News tagged with pivotal period
Explosive growth of life on Earth fueled by early greening of planet
Space & Earth / Earth Sciences
Jul 08, 2009 |
4.7 / 5 (10) |
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Earth's 4.5-billion-year history is filled with several turning points when temperatures changed dramatically, asteroids bombarded the planet and life forms came and disappeared. But one of the biggest moments ...
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Not a moment to lose in therapy for acute stroke
Sep 24, 2008 |
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In an editorial response to a report in the September 25 issue of the New England Journal of Medicine on the efficacy of intravenous thrombolysis treatment in the hours after acute ischemic stroke, Patrick Lyden, M.D., profes ...
Domestication of the donkey
Other Sciences / Archaeology & Fossils
Mar 10, 2008 |
4.6 / 5 (7) |
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An international group of researchers has found evidence for the earliest transport use of the donkey and the early phases of donkey domestication, suggesting the process of domestication may have been slower and less linear ...
Lymph nodes can be key in spreading prion infectivity
Sep 25, 2007 |
3.5 / 5 (2) |
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Lymph nodes can be crucial for spreading low doses of infective prion agents -the pathogens responsible for conditions such as scrapie and Creutzfeldt-Jakob disease - into the nervous system, according to new research published ...
Determining genetic signature of lung tumors can help guide treatment
May 20, 2008 |
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The first U.S. clinical trial using genetic screening to identify lung tumors likely to respond to targeted therapies supports the use of those drugs as first-line treatment rather than after standard chemotherapy has failed. ...
Volcanoes played pivotal role in ancient ice age, mass extinction
Space & Earth / Earth Sciences
Oct 26, 2009 |
4.7 / 5 (16) |
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(PhysOrg.com) -- Researchers here have discovered the pivotal role that volcanoes played in a deadly ice age 450 million years ago.
'Copernicium' proposed as name for newly discovered element 112
Jul 14, 2009 |
5 / 5 (5) |
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In honor of scientist and astronomer Nicolaus Copernicus (1473-1543), the discovering team around Professor Sigurd Hofmann suggested the name "copernicium" with the element symbol "Cp" for the new element 112, discovered ...
There may be a 'party' in your genes
6 hours ago |
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Genetics play a pivotal role in shaping how individual's identify with political parties , according to an article in a recent issue of Political Research Quarterly, the official journal of the Western Political Science Associ ...
Archaeologists find cache of tablets in 2,700-year old Turkish temple
Other Sciences / Archaeology & Fossils
Aug 10, 2009 |
4.9 / 5 (14) |
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(PhysOrg.com) -- Excavations led by a University of Toronto archaeologist at the site of a recently discovered temple in southeastern Turkey have uncovered a cache of cuneiform tablets dating back to the Iron ...
Repairing DNA damage: Researchers discover critical process in cancer treatment
Nov 06, 2008 |
4.8 / 5 (8) |
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(PhysOrg.com) -- From the sun's UVA rays to tobacco smoke, our environment is chock-full of DNA-damaging agents that can lead to cancer. Thanks to our body's DNA repair mechanisms, however, the effects of many carcinogens ...
Unique immunization method provides insights about protective anti-malaria immune response
Jul 30, 2009 |
2.5 / 5 (2) |
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In this week's New England Journal of Medicine, scientists in Singapore, The Netherlands and France report that they have developed a novel immunization method that will induce fast and effective protection in humans agains ...
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