For the first time, researchers at Aalto University in Finland have located where the sounds associated with the northern lights are created. The auroral sounds that have been described in folktales and by wilderness wanderers are formed about 70 meters above the ground level in the measured case. Researchers located the sound sources by installing three separate microphones in an observation site where the auroral sounds were recorded. They then compared sounds captured by the microphones and determined the location of the sound source. The aurora borealis was seen at ...

During a meeting in Banaue, The Philippines, scientists from 21 research institutions from Germany, Vietnam, The Philippines, Thailand, UK, Bulgaria and Spain raised several concerns on the future of the rice ecosystems in South East Asia. The meeting was organized within the framework of the international project LEGATO that deals with the multiple risks for rice ecosystems arising from various aspects of global change. "Threats to sustainable rice production are diverse and come from different directions. Global change is a very important threat, but certainly not the ...

AUGUSTA, Ga. – A lipid that helps lotion soften the skin also helps cells find and stay in the right location in the body by ensuring they keep their "antennae" up, scientists report. Each cell has an antenna, or cilium, that senses the environment then determines where to go and what to do when it arrives, said Dr. Erhard Bieberich, biochemist at the Medical College of Georgia at Georgia Health Sciences University. "A cell is blind; it does not see, it does not feel; it doesn't know where it is," Bieberich said. "It needs to have an organelle that senses where it ...

A new study published in The Journal of Sexual Medicine reveals that handlebar position is associated with changes in genital sensation in female cyclists. Led by Marsha K. Guess, MD, MS, of Yale University School of Medicine, researchers evaluated bicycle set-up in terms of the relationship between the seat and the handlebars. 48 competitive women cyclists were studied. Researchers measured saddle pressures and sensation in the genital region to see if placing handlebars in different positions affects pressure and sensation in the genital region. Results showed that ...

BOSTON (July 9, 2012) -- A growing number of studies imply that children born to obese mothers face health problems stemming from the womb. New research from the Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University and The Mother Infant Research Institute at Tufts Medical Center suggests that low iron status is among these health problems, according to an analysis of maternal hepcidin, a hormone that is key in keeping iron levels balanced. The study enrolled 15 obese pregnant women with body mass index (BMI) greater than 30 and 15 healthy weight ...

An analysis of published data in the medical literature has found that vertebroplasty can provide more pain relief and better function for patients with osteoporotic vertebral compression fractures than nonoperative treatments. Vertebroplasty, a medical procedure for reducing pain caused by this type of fracture, involves the injection of an acrylic cement into the body of the fractured vertebrae for stabilization. According to Ming-Min Shi and colleagues from Zhejiang University in the People's Republic of China, this therapy can have similar or additional benefits over ...

HOUSTON – (July 9, 2012) – Research teams from The University of Texas Health Science Center at Houston (UTHealth) and Paris, France have discovered a gene defect linked to a cluster of systemic complications, including life-threatening thoracic aortic disease and intracranial aneurysms. The new syndrome is similar, but distinct from known syndromes such as Marfan and Loeys-Dietz syndrome. Genome-wide analysis of two unrelated families, one in the United States and one in France, identified mutations in transforming growth factor beta-2 (TGFB2), which plays a key role ...

(July 9, 2012) — After 10 years of debate regarding the risks and benefits of hormone therapy, 15 top medical organizations have come together to issue a statement of agreement regarding the benefits of hormone therapy for symptomatic menopausal women. It was July 9, 2002, when the controversial, highly publicized Women's Health Initiative (WHI) published its assessment of hormone therapy for the prevention of chronic disease and concluded that risks exceeded benefits. The new joint statement, prepared by The North American Menopause Society (NAMS), the American Society ...

MAYWOOD, IL. -- A Loyola study of high school students provides new evidence that a person's circle of friends may influence his or her weight. Students were more likely to gain weight if they had friends who were heavier than they were. Conversely, students were more likely to get trimmer -- or gain weight at a slower pace -- if their friends were leaner than they were. Results of the study by David Shoham, PhD, and colleagues are published in the journal PLoS ONE. Shoham is an assistant professor in the Department of Preventive Medicine & Epidemiology of Loyola ...

SAN ANTONIO, Texas, U.S.A. (July 9, 2012) — A hormone with anti-diabetic properties also reduces depression-like symptoms in mice, researchers from the School of Medicine at the UT Health Science Center San Antonio reported today. All types of current antidepressants, including tricyclics and selective serotonin reuptake inhibitors, increase the risk for type 2 diabetes. "The finding offers a novel target for treating depression, and would be especially beneficial for those depressed individuals who have type 2 diabetes or who are at high risk for developing it," said ...

PROVIDENCE, R.I. – A new monitoring approach developed by researchers from The Miriam Hospital could close a major gap by providing the ability to track whether HIV-positive prisoners are getting the community-based HIV care they need once they are released. Reporting in the journal Virulence, researchers say this new tool could play a major role in preventing the spread of the disease and could guide future strategies to improve the quality of care for prisoners, a population disproportionately affected by HIV. "Jails and prisons are an opportunity to diagnose and ...

SAN ANTONIO (July 9, 2012) – Protein interactions outside breast cancer cells can send signals to the cancer cells to permanently stop proliferating, a new study showed in the School of Medicine at The University of Texas Health Science Center San Antonio. "Because this protein cascade is outside the cells, it is likely amenable to therapeutic manipulation," said lead author Yuzuru Shiio, M.D., Ph.D., assistant professor of biochemistry at the university's Greehey Children's Cancer Research Institute. "I hope our study will ultimately lead to a therapeutic strategy to ...

Iron supplementation reduced fatigue by almost 50% in women who are low in iron but not anemic, according to the results of a clinical trial published July 9 in CMAJ (Canadian Medical Association Journal). "We found that iron supplementation for 12 weeks decreased fatigue by almost 50% from baseline, a significant difference of 19% compared with placebo, in menstruating iron-deficient nonanemic women with unexplained fatigue and ferritin levels below 50 μg/L," writes Dr. Bernard Favrat, Department of Ambulatory Care and Community Medicine, University of Lausanne, ...

HOUSTON – (July 9, 2012) -- What's 100 times stronger than steel, weighs one-sixth as much and can be snapped like a twig by a tiny air bubble? The answer is a carbon nanotube -- and a new study by Rice University scientists details exactly how the much-studied nanomaterials snap when subjected to ultrasonic vibrations in a liquid. "We find that the old saying 'I will break but not bend' does not hold at the micro- and nanoscale," said Rice engineering researcher Matteo Pasquali, the lead scientist on the study, which appears this month in the Proceedings of the National ...

MIAMI – July 9, 21012 -- The Deepwater Horizon oil spill in spring 2010 is the largest oil spill in the history of the United States, with more than 200 million gallons of crude oil released at about 1,500 m. depth off the Mississippi Delta in the Gulf of Mexico. At the time of the accident, the proximity of the intense Loop Current, flowing from the Yucatan Channel to the Florida Straits, raised major concerns that the oil at the surface of the ocean would be headed toward the South Florida and East Atlantic coastal areas. However, the dominant transport of oil and oil ...

Sixty percent of persons incarcerated for gun crimes in the thirteen U.S. states with the most lax standards for legal firearm ownership were not legally prohibited from possessing firearms when they committed the crime that led to their incarceration. According to the study by researchers at the Johns Hopkins Bloomberg School of Public Health, 31 percent of these gun offenders were old enough to possess a firearm and had no prior disqualifying record. But 29 percent had criminal records or would have been too young to legally possess a firearm in states with the strictest ...

ST. LOUIS -- In research funded by the National Institutes of Health and the American Heart Association and published in EMBO Molecular Medicine, Saint Louis University investigator Ángel Baldán, Ph.D., found that the microRNA miR-33 plays a key role in regulating bile metabolism. Further, the research suggests that, in an animal model, the manipulation of this microRNA can improve the liver toxicity that can be caused by statins. "As we learn more about the way cholesterol is moved and metabolized through the body, we have more tools at our disposal to try to limit ...

PROVIDENCE, R.I. [Brown University] — When a person is sick, there is a tell-tale sign in their blood: a different mix of the various types of immune cells called leukocytes. A group of scientists at several institutions including Brown University has discovered a way to determine that mix from the DNA in archival or fresh blood samples, potentially providing a practical new technology not only for medical research but also for clinical diagnosis and treatment monitoring of ailments including some cancers. The key to the new technique, described in two recent papers, ...

Alexandria, VA – Resting in the Karakoram Range between northern Pakistan and western China, the Karakoram glaciers are stumping scientists. Unlike most mountain glaciers, the Karakoram glaciers, which account for 3 percent of the total ice-covered area in the world, excluding Greenland and Antarctica, are not shrinking. On the contrary, a team of French glaciologists has recently confirmed that these glaciers on average have remained stable or may have even grown slightly in recent years. Although all glacial regions evolve in unique ways, why are these glaciers bucking ...

A common belief in the West is that al Qaeda wishes to impose Islam everywhere. This might be a pipe dream for the group, but a new study of their use of religious texts suggests that Islamists' goals are much more modest. Researchers with Arizona State University's Center for Strategic Communication (CSC) analyzed more than 2,000 items of propaganda from al Qaeda and related Islamist groups from 1998 to 2011. They catalogued more than 1,500 quotes from the Qur'an that extremists used to support their arguments, and identified the chapter (surah) and verse represented ...

An estimated 3.8 million California adults — particularly those in households with children, as well as low-income Latinos — could not afford to put adequate food on the table during the recent recession, according to a new policy brief by the UCLA Center for Health Policy Research. In 2009, about one in six low-income Californians had "very low food security," which describes multiple instances in which people had to cut their food intake and experienced hunger, according to the study, which is based on data from the California Health Interview Survey. This is double ...

Skin squamous cell carcinoma (SCC) is a subtype of very aggressive skin cancers that usually develops in sunexposed body regions, but can also affect a large number of organs such as the bladder, esophagus, lungs etc. However, little is known about the biology of these cells, which consequently makes difficult the generation of new specific therapies; actually, the standard treatments are based on surgery and subsequent radiotherapy. Researchers at the Spanish National Cancer Research Centre (CNIO) led by Erwin Wagner, vice-director of Basic Research and director of BBVA ...

CHAMPAIGN, lll. — A new study of aged female rats found that long-term treatment with estrogen and a synthetic progesterone known as MPA increased levels of a protein marker of synapses in the prefrontal cortex, a brain region known to suffer significant losses in aging. The new findings appear to contradict the results of the Women's Health Initiative, a long-term study begun in 1991 to analyze the effects of hormone therapy on a large sample of healthy postmenopausal women aged 50 to 79. Among other negative findings, the WHI found that long-term exposure to estrogen ...

For so many important outcomes in life – applying for jobs, waiting for medical test results – there comes a point when you just have to sit back and hope for the best. But that doesn't mean we always behave that way. New research published in Psychological Science, a journal of the Association for Psychological Science, suggests that even when an outcome is out of our control we often act as though we can still get on the good side of fate by doing good deeds. According to lead researcher Benjamin Converse, Assistant Professor of Public Policy and Psychology at the University ...

Researchers funded by the National Institutes of Health have developed a new silk-based stabilizer that, in the laboratory, kept some vaccines and antibiotics stable up to temperatures of 140 degrees Fahrenheit. This provides a new avenue toward eliminating the need to keep some vaccines and antibiotics refrigerated, which could save billions of dollars every year and increase accessibility to third world populations. Vaccines and antibiotics often need to be refrigerated to prevent alteration of their chemical structures; such alteration can result in less potent or ...