With one in seven humans undernourished, and with the challenges of population growth and climate change, the need for efficient food production has never been greater. Eight strategies to cut the environmental and economic costs of keeping livestock, such as cows, goats and sheep, while boosting the quantity and quality of the food produced have been outlined by an international team of scientists. The strategies to make ruminant - cud-chewing - livestock a more sustainable part of the food supply, led by academics at the University of Bristol's School of Veterinary ...

Johns Hopkins researchers say they have found one way that a recently discovered genetic mutation might cause two nasty nervous system diseases. While the affected gene may build up toxic RNA and not make enough protein, the researchers report, the root of the problem seems to be snarls of defective genetic material created at the mutation site. The research team, led by Jiou Wang, Ph.D., an assistant professor of biochemistry and molecular biology and neuroscience at the Johns Hopkins University School of Medicine, reports its finding March 5 on the journal Nature's ...

ROSEMONT, Ill.–A new study appearing in the March issue of the Journal of Bone and Joint Surgery (JBJS) showed that women with distal radius (wrist) fractures had decreased strength compared to similar patients without fractures. This could explain why these women were more likely to fall and might sustain future fractures. The investigators used a variety of balance and strength tests combined with patient-provided information about walking habits to evaluate the physical performance and risk of falls for post-menopausal women with and without previous wrist fractures. ...

GAINESVILLE, Fla. — It may seem normal: As we age, we misplace car keys, or can't remember a name we just learned or a meal we just ordered. But University of Florida researchers say memory trouble doesn't have to be inevitable, and they've found a drug therapy that could potentially reverse this type of memory decline. The drug can't yet be used in humans, but the researchers are pursuing compounds that could someday help the population of aging adults who don't have Alzheimer's or other dementias but still have trouble remembering day-to-day items. Their findings will ...

When a tropical cyclone becomes elongated it is a sign the storm is weakening. Imagery from NASA-NOAA's Suomi NPP satellite today revealed that wind shear was stretching out Tropical Cyclone Faxai and the storm was waning. On March 5 at 1500 UTC/10 a.m. EST, Tropical Cyclone Faxai's center was located near 22.5 south and 155.2 east, about 699 nautical miles/804.4 miles/ 1,295 km west-northwest of Wake Island. According to the Joint Typhoon Warning Center or JTWC, Faxai's maximum sustained surface winds dropped to 50 knots/57.5 mph/92.6 kph. Faxai was moving to the northeast ...

(Santa Barbara, Calif.) — On the other side of the cocaine high is the cocaine crash, and understanding how one follows the other can provide insight into the physiological effects of drug abuse. For decades, brain research has focused on the pleasurable effects of cocaine largely by studying the dopamine pathway. But this approach has left many questions unanswered. So the Behavioral Pharmacology Laboratory (BPL) at UC Santa Barbara decided to take a different approach by examining the motivational systems that induce an animal to seek cocaine in the first place. Their ...

The Galápagos Islands are home to some of the most active volcanoes in the world, with more than 50 eruptions in the last 200 years. Yet until recently, scientists knew far more about the history of finches, tortoises, and iguanas than of the volcanoes on which these unusual fauna had evolved. Now research out of the University of Rochester is providing a better picture of the subterranean plumbing system that feeds the Galápagos volcanoes, as well as a major difference with another Pacific Island chain—the Hawaiian Islands. The findings have been published in the Journal ...

Imagine driving on a dark road. In the distance you see a single light. As the light approaches it splits into two headlights. That's a car, not a motorcycle, your brain tells you. A new study found that neural circuits in the brain rapidly multitask between detecting and discriminating sensory input, such as headlights in the distance. That's different from how electronic circuits work, where one circuit performs a very specific task. The brain, the study found, is wired in way that allows a single pathway to perform multiple tasks. "We showed that circuits in the ...

Researchers at New York University have identified the nature of brain activity that allows us to bridge time in our memories. Their findings, which appear in the latest issue of the journal Neuron, offer new insights into the temporal nature of how we store our recollections and may offer a pathway for addressing memory-related afflictions. "Our memories are known to be 'altered' versions of reality, and how time is altered has not been well understood," said Lila Davachi, an associate professor in NYU's Department of Psychology and Center for Neural Science and the ...

This news release is available in French. Montreal, March 5, 2014 — There are clear benefits to raising a bilingual child. But could there be some things learning a second language doesn't produce, such as a more open-minded youngster? New research from Concordia University shows that, like monolingual children, bilingual children prefer to interact with those who speak their mother tongue with a native accent rather than with peers with a foreign accent. The study, published in the journal Frontiers in Psychology and co-authored by psychology professors Krista ...

Making your own stuff with a 3D printer is vastly cheaper than what you'd pay for manufactured goods, even factoring in the cost of buying the plastic filament. Yet, you can drive the cost down even more by making your own filament from old milk jugs. And, while you are patting yourself on the back for saving 99 cents on the dollar, there's a bonus: you can feel warm and fuzzy about preserving the environment. A study led by Joshua Pearce of Michigan Technological University has shown that making your own plastic 3D printer filament from milk jugs uses less energy—often ...

With cutting-edge technology, sometimes the first step scientists face is just making sure it actually works as intended. The USC Viterbi School of Engineering is home to the USC-Lockheed Martin Quantum Computing Center (QCC), a super-cooled, magnetically shielded facility specially built to house the first commercially available quantum computing processors – devices so advanced that there are only two in use outside the Canadian lab where they were built: The first one went to USC and Lockheed Martin, and the second to NASA and Google. Since USC's facility opened ...

CLEVELAND, Ohio (March 5, 2014)—Calcium and vitamin D supplements after menopause can improve women's cholesterol profiles. And much of that effect is tied to raising vitamin D levels, finds a new study from the Women's Health Initiative (WHI) just published online in Menopause, the journal of The North American Menopause Society (NAMS). Whether calcium or vitamin D can indeed improve cholesterol levels has been debated. And studies of women taking the combination could not separate the effects of calcium from those of vitamin D on cholesterol. But this study, led by NAMS ...

An inflammatory protein that triggers a pregnant mouse's immune response to an infection or other disease appears to cause brain injury in her fetus, but not the premature birth that was long believed to be linked with such neurologic damage in both rodents and humans, new Johns Hopkins-led research suggests. The researchers, reporting online March 5 in the American Journal of Reproductive Immunology, also say they found that an anti-inflammatory drug that is FDA-approved for rheumatoid arthritis and is believed to be safe for humans to take during pregnancy halted the ...

An innovative program from UNC's Frank Porter Graham Child Development Institute (FPG) and 6 partner universities is preparing students with autism for life after high school. "Public high schools may be one of the last best hopes for adolescents with autism—and for their families," said FPG director Samuel L. Odom. "Many of these students will face unemployment and few social ties after school ends." According to Odom, teachers and other professionals in the schools work hard to achieve beneficial results for students with autism spectrum disorders (ASD). But positive ...

Since the days of Darwin, scientists have considered bird song to be an exclusively male trait, resulting from sexual selection. Now a team of researchers from the University of Maryland, Baltimore County (UMBC), the University of Melbourne in Australia, Leiden University in the Netherlands and The Australian National University says that's not the whole story. The team used information from several sources, including the Handbook of the Birds of the World. Their survey included birds from all over the globe, but focused on early-diverging Australasian lineages, which ...

CORVALLIS, Ore. – In one of the first experiments to explore the influence of fashion dolls, an Oregon State University researcher has found that girls who play with Barbie dolls see fewer career options for themselves than for boys. "Playing with Barbie has an effect on girls' ideas about their place in the world," said Aurora M. Sherman, an associate professor in the School of Psychological Science at OSU. "It creates a limit on the sense of what's possible for their future. While it's not a massive effect, it is a measurable and statistically significant effect." Findings ...

Although the "programmable material" still only works in a one-dimensional model construction, it has already demonstrated it unusual capabilities: The research project entitled Phononic Crystal with Adaptive Connectivity has just been published in the journal Advanced Materials. The first step towards mechanical components with freely programmable properties has thus been achieved. The working model used by the researchers consists of a one-meter by one-centimeter aluminum plate that is one millimeter thick. This sheet-metal strip can vibrate at different frequencies. ...

MINNEAPOLIS, MN – March 4, 2013 – The Minneapolis Heart Institute Foundation (MHIF) today announced the results of survey research aimed at discovering patient and family satisfaction with acute care transfers for patients with STEMI (ST-segment elevation myocardial infarction), a severe heart attack best treated quickly with specialized care. The results, based on 98 patient and 80 family surveys, suggest that patient satisfaction with care decisions and communication can be high, even in emergency care situations that require rapid and complex decision making and, in ...

A disease-causing bacterium found in the mouth needs manganese, a trace mineral, in order to cause a serious heart infection, according to a preclinical study led by researchers at Virginia Commonwealth University Philips Institute for Oral Health Research in the School of Dentistry. The findings, which may solve a longstanding mystery of why some bacteria need manganese to cause disease, provide possible new targets for antibiotics. Researchers from VCU and MIT have been studying the bacterium Streptococcus sanguinis, which lives in the mouth, to understand its role ...

VIDEO: When the temperature rises to just below body temperature, this biocompatible gel shrinks dramatically within minutes, compressing tooth-precursor cells (green) enclosed within it. Click here for more information. BOSTON, March 5, 2014 — A bit of pressure from a new shrinking, sponge-like gel is all it takes to turn transplanted unspecialized cells into cells that lay down minerals and begin to form teeth. The bioinspired gel material could one day help repair or replace ...

Philadelphia, Pa. (March 4, 2014) – Prehospital stroke alerts by emergency medical services (EMS) personnel can shorten the time to effective treatment with "clot-busting" drugs for patients with stroke, according to a report in the March issue of Neurosurgery, official journal of the Congress of Neurological Surgeons. The journal is published by Lippincott Williams & Wilkins, a part of Wolters Kluwer Health. Dr. Mandy J. Binning and colleagues at the Capital Institute for Neurosciences (CIN) at Capital Health, Trenton and Pennington, N.J., implemented a prehospital stroke ...

It's a concept that had become universally understood: humans experience six basic emotions—happiness, sadness, anger, fear, disgust, and surprise—and use the same set of facial movements to express them. What's more, we can recognize emotions on another's face, whether that person hails from Boston or Borneo. The only problem with this concept, according to Northeastern University Distinguished Professor of Psychology Lisa Feldman Barrett, is that it isn't true at all. For nearly two decades, Barrett has been tracking down the research that established this misconception ...

This news release is available in German. Scientists in Freiburg may have discovered a fundamental aggravating factor in autoimmune diseases. If B-lymphocytes lack the protein PTP1B, the cells will become hyperactive for stimulatory signals and can thus promote an autoimmune attack. This study offers an additional explanation to how B-cells regulate an immune response. In Germany, approximately 800,000 people suffer from rheumatoid arthritis. In this progressive disease, a person's own immune system attacks and destroys connective tissue. However, the most important ...

FAIRFAX, Va.—Interventional radiologists have devised a new way to access a woman's fibroids—by flipping her wrist and treating via an arm not groin artery—to nonsurgically shrink noncancerous growths in the muscular wall of the uterus. Researchers found this to be less painful and traumatic for women, allowing them to immediately sit up and move after uterine fibroid embolization (UFE)—with no overnight stay, according to a March article in the Society of Interventional Radiology's flagship publication, the Journal of Vascular and Interventional Radiology. "Improving ...