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Searching for the “Perfect Glass”

By Guest PostJune 18, 2011Sciencealuminum, atmospheric pressure, atomic structures, atoms, carnegie, cerium, cerium aluminum glass, crystals, favorablesystem, geophysical laboratory, gigapascals of pressure, glasses, ho kwang mao, metallic glass, minerals, silica, zeolite

Washington, D.C.— Glasses differ from crystals. Crystals are organized in repeating patterns that extend in every direction. Glasses lack this strict organization, but do sometimes demonstrate order among neighboring atoms. New research from Carnegie’s Geophysical Laboratory reveals the possibility of creating a metallic glass that is organized on a larger scale. Their results are published June 17 in Science.

Scientists have discovered glasses that demonstrate order among the nearest neighboring atoms, called short-range order, and a slightly wider range of atoms, called medium-range order. Most research about finding or creating a glass with a long-range, nearly crystalline, level of order—referred to as the perfect glass state—has been conducted on ice and the minerals silica and zeolite. But no research into long-range order glass has been successful until now. (more…)

Ocean’s Harmful Low-Oxygen Zones growing, are Sensitive to Small Changes in Climate

By Guest PostJune 18, 2011Environmentatmospheric and oceanic sciences, consume nitrogen, curtis deutsch, expansion and contraction of low-oxygen zones, fluctuations in climate, global warming, kim derose, low-oxygen water, marine ecosystems, molecular oxygen, nobel prize, oscillations in climate, oxygen and nitrogen depletion, oxygen zones, oxygen-depleted environments, respiring bacteria, rising global temperatures, university of california

Fluctuations in climate can drastically affect the habitability of marine ecosystems, according to a new study by UCLA scientists that examined the expansion and contraction of low-oxygen zones in the ocean.

The UCLA research team, led by assistant professor of atmospheric and oceanic sciences Curtis Deutsch, used a specialized computer simulation to demonstrate for the first time that the size of low-oxygen zones created by respiring bacteria is extremely sensitive to changes in depth caused by oscillations in climate. These oxygen-depleted regions, which expand or contract depending on their depth, pose a distinct threat to marine life. (more…)

Chemistry Never Sounded This Good!

By Guest PostJune 18, 2011Educationalex jaksha, ali lanewala, beatles, chem 14d jedi, chemistry, chemistry jedis, chemistry jock, concepts like salvation, daniel brenners, edgar gonzalez; forget that, frank choe, gargonauts, hydrogenation, immunology and molecular genetics, john boles, jordan halfman, justin banaga, kevin nishida, kimberly bui, lady gaga, let it be, michelle azurin, microbiology, mike dai, music, music video, myan pham, nakia sarad, neil garg, o chem toolbox, organic chemistry course, professor neil garg, rachel stafford lewis, sean nguyen, sophomore, ucla, video, we're yours, yannick goeb, YouTube

*UCLA students set organic chemistry to music, from Beatles to Lady Gaga*

By now, the word is out at UCLA that undergraduates in Neil Garg’s organic chemistry course produce clever, creative music videos as an extra-credit assignment. The bigger secret may be just how much chemistry they learn by doing so, as none of them are chemistry majors and most admit they didn’t like chemistry when the class started.

It’s a little too soon to say which music video will be this year’s sensation. A strong candidate is “We’re Yours” by the Gargonauts — Rachel Stafford-Lewis, Myan Pham, Ali Lanewala and Jordan Halfman — which achieves the desired trifecta of excellent chemistry in a video that sounds and looks great. But unlike last year, when one video, “Chemistry Jock” — which has become the gold standard of the genre, with 38,000 YouTube views and many fans — ran away from the competition, this year’s field is much deeper. (more…)

comScore Releases May 2011 U.S. Online Video Rankings

By Guest PostJune 17, 2011Technologybrightroll video network, Comscore, Facebook, Google, hulu, internet users, online video, tremor media video network, vevo, viacom digital, video ads, Yahoo, YouTube

*Average YouTube Viewer Watched More Than 5 Hours of Video*

RESTON, VA, June 17, 2011 – comScore, Inc., a leader in measuring the digital world, today released data from the comScore Video Metrix service showing that 176 million U.S. Internet users watched online video content in May for an average of 15.9 hours per viewer. The total U.S. Internet audience engaged in more than 5.6 billion viewing sessions during the course of the month.

Top 10 Video Content Properties by Unique Viewers

Google Sites, driven primarily by video viewing at YouTube.com, ranked as the top online video content property in May with 147.2 million unique viewers, followed by VEVO with 60.4 million viewers and Yahoo! Sites with 55.5 million viewers. Facebook.com came in fourth with 48.2 million viewers, while Viacom Digital ranked fifth with 46.5 million viewers. Google Sites had the highest number of viewing sessions with more than 2.1 billion, and highest time spent per viewer at 311 minutes, crossing the 5-hour mark for the first time. (more…)

Wild Pockets: Girl Geek Leads 3-D Gamer Revolution

By Guest PostJune 17, 2011Technology3 d game, art and technology, bizspark one startup, carnegie mellon university, Facebook, female ceo, game jams, high tech company, josh yelon, Microsoft, microsoft bizspark program, microsoft technology, mobile devices, open source gaming, san francisco, shanna tellerman, video game technology, visual studio, wild pockets, windows games, xbox, xbox 360

*Shanna Tellerman is on her game as CEO of BizSpark One startup Wild Pockets.*

REDMOND, Wash. — Wild Pockets, a BizSpark One startup, is building the future of open source gaming.

Shanna Tellerman had no intention of becoming the CEO of a high-tech company. In college, she was intent on pursuing a career in art. It wasn’t until she took a course that combined art and technology at Carnegie Mellon University that she had the idea that she could marry the two fields. While at Carnegie Mellon, Tellerman worked on a project that used video game technology as a training method for first responders in emergency situations. The result was a drag-and-drop user interface that let people set up almost any kind of firefighting scenario. Her solution was so easy to use that it quickly became popular with fire departments across the U.S. (more…)

The War on Microbes

By Guest PostJune 17, 2011Healthbreed of microbes, foodborne bacterial strain, foodborne illness, foodborne outbreaks, foodborne pathogens

The outbreak of a new foodborne bacterial strain wreaking havoc in Germany is a reminder of the fast-changing nature of microbes and the dangers they pose to society. UA researchers are developing innovative strategies to fight emerging germs threatening the food and health-care industry. (more…)

X-Ray Telescope Finds New Voracious Black Holes in Early Universe

By Guest PostJune 17, 2011Sciencebig bang, black holes, cdfs, chandra, chandra deep field south, chandra x ray observatory, cosmic dawn, cosmic fog, early universe, eric gawiser, ezequiel treister, galaxies, giant black holes, Hubble Space Telescope, kevin schawinski, marta volonteri, massive black holes, NASA, neutral hydrogen, new jersey, optical and infrared images, photons, physics, priya natarajan, quasars, reionization, Rutgers University, supermassive black holes, university of hawaii, university of michigan, x ray image, yale university, young black holes

ANN ARBOR, Mich.— Using the deepest X-ray image ever taken, a University of Michigan astronomer and her colleagues have found the first direct evidence that massive black holes were common in the early universe. This discovery from NASA’s Chandra X-ray Observatory shows that very young black holes grew more aggressively than previously thought, in tandem with the growth of their host galaxies.

By pointing Chandra at a patch of sky for over six weeks, astronomers obtained what is known as the Chandra Deep Field South (CDFS). When combined with very deep optical and infrared images from NASA’s Hubble Space Telescope, the new Chandra data allowed astronomers to search for black holes in 200 distant galaxies, from when the universe was between about 800 million and 950 million years old. (more…)

Study Reveals Important Aspects of Signalling Across Cell Membranes in Plants

By Guest PostJune 17, 2011Scienceanimal cell, cellular membranes, communication process, joanne chory laboratory, membrane, membrane bound receptor, michael hothorn, national science foundation, plant cell, receptor molecules, salk institute, signal, transmembrane signalling, yellow steroid

*Plant receptors use different signalling method than do animal receptors*

Every living plant cell and animal cell is surrounded by a membrane. These cellular membranes contain receptor molecules that serve as the cell’s eyes and ears, and help it communicate with other cells and with the outside world.

The receptor molecules accomplish three basic things in the communication process: 1) recognize an outside signal, 2) transport that signal across the cell’s membrane and 3) initiate the reading of the signal inside the cell and then initiate the cell’s response to that signal. These steps are collectively known as transmembrane signaling. (more…)

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