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43,082 articles from EurekAlert
- title
- EurekAlert
- tags
- description
- The premier website for science news since 1996. A service of AAAS.
- last updated
- September 2, 2010 (06:00)
- homepage
- http://www.eurekalert.org
- feed url
- http://www.eurekalert.org/rss.xml
- date added
- December 19, 2007 (14:13)
- meta
- alexa, technorati, rojo
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THURSDAY 2. SEPTEMBER, 2010
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06:00
'Basal-like' breast cancer does not originate from basal stem cells
New research uncovers a case of mistaken identity that may have a significant impact on future breast cancer prevention and treatment strategies. The study, published by Cell Press in the Sept. 3 issue of the journal Cell Stem Cell, suggests that despite their "stem cell-like" characteristics, most aggressive breast tumors are not derived from normal mammary gland stem cells. -
06:0016.6 million small business employees work in firms that will be eligible for tax credits under the Affordable Care Act, according to a new Commonwealth Fund report. The credits, designed to offset health insurance premium costs and help small businesses afford and maintain health insurance, are available in taxable years beginning in 2010. Researchers estimate that by 2013, 3.4 million workers may work in firms that take advantage of the tax credit.
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06:00The American Society for Biochemistry and Molecular Biology expressed its disapproval and disappointment this week in response to the Aug. 23 court ruling that temporarily bars federal funding of embryonic stem-cell research.
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06:00A chemical analysis of the bones of ancient Nubians shows that they were regularly consuming tetracycline, most likely in their beer. The finding is the strongest evidence yet that the art of making antibiotics, which officially dates to the discovery of penicillin in 1928, was common practice nearly 2,000 years ago. The Emory University study finds that it's likely this prehistoric population was using empirical evidence to develop therapeutic agents.
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06:00Ants are not out of their weight class when defending trees from the appetite of nature's heavyweight, the African elephant, a new University of Florida study finds.
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06:00Bermuda has warnings up as Tropical Storm Fiona approaches, and GOES-13 satellite imagery from today shows that Fiona, although packing a punch, is a much smaller system that her brother, the Category 4 Hurricane Earl.
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06:00Bold and coordinated leadership at the federal level is essential to create secure, long-term, sustainable biomedical research funding policies based on strategic priorities, say the authors of a commentary about America's fledgling biomedical research framework published in this week's Journal of the American Medical Association.
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06:00Biophysicists in Bochum have discovered a diode for protons: just like the electronic component determines the direction of flow of electric current, the "proton diode" ensures that protons can only pass through a cell membrane in one direction. Water molecules play an important role here as active components of the diode.
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06:00Unexpectedly, scientists at the European Molecular Biology Laboratory have now discovered a true counterpart of the cerebral cortex in an invertebrate, a marine worm. Their findings, published today in Cell, give an idea of what the most ancient higher brain centers looked like, and what our distant ancestors used them for.
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06:00Researchers at the California Institute of Technology (Caltech) have devised a new technique -- using a sheet of carbon just one atom thick -- to visualize the structure of molecules. The technique, which was used to obtain the first direct images of how water coats surfaces at room temperature, can also be used to image a potentially unlimited number of other molecules, including antibodies and other biomolecules.
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06:00Roberto Carlos' free kick goal against France in 1997's Tournoi de France is thought by many to have been the most skillful free kick goal ever scored but by others to have been an incredible fluke. Now a group of French physicists have computed the trajectory and shown that Carlos' goal was no fluke.
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06:00School children who consume foods purchased in vending machines are more likely to develop poor diet quality -- and that may be associated with being overweight, obese or at risk for chronic health problems such as diabetes and coronary artery disease, according to research from the University of Michigan Medical School.
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06:00The existence of chronic Lyme disease is an issue of sharp debate within the medical community. Many doctors are concerned with the potential dangers associated with the prolonged and intensive use of oral and intravenous antibiotics (the recommended treatment for chronic Lyme disease), such as blood clots and life threatening infections. A study soon to be published in the Journal of Pediatrics attempts to determine how often chronic Lyme disease is actually being diagnosed and treated.
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06:00Cigarette smoke shuts off a key enzyme in airways that regulates the body's response to inflammation, according to findings from the University of Alabama at Birmingham published online today at Science Express. The UAB researchers say smoke inhibits the enzyme, called Leukotriene A4 Hydrolase (LTA4H), causing it to fail in its job of shutting down white blood cells following a successful response to inflammation.
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06:00Cluster has spent a decade revealing previously hidden interactions between the Sun and Earth. Its studies have uncovered secrets of aurora, solar storms, and given us insight into fundamental processes that occur across the Universe. And there is more work to do.
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06:00The researchers say that their study results show that suppression of melatonin due to exposure to LAN is linked to the worrying rise in the number of cancer patients over the past few years.
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06:00The Department of Computer Science and Technology, Peking University, Beijing, China, has shown that a novel dynamic memory mapping model brings about additional flexibility to virtual resource management, leading to the feature-adjustable design of a virtual machine monitor. The study is reported in issue 53 of Science China Information Sciences.
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06:00Sugar, salt, alcohol and a little serendipity led Northwestern University researchers to discover a new class of nanostructures that could be used for gas storage and food and medical technologies. And the compounds are edible. The porous crystals are the first known all-natural metal-organic frameworks (MOFs) that are simple to make. Most other MOFs are made from petroleum-based ingredients, but the Northwestern MOFs you can pop into your mouth and eat, and the researchers have.
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06:00The Key Laboratory of Applied Superconductivity, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, and China Research have collaborated to reveal the heat-treatment effects on the superconducting properties of Ag-doped Sr0.6K0.4Fe2As2 compounds. Because of its significant research value, the study is reported in issue 7 of Science in China: Physics, Mechanics & Astronomy.
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06:00Statements, published in the journal Maturitas, cover the management of the menopause in the context of obesity, epilepsy, endometriosis and premature ovarian failure
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06:00Scientists have devised a method for coaxing mouse embryonic stem cells into forming a highly specific motor neuron subtype. The research, published by Cell Press in the Sept. 3 issue of the journal Cell Stem Cell, provides new insight into motor neuron differentiation and may prove useful for devising and testing future therapies for motor neuron diseases.
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06:00Biopharmaceutical firms and other life science organizations are taking definitive steps toward creating greener working environments and developing more sustainable operations, reports Genetic Engineering & Biotechnology News. This promising trend was made clear through a series of presentations and panel discussions that took place at GEN's "GreenBioPharma" conference, which was recently held in Philadelphia.
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06:00For severe migraine sufferers, psychological treatments build on the benefits of drug therapy, according to a new study1 by Elizabeth Seng and Dr. Kenneth Holroyd from Ohio University in the US. Their comparison of the effects of various treatment combinations for severe migraine -- drug therapy with or without behavioral management -- shows that those patients receiving the behavioral management program alongside drug therapy are significantly more confident in their ability to use behavioral skills to effectively self-manage migraines.
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06:00A study comparing a University of Pennsylvania method for evaluating a dog's susceptibility to hip dysplasia to the traditional American method has shown that 80 percent of dogs judged to be normal by the traditional method are actually at risk for developing osteoarthritis and hip dysplasia, according to the Penn method.
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06:00The September cover story of the nation's leading cancer journal, "Cancer Research," features a new study from The Hormel Institute, University of Minnesota, that links capsaicin, a component of chili peppers, to skin cancer.
Naposledy aktualizované zdroje
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ScienceDaily (dnes, 04:22)
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BBC Science/Nature (dnes, 02:49)
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PhysOrg (dnes, 02:23)
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Yahoo! (dnes, 01:54)
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Guardian Unlimited Science (dnes, 01:05)
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CBC - Technology & Science News (dnes, 00:56)
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Discovery (dnes, 00:49)
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ScienceNOW (dnes, 00:23)
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National Geographic News (2. 9, 23:56)
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NYT > Science (2. 9, 23:54)
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NASA (2. 9, 22:54)
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TIME (2. 9, 22:23)
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Sci-Tech Today (2. 9, 21:26)
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Astronomy.com (2. 9, 00:00)
