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A hot body could help ships reduce drag

2011-06-03
New research into drag reduction has the potential to help industries such shipping to reduce energy use and carbon emissions. Professor Derek Chan from the University of Melbourne's Department of Mathematics and Statistics said the research demonstrates a new way to minimise drag of fast moving projectiles in water. A collaboration between the University of Melbourne and the King Abdulla University of Science and Technology in Saudi Arabia, the research was based on the 255 year-old Leidenfrost effect. The Leidenfrost effect describes the phenomenon where a liquid ...

Higher doses of radiation in fewer treatments proved safe, effective for low-risk prostate cancer

2011-06-03
DALLAS – June 2, 2011 – In a multicenter clinical trial, UT Southwestern Medical Center researchers have found that higher doses of stereotactic radiation therapy requiring fewer treatments are safe and effective for patients with low-to-intermediate-risk prostate cancer. Results of the trial, available in the Journal of Clinical Oncology, showed that stereotactic body radiation therapy (SBRT), which delivers ultra-precise radiation, was effective in treating patients with localized prostate cancer in five 30-minute sessions every other day over two weeks. That compares ...

Silencing a deadly conversation in breast cancer

2011-06-03
While it is already known that breast cancer cells create the conditions for their own survival by communicating their needs to the healthy cells that surround them, Australian researchers have identified a new way of turning off that cellular cross talk. They have shown that a molecule known as 'hedgehog' sits at the centre of the switchboard in breast cancer, transmitting biochemical signals between the cancer cells and healthy cells. When this conversation is blocked – or hedgehog is 'silenced' – tumours shrink and stop their spread. While the finding applies ...

Adult brain requires MeCP2 for proper functioning

2011-06-03
A paper published online today in Science provides evidence that the Methyl-CpG-Binding Protein 2 (MeCP2) is required throughout life to maintain healthy brain function. The findings are reported from the Baylor College of Medicine lab of Huda Zoghbi, HHMI investigator and Director of the Jan and Dan Duncan Neurological Research Institute. Mutations in MeCP2 cause the autism spectrum disorder Rett Syndrome, and have been seen in some cases of classic autism, childhood schizophrenia and milder neuropsychiatric conditions such as anxiety and learning disabilities. Rett ...

BGI sequences genome of the deadly E. coli in Germany and reveals new super-toxic strain

2011-06-03
June 2nd, Shenzhen, China – The recent outbreak of an E. coli infection in Germany has resulted in serious concerns about the potential appearance of a new deadly strain of bacteria. In response to this situation, and immediately after the reports of deaths, the University Medical Centre Hamburg-Eppendorf and BGI-Shenzhen began working together to sequence the bacterium and assess its human health risk. BGI-Shenzhen has just completed the sequence and carried out a preliminary analysis that shows the current infection is caused by an entirely new super-toxic E. coli strain. According ...

Exploring the deep biosphere

2011-06-03
About 20 years ago, the late Thomas Gold, in his landmark concept paper published in the Proceedings of the National Academy of Sciences of the United States of America, postulated that a "deep, hot biosphere" exists in the crust of the Earth [1]. Gold suggested that this biosphere is as deep as 6󈝶 km, and is supported by geological energy sources [2]. The Earth's "deep biosphere", as we know today, should include a variety of subsurface habitats, such as aquifers and sedimentary rocks in the continental regime, and sediments and igneous rock in the marine realm. ...

New sound synchronization technology holds the key to earlier diagnosis of heart disease

2011-06-03
Innovative UK technology is contributing to the development of a revolutionary digital stethoscope that could make it easier for GPs to spot the first signs of heart disease. With Engineering and Physical Sciences Research Council (EPSRC) funding, a Queen Mary, University of London (QMUL) team has developed a computer-based technology that synchronises the various sounds collected by the new stethoscope and which make up a human heartbeat. The sounds can then be analysed by an existing technique called ICA (independent component analysis), with data presented on a laptop ...

Microscopic worms could help open up travel into deep space

2011-06-03
A space flight by millions of microscopic worms could help us overcome the numerous threats posed to human health by space travel. The Caenorhabditis elegans (C. elegans) have also given experts an insight into how to block muscle degradation in the sick and elderly. The worms — from The University of Nottingham — were flown into space onboard the Space Shuttle Atlantis. They spent 11 days in orbit onboard the International Space Station more than 200 miles above the earth. Many of C. elegans' 20,000 genes perform the same functions as those in humans. Experts in human ...

Safer sex: Study examines sexual communication in transgender community

2011-06-03
A new study from North Carolina State University shows that talking about safer sex is a complicated process for individuals in the transgender community. The finding may help efforts to promote safer sex practices in a community facing high HIV rates – and also sheds light on broader questions related to safer sex for everyone. "The main reason for this study is the fact that we're seeing evidence of devastatingly high HIV prevalence rates in the transgender community," says Dr. Kami Kosenko, an assistant professor of communication at NC State and lead author of the ...

Fraser Yachts Exclusive - Fairer Winds Expected this Summer

Fraser Yachts Exclusive - Fairer Winds Expected this Summer
2011-06-03
As the Mediterranean prepares for the summer season the yacht brokerage market is looking fairly healthy in contrast to this quarter in recent years. Supporting this resurgence are the annual boat shows that are beginning to see increased interest and enquiries through their continued efforts. Although all areas of the business are showing equal improvements this cannot be said to be spread across Fraser Yachts' entire network worldwide however with some regions recovering quicker than others it would seem. Most recently interest appears to be concentrated in the ...

Cognitive impairment seen in preschool children with epilepsy

2011-06-03
A recent study has shown that cognitive impairment is evident early on in preschool children with epilepsy, consistent with results of similar studies in older children. Age of onset of first seizure is a significant predictor of cognitive impairment according to this study—the first to evaluate cognitive impairment in children age three to six. The report is available in Epilepsia, a journal published by Wiley-Blackwell on behalf of the International League Against Epilepsy (ILAE). Epilepsy is characterized by recurrent seizures that range from mild staring spells to ...

The blame game in work-family conflict

2011-06-03
INDIANAPOLIS – When the demands of work and family conflict, is the job blamed, is the family role blamed or is blame placed on both? And what are the consequences? A new study by Elizabeth M. Poposki, Ph.D., assistant professor of psychology in the School of Science at Indiana University-Purdue University Indianapolis, is the first to explore day-to-day experiences in attributing this type of blame. The work examines individual incidents of work-family conflict and tracks how blame for this conflict is attributed. Only three percent of those surveyed blamed both work ...

Farmer networks hold key to agricultural innovation in developing countries, Stanford study finds

Farmer networks hold key to agricultural innovation in developing countries, Stanford study finds
2011-06-03
New technologies can improve agricultural sustainability in developing countries, but only with the engagement of local farmers and the social and economic networks they depend on, say Stanford University researchers. Their findings are published in the May 23 online edition of the Proceedings of the National Academy of Sciences (PNAS). "Most people tend to think that technology information flows to farmers through a direct pipeline from scientists, but that isn't true," said lead author Ellen McCullough, a former research fellow at Stanford's Program on Food Security ...

Cause and potential treatment found for cancer drug's kidney toxicity

Cause and potential treatment found for cancer drugs kidney toxicity
2011-06-03
AUGUSTA, Ga. – Scientists may have a way to make the powerful cancer drug cisplatin less toxic to the kidneys and more effective against some cancers. The chemotherapeutic agent used in combination with other drugs for a variety of cancers, results in kidney damage or failure in about 30 percent of users, although the mechanism has been unclear. The most physicians can do today to protect the kidneys is advise patients to drink more water. The relatively simple, highly reactive compound tends to accumulate in the kidneys, said Dr. Navjotsingh Pabla, postdoctoral fellow ...

Iron key to brain tumor drug delivery

2011-06-03
Brain cancer therapy may be more effective if the expression of an iron-storing protein is decreased to enhance the action of therapeutic drugs on brain cancer cells, according to Penn State College of Medicine researchers. Malignant glioblastoma multiforme is a deadly brain tumor for which no long-term effective cure exists. Because drugs in the blood do not pass from the blood vessels to the brain, effective amounts of chemotherapy drugs do not reach the tumor. Increasing dosages damage normal brain tissue and cause significant neurological damage. These dosages also ...

Children eat more vegetables when allowed to choose

2011-06-03
This release is available in French and Spanish. A gesture as simple as allowing children to freely choose the vegetables they want to eat helps to increase the consumption of these foods in children, as University of Granada has found. Moreover, his work suggests that the bitter taste of calcium, present in vegetables such as spinach, collard greens, cabbage, onions, chard or broccoli, can be a factor negatively influencing children's consumption of vegetables. To carry out this experimental study, the authors analyzed the main factors determining vegetable consumption ...

Building a better dam map

2011-06-03
Humans have been building reservoirs and dams for thousands of years. Over the past few decades, their construction has spiked as our need to harness water – critical in flood control, irrigation, recreation, navigation and the creation of hydroelectric power – has grown. And while dams and reservoirs have important benefits, they can also be disruptive and costly to both humans and the environment. A close assessment of critical environmental and social tradeoffs associated with dams and reservoirs within the global river network has been impossible because the data ...

New type of MRSA in hospitalized patients probably of animal origin

2011-06-03
WASHINGTON, DC -- June 2, 2011 -- A distinctly new type of methicillin resistant Staphylococcus aureus (MRSA) that is not detected by traditional genetic screening methods has been discovered in patients in Irish hospitals according to research to be published in the journal Antimicrobial Agents and Chemotherapy. These findings provide significant insights into how new MRSA strains emerge and highlight the potential for the transmission of infectious agents from animals to humans. MRSA is a significant cause of hospital- and community-acquired infection worldwide. MRSA ...

Wagner & Wagner Joins Environmental Alliance

2011-06-03
Wagner & Wagner, Attorneys at Law, is doing more to help its community by making a commitment to improve its environmental profile. By joining the B2B Green Alliance, Wagner & Wagner hopes to promote awareness of eco-friendly business practices for lawyers. The B2B Green Alliance is part of Page 1 Green Solutions, an environmental commitment program sponsored by web marketing firm Page 1 Solutions. Page 1 Solutions strives to reduce its environmental impact not only by following eco-conscious practices in office but also by encouraging its clients to pursue ...

With feedlot manure, it pays to be precise

2011-06-03
This release is available in Spanish. The same precision farming techniques that work with crops can work with manure management on cattle feedlots, according to U.S. Department of Agriculture (USDA) scientists. Agricultural engineers Roger Eigenberg and Bryan Woodbury and their colleagues with USDA's Agricultural Research Service (ARS) in Clay Center, Neb., map the distribution of manure on the surface of feedlots and the flow of liquid manure in rain runoff. This research could lead to both precision harvesting of manure and also precision application of manure ...

Pulling a fast one

2011-06-03
EVANSTON, Ill. --- Do those lightening fast disclaimers at the end of radio and television advertisements scare you away or simply seem like white noise required by regulatory agencies? According to Northwestern University and Wake Forest University research now online in the Journal of Consumer Research, fast disclaimers can give consumers the impression that an advertiser is trying to conceal information. However, trusted brands (versus trust-unknown or not-trusted brands) are immune to the adverse effects of fast disclaimers. "Speak slowly or carry a trusted brand," ...

Man Exonerated After 14 Years Gets No Support from Supreme Court

2011-06-03
It is not certain where John Thompson was one fateful night in December 1984, but one thing is clear: He was not robbing three children in Orleans Parish, Louisiana. Thompson's innocence did not prevent the District Attorney's Office in Orleans Parish from building a case against him for the robbery, or from failing to turn over blood evidence to the defense--a failure that would taint his ability to accurately defend himself against charges of robbery and murder. The District Attorney's Office, headed by Harry Connick, Sr., tried and ultimately convicted Thompson of ...

Leakage of private information from popular websites is common, new study finds

2011-06-03
WORCESTER, Mass. – A study of more than 100 popular websites used by tens of millions of people has found that three quarters directly leak either private information or users' unique identifiers to third-party tracking sites. The study, co-authored by Craig Wills, professor of computer science at Worcester Polytechnic Institute (WPI), also demonstrated how the leakage of private information by many sites, including email addresses, physical addresses, and even the configuration of a user's web browser—so-called browser fingerprints—could permit tracking sites to link many ...

ACSM: Stronger hips improved running mechanics, lessened knee pain

2011-06-03
Hip strengthening exercises performed by female runners not only significantly reduced patellofemoral pain -- a common knee pain experienced by runners -- but they also improved the runners' gaits, according to Indiana University motion analysis expert Tracy Dierks. "The results indicate that the strengthening intervention was successful in reducing pain, which corresponded to improved mechanics," said Dierks, associate professor of physical therapy in the School of Health and Rehabilitation Sciences at Indiana University-Purdue University Indianapolis. "The leg was ...

A promising new approach to autoimmune diseases

2011-06-03
BOSTON – Researchers from Harvard Medical School and MIT have developed a new approach for identifying the "self" proteins targeted in autoimmune diseases such as multiple sclerosis, diabetes and rheumatoid arthritis. In a paper published in Nature Biotechnology, H. Benjamin Larman and colleagues showed that errant immune responses which mistakenly target the body's own proteins rather than foreign invaders can now be examined in molecular detail. Further research could lead to new insights into the exact causes of these debilitating autoimmune disorders. The results ...
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