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A Dual Look at Photosystem II Using the World’s Most Powerful X-Ray Laser

By Guest PostFebruary 27, 2013Sciencealgae, berkeley lab, carbon dioxide, catalytic activities, cryogenic temperatures, cyanobacteria, data, earth, energy, free electron laser, green plants, jan kern, junko yano, laser pulses, lcls, light source, linac coherent, living cells, manganese calcium, metal ion, metalloenzyme crystal, metalloenzymes, mn4ca, molecular oxygen, most powerful, natural photosynthesis, nicholas sauter, nitrogen fixation, oxidation states, photo reduction, photon step cycle, photon steps, photosystem, protein complex, proteins, radiation damage, roberto alonso mori, s1 to s4, sensitive to radiation, simulate solar photons, slac, software tools, sunlight, uwe bergmann, vital to life, vittal yachandra, water, water molecules, world, xes, xfel, xray beams, xray diffraction, xray emission spectroscopy, xray laser, xrd

Berkeley Lab and SLAC Researchers Demonstrate Room Temperature Simultaneous Diffraction/Spectroscopy of Metalloenzymes

From providing living cells with energy, to nitrogen fixation, to the splitting of water molecules, the catalytic activities of metalloenzymes – proteins that contain a metal ion – are vital to life on Earth. A better understanding of the chemistry behind these catalytic activities could pave the way for exciting new technologies, most prominently artificial photosynthesis systems that would provide clean, green and renewable energy. Now, researchers with the U.S. Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab) and the SLAC National Accelerator Laboratory have taken a major step towards achieving this goal.

Using ultrafast, intensely bright pulses of X-rays from SLAC’s Linac Coherent Light Source (LCLS), the world’s most powerful X-ray laser, the researchers were able to simultaneously image at room temperature the atomic and electronic structures of photosystem II, a metalloenzyme critical to photosynthesis. (more…)

UCLA Scientists Develop New Therapeutics that Could Accelerate Wound Healing

By Guest PostFebruary 27, 2013Healthaccelerate, acidic conditions, advertisement, antibiotic creams, bandages, basic, bfgf, bind heparin, biologist hugo armelin, bone regeneration, caitlin decker, chronic wounds, complex sugar, darice wong, dermatologist, diabetes, embryonic development, fibroblast growth factor, growth, growth factor, healing process, heather maynard, jenny kim, lloyd miller, motivation, natural biomolecules, naturally occurring, nervous system, new blood vessels, new cells, new therapeutics, nutrients, p sscopegma, pituitary gland, polymer, signaling molecule, stem cell renewal, structure of heparin, sung hye kim, thi nguyen, tissue regeneration, treat skin wounds, wound healing, wound healing ointments

In “before” and “after” photos from advertisements for wound-healing ointments, bandages and antibiotic creams, we see an injury transformed from an inflamed red gash to smooth and flawless skin.

What we don’t appreciate is the vital role that our own natural biomolecules play in the healing process, including their contribution to the growth of new cells and the development of new blood vessels that provide nutrients to those cells. (more…)

Underwater Robot

By Guest PostFebruary 27, 2013Sciencearthur trembanis, carter duval, ceoe, coast of delaware, create sonar images, douglas miller, high definition, laundry basket, marine samples, mark moline, metal frame, navigation system, navy, number of mussels, palau, plastic, plume of water, record video, redbird artificial reef, remotely operated vehicle, research expedition, rov, scientists, swimming pool, underwater robot, university of delaware, waterproof video cameras, western pacific

New remotely operated vehicle to aid UD marine research efforts

UD researchers discuss a new underwater robot that will assist in marine research.

An underwater robot made a splash at a University of Delaware swimming pool recently in a test of the new equipment, which will soon be used in field research by College of Earth, Ocean and Environment (CEOE) scientists.

The device, called a remotely operated vehicle (ROV), can dive deep below the ocean surface to record video, create sonar images and retrieve objects. (more…)

Around the World with Windows Store Apps

By Guest PostFebruary 26, 2013Technologyapp builder, barcelona, calculator, chimpact, cookbook, doodlegod, ela, france, Germany, italy, joybits, magix, mobile world congress, music maker jam, paint 4 kids, phd student, physics, pietro, richard walters, russia, slow sense, spain, urban airship, US, windows 8, windows store apps, yippee entertainment

From a physics Ph.D. student-turned-app builder to chimps launching an indie game studio, app builders across the globe are bringing amazing experiences to Windows 8 and enjoying success along the way.

REDMOND, Wash. – Feb. 26, 2013 – This week, thousands have descended upon Barcelona, Spain, for Mobile World Congress, the world’s premier mobile industry event. In honor of this international gathering, we’re celebrating Windows Store apps from around the world, along with stories of the people working behind the scenes to bring those apps to life on Windows 8. (more…)

City Layout Key to Predicting Riots

By Guest PostFebruary 26, 2013Politicscity layout, civil unrest, london riots, model, policing, predicting riots, riot, rioting, spread of riots

In the future police will be able to predict the spread of riots, and how they impact on cities, thanks to a new computer model. (more…)

Human Cognition Depends Upon Slow-Firing Neurons

By Guest PostFebruary 26, 2013Sciencealzheimer's disease, amy arnsten, any sensory stimulation, brain circuits, clear thinking, cognitive deficits, dementia, disease, Environment, firing of neurons, glutamate signaling regulate, good mental health, hallmark, human cognition, john krystal, mathematical models, medicine, mental sketch pad, min wang, molecular basis, nao j gamo, neuronal firing, new york university, nmda nr2b receptors, prefrontal cortex, receptors, schizophrenia, street drug, types of nmda, xiao jing wang, yale neurobiologist, yale school, yang yang

Good mental health and clear thinking depend upon our ability to store and manipulate thoughts on a sort of “mental sketch pad.” In a new study, Yale School of Medicine researchers describe the molecular basis of this ability — the hallmark of human cognition — and describe how a breakdown of the system contributes to diseases such as schizophrenia and Alzheimer’s disease.

“Insults to these highly evolved cortical circuits impair the ability to create and maintain our mental representations of the world, which is the basis of higher cognition,” said Amy Arnsten, professor of neurobiology and senior author of the paper published in the Feb. 20 issue of the journal Neuron. (more…)

‘Most Verbose’: Meet Microsoft’s Original MVP

By Guest PostFebruary 26, 2013Technologybroadband, calvin hsia, calvin list, compuserve forum, database, developer division, Facebook, feedback, foxpro, hawaii, Microsoft, microsoft ceo, microsoft employee, modem, most verbose, most verbose people, mvp list, original mvp, professional program, redmond, sde, software development engineer, steve ballmer, Twitter, verbosity, visual studio

Twenty years ago, Calvin Hsia created a list of the “Most Verbose People” on a CompuServe forum that became Microsoft’s Most Valuable Professional program.

REDMOND, Wash. – It’s 1993, and you need technical support. Who you gonna call?

Most techies at the time would plug in their modems and dial up CompuServe. In the days before Twitter, Facebook and broadband, CompuServe’s forums were a gathering place for geeks to talk shop and get answers to burning questions. (more…)

comScore Releases the “2013 Mobile Future in Focus” Report

By Guest PostFebruary 25, 2013Technologydigital media consumption, key mobile trends, market dynamics, mobile future, mobile networks, multi platform paradigm

Report Features Insights on Key Mobile Trends from 2012 and What They Mean for the Year Ahead

RESTON, VA, February 25, 2013– comScore, Inc., a global leader in digital measurement and analytics, today released the 2013 Mobile Future in Focus report. This annual report examines the U.S. mobile and connected device landscape in 2012, highlighting trends that have shaped mobile media consumption and shifted market dynamics across mobile networks, platforms, and OEMs. The report also includes key mobile market insights from the United Kingdom, France, Germany, Spain, Italy, Canada, and Japan. (more…)

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