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373 articles from TUESDAY 17.7.2012
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TUESDAY 17. JULY, 2012
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06:00
Penn expert addresses ethical implications of testing for Alzheimer's disease risk
Questions remain about how diagnostic tests for Alzheimer's disease can be used in research studies examining potential interventions to treat and prevent the disease. Experts from the Perelman School of Medicine at the University of Pennsylvania will today participate in a panel at the Alzheimer's Association International Conference 2012 discussing ways to ethically disclose and provide information about test results to asymptomatic older adults. -
06:00People who experience a physical health problem, from diabetes and back pain to cancer or heart disease, are three times more likely to seek mental health care than patients who report having no physical ailment, according to a new study.
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06:00Urging primary care physicians to focus on the top risks for stroke and dementia saved money and lives. Fewer patients needed long-term care when primary care doctors focused on the health hazards of high blood pressure, smoking, high cholesterol, diabetes, irregular heartbeats and depression.
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06:00Researchers from the Bellvitge Biomedical Research Institute at the University of Barcelona have coordinated a research into how the IDPN nitrile causes neurological syndromes similar to those of the amyotrophic lateral sclerosis, a severe neuromuscular degenerative disease. The study, led by Jordi Llorens, has been recently published in Neuropathology and Applied Neurobiology journal.
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06:00Researchers at UCL and Harvard have found that we punish cheats only when they end up better off than us, in a study that challenges the notion that punishment is motivated by revenge.
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06:00As spatial planning is used increasingly to manage fisheries and other ocean resources, researchers are working to determine the best ways to use and refine the various spatial management tools. Among them are marine protected areas (MPAs), one of the most common methods, which limit or entirely curtail fishing in a given area.
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06:00Just as the globalization of trade and travel is rapidly evolving, so is the globalization of infectious diseases and the need for cooperative approaches to detect, prevent and control them.
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06:00A new study published today in PLoS Medicine re-evaluates the role of public reporting of hospital-acquired infection data. The study, conducted by Nick Daneman and colleagues, used data from all 180 acute care hospitals in Ontario, Canada. The investigators compared the rates of infection of Clostridium difficile colitis prior to, and after, the introduction of public reporting of hospital performance; public reporting was associated with a 26 percent reduction in C. difficile cases.
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06:00Researchers at MIT have developed a new approach to creating the complex array of wires and connections on microchips, using a system of self-assembling polymers. The work could eventually lead to a way of making more densely packed components on memory chips and other devices.
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06:00Cedars-Sinai researchers have linked Kawasaki Disease, a serious childhood illness that causes inflammation of blood vessels throughout the body, with early-onset and accelerated atherosclerosis, a leading cause of heart disease in adults.
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06:00Changing the way that Medicare payments are adjusted to account for regional variations in the cost of providing care as recommended by a previous report from the Institute of Medicine.
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06:00Researchers from the Hebrew University and Weizmann Institute have developed a technique to cause apoptosis -- programmed cell death. In two proteins involved in apopotosis -- mitochondrial carrier homologue 2 and truncated BID -- they found the regions that bind to each other to help initiate apoptosis. They then developed peptides that inhibited the binding process, which in lab experiments resulted in the death of human-origin cancer cells. This is a potential target for the development of anticancer drugs that will stimulate apoptosis.
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06:00In this week's PLoS Medicine, Joseph Tucker from the University of North Carolina, Chapel Hill, North Carolina, USA and colleagues lay out a social entrepreneurship for sexual health approach that focuses on decentralized community delivery, multisectoral networks, and horizontal collaboration (business, technology, and academia).
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06:00A buildup of sodium in the brain detected by MRI may be a biomarker for the degeneration of nerve cells that occurs in patients with multiple sclerosis.
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06:00A new collection of compounds, called "bryologs" -- derived from a tiny marine organism -- activate hidden reservoirs of the virus that currently make the disease nearly impossible to eradicate.
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06:00In the first detailed analysis of the global health effects of the Fukushima Daiichi nuclear power plant disaster, researchers estimate the number of deaths and cases of cancer worldwide resulting from the release of radiation.
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06:00Stress can promote breast cancer cell colonization of bone, Vanderbilt Center for Bone Biology investigators have discovered.The studies, reported July 17 in PLoS Biology, demonstrate in mice that activation of the sympathetic nervous system -- the "fight-or-flight" response to stress - primes the bone environment for breast cancer cell metastasis. The researchers were able to prevent breast cancer cell lesions in bone using propranolol, a cardiovascular medicine that inhibits sympathetic nervous system signals.
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06:00Physicians tend to share patients with colleagues who have similar personal traits and practice styles, and there is substantial variation in physician network characteristics across geographic areas.
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06:00Two powerful brain chemical systems work together to paralyze skeletal muscles during rapid eye movement (REM) sleep, according to new research in the July 18 issue of the Journal of Neuroscience. The finding may help scientists better understand and treat sleep disorders, including narcolepsy, tooth grinding and REM sleep behavior disorder.
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06:00A detailed study of heart muscle function in mice has uncovered evidence to explain why exercise is beneficial for heart function in Type 2 diabetes. The research team, led by scientists at the Johns Hopkins University School of Medicine, found that greater amounts of fatty acids used by the heart during stressful conditions like exercise can counteract the detrimental effects of excess glucose and improve the diabetic heart's pumping ability in several ways.
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06:00Researchers at Albert Einstein College of Medicine of Yeshiva University have uncovered one of the mechanisms by which aging may compromise the ability of the immune system to fight infections and respond to vaccines. The study, conducted in aging mice, shows that administering antioxidants may help reverse this loss of immune function. The findings were published online this month in the journal Cell Reports.
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06:00A follow-up study of more than 34,000 women in Sweden has shown that moderate drinkers, in comparison with abstainers, were at significantly lower risk of developing rheumatoid arthritis (RA), an often serious and disabling type of arthritis. RA is known to relate to inflammation, and it is thought that this inflammation is blocked to some degree by the consumption of alcohol.
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06:00Frequent abuse by a parent can increase a child's cancer risk in adulthood, and the effects are especially significant when mothers abuse their daughters and fathers abuse their sons, according to new research from Purdue University.
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06:00Two giant donuts of this plasma surround Earth, trapped within a region known as the Van Allen Radiation Belts. The belts lie close to Earth, sandwiched between satellites in geostationary orbit above and satellites in low Earth orbit (LEO) are generally below the belts. A new NASA mission called the Radiation Belt Storm Probes (RBSP), due to launch in August 2012, will improve our understanding of what makes plasma move in and out of these electrified belts wrapped around our planet.
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06:00Big seeds produced by tropical trees such as black palms were probably once ingested and then left whole by huge mammals called gomphotheres.
Naposledy aktualizované zdroje
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PhysOrg (dnes, 21:25)
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Guardian Unlimited Science (dnes, 20:07)
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BBC Science/Nature (dnes, 19:02)
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Yahoo! (dnes, 17:13)
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Sci-Tech Today (dnes, 15:23)
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National Geographic News (dnes, 14:22)
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NYT > Science (dnes, 05:02)
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CBC - Technology & Science News (dnes, 01:20)
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ScienceDaily (18. 5, 21:37)
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Technology Review Feed - Tech Review Top Stories (18. 5, 06:29)
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ScienceNOW (18. 5, 00:23)
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NASA (17. 5, 02:56)
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Discovery (7. 3, 18:11)
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TIME (27. 7, 08:30)
