ScienceDaily Top Science Headlines
for Sunday, August 7, 2011
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What shapes a bone? Diet and genetics dictate adult jaw shape (August 6, 2011) -- Researchers found that use over time and not just genetics informs the structure of jaw bones in human populations. The researchers say these findings may be used to predict the diet of an ancient population, even if little evidence exists in the fossil record. It can also make it easier for scientists to pinpoint the genetic relationship between fossils. ... > full story
Potential new eye tumor treatment discovered (August 6, 2011) -- New research demonstrates that a specific small segment of RNA could play a key role in the growth of a type of malignant childhood eye tumor called retinoblastoma. The tumor is associated with mutations of a protein called Rb, which is also involved with other types of cancers, including lung, brain, breast and bone. Their work could result in a new therapeutic target. ... > full story
Sea lampreys fear the smell of death: Repellant could be key to better controlling destructive invasive species (August 6, 2011) -- A repellant for sea lampreys could be the key to better controlling one of the most destructive invasive species in the Great Lakes, according to new research. Scientists have seen the effect alarm cues have on lampreys. When scents from dead sea lampreys are poured into a tank of live ones, the lampreys' efforts to escape are dramatic. In the past, these reactions were simply dismissed as novel. But researchers now see this reaction as a potential game changer. ... > full story
Sentinel node biopsy safe, effective in head and neck melanomas, study finds (August 6, 2011) -- A common technique for determining whether melanoma has spread can be used safely and effectively even in tumors from the head and neck area, according to a new study. ... > full story
Ocean probes to help refine climate change forecasting (August 6, 2011) -- A researcher has opened a new window to understanding how the ocean impacts climate change. She spent four years collecting samples from floating sediment traps in the San Pedro Basin off the Los Angeles coast, giving scientists a peek at how much carbon is locked up in the ocean and where it comes from. ... > full story
Mindless eating: Losing weight without thinking (August 6, 2011) -- Dieters may not need as much willpower as they think, if they make simple changes in their surroundings that can result in eating healthier without a second thought, said a consumer psychologist. ... > full story
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
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