Brightsurf Science News & Current Events

May 05, 2013
Childhood disability rate jumps 16 percent over past decade
More children today have a disability than a decade ago, and the greatest increase is among kids in higher-income families, according to a study to be presented Sunday, May 5, at the Pediatric Academic Societies annual meeting in Washington, DC.

Improving materials that convert heat to electricity and vice-versa
Thermoelectric materials can be used to turn waste heat into electricity or to provide refrigeration without any liquid coolants, and a research team from the University of Michigan has found a way to nearly double the efficiency of a particular class of them that's made with organic semiconductors.

Effect of different oxygen saturation levels on death or disability in extremely preterm infants
In a randomized trial performed to help resolve the uncertainty about the optimal oxygen saturation therapy in extremely preterm infants, researchers found that targeting saturations of 85 percent to 89 percent compared with 91 percent to 95 percent had no significant effect on the rate of death or disability at 18 months, according to a study published by JAMA.

NIH study provides clarity on supplements for protection against blinding eye disease
Adding omega-3 fatty acids did not improve a combination of nutritional supplements commonly recommended for treating age-related macular degeneration (AMD), a major cause of vision loss among older Americans, according to a study from NIH.

More hurricanes for Hawaii?
Hawaii, fortunately, has been largely free from hurricanes, only two having made landfall in more than 30 years.

International conference in Cameroon to address future of world's second largest rainforest
As many as 400 people are expected to attend a two-day policy and science conference next month in Cameroon to discuss critical issues facing the sustainable management of Central Africa's forests.

Media advisory: Brain cell injections may quiet epileptic seizures
NIH-funded researchers at the University of California at San Francisco used a mouse model of epilepsy to show that transplanting new born inhibitory nerve cells can quiet seizures.

Study evaluates effect of different supplements on reducing risk of progression to advanced AMD
In a large, multicenter, randomized clinical trial that included persons at high risk for progression to advanced age-related macular degeneration (AMD), adding the carotenoids lutein and zeaxanthin, the omega-3 fatty acids DHA and EPA, or both to a formulation of antioxidant vitamins and minerals that has shown effectiveness in reducing risk did not further reduce risk of progression to advanced AMD, according to a study published by JAMA.

Epilepsy cured in mice using brain cells
Epilepsy that does not respond to drugs can be halted in adult mice by transplanting a specific type of cell into the brain, UC San Francisco researchers have discovered, raising hope that a similar treatment might work in severe forms of human epilepsy.

Cyberbullying rampant among high school students
Step into a class of 30 high school students and look around.

A new cost-effective genome assembly process
Genome assembly, the molecular equivalent of trying to put together a multi-million piece jigsaw puzzle without knowing what the picture on the cover of the box is, remains challenging due to the very large number of very small pieces, which must be assembled using current approaches.

Genome sequencing provides unprecedented insight into causes of pneumococcal disease
A new study led by researchers from Harvard School of Public Health and the Wellcome Trust Sanger Institute in the UK has, for the first time, used genome sequencing technology to track the changes in a bacterial population following the introduction of a vaccine.

Scientists alarmed by rapid spread of Brown Streak Disease in cassava
Cassava experts are reporting new outbreaks and the increased spread of Cassava Brown Streak Disease or CBSD, warning that the rapidly proliferating plant virus could cause a 50 percent drop in production of a crop that provides a significant source of food and income for 300 million Africans.

Organic vapors affect clouds leading to previously unidentified climate cooling
University of Manchester scientists, writing in the journal Nature Geoscience, have shown that natural emissions and man-made pollutants can both have an unexpected cooling effect on the world's climate by making clouds brighter.

Microwave oven cooks up solar cell material
University of Utah metallurgists used an old microwave oven to produce a nanocrystal semiconductor rapidly using cheap, abundant and less toxic metals than other semiconductors.

Magnesium may be as important to kids' bone health as calcium
Parents are advised to make sure their children drink milk and eat other calcium-rich foods to build strong bones.

Discovery helps show how breast cancer spreads
Researchers at Washington University School of Medicine in St. Louis have discovered why breast cancer patients with dense breasts are more likely than others to develop aggressive tumors that spread.

Discovery may help prevent chemotherapy-induced anemia
Researchers at Albert Einstein College of Medicine have discovered that chemotherapy induces an insidious type of nerve damage inside bone marrow that can cause delays in recovery after bone marrow transplantation.

Portable device provides rapid, accurate diagnosis of tuberculosis, other bacterial infections
A handheld diagnostic device that Massachusetts General Hospital investigators first developed to diagnose cancer has been adapted to rapidly diagnose tuberculosis and other important infectious bacteria.

Preterm infants may need 800 IU of vitamin D3 per day
Preterm infants may need to be given 800 international units of vitamin D a day to ensure they develop strong bones, according to a study to be presented Sunday, May 5, at the Pediatric Academic Societies annual meeting in Washington, DC.

Some prostate cancer patients more likely to die after weekend ER visits
Patients with prostate cancer that has metastasized, or spread, to other parts of the body face a significantly higher risk of dying when visiting a hospital emergency department on the weekend instead of on a weekday, according to researchers at Henry Ford Hospital in Detroit.

Protein complex may play role in preventing many forms of cancer, Stanford study shows
Researchers at the Stanford University School of Medicine have identified a group of proteins that are mutated in about one-fifth of all human cancers.

Study adds to evidence that cigarettes are gateway to marijuana
Teen smokers who rationalize their use of cigarettes by saying,

Assembly of a protein degradation machine could lead to treatments in cancer, neurological diseases
Scientists discovered new details about an assembly intricate process in cells and the proteins named chaperones that controls it.

As climate changes, boreal forests to shift north and relinquish more carbon than expected
New Berkeley Lab research maps how Earth's myriad climates -- and the ecosystems that depend on them -- could move from one area to another as global temperatures rise.

Hospital surgical volume should be considered when judging value of procedures
The volume of cases performed at an institution each year has a direct effect on the outcome of surgical procedures, and should always be considered when looking at the benefits of a technique, according to a team of researchers at Henry Ford Hospital in Detroit.

Camaraderie of sports teams may deter bullying, violence
As schools around the country look for ways to reduce violence and bullying, they may want to consider encouraging students to participate in team sports, according to a study to be presented Sunday, May 5, at the Pediatric Academic Societies annual meeting in Washington, DC.

Divide and define: Clues to understanding how stem cells produce different kinds of cells
The human body contains trillions of cells, all derived from a single cell, or zygote, made by the fusion of an egg and a sperm.
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