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7,976 articles mezi dny 1.5.2012 a 31.5.2012
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TUESDAY 1. MAY, 2012
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03:32
Taser Shot to the Chest Can Kill, a Study Warns
An analysis of eight people who went into cardiac arrest after receiving shocks from the devices highlights the risks they carry and the importance of using them properly.
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03:18
Female Panda Recovering After Artificial Insemination
The "black-and-white rock star" of the Smithsonian's National Zoo, female panda Mei Xiang, is recovering tonight (April 30) after being artificially inseminated with up to 800 million sperm.
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02:28The Simons Foundation plans to announce on Tuesday that the University of California, Berkeley, will be the home of a new center that combines computing theory with fields like biology or economics.
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01:44
Family disputes create rebel bees
Worker bees rebel when faced with the prospect of raising their nephews and nieces, research finds. -
01:38Mechanical moving figures being brought back to life
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01:26
Control of gene expression: Histone occupancy in your genome
When stretched out, the genome of a single human cell can reach six feet. To package it all into a tiny nucleus, the DNA strand is tightly wrapped around a core of histone proteins in repeating units -- each unit known as a nucleosome. To allow access for the gene expression machinery the nucleosomes must open up and regroup when the process is complete.
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01:26Researchers have invented a protein purifier that could help pharmaceutical companies save time and money. Chemists have developed high-performance membranes that are highly suitable for protein purification, a crucial step in the development of some new drugs.
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01:26Researchers have found novel compounds that disrupt the formation of amyloid, the clumps of protein in the brains of people with Alzheimer's disease believed to be important in causing the disease's characteristic mental decline. The so-called "spin-labeled fluorene compounds" are an important new target for researchers and physicians focused on diagnosing, treating and studying the disease.
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01:26New brain stimulation technology can prevent debilitating migraine attacks from occurring, a new study suggests. The technique, using transcranial direct current stimulation (tDCS), applies a mild electrical current to the brain from electrodes attached to the scalp.
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01:05About one baby is born every hour addicted to opiate drugs in the United States, according to new research. Physicians found that diagnosis of neonatal abstinence syndrome, a drug withdrawal syndrome among newborns, almost tripled between 2000 and 2009.
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00:54
Blood test could detect breast cancer risk
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00:35
Water can float on oil, suggest new findings defying conventional wisdom that could have important applications in cleaning up oil spills that endanger seashores and fisheries, researchers say.
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00:25Letter to the editor.
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00:24
Control of gene expression: Histone occupancy in your genome
When stretched out, the genome of a single human cell can reach six feet. To package it all into a tiny nucleus, the DNA strand is tightly wrapped around a core of histone proteins in repeating units—each unit known as a nucleosome. To allow access for the gene expression machinery the nucleosomes must open up and regroup when the process is complete. -
00:24Development of new therapies for a range of medical conditions—from common sports injuries to heart attacks—will be supported by a new production-scale microthread extruder designed and built by a team of graduate students and biomedical engineering faculty at Worcester Polytechnic Institute (WPI).
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00:24Historically, fly and human Polycomb proteins were considered textbook exemplars of transcriptional repressors, or proteins that silence the process by which DNA gives rise to new proteins. Now, work by a team of researchers at the Stowers Institute for Medical Research challenges that dogma.
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00:24Perched atop the sheer coastal cliffs of Ireland's Aran Islands, ridges of giant boulders have puzzled geologists for years. What forces could have torn these rocks from the cliff edges high above sea level and deposited them far inland?
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00:24Researchers at the University at Buffalo School of Management have proposed a better way of measuring the capabilities of IT service providers in a study recently published in IEEE Transactions on Engineering Management.
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00:24(Phys.org) -- A Bill has been introduced in Washington to stop employers and schools from demanding access to people’s social network accounts. On Friday, Rep. Eliot Engel (D-NY) presented SNOPA, which stands for the Social Networking Online Protection Act. Under SNOPA, employers can’t ask current workers or new job applicants for access to their social networking accounts. If employers ignored the ruling they would pay $10,000 as civil penalty. The ban on such information demands would also apply to schools.
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00:23Letter to the editor.
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00:21Letter to the editor.
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00:19Letter to the editor.
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00:16
All Aboard the Shanghai Maglev Train!
The fastest train in the world does a top speed of 270 mph -- 19 miles in 8 minutes. Experience the rush! -
00:14
A Stock Exchange for Your Personal Data
Companies already make billions because they know our online habits. What if we could take a cut?
Here's a job title made for the information age: personal data broker.
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00:08A vast expanse of fossilized trees more than 300 million years old — called a “botanical Pompeii” — could extend as much as 100 miles underneath southern Illinois.
Naposledy aktualizované zdroje
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ScienceNOW (dnes, 19:25)
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CBC - Technology & Science News (dnes, 18:47)
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National Geographic News (dnes, 18:08)
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Sci-Tech Today (dnes, 13:42)
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EurekAlert (dnes, 06:00)
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NASA (17. 5, 02:56)
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TIME (27. 7, 08:30)
