News tagged with population theory
Native Americans descended from a single ancestral group, DNA study confirms
Apr 29, 2009 |
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For two decades, researchers have been using a growing volume of genetic data to debate whether ancestors of Native Americans emigrated to the New World in one wave or successive waves, or from one ancestral ...
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Bacteria offer insights into human decision making
Dec 08, 2009 |
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(PhysOrg.com) -- Scientists studying how bacteria under stress collectively weigh and initiate different survival strategies say they have gained new insights into how humans make strategic decisions that ...
Artificial refuges created to save the reptiles of Doņana
Nov 30, 2009 |
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The Aznalcóllar mining accident more than 11 years ago, which contaminated part of the Doņana National Park, also damaged reptile habitat there. Now a team of Spanish researchers, who have been studying ...
Is global warming unstoppable?
Nov 23, 2009 |
3.6 / 5 (55) |
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In a provocative new study, a University of Utah scientist argues that rising carbon dioxide emissions - the major cause of global warming - cannot be stabilized unless the world's economy collapses or society builds the ...
Termite creates sustainable monoculture fungus-farming
Nov 20, 2009 |
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(PhysOrg.com) -- Food production of modern human societies is mostly based on large-scale monoculture crops, but it now appears that advanced insect societies have the same practice. Our societies took just ...
Scientists find frog legs trade may facilitate spread of pathogens
Nov 19, 2009 |
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Most countries throughout the world participate in the $40-million-per-year culinary trade of frog legs in some way, with 75 percent of frog legs consumed in France, Belgium and the United States. Scientists ...
Darwin's mockingbirds DNA research may help species recovery
Nov 18, 2009 |
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(PhysOrg.com) -- New research could help protect the future of a rare bird in the Galapagos Islands that was an inspiration for Darwins theory of evolution by natural selection, scientists report in a paper ...
Studies suggest males have more personality
Nov 18, 2009 |
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(PhysOrg.com) -- Males have more pronounced personalities than females across a range of species - from humans to house sparrows - according to new research. Consistent personality traits, such as aggression ...
Emulating Western lifestyles: Consumption and carbon footprints in less industrialized countries
Other Sciences / Social Sciences
Nov 18, 2009 |
5 / 5 (1) |
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In recent decades, a new global middle class has exploded, with a total population exceeding one billion people. A new study in the Journal of Consumer Research explores the consumption attitudes of some of these members of the ...
Advances in malaria research show promise for fight against one of the world's deadliest diseases
Nov 12, 2009 |
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In a novel approach at disseminating scientific research, the Johns Hopkins Malaria Research Institute (JHMRI) will hold a web summit to release the latest breakthroughs in malaria research, including new approaches to boosting ...
PET imaging before radiation not ideal for determining boost radiation doses
Nov 03, 2009 |
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(PHILADELPHIA) Positron emission tomography (PET) imaging of non-small cell lung cancer prior to receiving radiation therapy should not be the basis for determining areas that may benefit from higher doses of radiation, according ...
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