It is assumed that many bird species are monogamous, yet infidelity is a widespread phenomenon. The advantage for the male seems obvious as in this way he can increase the number of his offspring. A female, however, mostly faces costs. The cuckolded partners often reduce their parental care. In addition, the extra lovers also may transmit diseases. Nevertheless, some females actively seek such contacts. Researchers at the Max Planck Institute for Ornithology in Seewiesen investigated a large number of zebra finches and found a possible explanation for this behaviour. In ...

42U, a leading national data center engineering consulting company, is pleased to announce that the company is hosting a free web cast seminar entitled, Key Data Center Metrics, June 28, 2011 at 11 am MDT. 42U's featured panel of experts include Mark Monroe, Executive Director of The Green Grid; Scot Heath, CTO at 42U; and John Pflueger, Principal Environmental Strategist at Dell. "This discussion will provide our audience with an understanding of data center efficiency and sustainability metrics" says Trica Ang, Marketing Director for 42U. "In addition ...

A new report launched today by the International Osteoporosis Foundation (IOF) in collaboration with the European Federation of Pharmaceutical Industry Associations (EFPIA) reveals that the burden of fractures in Europe has been vastly underestimated. The report concludes that in Europe's five largest countries and Sweden alone, an estimated 2.5 million new fragility fractures occurred in 2010 – the equivalent of 280 fractures per hour. It also showed an astounding eighty deaths per day attributable to fragility fractures. 'Osteoporosis: Burden, health care provision ...

Researchers from North Carolina State University have designed a sensor that can measure strain in structural materials and is capable of healing itself – an important advance for collecting data to help us make informed decisions about structural safety in the wake of earthquakes, explosions or other unexpected events. Engineers use sensors to measure the strain, or forces, exerted on materials used to build everything from airplanes to civil infrastructure. For example, these sensors can tell us how an airplane wing is performing in flight, and give maintenance authorities ...

Scientists are reporting development of the first self-powered nano-device that can transmit data wirelessly over long distances. In a study in ACS's journal Nano Letters, they say it proves the feasibility of a futuristic genre of tiny implantable medical sensors, airborne and stationary surveillance cameras and sensors, wearable personal electronics, and other devices that operate independently without batteries on energy collected from the environment. Zhong Lin Wang and colleagues explain that advances in electronics have opened the door to developing tiny devices ...

There may be a natural solution to the mystery of how small amounts of a banned drug that disrupts thyroid function and plumps up livestock gets into their bodies — and the bodies of humans, scientists are reporting. Their study, which appears in ACS' Journal of Agricultural and Food Chemistry, reports the first evidence that the substance can form naturally in feed and food. Julie Vanden Bussche and colleagues explain that thiouracil is a drug that increases the weight of livestock by making them retain water. Some regulatory agencies have banned its use because the ...

The quest for better ways of encapsulating medicine so that it can reach diseased parts of the body has led scientists to harness — for the first time — living human cells to produce natural capsules with channels for releasing drugs and diagnostic agents. The report appears in ACS' journal Nano Letters. In the report, Dayang Wang and colleagues explain that the human body is very efficient at getting rid of foreign substances. Some foreign substances, such as viruses, are harmful and should be removed. But the body also considers drugs and nanoparticles — meant to treat ...

The small science of nanotechnology — which deals with objects so tiny that thousands would fit inside the period at the end of this sentence — is having a big impact in the construction industry, according to the cover story in the current edition of Chemical & Engineering News (C&EN), the American Chemical Society's weekly newsmagazine. Indeed, some experts believe that nanotechnology will revolutionize the industry, which builds, renovates, and repairs society's infrastructure. In the article C&EN senior editor Bethany Halford describes nanotechnology's surprising ...

Harmful mineral oils from the printing inks used on cardboard can migrate into food if recycled cardboard is used for food packaging. It may contaminate food even if the recycled cardboard is used for the corrugated card transport box that holds individual packs. In tests on experimental packs of fine noodles, researchers in Zurich, Switzerland, found that food rapidly absorbed 10 times the recommended limit for concentration of these contaminating oils from the transport box. The findings were published in the latest edition of Packaging Technology and Science. The world-recognised ...

The Eatery on Beach Street in Fort Worth now features iPads with the popular game Angry Birds to entertain children while Chef Don Gifford prepares homestyle meals from scratch. "Young ones can help the Angry Birds get revenge for stolen eggs on The Eatery's iPads while I make their favorites from our new dinner menu," said Chef Don Gifford. "Our made-from-scratch gourmet Mac and Cheese bar has been bringing lots of families with children to The Eatery on Thursday nights, and the kids light up when they see the iPads," said Cindy Gifford. The ...

A high level of a hormone that regulates phosphate is associated with an increased risk of kidney failure and death among chronic kidney disease (CKD) patients, according to a recent study led by researchers at the University of Miami and funded by the National Institute of Diabetes and Digestive Diseases and Kidney Diseases (NIDDK) at the National Institutes of Health. Results are in the June 15 issue of the Journal of the American Medical Association. In a previous study of patients beginning hemodialysis for treatment of kidney failure, individuals with elevated blood ...

NEW BRUNSWICK, N.J. – A Rutgers University astrophysicist is part of a scientific team that has unveiled evidence of black holes being common in the early universe. The discovery, made using NASA's Chandra X-ray Observatory, shows that these young black holes grew more aggressively than scientists previously thought. The finding has important implications for how astronomers understand the early cosmos, according to Eric Gawiser, assistant professor in Rutgers' Department of Physics and Astronomy, School of Arts and Sciences. "There is a deep and mysterious connection ...

Every living plant cell and animal cell is surrounded by a membrane that helps it communicate with other cells and the outside world. These cellular membranes contain receptor molecules that serve as the cell's eyes and ears. The receptor molecules accomplish three basic things in the communication process: 1) recognize an outside signal, 2) transport that signal across the cell's membrane and 3) initiate the reading of the signal inside the cell and then initiate the cell's response to that signal. These steps are collectively known as transmembrane signaling. Transmembrane ...

FAIRFAX, Va., June 15, 2011—George Mason University scientists discovered recently that a phenomenon called a giant magnetic rope is the cause of solar storms. Confirming the existence of this formation is a key first step in helping to mitigate the adverse effects that solar storm eruptions can have on satellite communications on Earth. The discovery was made by associate professor Jie Zhang and his graduate student Xin Cheng using images from the NASA Solar Dynamic Observatory (SDO) spacecraft. Though the magnetic rope was believed to be the cause of these giant ...

MR enterography reduces exposure to ionizing radiation Revising protocol may reduce costs, complexity while maintaining integrity of diagnosis Use of anti-peristalitc agent may not be necessary to obtain high-quality images (Providence, R.I.) – A new study from Rhode Island Hospital has found that MR enterography (MRE) without the use of an anti-peristaltic agent were as reliable as CT enterography (CTE) in determining the presence of Crohn's disease. Additionally, MRE reduces the patient's exposure to ionizing radiation. The study is now published online in advance ...

Men are sometimes criticized for being unwilling to ask for directions when they travel, but they can benefit from looking for help as they begin their journeys as fathers, according to a researcher on fatherhood at the University of Chicago. Along the way, they should not shy from asserting their roles, said Jennifer Bellamy, an Assistant Professor at the University of Chicago School of Social Service Administration. "Sometimes dads feel like they don't get the same level of support that moms do when they become parents, but I think dads should seek opportunities from ...

CHICAGO (June 15, 2011) – A study of Canadian home-care patients suggests doctors may be overprescribing antibiotics for patients receiving ongoing medical care at home. The study, published in the June issue of Infection Control and Hospital Epidemiology, the journal of the Society for Healthcare Epidemiology of America, suggests that more should be done to monitor antibiotic use in home-care patients to avoid misuse that could decrease the efficacy of the drugs over time. According to the study, led by researchers from McMaster University in Ontario, antibiotic prescriptions ...

CHICAGO (June 15, 2011) – Use of a glowing gel that shows kids how well they wash their hands by illustrating bacteria they missed while washing and may significantly improve hand hygiene, according to a study published in the July issue of Infection Control and Hospital Epidemiology, the journal of the Society for Healthcare Epidemiology of America. What makes this particular intervention unique is where it was performed: a children's hospital emergency department waiting room. "Waiting for the doctor is usually a tiresome and unproductive experience, but we were able ...

TORONTO, ON – Researchers at the University of Toronto are the first to indentify a potential cause for a severe sleep disorder that has been closely linked to Parkinson's disease and other neurodegenerative diseases. "Our research is the first to establish a potential genetic link to human REM sleep behaviour disorder (RBD). That's important because between 60 and 80 per cent of people diagnosed with human RBD develop Parkinson's disease or other neurodegenerative disorders later in life," says Dr. John Peever, lead author of the study that recently appeared in The Journal ...

DURHAM, NC – By shooting a beam of neutrinos through a small slice of the Earth under Japan, physicists say they've caught the particles changing their stripes in new ways. These observations may one day help explain why the universe is made of matter rather than anti-matter. The T2K experiment has been using the Japan Proton Accelerator Research Complex, or J-PARC, located on the east coast, to shoot a beam of muon neutrinos 185 miles, or 295 kilometers, underground toward the Super-Kamiokande, or Super-K, detector in Kamioka, near Japan's west coast. The goal of the ...

CHICAGO (June 15, 2011) – Geisinger Health System vaccinated more than 92% of all employees against influenza this season, with a modification of a mandatory program. On average, fewer than half of all healthcare workers receive flu vaccinations. In an article published in July's Infection Control and Hospital Epidemiology, the journal of the Society for Healthcare Epidemiology of America, Dr. Lisa Esolen demonstrated the effectiveness of Geisinger's influenza vaccination that helped achieve high rates of vaccine compliance for two consecutive years. This past season, ...

GAINESVILLE, Fla. — Like rock stars of the rodent world, the flashiest performers of a Central American mouse species get the most attention from the ladies, a University of Florida study shows. Neotropical singing mice woo their mates with high-pitched vocal trills, and a bravura performance attracts more interest from females, according to a study published online this week in the journal Animal Behaviour by doctoral candidate Bret Pasch and colleagues in the department of biology at the University of Florida. The males' prowess could give female mice clues to a ...

DURHAM, NC -- A person scanning baggage or X-rays stands a better chance of seeing everything they're searching for if they aren't feeling anxious, according to a new laboratory experiment. Duke psychologists put a dozen students through a test in which they searched for particular shapes on a computer display, simulating the sort of visual searching performed by airport security teams and radiologists. Stephen Mitroff, an assistant professor of psychology and neuroscience who led the experiment, says this area of cognitive psychology is important for improving homeland ...

Have you ever thought you could lose weight and star on The Biggest Loser if you weren't so darned hungry all the time? Unfortunately, the diets we turn to for help don't do the job. How often have you heard that weight loss is as simple as taking in fewer calories than you burn and--voila!--the pounds will come off? It's actually a bit more complicated than that. Doctors used to think that a calorie was a calorie. It didn't matter if your diet plan called for eating 1,200 calories in Twinkies all day. If you cut out enough calories, you could lose weight. Now, they're ...

Using sophisticated methods of dating rocks, a team including University of Southampton researchers based at the National Oceanography Centre, Southampton, have pinned down the timing of the start of an episode of an ancient global warming known as the Paleocene-Eocene thermal maximum (PETM), with implications for the triggering mechanism. The early part of the Cenozoic era, which started around 65.5 million years ago witnessed a series of transient global warming events called hyperthermals. The most severe of these was the PETM at the Paleocene–Eocene boundary, around ...