogen sulfide gas is known for its rotten egg smell, yet it has normal physiological roles in the human body to communicate among cells.
Leesburg, VA, March 3, 2020--A multi-center study (n=101) of the relationship between chest CT findings and the clinical conditions of coronavirus disease (COVID-19) pneumonia--published ahead-of-print and open-access in the American Journal of Roentgenology (AJR)--determined that most patients with COVID-19 pneumonia have ground-glass opacities (GGO) (86.1%) or mixed GGO and consolidation (64.4%) and vascular enlargement in the lesion (71.3%).
A team of researchers led by the Biology Department at the University of Hawai'i at Hilo has its new study on animal biodiversity patterns on the planet featured in the February 28, 2020 issue of the journal Science.
American culture values the freedom to change and reinvent one's self. A new study, however, reveals that Americans who do change tend to report a lower sense of well-being.
University of Georgia psychologists compared individual self-concepts between Americans and Japanese counterparts and uncovered this essential contradiction about the heroic myth of American individualism.
The findings were published in the journal Social Psychological and Personality Science.
ITHACA, N.Y. - Gene drives use genetic engineering to create a desired mutation in a few individuals that then spreads via mating throughout a population in fewer than 10 generations.
In theory, such a mechanism could be used to prevent malarial mosquitoes from transmitting disease, or possibly to wipe out an invasive species by disabling its ability to reproduce.
ROCHESTER, Minn. -- The toxic protein tau is a key biological feature in the brains of people with Alzheimer's disease. Yet the factors that make people susceptible or resistant to tau accumulation are not well-understood. A preliminary Mayo Clinic study shows that inherited DNA variants may be associated with developing tau deposits in older adults. The research will be presented at the American Academy of Neurology's 72nd Annual Meeting in Toronto April 25-May 1.
Through a technique known as DNA origami, scientists have created the fastest, most persistent DNA nano motor yet. Angewandte Chemie published the findings, which provide a blueprint for how to optimize the design of motors at the nanoscale -- hundreds of times smaller than the typical human cell.
COLUMBUS, Ohio - A new child can spark feelings of jealousy in a person who already fears being abandoned by his or her partner, research suggests.
A new study found that partners who showed signs of relationship anxiety before the birth of their first child were more likely to be jealous of the child after it was born.
INDIANAPOLIS--Each year, thousands of people in the United States experience a spinal cord injury, damaging the system of nerves that the brain and body use to communicate.
A team of researchers from Indiana University School of Medicine, in collaboration with the National Institute of Neurological Disorders and Stroke, have investigated how boosting energy levels within damaged nerve fibers or axons may represent a novel therapeutic direction for axonal regeneration and functional recovery.
With an estimated 10-15% of adults over the age of 60 having some degree of osteoarthritis, otherwise known as degenerative joint disease (DJD), many people will be familiar with, or will know someone who suffers from, this painful and debilitating condition. What is not well recognised is that DJD, where the protective cartilage that cushions the end of the bones wears down over time, affects a high proportion of pet cats of all age groups, but particularly those 10 years of age and over.
Scientists have made a breakthrough in the search for a new, sustainable permanent magnet.
Most permanent magnets are made from alloys of rare earth metals - but the mining and processing of these materials produces toxic by-products, leading to ecological challenges around rare-earth mines and refineries. At the same time, demand for permanent magnets is increasing as they are a common component in renewable energy, consumer electronics and electric-powered vehicles.
Researchers at Western University are studying a molecule found in sweet oranges and tangerines called nobiletin, which they have shown to drastically reduce obesity and reverse its negative side-effects.
But why it works remains a mystery.
CHAPEL HILL -- The five-year survival rate for adolescents and young adults with cancer has significantly improved from 1975 to 2005 in the United States overall, but this was not the case for all cancers, according to a report in the Journal of the National Cancer Institute.