The Science Daily

Sunday, May 1, 2011

ScienceDaily Health Headlines -- for the Week of April 24 to May 1, 2011

ScienceDaily Health Headlines

for the Week of April 24 to May 1, 2011

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ScienceDaily Top Science Headlines -- for the Week of April 24 to May 1, 2011

ScienceDaily Top Science Headlines

for the Week of April 24 to May 1, 2011

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Fossil sirenians, related to today's manatees, give scientists new look at ancient climate

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ScienceDaily Technology Headlines -- for Sunday, May 1, 2011

ScienceDaily Technology Headlines

for Sunday, May 1, 2011

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Spinstars: First polluters of the universe? Imprints of fast rotating massive stars in Milky Way's bulge (April 30, 2011) -- From the analysis of the chemical composition of some of the oldest stars in our galaxy, an international team of astronomers presents new clues on the nature of the first stellar generations in our universe. ... > full story

Electron ping pong in the nano-world (April 30, 2011) -- Researchers in Germany have succeeded in controlling and monitoring strongly accelerated electrons from nano-spheres with extremely short and intense laser pulses. The researchers report how strong electrical fields (near-fields) build up in the vicinity of the nanoparticles and release electrons. The new insights into this light-controlled process can help to generate energetic extreme ultraviolet (XUV) radiation. ... > full story

Understanding how glasses 'relax' provides some relief for manufacturers (April 30, 2011) -- Researchers have used computer simulations to gain basic insights into a fundamental problem in material science related to glass-forming materials, offering a precise mathematical and physical description of the way temperature affects the rate of flow in this broad class of materials -- a long-standing goal. ... > full story

New solar cell technology greatly boosts efficiency (April 29, 2011) -- With the creation of a 3-D nanocone-based solar cell platform, scientists have boosted the light-to-power conversion efficiency of photovoltaics by nearly 80 percent. ... > full story

A better imaging agent for heart disease and breast cancer (April 29, 2011) -- Scientists are reporting development of a process for producing large quantities of a much-needed new imaging agent for computed tomography scans in heart disease, breast cancer and other diseases, and the first evidence that the material is safe for clinical use. The imaging agent is a tantalum oxide nanoparticle, which is inexpensive, and stays in the body long enough to image many different organs. ... > full story

NASA's Swift and Hubble probe asteroid collision debris (April 29, 2011) -- Late last year, astronomers noticed an asteroid named Scheila had unexpectedly brightened, and it was sporting short-lived plumes. Data from NASA's Swift satellite and Hubble Space Telescope showed these changes likely occurred after Scheila was struck by a much smaller asteroid. ... > full story

Fine chemical processes safer and more efficient with new type of reactor (April 29, 2011) -- Researchers have developed a unique chemical reactor, the ‘spinning disc reactor’. This is a cylinder containing a rotor that increases the safety and efficiency of chemical production processes involving gases, liquids and solids through its very high mass transfer rate. This new reactor is particularly beneficial for the pharmaceutical and fine chemical industries. ... > full story

NASA technology looks inside Japan's nuclear reactor (April 29, 2011) -- Design techniques honed at NASA's Jet Propulsion Laboratory in Pasadena, Calif., for Mars rovers were used to create the rover currently examining the inside of Japan's nuclear reactors, in areas not yet deemed safe for human crews. ... > full story

Astronomers unveil portrait of 'exotic super-Earth:' Densest known rocky planet (April 29, 2011) -- Astronomers have revealed details of a "super-exotic" exoplanet that would make the planet Pandora in the movie Avatar pale in comparison. The planet, named 55 Cancri e, is 60 percent larger in diameter than Earth but eight times as massive. Twice as dense as Earth -- almost as dense as lead -- it is the densest solid planet known. ... > full story

Shielding body protects brain from 'shell shocking' blast injuries: Even mild blast exposure damages nerve cells in mice, study shows (April 29, 2011) -- Stronger and tougher body armor to shield the chest, abdomen and back may be just what soldiers fighting in the Afghanistan and Iraq wars need to better protect their brains from mild injuries tied to so-called "shell shock," results of a new study in mice suggest. ... > full story

New microchip revolutionizes medical approach for monitoring for risk of sudden infant death syndrome (April 29, 2011) -- Researchers have developed a microchip sensor that can detect a person's respiratory rate without any contact with the person under observation. The chip allows for constant monitoring of babies in cot beds, hospital patients and other people at risk of obstructive apneas including, sudden infant death syndrome (SIDS). It can be used also for the early detection of sudden sleep of vehicle drivers. ... > full story

Romance is not dead: Digital puts the spark back into relationships (April 29, 2011) -- Few people mull over a text message, however heartfelt, in the same way as a handwritten declaration of love. But researchers in the UK are looking to prove that using digital communication doesn't necessarily mean that romance is dead. ... > full story

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ScienceDaily Environment Headlines -- for Sunday, May 1, 2011

ScienceDaily Environment Headlines

for Sunday, May 1, 2011

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Plant extract may be new therapy for hay fever, study suggests (April 30, 2011) -- Fighting hay fever with a plant extract? It works, as was shown in a new clinical study. Allergic symptoms were alleviated significantly better than with the usual histamine receptor antagonists. ... > full story

Genes control fruit flies' social groupings (April 30, 2011) -- A new study reveals how a fruit fly's genes can influence the company it keeps. Using male flies that had been bred for varying levels of aggressiveness, researchers observed how the males formed groups when placed into an enclosure with females. ... > full story

Wild hogs: Researchers examine impact of feral pigs in eastern North Carolina (April 30, 2011) -- America's feral pig population continues to expand, increasing the potential for interaction with humans and domestic swine -- and for spreading diseases. Researchers at North Carolina State University examined feral pigs from eastern North Carolina to determine exposure to two parasites that can be transmitted from animals to people -- Toxoplasma gondii (T. gondii) and Trichinella. ... > full story

Through unique eyes, box jellyfish look out to the world above the water (April 30, 2011) -- Box jellyfish may seem like rather simple creatures, but in fact their visual system is anything but. They've got no fewer than 24 eyes of four different kinds. Now, researchers have evidence revealing that four of those eyes always peer up out of the water, regardless of the way the rest of the animal is oriented. ... > full story

Mutant mouse reveals new wrinkle in genetic code (April 29, 2011) -- Call it a mystery with a stubby tail: an odd-looking mouse discovered through a US government breeding program in the 1940s that had a short, kinky tail and an extra set of ribs in its neck -- and nobody knew why. ... > full story

Identifying beaked whale foraging habitat in the Bahamas (April 29, 2011) -- Marine biologists have found that oceanographic and prey measurements can be used to identify beaked whale foraging habitat. ... > full story

When a salad is not a salad: Why are dieters easily misled by food names? (April 29, 2011) -- Dieters are so involved with trying to eat virtuously that they are more likely than non-dieters to choose unhealthy foods that are labeled as healthy, according to a new study. It seems dieter focus on food names can work to their disadvantage. ... > full story

Monkeys, too, can recollect what they've seen, study suggests (April 29, 2011) -- It's one thing to recognize your childhood home when you see it in a photograph and quite another to accurately describe or draw a picture of it based on your recollection of how it looked. A new report offers some of the first clear evidence that monkeys, like humans, have the capacity for both forms of memory. ... > full story

How do white blood cells detect invaders to destroy? (April 29, 2011) -- Scientists have discovered how a molecular receptor on the surface of white blood cells identifies when invading fungi have established direct contact with the cell surface and pose an infectious threat. ... > full story

Ivory-billed woodpecker sighted and recorded (April 29, 2011) -- Scientists working independently in three states have now published articles that report multiple sightings of and various forms of evidence for this elusive species, which is extremely difficult to observe and photograph due to its rarity, wariness, and tendency to roam over wide areas in remote swamp habitat. During two encounters with an Ivory-billed Woodpecker, one researcher heard high-pitched calls that seem to match the description of an alarm call that was reported by James Tanner in the 1930s but was never recorded. ... > full story

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ScienceDaily Health Headlines -- for Sunday, May 1, 2011

ScienceDaily Health Headlines

for Sunday, May 1, 2011

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Researchers discover mechanism that could convert certain cells into insulin-making cells (April 30, 2011) -- Researchers may have discovered the underlying mechanism that could convert other cell types into pancreatic beta cells. ... > full story

Second gene associated with specific congenital heart defects identified (April 30, 2011) -- A gene known to be important in cardiac development has been newly associated with congenital heart malformations that result in obstruction of the left ventricular outflow tract. ... > full story

Finding molecular targets of an HIV drug used in cancer therapy (April 30, 2011) -- Researchers have identified potential human molecular targets of the anti-HIV drug Nelfinavir, which may explain why the drug is also effective as a cancer therapy. ... > full story

New test shows promise for detecting warning signs of joint replacement failure (April 30, 2011) -- A new test shows promise for detecting the early stages of a major cause of failure in joint replacement implants, so that patients can be treated and perhaps avoid additional surgery. More than 1.5 million total joint replacement operations are performed worldwide each year. While the success rate is 90 per cent, almost 10 per cent of implants fail and require additional surgery. ... > full story

US Appeals Court opens federal funding for stem cell research (April 30, 2011) -- The US Federal Court of Appeals has overturned an August 2010 ban on federal funding of embryonic stem cell research, paving the way for broader exploration of how stem cells function and how they can be harnessed to treat a wide range of currently incurable diseases. ... > full story

Risk of accelerated aging seen in PTSD patients with childhood trauma (April 29, 2011) -- Adults with post-traumatic stress disorder and a history of childhood trauma had significantly shorter telomere length than those with PTSD but without childhood trauma, a recent study found. ... > full story

New genetic model of premature aging diseases (April 29, 2011) -- Scientists have developed a new genetic model of premature aging disorders that could shed light on these rare conditions in humans and provide a novel platform for large-scale screening of compounds to combat these and other age-related diseases. ... > full story

Mystery solved: How sickle hemoglobin protects against malaria (April 29, 2011) -- A new article is likely to help solve one of the long-standing mysteries of biomedicine. In a study that challenges currently held views, researchers unravel the molecular mechanism whereby sickle cell hemoglobin confers a survival advantage against malaria, the disease caused by Plasmodium infection. These findings open the way to new therapeutic interventions against malaria, a disease that continues to inflict tremendous medical, social and economic burdens to a large proportion of the human population. ... > full story

Measles outbreak underscores need for continued vigilance in health care settings (April 29, 2011) -- In 2008, the largest reported health care-associated measles outbreak in the United States since 1989 occurred in Tucson, Ariz., costing approximately 0,000 in response and containment efforts. Researchers have now identified preventive measures hospitals and health care facilities can implement to reduce the likelihood and decrease the economic impact of a future measles outbreak in these settings. ... > full story

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The Science Daily

Sunday, May 1, 2011

ScienceDaily Health Headlines -- for the Week of April 24 to May 1, 2011

ScienceDaily Health Headlines

for the Week of April 24 to May 1, 2011

ScienceDaily Top Science Headlines -- for the Week of April 24 to May 1, 2011

ScienceDaily Top Science Headlines

for the Week of April 24 to May 1, 2011

ScienceDaily Technology Headlines -- for Sunday, May 1, 2011

ScienceDaily Technology Headlines

for Sunday, May 1, 2011

ScienceDaily Environment Headlines -- for Sunday, May 1, 2011

ScienceDaily Environment Headlines

for Sunday, May 1, 2011

ScienceDaily Health Headlines -- for Sunday, May 1, 2011

ScienceDaily Health Headlines

for Sunday, May 1, 2011

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