 Ironing out the details of the Earth's core
 20.12.2011 16:25  5 views  0 comments
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Identifying the composition of the earth's core is key to understanding how our planet formed and the current behavior of its interior. While it has been known for many years that iron is the main element in the core, many questions have remained about just how iron behaves under the conditions found deep in the earth. Now, a team led by mineral-physics researchers has homed in on those behaviors by conducting extremely high-pressure experiments on the element. Read more »
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Hellbender salamander study seeks answers for global amphibian decline
20.12.2011 2:39 0 views 0 comments
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A new study on the endangered Ozark Hellbender giant salamander is the first to detail its skin microbes, the bacteria and fungi that defend against pathogens. Read more »
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Pet kidney injuries are similar to human kidney injuries
20.12.2011 2:39 2 views 0 comments
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For pets suffering critical illness or injury, researchers have found that even tiny increases of creatinine in blood also could indicate acute kidney damage. Using human blood measurement guidelines for acute kidney injuries, the researchers believe they can now help pet owners better know the severity of their animals' illness. Read more »
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Researchers measure nanometer scale temperature
20.12.2011 2:39 0 views 0 comments
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Researchers have developed a new kind of electro-thermal nanoprobe that can independently control voltage and temperature at a nanometer-scale point contact. It can also measure the temperature-dependent voltage at a nanometer-scale point contact. Read more »
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Discovery may lead to safer treatments for asthma, allergies and arthritis
20.12.2011 2:39 3 views 0 comments
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Scientists have discovered a missing link between the body's biological clock and sugar metabolism system, a finding that may help avoid the serious side effects of drugs used for treating asthma, allergies and arthritis. Read more »
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Middle-age blood pressure changes affect lifetime heart disease, stroke risk
20.12.2011 2:38 2 views 0 comments
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Changes in blood pressure during middle age can affect lifetime risk for heart disease and stroke. People who maintain or reduce their blood pressure to normal levels during middle age have the lowest lifetime risk of cardiovascular disease, while those with an increase in blood pressure have the highest risk. Age and duration of blood pressure changes can help determine individualized lifetime risk for -- and prevention of -- cardiovascular disease. Read more »
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Snipping key nerves may help life threatening heart rhythms, study suggests
20.12.2011 2:38 1 views 0 comments
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According to a new study, cutting key nerves to the heart that control the adrenaline-driven "flight or fight" stress response may help alleviate life-threatening ventricular arrhythmias. This is one of the first studies to assess the impact of performing this type of surgery on both sides of the heart to control arrhythmias, called a bilateral cardiac sympathetic denervation. Read more »
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Novel use of drug saves children from deadly E. coli bacteria disease
20.12.2011 2:35 4 views 0 comments
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A physician saved the life of a child and, by doing so, became the first to find a new use for a drug in the fight against deadly E. coli bacteria. In fact, after a little girl was admitted to hospital to treat severe complications, her physician, running out of options, thought about using the drug eculizumab, which is usually prescribed for another disorder with similar symptoms. Her intuition paid off and the little girl survived. The dramatic improvement experienced by the young patient and two others is explained in a new article. Read more »
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Research could improve laser-manufacturing technique
19.12.2011 21:27 3 views 0 comments
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Engineers have discovered details about the behavior of ultrafast laser pulses that may lead to new applications in manufacturing, diagnostics and other research. Read more »
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Cockroach hookup signal could benefit endangered woodpecker
19.12.2011 21:25 3 views 0 comments
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A discovery of the unique chemical composition of a cockroach signal -- a "Let's hook up" sex pheromone emitted by certain female wood cockroaches to entice potential mates -- could have far-ranging benefits, including improved conservation of an endangered woodpecker. Read more »
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A major step forward towards drought tolerance in crops
19.12.2011 21:25 2 views 0 comments
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When a plant encounters drought, it does its best to cope with this stress by activating a set of protein molecules called receptors. Plant cell biologists have discovered how to rewire this cellular machinery to heighten the plants' stress response -- a finding that can be used to engineer crops to give them a better shot at surviving and displaying increased yield under drought conditions. Read more »
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One trait has huge impact on whether alcohol makes you aggressive
19.12.2011 19:52 2 views 0 comments
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Drinking enough alcohol to become intoxicated increases aggression significantly in people who have one particular personality trait, according to new research. But people without that trait don't get any more aggressive when drunk than they would when they're sober. That trait is the ability to consider the future consequences of current actions. Read more »
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Hospitals invest heavily in new heart attack care programs but fail to improve access, study suggests
19.12.2011 19:52 0 views 0 comments
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Researchers have found a 44 percent increase since 2001 in the number of hospitals that offer definitive emergency care to patients with heart attack, but only a one percent increase in access to that care. Read more »
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Quantum computing has applications in magnetic imaging
19.12.2011 19:52 1 views 0 comments
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Quantum computing -- considered the powerhouse of computational tasks -- may have applications in areas outside of pure electronics, according to experts. Read more »
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Babies remember even as they seem to forget
19.12.2011 19:52 3 views 0 comments
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Fifteen years ago, textbooks on human development stated that babies of six months of age or younger had no sense of "object permanence" -- the psychological term that describes an infant's belief that an object still exists even when it is out of sight. That meant that if mom or dad wasn't in the same room with junior, junior didn't have the sense that his parents were still in the world. These days, psychologists know that isn't true: for young babies, out of sight doesn't automatically mean out of mind. But how much do babies remember about the world around them, and what details do their brains need to absorb in order to help them keep track of those things? Babies may not remember what they saw, but they remember that they saw something. Read more »
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Gene therapy for ears
19.12.2011 19:50 4 views 0 comments
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Gene therapy may someday in the future replace the use of implants in deaf people. The carrier for this gene medicine may be derived from shrimp shells. Read more »
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Tipping plant growth
19.12.2011 19:50 3 views 0 comments
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The growth of multicellular organisms is fueled not only by cell division but also by cell growth. Normally cells enlarge all over the surface. However, in many organisms, there are also specialized cells that grow only at their tip. How the necessary materials are delivered to the growing tip, is largely unknown. A new study now suggests that tip growth is not mediated by targeted trafficking to the growing site of the cell surface but rather depends on a specific recycling pathway. Read more »
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Data-driven tools cast geographical patterns of rainfall extremes in new light
19.12.2011 17:22 1 views 0 comments
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Using statistical analysis methods to examine rainfall extremes in India, a team of researchers has made a discovery that resolves an ongoing debate and offers new insights. Read more »
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New kind of metal in the deep Earth: Iron oxide undergoes transition under intense pressures and temperatures
19.12.2011 17:22 1 views 0 comments
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The intense pressures and temperatures in Earth's deep interior squeeze atoms and electrons so close they interact differently. New experiments and supercomputer computations have revealed that iron oxide undergoes a new kind of transition under deep Earth conditions. It is a component of the second most abundant mineral at Earth's lower mantle, ferropericlase. The finding could alter our understanding of deep Earth dynamics and the behavior of the protective magnetic field, which shields our planet. Read more »
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Gender bias of prospective parents revealed
19.12.2011 17:22 4 views 0 comments
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A new study has found that when people think about having children, men want boys and women want girls. Read more »
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