ScienceDaily Top Science Headlines
for Saturday, August 6, 2011
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Females can place limits on evolution of attractive features in males, research shows (August 5, 2011) -- Female cognitive ability can limit how melodious or handsome males become over evolutionary time, biologists have observed. Males across the animal world have evolved elaborate traits to attract females, from huge peacock tails to complex bird songs and frog calls. But what keeps them from getting more colorful feathers, longer tails, or more melodious songs? ... > full story
Human-made fat may limit damage to heart attack victims (August 5, 2011) -- A human-made fat called Intralipid, which is currently used as a component of intravenous nutrition and to treat rare overdoses of local anesthetics, may also offer protection for patients suffering from heart attacks. ... > full story
New field of hydrothermal vents discovered along the mid-Atlantic ridge (August 5, 2011) -- Oceanographers have discovered a previously uncharted field of hydrothermal vents along the mid-Atlantic ridge – the first to be explored north of the Azores. Researchers studied an area 3,000 meters below the surface of the sea using a remotely operated vehicle. ... > full story
Small molecules hit it big: New therapeutic approaches against viruses, bacteria, and cancer (August 5, 2011) -- Scientists have developed small molecules that inhibit the internalization of important signaling molecules but also of pathogenic organisms such as the immunodeficiency virus (HIV) and bacteria into cells. These compounds inhibit the function of the cellular scaffold protein clathrin und could thereby serve as a starting point for novel therapeutic approaches for the treatment of cancer, viral or bacterial infections, or neurological disorders. ... > full story
Spotting weaknesses in solid wood (August 5, 2011) -- Is there a hairline crack in the oak table? Was the window frame glued badly? Ultrasound thermography can reliably identify material defects during the production of wooden items. This allows rejects to be caught quickly and eliminated, and faulty goods to be repaired in good time. ... > full story
Neuroscientists identify how the brain remembers what happens and when (August 5, 2011) -- Neuroscientists have identified the parts of the brain we use to remember the timing of events within an episode. The study enhances our understanding of how memories are processed and provides a potential roadmap for addressing memory-related afflictions. ... > full story
NASA's Juno spacecraft launches to Jupiter (August 5, 2011) -- NASA's solar-powered Juno spacecraft lifted off from Cape Canaveral Air Force Station in Florida on Aug. 5, 2011 to begin a five-year journey to Jupiter. Juno's detailed study of the largest planet in our solar system will help reveal Jupiter's origin and evolution. As the archetype of giant gas planets, Jupiter can help scientists understand the origin of our solar system and learn more about planetary systems around other stars. ... > full story
Innate cells shown to form immunological 'memory' and protect against viral infection (August 5, 2011) -- Researchers have demonstrated that cells of the innate immune system are capable of "memory", and of mounting rapid protection to an otherwise lethal dose of live vaccinia virus. The study challenges previous thought that only B cells and T cells can store memory to ward off future infection. The finding has potentially significant consequences for the design of future vaccines, particularly for HIV. ... > full story
Mars' northern polar regions in transition (August 5, 2011) -- A newly released image from the European Space Agency's Mars Express shows the north pole of Mars during the red planet’s summer solstice. All the carbon dioxide ice has gone, leaving just a bright cap of water ice. ... > full story
Molecular mechanisms offer hope for new pain treatments (August 5, 2011) -- By working with individuals suffering from a severe disorder that causes sensory neurons to degenerate, researchers have discovered how a specific genetic mutation causes their patients' condition, which in turn has revealed more information about the mechanisms in our bodies which enable us to sense pain. ... > full story
Better desalination technology key to solving world's water shortage (August 5, 2011) -- Over one-third of the world's population already lives in areas struggling to keep up with the demand for fresh water. By 2025, that number will nearly double. A new Yale University study argues that seawater desalination should play an important role in helping combat worldwide fresh water shortages -- once conservation, reuse and other methods have been exhausted -- and provides insight into how desalination technology can be made more affordable and energy efficient. ... > full story
Gazpacho ingredients lose vitamin C during preparation (August 5, 2011) -- In summer, more dishes like gazpacho –- a cold soup containing raw vegetables, bread, olive oil and vinegar –- are consumed. A new study has revealed that ingredients’ vitamin C content as well as other organic acids is lower in the resulting mixture, meaning that it should be eaten immediately after preparation. ... > full story
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