VIDEO: Salk scientist Dr. Belmonte discusses the research. Click here for more information. LA JOLLA, CA—The current pace of population aging is without parallel in human history but surprisingly little is known about the human aging process, because lifespans of eight decades or more make it difficult to study. Now, researchers at the Salk Institute for Biological Studies have replicated premature aging in the lab, allowing them to study aging-related disease in a dish. In ...

High blood levels of a hormone produced in response to stress are linked to post-traumatic stress disorder in women but not men, a study from researchers at Emory University and the University of Vermont has found. The results are scheduled for publication in the Feb. 24 issue of Nature. The hormone, called PACAP (pituitary adenylate cyclase-activating polypeptide), is known to act throughout the body and the brain, modulating central nervous system activity, metabolism, blood pressure, pain sensitivity and immune function. The identification of PACAP as an indicator ...

LONDON – A new dinosaur named Brontomerus mcintoshi, or "thunder-thighs" after its enormously powerful thigh muscles, has been discovered in Utah, USA. The new species is described in a paper recently published in the journal Acta Palaeontologica Polonica by an international team of scientists from the U.K. and the U.S. A member of the long-necked sauropod group of dinosaurs which includes Diplodocus and Brachiosaurus, Brontomerus may have used its powerful thighs as a weapon to kick predators, or to help travel over rough, hilly terrain. Brontomerus lived about 110 ...

BOULDER, Colo.—Physicists at the National Institute of Standards and Technology (NIST) have for the first time coaxed two atoms in separate locations to take turns jiggling back and forth while swapping the smallest measurable units of energy. By directly linking the motions of two physically separated atoms, the technique has the potential to simplify information processing in future quantum computers and simulations. Described in a paper published Feb. 23 by Nature,* the NIST experiments enticed two beryllium ions (electrically charged atoms) to take turns ...

Vaccine scientists say their “Holy Grail” is to stimulate immunity that lasts for a lifetime. Live viral vaccines such as the smallpox or yellow fever vaccines provide immune protection that lasts several decades, but despite their success, scientists have remained in the dark as to how they induce such long lasting immunity. Scientists at the Emory Vaccine Center have designed tiny nanoparticles that resemble viruses in size and immunological composition and that induce lifelong immunity in mice. They designed the particles to mimic the immune‑stimulating effects ...

The Austrian research group led by physicist Rainer Blatt suggests a fundamentally novel architecture for quantum computation. They have experimentally demonstrated quantum antennae, which enable the exchange of quantum information between two separate memory cells located on a computer chip. This offers new opportunities to build practical quantum computers. The researchers have published their work in the scientific journal Nature. Six years ago scientists at the University of Innsbruck realized the first quantum byte – a quantum computer with eight entangled quantum ...

The incidence of asthma among children in Europe continues to rise. But not all children are equally at risk. Several studies published over the past few years have shown that children living on farms are significantly less likely to develop asthma than others. An international team of researchers including Dr. Markus Ege and Professor Erika von Mutius of Children's Surgical Clinic in the Dr. von Hauner Children's Hospital (Medical Center of the University of Munich) has just published an epidemiological study that confirms this finding. It shows that the lower susceptibility ...

Experimental physicists have put a lot of effort in isolating sensitive measurements from the disruptive influences of the environment. In an international first, Austrian quantum physicists have realized a toolbox of elementary building blocks for an open-system quantum simulator, where a controlled coupling to an environment is used in a beneficial way. This offers novel prospects for studying the behavior of highly complex quantum systems. The researchers have published their work in the scientific journal Nature. Many phenomena in our world are based on the nature ...

New Haven, Ct. - No matter their size or shape, explosive volcanoes produce tremors at similar frequencies for minutes, days or weeks before they erupt. In the Feb. 24 issue of the journal Nature, researchers at Yale University and the University of British Columbia (UBC) describe a model that explains this strange phenomenon – and may help forecast deadly eruptions. When such volcanoes erupt they can shoot hot ash up to 40 kilometers into the atmosphere and cause devastating destruction when the ash column collapses and spreads as "pyroclastic flows." Prior to most ...

Vancouver, BC - Scientists supported by Genome BC have set a new standard for studying outbreaks of infectious disease by combining advanced genomics with a detailed map of the social relationships between cases to investigate a recent outbreak of tuberculosis in a BC community. The study tracked 41 individuals who developed tuberculosis: patient interviews revealed a tightly-knit community where most patients knew one another, while DNA fingerprinting of the bacterial samples from each individual showed them to be identical to each other. These two factors together ...

Imagine your city isn't as safe as it used to be. Robberies are on the rise, home invasions are increasing and murder rates have nearly doubled in the past three years. What should city officials do about it? Hire more cops to round up the thugs and lock them away in a growing network of prisons? Or design programs that promise more peace by addressing issues like a faltering economy and underperforming schools? Your answer – and the reasoning behind it – can hinge on the metaphor being used to describe the problem, according to new research by Stanford psychologists. ...

ANN ARBOR, Mich. – Doctors are increasingly using a convenient blood glucose test for diagnosing diabetes and pre-diabetes, but a study by the University of Michigan's C.S. Mott Children's Hospital shows it's not the best way to diagnose diabetes in children. The hemoglobin A1c test has become the preferred way to diagnose diabetes among the millions of Americans who have diabetes but show no symptoms. The simple test measures longer-term blood sugar levels -- without requiring patients to fast overnight. But U-M researchers say more study is needed before doctors ...

Americans and Canadians are getting vastly different search results when they look up prescription drug information online, says a study by researchers at the University of British Columbia. Residents of the United States searching on Google for both brand and generic drug names get directed to the government-run National Library of Medicine. However, Canadians performing the same searches end up getting Wikipedia for generic drug searches, and drug company sites for brand searches, according to the study, published online yesterday by the Annals of Pharmacotherapy. "The ...

CHAMPAIGN, Ill. — Researchers have developed a simple method of making short protein chains with spiral structures that can also dissolve in water, two desirable traits not often found together. Such structures could have applications as building blocks for self-assembling nanostructures and as agents for drug and gene delivery. Led by Jianjun Cheng, a professor of materials science and engineering at the University of Illinois, the research team will publish its findings in the Feb. 22 edition of the journal Nature Communications. Materials scientists have been interested ...

The preliminary results of the Semporna Marine Ecological Expedition (December 2010) indicate that Semporna may have the world's highest marine biodiversity. The expedition yielded a record number of 43 species of mushroom corals. Furthermore, some new species were discovered, among which at least two shrimps and possibly a number of gall crabs. The health of the reefs was judged to be relatively poor: 36% of the transects had fair, another 36% had poor live coral cover. Eighteen scientists from Malaysia, the Netherlands and the USA spent three weeks examining the reefs ...

Complementary and alternative medicine (CAM) is increasingly popular in maternity care, but healthcare professionals need formal evidence-based education and guidance about its use, according to a review in the March issue of the Journal of Advanced Nursing. There is also need for greater respect and cooperation between conventional and alternative practitioners and improved communication with patients about the growing use of CAM. University-based members of the Network of Researchers in the Public Health of Complementary and Alternative Medicine (NORPHCAM) reviewed ...

Immunology: Three percent of the world's population is currently infected by hepatitis C. The virus hides in the liver and can cause cirrhosis and liver cancer, and it's the most frequent cause of liver transplants in Denmark. Since the virus mutates strongly, we have no traditional vaccine, but researchers at the University of Copenhagen are now the first to succeed in developing a vaccine, which provides future hope for medical protection from this type of hepatitis. "The hepatitis C virus (HCV) has the same infection pathways as HIV," says Jan Pravsgaard Christensen, ...

Pukas Surf (the leading manufacturer and distributor of high-performance surfboards in Europe) and Tecnalia Research & Innovation have presented their research work into the mechanical behaviour of surfboards. Surfing is still a sport governed by feelings. Most innovations in board design and manufacture, as well as analysis of surfing technique, have been the result of "trial and error" procedures and the experiences of shapers, trainers and surfers. The driving forces behind this joint project aim to "turn feelings into facts and figures" and provide as yet unquantified ...

CLEVELAND – February 21, 2011 – New research shows that medications which have raised safety concerns over heart attack and stroke risks may not have gotten approval from the Food and Drug Administration (FDA) if the cardiovascular effects of fluid retention had been better understood. Fluid retention may explain the increased risk of heart attacks and strokes of medications such as Vioxx®, Bextra®, and Avandia®. The research published in Clinical Hemorheology and Microcirculation (IOS Press, ISSN 1386-0291), calculates the effects of fluid retention upon the velocity ...

New research determined that an increase in the severity of hallux valgus, or bunion deformity, progressively reduced both general and foot-specific health related quality of life (HRQOL). Bunion deformity was found in 36% of the study population and occurred more frequently in women and older individuals. Pain in other parts of the body beyond the foot was associated with increased bunion severity. Details of this UK population-based study appear in the March issue of Arthritis Care & Research, a journal published by Wiley-Blackwell on behalf of the American College of ...

"The presence of two resistent forms of protozoons, the oocysts from the Cryptosporidium genus and cysts of the Giardia genus, is one of the greatest public health problems in water supply, because these parasites can easily survive our water treatment systems", José Antonio Castro Hermida, a scientist at the Galician Institute for Food Quality in the Xunta de Galicia (regional government), tells SINC. A team led by this researcher took 232 water samples in 55 Galician towns, and confirmed the presence of these infectious life forms in waste water treatment plants, drinking ...

This release is available in Spanish and French. Drivers aged over 60 have higher crash rates in non problematic operating environments –as in junctions– than drivers of other age groups. Although elderly drivers present deteriorated driving abilities, they have proved to be more cautious, to compensate such deficiencies. This way, older drivers avoid engaging in risky behaviours like speeding, passing dangerously or driving under the effects of alcohol. Such were the conclusions drawn of the study conducted by University of Granada researchers and recently published ...

Almost 600 million years ago, before the rapid evolution of life forms known as the Cambrian explosion, a community of seaweeds and worm-like animals lived in a quiet deep-water niche near what is now Lantian, a small village in south China. Then they simply died, leaving some 3,000 nearly pristine fossils preserved between beds of black shale deposited in oxygen-free and unbreathable waters. Scientists from the Chinese Academy of Sciences, Virginia Tech in the United States and Northwest University in Xi'an, China report the discovery of the fossils in the Feb. 17 ...

Tel Aviv — Civil protests, from peaceful sit-ins at the Pentagon to violent riots in Cairo, nonetheless share some common characteristics. To study how protests evolve in public spaces, Dr. Tali Hatuka, an architect and head of Tel Aviv University's Laboratory of Contemporary Urban Design, has dissected some of the world's most publicized protests — those in Washington, Istanbul, Tel Aviv, Beijing, and Leipzig. History shows that protests and civil disobedience are inevitable and necessary expressions of dissent in any democratic nation — and under many authoritarian ...

Researchers at IRB Barcelona have completed the 3D structural sequence adopted by several essential proteins in the exchange of substances between the extra and intracellular milieu. This finding provides a global perspective of the structural changes that occur in these relevant proteins during basic cell processes, such as protein synthesis, the regulation of metabolism and cell volume, and nerve transmission. The exchange of substances between the intra and extra cellular environment is performed by transporter proteins located in cell membranes. These proteins act ...