ScienceDaily: Latest Science News

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• Bats Recognize The Individual Voices Of Other Bats
• Carbon Monoxide Reverses Diabetic Gastric Problem In Mice, Study Suggests
• Most Common Brain Cancer May Originate In Neural Stem Cells
• New System Monitors Fetal Heartbeat
• Controlling Heat In Large Data Centers With Improved Techniques
• Students Who Get Stuck Look For Computer Malfunctions
• Scientists Use Bed Bugs' Own Chemistry Against Them
• 'Shock And Kill' Research Gives New Hope For HIV-1 Eradication
• Newly Discovered Reactions From An Old Drug May Lead To New Antibiotics
• One In Four Nursing Home Residents Carry MRSA, UK Study Suggests
• If At First You Don't Succeed, Let The Search Engine Try
• Even With No Treatment Available, Cancer Patients Want To Know Metastasis Risk
• People Who Wear Rose-colored Glasses See More, Study Shows
• Molecular Powerbrokers Involved In Cancer's Spread
• Molecules Which Flip Into Their Own Mirror Image
• Waist Size And Body Mass Index Are Risk Factors For Sleep Disordered Breathing In Children
• Phthalates And Birth Defects? Doubt Cast On Link Between Environmental Chemicals And Male Urogenital Abnormalities
• 17 Million US Children Live More Than An Hour Away From Trauma Care
• Parkinson's Disease Associated With Pesticide Exposure In French Farm Workers
• New, Light-driven Nanomotor Is Simpler, More Promising, Scientists Say
• Drug's Epilepsy-prevention Effect May Be Widely Applicable
• Bee-killing Parasite Genome Sequenced
• Strategies To Rein In Epidemics Need To Be Retooled For Rural Populations, Computer Modeling Shows
• Different Genes Cause Loss Of Body Parts -- Pelvis And Body Armor -- In Similar Fish
• Cigarette Smoking Does Not Affect Everyone In Same Way
• Carbon Payments Help Protect Threatened Tropical Mammals
• Overweight Male Teens With Normal Blood Pressures Showing Signs Of Heart Damage
• Bacteria From The Deep Can Clean Up Heavy Metals
• Benefit To Women Not Enough To Sway Men To Get HPV Vaccine
• Stem Cells Cultured On Contact Lens Restore Sight In Patients With Blinding Corneal Disease

Bats Recognize The Individual Voices Of Other Bats Posted: 06 Jun 2009 02:00 PM PDT Bats use echolocation for more than just spatial knowledge. Bats can use the characteristics of other bats' voices to recognize each other, according to a new study.

Carbon Monoxide Reverses Diabetic Gastric Problem In Mice, Study Suggests Posted: 06 Jun 2009 02:00 PM PDT Researchers have shown that very low doses of inhaled carbon monoxide in diabetic mice reverses the condition known as gastroparesis or delayed stomach emptying, a common and painful complication for many diabetic patients.

Most Common Brain Cancer May Originate In Neural Stem Cells Posted: 06 Jun 2009 02:00 PM PDT Scientists have found that a deficiency in a key tumor suppressor gene in the brain leads to the most common type of adult brain cancer. The study, conducted in mice that mimic human cancer, points the way to more effective future treatments and a way to screen for the disease early.

New System Monitors Fetal Heartbeat Posted: 06 Jun 2009 02:00 PM PDT Tiny fluctuations in a fetus's heartbeat can indicate distress, but currently there is no way to detect such subtle variations except during labor, when it could be too late to prevent serious or even fatal complications. Now, a new system could allow much earlier monitoring of the fetal heartbeat.

Controlling Heat In Large Data Centers With Improved Techniques Posted: 06 Jun 2009 02:00 PM PDT Approximately a third of the electricity consumed by large data centers doesn't power the computer servers that conduct online transactions, serve web pages or store information. Instead, that electricity must be used for cooling the servers, a demand that continues to increase as computer processing power grows.

Students Who Get Stuck Look For Computer Malfunctions Posted: 06 Jun 2009 02:00 PM PDT When students working with educational software get stymied, they often try to find fault with the computer or the software, rather than look to their own mistakes, according to new research.

Scientists Use Bed Bugs' Own Chemistry Against Them Posted: 06 Jun 2009 08:00 AM PDT Scientists here have determined that combining bed bugs' own chemical signals with a common insect control agent makes that treatment more effective at killing the bugs. The researchers found that stirring up the bed bugs by spraying their environment with synthetic versions of their alarm pheromones makes them more likely to walk through agents called desiccant dusts, which kill the bugs by making them highly susceptible to dehydration.

'Shock And Kill' Research Gives New Hope For HIV-1 Eradication Posted: 06 Jun 2009 08:00 AM PDT Latent HIV genes can be "smoked out" of human cells. This so-called "shock and kill" technique might represent a new milestone along the way to the discovery of a cure for HIV/AIDS.

Newly Discovered Reactions From An Old Drug May Lead To New Antibiotics Posted: 06 Jun 2009 08:00 AM PDT A mineral found at health food stores could be the key to developing a new line of antibiotics for bacteria that commonly cause diarrhea, tooth decay and, in some severe cases, death. Selenium is found in a number of proteins. New research shows that interrupting the way selenoproteins are made can halt the growth of the super bug Clostridium difficile and Treponema denticola, a major contributor to gum disease.

One In Four Nursing Home Residents Carry MRSA, UK Study Suggests Posted: 06 Jun 2009 08:00 AM PDT MRSA is a major problem in nursing homes with one in four residents carrying the bacteria, a new study has found.

If At First You Don't Succeed, Let The Search Engine Try Posted: 06 Jun 2009 08:00 AM PDT No matter how good a search engine is, it is sometimes necessary to change the search terms to get the information you need. But what if you did not have to change the search terms yourself? What if the search engine could do that for you?

Even With No Treatment Available, Cancer Patients Want To Know Metastasis Risk Posted: 06 Jun 2009 08:00 AM PDT If you had cancer and a genetic test could predict the risk of the tumor spreading aggressively, would you want to know -- even if no treatments existed to help you? An overwhelming majority of eye cancer patients would answer yes, according to a new study.

People Who Wear Rose-colored Glasses See More, Study Shows Posted: 06 Jun 2009 02:00 AM PDT A new study provides the first direct evidence that our mood literally changes the way our visual system filters our perceptual experience suggesting that seeing the world through rose-colored glasses is more biological reality than metaphor.

Molecular Powerbrokers Involved In Cancer's Spread Posted: 06 Jun 2009 02:00 AM PDT Scientists have known for some time that biological molecules interact with one another in a similarly complex pattern. Now researchers have determined that hamstringing these molecular powerbrokers is a good way to derail processes such as cancer development.

Molecules Which Flip Into Their Own Mirror Image Posted: 06 Jun 2009 02:00 AM PDT Catalysts do function, despite the fact that not all the chemical reactions (and partial reactions) which occur are fully understood, including those which take place during the treatment of automobile exhaust. If scientists understood these processes better not only would they be able to optimize exhaust gas catalysts but also other phenomena which are observed on surfaces, for instance when molecules orient themselves in either right or left handed fashion (i.e. as an image or mirror image). Knowing this would, not least, open new avenues of development in pharmacology for the manufacturers of medicines.

Waist Size And Body Mass Index Are Risk Factors For Sleep Disordered Breathing In Children Posted: 06 Jun 2009 02:00 AM PDT A new study found that waist circumference and body mass index (BMI) are consistent, independent risk factors for all severity levels of sleep disordered breathing (SDB) in children, suggesting that as with adult SDB, metabolic factors are important risk factors for childhood SDB.

Phthalates And Birth Defects? Doubt Cast On Link Between Environmental Chemicals And Male Urogenital Abnormalities Posted: 06 Jun 2009 02:00 AM PDT In recent decades, there have been periodic reports of a worldwide decline in sperm count and quality. Male infertility has ostensibly been on the rise, accompanied by increases in testicular cancer and hypospadias -- a congenital defect in which the opening of the urethra is on the underside, rather than at the end, of the penis. Taken together, these three conditions have been termed testicular dysgenesis syndrome.

17 Million US Children Live More Than An Hour Away From Trauma Care Posted: 06 Jun 2009 02:00 AM PDT More than 17 million US children live more than an hour away by ground or air transportation from a life-saving pediatric trauma center, according to a new study by researchers at the Children's Hospital of Philadelphia and the University of Pennsylvania. The creation of a national inventory of pediatric trauma centers may help to identify the locations of gaps and greatly improve access to care for US children, the authors said.

Parkinson's Disease Associated With Pesticide Exposure In French Farm Workers Posted: 05 Jun 2009 05:00 PM PDT The cause of Parkinson's disease (PD), the second most frequent neurodegenerative disease after Alzheimer's disease, is unknown, but in most cases it is believed to involve a combination of environmental risk factors and genetic susceptibility. Laboratory studies in rats have shown that injecting the insecticide rotenone leads to an animal model of PD and several epidemiological studies have shown an association between pesticides and PD, but most have not identified specific pesticides or studied the amount of exposure relating to the association.

New, Light-driven Nanomotor Is Simpler, More Promising, Scientists Say Posted: 05 Jun 2009 05:00 PM PDT Sunflowers track the sun as it moves from east to west. But people usually have to convert sunlight into electricity or heat to put its power to use. Now, a team of chemists is the latest to report a new mechanism to transform light straight into motion -- albeit at a very, very, very tiny scale.

Drug's Epilepsy-prevention Effect May Be Widely Applicable Posted: 05 Jun 2009 05:00 PM PDT A drug with potential to prevent epilepsy caused by a genetic condition may also help prevent more common forms of epilepsy caused by brain injury.

Bee-killing Parasite Genome Sequenced Posted: 05 Jun 2009 05:00 PM PDT Scientists have sequenced the genome of a parasite that can kill honey bees. Nosema ceranae is one of many pathogens suspected of contributing to the current bee population decline, termed colony collapse disorder.

Strategies To Rein In Epidemics Need To Be Retooled For Rural Populations, Computer Modeling Shows Posted: 05 Jun 2009 05:00 PM PDT Strategies to mitigate disease epidemics in cities will not be so effective in rural areas, according to researchers using computer models to study the spread of disease. They found that in cities, people have a lot of informal contact with one another but looser ties.

Different Genes Cause Loss Of Body Parts -- Pelvis And Body Armor -- In Similar Fish Posted: 05 Jun 2009 02:00 PM PDT New research shows that when two species of stickleback fish evolved and lost their pelvises and body armor, the changes were caused by different genes in each species. That surprised researchers, who expected the same genes would control the same changes in both related fish. The findings shed new light on how evolution produces diversity in nature, and on the evolution of limb loss.

Cigarette Smoking Does Not Affect Everyone In Same Way Posted: 05 Jun 2009 02:00 PM PDT An autoimmune mechanism, compounded by genetic predisposition in COPD, can explain the progression of the disease in some smokers and the evasion in others.

Carbon Payments Help Protect Threatened Tropical Mammals Posted: 05 Jun 2009 02:00 PM PDT A new report provides compelling evidence that paying to conserve billions of tons of carbon stored in tropical forests could also protect orangutans, pygmy elephants, and other wildlife at risk of extinction. The study is one of the first to offer quantitative evidence linking the drive to reduce carbon emissions from forests with the push to preserve threatened mammal biodiversity.

Overweight Male Teens With Normal Blood Pressures Showing Signs Of Heart Damage Posted: 05 Jun 2009 02:00 PM PDT Even while their blood pressures are still normal, overweight male teens may have elevated levels of a hormone known to increase pressures as well as early signs of heart damage, researchers say.

Bacteria From The Deep Can Clean Up Heavy Metals Posted: 05 Jun 2009 02:00 PM PDT A novel species of bacteria, Brachybacterium strain Mn32A, isolated from Pacific Ocean sediments, could provide a powerful clean-up tool for heavy metal pollution. Scientists report that the bacterium was highly effective in oxidizing manganese and other heavy metals.

Benefit To Women Not Enough To Sway Men To Get HPV Vaccine Posted: 05 Jun 2009 02:00 PM PDT Informing men that a new vaccine to prevent human papillomavirus (HPV) would also help protect their female partners against developing cervical cancer from the sexually transmitted infection did not increase their interest in getting the vaccine, according to a new study.

Stem Cells Cultured On Contact Lens Restore Sight In Patients With Blinding Corneal Disease Posted: 05 Jun 2009 08:00 AM PDT In a world-first breakthrough, medical researchers have used stem cells cultured on a simple contact lens to restore sight to sufferers of blinding corneal disease. Sight was significantly improved within weeks of the procedure, which is simple, inexpensive and requires a minimal hospital stay.

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