281 articles from TUESDAY 3.12.2019

Women wearing hijabs in news stories may be judged negatively

Women wearing a veil or headscarf in the United States may face harsher social judgement, according to a study by Penn State researchers that found when given the same information in a news story, some people may consider a woman wearing a headscarf to be more likely to have committed a crime.

NASA finds second tropical system develops in Arabian Sea

Tropical Storm 07A has developed in the eastern Arabian Sea, one day after Tropical Storm 06A developed in the western part of the sea. Infrared imagery from an instrument aboard Terra revealed that very high, powerful storms with very cold cloud top temperatures were southwest of the center.

Coral gardeners bring back Jamaica's reefs, piece by piece

Everton Simpson squints at the Caribbean from his motorboat, scanning the dazzling bands of color for hints of what lies beneath. Emerald green indicates sandy bottoms. Sapphire blue lies above seagrass meadows. And deep indigo marks coral reefs. That's where he's headed.

Siting cell towers needs careful planning

The health impacts of radio-frequency radiation (RFR) are still inconclusive, but the data to date warrants more caution in placing cell towers. An engineering team considers the current understanding of health impacts and possible solutions, which indicate a 500-meter (one third of a mile) buffer around schools and hospitals may help reduce risk for vulnerable populations.

Successful instrument guidance through deep and convulted blood vessel networks

A team led by Professor Sylvain Martel at the Polytechnique Montréal Nanorobotics Laboratory has developed a novel approach to tackling one of the biggest challenges of endovascular surgery: how to reach the most difficult-to-access physiological locations. Their solution is a robotic platform that uses the fringe field generated by the superconducting magnet of a clinical magnetic resonance...

NASA's exoplanet-hunting mission catches a natural comet outburst in unprecedented detail

Using data from NASA's Transiting Exoplanet Survey Satellite (TESS), astronomers at the University of Maryland (UMD), in College Park, Maryland, have captured a clear start-to-finish image sequence of an explosive emission of dust, ice and gases during the close approach of comet 46P/Wirtanen in late 2018. This is the most complete and detailed observation to date of the formation and dissipation...

Highly sensitive epigenomic technology combats disease

Much remains unknown about diseases and the way our bodies respond to them, in part because the human genome is the complete DNA assembly that makes each person unique. A Virginia Tech professor and his team of researchers have created new technology to help in understanding how the human body battles diseases.

Study reveals dynamics of crucial immune system proteins

Of the many marvels of the human immune system, the processing of antigens by the class I proteins of the major histocompatability complex (MHC-I) is among the most mind-boggling. Exactly how these proteins carry out their crucial functions has not been well understood. Now, however, researchers at UC Santa Cruz have worked out the details of key molecular interactions involved in the selection...

Highly sensitive epigenomic technology combats disease

Much remains unknown about diseases and the way our bodies respond to them, in part because the human genome is the complete DNA assembly that makes each person unique. Researchers have created new technology to help in understanding how the human body battles diseases.

How does protein fit in your holiday diet or New Year's resolutions?

While some diets load up on protein and other diets dictate protein sources, it can be hard to know what to consume while managing weight or during weight loss. A new study by nutrition scientists shows that eating more protein daily than what is recommended may benefit only a few - those who are actively losing weight by cutting calories or those strength training to build more lean muscle mass.

How accumulating useful genes helps older yeast fare better in tougher times

Researchers have used yeast to learn more about how satellite (extrachromosomal) DNA circles are formed to carry amplified genes, how the gene duplication is specific to the environmental pressure and the effects of age. Understanding the mechanism of gene duplication and DNA circle formation has relevance to the biology of ageing and the development of drug resistance in cancers cells.

Successful instrument guidance through deep and convoluted blood vessel networks

Researchers have developed a novel approach to tackling one of the biggest challenges of endovascular surgery: how to reach the most difficult-to-access physiological locations. Their solution is a robotic platform that uses the fringe field generated by the superconducting magnet of a clinical MRI scanner to guide medical instruments through deeper and more complex vascular structures. The...

Dynamics of crucial immune system proteins

Of the many marvels of the human immune system, the processing of antigens by the class I proteins of the major histocompatability complex (MHC-I) is among the most mind-boggling. Exactly how these proteins carry out their crucial functions has not been well understood. Now, however, researchers have worked out the details of key molecular interactions involved in the selection and processing of...

How accumulating useful genes helps older yeast fare better in tougher times

Genome amplification, whereby organisms bump up the number of copies of beneficial genes in response to environmental stresses, is implicated in diseases such as cancer and also in ageing. Researchers in the Babraham Institute's Epigenetics research programme have used yeast to learn more about how satellite (extrachromosomal) DNA circles are formed to carry amplified genes, how the gene...

Detecting solar flares, more in real time

Computers can learn to find solar flares and other events in vast streams of solar images and help NOAA forecasters issue timely alerts, according to a new study. The machine-learning technique, developed by scientists at CIRES and NOAA's National Centers for Environmental Information (NCEI), searches massive amounts of satellite data to pick out features significant for space weather. Changing...