Updated: 1 hour 19 min ago
Male HIV patients in rural South Africa reach the low immunity levels required to become eligible for antiretroviral treatment in less than half the time it takes for immunity levels to drop to similar levels in women, according to new research. Researchers also found a link between potential proxy measures of nutritional status and disease progression, with those reporting food shortages and use of nutritional supplements reaching lower levels of immunity faster.
A new article examines how men and women express masculinity and femininity in the seemingly private and anonymous spaces of public bathrooms.
As far as pop culture goes, it is hard to beat the current zombie upsurge; from TV drama like “The Walking Dead” to movies such as “Resident Evil”, the devilish figures have invaded public consciousness. They are apparently popular in public relations, too, judging by the number of campaigns using zombie-related humor to generate buzz on social media platforms. But how successful are these PR strategies in the context of risk communication? A new study looks deep into this matter, and reveals the match between social media and humor may not be made in heaven, after all.
Cancer is more likely to develop in people who are very overweight (obese), because surplus body fat interferes with various hormone cycles and with glucose and fat metabolism. A metabolic expert draws attention to the fact that more and more people are suffering from obesity, spurring several studies to investigate the links between obesity, metabolic disorders and cancer.
The stupidly effective genius of nature: Researchers discover how nature enables cells to act intelligently
Researchers have discovered a Lévy walk pattern of movement when living cells eat. When the food is transported within the cell by so-called endosomal active transport, it is the same mathematical pattern of movement that many animals follow when foraging for food. A Lévy walk or flight, named after a French mathematician Paul Lévy, is a mix of long trajectories and short random movements. Numerous short movements are made within a small area, and occasionally a long stride to a distant area, where the action is repeated. This particular motion pattern is observed in humans and animals.
Researchers have mimicked the way the human brain processes information with the development of an electronic long-term memory cell.
To measure distances in the Universe, astronomers use Cepheids, a family of variable stars whose luminosity varies with time. Their role as distance calibrators has brought them attention from researchers for more than a century. While it was thought that nearly everything was known about the prototype of Cepheids, named Delta Cephei, a team of researchers have now discovered that this star is not alone, but that it has a hidden companion.
Expansion of cattle pastures has led to the destruction of huge swaths of rain forest in Brazil, home to the world’s largest herd of commercial beef cattle. But a new study shows that market-driven “zero deforestation agreements” have dramatically influenced the behavior of ranchers and the slaughterhouses to which they sell.
European banks are as vulnerable to failing today as they were in the run-up to the 2008 global economic crash and subsequent recession, new research has found. In the first study to compare sources of systemic risk in European banks, economists found banks in southern countries, including France, Spain and Italy, are highly vulnerable to failure. Banks in northern countries appear to be more resilient.
Young children who hear more than one language spoken at home become better communicators, a new study finds.
The world's first comprehensive report on global addictions has revealed that Australians smoke less tobacco and drink less alcohol than the British, but Aussies take more illicit drugs.
A circuit implementing the rudimentary artificial neural network successfully classified three letters by their images.
Wine grape vineyards experimenting with sustainable pest management systems are seeing an unexpected benefit: an increase in butterflies. Over the years, loss in natural habitat has seen the decline in numbers of around 50 species of butterflies in eastern Washington.
Researchers have successfully demonstrated pattern recognition using a magnonic holographic memory device, a development that could greatly improve speech and image recognition hardware.
When it comes to winning evolutionary fitness races, the tortoise once again prevails over the hare. Scientists have found that limiting migrations among populations of bacteria produced better adaptations.
The bacteria that sneak past the brain's defenses to cause deadly bacterial meningitis are clever adversaries. New research investigates the molecular tricks bacteria use to convince their host that they are harmless and cause disease.
Men with naturally high levels of the female hormone estrogen may have a greater risk of developing breast cancer, according to research by an international collaboration. This is the first time a link between estrogen levels in the blood and male breast cancer has been identified, despite its connection to breast, womb and ovarian cancers in women.
Scientists have discovered that a brain protein has a key role in controlling binge drinking in animal models. According to the U.S. Centers for Disease Control and Prevention, binge drinking -- defined as drinking to the point of intoxication -- puts people at greater risk for health problems such as cardiovascular disease, liver disease and neurological damage.
Scientists have mapped out the structure of an important protein involved in cellular function and nervous system development. The new structure provides crucial information for understanding how the protein binds to cellular components. It's also the first structure determined of any ligase in the tubulin tyrosine ligase-like (TTLL) family.
Researchers are working on 3-D bioprinting synthetic tissue that could help regenerate nerve cells in patients with spinal cord injuries.