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Latest news entries via source sciencedaily: latest science news
Polarized Light Leads Animals Astray: 'Ecological Traps' Cause Animal Behaviors That Can Lead To Death
Human-made light sources can alter natural light cycles, causing animals that rely on light cues to make mistakes when moving through their environment. In the journal Frontiers in Ecology and the Environment, a collaboration of ecologists, biologists and biophysicists has now shown that in addition to direct light, cues from polarized light can trigger animal behaviors leading to injury and often death.-
Journey Of A Green Turtle From Indonesia Into Australian Opens Mystery Of 'Oceanic Superhighway'
The remarkable journey of a green turtle from Indonesia into Australian waters is helping conservationists to track the migratory route of this species to the Kimberley-Pilbara coast - one of the few relatively pristine coastal areas left on Earth.
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Black Holes Lead Galaxy Growth
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'Scrawny' Gene Keeps Stem Cells Healthy
Stem cells are the body's primal cells, retaining the youthful ability to develop into more specialized types of cells over many cycles of cell division. How do they do it? Scientists have identified a gene, scrawny, that appears to be a key factor in keeping a variety of stem cells in their undifferentiated state. Understanding how stem cells maintain their potency has implications for basic biology and also for medical applications.
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Implantable Defibrillators Lower Risk Of Death In Older Heart Patients
Implantable cardioverter defibrillators can improve survival in patients with heart damage -- even those in their 70s -- according to new research.
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Traditional Risk Assessment Tools Do Not Accurately Predict Coronary Heart Disease
The Framingham and National Cholesterol Education Program tools do not accurately predict coronary heart disease, according to a new study.
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Cassiopeia A Comes Alive Across Time And Space
Two new efforts have taken a famous supernova remnant from the static to the dynamic. A new movie of data from NASA's Chandra X-ray Observatory shows changes in time never seen before in this type of object. A separate team has produced a dramatic 3-D visualization of the same remnant.
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Scientists See Brain Aging Before Symptoms Appear
Scientists have used innovative brain-scan technology along with patient-specific information on Alzheimer's disease risk, to help diagnose brain aging, often before symptoms appear.
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Gene Linked To Inherited Form Of Fatal Lung Disease Identified
Researchers have determined that a mutation in a gene known for its role in defending the lungs against invading pathogens is responsible for some inherited cases of a lethal lung disease affecting older adults. The same mutation may also be associated with lung cancer, the researchers said.
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Timetable For Puget Sound Restoration Suffers Setback
The slow natural restoration of hazardous sediments mired beneath the Puget Sound is progressing, but researchers warn that this recovery process may take 10 to 30 years longer than first predicted, because of increased urban growth and its associated untreated runoff.
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