ScienceDaily Top Science Headlines
for Sunday, September 7, 2008
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Encounter Of A Different Kind: Rosetta Observes Asteroid At Close Quarters (September 6, 2008) -- The European Space Agency's comet chaser, Rosetta, has flown by a small body in the main asteroid belt, asteroid Steins, collecting a wealth of information about this rare type of minor Solar System body. ... > full story
Chandelier Cells Unveil Human Cognition (September 6, 2008) -- What is it that distinguishes humans from other mammals? The answer to this question lies in the neocortex -- the part of the brain responsible for sensory perceptions, conscious thought and language. Humans have a considerably larger neocortex than other mammals, making it an ideal subject for the research of higher cognition. Scientists now reveal new insights into the mysteries of neocortex organization and function. ... > full story
How New Helium Ion Microscope Measures Up (September 6, 2008) -- Researchers are probing the newest microscope technology to further improve measurement accuracy at the nanoscale -- a critical capability for setting standards and improving production in the semiconductor and nanomanufacturing industries. ... > full story
Arteries From Distinct Regions Of The Body Have Unique Immune Functions (September 6, 2008) -- Arteries play an active role in the immune system by sensing infection and injury. They collect information about invaders through dendritic cells embedded in their walls. Arteries supplying blood to distinct parts of the body specialize in recognizing different bacterial signals. ... > full story
Technology Users Are Failing To Take Adequate Steps To Protect Their Digital Privacy (September 6, 2008) -- Technology users are failing to take adequate steps to protect their privacy in digital society. In the face of technology that will soon be able not only to track an individual’s movements but predict them too, people are far too relaxed about protecting their privacy, according to one social psychologist. ... > full story
Action As A Goal May Be Too Broad, New Research Suggests (September 6, 2008) -- A series of experiments suggest that society's emphasis on action over inaction may lead to unforeseen consequences. The findings could help understand how common words used in everyday life may influence conditions such as attention deficit hyperactivity disorder and bipolar disorder. ... > full story
Old Before Their Time? Aging Rate In Flies Twice As Fast In Wild Than In Laboratory (September 6, 2008) -- Conventional wisdom suggests that stress accelerates aging -- but is it really true? Evolutionary studies of aging use short-lived animals under laboratory conditions -- constant temperature and humidity, no parasites, superabundant food. Researchers identified individual stilt-legged flies in their harsh natural environments while simultaneously monitoring their cousins in the lab. In males, the rate of aging was as least two times greater in the wild. For both sexes, life in the wild was dramatically shorter. More study of how environment affects gene expression is needed. ... > full story
Unsuccessful Drug Against Anxiety Opens A Novel Gateway For The Treatment Of Cancer (September 6, 2008) -- An unsatisfying drug for anxiety reveals to scientists a promising novel anti-cancer drug target. Cancer cells have multiple ways to avoid apoptosis, programmed cell death the means by which organisms deal with defective cells. One defense is to produce quantities of phosphatic acid, a phospholipid constituent of cellular membranes. ... > full story
Giant Furnace Opens To Reveal 'Perfect' LSST Mirror Blank (September 6, 2008) -- The single-piece primary and tertiary mirror blank cast for the LSST is "perfect", say project astronomers and engineers. The LSST, or Large Synoptic Survey Telescope, a large survey telescope being built in northern Chile, requires three large mirrors to give crisp images over a record large field of view. The two largest of these mirrors are concentric and fit neatly onto a single mirror blank. ... > full story
Virology: How Does Herpes Simplex Virus Cause Inflammation Of The Brain? (September 6, 2008) -- Worldwide, about 80% of young adults are infected with herpes simplex virus type 1 (HSV-1). The most common symptom of infection is a cold sore, but in some individuals the virus can also cause life-threatening inflammation of the brain (encephalitis); 70% of individuals who do not get treatment for this condition die. ... > full story
Disruption-free Videos (September 6, 2008) -- Standardized video coding techniques still have their snags – digitally transmitted images are not always disruption-free. An extension of the H.264/AVC coding format allows to protect the most important data packets to ensure they arrive safely at the receiver. ... > full story
Should Nurses Replace GPs As Frontline Providers Of Primary Care? (September 6, 2008) -- Should nurses be the frontline providers of primary care, taking the place of general practitioners as the first point of patient contact? Two experts debate the issue. Nurses can deliver as high quality care as general practitioners in most areas of general practice including preventive health care, the management of long term conditions, and first contact care for people with minor illness, according to one expert. ... > full story
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