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AudioDizer - Custom Phys.org feed for AudioDizer
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Tuatara iconic New Zealand reptile shows chewing is not just for mammals | The tuatara, an iconic New Zealand reptile, chews its food in a way unlike any other animal on the planet challenging the widespread perception that complex chewing ability is closely linked to high metabolism. | 5/29/12 | Free | View In iTunes |
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Study finds emissions from widely used cookstoves vary with use | The smoke rising from a cookstove fills the air with the tantalizing aroma of dinner and a cloud of pollutants and particles that threaten both health and the environment. How families in developing countries use their cookstoves has a big effect on emissions from those stoves, and laboratory emission tests don't accurately reflect real-world operations, according to a study by University of Illinois researchers. | 5/29/12 | Free | View In iTunes |
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Study reveals how the world's first drug for amyloid disease works | Scientists from The Scripps Research Institute and Pfizer Inc. have published a new study showing how a new drug called tafamidis (Vyndaqel) works. Tafamidis, approved for use in Europe and currently under review by the US Food and Drug Administration (FDA), is the first medication approved by a major regulatory agency to treat an amyloid disease, a class of conditions that include Alzheimer's. | 5/29/12 | Free | View In iTunes |
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Nowhere to hide: New device sees bacteria behind the eardrum | Doctors can now get a peek behind the eardrum to better diagnose and treat chronic ear infections, thanks to a new medical imaging device invented by University of Illinois researchers. The device could usher in a new suite of non-invasive, 3-D diagnostic imaging tools for primary-care physicians. | 5/29/12 | Free | View In iTunes |
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Autonomous-driving Volvo convoy takes road in Spain | (Phys.org) -- In the annals of whatever happened to that big idea is the 2009 announcement of road trains linking cars in a convoy, a scheme planned for Europes motorways. The lead vehicle would have the active driver and the rest of the cars in the convoy would be autonomously driven. Someone, possibly with a sense of humor, dubbed the undertaking as the Sartre Project, standing for Safe Road Trains for the Environment. This month comes the report that the idea has been successfully tested and is a step forward in a plan to change the way vehicles travel. | 5/29/12 | Free | View In iTunes |
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Copper-nickel nanowires could be perfect fit for printable electronics | While the Statue of Liberty and old pennies may continue to turn green, printed electronics and media screens made of copper nanowires will always keep their original color. | 5/29/12 | Free | View In iTunes |
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Mathematicians can conjure matter waves inside an invisible hat | Invisibility, once the subject of magic or legend, is slowly becoming reality. Over the past five years mathematicians and other scientists have been working on devices that enable invisibility cloaks perhaps not yet concealing Harry Potter, but at least shielding small objects from detection by microwaves or sound waves. | 5/29/12 | Free | View In iTunes |
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Antioxidant shows promise as treatment for certain features of autism, study finds | A specific antioxidant supplement may be an effective therapy for some features of autism, according to a pilot trial from the Stanford University School of Medicine and Lucile Packard Children's Hospital that involved 31 children with the disorder. | 5/29/12 | Free | View In iTunes |
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Chemical fingerprinting tracks the travels of little brown bats | They're tiny creatures with glossy, chocolate-brown hair, out-sized ears and wings. They gobble mosquitoes and other insect pests during the summer and hibernate in caves and mines when the weather turns cold. They are little brown bats, and a deadly disease called white-nose syndrome is threatening their very existence. | 5/29/12 | Free | View In iTunes |
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Physicists store short movies in an atomic vapor | The storage of light-encoded messages on film and compact disks and as holograms is ubiquitous---grocery scanners, Netflix disks, credit-card images are just a few examples. And now light signals can be stored as patterns in a room-temperature vapor of atoms. Scientists at the Joint Quantum Institute have stored not one but two letters of the alphabet in a tiny cell filled with rubidium (Rb) atoms which are tailored to absorb and later re-emit messages on demand. This is the first time two images have simultaneously been reliably stored in a non-solid medium and then played back. | 5/29/12 | Free | View In iTunes |
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Researchers develop new, safer method for making vaccines | While vaccines are perhaps medicine's most important success story, there is always room for improvement. Researchers at Oregon Health & Science University's Oregon National Primate Research Center (ONPRC) appear to have done just that. As explained in a newly published research paper, Mark Slifka, Ph.D., and colleagues have discovered a new method for creating vaccines that is thought to be safer and more effective than current approaches. The research results are published online in the journal Nature Medicine. | 5/29/12 | Free | View In iTunes |
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New study shows why swine flu virus develops drug resistance | Professor Adrian Mulholland and Dr Christopher Woods from Bristol's School of Chemistry, together with colleagues in Thailand, used graphics processing units (GPUs) to simulate the molecular processes that take place when these drugs are used to treat the H1N1-2009 strain of influenza commonly known as 'swine flu'. | 5/29/12 | Free | View In iTunes |
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Children exposed to the common pollutant naphthalene show signs of chromosomal damage | According to a new study, children exposed to high levels of the common air pollutant naphthalene are at increased risk for chromosomal aberrations (CAs), which have been previously associated with cancer. These include chromosomal translocations, a potentially more harmful and long-lasting subtype of CAs. | 5/29/12 | Free | View In iTunes |
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50-year cholera mystery solved: Answers may help clear the way for a new class of antibiotics | For 50 years scientists have been unsure how the bacteria that gives humans cholera manages to resist one of our basic innate immune responses. That mystery has now been solved, thanks to research from biologists at The University of Texas at Austin. | 5/29/12 | Free | View In iTunes |
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Mutations impair childhood growth and development by disrupting organization of chromosome pairs | Researchers studying rare genetic disorders have uncovered insights into those diseases in biological structures that regulate chromosomes when cells divide. Focusing on the cohesin complex, a group of proteins forming a bracelet that encircles chromosome pairs, scientists have discovered mutations that disrupt cohesin, causing a recently recognized class of diseases called cohesinopathies. | 5/29/12 | Free | View In iTunes |
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Diabetes drug could be a promising therapy for traumatic brain injury | Although the death toll is relatively low for people who suffer from traumatic brain injury (TBI), it can have severe, life-long consequences for brain function. TBI can impair a patient's mental abilities, impact memory and behavior, and lead to dramatic personality changes. And long-term medical treatment carries a high economic cost. | 5/29/12 | Free | View In iTunes |
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New federal disclosure law may have little impact on drugs prescribed | A Colorado School of Public Health researcher has found that laws designed to illuminate financial links between doctors and pharmaceutical companies have little or no effect on what drugs physicians prescribe. | 5/29/12 | Free | View In iTunes |
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Cancerous tumors deliver pro-metastatic information in secreted vesicles | Cancer researchers have known for well over a century that different tumor types spread only to specific, preferred organs. But no one has been able to determine the mechanisms of organ specific metastasis, the so-called "soil and seed" theory of 1889. New details that could help shed light on this hypothesis have been provided by a team of researchers from Weill Cornell Medical College, Memorial Sloan-Kettering Cancer Center, and their collaborators, proposing a new mechanism controlling cancer metastasis that offers fresh diagnostic and treatment potential. | 5/29/12 | Free | View In iTunes |
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Scientists discover gene which causes rare disease in babies | A rare disease which often first presents in newborn babies has been traced to a novel genetic defect, scientists at Queen Mary, University of London have found. | 5/29/12 | Free | View In iTunes |
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Ghostly gamma-ray beams blast from Milky Way's center | (Phys.org) -- As galaxies go, our Milky Way is pretty quiet. Active galaxies have cores that glow brightly, powered by supermassive black holes swallowing material, and often spit twin jets in opposite directions. In contrast, the Milky Way's center shows little activity. But it wasn't always so peaceful. New evidence of ghostly gamma-ray beams suggests that the Milky Way's central black hole was much more active in the past. | 5/29/12 | Free | View In iTunes |
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Irish mathematicians explain why Guinness bubbles sink | (Phys.org) -- Why do the bubbles in a glass of stout beer such as Guinness sink while the beer is settling, even though the bubbles are lighter than the surrounding liquid? Thats been a puzzling question until now, as a team of mathematicians from the University of Limerick has shown that the sinking bubbles result from the shape of a pint glass, which narrows downwards and causes a circulation pattern that drives both fluid and bubbles downwards at the wall of the glass. So its not just the bubbles themselves that are sinking (in fact, they're still trying to rise), but the entire fluid is sinking and pulling the bubbles down with it. | 5/29/12 | Free | View In iTunes |
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STeleR study: Telerehab improves functioning after stroke | Researchers led by Regenstrief Institute investigator Neale Chumbler, Ph.D., a research scientist with the Center of Excellence on Implementing Evidence-Based Practice at the Richard Roudebush VA Medical Center in Indianapolis, have developed STeleR, a home telerehabilitation program that they report improves lower body physical functioning after a stroke. Participating in STeleR also increased the likelihood of maintaining a regular fitness routine, enhanced money management skills, and improved the capability to prepare meals and take care of personal needs such as bathing. | 5/29/12 | Free | View In iTunes |
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World's largest release of comprehensive human cancer genome data helps speed discoveries | To speed progress against cancer and other diseases, the St. Jude Children's Research Hospital Washington University Pediatric Cancer Genome Project today announced the largest-ever release of comprehensive human cancer genome data for free access by the global scientific community. The amount of information released more than doubles the volume of high-coverage, whole genome data currently available from all human genome sources combined. This information is valuable not just to cancer researchers, but also to scientists studying almost any disease. | 5/29/12 | Free | View In iTunes |
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Discovery of historical photos sheds light on Greenland ice loss | A chance discovery of 80-year-old photo plates in a Danish basement is providing new insight into how Greenland glaciers are melting today. | 5/29/12 | Free | View In iTunes |
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New HIV-inhibiting protein identified | Scientists have identified a new HIV-suppressing protein in the blood of people infected with the virus. In laboratory studies, the protein, called CXCL4 or PF-4, binds to HIV such that it cannot attach to or enter a human cell. The research was led by Paolo Lusso, M.D., Ph.D., chief of the Section of Viral Pathogenesis in the Laboratory of Immunoregulation at the National Institute of Allergy and Infectious Diseases (NIAID), part of NIH. | 5/29/12 | Free | View In iTunes |
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New discovery could lead to new way to screen drugs for adverse reactions | Adverse drug reactions are a major issue that cause harm, are costly and restrict treatment options for patients and the development of new drugs. A groundbreaking finding by researchers from the La Jolla Institute for Allergy & Immunology could lead to a new way to dramatically improve drug safety by identifying drugs at risk to cause potentially fatal genetic-linked hypersensitivity reactions before their use in man. | 5/29/12 | Free | View In iTunes |
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Too much vitamin D can be as unhealthy as too little | Scientists know that Vitamin D deficiency is not healthy. However, new research from the University of Copenhagen now indicates that too high a level of the essential vitamin is not good either. The study is based on blood samples from 247,574 Copenhageners. The results have just been published in the reputed scientific Journal of Clinical Endocrinology and Metabolism. | 5/29/12 | Free | View In iTunes |
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Efficient preparation of a set of potential glycosidase inhibitors | (Phys.org) -- In many biological and pathological processes, glycosidase enzymes attack glycosidic bonds in carbohydrates, glycoproteins, and glycolipids. The ability to modify or block these processes by specific glycosidase inhibitors forms the basis for their potential use in the treatment of viral infections, cancer, and genetic disorders. | 5/29/12 | Free | View In iTunes |
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Scientists take steps toward creating artificial graphene | (Phys.org) -- Researchers first observed graphene in 2004 by extracting the single-atom-thick sheets of carbon from bulk graphite. While graphene’s electrical and optical properties have proven to have extraordinary potential for many applications, creating atomically precise structures out of graphene remains challenging. In an effort to improve graphene’s usability, scientists have been searching for a way to fabricate artificial graphene, which could serve as a helpful structure where devices can be easily tested before their implementation with natural graphene. Now in a new study, scientists have identified all the main criteria required to make artificial graphene, which could provide a guide for experimentally realizing the material. | 5/29/12 | Free | View In iTunes |
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New findings shift research direction in lupus and asthma | (Medical Xpress) -- Newfound details of the immune system suggest a role for never-before-considered drug classes in the treatment of allergic and autoimmune diseases, according to a University of Alabama at Birmingham study published online today in Nature Immunology. | 5/29/12 | Free | View In iTunes |
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Lenovo applies for a patent for a grip tablet keyboard | (Phys.org) -- With the introduction of the tablet computer, users of such devices have been forced to make some tradeoffs regarding keyboards. Virtually all tablets make use of image display and finger touching or tapping to create a virtual keyboard, which for many, is not nearly the same as one that provides the tactile feedback of keys being pressed and released. To get around this, many have resorted to purchasing wireless keyboards, which do offer the ease of typing, but detract from the portability that is so critical to the tablet experience. Now, according to Patentbolt, Chinese hardware maker Lenovo has applied for a patent that gives users the best of both worlds. | 5/29/12 | Free | View In iTunes |
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Robotic jellyfish could one day patrol oceans, clean oil spills, and detect pollutants | (Phys.org) -- Virginia Tech College of Engineering researchers are working on a multi-university, nationwide project for the U.S. Navy that one day will put life-like autonomous robot jellyfish in waters around the world. | 5/29/12 | Free | View In iTunes |
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Teenager reportedly finds solution to 350 year old math and physics problem | (Phys.org) -- In Isaac Newton's Principia Mathematica published in 1687, the man many consider the most brilliant mathematician of all time used a mathematical formula to describe the path taken by an object when it is thrown through the air from one point to the next, i.e. an arc based on several factors such as the angle it is thrown at, velocity, etc. At the time, Newton explained that to get it completely right though, air resistance would need to be taken into account, though he could not figure out himself how to factor that in. Now, it appears a 16 year old immigrant to Germany has done just that, and to top off his work, hes also apparently come up with an equation that describes the motion of an object when it strikes an immobile surface such as a wall, and bounces back. | 5/29/12 | Free | View In iTunes |
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Night shift might boost women's breast cancer risk: study | (HealthDay) -- Women who work the night shift more than twice a week might be increasing their risk for breast cancer, Danish researchers find. | 5/29/12 | Free | View In iTunes |
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Research reveals the truth behind the evil eyebrows of a cartoon villain | (Medical Xpress) -- New research from the University of Warwick could explain why the evil eyebrows and pointy chin of a cartoon villain make our threat instinct kick in. | 5/29/12 | Free | View In iTunes |
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Pecking orders not just for the birds | (Medical Xpress) -- Despite our inclination to believe equality within a team or group is important, new research suggests that a built-in hierarchy leads to fewer group conflicts and higher productivity. | 5/29/12 | Free | View In iTunes |
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New type of biosensor is fast, super-sensitive | (Phys.org) -- A whole new class of biosensor that can detect exceptionally small traces of contaminants in liquids in just 40 minutes has been developed by a UNSW-led team of researchers. | 5/29/12 | Free | View In iTunes |
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LG Display will release HD panel for smartphones | (Phys.org) -- LG Display is getting ready to showcase a five-inch smartphone display that turns out to be a full HD LCD panel supporting up to 1080p video, something like having a high-quality TV in your hand. The display will allow smartphone users to view full HD content with ideal viewing as seen on TVs and monitors and will set a high bar for other manufacturers as a result. The Seoul, Korea-based company has announced the new display with 1920x1080 resolution and impressive pixel density of 440ppi. | 5/29/12 | Free | View In iTunes |
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Commonly used painkillers may protect against skin cancer | A new study suggests that aspirin and other similar painkillers may help protect against skin cancer. Published early online in Cancer, a peer-reviewed journal of the American Cancer Society, the findings indicate that skin cancer prevention may be added to the benefits of these commonly used medications. | 5/29/12 | Free | View In iTunes |
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Blowing in the wind: How hidden flower features are crucial for bees | As gardeners get busy filling tubs and borders with colourful bedding plants, scientists at the Universities of Cambridge and Bristol have discovered more about what makes flowers attractive to bees rather than humans. Published today in the British Ecological Society's journal Functional Ecology, their research reveals that Velcro-like cells on plant petals play a crucial role in helping bees grip flowers especially when the wind gets up. | 5/28/12 | Free | View In iTunes |
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Discovery promises unique medicine for treatment of chronic and diabetic wounds | A unique new medicine that can start and accelerate healing of diabetic and other chronic wounds is being developed at Umeå University in Sweden. After several years of successful experimental research, it is now ready for clinical testing. | 5/28/12 | Free | View In iTunes |
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Nanoparticles cut off 'addicted' tumors from source of their survival | (Medical Xpress) -- Yale biologists and engineers have designed drug-loaded nanoparticles that target the soft underbelly of many types of cancer a tiny gene product that tumors depend upon to replicate and survive. | 5/28/12 | Free | View In iTunes |
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Global wave of Flame cyber attacks called staggering | (Phys.org) -- Kaspersky Lab has discovered complex malware that has been in operation for at least five years, collecting data from countries including both Israel and Iran. Kaspersky experts think the masterminds are state-sponsored but have come short of short of naming exact origins. The malicious program is detected as Worm.Win32.Flame by Kaspersky Labs security products. The UN International Telecommunication Union has worked with Kaspersky Lab in the investigation, which finds that individuals, businesses, academic institutions and government systems have been hit. The total number of targets is an estimated 600. | 5/28/12 | Free | View In iTunes |
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HRT update: therapy may reduce fractures, boost some risks | (HealthDay) -- Updated evidence on hormone replacement therapy for menopausal women presents good news for those at risk of osteoporosis, but a mixed bag of results regarding breast cancer and other chronic diseases. | 5/28/12 | Free | View In iTunes |
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Aggressively controlling glucose levels may not reduce kidney failure in Type 2 diabetes | A review of data from seven clinical trials suggests that intensive glucose control is associated with reduced risk of microalbuminuria and macroalbuminuria (conditions characterized by excessive levels of protein in the urine usually resulting from damage to the filtering units of the kidneys), according to a report published in the May 28 issue of Archives of Internal Medicine, a JAMA Network publication. | 5/28/12 | Free | View In iTunes |
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Less couch time equals fewer cookies: Just two simple changes in health behavior spurs big results | Simply ejecting your rear from the couch means your hand will spend less time digging into a bag of chocolate chip cookies. | 5/28/12 | Free | View In iTunes |
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One size doesn't fit all when treating blood pressure in people with diabetes, study suggests | Aggressive efforts to lower blood pressure in people with diabetes are paying off perhaps too well, according to a new study | 5/28/12 | Free | View In iTunes |
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Working with solvents tied to cognitive problems for less-educated people | Exposure to solvents at work may be associated with reduced thinking skills later in life for those who have less than a high school education, according to a study published in the May 29, 2012, print issue of Neurology, the medical journal of the American Academy of Neurology. | 5/28/12 | Free | View In iTunes |
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Analyzing disease transmission at the community level | Researchers at the Johns Hopkins Bloomberg School of Public Health have found evidence of a role for neighborhood immunity in determining risk of dengue infection. While it is established that immunity can be an important factor in the large-scale distribution of disease, this study demonstrates that local variation at spatial scales of just a few hundred meters can significantly alter the risk of infection, even in a highly mobile and dense urban population with significant immunity. The study is published in May 28 edition of the journal PNAS. | 5/28/12 | Free | View In iTunes |
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Researchers conclude that climate change led to collapse of ancient Indus civilization | A new study combining the latest archaeological evidence with state-of-the-art geoscience technologies provides evidence that climate change was a key ingredient in the collapse of the great Indus or Harappan Civilization almost 4000 years ago. The study also resolves a long-standing debate over the source and fate of the Sarasvati, the sacred river of Hindu mythology. | 5/28/12 | Free | View In iTunes |
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Targeting tuberculosis 'hotspots' could have widespread benefit: study | Reducing tuberculosis transmission in geographic "hotspots" where infections are highest could significantly reduce TB transmission on a broader scale, according to a study led by researchers at the Johns Hopkins Bloomberg School of Public Health. An analysis of data from Rio de Janeiro showed that a reduction in TB infections within three high-transmission hotspots could reduce citywide transmission by 9.8 percent over 5 years, and as much as 29 percent over 50 years. The study was published May 28 by the journal PNAS. | 5/28/12 | Free | View In iTunes |
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Study proposes isotope analysis for earlier detection of bone loss | Are your bones getting stronger or weaker? Right now, it's hard to know. Scientists at Arizona State University and NASA are taking on this medical challenge by developing and applying a technique that originated in the Earth sciences. In a new study, this technique was more sensitive in detecting bone loss than the X-ray method used today, with less risk to patients. Eventually, it may find use in clinical settings, and could pave the way for additional innovative biosignatures to detect disease. | 5/28/12 | Free | View In iTunes |
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New study finds earliest evidence yet of differential access to land | Hereditary inequality began over 7,000 years ago in the early Neolithic era, with new evidence showing that farmers buried with tools had access to better land than those buried without. | 5/28/12 | Free | View In iTunes |
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New stem cell technique promises abundance of key heart cells cardiomyocytes | Cardiomyocytes, the workhorse cells that make up the beating heart, can now be made cheaply and abundantly in the laboratory. | 5/28/12 | Free | View In iTunes |
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Groundwater depletion in semiarid regions of Texas and California threatens US food security | The nation's food supply may be vulnerable to rapid groundwater depletion from irrigated agriculture, according to a new study by researchers at The University of Texas at Austin and elsewhere. | 5/28/12 | Free | View In iTunes |
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Engineered microvessels provide a 3-D test bed for human diseases | Mice and monkeys don't develop diseases in the same way that humans do. Nevertheless, after medical researchers have studied human cells in a Petri dish, they have little choice but to move on to study mice and primates. | 5/28/12 | Free | View In iTunes |
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Researchers gain new insights into structure of heart muscle fibers | A study led by researchers from McGill University provides new insights into the structure of muscle tissue in the heart a finding that promises to contribute to the study of heart diseases and to the engineering of artificial heart tissue. | 5/28/12 | Free | View In iTunes |
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Physicists devise method for building artificial tissue | New York University physicists have developed a method that models biological cell-to-cell adhesion that could also have industrial applications. | 5/28/12 | Free | View In iTunes |
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Video games positively impact variety of health outcomes | (HealthDay) -- Although additional rigorous clinical trials are warranted, the literature suggests that video games can be useful in improving a variety of health outcomes, particularly those in the areas of psychological and physical therapy, according to research published online in the June issue of the American Journal of Preventive Medicine. | 5/28/12 | Free | View In iTunes |
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Country cousins: Climate connections and land urbanization dynamics | (Phys.org) -- What’s in a name? Quite a bit in climate science, where the term teleconnection refers not to digital communications, but rather to a recurring and persistent large-scale pattern of pressure and circulation anomalies that spans vast geographical areas. Recently, environmental researchers at Yale School of Forestry & Environmental Studies reframed the discussion around the linkages between land changes and underlying urbanization dynamics by introducing urban land teleconnections as a conceptual framework for studying the multivariate nature of these processes in an integrated and productive manner. | 5/28/12 | Free | View In iTunes |
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The anatomy of a stellar outflow | (Phys.org) -- Astronomers used to think that star formation simply involved the gradual coalescence of material under the influence of gravity. No longer. Making a new star is a complex process, among other things assembling a circumstellar disk (possibly preplanetary in nature) and at the same time ejecting material as bipolar jets perpendicular to those disks. These outflows help the young star balance its growth as new material accretes, but at the same time they disrupt the environment. Although jets from young stars have been known for over twenty years, their influences on the environment have remained uncertain, in part because the dusty natal clouds in which stars form obscure optical light. | 5/28/12 | Free | View In iTunes |
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Company uses Kinect to create a touchscreen out of any surface | (Phys.org) -- Ubi Interactive has developed a display system that will convert virtually any surface to a touchscreen display using a conventional projector, a Microsoft Kinect device, and proprietary software running on a Windows based computer. The company, which is currently just three guys, Anup Chathoth, David Hajizadeh and Chao Zhang, is one of eleven startups that have been given $20,000 by Microsoft to develop Kinect based applications. | 5/28/12 | Free | View In iTunes |
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New study finds titan cells protect Cryptococcus | Giant cells called "titan cells" protect the fungus Cryptococcus neoformans during infection, according to two University of Minnesota researchers. Kirsten Nielsen, Ph.D., an assistant professor in the department of microbiology, and recent Ph.D. recipient Laura Okagaki believe their discovery could help develop new ways to fight infections caused by Cryptococcus. | 5/28/12 | Free | View In iTunes |
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Puzzling asymmetries in B decays hint at deviations from the Standard Model | (Phys.org) -- In a recently published paper, the LHCb Collaboration has reported on a possible deviation from the Standard Model. Theorists are now working to calculate precisely this effect and to evaluate the implications that such unexpected result could have on the established theory. | 5/28/12 | Free | View In iTunes |
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A way to reduce the Internet's energy drain | (Phys.org) -- Swiss researchers at EPFL have developed a device intended for monitoring and saving the energy consumed by large data centers. It was developed in collaboration with Credit Suisse, which has used it to equip the power of its server racks. | 5/28/12 | Free | View In iTunes |
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Hubble sees a spiral within a spiral | (Phys.org) -- NASA's Hubble Space Telescope captured this image of the spiral galaxy known as ESO 498-G5. One interesting feature of this galaxy is that its spiral arms wind all the way into the center, so that ESO 498-G5's core looks like a bit like a miniature spiral galaxy. This sort of structure is in contrast to the elliptical star-filled centers (or bulges) of many other spiral galaxies, which instead appear as glowing masses. | 5/28/12 | Free | View In iTunes |
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Antidepressants -- not depression -- increase risk of preterm birth, study shows | (Medical Xpress) -- Women who are depressed during pregnancy are not at higher risk of giving birth prematurely than non-depressed women but those who take antidepressants during pregnancy seem to be, a new study by Yale researchers shows. | 5/28/12 | Free | View In iTunes |
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New research suggests apes have human-like personalities | (Phys.org) -- For as long as people have coexisted with other animals, they have debated amongst themselves whether some animals have some of the same personality traits as humans or if its just anthropomorphism at work. Many believe dogs, for example, have unique personalities, e.g. a cranky disposition, laziness, or even signs of neuroticism. More recently researchers have argued over whether apes, which of course are much closer to us in most ways, are able to feel the things we feel and whether they have different personalities between them, as we people do, and if so, if they are like ours. | 5/28/12 | Free | View In iTunes |
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Cancer treatment discovery opens tumours to immune cells | (Medical Xpress) -- Scientists at the Western Australian Institute for Medical Research (WAIMR) have made exciting progress in their quest to help patients fight cancer using the body's own immune system.The Perth-based team - led by internationally renowned cancer researcher Professor Ruth Ganss - has published a paper on their discoveries in the US scientific journal Proceedings of the National Academy of Sciences. | 5/28/12 | Free | View In iTunes |
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Engineered cornea more resistant to chemical injury | (Medical Xpress) -- A new study from the University of Reading has established that a prosthetic cornea made from human cells is the best model for testing how irritants and toxins cause eye injuries. | 5/28/12 | Free | View In iTunes |
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Graphene on boron nitride work may lead to breakthrough in microchip technology | (Phys.org) -- Graphene is the wonder material that could solve the problem of making ever faster computers and smaller mobile devices when current silicon microchip technology hits an inevitable wall. Graphene, a single layer of carbon atoms in a tight hexagonal arrangement, has been highly researched because of its incredible electronic properties, with theoretical speeds 100 times greater than silicon. But putting the material into a microchip that could outperform current silicon technology has proven difficult. | 5/28/12 | Free | View In iTunes |
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NHK shows downsized Super Hi-Vision video camera | (Phys.org) -- NHK this week placed on exhibit a shoulder-mount camera, developed in cooperation with Hitachi, capable of shooting what NHK calls super high vision (SHV) video in 7680×4320 resolution. Super Hi-Vision is NHK's preferred name for ultra high definition television (UHDTV). The powerful prototype was part of NHK Scientific & Technology Research Laboratories (STRL) Open House event in Japan earlier this week. The camera is an innovative development, as a compact Ultra High Definition camera using a single-chip color imaging sensor to produce closest to being there video. NHK says that the compact head is compatible with commercially-offered still camera lenses. | 5/28/12 | Free | View In iTunes |
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Many still tanning, despite dangers, survey finds | (HealthDay) -- Despite public education efforts, many young adults still don't understand the dangers of sun exposure and tanning, a new U.S. survey finds. | 5/28/12 | Free | View In iTunes |
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Stunning image of smallest possible five-ringed structure | Scientists have created and imaged the smallest possible five-ringed structure about 100,000 times thinner than a human hair and you'll probably recognise its shape. | 5/27/12 | Free | View In iTunes |
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Land and sea species differ in climate change response: study | (Phys.org) -- Marine and terrestrial species will likely differ in their responses to climate warming, new research by Simon Fraser University and Australia’s University of Tasmania has found. | 5/27/12 | Free | View In iTunes |
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'Unzipped' carbon nanotubes could help energize fuel cells, batteries | Multi-walled carbon nanotubes riddled with defects and impurities on the outside could replace some of the expensive platinum catalysts used in fuel cells and metal-air batteries, according to scientists at Stanford University. Their findings are published in the May 27 online edition of the journal Nature Nanotechnology. | 5/27/12 | Free | View In iTunes |
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T cells 'hunt' parasites like animal predators seek prey, study shows | By pairing an intimate knowledge of immune-system function with a deep understanding of statistical physics, a cross-disciplinary team at the University of Pennsylvania has arrived at a surprising finding: T cells use a movement strategy to track down parasites that is similar to strategies that predators such as monkeys, sharks and blue-fin tuna use to hunt their prey. | 5/27/12 | Free | View In iTunes |
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Same gene that stunts infants' growth also makes them grow too big: research | UCLA geneticists have identified the mutation responsible for IMAGe* syndrome, a rare disorder that stunts infants' growth. The twist? The mutation occurs on the same gene that causes Beckwith-Wiedemann syndrome, which makes cells grow too fast, leading to very large children. | 5/27/12 | Free | View In iTunes |
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Yale study concludes public apathy over climate change unrelated to science literacy | Are members of the public divided about climate change because they don't understand the science behind it? If Americans knew more basic science and were more proficient in technical reasoning, would public consensus match scientific consensus? | 5/27/12 | Free | View In iTunes |
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Computer model used to pinpoint prime materials for efficient carbon capture | When power plants begin capturing their carbon emissions to reduce greenhouse gases and to most in the electric power industry, it's a question of when, not if it will be an expensive undertaking. | 5/27/12 | Free | View In iTunes |
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Scientists develop ultra-sensitive test that detects diseases in their earliest stages | Scientists have developed an ultra-sensitive test that should enable them to detect signs of a disease in its earliest stages, in research published today in the journal Nature Materials. | 5/27/12 | Free | View In iTunes |
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Manufacturing genes to attack flu virus | An international research team has manufactured a new protein that can combat deadly flu epidemics. | 5/27/12 | Free | View In iTunes |
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10 million years needed to recover from mass extinction | (Phys.org) -- It took some 10 million years for Earth to recover from the greatest mass extinction of all time, latest research has revealed. | 5/27/12 | Free | View In iTunes |
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Change in developmental timing was crucial in the evolutionary shift from dinosaurs to birds: study | At first glance, it's hard to see how a common house sparrow and a Tyrannosaurus Rex might have anything in common. After all, one is a bird that weighs less than an ounce, and the other is a dinosaur that was the size of a school bus and tipped the scales at more than eight tons. | 5/27/12 | Free | View In iTunes |
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Nvidia trumpets Tegra 3 phone design wins for 2012 | (Phys.org) -- Nvidias competitive war paint has a name, Tegra 3. On the heels of Nvidia announcements about lowering costs of its Tegra 3 processors and Nvidia-enabled tablets running Android Ice Cream Sandwich at $199, Nvidia this week made more Tegra 3 strategy headway, this time issuing announcements for smartphones. The company said that 30 smartphones based on its Tegra 3 system on a chip will be out this year. This is double the number of design wins on Tegra 2 last year. | 5/27/12 | Free | View In iTunes |
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Dell tablet leak: 10.1-inch display, two-battery choice | (Phys.org) -- Headline after headline talks about vendors tablets in the wings as likely number-one contenders for the iPad. Such claims have justifiably been taken with a grain of salt, considering iPads continued market success. This week, though, leaked specs on the Dell latitude 10.are convincing many to claims that this may be the one to shake things up in the tablet space. The Dell Latitude 10 will have a 10.1-inch display, HD capacitive and multi-touch screen at 1366 x 768 resolution. As per Neowin, this will be a Dell Latitude 10 Windows 8 tablet. Microsoft is expected to launch its Windows 8 operating system late 2012, and some reports bet on October. | 5/26/12 | Free | View In iTunes |
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SpotterRF debuts Radar Backpack Kit | (Phys.org) -- SpotterRF has announced a special radar backpack kit designed to enhance situational awareness for soldiers on the ground. The company says its special radar is designed for warfighters as part of small expeditionary groups in austere and remote locations across the world. The company provides small and easy to use surveillance radar, the Spotter M600, for use by these soldiers. The military backpack kit announced this month is called Spotter Radar Backpack Kit (RBK). | 5/26/12 | Free | View In iTunes |
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Travel to high altitudes tied to Crohn's, colitis flare-ups | (HealthDay) -- People with inflammatory bowel disease, which includes Crohn's disease and colitis, may be at increased risk for flare-ups when they fly or travel to high altitudes for skiing or mountain climbing, a new study suggests. | 5/26/12 | Free | View In iTunes |
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Tongue analysis software uses ancient Chinese medicine to warn of disease | For 5,000 years, the Chinese have used a system of medicine based on the flow and balance of positive and negative energies in the body. In this system, the appearance of the tongue is one of the measures used to classify the overall physical status of the body, or zheng. Now, University of Missouri researchers have developed computer software that combines the ancient practices and modern medicine by providing an automated system for analyzing images of the tongue. | 5/25/12 | Free | View In iTunes |
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It's in the genes: Research pinpoints how plants know when to flower | Scientists believe they've pinpointed the last crucial piece of the 80-year-old puzzle of how plants "know" when to flower. | 5/25/12 | Free | View In iTunes |
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High-speed method to aid search for solar energy storage catalysts | Eons ago, nature solved the problem of converting solar energy to fuels by inventing the process of photosynthesis. | 5/25/12 | Free | View In iTunes |
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Researchers solve structure of human protein critical for silencing genes | In a study published in the journal Cell on May 24, Cold Spring Harbor Laboratory (CSHL) scientists describe the three-dimensional atomic structure of a human protein bound to a piece of RNA that "guides" the protein's ability to silence genes. The protein, Argonaute-2, is a key player in RNA interference (RNAi), a powerful cellular phenomenon that has important roles in diverse biological processes, including an organism's development. | 5/25/12 | Free | View In iTunes |
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Math predicts size of clot-forming cells | UC Davis mathematicians have helped biologists figure out why platelets, the cells that form blood clots, are the size and shape that they are. Because platelets are important both for healing wounds and in strokes and other conditions, a better understanding of how they form and behave could have wide implications. | 5/25/12 | Free | View In iTunes |
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Early physical therapist treatment associated with reduced risk of healthcare utilization and reduced overall healthcare | A new study published in Spine shows that early treatment by a physical therapist for low back pain (LBP), as compared to delayed treatment, was associated with reduced risk of subsequent healthcare utilization and lower overall healthcare costs. | 5/25/12 | Free | View In iTunes |
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Skp2 activates cancer-promoting, glucose-processing Akt | HER2 and its epidermal growth factor receptor cousins mobilize a specialized protein to activate a major player in cancer development and sugar metabolism, scientists report in the May 25 issue of Cell. | 5/25/12 | Free | View In iTunes |
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New device allows pacemaker patients to safely undergo MRIs | For many, it's a medical conundrum: The very pacemaker keeping their heart in rhythm prevents them from undergoing an MRI to diagnose other ailments, because interaction between the two devices could prove deadly. | 5/25/12 | Free | View In iTunes |
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Cancer may require simpler genetic mutations than previously thought | Chromosomal deletions in DNA often involve just one of two gene copies inherited from either parent. But scientists haven't known how a deletion in one gene from one parent, called a "hemizygous" deletion, can contribute to cancer. | 5/25/12 | Free | View In iTunes |
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Copy of the genetic makeup travels in a protein suitcase | Scientists from the Institute for Physical and Theoretical Chemistry at the University of Bonn have succeeded for the first time in the real time filming of the transport of an important information carrier in biological cells that is practically unmodified. This paper has now been published in the highly regarded journal Proceedings of the National Academy of Sciences. | 5/25/12 | Free | View In iTunes |
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Inherited DNA change explains overactive leukemia gene | A small inherited change in DNA is largely responsible for overactivating a gene linked to poor treatment response in people with acute leukemia. | 5/25/12 | Free | View In iTunes |
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Implantable pain disk may help those with cancer | An estimated 3.5 million cancer patients around the globe are in severe pain from their disease, but many get no relief. | 5/25/12 | Free | View In iTunes |
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First study to suggest that the immune system may protect against Alzheimer's changes in humans | Recent work in mice suggested that the immune system is involved in removing beta-amyloid, the main Alzheimer's-causing substance in the brain. Researchers have now shown for the first time that this may apply in humans. | 5/25/12 | Free | View In iTunes |
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Physicians definitively links irritable bowel syndrome and bacteria in gut | An overgrowth of bacteria in the gut has been definitively linked to Irritable Bowel Syndrome in the results of a new Cedars-Sinai study which used cultures from the small intestine. This is the first study to use this "gold standard" method of connecting bacteria to the cause of the disease that affects an estimated 30 million people in the United States. | 5/25/12 | Free | View In iTunes |
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MIT researchers devise new means to synchronize a group of robots | (Phys.org) -- For several years, roboticists have been working out ways to get a group of robots to perform synchronized activities as demonstrated most often in dance routines. Its not just about trying to create humanoid machines that can better entertain us though, its about getting them to perform simple small scale synchronized activities so that a means can be found to scale up such activities so that robots of the future can work together to autonomously accomplish certain goals that have been defined by their human masters. To that end, MIT researchers Patrick Bechon and Jean-Jacques Slotine have been studying ways to mimic so called quorum sensing, which some organisms use to figure out how many of their own kind are around, and then to perform actions based on it. The two have applied this principal to small dancing robots, to stunning effect. They have written a paper describing what they have learned and posted it on the preprint server arXiv. | 5/25/12 | Free | View In iTunes |
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Of mice and mental models: Neuroscientific implications of risk-optimized behavior in the mouse | (Medical Xpress) -- Regardless of an organism’s biological complexity, every encephalized animal continuously makes under-informed behavioral choices that can have serious consequences. Despite its ubiquity, however, there’s a long-standing question about its neurological basis – namely, whether these choices are made through probabilistic world models constructed by the brain, or by reinforcement of learned associations. Recently, however, scientists in the Department of Psychology at Rutgers University found that reinforcement cannot account for the rapidity with which mice modify their behavior when the chance of a given phenomenon changes. The researchers say this indicates that mice may have primordially-evolved neural capabilities to represent likelihood and perform calculations that optimize their resulting behavior – and therefore that such genetic mechanisms can be investigated and manipulated by genetic and other procedures. | 5/25/12 | Free | View In iTunes |
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Questionable research practices surprisingly common | (Medical Xpress) -- Not all scientific misconduct is flat-out fraud. Much falls into the murkier realm of questionable research practices. A new study finds that in one field, psychology, these practices are surprisingly common. The survey of more than 2,000 research psychologists, published in Psychological Science, a journal of the Association for Psychological Science, finds that most have engaged in at least one of the questionable practices at some point in their career. | 5/25/12 | Free | View In iTunes |
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Researchers demonstrate possible primitive mechanism of chemical info self-replication | (Phys.org) -- When scientists think about the replication of information in chemistry, they usually have in mind something akin to what happens in living organisms when DNA gets copied: a double-stranded molecule that contains sequence information makes two new copies of the molecule. But researchers at the California Institute of Technology (Caltech) have now shown that a different mechanism can also be used to copy sequence information. | 5/25/12 | Free | View In iTunes |
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Researchers identify key brain cell in antidepressant action | (Medical Xpress) -- Antidepressant medications such as Prozac have helped improve mood and lessen anxiety in millions of people with major depression. But scientists know surprisingly little about how these drugs work. | 5/25/12 | Free | View In iTunes |
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Building a better solar panel -- one molecule at a time | (Phys.org) -- One of the fundamental building blocks in modern chemistry, an organometallic chemical compound called ferrocene, has never been structurally defined - until now. | 5/25/12 | Free | View In iTunes |
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Landmark calculation clears the way to answering how matter is formed | (Phys.org) -- An international collaboration of scientists, including Thomas Blum, associate professor of physics, is reporting in landmark detail the decay process of a subatomic particle called a kaon information that may help answer fundamental questions about how the universe began. | 5/25/12 | Free | View In iTunes |
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Routine care for Crohn's disease in children should include measurement of bone age | (Medical Xpress) -- Measuring bone age should be a standard practice of care for pediatric patients with Crohns disease, in order to properly interpret growth status and improve treatment, according to a new study from the UCSF Benioff Childrens Hospital. | 5/25/12 | Free | View In iTunes |
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Synthetic nano-waste does not disappear | (Phys.org) -- Tiny particles of cerium oxide do not burn or change in the heat of a waste incineration plant. They remain intact on combustion residues or in the incineration system, as a new study by Swiss researchers from ETH Zurich reveals. | 5/25/12 | Free | View In iTunes |
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Rockefeller scientists pioneer new method to determine mechanisms of drug action | (Medical Xpress) -- Knowing that a drug works is great. Knowing how it works is a luxury. And until now, determining a drugs mechanism of action has been a tedious and difficult process for scientists. | 5/25/12 | Free | View In iTunes |
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Study uncovers secret to speedy burrowing by razor clams | (Phys.org) -- If you look at a razor burrowing clam sitting in a bucket, youd never guess that it could burrow itself down into the soil, much less do it with any speed. Razor clams look like fat straws, or sawed off tusks; not very exciting. But set one down in the water, and it can burrow down into the sand to about two and a half feet deep in just a couple of minutes. Pretty impressive stuff, especially considering, as a team of researchers has found, that the muscle the clams use for burrowing just isnt strong enough to accomplish the deed. To manage the speedy descent the team found, the razor burrowing clam causes changes to the sand below it as it descends. They have written a paper on their findings which has been published in the Journal of Experimental Biology. | 5/25/12 | Free | View In iTunes |
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Progestin treatment for polycystic ovarian syndrome may reduce pregnancy chances | (Medical Xpress) -- The hormone progestin, often given as a first step in infertility treatment for polycystic ovary syndrome (PCOS), appears to decrease the odds of conception and of giving birth, according to a study by a National Institutes of Health research network. | 5/25/12 | Free | View In iTunes |
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OmniVision tops up sensors for cameras, phones | (Phys.org) -- OmniVision has announced two high-resolution image sensors for the digital still and digital video camera market (DS/DVC) and higher end smartphones. In end-user language, it is a claim for superior quality visuals for digital video cameras and top of the line mobile phones. The company sees its marketplace comfortably split between those end users who hold on to their cameras and those who turn to smartphones for neat imaging features. The newly announced high-resolution mobile sensors can capture 4K2K video. The 16-megapixel camera sensors are part-number dubbed the OV16820 and OV16825. | 5/25/12 | Free | View In iTunes |
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Computers excel at identifying smiles of frustration | (Phys.org) -- Researchers at the Massachusetts Institute of Technology (MIT) in the US have trained computers to recognize smiles, and they have turned out to be more adept at recognizing smiles of frustration than humans. | 5/25/12 | Free | View In iTunes |
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Like curry? New biological role identified for compound used in ancient medicine | Scientists have just identified a new reason why some curry dishes, made with spices humans have used for thousands of years, might be good for you. | 5/24/12 | Free | View In iTunes |
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Thousands of invisibility cloaks trap a rainbow | Many people anticipating the creation of an invisibility cloak might be surprised to learn that a group of American researchers has created 25 000 individual cloaks. | 5/24/12 | Free | View In iTunes |
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Asteroid nudged by sunlight: Most precise measurement of Yarkovsky effect | Scientists on NASA's asteroid sample return mission, Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer (OSIRIS-REx), have measured the orbit of their destination asteroid, 1999 RQ36, with such accuracy they were able to directly measure the drift resulting from a subtle but important force called the Yarkovsky effect the slight push created when the asteroid absorbs sunlight and re-emits that energy as heat. | 5/24/12 | Free | View In iTunes |
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'Personality genes' may help account for longevity | "It's in their genes" is a common refrain from scientists when asked about factors that allow centenarians to reach age 100 and beyond. Up until now, research has focused on genetic variations that offer a physiological advantage such as high levels of HDL ("good") cholesterol. But researchers at Albert Einstein College of Medicine and Ferkauf Graduate School of Psychology of Yeshiva University have found that personality traits like being outgoing, optimistic, easygoing, and enjoying laughter as well as staying engaged in activities may also be part of the longevity genes mix. | 5/24/12 | Free | View In iTunes |
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New mapping of Mars shows western Medusae Fossae formation older than once thought | (Phys.org) -- Recent geologic mapping of the Medusae Fossae Formation on Marsan intensely eroded deposit near the northern edge of the cratered highlandshas revealed a wider distribution of its western component than was previously recognized. | 5/24/12 | Free | View In iTunes |
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Gene discovery points towards non-hormonal male contraceptive | A new type of male contraceptive could be created thanks to the discovery of a key gene essential for sperm development. | 5/24/12 | Free | View In iTunes |
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HyperSolar shows dirty water no barrier to power world | (Phys.org) -- The Santa Barbara, California, company, HyperSolar, is set to transparently share the ups and downs of its research experiences toward the companys ultimate vision, successfully producing renewable hydrogen. The company is setting down experiences with their own development processes. The company this week reported an achievement, in that it was able to announce that its first proof of concept prototype is successfully producing renewable hydrogen. | 5/24/12 | Free | View In iTunes |
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Cyber exercise partners help you go the distance: Motivation gains can double | A new study testing the benefits of a virtual exercise partner shows the presence of a moderately more capable cycling partner can significantly boost the motivation by as much as 100 percent to stick to an exercise program. | 5/24/12 | Free | View In iTunes |
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'Metamaterials,' quantum dots show promise for new technologies | (Phys.org) -- Researchers are edging toward the creation of new optical technologies using "nanostructured metamaterials" capable of ultra-efficient transmission of light, with potential applications including advanced solar cells and quantum computing. | 5/24/12 | Free | View In iTunes |
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Amino acid consumption associated with how fast cancer cells divide | For almost a century, researchers have known that cancer cells have peculiar appetites, devouring glucose in ways that normal cells do not. But glucose uptake may tell only part of cancer's metabolic story. Researchers from the Broad Institute and Massachusetts General Hospital looked across 60 well-studied cancer cell lines, analyzing which of more than 200 metabolites were consumed or released by the fastest dividing cells. Their research yields the first large-scale atlas of cancer metabolism and points to a key role for the smallest amino acid, glycine, in cancer cell proliferation. Their results appear in the May 25 issue of the journal Science. | 5/24/12 | Free | View In iTunes |
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In nanorod crystal growth, nanoparticles seen as artificial atoms | In the growth of crystals, do nanoparticles act as "artificial atoms" forming molecular-type building blocks that can assemble into complex structures? This is the contention of a major but controversial theory to explain nanocrystal growth. A study by researchers at the DOE's Lawrence Berkeley National Laboratory (Berkeley Lab) may resolve the controversy and point the way to energy devices of the future. | 5/24/12 | Free | View In iTunes |
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First direct observation of oriented attachment in nanocrystal growth | Berkeley Lab researchers have reported the first direct observation of nanoparticles undergoing oriented attachment, the critical step in biomineralization and the growth of nanocrystals. A better understanding of oriented attachment in nanoparticles is a key to synthesizing new materials with remarkable structural properties. | 5/24/12 | Free | View In iTunes |
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Organic carbon from Mars, but not biological | (Phys.org) -- Molecules containing large chains of carbon and hydrogen--the building blocks of all life on Earth--have been the targets of missions to Mars from Viking to the present day. While these molecules have previously been found in meteorites from Mars, scientists have disagreed about how this organic carbon was formed and whether or not it came from Mars. | 5/24/12 | Free | View In iTunes |
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Discarded data may hold the key to a sharper view of molecules | (Phys.org) -- There's nothing like a new pair of eyeglasses to bring fine details into sharp relief. For scientists who study the large molecules of life from proteins to DNA, the equivalent of new lenses have come in the form of an advanced method for analyzing data from X-ray crystallography experiments. | 5/24/12 | Free | View In iTunes |
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Relatively speaking: Researchers identify principles that shape kinship categories across languages | Different languages refer to family relationships in different ways. For example, English speakers use two terms grandmother and grandfather to refer to grandparents, while Mandarin Chinese uses four terms. Many possible kinship categories, however, are never observed, which raises the question of why some kinship categories appear in the languages of the world but others do not. | 5/24/12 | Free | View In iTunes |
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Autopsy of a eruption: Linking crystal growth to volcano seismicity | A forensic approach that links changes deep below a volcano to signals at the surface is described by scientists from the University of Bristol in a paper published today in Science. The research could ultimately help to predict future volcanic eruptions with greater accuracy. | 5/24/12 | Free | View In iTunes |
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Gourmet butterflies speed north: study | A new study led by scientists in the Department of Biology at the University of York has shown how a butterfly has changed its diet, and consequently has sped northwards in response to climate change. Their study is published in the latest issue of Science. | 5/24/12 | Free | View In iTunes |
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Pivotal role for proteins -- from helping turn carbs into energy to causing devastating disease | Research into how carbohydrates are converted into energy has led to a surprising discovery with implications for the treatment of a perplexing and potentially fatal neuromuscular disorder and possibly even cancer and heart disease. | 5/24/12 | Free | View In iTunes |
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New test shows potential for detecting active cases of Lyme disease | George Mason University researchers can find out if a tick bite means Lyme disease well before the bite victim begins to show symptoms. | 5/24/12 | Free | View In iTunes |
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Newly modified nanoparticle opens window on future gene editing technologies | The scientific and technological literature is abuzz with nanotechnology and its manufacturing and medical applications. But it is in an area with a less glitzy auraplant scienceswhere nanotechnology advancements are contributing dramatically to agriculture. | 5/24/12 | Free | View In iTunes |
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Excitons: Exotic particles, chilled and trapped, form giant matter wave | Physicists have trapped and cooled exotic particles called excitons so effectively that they condensed and cohered to form a giant matter wave. | 5/24/12 | Free | View In iTunes |
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Researcher calls for new approach to regulating probiotics | In today's Nature scientific journal Dr. Gregor Reid, Director of the Canadian R&D Centre for Probiotics at Lawson Health Research Institute and a scientist at Western University, calls for a Category Tree system to be implemented in the United States and Europe to better inform consumers about probiotics. | 5/24/12 | Free | View In iTunes |
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Boundary stops molecule right where it needs to be | A molecule responsible for the proper formation of a key portion of the nervous system finds its way to the proper place not because it is actively recruited, but instead because it can't go anywhere else. | 5/24/12 | Free | View In iTunes |
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Locating ground zero: How the brain's emergency workers find the disaster area | Like emergency workers rushing to a disaster scene, cells called microglia speed to places where the brain has been injured, to contain the damage by 'eating up' any cellular debris and dead or dying neurons. Scientists at the European Molecular Biology Laboratory (EMBL) in Heidelberg, Germany, have now discovered exactly how microglia detect the site of injury, thanks to a relay of molecular signals. Their work, published today in Developmental Cell, paves the way for new medical approaches to conditions where microglia's ability to locate hazardous cells and material within the brain is compromised. | 5/24/12 | Free | View In iTunes |
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A boost in microRNA may protect against sepsis and other inflammatory diseases | Acute inflammatory diseases, such as sepsis, as well as chronic inflammatory diseases like diabetes and arthritis, develop as a result of sustained inflammation of the blood vessel wall. Researchers at Brigham and Women's Hospital (BWH) have discovered that a microRNA (small, non-coding RNA molecule) called miR-181b can reduce the inflammatory response that is responsible for such diseases. | 5/24/12 | Free | View In iTunes |
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Researchers identify protein necessary for behavioral flexibility | Researchers have identified a protein necessary to maintain behavioral flexibility, which allows us to modify our behaviors to adjust to circumstances that are similar, but not identical, to previous experiences. Their findings, which appear in the journal Cell Reports, may offer new insights into addressing autism and schizophreniaafflictions marked by impaired behavioral flexibility. | 5/24/12 | Free | View In iTunes |
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Knowing genetic makeup may not significantly improve disease risk prediction | Harvard School of Public Health (HSPH) researchers have found that detailed knowledge about your genetic makeupthe interplay between genetic variants and other genetic variants, or between genetic variants and environmental risk factorsmay only change your estimated disease prediction risk for three common diseases by a few percentage points, which is typically not enough to make a difference in prevention or treatment plans. It is the first study to revisit claims in previous research that including such information in risk models would eventually help doctors either prevent or treat diseases. | 5/24/12 | Free | View In iTunes |
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Thioridazine kills cancer stem cells in human while avoiding toxic side-effects of conventional cancer treatments | A team of scientists at McMaster University has discovered a drug, thioridazine, successfully kills cancer stem cells in the human while avoiding the toxic side-effects of conventional cancer treatments. | 5/24/12 | Free | View In iTunes |
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Nuisance seaweed found to produce compounds with biomedical potential | A seaweed considered a threat to the healthy growth of coral reefs in Hawaii may possess the ability to produce substances that could one day treat human diseases, a new study led by scientists at Scripps Institution of Oceanography at UC San Diego has revealed. | 5/24/12 | Free | View In iTunes |
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Male fertility genes discovered | A new study has revealed previously undiscovered genetic variants that influence fertility in men. The findings, published by Cell Press on May 24th in the American Journal of Human Genetics, shed much-needed light on human reproduction and might provide answers for countless men suffering from infertility. | 5/24/12 | Free | View In iTunes |
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Researchers prove new circuit pattern-design process, see promise for 14 nanometer design with directed self-assembly | (Phys.org) -- Researchers sponsored by Semiconductor Research Corporation (SRC) announced that they have successfully created contact hole patterns for a wide variety of practical logic and memory devices using a next-generation directed self-assembly (DSA) process. Applying a relatively simple combination of chemical and thermal processes to create their DSA method for making circuits at 22 nanometers (nm), the research team at Stanford University projects that the nanofabrication technique will enable pattern etching for next-generation chips down to 14nm. | 5/24/12 | Free | View In iTunes |
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Pair call for public discourse on treating wastewater contaminated with birth control pill chemicals | (Phys.org) -- As people go about their daily lives, its easy to overlook the impact their lifestyle has on the environment. Resources are used and as a result of their use, certain elements are placed back into the environment, some of which many people may not even think about. One of these is what happens to chemicals we take in after our bodies finish with them? Some are breathed into the air though most are flushed down the toilet after being deposited into our feces and urine. Workers at waste treatment facilities could point out chemical ingredients found in shampoos, for example, or those used in the production of food for another and most particularly drugs that we take to keep our various ailments at bay. | 5/24/12 | Free | View In iTunes |
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Is a classical electrodynamics law incompatible with special relativity? | (Phys.org) -- The laws of classical electromagnetism that were developed in the 19th century are the same laws that scientists use today. They include Maxwell’s four equations along with the Lorentz law, which describes the force exerted by electric and magnetic fields on charged particles. But Masud Mansuripur, a professor of Optical Sciences at The University of Arizona in Tucson, is now arguing that the Lorentz law of force is incompatible with special relativity and momentum conservation, and should be abandoned. In a recent issue of Physical Review Letters, he has suggested replacing the Lorentz law with a more general expression of electromagnetic force density, such as one developed by Albert Einstein and Jakob Laub in 1908. | 5/24/12 | Free | View In iTunes |
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Robot monitors toxic red tides | A robotic device suspended under the ocean surface from a buoy off the New Hampshire coast is monitoring seawater for evidence of the red tide, clusters of microscopic plants that release toxins into fish and shellfish, making them poisonous to anyone who eats them. | 5/24/12 | Free | View In iTunes |
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Researchers find a way to delay aging of stem cells | Stem cells are essential building blocks for all organisms, from plants to humans. They can divide and renew themselves throughout life, differentiating into the specialized tissues needed during development, as well as cells necessary to repair adult tissue. | 5/24/12 | Free | View In iTunes |
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The search for the earliest signs of Alzheimer's | (Medical Xpress) -- For the past five years, volunteers from the City of Berkeley and surrounding areas have come to Lawrence Berkeley National Laboratory to participate in an ongoing study thats changing what scientists know about Alzheimers disease. | 5/24/12 | Free | View In iTunes |
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Did ancient Mars have a runaway greenhouse? | Cosmic impacts that once bombed Mars might have sent temperatures skyrocketing upward on the Red Planet in ancient times, enough to set warming of the surface on a runaway course, researchers say. | 5/24/12 | Free | View In iTunes |
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Fungi shifted plant balance of power | Cooperating with fungi didn't just help the earliest plants spread across a barren, rocky landscape; it also played a decisive role in the rise of more complex plants with roots and leaves that make up most of today's flora. | 5/24/12 | Free | View In iTunes |
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Young alum creates iPad user experience improvement | (Phys.org) -- When Daniel Hooper became frustrated with editing text on his iPad, he wrote an application that could revolutionize the way users select and arrange their words on tablets. | 5/24/12 | Free | View In iTunes |
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Long-term meditation leads to different brain organization | (Medical Xpress) -- People who practice mindfulness meditation learn to accept their feelings, emotions, and states of mind without judging or resisting them. They simply live in the moment. | 5/24/12 | Free | View In iTunes |
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Rapid coral death by a deadly chain reaction | (Phys.org) -- Most people are fascinated by the colorful and exotic coral reefs, which form habitats with probably the largest biodiversity. But human civilisation is the top danger to these fragile ecosystems through climate change, oxygen depletion and ocean acidification. Industrialisation, deforestation and intensive farming in coastal areas are changing dramatically the conditions for life in the oceans. Now scientists at the Max Planck Institute for Marine Microbiology from Bremen together with their colleagues from Australia, Sultanate of Oman and Italy have investigated how and why the corals die when exposed to sedimentation. According to their findings, oxygen depletion, together with an acidification of the environment, creates a chain reaction that leads to coral death. | 5/24/12 | Free | View In iTunes |
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Research team uncovers mechanism behind drugs that cause altered immunity | (Medical Xpress) -- An Australian research team has opened the door to understanding why certain drugs cause a so called altered immunity response when offered as treatment for certain specific ailments. In their paper published in the journal Nature, the team explains how theyve uncovered the mechanism that causes an HIV treatment drug to lead to hypersensitivity syndrome. | 5/24/12 | Free | View In iTunes |
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New genetic method pinpoints geographic origin | (Medical Xpress) -- Understanding the genetic diversity within and between populations has important implications for studies of human disease and evolution. This includes identifying associations between genetic variants and disease, detecting genomic regions that have undergone positive selection and highlighting interesting aspects of human population history. | 5/24/12 | Free | View In iTunes |
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Spatial configuration can spark deja vu, psychology study reveals | (Medical Xpress) -- Déjà vu - that strange feeling of having experienced something before - is more likely to occur when a scene's spatial layout resembles one in memory, according to groundbreaking new research by a Colorado State University psychology professor. | 5/24/12 | Free | View In iTunes |
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Study cracks a secret of methanol production | (Phys.org) -- Whats the best way to make methanol? The question is more pressing than it sounds. Not only is methanol an important industrial chemical some 50 million tons are used each year to make plastics and other products but it could also become the basis of a clean energy economy that actually reduces global warming by turning a potent greenhouse gas, carbon dioxide, into fuel. | 5/24/12 | Free | View In iTunes |
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Device may inject a variety of drugs without using needles | Getting a shot at the doctor’s office may become less painful in the not-too-distant future. | 5/24/12 | Free | View In iTunes |
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Crowding causes cells to produce an orderly matrix of molecules | When researchers conduct experiments on the way cells grow and respond to outside cues, they tend to use solutions that are much more dilute than the crowded environments found inside living cells. Now, new research from MIT shows that this dilute environment may skew the results of such experiments. | 5/24/12 | Free | View In iTunes |
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New CO2-removing catalyst can take the heat | (Phys.org) -- The current method of removing the greenhouse gas carbon dioxide (CO2) from the flues of coal-fired power plants uses so much energy that no one bothers to use it. So says Roger Aines, principal investigator for a team that has developed an entirely new catalyst for separating out and capturing CO2, one that mimics a naturally occurring catalyst operating in our lungs. With this success, the Laboratory has become a world leader in designing catalysts that mimic the behavior of natural enzymes. | 5/24/12 | Free | View In iTunes |
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No new neurons in the human olfactory bulb | (Medical Xpress) -- Research from Karolinska Institutet shows that the human olfactory bulb - a structure in the brain that processes sensory input from the nose - differs from that of other mammals in that no new neurons are formed in this area after birth. The discovery, which is published in the scientific journal Neuron, is based on the age-determination of the cells using the carbon-14 method, and might explain why the human sense of smell is normally much worse than that of other animals. | 5/24/12 | Free | View In iTunes |
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Nvidia says Kai platform will turn price tide for tablets | (Phys.org) -- In March, Nvidia gave some signs that they were working to lower the cost of their Tegra 3 processors and they suggested consumers might see prices for Android tablets as low as $199. Connect the dots? At the companys annual investors meeting last week, the dots connected and are making this weeks news. For those marking the history of the tablet, remember the date, May 21, 2012. That was this meeting date at Santa Clara, where Nvidia management told its audience what strategies and growth were on tap. Vice President of Investor Relations, Rob Csonger, did the tablet talking. | 5/24/12 | Free | View In iTunes |
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Nanofluidics sorts DNA for cancer research | (Phys.org) -- Cornell nanotechnology researchers have devised a new tool to study epigenetic changes in DNA that can cause cancer and other diseases: a nanoscale fluidic device that sorts and collects DNA, one molecule at a time. | 5/24/12 | Free | View In iTunes |
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Commonly used pesticide turns honey bees into 'picky eaters' | Biologists at UC San Diego have discovered that a small dose of a commonly used crop pesticide turns honey bees into "picky eaters" and affects their ability to recruit their nestmates to otherwise good sources of food. | 5/23/12 | Free | View In iTunes |
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Deep sea animals stowaway on submarines and reach new territory | Marine scientists studying life around deep-sea vents have discovered that some hardy species can survive the extreme change in pressure that occurs when a research submersible rises to the surface. The team's findings, published in Conservation Biology, reveal how a species can be inadvertently carried by submersibles to new areas, with potentially damaging effects on marine ecosystems. | 5/23/12 | Free | View In iTunes |
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Calcium supplements linked to significantly increased heart attack risk | Calcium supplements might increase the risk of having a heart attack, and should be "taken with caution," concludes research published in the online issue of the journal Heart. | 5/23/12 | Free | View In iTunes |
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Shift to shore: New model shows extinct tetrapod Ichthyostega couldn't walk | Palaeontology has gone high-tech: no more wax and plaster-cast models. Instead, 3D data from computed tomography (CT) scans is overturning long-held views of how the earliest land animals moved. | 5/23/12 | Free | View In iTunes |
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Aspirin may prevent recurrence of deep vein blood clots | (HealthDay) -- After suffering a type of blood clot called a venous thromboembolism, patients usually take a blood-thinner such as warfarin (Coumadin). But aspirin may do just as well after a period of time, according to a new Italian study. | 5/23/12 | Free | View In iTunes |
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Whole genome sequencing of rare olfactory neuroblastoma | The Translational Genomics Research Institute (TGen) and the Virginia G. Piper Cancer Center at Scottsdale Healthcare have conducted whole genome sequencing (WGS) of a rare nasal tract cancer called olfactory neuroblastoma (ONB). | 5/23/12 | Free | View In iTunes |
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Intrauterine devices, implants most effective birth control | A study to evaluate birth control methods has found dramatic differences in their effectiveness. Women who used birth control pills, the patch or vaginal ring were 20 times more likely to have an unintended pregnancy than those who used longer-acting forms such as an intrauterine device (IUD) or implant. | 5/23/12 | Free | View In iTunes |
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The Goldilocks effect: Babies learn from experiences that are 'just right' | Long before babies understand the story of Goldilocks, they have more than mastered the fairy tale heroine's method of decision-making. Infants ignore information that is too simple or too complex, focusing instead on situations that are "just right," according to a new study to be published in the journal PLoS ONE on May 23. | 5/23/12 | Free | View In iTunes |
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Women trying to have babies face different clock problem | A new Northwestern University study shows that the biological clock is not the only clock women trying to conceive should consider. The circadian clock needs attention, too. | 5/23/12 | Free | View In iTunes |
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Stem-cell-growing surface enables bone repair | (Medical Xpress) -- University of Michigan researchers have proven that a special surface, free of biological contaminants, allows adult-derived stem cells to thrive and transform into multiple cell types. Their success brings stem cell therapies another step closer. | 5/23/12 | Free | View In iTunes |
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Hormone plays surprise role in fighting skin infections | Antimicrobial peptides (AMPs) are molecules produced in the skin to fend off infection-causing microbes. Vitamin D has been credited with a role in their production and in the body's overall immune response, but scientists at the University of California, San Diego School of Medicine say a hormone previously associated only with maintaining calcium homeostasis and bone health is also critical, boosting AMP expression when dietary vitamin D levels are inadequate. | 5/23/12 | Free | View In iTunes |
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Anti-inflammatory drugs may improve survival from severe malaria | A novel anti-inflammatory drug could help to improve survival in the most severe cases of malaria by preventing the immune system from causing irrevocable brain and tissue damage. | 5/23/12 | Free | View In iTunes |
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Cancer docs often deal with own grief, doubts when patients die | (HealthDay) -- Some cancer doctors may build up emotional walls -- distancing themselves from the patients they can't save -- to avoid grief, sadness and even despair, new research shows. | 5/23/12 | Free | View In iTunes |
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Lying in wait for WIMPs: Researchers seek to dramatically increase sensitivity of Large Underground Xenon detector | Although it's invisible, dark matter accounts for at least 80 percent of the matter in the universe. No one knows what it is, but most scientists would bet on weakly interacting massive particles, or WIMPs. | 5/23/12 | Free | View In iTunes |
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Study reveals trade patterns for crucial substance played key role in Maya collapse | Shifts in exchange patterns provide a new perspective on the fall of inland Maya centers in Mesoamerica approximately 1,000 years ago. This major historical process, sometimes referred to as the "Maya collapse" has puzzled archaeologists, history buffs, and the news media for decades. The new research was published online today in the journal Antiquity. | 5/23/12 | Free | View In iTunes |
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Chronic pain is relieved by cell transplantation in lab study (Update) | (Medical Xpress) -- Chronic pain, by definition, is difficult to manage, but a new study by UCSF scientists shows how a cell therapy might one day be used not only to quell some common types of persistent and difficult-to-treat pain, but also to cure the conditions that give rise to them. | 5/23/12 | Free | View In iTunes |
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Efficient and tunable interface for quantum networks | (Phys.org) -- Quantum computers may someday revolutionize the information world. But in order for quantum computers at distant locations to communicate with one another, they have to be linked together in a network. While several building blocks for a quantum computer have already been successfully tested in the laboratory, a network requires one additonal component: a reliable interface between computers and information channels. In the current issue of the journal Nature, physicists at the University of Innsbruck report the construction of an efficient and tunable interface for quantum networks. | 5/23/12 | Free | View In iTunes |
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New inexpensive, environmentally friendly solar cell shines with potential | (Phys.org) -- The limitations of conventional and current solar cells include high production cost, low operating efficiency and durability, and many cells rely on toxic and scarce materials. Northwestern University researchers have developed a new solar cell that, in principle, will minimize all of these solar energy technology limitations. | 5/23/12 | Free | View In iTunes |
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Geological record shows air up there came from below | (Phys.org) -- The influence of the ground beneath us on the air around us could be greater than scientists had previously thought, according to new research that links the long-ago proliferation of oxygen in Earth's atmosphere to a sudden change in the inner workings of our planet. | 5/23/12 | Free | View In iTunes |
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Repulsive polaron: Austrian physicists realize elusive quasiparticles | (Phys.org) -- In quantum physics physical processes in condensed matter and other many-body systems can often be described with quasiparticles. In Innsbruck, for the first time Rudolf Grimms team of physicists has succeeded in experimentally realizing a new quasiparticle a repulsive polaron in an ultracold quantum gas. The scientists have published their results in the online issue of the journal Nature. | 5/23/12 | Free | View In iTunes |
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Newly discovered sensory organ in the chin of baleen whales allows them to be world's largest hunters | Lunge feeding in rorqual whales (a group that includes blue, humpback and fin whales) is unique among mammals, but details of how it works have remained elusive. Now, scientists from the Smithsonian Institution and University of British Columbia have solved the mystery. They discovered a sensory organ in the chin of rorqual whales that communicates to the brain. The organ orchestrates the dramatic changes and adjustments needed in jaw position and throat-pouch expansion to make lunge feeding successful. The team's research will be the featured cover story in the May 24 issue of Nature. | 5/23/12 | Free | View In iTunes |
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Researchers uncover new ways sleep-wake patterns are like clockwork | Researchers at New York University and Albert Einstein College of Medicine of Yeshiva University have discovered new ways neurons work together to ease the transition between sleep and wakefulness. Their findings, which appear in the journal Neuron, provide additional insights into sleep-wake patterns and offer methods to explore what may disrupt them. | 5/23/12 | Free | View In iTunes |
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Study shows how immune cells change wiring of the developing mouse brain | Researchers have shown in mice how immune cells in the brain target and remove unused connections between brain cells during normal development. This research, supported by the National Institutes of Health, sheds light on how brain activity influences brain development, and highlights the newly found importance of the immune system in how the brain is wired, as well as how the brain forms new connections throughout life in response to change. | 5/23/12 | Free | View In iTunes |
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Reverse engineering epilepsy's 'miracle' diet | For decades, neurologists have known that a diet high in fat and extremely low in carbohydrates can reduce epileptic seizures that resist drug therapy. But how the diet worked, and why, was a mysteryso much so that in 2010, The New York Times Magazine called it "Epilepsy's Big, Fat Miracle." | 5/23/12 | Free | View In iTunes |
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Prevalence of kidney stones doubles in wake of obesity epidemic | The number of Americans suffering from kidney stones between 2007 and 2010 nearly doubled since 1994, according to a study by researchers at the University of California, Los Angeles (UCLA) and RAND. | 5/23/12 | Free | View In iTunes |
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Hawaii lab turns laser-powered bubbles into microrobots | (Phys.org) -- A team of scientists from the University of Hawaii are working on microrobots created from bubbles of air in a saline solution. The bubbles take on their title of robots as a laser is deployed to work as an engine to power the bubbles directions and speed. The microrobots follow the positions of the projected light; multiple microrobots can be controlled at once. Among the demonstrations is an example of how bubble microrobots can pass around glass microbeads. Using a fine-tipped syringe filled with air and saline solution, the scientists went to work on making these robots out of bubbles. | 5/23/12 | Free | View In iTunes |
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Study supports urate protection against Parkinson's disease, hints at novel mechanism | Use of the antioxidant urate to protect against the neurodegeneration caused by Parkinson's disease appears to rely on more than urate's ability to protect against oxidative damage. In the May issue of the open-access journal PLoS One, researchers from the MassGeneral Institute for Neurodegenerative Diseases (MGH-MIND) describe experiments suggesting the involvement of a novel mechanism in urate's protection of cultured brain cells against Parkinson's-like damage. | 5/23/12 | Free | View In iTunes |
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Cardio fitness levels of breast cancer patients may affect survival | Women receiving care for breast cancer have significantly impaired cardio-pulmonary function that can persist for years after they have completed treatment, according to a study led by scientists at Duke University Medical Center. | 5/23/12 | Free | View In iTunes |
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'Obesity genes' may influence food choices, eating patterns | Blame it on your genes? Researchers from The Miriam Hospital's Weight Control and Diabetes Research Center say individuals with variations in certain "obesity genes" tend to eat more meals and snacks, consume more calories per day and often choose the same types of high fat, sugary foods. | 5/23/12 | Free | View In iTunes |
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New model of geological strata may aid oil extraction, water recovery and Earth history studies | (Phys.org) -- A Sandia modeling study contradicts a long-held belief of geologists that pore sizes and chemical compositions are uniform throughout a given strata, which are horizontal slices of sedimentary rock. | 5/23/12 | Free | View In iTunes |
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Sensing the infrared: Researchers improve infrared detectors using single-walled carbon nanotubes | (Phys.org) -- Whether used in telescopes or optoelectronic communications, infrared detectors must be continuously cooled to avoid being overwhelmed by stray thermal radiation. Now, a team of researchers from Peking University, the Chinese Academy of Sciences, and Duke University (USA) is harnessing the remarkable properties of single-walled carbon nanotubes (SWNTs) to create highly sensitive, uncooled photovoltaic infrared detectors. | 5/23/12 | Free | View In iTunes |
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Color-changing contact lenses to help diabetics | For the millions of Americans with diabetes, the inconvenient and often painful method of testing blood sugar levels is a way of life. But research and innovative product design by scientists at The University of Akron may eliminate the need for needle p***ks, blood draws, or other invasive devices. | 5/23/12 | Free | View In iTunes |
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The living fossils of brain evolution | (Phys.org) -- In the course of its evolution, the architecture of the mouse brain may have barely changed. Similar to the tiny ancestors of modern mammals that lived about 80 million years ago, nerve cells in the mouse visual cortex are densely packed in a small area of the brain. However, during the subsequent evolution of larger brains the architecture of the cerebral cortex was radically restructured. This is the conclusion of an international team of researchers led by scientists at the Max Planck Institute for Dynamics and Self-Organization, the University of Göttingen and the Bernstein Center Göttingen. The brains of larger mammals, such as humans, however, have a completely different structure to those of mice. Processes of self-organisation led to the emergence of modules in which neurons conjointly are responsible for specific tasks. | 5/23/12 | Free | View In iTunes |
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Study shows how to keep a Mars tumbleweed rover moving on rocky terrain | New research from North Carolina State University shows that a wind-driven "tumbleweed" Mars rover would be capable of moving across rocky Martian terrain findings that could also help the National Aeronautics and Space Administration (NASA) design the best possible vehicle. | 5/23/12 | Free | View In iTunes |
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Brain research shows visual perception system unconsciously affects our preferences | When grabbing a coffee mug out of a cluttered cabinet or choosing a pen to quickly sign a document, what brain processes guide your choices? | 5/23/12 | Free | View In iTunes |
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Well-connected brains make you smarter in older age | Brains that maintain healthy nerve connections as we age help keep us sharp in later life, new research funded by the charity Age UK has found. | 5/23/12 | Free | View In iTunes |
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Phthalates in PVC floors taken up by the body in infants | A new study at Karlstad University in Sweden shows that phthalates from PVC flooring materials is taken up by our bodies. Phthalates are substances suspected to cause asthma and allergies, as well as other chronic diseases in children. The study shows that children can ingest these softening agents with food but also by breathing and through the skin. | 5/23/12 | Free | View In iTunes |
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Non-invasive intracellular 'thermometer' with fluorescent proteins created | A team from the Institute of Photonic Sciences (ICFO) has developed a technique to measure internal cell temperatures without altering their metabolism. This finding could be useful when distinguishing healthy cells from cancerous ones, as well as learning more about cellular processes. | 5/23/12 | Free | View In iTunes |
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Venus Express unearths new clues to the planet's geological history | (Phys.org) -- ESA's Venus Express has been used to study the geology in a region near Venus' equator. Using near-infrared observations collected by the Venus Monitoring Camera (VMC), scientists have found evidence that the planet's rugged highlands are scattered with geochemically more evolved rocks, rather than the basaltic rocks of the volcanic plains. This finding is in agreement with previous studies, which used data from the spacecraft's Visible and Infrared Thermal Imaging Spectrometer (VIRTIS) to map the planet's surface in the southern hemisphere. | 5/23/12 | Free | View In iTunes |
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Good vibes: Coupling electron spin states and carbon nanotube vibrations | (Phys.org) -- An electron’s spin is separate from its motion, and is suitable for use in both highly-precise magnetic sensing as well as a qubit in quantum computing. Recently, scientists at the University of Konstanz in Germany have theoretically investigated the coupling of electron spin in carbon nanotube quantum dots, showing that the carbon nanotube’s nanomechanical vibrations can significantly affect the spin of an electron trapped on it. Moreover, their findings also theoretically show that the carbon nanotube itself can be affected by the electron’s spin. The researchers state that their findings have important implications for magnetic and mass nanosensors, quantum computing and other nanoscale applications. | 5/23/12 | Free | View In iTunes |
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Cassini reveals details about charged 'nanograins' near Enceladus | (Phys.org) -- It was a call that Rice University physicist Tom Hill had waited more than 20 years to receive. It traveled almost a billion miles to reach him. And the message once it arrived from NASAs Cassini spacecraft near Saturn was so enigmatic that it would take another three years to decipher. | 5/23/12 | Free | View In iTunes |
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Dark shadows on Mars: Scene from durable NASA rover | (Phys.org) -- Like a tourist waiting for just the right lighting to snap a favorite shot during a stay at the Grand Canyon, NASA's Mars Exploration Rover Opportunity has used a low sun angle for a memorable view of a large Martian crater. | 5/23/12 | Free | View In iTunes |
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Project to examine 'Yeti' DNA | (Phys.org) -- A new collaboration between Oxford University and the Lausanne Museum of Zoology will use the latest genetic techniques to investigate organic remains that some have claimed belong to the Yeti and other lost hominid species. | 5/23/12 | Free | View In iTunes |
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Research suggests cells communicate via biophotons | (Phys.org) -- Biologists have long been familiar with luminescence in organisms, where plants and animals produce visible light, but more intriguing perhaps is the newer field of study centered around biophotons, whereby cells in organisms produce photons, but in numbers that are too few to be seen. How they do so and why, is an area that has come under more scrutiny of late. Now, new research by Sergey Mayburov, of the Lebedev Institute of Physics in Moscow, has uncovered a pattern in photons being generated by cells in fish eggs that gives credence to the theory that some cells use biophotons to communicate. He has written a paper describing his results and has posted it on the preprint server arXiv. | 5/23/12 | Free | View In iTunes |
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Molecular 'on-off' switch for Parkinson's disease discovered | (Medical Xpress) -- Scientists at the Medical Research Council (MRC) Protein Phosphorylation Unit at the University of Dundee have discovered a new molecular switch that acts to protect the brain from developing Parkinson's disease. | 5/23/12 | Free | View In iTunes |
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New mathematical framework formalizes oddball programming techniques | Two years ago, Martin Rinard's group at MIT's Computer Science and Artificial Intelligence Laboratory proposed a surprisingly simple way to make some computer procedures more efficient: Just skip a bunch of steps. Although the researchers demonstrated several practical applications of the technique, dubbed loop perforation, they realized it would be a hard sell. "The main impediment to adoption of this technique," Imperial College London's Cristian Cadar commented at the time, "is that developers are reluctant to adopt a technique where they don't exactly understand what it does to the program." | 5/23/12 | Free | View In iTunes |
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Research pair theorize metamaterials that exhibit negative compressibility transitions | (Phys.org) -- In the real world of so called normal materials, people expect certain things to occur as a result of certain actions. Covering an object with a cloak for example, should hide the object, but the cloak should still be visible (or vice-versa), or if you push or sit on a couch cushion, it should contract. Lately though, new science has been changing our perception of how materials should behave. For example, recent research into metamaterials; materials that arent normally found in nature, has been turning some of what we see as normal, on its head. The development of cloaking devices that hide objects and are themselves invisible, is one example. | 5/23/12 | Free | View In iTunes |
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Novel probe for ultracold quantum matter developed | (Phys.org) -- In a paper published in the May 20, 2012 edition of the journal Nature Physics, a research group from the Department of Physics and Astronomy at Stony Brook University reports the development and demonstration of a novel probe for atomic quantum matter. The paper, Probing an Ultracold-Atom Crystal with Matter Waves," describes a proof-of-principle experiment on the diffraction of atomic de Broglie waves from a strongly correlated gas of atoms held in an optical lattice. | 5/23/12 | Free | View In iTunes |
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Hacking code of leaf vein architecture solves mysteries, allows predictions of past climate | (Phys.org) -- UCLA life scientists have discovered new laws that determine the construction of leaf vein systems as leaves grow and evolve. These easy-to-apply mathematical rules can now be used to better predict the climates of the past using the fossil record. | 5/23/12 | Free | View In iTunes |
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Leap Motion creates finger-happy gesture control | (Phys.org) -- Developers and end users both have been indicating they are ready to start saying long goodbyes to mouse and keyboard. In this touchscreen generation of mobile users, the big stir among gadget reviewers this week is the announcement by Leap Motion that you can not only say goodbye to mouse and keyboard, but goodbye to touchscreen, too. "That nice LED display remains clean and untouched, as it should be, says the company. The San Francisco based company has announced it is accepting pre-orders for its new Leap, a small USB peripheral that performs motion control with in-the-air sweeps of hand and movements of fingers. The Leap creates a 3-D interaction space of eight cubic feet to interact with and control software on a laptop or desktop. This gesture-control device for computers is running rings, and orbs, and swirls, and curlicues, around Kinect, the most well known of technologies that help users interact with computers without mouse and keyboard. | 5/23/12 | Free | View In iTunes |
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Socioeconomics may affect toddlers' exposure to flame retardants | A Duke University-led study of North Carolina toddlers suggests that exposure to potentially toxic flame-retardant chemicals may be higher in nonwhite toddlers than in white toddlers. | 5/23/12 | Free | View In iTunes |
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How ion bombardment reshapes metal surfaces | To modify a metal surface at the scale of atoms and molecules for instance to refine the wiring in computer chips or the reflective silver in optical components manufacturers shower it with ions. While the process may seem high-tech and precise, the technique has been limited by the lack of understanding of the underlying physics. In a new study, Brown University engineers modeled noble gas ion bombardments with unprecedented richness, providing long-sought insights into how it works. | 5/23/12 | Free | View In iTunes |
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Scientists start explaining Fat Bastard's vicious cycle | Fat Bastard's revelation "I eat because I'm depressed and I'm depressed because I eat" in the Austin Powers film series may be explained by sophisticated neuroscience research being undertaken by scientists affiliated with the University of Montreal Hospital Research Centre (CR-CHUM) and the university's Faculty of Medicine. | 5/23/12 | Free | View In iTunes |
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Human-like spine morphology found in aquatic eel fossil | For decades, scientists believed that a spine with multiple segments was an exclusive feature of land-dwelling animals. But the discovery of the same anatomical feature in a 345-million-year-old eel suggests that this complex anatomy arose separately from and perhaps before the first species to walk on land. | 5/23/12 | Free | View In iTunes |
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Not a one-way street: Evolution shapes environment of Connecticut lakes | Environmental change is the selective force that preserves adaptive traits in organisms and is a primary driver of evolution. However, it is less well known that evolutionary change in organisms also trigger fundamental changes in the environment. | 5/23/12 | Free | View In iTunes |
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Light pollution transforming insect communities | (Phys.org) -- Street lighting is transforming communities of insects and other invertebrates, according to research by the University of Exeter. Published today in the journal Biology Letters, the study shows for the first time that the balance of different species living together is being radically altered as a result of light pollution in our towns and cities. | 5/23/12 | Free | View In iTunes |
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Scientists turn patients' skin cells into heart muscle cells to repair their damaged hearts | For the first time scientists have succeeded in taking skin cells from heart failure patients and reprogramming them to transform into healthy, new heart muscle cells that are capable of integrating with existing heart tissue. | 5/23/12 | Free | View In iTunes |
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Sleep apnea 'mask' might also help the heart | (HealthDay) -- New research suggests that treating obstructive sleep apnea, a common cause of snoring and daytime sleepiness, might also cut down on a serious health hazard associated with the condition -- the risk of developing high blood pressure. | 5/22/12 | Free | View In iTunes |
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Civil engineers find savings where the rubber meets the road | A new study by civil engineers at MIT shows that using stiffer pavements on the nations roads could reduce vehicle fuel consumption by as much as 3 percent a savings that could add up to 273 million barrels of crude oil per year, or $15.6 billion at todays oil prices. This would result in an accompanying annual decrease in CO2 emissions of 46.5 million metric tons. | 5/22/12 | Free | View In iTunes |
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Newly discovered breast milk antibodies help neutralize HIV | Antibodies that help to stop the HIV virus have been found in breast milk. Researchers at Duke University Medical Center isolated the antibodies from immune cells called B cells in the breast milk of infected mothers in Malawi, and showed that the B cells in breast milk can generate neutralizing antibodies that may inhibit the virus that causes AIDS. | 5/22/12 | Free | View In iTunes |
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Array of light for early disease detection? | A special feature in this week's issue of the journal Science highlights protein array technology, touching on research conducted by Joshua LaBaer, director of the Biodesign Institute's Virginia G. Piper Center for Personalized Diagnostics. | 5/22/12 | Free | View In iTunes |
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The older we get, the less we know (cosmologically) | (Phys.org) -- The universe is a marvelously complex place, filled with galaxies and larger-scale structures that have evolved over its 13.7-billion-year history. Those began as small perturbations of matter that grew over time, like ripples in a pond, as the universe expanded. By observing the large-scale cosmic wrinkles now, we can learn about the initial conditions of the universe. But is now really the best time to look, or would we get better information billions of years into the future - or the past? | 5/22/12 | Free | View In iTunes |
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Scientists unravel role of fusion gene in prostate cancer | Up to half of all prostate cancer cells have a chromosomal rearrangement that results in a new "fusion" gene and formation of its unique protein -- but no one has known how that alteration promotes cancer growth. Now, Weill Cornell Medical College researchers have found that in these cancer cells, the 3-D architecture of DNA, wrapped up in a little ball known as a chromatin, is warped in such a way that a switch has been thrown on thousands of genes, turning them on or off to promote abnormal, unchecked growth. Researchers also found that new chromosomal translocations form, further destabilizing the genome. | 5/22/12 | Free | View In iTunes |
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For monogamous sparrows, it doesn't pay to stray (but they do it anyway) | It's quite common for a female song sparrow to stray from her breeding partner and mate with the male next door, but a new study shows that sleeping around can be costly. | 5/22/12 | Free | View In iTunes |
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Do bald men face higher risk of prostate cancer? | (HealthDay) -- Got hair? If you don't, you might have a higher risk of prostate cancer, a preliminary study suggests. | 5/22/12 | Free | View In iTunes |
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Probability of contamination from severe nuclear reactor accidents is higher than expected: study | Catastrophic nuclear accidents such as the core meltdowns in Chernobyl and Fukushima are more likely to happen than previously assumed. Based on the operating hours of all civil nuclear reactors and the number of nuclear meltdowns that have occurred, scientists at the Max Planck Institute for Chemistry in Mainz have calculated that such events may occur once every 10 to 20 years (based on the current number of reactors) some 200 times more often than estimated in the past. | 5/22/12 | Free | View In iTunes |
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Availability of hydrogen controls chemical structure of graphene oxide | A new study shows that the availability of hydrogen plays a significant role in determining the chemical and structural makeup of graphene oxide, a material that has potential uses in nano-electronics, nano-electromechanical systems, sensing, composites, optics, catalysis and energy storage. | 5/22/12 | Free | View In iTunes |
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Researchers spearhead groundbreaking research into treatment of brain swelling | Researchers at Trinity College Dublin have reported the results of groundbreaking research into the prevention of cerebral oedema or swelling of the brain, a major cause of death in people who have sustained a traumatic injury to the brain, out of hospital cardiac arrest or stroke. The research, which is published this week in the international journal, Nature Communications, uses a radically new patented technology, developed in Ireland and termed, 'Neuronal Barrier Modulation' which has been shown in an animal model simulating human brain swelling, to be highly effective in reducing the dangerous effects of this condition, while improving cognitive outcome. The research was sponsored by the US Department of Defense and Enterprise Ireland. | 5/22/12 | Free | View In iTunes |
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Neuron-nourishing cells appear to retaliate in Alzheimer's | When brain cells start oozing too much of the amyloid protein that is the hallmark of Alzheimer's disease, the astrocytes that normally nourish and protect them deliver a suicide package instead, researchers report. | 5/22/12 | Free | View In iTunes |
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Seagrasses can store as much carbon as forests | (Phys.org) -- Seagrasses are a vital part of the solution to climate change and, per unit area, seagrass meadows can store up to twice as much carbon as the world's temperate and tropical forests. | 5/22/12 | Free | View In iTunes |
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GPS for the brain: Researchers develop new brain map | University of Georgia researchers have developed a map of the human brain that shows great promise as a new guide to the inner workings of the body's most complex and critical organ. | 5/22/12 | Free | View In iTunes |
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More plant species responding to global warming than previously thought | (Phys.org) -- Far more wild plant species may be responding to global warming than previous large-scale estimates have suggested. | 5/22/12 | Free | View In iTunes |
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Learning and memory: The role of neo-neurons revealed | (Medical Xpress) -- Researchers at the Institut Pasteur and the CNRS have recently identified in mice the role played by neo-neurons formed in the adult brain. By using selective stimulation the researchers were able to show that these neo-neurons increase the ability to learn and memorize difficult cognitive tasks. This newly discovered characteristic of neo-neurons to assimilate complex information could open up new avenues in the treatment of some neurodegenerative diseases. This publication is available online on the Nature Neuroscience journal's website. | 5/22/12 | Free | View In iTunes |
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Making microscopic machines using metallic glass | Researchers in Ireland have developed a new technology using materials called bulk metallic glasses to produce high-precision molds for making tiny plastic components. The components, with detailed microscopically patterned surfaces could be used in the next generation of computer memory devices and microscale testing kits and chemical reactors. | 5/22/12 | Free | View In iTunes |
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Study reveals how high-fat foods impact diabetes and metabolic syndrome | A University of Michigan Health System study provides new clues about the health-damaging molecular changes set in motion by eating high-fat foods. | 5/22/12 | Free | View In iTunes |
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A new way to discover pulsars | (Phys.org) -- The Large Area Telescope (LAT), built by SLAC for the Fermi Gamma-ray Space Telescope, collects information on high-energy gamma rays from numerous sources in the sky. Among these are small, elusive objects called pulsars, which spin up to hundreds of times per second. Their name derives from the beams their magnetic fields produce as a result of this spin, which look like the pulsing beam of a lighthouse when, by chance, they happen to sweep across our field of view. | 5/22/12 | Free | View In iTunes |
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Limits to growth: Scientists identify key metastasis-enabling enzyme | (Medical Xpress) -- On the complex road to eradicating cancer, controlling or preventing metastatic growth initiated by primary tumors is high on the to-do list. A key area of such research is the development of therapies based on identifying markers of metastasis associated with altered choline metabolism in breast, ovarian, and prostate cancers. Recently, scientists at the Leibniz Research Centre for Working Environment and Human Factors (IfADO), University of Dortmund, Germany, studying the tumor metabolome – the characteristic metabolic phenotype of tumor cells fundamental to the tumor’s metastatic capacity – identified EDI3 (endometrial differential 3) as the enzyme responsible for a decreased glycerophosphocholine (GPC) to phosphocholine (PC) ratio by cleaving GPC to produce choline. The scientists concluded that since inhibiting EDI3 activity corrects the GPC/PC ratio and thereby decreases tumor cell migration capacity, it represents a possible therapeutic modality. | 5/22/12 | Free | View In iTunes |
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A magnetic approach to lattices | (Phys.org) -- JQI experimentalists under the direction of Ian Spielman are in the business of using lasers to create novel environments for neutral atoms. For instance, this research group previously enticed electrically neutral atoms to act like charged particles moving in magnetic and electric fields. The behavior of particles in strong electromagnetic fields, along with arbitrary control of the said fields, is central to both condensed matter physics, and quantum information science. | 5/22/12 | Free | View In iTunes |
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Cassini spots tiny moon, begins to tilt orbit | (Phys.org) -- NASA's Cassini spacecraft made its closest approach to Saturn's tiny moon Methone as part of a trajectory that will take it on a close flyby of another of Saturn's moons, Titan. The Titan flyby will put the spacecraft in an orbit around Saturn that is inclined, or tilted, relative to the plane of the planet's equator. The flyby of Methone took place on May 20 at a distance of about 1,200 miles (1,900 kilometers). It was Cassini's closest flyby of the 2-mile-wide (3-kilometer-wide) moon. The best previous Cassini images were taken on June 8, 2005, at a distance of about 140,000 miles (225,000 kilometers), and they barely resolved this object. | 5/22/12 | Free | View In iTunes |
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Capturing planets | (Phys.org) -- The discovery of planets around other stars has led to the realization that alien solar systems often have bizarre features - at least they seem bizarre to us because they were so unexpected. For example, many systems have giant planets closer to their star than Mercury is to the Sun, while other have the opposite - giant planets more than ten times farther way from their star than Jupiter is from our Sun. Astronomers think they understand how planets could end up close to the star: they gradually drift in from more customary orbits. But how can planets end up so far away? | 5/22/12 | Free | View In iTunes |
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Planned coincidence: Antibody-based search for new chemical reactions | (Phys.org) -- Many discoveries are made by chance, but it is also possible to help it along: The chance of finding something interesting increases when the number of experiments rises. French researchers have now applied this principle to the search for new chemical reactions. In the journal Angewandte Chemie, they have introduced a new concept based on antibodies and a "sandwich" immunoassay. | 5/22/12 | Free | View In iTunes |
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Study shows subway systems develop in remarkably similar ways | (Phys.org) -- Visitors to major cities in the world might disagree, but a small group of French and British researchers has found that regardless of city density, structure and other factors, subway systems running in the biggest cites in the world are more alike than not in truly fundamental ways. In their paper published in the Journal of the Royal Society Interface, the team says that all of the large city subway systems in the world grow in a way that share common features - such as the fact that they all have central cores with a branch topology. | 5/22/12 | Free | View In iTunes |
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First Bose-Einstein condensate of erbium produced | Francesca Ferlainos research team at the University of Innsbruck is the first to successfully create a condensate of the exotic element erbium. The Innsbruck experimental physicists hold the world record in attaining the first Bose-Einstein condensates of different chemical elements. | 5/22/12 | Free | View In iTunes |
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Newly discovered protein makes sure brain development isn't 'botched' | (Medical Xpress) -- Johns Hopkins scientists have discovered a protein that appears to play an important regulatory role in deciding whether stem cells differentiate into the cells that make up the brain, as well as countless other tissues. This finding, published in the April Developmental Cell, could eventually shed light on developmental disorders as well as a variety of conditions that involve the generation of new neurons into adulthood, including depression, stroke, and posttraumatic stress disorder. | 5/22/12 | Free | View In iTunes |
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New research dashes notions of benign brain plaque | (Medical Xpress) -- The time may have come to scrub the idea that brain plaque deposits of protein that clog passages between brain cells might not be all that bad. | 5/22/12 | Free | View In iTunes |
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Two patients in Scotland get stem cell transplants to treat blindness | (Medical Xpress) -- Two people in Scotland have received stem cell transplants into their eyes in a clinical trial that is aimed at restoring vision in people that suffer some degree of blindness due to damage to the cornea. One of the patients has agreed to have their name released; Sylvia Paton, of Edinburgh. She suffers from a hereditary disease called aniridia which causes incomplete formation of the iris and leads to damage to the cornea. In Mrs. Paton’s case, the condition led to havening no iris at all in one eye and just ten percent vision, along with a heightened sensitivity to light. She received the transplant in February (performed by Dr. Ashish Agrawal) but neither she nor her team of doctors will know how effective the treatment has been for many more months. | 5/22/12 | Free | View In iTunes |
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A robot learns how to tidy up after you | (Phys.org) -- Sooner than you think, we may have robots to tidy up our homes. | 5/22/12 | Free | View In iTunes |
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Researchers uncover how plant skin is assembled | (Phys.org) -- For the first time, scientists have identified how a plant's skin is assembled. | 5/22/12 | Free | View In iTunes |
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Cycling may negatively affect male reproductive health, study finds | (Medical Xpress) -- A study by researchers at the UCLA School of Nursing has found that serious male cyclists may experience hormonal imbalances that could affect their reproductive health. | 5/22/12 | Free | View In iTunes |
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MIT biologist relishes the challenge of picking apart the cell's most complex structure | One of the most important structures in a cell is the nuclear pore complex a tiny yet complicated channel through which information flows in and out of the cells nucleus, directing all other cell activity. | 5/22/12 | Free | View In iTunes |
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Raspberry Pi to add camera later this year | (Phys.org) -- The Raspberry Pi, a uniquely priced, no casing computer that plugs into your TV and a keyboard., will be given a camera accessory later this year. That may be oh-so-what news if this were a mainstream machine but the Raspberry Pi is quite something else. This is a Model-A, Model-B $25 to $35 credit-card sized PC that grew out of The Raspberry Pi project, a UK based foundation. When the computer was made available in March, the devices first batch sold out in hours after sites distributing the product witnessed unprecedented traffic. | 5/22/12 | Free | View In iTunes |
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How one strain of MRSA becomes resistant to last-line antibiotic | Researchers have uncovered what makes one particular strain of methicillin-resistant Staphylococcus aureus (MRSA) so proficient at picking up resistance genes, such as the one that makes it resistant to vancomycin, the last line of defense for hospital-acquired infections. They report their findings in mBio, the online open-access journal of the American Society for Microbiology, on Tuesday May 22. | 5/22/12 | Free | View In iTunes |
| Total: 259 Episodes |
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