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News | Archive (14 January 2011)
Researchers find rising levels of hypertension in older Mexican-Americans
— 16:50 GMT | HealthA new study by researchers at the University of Texas Medical Branch at Galveston reveals that the prevalence of hypertension in older Mexican-Americans living in the Southwest region of the United States has increased slightly in the last decade…
MU scientists find new farming method to reduce greenhouse gases, increase farm yields
— 16:47 GMT | EnvironmentU.S. agricultural practices create 58 percent of nitrous oxide in the world, which is the third most prevalent greenhouse gas in the atmosphere. Scientists believe nitrous oxide contributes to global warming about 300 times more than carbon dioxide. New practices and products have been introduced to address this issue, but farmers do not have the time or profit margins to experiment with ideas that may ultimately hurt the 'bottom line.' Now, researchers at the University of Missouri have found methods to help farmers reduce those emissions while also increasing corn grain production…
U of I physicists observe exotic state in an unconventional superconductor
— 16:44 GMT | PhysicsA new fractional vortex state observed in an unconventional superconductor may offer the first glimpse of an exotic state of matter predicted theoretically for more than 30 years. In a paper published in the January 14 issue of Science, University of Illinois physicists, led by Raffi Budakian, describe their observations of a new fractional vortex state in strontium ruthenium oxide (SRO). Such states may provide the basis for a novel form of quantum computing in which quantum information is encoded in the topological properties of a physical system…
Self-assembling structures open door to new class of materials
— 16:41 GMT | TechnologyResearchers at the University of Illinois and Northwestern University have demonstrated bio-inspired structures that self-assemble from simple building blocks: spheres…
Writing about worries eases anxiety and improves test performance
— 16:38 GMT | HealthStudents can combat test anxiety and improve performance by writing about their worries immediately before the exam begins, according to a University of Chicago study published Friday in the journal Science…
GM chickens that don't transmit bird flu developed
— 16:35 GMT | HealthChickens genetically modified to prevent them spreading bird flu have been produced by researchers at the Universities of Cambridge and Edinburgh…
UCSF study identifies chemicals in pregnant women
— 16:32 GMT | HealthThe bodies of virtually all U.S. pregnant women carry multiple chemicals, including some banned since the 1970s and others used in common products such as non-stick cookware, processed foods and personal care products, according to a new study from UCSF. The study marks the first time that the number of chemicals to which pregnant women are exposed has been counted…
Scientists sequence gut microbes of premature infant
— 16:29 GMT | HealthScientists have for the first time sequenced and reconstructed the genomes of most of the microbes in the gut of a premature newborn and documented how the microbe populations changed over time…
When continents formed
— 16:26 GMT | Geology and palaeontologyThe continental crust is the principal record of conditions on the Earth for the last 4.4 billion years. Its formation modified the composition of the mantle and the atmosphere, it supports life, and it remains a sink for carbon dioxide through weathering and erosion. The continental crust therefore has had a key role in the evolution of the Earth, and yet the timing of its generation remains the topic of considerable debate…
'Longevity' protein SIRT1 may ward off precursor to prostate cancer
— 16:23 GMT | HealthResearchers from the Kimmel Cancer Centre at Jefferson and two other institutions have discovered new evidence that suggests the 'longevity' protein SIRT1, known for its life-spanning effects in different species, can inhibit the development of a known precursor to prostate cancer, prostatic intraepithelial neoplasia (PIN)…
Ocean currents are surprisingly resistant to intensifying winds
Dawn glides toward a Mars flyby