A piece of nettle cloth retrieved from Denmark's richest known Bronze Age burial mound Lusehøj may actually derive from Austria, new findings suggest. The cloth thus tells a surprising story about long-distance Bronze Age trade connections around 800 BC. The findings have just been published in Nature's online journal Scientific Reports. 2,800 years ago, one of Denmark's richest and most powerful men died. His body was burned. And the bereaved wrapped his bones in a cloth made from stinging nettle and put them in a stately bronze container, which also functioned as urn. Now ...

Vienna, Austria, 28 September 2012 – New studies that reveal for the first time the real economic and human costs of caring for cancer patients in Europe will be presented during the ESMO 2012 Congress of the European Society for Medical Oncology in Vienna. "Here we have two studies of enormous importance," noted Prof Peter Boyle, President of the International Prevention Research Institute in Lyon, France, Member of the ESMO Faculty group on Cancer Prevention, who was not involved in the studies. "It is essential to have knowledge of the total costs of cancer and Dr ...

Take the time to enjoy a deep breath next weekend when the 405 freeway closes for Carmageddon II. If it's anything like last year, the air quality is about to get amazing. In study findings announced Sept. 28, UCLA researchers report that they measured air pollutants during last year's Carmageddon (July 15) and found that when 10 miles of the 405 closed, air quality near the shuttered portion improved within minutes, reaching levels 83 percent better than on comparable weekends. Because traffic dipped all over Southern California that weekend, air quality also improved ...

Quantum dots are nanostructures of semiconducting materials that behave a lot like single atoms and are very easy to produce. Given their special properties, researchers see huge potential for quantum dots in technological applications. Before this can happen, however, we need a better understanding of how the electrons "trapped" inside them behave. Dresden physicists have recently observed how electrons in individual quantum dots absorb energy and emit it again as light. Their results were recently published in the journal "Nano Letters". Quantum dots look like miniscule ...

In certain toy racecar tracks, sneaky players can flip a switch, trapping their opponents' vehicles in a loop of track. Cells employ a less subtle approach: they change the track's layout. In a study published online today in Science, scientists at the European Molecular Biology Laboratory (EMBL) and Oxford University discovered that, by forming or undoing gene loops, cells manipulate the path of the transcription machinery – which reads out instructions from DNA – controlling whether it moves along the genetic material in one direction or two. "We found that gene loops ...

In order to assemble novel biomolecular machines, individual protein molecules must be installed at their site of operation with nanometer precision. LMU researchers have now found a way to do just that. Green light on protein assembly! The finely honed tip of the atomic force microscope (AFM) allows one to pick up single biomolecules and deposit them elsewhere with nanometer accuracy. The technique is referred to as Single-Molecule Cut & Paste (SMC&P), and was developed by the research group led by LMU physicist Professor Hermann Gaub. In its initial form, it was only ...

TORONTO, Sept. 28, 2012—Lack of control over operating rooms and other resources as well as a lack of work-life balance are among the main reasons general surgeons may be dissatisfied with their jobs, a new study has found. The study was led by Dr. Najma Ahmed, a trauma surgeon at St. Michael's Hospital, at a time when both the Association of American Medical Colleges and the Canadian Medical Association have reported a decline in the number of general surgeons due to low recruitment, poor retention and early retirement. Dr. Ahmed said that since the general surgery ...

Women who experience early menopause are more likely to have a heart attack or stroke than women whose menopause occurs at a later age, according to a new study by Melissa Wellons, M.D., assistant professor of Medicine in the Vanderbilt Division of Diabetes, Endocrinology and Metabolism. Wellons conducted the research while working at the University of Alabama-Birmingham and it is published in the current issue of Menopause: The Journal of The North American Menopause Society. She said the study is especially important because cardiovascular disease is the leading cause ...

EVANSTON, Ill. --- You've probably never given much thought to the fact that picking up your cup of morning coffee presents your brain with a set of complex decisions. You need to decide how to aim your hand, grasp the handle and raise the cup to your mouth, all without spilling the contents on your lap. A new Northwestern University study shows that, not only does your brain handle such complex decisions for you, it also hides information from you about how those decisions are made. "Our study gives a salient example," said Yangqing 'Lucie' Xu, lead author of the ...

Washington, DC, September 28, 2012 – Screening practices for multidrug-resistant organisms (MDROs) in intensive care units (ICUs) vary widely from hospital to hospital, according to a new study published in the October issue of the American Journal of Infection Control, the official publication of the Association for Professionals in Infection Control and Epidemiology (APIC). The P-NICE interdisciplinary research team from the Columbia University School of Nursing collected and analyzed survey responses from the infection preventionists (IPs) of 250 hospitals that participated ...

New research published in Psychological Science, a journal of the Association for Psychological Science, examines the nuanced relationship between language and different types of perception. Bilingual Infants Can Tell Unfamiliar Languages Apart Speaking more than one language can improve our ability to control our behavior and focus our attention, recent research has shown. But are there any advantages for bilingual children before they can speak in full sentences? We know that bilingual children can tell if a person is speaking one of their native languages or the ...

Boston, MA – Previous research has shown that observation units in a hospital can be an efficient way to care for certain patients, but only about one-third of hospitals in the United States have such units. Now, researchers at Brigham and Women's Hospital (BWH) estimate that maximizing the potential of an observation unit in a hospital could result in $4.6 million in savings annually for the hospital and $3.1 billion in overall savings for the health care system in the United States. These findings are published online by Health Affairs and will also appear in the journal's ...

PHILADELPHIA — We couldn't live without our immune systems, always tuned to detect and eradicate invading pathogens and particles. But sometimes the immune response goes overboard, triggering autoimmune diseases like lupus, asthma or inflammatory bowel disease. A new study led by University of Pennsylvania researchers has now identified a crucial signaling molecule involved in counterbalancing the immune system attack. "The immune response is like driving a car," said Christopher Hunter, professor and chair in the Department of Pathobiology in Penn's School of Veterinary ...

Research undertaken by the University of Southampton and its associates in Venice has revealed that the sea surface temperature (SST) in coastal regions is rising as much as ten times faster than the global average of 0.13 degrees per decade. Researchers believe that this is partly as a result of a process known as the 'urban heat island effect'; where regions experiencing rapid industrial and urban expansion produce vast amounts of heat, making the area warmer than its surroundings. Professor Carl Amos of Ocean and Earth Sciences at the University of Southampton, ...

Soft horns and a tinkling piano form the backbone of "Fifty Degrees North, Four Degrees West," a jazz number with two interesting twists: it has no composer and no actual musicians. Unless you count bacteria and other tiny microbes, that is. The song is the brainchild of Peter Larsen, a biologist at the U.S. Department of Energy's Argonne National Laboratory. Larsen, it turns out, has no musical training at all; his interests run less towards the blues and more towards blue-green algae. When faced with an avalanche of microbial data collected from samples taken from ...

BUFFALO, N.Y. -- An international research team has created unique photoluminescent nanoparticles that shine clearly through more than 3 centimeters of biological tissue -- a depth that makes them a promising tool for deep-tissue optical bioimaging. Though optical imaging is a robust and inexpensive technique commonly used in biomedical applications, current technologies lack the ability to look deep into tissue, the researchers said. This creates a demand for the development of new approaches that provide high-resolution, high-contrast optical bioimaging that doctors ...

CAMBRIDGE, Mass. -- Diving into a pool from a few feet up allows you to enter the water smoothly and painlessly, but jumping from a bridge can lead to a fatal impact. The water is the same in each case, so why is the effect of hitting its surface so different? This seemingly basic question is at the heart of complex research by a team in MIT's Department of Nuclear Science and Engineering (NSE) that studied how materials react to stresses, including impacts. The findings could ultimately help explain phenomena as varied as the breakdown of concrete under sudden stress ...

Orange, Calif., Sept. 28, 2012 — Routine screening for psychiatric, cognitive and social problems could enhance the quality of care and quality of life for children and adults with epilepsy, according to a study by UC Irvine neurologist Dr. Jack Lin and colleagues at the University of Wisconsin-Madison and Amedeo Avogadro University in Italy. Physicians who treat those with epilepsy often focus on seizures, Lin said. However, patients show an increased prevalence of psychiatric issues (mood, anxiety or attention-deficit/hyperactivity disorders), cognitive disorders (in ...

WASHINGTON, D.C. —Nurses and other hospital workers, especially those who work long hours or the night shift, often report trying to juggle the demands of the job and family obligations. A study out today by The George Washington University School of Public Health and Health Services (SPHHS) suggests that the higher the work-family conflict the greater the risk that health care workers will suffer from neck and other types of musculoskeletal pain. "Work-family conflict can be distracting and stressful for hospital employees," says lead author of the study Seung-Sup Kim, ...

Santa Barbara – A study published in Science magazine and co-authored by Bren School Sustainable Fisheries Group (SFG) researchers and their colleagues confirms suspicions that thousands of "data-poor" fisheries, representing some 80 percent of the world's fisheries, are in decline but could recover with proper management. The authors of "Status and Solutions for the World's Unassessed Fisheries" also found that taking quick action to allow depleted stocks to recover to sustainable levels could result in future catches that are 8 to 40 percent larger than are predicted ...

At least when it comes to female politicians, perhaps you can judge a book by its cover, suggest two UCLA researchers who looked at facial features and political stances in the U.S. House of Representatives. "Female politicians with stereotypically feminine facial features are more likely to be Republican than Democrat, and the correlation increases the more conservative the lawmaker's voting record," said lead author Colleen M. Carpinella, a UCLA graduate student in psychology. The researchers also found the opposite to be true: Female politicians with less stereotypically ...

(Santa Barbara, Calif.) –– Thanks to studies of a fish that gives birth to live young and is not fished commercially, scientists at UC Santa Barbara have discovered that food availability is a critical limiting factor in the health of fish populations. The scientists were able to attach numbers to this idea, based on 16 years of data. They discovered that the availability of enough food can drive up to a 10-fold increase in the per capita birthrate of fish. And, with adequate food, the young are up to 10 times more likely to survive than those without it. This research, ...

Uncovering the sources of fresh food contamination could become faster and easier thanks to analysis done at Sandia National Laboratories' National Infrastructure Simulation and Analysis Center (NISAC). The study, in the International Journal of Critical Infrastructures, demonstrates how developing a probability map of the food supply network using stochastic network representation might shorten the time it takes to track down contaminated food sources. Stochastic mapping shows what is known about how product flows through the distribution supply chain and provides a ...

According to the Centers for Disease Control and Prevention, each year nearly 100,000 hospitalized patients die from infections acquired while undergoing treatment for other conditions. While many factors may contribute to the phenomenon, nurse staffing (i.e., the number of patients assigned to a nurse) has been implicated as a major cause. A recent study by Dr. Jeannie P. Cimiotti of Rutgers College of Nursing and co-researchers concludes that the degree of "burnout" experienced by nurses could relate directly to the frequency with which patients acquire infections during ...

CORVALLIS, Ore. – The same "green revolution" concepts that have revolutionized crop agriculture and helped to feed billions of people around the world may now offer similar potential in forestry, scientists say, with benefits for wood, biomass production, drought stress and even greenhouse gas mitigation. Researchers at Oregon State University recently outlined the latest findings on reduced height growth in trees through genetic modification, and concluded that several advantageous growth traits could be achieved for short-rotation forestry, bioenergy, or more efficient ...