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The premier online source for science news since 1996. A service of the American Association for the Advancement of Science.
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New imaging approach offers unprecedented views of staph infection

Mar 14 2018 - 00:03
Eric Skaar, Ph.D., M.P.H., and colleagues at Vanderbilt have combined multiple types of molecular imaging to probe an invasive Staphylococcus aureus infection in the mouse. Their integrated imaging approach, reported this week in Science Translational Medicine, revealed new insights about staph infections and can be broadly applied to any health or disease state.
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Droughts in Mongolia -- past, present and future

Mar 14 2018 - 00:03
The extreme wet and dry periods Mongolia has experienced in the late 20th and early 21st centuries are rare but not unprecedented and future droughts may be no worse. An international team of researchers developed a climate record stretching 2,060 years into Mongolia's past using tree rings. The team then combined the tree-ring record of past climate with computer models that can project future regional climate.
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Are sexual minority students less likely to persist in STEM degrees?

Mar 14 2018 - 00:03
Sexual minority students -- lesbian, gay, bisexual and queer -- were less likely than their heterosexual peers to be retained in STEM degrees after four years of college, suggests a new study based on a national survey of more than 4,000 college students. Diversity is crucial in STEM fields, providing a greater likelihood of reaching breakthroughs. However, compared.
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Brain genes related to innovation revealed in birds

Mar 14 2018 - 00:03
Wild birds that are more clever than others at foraging for food have different levels of a neurotransmitter receptor that has been linked with intelligence in humans, according to a study led by McGill University researchers. The findings could provide insight into the evolutionary mechanisms affecting cognitive traits in a range of animals.
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Muscle vibrations improve control over prosthetic hands

Mar 14 2018 - 00:03
An automated brain-computer interface that vibrates the muscles used for control of prosthetic hands helped three amputees gain better movement control over the prosthetic, according to a new study by Paul Marasco and colleagues.
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Researchers say 'active protection' needed to help Angola's threatened elephants

Mar 14 2018 - 00:03
A new study of African savannah elephant populations in Angola by wildlife ecologists from Elephants Without Borders (EWB) and the University of Massachusetts Amherst reports today that though the population seemed to be recovering after the war ended there, that trend has now reversed, underlining 'the need to be vigilant against poaching and habitat loss,' says first author Scott Schlossberg of EWB.
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Placenta defects a factor in prenatal deaths

Mar 14 2018 - 00:03
The role of the placenta in fetal development is being seriously under-appreciated according to scientists in Cambridge and London. The team studied 103 mutations linked to prenatal death in mice and showed that almost 70 percent affect the placenta. The team also found that some placenta defects could be directly linked to the cause of death. As such, a significant number of prenatal deaths may be due to the placenta, not just the embryo.
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Parasitic worms need their intestinal microflora too

Mar 14 2018 - 00:03
Scientists at The University of Manchester have cast new light on a little understood group of worm infections, which collectively afflicts 1 in 4 people, mainly children -- in the developing the world.
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Researchers uncover way to restore movement sensation in upper limb amputation patients

Mar 14 2018 - 00:03
A team of researchers led by Cleveland Clinic has published first-of-its-kind findings in Science Translational Medicine on a new method of restoring natural movement sensation in patients with prosthetic arms. Led by Paul Marasco, Ph.D., the research team has successfully engineered a sense of complex hand movement in patients with upper limb amputations. This breakthrough may enhance the ability to control their prostheses, independently manage activities of daily living and improve quality of life.
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Obesity may promote resistance to antiangiogenic therapy for breast cancer

Mar 14 2018 - 00:03
A research team led by Massachusetts General Hospital investigators has found, for the first time, that obesity and obesity-related molecular factors appear to induce resistance to antiangiogenic therapy in breast cancer patients and in mouse models of the disease.
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Hand grip strength may be associated with cardiac function and structure

Mar 14 2018 - 00:03
Better hand grip strength may be associated with cardiac functions and structures that help reduce the risk of cardiovascular incidents, according to a study published March 14, 2018, in the open-access journal PLOS ONE by Sebastian Beyer and Steffen Petersen from the Queen Mary University of London, UK, and colleagues.
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Tradeoffs between weaponry and fecundity in snapping shrimp queens vary with eusociality

Mar 14 2018 - 00:03
Amongst species of colonial snapping shrimp, the capacity for defense versus reproduction in queens varies with the level of cooperation, according to a study published March 14, 2018, in the open-access journal PLOS ONE by Sally Bornbusch from Duke University, USA, and colleagues.
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E-cigarettes may be more harmful than beneficial according to evidence-based research

Mar 14 2018 - 00:03
The popularity of electronic cigarettes (e-cigarettes) has grown rapidly in the United States over the past decade. E-cigarettes may help cigarette smokers quit smoking, but they may also encourage transitions to start smoking cigarettes. Based on available evidence, Dartmouth researchers quantified the balance of health benefits and harms associated with e-cigarette use at the population level and found that e-cigarettes could substantially increase the number of adolescents and young adults who eventually become cigarette smokers.
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Molecular motor mystery solved: Novel protein rounds out plant cells' machinery

Mar 14 2018 - 00:03
A research team led by an Oregon State University biophysicist and a plant biologist from University of California, Davis has discovered a novel motor protein that significantly expands current understanding of the evolution and design principle of motor proteins.
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Study: Hispanic Americans across ethnicities want HIV testing in Spanish

Mar 14 2018 - 00:03
New University at Buffalo research that investigated the language preferences of Hispanic Americans seeking HIV testing in New York found that the majority of Hispanic patients preferred to receive care in Spanish, even if they were fluent in English.
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Candidate voice pitch influences voters, but does not lead to better leaders

Mar 14 2018 - 00:03
Voters may prefer voting for candidates with lower sounding voices but they are not necessarily better leaders, a paper recently published in the journal Evolution and Human Behavior by University of Miami Professor Casey Klofstad and Professor Rindy Anderson from Florida Atlantic University has revealed.
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Is your smile male or female?

Mar 14 2018 - 00:03
The dynamics of how men and women smile differs measurably, according to new research, enabling artificial intelligence (AI) to automatically assign gender purely based on a smile.
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Turbocharging fuel cells with a multifunctional catalyst

Mar 14 2018 - 00:03
Zero-emissions cars zipping into a sustainable energy future are just one dream powered by fuel cells. But cell technology has been a little sluggish and fuel prohibitively pricey. This new catalyst could offer a game changer. And there are more developments to come.
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Humans flourished through super volcano 74,000 years ago, study finds

Mar 14 2018 - 00:03
Humans not only survived a massive volcanic eruption 74,000 years ago, they flourished during the resulting climate change that occurred, a new study by UNLV geoscientist Eugene Smith and colleagues found.
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Area surrounding a tumor impacts how breast cancer cells grow

Mar 14 2018 - 00:03
A research team from Oregon Health & Science University, led by Joe Gray, Ph.D. and Jim Korkola, Ph.D. discover a tumor's 'microenvironment' plays a critical role in how HER2 positive breast cancer responds to treatment.
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