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Stars Gather in ‘Downtown’ Milky Way

By Guest PostMarch 20, 2011Science120 degree view, astronomers, earth, galactic center, Galaxy, infrared array camera, milky way galaxy, multiband imaging photometer, myriad of stars, NASA, polycyclic aromatic hydrocarbons, spitzer image, spitzer space telescope, starlight

The region around the center of our Milky Way galaxy glows colorfully in this new version of an image taken by NASA’s Spitzer Space Telescope.

The data were previously released as part of a long, 120-degree view of the plane our galaxy (see https://www.spitzer.caltech.edu/images/2680-ssc2008-11a-Spitzer-Finds-Clarity-in-the-Inner-Milky-Way). Now, data from the very center of that picture are being presented at a different contrast to better highlight this jam-packed region. In visible-light pictures, it is all but impossible to see the heart of our galaxy, but infrared light penetrates the shroud of dust giving us this unprecedented view. (more…)

Human Prejudice Has Ancient Evolutionary Roots

By Guest PostMarch 19, 2011Sciencecoast of puerto rico, common ancestor, evolution, evolutionary theorists, human, human culture, human nature, iat, implicit attitudes, ingenious experiments, island, laurie santos, mahzarin banaji, margaret martinez, monkeys, natashya gutierrez, neha mahajan, primate, psychologist, sequence of photos, us versus them

The tendency to perceive others as “us versus them” isn’t exclusively human but appears to be shared by our primate cousins, a new study led by Yale researchers has found.

In a series of ingenious experiments, Yale researchers led by psychologist Laurie Santos showed that monkeys treat individuals from outside their groups with the same suspicion and dislike as their human cousins tend to treat outsiders, suggesting that the roots of human intergroup conflict may be evolutionarily quite ancient. (more…)

Study Finds More Efficient Means Of Creating, Arranging Carbon Nanofibers

By Guest PostMarch 19, 2011Sciencecarbon nanofibers, diameter of nanofibers, ligand monolayers, ligands, nanofibers, nanoparticles, nickel nanoparticles, north carolina state university, organic molecules, time-consuming, trioctylphosphine

Carbon nanofibers hold promise for technologies ranging from medical imaging devices to precise scientific measurement tools, but the time and expense associated with uniformly creating nanofibers of the correct size has been an obstacle – until now. A new study from North Carolina State University demonstrates an improved method for creating carbon nanofibers of specific sizes, as well as explaining the science behind the method.

“Carbon nanofibers have a host of potential applications, but their utility is affected by their diameter – and controlling the diameter of nanofibers has historically been costly and time-consuming,” says Dr. Anatoli Melechko, an associate professor of materials science and engineering at NC State and co-author of a paper describing the study. (more…)

UF Researchers Suspect Bacterial Changes in Mouth Promote Oral Disease in People With HIV

By Guest PostMarch 19, 2011Healthbacterial communities, chronic periodontitis, clay walker, gary wang, hiv infected patients, immune system, microbial signature, oral biota, oral microorganisms

GAINESVILLE, Fla. — Oral disease occurs commonly and progresses rapidly among people who have HIV, but the process is poorly understood. Researchers suspect that the culprit is a change in the makeup of bacterial communities that live in the mouth. (more…)

Latin America’s Internet Population Grows 15 Percent in Past Year to 112 Million People

By Guest PostMarch 18, 2011Technologyalejandro fosk, argentineans, brazil, brazilians, Comscore, comscore media metrix, internet audience, latin america, mexicans, Mexico, spanish, Venezuela, webinar

*Venezuela and Colombia Web Populations Experience Highest Growth, Brazil Home to Most Engaged Users*

*comScore Presents Complimentary Webinar “The 2010 Digital Year in Review: Latin America”*

Santiago, Chile, March 18, 2011 – comScore, Inc., a leader in measuring the digital world, today released the latest results from a study of the growth in the Internet audience in Latin America based on data from its comScore Media Metrix service. The study found that in the past year the Internet population in Latin America has increased 15 percent to 112.7 million visitors as the region’s digital ecosystem continued to grow and develop. The results of the study will be presented along with other key online trends via a complimentary, live webinar 2010 Digital Year in Review Latin America on Tuesday, March 22. For more information and to register, please visit: https://www1.gotomeeting.com/register/255678857 Note: Webinar will be presented in Spanish. (more…)

Researchers Find That Pollution Forms an Invisible Barrier for Marine Life

By Guest PostMarch 18, 2011Environmentanthropogenic factors, bacteria, chemicals, chlorinated hydrocarbons, coastal areas, coastal water ecosystems, contaminants, discharge, ecosystem based management, evolutionary trajectory, heavy metals, human impacts, human stressors, jon puritz, larvae, los angeles, marine life, municipal treatment plants, nutrients, ocean, pacific coast, petroleum hydrocarbons, plankton, pollutants, population, rob toonen, sea stars, sewage, southern california bight, species, starfish, toxic, united states, urban runoff, urban runoff plumes

Over 50 percent of the population in the United States and over 60 percent in the world live in coastal areas. Rapidly growing human populations near the ocean have massively altered coastal water ecosystems.

One of the most extensive human stressors is the discharge of chemicals and pollutants into the ocean. In the Southern California Bight, more than 60 sewage and urban runoff sources discharge over 1 billion gallons of liquid on a dry day with the two largest sources of contaminants being sewage from municipal treatment plants and urban runoff from highly modified river basins. (more…)

Gadget Shopping Made Fast and Simple

By Guest PostMarch 18, 2011Technologybizspark one startup, gadget shopping, microsoft bizspark program, retrevo, shopping puzzle

Retrevo, a BizSpark One startup, makes you an instant gadget expert

Redmond, Wash. — Retrevo, a BizSpark One startup, offers consumers comprehensive, unbiased, up-to-date consumer electronics product information. (more…)

Violence in Advertising Becoming a ‘Disturbing’ Trend

By Guest PostMarch 18, 2011Mediatrend in advertising, tv violence, violence in advertising, violence in media, violent ads

EAST LANSING, Mich. — A punch. A kick. A hit in the head with a can of soda. It’s not a Three Stooges film but rather the latest trend in advertising, a trend a Michigan State University professor calls “disturbing.” (more…)

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