June 29, 2009 Science Current EventsRating attractiveness: Study finds consensus among men, not women Hot or not? Men agree on the answer. Women don't. There is much more consensus among men about whom they find attractive than there is among women, according to a new study by Wake Forest University psychologist Dustin Wood. Study shows 1 in 25 deaths worldwide attributable to alcohol Research from Canada's own Centre for Addiction and Mental Health (CAMH) featured in this week's edition of the Lancet shows that worldwide, 1 in 25 deaths are directly attributable to alcohol consumption. Site for alcohol's action in the brain discovered lcohol's inebriating effects are familiar to everyone. But the molecular details of alcohol's impact on brain activity remain a mystery. Scientists create first electronic quantum processor A team led by Yale University researchers has created the first rudimentary solid-state quantum processor, taking another step toward the ultimate dream of building a quantum computer. Singapore nanotechnology combats fatal brain infections Doctors may get a new arsenal for meningitis treatment and the war on drug-resistant bacteria and fungal infections with novel peptide nanoparticles developed by scientists at the Institute of Bioengineering and Nanotechnology (IBN) of Singapore and reported in Nature Nanotechnology. Xie Lab uncovers molecular machinery related to stem cell fate The Stowers Institute's Xie Lab has revealed how the BAM protein affects germline stem cell differentiation and how it is involved in regulating the quality of stem cells through intercellular competition. Researchers pinpoint a new enemy for tumor-suppressor p53 Researchers at The University of Texas M. D. Anderson Cancer Center have identified a protein that marks the tumor suppressor p53 for destruction, providing a potential new avenue for restoring p53 in cancer cells. Hepatic encephalopathy and prehepatic portal hypertension rat model A research article to be published June 21, 2009 in the World Journal of Gastroenterology addresses this question. The research team lead by Dr. Gabriela Beatriz Acosta, observed that the activity of GS was increased in the hippocampus in PH rats. Language change can be traced using gigantic text archives Historical collections that include everything ever written in a dozen American and British newspapers since they started are now available electronically. Further gene mutations linked to autism risk Pieces in the complex autism inheritance puzzle are emerging in the latest study from a research team including geneticists from the University of Pennsylvania School of Medicine and The Children's Hospital of Philadelphia (CHOP). Making nanoparticles in artificial cells Two new construction manuals are now available for the world's smallest lamps. Based on these protocols, scientists from the Max Planck Institute of Colloids and Interfaces have tailor-made nanoparticles that can be used as position lights on cell proteins and, possibly in the future as well, as light sources for display screens or for optical information technology. For Women With PCOS, Acupuncture And Exercise May Bring Relief, Reduce Risks Exercise and electro-acupuncture treatments can reduce sympathetic nerve activity in women with polycystic ovarian syndrome (PCOS), according to a new study. New trigger for chronic inflammation in rheumatoid arthritis discovered A signal molecule made by the human body that triggers the immune system into action may be important in rheumatoid arthritis. Tryptophan deficiency may underlie quinine side effects Researchers have found that the anti-malarial drug quinine can block a cell's ability to take up the essential amino acid tryptophan, a discovery that may explain many of the adverse side-effects associated with quinine. A potent and selective anti-tumor agent on human gastric cancer A research article to be published on June 21, 2009 in the World Journal of Gastroenterology addresses this question. Ultrasensitive detector promises improved treatment of viral respiratory infections A Vanderbilt chemist and a biomedical engineer have teamed up to develop a respiratory virus detector that is sensitive enough to detect an infection at an early stage, takes only a few minutes to return a result and is simple enough to be performed in a pediatrician's office. June 25, 2009 A Trio of Signals Converge to Induce Liver and Pancreas Cell Development in the Embryo Understanding the molecular signals that guide early cells in the embryo to develop into different organs provides insight into ways that tissues regenerate and how stem cells can be used for new therapies. Natural-born divers and the molecular traces of evolution An aquatic lifestyle imposes serious demands for the organism, and this is true even for the tiniest molecules that form our body. Ozone depletes oil seed rape productivity High ozone conditions cause a 30% decrease in yield and an increase in the concentration of a group of toxic compounds within oilseed rape plants. Intestinal cells surprisingly active in pursuit of nutrition and defense Every cell lining the small intestine bristles with thousands of tightly packed microvilli that project into the gut lumen, forming a brush border that absorbs nutrients and protects the body from intestinal bacteria. Plant protein 'doorkeepers' block invading microbes, study finds A group of plant proteins that "shut the door" on bacteria that would otherwise infect the plant's leaves has been identified for the first time by a team of researchers in Denmark, at the University of California, Davis, and at UC Berkeley. New crops needed for new climate Global food security in a changing climate depends on the nutritional value and yield of staple food crops. Researchers at Monash University in Victoria, Australia have found an increase in toxic compounds, a decrease in protein content and a decreased yield in plants grown under high CO2 and drought conditions. Melon research sweetened with DNA sequence People smell them, thump them and eyeball their shape. But ultimately, it's sweetness and a sense of healthy eating that lands a melon in a shopper's cart. Report: Prostate cancer screening has yet to prove its worth The recent release of two large randomized trials suggests that if there is a benefit of screening, it is, at best, small. Complications early in pregnancy or in previous pregnancies adversely affect existing or subsequent pregnancies Complications in early pregnancy or in previous pregnancies can predict the likelihood of further problems in current or subsequent pregnancies, according to research carried out by an international group of experts. Reading the brain without poking it Experimental devices that read brain signals have helped paralyzed people use computers and may let amputees control bionic limbs. But existing devices use tiny electrodes that poke into the brain. Enzyme fights mutated protein in inherited Parkinson's disease An enzyme that naturally occurs in the brain helps destroy the mutated protein that is the most common cause of inherited Parkinson's disease, researchers at UT Southwestern Medical Center have found. Insulin analogue glargine possibly increases cancer risk The risk of cancer possibly increases if patients with diabetes use the long-acting insulin analogue glargine instead of human insulin. Teens who believe they'll die young are more likely to engage in risky behavior, University of Minnesota research finds University of Minnesota Medical School researcher Iris Borowsky, M.D., Ph.D., and colleagues found that one in seven adolescents believe that it is highly likely that they will die before age 35, and this belief predicted that the adolescents' would engage in risky behaviors. Race origins and health disparites Much is often said about the glaring statistics showing that some racial and ethnic minorities face greater risks than whites when it comes to health. Researchers see evidence of memory in the songbird brain When a zebra finch hears a new song from a member of its own species, the experience changes gene expression in its brain in unexpected ways, researchers report. The science of hammering When it comes to something as simple as hammering a nail, some people are naturals and get the job done after a few clean, sharp strokes of the hammer, whereas for the rest of us a similar challenge is likely to end up with the nail bent in the middle, a sore thumb and a wounded pride. |
||||||||
|
||||||||