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| Archaeologists Find Earliest Known Domestic Horses: Harnessed and Milked Posted: 08 Mar 2009 08:00 AM PDT Archaeologists have uncovered the earliest known evidence of horses being domesticated by humans. The discovery suggests that horses were both ridden and milked. The findings could point to the very beginnings of horse domestication and the origins of the horse breeds we know today. |
| Drug Blocks Two Of World's Deadliest Emerging Viruses Posted: 08 Mar 2009 08:00 AM PDT Two highly lethal viruses that have emerged in recent outbreaks are susceptible to chloroquine, an established drug used to prevent and treat malaria, according to a new basic science study in the Journal of Virology. |
| Geeks May Be Chic, But Negative Nerd Stereotype Still Exists, Professor Says Posted: 08 Mar 2009 08:00 AM PDT Despite the increased popularity of geek culture and the ubiquity of computers, the geek's close cousin, the nerd, still suffers from a negative stereotype in popular culture, according to new research. |
| Worm-and-mouse Tale: B Cells Deserve More Respect Posted: 08 Mar 2009 08:00 AM PDT By studying how mice fight off infection by intestinal worms -- a condition that affects more than 1 billion people worldwide -- scientists have discovered that the immune system is more versatile than has long been thought. The work with worms is opening a new avenue of exploration in the search for treatments against autoimmune diseases like diabetes and asthma, where the body mistakenly attacks its own tissues. |
| Environmentally-friendly Energy: Sunlight Turns Carbon Dioxide To Methane Posted: 08 Mar 2009 08:00 AM PDT Dual catalysts may be the key to efficiently turning carbon dioxide and water vapor into methane and other hydrocarbons using titania nanotubes and solar power, according to researchers. Burning fossil fuels like oil, gas and coal release large amounts of carbon dioxide, a greenhouse gas, into the atmosphere. Rather than contribute to global climate change, producers could convert carbon dioxide to a wide variety of hydrocarbons, but this makes sense to do only when using solar energy. |
| Safer Methadone Use For Treatment Of Pain And Addiction Posted: 08 Mar 2009 08:00 AM PDT New findings may significantly improve the safety of methadone, a drug widely used to treat cancer pain and addiction to heroin and other opioid drugs. |
| Virus-free Embryonic-like Stem Cells Made From Skin Of Parkinson's Disease Patients Posted: 08 Mar 2009 01:00 AM PST Deploying a method that removes potentially cancer-causing genes, researchers have "reprogrammed" human skin cells from Parkinson's disease patients into an embryonic-stem-cell-like state. Scientists then used these so-called induced pluripotent stem (iPS) cells to create dopamine-producing neurons, the cell type that degenerates in Parkinson's disease patients. This marks first time researchers have generated human iPS cells, successfully removed the potentially problematic reprogramming genes, and seen the cells maintain their embryonic stem-cell-like state. |
| Sudden Collapse Of Healthy Athletes May Be Due To Hereditary Cardiac Disease Posted: 08 Mar 2009 01:00 AM PST When young, apparently healthy athletes suddenly collapse, it can be due to hereditary cardiac disease. Researchers have now discovered a genetic modification that leads to cardiac weakness in an animal model. Just one "false" amino acid can give zebrafish a heart condition. Since the fish have a genetic makeup similar to that of humans, these defects could be critical for humans as well. |
| What Determines The Size Of Giant Dunes? Posted: 08 Mar 2009 01:00 AM PST Physicists have shown that the size of giant dunes is controlled by the depth of the atmospheric convective boundary layer. More specifically, the physicists have shown that such dunes grow through the accumulation of small superimposed dunes, and that their growth is limited by interaction with a part of the atmosphere called the inversion layer, which confines wind flow around the dunes. |
| Muscling In On Type 2 Diabetes Posted: 08 Mar 2009 01:00 AM PST Research by kinesiology investigators has shown that muscle in extremely obese individuals produces large amounts of a protein called myostatin, which normally inhibits muscle growth -- suggesting that for Type 2 diabetics, and the very obese, the task of getting healthy may be more difficult than initially thought. |
| Posted: 08 Mar 2009 01:00 AM PST Geoscientists have discovered the existence of an ocean floor was destroyed 50 to 20 million years ago, proving that New Caledonia and New Zealand are geographically connected. |
| Daytime Sleepiness Provides Red Flag For Cardiovascular Disease Posted: 08 Mar 2009 01:00 AM PST Clinicians should be alert to patients reporting "excessive" day time sleepiness, says the European Society of Cardiology, after a French study found healthy elderly people who regularly report feeling sleepy during the day have a significantly higher risk of dying from cardiovascular disease. |
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