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A Scarcity of Women Leads Men to Spend More, Save Less

By Guest PostJanuary 13, 2012Cultureandrew delton, andrew e white, behavior, credit cards, economic decisions, Economics, engagement rings, expenditures, financial behavior, financial consequences, iceberg, impulsive, joshua m ackerman, joshua tybur, local population, men and women, news articles, perception, photo arrays, products, psychology, sex ratio, theresa robertson, twin cities of minneapolis, university of minnesota, us cities, valentine gifts, violence and survival, vladas griskevicius, women

*University of Minnesota Research Finds Sex Ratios Influence Financial Decisions*

MINNEAPOLIS / ST. PAUL — The perception that women are scarce leads men to become impulsive, save less, and increase borrowing, according to new research from the University of Minnesota’s Carlson School of Management.

“What we see in other animals is that when females are scarce, males become more competitive. They compete more for access to mates,” says Vladas Griskevicius, an assistant professor of marketing at the Carlson School and lead author of the study. “How do humans compete for access to mates? What you find across cultures is that men often do it through money, through status and through products.” (more…)

MU Researchers Find Unique Protein Organization in Arteries Associated with Cardiovascular Disease

By Guest PostJanuary 13, 2012Health, Science3 d microscopic imaging technology, amount of protein, artery, artery functions, blood vessels, cardiovascular disease, cause of death, circulatory complications, diabetes, disorders, elastin, elastin production, factor, gerald meininger, high blood pressure, human arteries, michael hill, minute structural elements, molecular biologists, stiffening, stiffening process, tissue replacement proces, united states, university of missouri

*Knowledge could assist in tissue replacements, treatments for high blood pressure and diabetes*

COLUMBIA, Mo. – Human arteries – some smaller than a strand of hair – stiffen as a person ages. This stiffening is a factor in cardiovascular disease, the leading cause of death in the United States, because it contributes to the circulatory complications in disorders such as high blood pressure and diabetes. University of Missouri researchers have now used advanced 3-D microscopic imaging technology to identify and monitor the proteins involved in this stiffening process. These findings could eventually help researchers and physicians understand and treat complications associated with cardiovascular disease. (more…)

Stars Pop Onto the Scene in New WISE Image

By Guest PostJanuary 13, 2012Scienceamerican astronomical society, astronomers, bubbles, cosmic clouds, dave leisawitz, gas and dust, milky way galaxy, mosaic, NASA, natal clouds, nebulae, new star birth, newborn stars, public astronomy, radiation, space telescope, specimens, star formation, star forming clouds, triggered star formation, triggered star formation theory, wide field infrared survey explorer, wise, wise mosaic, xavier koenig

PASADENA, Calif. — A new, large mosaic from NASA’s Wide-Field Infrared Survey Explorer (WISE) showcases a vast stretch of cosmic clouds bubbling with new star birth. The region — a 1,000-square-degree chunk of our Milky Way galaxy — is home to numerous star-forming clouds, where massive stars have blown out bubbles in the gas and dust.

“Massive stars sweep up and destroy their natal clouds, but they continuously spark new stars to form along the way,” said WISE Mission Scientist Dave Leisawitz of NASA Goddard Space Flight Center, Greenbelt, Md. Leisawitz is co-author of a new paper reporting the results in the Astrophysical Journal. “Occasionally a new, massive star forms, perpetuating the sequence of events and giving rise to the dazzling fireworks display seen in this WISE mosaic.” (more…)

IBM Research Determines Atomic Limits of Magnetic Memory

By Guest PostJanuary 12, 2012Technologyantiferromagnetism, atomic limits, magnetic atoms, magnetic bit, magnetic memory, magnetic storage

*IBM scientists create the world’s smallest magnetic memory bit using only 12 atoms.*

*First-ever demonstration of engineered atomic-scale structures storing information magnetically at low temperatures.* (more…)

Study Indicates Hail May Disappear From Colorado’s Front Range by 2070

By Guest PostJanuary 12, 2012Environmentclimate change, climate models, climate warming, colorado, colorado springs, continental divide, decision-makers, denver, downscaled, downscaling technique, eastern flank, flash floods, foothill communities, fort collins, global climate models, greenhouse gases, hail, hail damage, hailstones, james scott, joseph barsugli, kelly mahoney, michael alexander, nature climate change, precipitation, rain, regional scale models, regional topography, risk of flooding, rocky mountains, runoff, thunderstorms, weather scale

Summertime hail could all but disappear from the eastern flank of Colorado’s Rocky Mountains by 2070, says a new study by the National Oceanic and Atmospheric Administration, the University of Colorado Boulder’s Cooperative Institute for Research in Environmental Sciences and the National Center for Atmospheric Research.

Less hail damage could be good news for gardeners and farmers, said lead author Kelly Mahoney, a research scientist at CIRES, but a shift from hail to rain can also mean more runoff, which could raise the risk of flash floods. “In this region of elevated terrain, hail may lessen the risk of flooding because it takes awhile to melt,” Mahoney said. “Decision makers may not want to count on that in the future.” (more…)

Crab Sagas Yield Insight into Sustainable Fisheries

By Guest PostJanuary 12, 2012Environmentarmy corps of engineers, bering sea, causes, claws, climate and corps, crab populations, crab sagas, david armstrong, death assemblages, don bevan, dungeness crab, ecosystem, ghost shrimp, grays harbor, grays harbor estuaries, habitat, habitat destruction, myriad issues, natural factors, overfishing, pacific northwest, pacific oyster shell, predators, red king crab, soft shell mya, sustainability, sustainability meets reality, sustainable fisheries, tanya bevan, us crab fisheries, washington fishermen, washington state, willapa bay

Decades of wild swings in crab populations – some natural, some human-caused – dramatize the myriad issues surrounding questions about sustainable fisheries and the ecosystems that support them.

So said David Armstrong, professor and director of aquatic and fishery sciences, in his Jan. 5 talk “Claws, causes, climate and corps: A cavalcade of true crab sagas.” (more…)

NASA Radar to Study Hawaii’s Most Active Volcano

By Guest PostJanuary 12, 2012Scienceactive volcano, airborne radar, big island, deformation, dryden flight research center, earth surface, east rift zone, edwards, hawaii, interferometry, jet propulsion laboratory, kilauea volcano, NASA, pasadena, pulses of microwave energy, research aircraft, sensor, uavsar, uninhabited aerial vehicle synthetic aperture radar

An airborne radar developed by NASA’s Jet Propulsion Laboratory, Pasadena, Calif., has returned to Hawaii to continue its study of Kilauea volcano, Hawaii’s current most active volcano.

The Uninhabited Aerial Vehicle Synthetic Aperture Radar, or UAVSAR, mounted in a pod under NASA’s G-III research aircraft from NASA’s Dryden Flight Research Center, Edwards, Calif., returned to Hawaii’s Big Island on Jan. 7. The one-week airborne campaign will help scientists better understand processes occurring under Earth’s surface at Kilauea. (more…)

Evolution is Written All Over Your Face

By Guest PostJanuary 11, 2012Scienceevolution, evolutionary detectives, faces of primates, facial expressions, facial features, new world primates, shaping human faces

Why are the faces of primates so dramatically different from one another?

UCLA biologists working as “evolutionary detectives” studied the faces of 129 adult male primates from Central and South America, and they offer some answers in research published today, Jan. 11, in the early online edition of the journal Proceedings of the Royal Society B. The faces they studied evolved over at least 24 million years, they report. (more…)

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