In a trial that included nearly 200 participants with peripheral artery disease (PAD), a home-based exercise intervention with a group-mediated cognitive behavioral intervention component improved walking performance and physical activity in patients with PAD, according to a study in the July 3 issue of JAMA. "Few medical therapies improve the functional impairment associated with lower extremity peripheral artery disease. Supervised treadmill exercise increases maximal treadmill walking distance by 50 percent to 200 percent in individuals with PAD. However, supervised ...

"Cigarette smoking is an important cause of cardiovascular disease, and smoking cessation reduces the risk. However, weight gain after smoking cessation may increase the risk of diabetes and weaken the benefit of quitting," write Juhua Luo, Ph.D., of the Indiana University School of Public Health, Bloomington, Ind., and colleagues. As reported in a Research Letter, the authors used data from the Women's Health Initiative (WHI) to assess the association between smoking cessation, weight gain, and subsequent coronary heart disease (CHD) risk among postmenopausal women ...

Professor Andrew Bass (Cornell University), who will be presenting his work at the meeting of the Society for Experimental Biology on the 3rd July, said: "We have traced the evolutionary origins of the behavioural coupling between speech and hand movement back to a developmental compartment in the brain of fishes." "Pectoral appendages (fins and forelimbs) are mainly used for locomotion. However, pectoral appendages also function in social communication for the purposes of making sounds that we simply refer to as non-vocal sonic signals, and for gestural signalling." Studies ...

King penguin chicks survive harsh winters with almost no food by minimising the cost of energy production. A new study, to be presented at the Society for Experimental Biology meeting in Valencia on the 3rd July, shows that the efficiency of the mitochondria, the power house of the cell, is increased in fasted king penguin chicks. King penguin chicks are socially and morphologically well adapted to harsh environmental conditions, however, they experience a severe energy challenge during the cold sub-Antarctic winter, when food is not readily available. Research headed ...

The introduction of CT pulmonary angiography has been associated with an 80% rise in the detection of pulmonary emboli in the US, but with little change in death rates. Professor Renda Soylemez Wiener and colleagues argue this is evidence of overdiagnosis. They say some patients are helped, but many are harmed by the adverse effects of unnecessary treatment. This article is the first of a series looking at the risks and harms of overdiagnosis in a range of common conditions. The series, together with the Preventing Overdiagnosis conference in September, are part of ...

Wednesday 28th June 2013, Durham: A new way of detecting and visualizing fingerprints from crime scenes using colour-changing fluorescent films could lead to higher confidence identifications from latent (hidden) fingerprints on knives, guns, bullet casings and other metal surfaces. The technique is the result of a collaboration between the University of Leicester, the Institut Laue-Langevin and the STFC's ISIS pulsed neutron and muon source, and will be presented today at the Royal Society of Chemistry's Faraday Discussion in Durham. When your finger touches a surface, ...

Women living in the world's most advanced democracies and under the most progressive gender equality regimes still know less about politics than men. Indeed, an unmistakable gender gap in political knowledge seems to be a global phenomenon, according to a ten-nation study of media systems and national political knowledge funded by the Economic and Social Research Council (ESRC). Women know less about politics than men regardless of how advanced a country is in terms of gender equality, says researcher Professor James Curran, Director of the Goldsmiths Leverhulme Media ...

A good night's sleep can increase the benefit of exercise, healthy diet, moderate alcohol consumption and non-smoking in their protection against cardiovascular disease (CVD), according to results of a large population follow-up study.(1) Results showed that the combination of the four traditional healthy lifestyle habits was associated with a 57% lower risk of cardiovascular disease (fatal and non-fatal) and a 67% lower risk of fatal events.(2) But, when "sufficient sleep" (defined as seven or more hours a night) was added to the other four lifestyle factors, the overall ...

A new study found drug-resistant bacteria associated with livestock in the noses of industrial livestock workers in North Carolina but not in the noses of antibiotic-free livestock workers. The drug-resistant bacteria examined were Staphylococcus aureus, commonly known as "Staph," which include the well-known bug MRSA (methicillin-resistant Staphylococcus aureus). New Staph strains are emerging in people who have close contact with livestock animals and for this reason have been given the name livestock-associated Staph. While everyone in the study had direct or indirect ...

DURHAM, N.C. -- You might be falling in love with that new car, but you probably wouldn't pay as much for it if you could resist the feeling. Researchers at Duke University who study how the brain values things -- a field called neuroeconomics -- have found that your feelings about something and the value you put on it are calculated similarly in a specific area of the brain. The region is small area right between the eyes at the front of the brain. It's called the ventromedial prefrontal cortex, or vmPFC for short. Scott Huettel, director of Duke's Center for Interdisciplinary ...

In the first study to compare all available IVF treatments and the risk of neurodevelopmental disorders in children, researchers find that IVF treatments for the most severe forms of male infertility are associated with an increased risk of intellectual disability and autism in children. Autism and intellectual disability remain a rare outcome of IVF, and whilst some of the risk is associated with the risk of multiple births, the study provides important evidence for parents and clinicians on the relative risks of modern IVF treatments. Published in JAMA today, the ...

Conservation efforts have taken an important step forward, thanks to observations of bats – creatures that make up a quarter of all of the UK's native mammal species. In a paper published today, researchers at the University of Leeds describe how they recorded the echolocation calls of more than 15,000 bats during 120 walks in the Lake District to create maps that show the suitability of areas for bat habitation. They are the most detailed large-scale habitat suitability maps ever created for bats in the UK, with a resolution of 50 metres. The impact of the maps will ...

Yale Cancer Center scientists, together with colleagues at the Denver Police Crime Lab and the University of Colorado, have found evidence that a human metastatic tumor can arise when a leukocyte (white blood cell) and a cancer cell fuse to form a genetic hybrid. Their study, published in the journal PLOS ONE, may answer the question of how cancer cells travel from the primary tumor's site of origin to distant organs and tissues of the body — the deadly process of metastasis. Such a theory was first proposed as an explanation for metastasis more than a century ago. But ...

Women who give birth vaginally are at increased risk of developing pelvic organ prolapse during the year after delivery, according to a study of Chinese women by researchers at Yale School of Medicine and Wenzhou Third People's Hospital. Published online July 1 in the British Journal of Obstetrics and Gynaecology, the results show that factors unique to labor and delivery made the pelvic floor relax and not recover its former support during the year after birth. These factors were not present in women who delivered via cesarean section (c-section). "The choice between ...

The hiss of air escaping from a leaky car tire is no one's favorite sound. Even less pleasant? Hearing that hiss of escaping air 250 miles above Earth's surface while inside the pressurized confines of the International Space Station. According to Eric Madaras, an aerospace technologist at NASA's Langley Research Center in Hampton, Va., if an air leak were to occur aboard the station, alarms would sound, and the astronauts would locate and correct the problem according to procedures. But with only the crew's eyes and ears to go on, pinpointing the source of a leak could ...

The local discovery of a species of fly not native to the Midwest could have significant implications on forensic investigations involving decomposing remains, according to a forensic biology researcher at Indiana University-Purdue University Indianapolis (IUPUI). Christine Picard, Ph.D., assistant professor of biology in the School of Science at IUPUI, discovered the fly, Chrysomya megacephala Fabricius (C. megacephala), during a routine collection of fly samples in late September 2012. Until now, entomologists had never documented the fly farther north than New Mexico. "Although ...

(Santa Barbara, Calif.) –– Feeling faint from the flu? Is your cold causing you to collapse? Your infection is the most likely cause, and, according to a new study by UC Santa Barbara research scientist Ryan Hechinger, it may be possible to know just how much energy your bugs are taking from you. His findings are published in a recent issue of The American Naturalist. "When we get sick –– particularly with infectious agents –– we often talk about having our 'energy drained,' or of 'having low energy,'" said Hechinger, an associate research biologist at UCSB's Marine Science ...

MADISON – A discovery at the University of Wisconsin-Madison may represent a significant advance in the quest to create a "hydrogen economy" that would use this abundant element to store and transfer energy. Theoretically, hydrogen is the ultimate non-carbon, non-polluting fuel for storing intermittent energy from the wind or sun. When burned for energy, hydrogen produces water but no carbon dioxide. Practically speaking, producing hydrogen from water, and then storing and using the gas, have proven difficult. The new study, now published online at the Journal of ...

Astronomers recently got their hands on Gemini Observatory's revolutionary new adaptive optics system, called GeMS, "and the data are truly spectacular!" says Robert Blum, Deputy Director of the National Optical Astronomy Observatory with funding by the U.S. National Science Foundation. "What we have seen so far signals an incredible capability that leaps ahead of anything in space or on the ground – and it will for some time." Blum is currently using GeMS to study the environments in and around star clusters, and his preliminary data, targeting the spectacular cluster ...

LOS ANGELES - (July 2, 2013) - Turmeric, a key ingredient in spicy curry dishes, has long been known to have medicinal values. Now new research finds a substance in turmeric, curcumin, may provide lasting protection against potentially deadly lung damage in premature infants. Premature infants often need the assistance of ventilators and forced oxygen therapy because they're frequently born with inadequate lung function. These therapies can cause the infants to suffer lasting lung damage and even death. Researchers at Los Angeles Biomedical Research Institute at Harbor-UCLA ...

CHAMPAIGN, Ill. — Aerobic exercise can lessen – or worsen – the symptoms of inflammatory bowel diseases such as ulcerative colitis, depending on the circumstances under which the exercise is undertaken, researchers report. The researchers found that mice allowed to run freely on an exercise wheel for six weeks had fewer symptoms of colitis than sedentary mice after exposure to a chemical agent that induces colitis symptoms in mice. However, mice forced to run at a moderate pace on a treadmill a few times per week for six weeks had more colitis symptoms and higher mortality ...

On July 1, 2013, at 6:09 p.m. EDT, the sun erupted with a coronal mass ejection, or CME, a solar phenomenon that can send billions of tons of solar particles into space that can affect electronic systems in satellites. Experimental NASA research models based on NASA's Solar Terrestrial Relations Observatory show that the CME was not Earth-directed and it left the sun at around 570 miles per second. The CME may, however, pass by NASA's Messenger, Spitzer and STEREO-B satellites, and their mission operators have been notified. There is only very slight particle radiation ...

Alexandria, VA – Community colleges provide a strong foundation for the nation's graduating STEM (Science Technology Engineering and Mathematics) workforce. In its latest Geoscience Currents, the American Geosciences Institute documents the flow of geoscience students from 2–year to 4-year institutions in Texas, adding to an earlier report on similar data from California released in 2012. In 2012, 70 percent of geoscience students in Texas public universities had transferred from Community Colleges. In particular, Texas A&M University admitted students from 32 community ...

This July Fourth the solar system is showing off some fireworks of its own. Superficially resembling a skyrocket, comet ISON is hurtling toward the sun presently at a whopping 48,000 mph. Its swift motion is captured in this time-lapse movie made from a sequence of pictures taken May 8, 2013, by NASA's Hubble Space Telescope. At the time the images were taken, the comet was 403 million miles from Earth, between the orbits of Mars and Jupiter. The movie shows a sequence of Hubble observations taken over a 43-minute span and compresses this into just five seconds. The ...

A University of Oklahoma-developed theory provides the rationale for the next-generation particle accelerator—the International Linear Collider. The discovery of the Higgs boson at the CERN Large Hadron Collider in Geneva Switzerland this past year prompted particle physicists to look ahead to the development of the ILC, an electron-positron collider designed to measure in detail all the properties of the newly discovered Higgs particle. Howard Baer, professor in the OU Homer L. Dodge Department of Physics and Astronomy, was one of the lead authors of the five-volume ...