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 ...

Working with mice, Johns Hopkins researchers have solved a key part of a muscle regeneration mystery plaguing scientists for years, adding strong support to the theory that muscle mass can be built without a complete, fully functional supply of muscle stem cells. "This is good news for those with muscular dystrophy and other muscle wasting disorders that involve diminished stem cell function," says Se-Jin Lee, M.D., Ph.D., lead author of a report on the research in the August issue of the Proceedings of the National Academy of Sciences, and professor of molecular biology ...

Incarcerated patients with chronic hepatitis C virus (HCV) infection are just as likely to respond to treatment for the disease as patients in the community, according to findings published in the October issue of Hepatology, a peer-reviewed journal of the American Association for the Study of Liver Diseases. The study from the University of Wisconsin School of Medicine and Public Health (SMPH) in Madison found that HCV patients in prison were just as likely to achieve a sustained viral response (SVR) as non-incarcerated patients. Medical evidence reports that chronic ...

A new regulator for heart formation has been discovered by studying how embryonic stem cells adjust the packaging of their DNA. This approach to finding genetic regulators, the scientists say, may have the power to provide insight into the development of any tissue in the body – liver, brain, blood and so on. A stem cell has the potential to become any type of cell. Once the choice is made, the cell and other stem cells committed to the same fate divide to form organ tissue. A University of Washington-led research team was particularly interested in how stem cells ...

Alexandria, Va., USA – Today, the International and American Associations for Dental Research (IADR/AADR) published a study titled "Enhancing Oral Health via Sense of Coherence: a Cluster Randomized Trial." This study by lead author Orawan Nammontri, University of Sheffield, UK, is published in the IADR/AADR Journal of Dental Research. Sense of coherence (SOC) has been related to oral health behaviors and oral health related quality of life (OHRQoL) in observational studies. This cluster randomized trial aimed to test the effect of an intervention to enhance SOC on OHRQoL ...

This press release is available in Spanish.A grass fed to cattle throughout much of the tropics may become a biofuel crop that helps the nation meet its future energy needs, according to a U.S. Department of Agriculture (USDA) scientist. Napiergrass (Pennisetum purpureum) is fairly drought-tolerant, grows well on marginal lands, and filters nutrients out of runoff in riparian areas, according to William Anderson, a geneticist in the Agricultural Research Service (ARS) Crop Genetics and Breeding Research Unit in Tifton, Ga. ARS is USDA's principal intramural scientific ...

The deserts of Utah and Nevada have not always been dry. Between 14,000 and 20,000 years ago, when large ice caps covered Canada during the last glacial cooling, valleys throughout the desert southwest filled with water to become large lakes, scientists have long surmised. At their maximum size, the desert lakes covered about a quarter of both Nevada and Utah. Now a team led by a Texas A&M University researcher has found a new water cycle connection between the U.S. southwest and the tropics, and understanding the processes that have brought precipitation to the western ...

Using a continent-spanning telescope, an international team of astronomers has peered to the edge of a black hole at the center of a distant galaxy. For the first time, they have measured the black hole's "point of no return" - the closest distance that matter can approach before being irretrievably pulled into the black hole. A black hole is a region in space where the pull of gravity is so strong that nothing, not even light, can escape. Its boundary is known as the event horizon. "Once objects fall through the event horizon, they're lost forever," says lead author ...