A long-standing controversy regarding the semiconductor gallium manganese arsenide, one of the most promising materials for spintronic technology, looks to have been resolved. Researchers with the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab)in collaboration with scientist from University of Notre Dame have determined the origin of the charge-carriers responsible for the ferromagnetic properties that make gallium manganese arsenide such a hot commodity for spintronic devices. Such devices utilize electron spin rather than charge to read ...

This February, Atlanta dumpster rental company Haul Masters celebrates its twelfth year in business. The best in Atlanta full service junk removal and Southeast dumpster rentals, Haul Masters looks forward to many more years of meeting the Southeast's trash removal needs. "We're thrilled to be celebrating twelve years in the trash removal industry," says Haul Masters owner Chris Tavormina. "Twelve years ago, we were just a little startup with big dreams, but we've grown and evolved to become the efficient, service-oriented company you see today." Local ...

Stanford, CA -- The major difference between plant and animal cells is the photosynthetic process, which converts light energy into chemical energy. When light isn't available, energy is generated by breaking down carbohydrates and sugars, just as it is in animal and some bacterial cells. Two cellular organelles are responsible for these two processes: the chloroplasts for photosynthesis and the mitochondria for sugar breakdown. New research from Carnegie's Eva Nowack and Arthur Grossman has opened a window into the early stages of chloroplast evolution. Their work is published ...

HOUSTON - A protein abundantly found in treatment-resistant cancers holds an important tumor-suppressor out of the cell nucleus, where it would normally detect DNA damage and force defective cells to kill themselves, a team of scientists reports in the current Cancer Cell. "Overexpression of Aurora Kinase-A in tumors has been correlated with resistance to DNA-damaging chemotherapy, but we haven't known how this occurs," said senior author Subrata Sen, Ph.D., professor in The University of Texas MD Anderson Cancer Center Department of Molecular Pathology. "Our discovery ...

Boulder, Colorado, USA - The March GSA TODAY, the Geological Society of America's open-access science and news magazine, is now online at http://www.geosociety.org/gsatoday/archive/22/3/. This month's science article, by Todd LaMaskin of the University of North Carolina at Wilmington, presents uranium-lead dating analyses of detrital zircon grains in Paleozoic-Mesozoic basin sediments in the Cordillera of western North America. LaMaskin's analysis shows a systematic variation in age distribution within the depositional age and setting of the host sediments. Four such ...

Most of us know what it means when it's said that someone is depressed. But commonly, true clinical depression brings with it a number of other symptoms. These can include anxiety, poor attention and concentration, memory issues, and sleep disturbances. Traditionally, depression researchers have sought to identify the individual brain areas responsible for causing these symptoms. But the combination of so many symptoms suggested to UCLA researchers that the multiple symptoms of depression may be linked to a malfunction involving brain networks — the connections that ...

Athens, Ga. – Heat-related deaths among football players across the country tripled to nearly three per year between 1994 and 2009 after averaging about one per year the previous 15 years, according to an analysis of weather conditions and high school and college sports data conducted by University of Georgia researchers. The scientists built a detailed database that included the temperature, humidity and time of day, as well as the height, weight and position for 58 football players who died during practice sessions from overheating, or hyperthermia. The study, published ...

A striking discovery in the study of human genetics was the focus of the most-visited press release posted on EurekAlert! in 2011. Researchers found that part of the non-African human X chromosome came from Neanderthals, confirming that they interbred with early human populations. Breakthroughs in mathematics, physics, chemistry, and medicine, along with discoveries in zoology, psychology, and astrobiology, were also featured in the 10 releases most often viewed by EurekAlert! readers in 2011. Website statistics collected over the course of the year identified the year's ...

The Holiday Inn Express & Suites Newberry SC Hotel offers special rates to guests attending the Irish Fling Celebration. The annual Newberry Irish Fling will take place on Friday, March 16, 2012 in downtown Newberry. It will celebrate St. Patrick's Day and includes live entertainment and festivities at various locations in Newberry. Performing live at the Newberry Opera House, headline entertainment will be Martha Reeves and the Vandellas. Show time is 8:00 PM and tickets can be purchased at the Newberry Opera House Box Office. "The Newberry Irish Fling is ...

Fairbanks, Alaska -- On Saturday, Feb. 18 at 8:41 p.m. Alaska time, scientists launched a NASA sounding rocket from Poker Flat Research Range into a brilliant aurora display. The rocket mission, designed to gather information on space weather conditions that affect satellite communications, was a success. "It was a terrific aurora, the rocket worked great, the instruments worked great and the supporting radar (at Poker Flat) worked wonderfully," said Steve Powell of Cornell University, the principal investigator for the launch. "We achieved all of our objectives. We're ...

A curious correlation between the mass of a galaxy's central black hole and the velocity of stars in a vast, roughly spherical structure known as its bulge has puzzled astronomers for years. An international team led by Francesco Tombesi at NASA's Goddard Space Flight Center in Greenbelt, Md., now has identified a new type of black-hole-driven outflow that appears to be both powerful enough and common enough to explain this link. Most big galaxies contain a central black hole weighing millions of times the sun's mass, but galaxies hosting more massive black holes also ...

University of Texas Medical Branch at Galveston researchers have discovered previously unsuspected aspects of the guidance system used by the body's first line of defense against infection. The new work focuses on the regulation of immune response by two forms of the signaling molecule IL-8, as well as IL-8's interaction with cell-surface molecules called glycosaminoglycans (or GAGs for short). Infected or injured tissues release IL-8 to attract bacteria- and virus-killing white blood cells known as neutrophils, a process known as "recruitment." As IL-8 proteins disperse ...

The upper class has a higher propensity for unethical behavior, being more likely to believe – as did Gordon Gekko in the movie "Wall Street" – that "greed is good," according to a new study from the University of California, Berkeley. "The increased unethical tendencies of upper-class individuals are driven, in part, by their more favorable attitudes toward greed," said Paul Piff, a doctoral student in psychology at UC Berkeley and lead author of the paper published today (Monday, Feb. 27) in the journal Proceedings of the National Academy of Sciences. Piff's study ...

NASA satellites have been watching the low pressure area called System 92S for days, and infrared imagery from NASA's Aqua satellite showed cloud temperatures were cooling, indicating the storm was getting more organized after it moved over northern Madagascar. Now it may be headed for landfall in Mozambique. The Atmospheric Infrared Sounder (AIRS) instrument on NASA's Aqua satellite captured infrared imagery on developing System 92S as it moved from the Southern Indian Ocean, west across northern Madagascar and into the Mozambique Channel. On February 25 at 0941 UTC, ...

The Hays Career Outlook Survey has revealed that workers are being trapped in career silos because they don't believe they can cross sector or industry boundaries, according to new data from the Hays Career Outlook Survey. The survey also highlights that employers in both sectors are often unable to recognise the transferable skills that might help them to identify potential candidates who are capable of supporting their growth plans. The survey reveals the vast majority of employers believe that previous experience in the same sector is important. Whilst only just ...

CORVALLIS, Ore. – The frigid McMurdo Dry Valleys in Antarctica are a cold, polar desert, yet the sandy soils there are frequently dotted with moist patches in the spring despite a lack of snowmelt and no possibility of rain. A new study, led by an Oregon State University geologist, has found that that the salty soils in the region actually suck moisture out of the atmosphere, raising the possibility that such a process could take place on Mars or on other planets. The study, which was supported by the National Science Foundation, has been published online this week ...

CHAMPAIGN, Ill. — A chemically altered osteoporosis drug may be useful in fighting malaria, researchers report in a new study. Unlike similar compounds tested against other parasitic protozoa, the drug readily crosses into the red blood cells of malaria-infected mice and kills the malaria parasite. The drug works at very low concentrations with no observed toxicity to the mouse. The study appears in the Proceedings of the National Academy of Sciences. The researchers found the drug by screening a library of about 1,000 compounds used in previous efforts to target an ...

SAN ANTONIO -- A two-year effort to prevent infections in children healing from cardiac surgery reduced sternum infections by 61 percent, a San Antonio researcher announced at the Cardiology 2012 conference Feb. 23 in Orlando, Fla. Faculty from UT Medicine San Antonio carried out a new infection-control protocol for 308 children who underwent sternotomies at CHRISTUS Santa Rosa Children's Hospital between 2009 and 2011. UT Medicine is the clinical practice of the School of Medicine at The University of Texas Health Science Center San Antonio. Approach to children ...

Philadelphia, PA, February 27, 2012 – Based on a review of the latest evidence, the Guidelines Committee of the Heart Failure Society of America now recommends that the use of cardiac resynchronization therapy (CRT) be expanded to a larger group of patients with mild heart failure symptoms. Recommendations for integrating new evidence into clinical practice appear in the February issue of the Journal of Cardiac Failure. CRT devices synchronize the function of the left ventricle so that it contracts more efficiently and in a coordinated way. It does this by stimulating ...

Guoman Hotels' The Grosvenor Hotel has revealed its past connection to one of the most risque residents of 1870s London, with the launch of its opulent 'Courtesan's Boudoir'. The Parisian-inspired Suite has been tenderly created in homage to one of the grand railway hotel's most infamous visitors - the scandalous courtesan, Miss Cora Pearl. A lady notorious with entertaining only the highest members of social standing, including royalty, Cora Pearl was one of the most feted courtesans of her time. In the 1870s, Cora made a rare visit to London and, after arriving at ...

Scientists from the School of Ocean and Earth Science and Technology (SOEST) at the University of Hawaii – Manoa (UHM) and colleagues recently discovered that land-based plant material and coastal macroalgae indirectly support the increased abundances of bottom fish in submarine canyons, like those off the north shore of Moloka'i. Less than a few miles from the shore, these underwater canyons connect to deep river valleys that cut across the landscape of north Moloka'i. The high elevation and forested landscapes along Moloka'i's north shore provide plant material, including ...

SFApps Company (www.sfapps.co) announced their new mobile application network and an innovative growth strategy that will focus on acquiring interests in multiple Apple and Android mobile applications to leverage economies of scale across the SFapps network. "SFApps is consolidating a fragmented app marketplace through investment and acquisition," said co-founder Barth Ballard. "Our strategy is to add value to our mobile app investments by growing cross-platform and global reach, centralizing and renegotiating advertising agreements, and deploying best ...

A padlocked icon in a web-browser or a URL starting with https provides communication security over the Internet. The icon or URL indicates OpenSSL, a cryptography toolkit implementing the SSL protocol, or a similar system is being used. New research by a collaborative team has developed an attack that can circumvent the security OpenSSL should provide. The attack worked on a very specific version of the OpenSSL software, 0.9.8g, and only when a specific set of options were used. Dr Dan Page, Senior Lecturer in Computer Science in the Department of Computer Science ...

PHILADELPHIA — Oncologists who treat patients with pancreatic cancer may be one step closer to understanding why gemcitabine, the only currently available treatment, works in some cases but not in others, according to a paper in Cancer Discovery, a journal of the American Association for Cancer Research. David Tuveson, M.D., Ph.D., a professor of pancreatic cancer medicine at the University of Cambridge, utilized a laboratory model to test the combination of gemcitabine and nab-paclitaxel in pancreatic cancer. "The combination has shown promise in an early clinical ...

Washington, D.C. (28 February 2012)—The prospect of deep cuts in the federal budget threatens to reverse the dramatic progress of a bipartisan US commitment to defeat neglected diseases in developing countries, according to a new report released today by the Global Health Technologies Coalition (GHTC). Federal investments in global health research and development (R&D) programs that span multiple agencies have helped nurture an array of new vaccines, medicines, diagnostics, and other health products needed to combat diseases like HIV/AIDS, malaria, tuberculosis (TB), ...