Tech
From everyday experience we know that metals are good conductors for both electricity and heat -- think inductive cooking or electronic devices warming up upon intense use. That intimate link of heat and electrical transport is no coincidence. In typical metals both sorts of conductivity arise from the flow of 'free' electrons, which move like a gas of independent particles through the material.
A new type of bed net could prevent millions of cases of malaria, according to new research published in The Lancet today (10 August).
The two-year clinical trial in Burkina Faso, West Africa involving 2,000 children showed that the number of cases of clinical malaria was reduced by 12 per cent with the new type of mosquito net compared to the conventional one used normally.
NASA's Aqua satellite passed over the Eastern Pacific Ocean on Aug. 10 and found that Tropical Storm John had the "wind knocked out of it" as a result of moving over cool waters.
At 11 a.m. EDT on Aug. 10, the National Hurricane Center or NHC issued the final advisory on John as it weakened to a remnant low pressure area.
On Aug. 10. Infrared data from NASA's Aqua satellite analyzed temperature data in the clouds of the former hurricane that showed warm cloud tops and little precipitation.
Today's news media landscape consists of more choices than ever before. How young people go about selecting the news they consume in this environment of "information overload" may make a difference in the way they participate in politics, according to new research by a sociology doctoral student at the University of Arizona.
Sam Scovill, who will present the research on Saturday at the American Sociological Association Annual Meeting in Philadelphia, was interested in three primary ways young people, ages 15-25, select what news they consume:
A technology designed to improve CRISPR-Cas9 gene editing in mosquitoes and other arthropods succeeds with a high degree of efficiency, while eliminating the need for difficult microinjection of genetic material, according to researchers.
PISCATAWAY, NJ - Increasing taxes on alcohol is one of the most cost-effective methods of reducing the harms caused by alcohol consumption, according to research in the new issue of the Journal of Studies on Alcohol and Drugs.
Restrictions on alcohol advertising and hours of sale are also a "best buy" when it comes to reducing hazardous and harmful alcohol use and, by extension, improving overall health in the population.
LOGAN, UTAH, USA- Climate and land-use change are shrinking natural wildlife habitats around the world. Yet despite their importance to rural economies and natural ecosystems, remarkably little is known about the geographic distribution of most wild species - especially those that migrate seasonally over large areas. By combining NASA satellite imagery with wildlife surveys conducted by state natural resources agencies, a team of researchers at Utah State University and the University of Maryland, and the U.S.
Inducing labor in healthy first-time mothers in the 39th week of pregnancy results in lower rates of cesarean sections compared with waiting for labor to begin naturally at full term, according to a multicenter study funded by the National Institutes of Health (NIH).
Additionally, infants born to women induced at 39 weeks did not experience more stillbirths, newborn deaths or other major health complications.
Boston, MA - Men who most frequently wore boxers had significantly higher sperm concentrations and total sperm counts when compared with men who did not usually wear boxers, according to new research led by Harvard T.H. Chan School of Public Health. The findings of this study, conducted in the Fertility Clinic at Massachusetts General Hospital, suggest that certain styles of men's underwear may inhibit production of sperm.
Some relationships can be complicated. Take the one between sweet potato crops and soil nitrogen, for example.
Too little nitrogen and sweet potato plants don't grow well and have low yields. Too much nitrogen, however, boosts the growth of leaves and branches at the expense of storage roots. That also leads to low yields.
"Carefully managing soil nitrogen levels is essential to obtain high yields from sweet potato crops," says Adalton Fernandes, an agronomist at the Center for Tropical Roots and Starches at São Paulo State University in Brazil.
Just half a degree Celsius could make a major difference when it comes to global warming, according to a new paper published by a collaborative research team based in China.
COLUMBIA, Mo. - Osteoporosis, decreased physical activity and weight gain are serious health concerns for postmenopausal women. Researchers from the University of Missouri now have discovered through a new animal study that soy protein found in food might counter the negative effects of menopause on bone and metabolic health. Moreover, the researchers believe that soy protein might also have positive impacts on bone strength for women who have not yet reached menopause.
The sale of semi-automatic magazine-fed rifles, their booster accessories, and high volume ammunition, should be strictly regulated, to halt the "senseless" firearms violence that plagues the United States, say trauma surgeons in their manifesto for curbing gun injury, published online in the journal Trauma Surgery & Acute Care Open.
Study includes 133 double-blind randomised controlled trials with data from more than 14,000 children and adolescents and 10,000 adults.
The authors say that environment modifications and non-pharmacological interventions should be considered first, but drugs can play an important role in treating ADHD. The study provides information for clinicians on the relative effectiveness and safety of various ADHD drugs.
Protected riverbank habitats within areas of oil palm cultivation can play a key role in reducing the negative impacts on tropical bird numbers but need to be increased in size, new research from the University of Kent has shown.
Converting rainforests to oil palm plantations has well documented impacts on tropical wildlife, including birds. But so far there has been little research on the value natural vegetation in river areas in plantations has for nature, although these are often preserved for water management as 'riparian reserves'.