LIVERMORE, Calif. -- Researchers at Lawrence Livermore National Laboratory have performed record simulations using all 1,572,864 cores of Sequoia, the largest supercomputer in the world. Sequoia, based on IBM BlueGene/Q architecture, is the first machine to exceed one million computational cores. It also is No. 2 on the list of the world's fastest supercomputers, operating at 16.3 petaflops (16.3 quadrillion floating point operations per second). The simulations are the largest particle-in-cell (PIC) code simulations by number of cores ever performed. PIC simulations ...

(Boston) –Physician experts in health system issues propose a timely alternative process for harnessing and supporting physician-led innovations to rapidly address front-line health care delivery problems and improve health. Published as a Viewpoint article in the March 20th issue of the Journal of the American Medical Association (JAMA), the authors propose health systems adopt a strategy widely accepted in U.S. industries of "user-led" innovation. User-led innovation is predicated on the idea that important enhancements to products and services are often made by users ...

BALTIMORE – March 19, 2013. Researchers at the University of Maryland School of Medicine have identified a peptide, or protein, derived from Pacific cod that may inhibit prostate cancer and possibly other cancers from spreading, according to preclinical research published online in the Proceedings of the National Academy of Sciences (PNAS). "The use of natural dietary products with anti-tumor activity is an important and emerging field of research," says senior author Hafiz Ahmed, Ph.D., assistant professor of biochemistry and molecular biology at the University of Maryland ...

The U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) and Argonne National Laboratory (ANL) today announced the release of the Transportation Energy Futures (TEF) study, an assessment of avenues to reach deep cuts in petroleum use and greenhouse gas (GHG) emissions in the transportation sector. "Transportation is an engine of our economic strength, but it also represents a key challenge for the future of U.S. energy use," NREL Senior Analyst Austin Brown said. "Transportation accounts for 71 percent of total U.S. petroleum consumption and 33 ...

OAK BROOK, Ill. – March 19, 2013 – In recognition of National Colorectal Cancer Awareness Month, GIE: Gastrointestinal Endoscopy has published a special issue for March on colorectal cancer. The issue includes a practical guide for approaching and managing serrated colon polyps, one of the most common types of polyps, and a study on reducing postpolypectomy bleeding with prophylactic clip closure. GIE: Gastrointestinal Endoscopy is the monthly peer-reviewed scientific journal of the American Society for Gastrointestinal Endoscopy (ASGE). "The cutting edge of serrated ...

Nurses and midwives can play a critical role in lessening people's risk of cardiovascular diseases, cancers, chronic respiratory disease and diabetes, according to a groundbreaking new report issued by the World Health Organization and co-authored by a UCLA nursing professor. These four non-communicable disease types account for a combined 60 percent of all deaths worldwide. "The global burden of non-communicable diseases is already high and continues to grow in all regions of the world," said Linda Sarna, a professor at the UCLA School of Nursing and co-author ...

SAN FRANCISCO, CA (March 19, 2013) - House paint containing dangerous concentrations of lead is being sold in Cameroon by an American company – and the company is refusing to remove the paint from store shelves. "There is an immediate need for regulations to restrict the lead content of paint in Cameroon to protect public health," said Perry Gottesfeld, Executive Director of Occupational Knowledge International (OK International) and co-author of a new research study about this lead hazard. "The levels of lead are extraordinarily high, and these products have been ...

MAYWOOD, Ill. – Findings from a Loyola University Chicago Stritch School of Medicine study could lead to the development of new drugs to treat gout. The study, led by Liang Qiao, MD, and his colleagues and collaborators, was published March 19 in the journal Nature Communications. Gout is caused by a buildup of uric acid around joints, typically the big toe, knee or ankles. The immune system revs up to attack uric acid salt crystals, and this immune response causes painful inflammation. The innate immune response is mainly activated by calcium that enters a macrophage ...

SAN DIEGO — Neurologists at Mayo Clinic in Arizona have taken a promising step toward identifying a test that helps support the diagnosis of concussion. Their research has shown that autonomic reflex testing, which measures involuntary changes in heart rate and blood pressure, consistently appear to demonstrate significant changes in those with concussion. They presented the findings at the American Academy of Neurology annual meeting in San Diego this week. Right now doctors rely primarily on self-reporting of symptoms to make a diagnosis of concussion. In addition, ...

PITTSBURGH—Women may be less likely to pursue careers in science—not because they have less ability—but because they have more career choices, according to a University of Pittsburgh study published today in Psychological Science. Although the gender gap in mathematics has narrowed in recent decades between males and females, women are still less likely to pursue STEM careers than their male counterparts. Together with colleagues at the University of Michigan, the Pitt research team investigated whether differences in overall patterns of math and verbal ability might ...

Research led by a biology professor in the School of Science at Indiana University-Purdue University Indianapolis (IUPUI) has uncovered a method to produce retinal cells from regenerative human stem cells without the use of animal products, proteins or other foreign substances, which historically have limited the application of stem cells to treat disease and other human developmental disorders. The study of human induced pluripotent stem cells (hiPSCs) has been pursued vigorously since they were first discovered in 2007 due to their ability to be manipulated into specific ...

ALBUQUERQUE, N.M. — An alloy that may improve high-temperature electronics in oil and geothermal wells was really a solution in search of a problem. Sandia National Laboratories first investigated the gold-silver-germanium alloy about 15 years ago as a possible bonding material in a new neutron tube product. But a design change forced Sandia to shelve the material, said Paul Vianco, who has worked in soldering and brazing technology at Sandia for 26 years. Then a few years ago, researchers working on other projects with applications inside a well, referred to as downhole, ...

THE WOODLANDS, Texas, March 19, 2013 — When it comes to examining the surface of rocks on Mars with a high-powered laser, five is a magic number for Los Alamos National Laboratory postdoctoral researcher Nina Lanza. During a poster session today at the 44th Annual Lunar and Planetary Science Conference at The Woodlands, Texas, Lanza described how the laser-shooting ChemCam instrument aboard the Curiosity rover currently searching the surface of Mars for signs of habitability has shown what appears to be a common feature on the surface of some very different Martian rocks ...

NEW YORK (March 19, 2013) -- Accountable Care Organizations (ACOs), a key feature of the Affordable Care Act (ACA), aim to control health care costs, enhance quality in health care and improve population health. But what does "improving population health" really mean? This is the question asked in a new viewpoint article by Weill Cornell Medical College researchers published in the March 20 issue of the Journal of the American Medical Association (JAMA). The authors argue a clear definition is crucial in order to formulate effective health care and social service policy. Section ...

VIDEO: On Dec. 17, 2012, NASA's twin GRAIL spacecraft were deliberately crashed into the lunar surface traveling at nearly 4,000 mph. Another NASA spacecraft, Lunar Reconnaissance Orbiter, observed the impact using... Click here for more information. Many spacecraft just fade away, drifting silently through space after their mission is over, but not GRAIL. NASA's twin GRAIL (Gravity Recovery and Interior Laboratory) spacecraft went out in a blaze of glory Dec. 17, 2012, ...

VIDEO: Engineers at the Goddard Space Flight Center test the robotic-like fixture that will place the primary mirror segments of the Webb Telescope onto the telescopes back plane. Click here for more information. NASA engineers and scientists have been making practice runs to ensure the placement of primary mirror segments on the James Webb Space Telescope go perfectly when the flight equipment is ready. NASA issued a video and photos showing the practice run in the giant ...

PISCATAWAY, NJ – Some 2-year-olds whose moms used methamphetamine during pregnancy may have an abnormal response to stressful situations, according to a study in the May issue of the Journal of Studies on Alcohol and Drugs. Researchers saw the altered response in toddlers who were exposed to meth in the womb and who currently had signs of strife in their lives—such as a mom who drank heavily or had depression or other mental health symptoms. Specifically, the children's levels of the stress hormone cortisol did not rise as they should have during a tense situation (a ...

CHAPEL HILL, N.C. – Infants at 7 months of age who go on to develop autism are slower to reorient their gaze and attention from one object to another when compared to 7-month-olds who do not develop autism, and this behavioral pattern is in part explained by atypical brain circuits. Those are the findings of a new study led by University of North Carolina School of Medicine researchers and published online March 20 by the American Journal of Psychiatry. "These findings suggest that 7-month-olds who go on to develop autism show subtle, yet overt, behavioral differences ...

CHICAGO --- Selective serotonin reuptake inhibitor (SSRI) antidepressants taken by a woman during pregnancy do not impact her infant's growth over the first year, reports a new study from a Northwestern Medicine scientist. There had been concern that antidepressant treatment during pregnancy reduced growth during the first year. Previous data suggested depression during pregnancy also could diminish infant growth. But the new study showed infants born to mothers who took SSRIs during pregnancy had a similar weight, length and head circumference over the first year ...

(CHICAGO) –Physician-researchers at the Rothman Institute at Jefferson have developed a new, clinically meaningful scale of severity for diagnosing patients with cervical spinal stenosis. Their goal was to create a more accurate scale than the current "mild, moderate or severe" designations used for patients with this condition, a narrowing of the spinal canal in the neck. Researchers sought to create a reproducible, clinically validated classification of central cervical stenosis. The group will present their results on Wednesday, March 20th, at 12:18 pm, McCormick ...

CHICAGO – Smoking has been linked to prolonged healing time and greater risk for complications in orthopaedic and other surgeries, according to a new study presented today at the 2013 Annual Meeting of the American Academy of Orthopaedic Surgeons (AAOS). Researchers reviewed records of all total hip replacement (THR, or total hip arthroplasty) patients between 2007 and 2009 to identify patients who used tobacco products at the time of surgery, or who smoked regularly prior to surgery. There were 110 patients who regularly smoked, with a mean age of 55 and a mean follow ...

Ever since their discovery in 1984, the burgeoning area of research looking at quasiperiodic structures has revealed astonishing opportunities in a number of areas of fundamental and applied research, including applications in lasing and sensing. Quasiperiodic structures, or quasicrystals, because of their unique ordering of atoms and a lack of periodicity, possess remarkable crystallographic, physical and optical properties not present in regular crystals. In the article "Optics of photonic quasicrystals," in the March issue of Nature Photonics, Amit Agrawal, professor ...

Even as the Hispanic population continues to grow rapidly, the residential separation of most Hispanic groups has declined sharply in the last two decades, according to a new analysis of census data released by the US2010 Project at Brown University. The important exception – Mexicans, who are more than half ofthe nation's Hispanics. "This is a surprise, since previous studies dealing with all Hispanics as a single category have repeatedly found no change since 1990," said John R. Logan, co-author of the report and Professor of Sociology at Brown University. "It reminds ...

The cause of unexplained pain among metal-on-metal hip implant patients is more likely to be tissue damage than wear of the implant, Hospital for Special Surgery researchers have found. The study, performed by Dr. Danyal Nawabi, orthopedic surgery fellow, and research collaborators at HSS, will be reported at the upcoming annual meeting of the American Academy of Orthopaedic Surgeons, March 19-23, in Chicago. Researchers set out to determine causes of unexplained pain among patients with metal-on-metal hip implants (in which the ball and socket are both made of metal) ...

The power of a living will: The importance of planning for incapacity Article provided by Susana Lannik Visit us at http://www.lanniklaw.com/ The best defense is a good offense. This saying can apply to many situations throughout life, including planning for unforeseen medical emergencies. Medical emergencies can happen to anyone. A young adult could get into a horrific traffic accident and not be able to communicate their wishes; an elderly person could suffer from dementia. Whatever the cause, taking the time to complete this portion of estate planning by setting ...