Population
hideIn biology, a population is the collection of inter-breeding organisms of a particular species; in sociology, a collection of human beings. Individuals within a population share a factor may be reduced by statistical means, but such a generalization may be too vague to imply anything. Demography is used extensively in marketing, which relates to economic units, such as retailers, to potential customers. For example, a coffee shop that wants to sell to a younger audience looks at the demographics of an area to be able to appeal to this younger audience.
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News tagged with population
Large reservoir of mitochondrial DNA mutations identified in humans
Aug 11, 2008 |
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Researchers at the University of Newcastle, England, and the Virginia Bioinformatics Institute at Virginia Tech in the United States have revealed a large reservoir of mitochondrial DNA mutations present in the general population. ...
Researchers achieve major breakthrough with water desalination system
Jul 13, 2009 |
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(PhysOrg.com) -- Concern over access to clean water is no longer just an issue for the developing world, as California faces its worst drought in recorded history. According to state's Department of Water Resources, supplies ...
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 ...
Changes in net flow of ocean heat correlate with past climate anomalies
Aug 14, 2009 |
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Physicists at the University of Rochester have combed through data from satellites and ocean buoys and found evidence that in the last 50 years, the net flow of heat into and out of the oceans has changed ...
Skyscraper greenhouses to sprout in crowded cities: expert
Jun 05, 2009 |
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Vertical greenhouses that grow organic fruit and vegetables smack in the middle of crowded cities where land is scarce may soon be a reality, a Swedish company developing the project said Friday.
Family planning a major environmental impact
Jul 31, 2009 |
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Some people who are serious about wanting to reduce their "carbon footprint" on the Earth have one choice available to them that may yield a large long-term benefit - have one less child.
Why sex with a partner is better (w/ Video)
Oct 21, 2009 |
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(PhysOrg.com) -- OK, it takes two for human reproduction, and now it seems that plants and animals that can rely on either a partner or go alone by self-fertilization give their offspring a better chance for ...
New analysis shows 'hobbits' couldn't hustle
Other Sciences / Archaeology & Fossils
May 06, 2009 |
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A detailed analysis of the feet of Homo floresiensis—the miniature hominins who lived on a remote island in eastern Indonesia until 18,000 years ago -- may help settle a question hotly debated among paleontologists: how si ...
Climate change, human activity and wildfires
Space & Earth / Earth Sciences
Sep 21, 2008 |
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Climate has been implicated by a new study as a major driver of wildfires in the last 2,000 years. But human activities, such as land clearance and fire suppression during the industrial era (since 1750) have created large ...
Population policy needed for the UK in order to combat climate change
Jul 25, 2008 |
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The biggest contribution UK couples can make to combating climate change would be to have only two children or at least have one less than they first intended, argues an editorial published on BMJ.com today.
Genetic study clarifies African and African-American ancestry
Dec 21, 2009 |
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People who identify as African-American may be as little as 1 percent West African or as much as 99 percent, just one finding of a large-scale, genome-wide study of African and African-American ancestry released ...
Buried Coins Key to Roman Population Mystery?
Oct 05, 2009 |
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(PhysOrg.com) -- The first century BC in Italy was culturally a brilliant age, unequaled by any other period in Roman history. It was a time of Cicero, Caesar, Vergil, Horace and many other major literary ...
New formula predicts how people will migrate in coming decades
Sep 29, 2008 |
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Nearly 200 million people now live outside their country of birth. But the patterns of migration that got them there have proven difficult to project. Now scientists at Rockefeller University, with assistance from the United ...
Population growth puts dent in natural resources
Oct 08, 2008 |
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It's a 500-pound gorilla that Robert Criss, Ph.D., professor of earth and planetary sciences in Arts & Sciences at Washington University in St. Louis, sees standing on the speaker's dais at political rallies, debates and ...
Study catches two bird populations as they split into seperate species
Jul 14, 2009 |
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A new study finds that a change in a single gene has sent two closely related bird populations on their way to becoming two distinct species. The study, published in the August issue of the American Naturalist, is one of ...
