ScienceDaily Top Science Headlines
for Sunday, August 3, 2008
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Newly Discovered Monkey Is Threatened With Extinction (August 2, 2008) -- Just three years after it was discovered, a new species of monkey is threatened with extinction according to the Wildlife Conservation Society, which recently published the first-ever census of the endangered primate. Africa's 'kipunji' hovers at 1,100 individuals. ... > full story
How Some Bacteria May Steal Iron From Their Human Hosts (August 2, 2008) -- While humans obtain iron primarily through the food they eat, bacteria have evolved complex and diverse mechanisms to allow them access to iron. Scientists have discovered that some bacteria are equipped with a gene that enables them to harvest iron from their environment or human host in a unique and energy efficient manner.This discovery could provide researchers with new ways to target such diseases as tuberculosis. ... > full story
Traumatic Response To Bad Memories Can Be Minimized (August 2, 2008) -- Researchers have identified the brain mechanism that switches off traumatic feelings associated with bad memories, a finding that could lead to the development of drugs to treat panic disorders. ... > full story
Simple Lab Test For Bone Disease Linked To Risk Of Death In Dialysis Patients (August 2, 2008) -- Among patients receiving dialysis for chronic kidney disease, high levels of alkaline phosphatase -- a routinely measured laboratory marker of bone disease -- may signal an increased risk of death, reports a new study. ... > full story
Functional Nanoribbons Carved Using Super-heated, Nano-sized Particles Of Iron (August 2, 2008) -- Physicists at the University of Pennsylvania have demonstrated a new method by which graphene films can be etched along flawless, crystallographic axes using hot nanoparticles, a technique that results in precise, macroscopic length ribbons of graphene. The advance could enable atomically precise and simple construction of integrated circuits from single graphene sheets with a wide range of technological applications. ... > full story
Biological Fathers Not Necessarily The Best, Social Dads Parent Well Too (August 2, 2008) -- Men who marry a child's mother parent just as well, if not better than biological fathers. A new study examined differences in the parenting practices of four groups of fathers according to whether they were biologically related to a child and whether they were married to the child's mother. ... > full story
In Lean Times, Flies Can't Survive Without Their Sense Of Smell (August 2, 2008) -- Working with fruit flies reared under laboratory conditions, researchers show that in times of plenty, the sense of smell is irrelevant for survival. But when food is scarce, a well functioning nose can mean the difference between life and death. ... > full story
New Immune Disease Identified (August 2, 2008) -- Medical researchers have identified a strange disease in which the innate immune system works in an irregular fashion. A new study describes 9 cases of children severely infected by common bacteria, specifically pneumococci and staphylococci, who do not react to the infection with an inflammatory response; that is, they have no fever and there is no detected increase in the number of white blood cells in the blood. By the time they see a doctor, the infection is widespread. In fact, 3 of the children, aged between 1 and 11 months, died. ... > full story
Olfactory Fine-tuning Helps Fruit Flies Find Their Mates (August 2, 2008) -- Fruit flies fine-tune their olfactory systems by recalibrating the sensitivity of different odor channels in response to changing concentrations of environmental cues, a new study has shown. Disable this calibration system, and flies have trouble finding a mate, the researchers have found. The fly nervous system can dampen its response to intense smells to prevent strong signals from overloading the circuits, they report in the July 31 issue of Neuron. ... > full story
New Method Assesses Risks For Heart Failure Patients (August 2, 2008) -- Data from 260 hospitals across the United States has led to the creation of a new method for physicians to more accurately determine the severity of heart failure in patients upon hospital admission, with a goal of reducing in-hospital mortality and more quickly identifying triage methods and treatment decisions. ... > full story
Relays Pass Baton To Next-gen Broadband Networks (August 2, 2008) -- The ideal of affordable wireless broadband for all, and as an added bonus better quality services in urban areas, is a lot closer thanks to recent advances made by European researchers. ... > full story
Communication Gap Exists Between Seniors And Surgeons, Study Finds (August 2, 2008) -- In a study published in the July 2008 issue of the Journal of Bone and Joint Surgery, Richard M. Frankel, Ph.D., of the Indiana University School of Medicine, and colleagues report that older patients and their surgeons do not communicate effectively when exploring surgical treatment options. ... > full story
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