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Health, Science & Technology News

Treating depression in PD patients: New research
The Sanders-Brown Center on Aging has found interesting new information in a study on depression and neuropsychological function in Parkinson's disease.

Stanford researchers rethink 'natural' habitat for wildlife
Protecting wildlife while feeding a world population predicted to reach nine billion by 2050 will require a holistic approach to conservation that considers human-altered landscapes such as farmland, according to Stanford researchers.

MRI, on a molecular scale
A team of scientists, led by professor of physics and of applied physics Amir Yacoby, have developed a magnetic resonance imaging (MRI) system that can produce nano-scale images, and may one day allow researchers to peer into the atomic structure of individual molecules.

Flipping the switch
Harvard researchers have succeeded in creating quantum switches that can be turned on and off using a single photon, an achievement that could pave the way for the creation of highly secure quantum networks.

Religious music brings benefit to seniors' mental health
A new article published online in The Gerontologist reports that among older Christians, listening to religious music is associated with a decrease in anxiety about death and increases in life satisfaction, self-esteem, and sense of control over their lives. In particular, listening to gospel music is associated with a decrease in anxiety about death and an increase in sense of control.

Researchers find 3-million-year-old landscape beneath Greenland ice sheet
Glaciers and ice sheets are commonly thought to work like a belt sander. As they move over the land they scrape off everything -- vegetation, soil and even the top layer of bedrock. So a team of university scientists and a NASA colleague were greatly surprised to discover an ancient tundra landscape preserved under the Greenland ice sheet, below two miles of ice.

Sun emits a mid-level solar flare
The sun emitted a mid-level solar flare, peaking at 9:03 a.m. EDT on April 18, 2014, and NASA's Solar Dynamics Observatory captured images of the event. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground, however -- when intense enough -- they can disturb the atmosphere in the layer where GPS and communications signals travel.

Researchers question published no-till soil organic carbon sequestration rates
For the past 20 years, researchers have published soil organic carbon sequestration rates. Many of the research findings have suggested that soil organic carbon can be sequestered by simply switching from moldboard or conventional tillage systems to no-till systems. However, there is a growing body of research with evidence that no-till systems in corn and soybean rotations without cover crops, small grains, and forages may not be increasing soil organic carbon stocks at the published rates.

Finding turns neuroanatomy on its head
Harvard neuroscientists have made a discovery that turns 160 years of neuroanatomy on its head.Myelin, the electrical insulating material long known to be essential for the fast transmission of impulses along the axons of nerve cells, is not as ubiquitous as thought, according to a new work lead by Professor Paola Arlotta of the Harvard Stem Cell Institute, in collaboration with Professor Jeff Lichtman, of Harvard's Department of Molecular and Cellular Biology.

Plants with dormant seeds give rise to more species
Seeds that sprout as soon as they're planted may be good news for a garden. But in the wild, a plant whose seeds sprouted at the first warm spell or rainy day would risk disaster. More than just an insurance policy against late frosts or unexpected dry spells, it turns out that seed dormancy has long-term advantages too: plants whose seeds put off sprouting until conditions are more certain give rise to more species.

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