Culture
Galaxies with no dark matter are impossible to understand in the framework of the current theory of galaxy formation, because the role of dark matter is fundamental in causing the collapse of the gas to form stars. In 2018, a study published inNature magazine announced the discovery of a galaxy that lacked dark matter, which made a strong impact, and occupied the covers of popular scientific magazines.
Halide perovskite solar cells hold promise as the next generation of solar cell technologies, but while researchers have developed techniques for improving their material characteristics, nobody understood why these techniques worked. New research sheds light on the science behind these engineering solutions and paves the way for developing more efficient halide perovskite solar cells.
Nematodes, worms found in virtually all environmental habitats, are among the most studied model organisms. They reproduce quickly and their genome contains nearly the same number of genes as the human genome.
A new Tel Aviv University study finds a mechanism exhibited in nematodes allows the nervous system cells -- neurons -- to communicate with germ cells, the cells that contain the information (genetic and epigenetic) that is transmitted to future generations. The research identifies the mode by which neurons transmit messages to these future generations.
Findings from a sweeping global study conducted by SFU Health Sciences professor Scott Lear, among others, reveal a direct correlation between socioeconomic status and one's susceptibility to heart attacks and strokes.
Lear, who holds the Pfizer/Heart & Stroke Foundation Chair in Cardiovascular Prevention Research at St. Paul's Hospital, is the principal investigator of the Prospective Urban Rural Epidemiology (PURE) study site in Vancouver. The latest findings of the study have been published in leading international health journal The Lancet: Global Health.
Sudden hearing loss can be experienced in highly stressful situations, usually lasting a short time. Researchers at São Paulo State University (UNESP) in Brazil, collaborating with colleagues at Oxford Brookes University in the United Kingdom, have reported a discovery that contributes to a deeper understanding of this phenomenon.
Sloths once roamed the Americas, ranging from tiny, cat-sized animals that lived in trees all the way up to massive ground sloths that may have weighed up to six tons. The only species we know and love today, however, are the two-toed and three-toed sloths--but paleontologists have been arguing how to classify them, and their ancestors, for decades.
LOS ANGELES (June 6, 2019) -- Scientists can't make a living copy of your brain outside your body. That's the stuff of science fiction. But in a new study, they recreated a critical brain component, the blood-brain barrier, that functioned as it would in the individual who provided the cells to make it. Their achievement - detailed in a study published today in the peer-reviewed journal Cell Stem Cell - provides a new way to make discoveries about brain disorders and, potentially, predict which drugs will work best for an individual patient.
Just as a computer requires code to work, our bodies are regulated by molecular "programs" that are written early in life and then have to do their job properly for a lifetime. But do they? It's a question that has intrigued researchers for years.
CORVALLIS, Ore. - Females who identify as sexual minorities face an increased risk of substance use that shows up as early as age 13, suggesting early adolescence is a critical period for prevention and intervention efforts, a new study from Oregon State University has found.
The odds of substance use among females who identify as sexual minorities - an umbrella term for those who identify with any sexual identity other than heterosexual or who report same-sex attraction or behavior - is 400% higher than their heterosexual female peers.
For birds, differences in personality are a function of both age and experience, according to new research by University of Alberta biologists.
The study examined the red knot, a medium-sized shorebird that breeds in the Canadian Arctic and winters in North Western Europe. The researchers studied 90 birds over a two year period, comparing behavioural and physiological traits of two age cohorts: adult and juvenile birds. Studying two age groups allowed the researchers to determine which changes were due to age versus time in captivity.
A new model is providing insight into the impact of invasive lionfish on coral reefs in the Atlantic Ocean and Caribbean Sea. The venomous predatory fish has invaded more than 7.3 million square kilometres in the Atlantic and Caribbean, wreaking havoc among native fish populations.
The method, developed and tested with coral reef fish in the Bahamas through an international collaboration of scientists in Canada, the United States, and United Kingdom, is based on the behaviours used by prey to avoid being eaten by predators that use different hunting tactics.
CLEMSON, South Carolina - A faculty-led team of graduate and undergraduate researchers from Clemson University's Eukaryotic Pathogens Innovation Center (EPIC) has unveiled new findings that may help pave the way to an eventual cure for a parasitic infection that affects millions around the nation and world.
A new study has found that specialist active management firms outperform those that have a more mixed offering of active and passive products, with the benefit of specialisation being 0.7 per cent a year on average.
It is the first study to explore the impact of specialisation and is published this month in the journal International Review of Financial Analysis.
Researchers have conclusively shown that people with autistic traits show less empathy and reduced understanding of other people's feelings in a new study out today from the University of Bath and King's College London (1000 BST Friday 7 June 2019).
Whilst autism might be associated with social difficulties, there has been debate in recent years about whether the autistic community experience difficulties in processing emotion or not and the exact form this takes.
New research examining the impact of outsourcing NHS hip operations to the private sector concludes that continuing the trend towards private provision and reducing NHS provision is likely to result in risk selection and widening inequalities in the provision of elective hip operations in England.