Daily non-political popular news in brief.

New World Stopover: People may have entered the Americas in stages

People first reached the edge of the Americas about 40,000 years ago but had to stay put for at least 20,000 years before melting ice sheets allowed them to move south and settle the rest of the continent.

Read more »

Keywords: world, stopover, people, entered, americas, stages, america, stage

« Previous | Next »

Similar news on "New World Stopover: People may have entered the Americas in stages":

1. Humans inhabited New World's doorstep for 20,000 years
   02-12-2008 · EurekAlert!
   The human journey from Asia to the New World was interrupted by a 20,000-year layover in Beringia. Furthermore, the New World was colonized by approximately 1,000 to 5,000 people -- a substantially higher number than the 100 individuals of previous estimates. The developments, published in Wednesday's PLoS ONE, help shape understanding of how the Americas came to be populated -- not through a single expansion event but in three distinct stages separated by thousands of generations.
   Similar news · Read more »
   
2. Blood protein detects lung cancer, even at earliest stage
   09-18-2007 · EurekAlert!
   Biopharmaceutical researchers have found a protein in blood they say is linked to all stages of lung cancer but which rarely shows up in the blood of people without the disease. Testing for this protein might help physicians decide whether smokers or others at high risk for lung cancer should be referred for lung imaging, say investigators, who presented their findings today in Atlanta, Ga., at the AACR's second International Conference on Molecular Diagnostics in Cancer Therapeutic Development.
   Similar news · Read more »
   
3. New age for ancient Americans
   03-03-2007 · Science News Online
   New radiocarbon dates indicate that the Clovis people, long considered the first well-documented settlers of the New World, inhabited North America considerably later and for a much shorter time than previously thought.
   Similar news · Read more »
   
4. Receptor protein appears to be key in breakdown of kidney filtration
   12-19-2007 · EurekAlert!
   Massachusetts General Hospital researchers have identified a new molecular pathway that appears to be involved in urinary protein loss, an early-stage kidney disease thet affects 100 million people around the world, and is caused by a breakdown in the kidney's filtering structures.
   Similar news · Read more »
   
5. A researcher identifies the parasites responsible for Chagas and Leishmaniasis epidemics
   06-04-2007 · EurekAlert!
   Both diseases have already been recognized by the WHO as a public health problem. They affect around 30 million people throughout the world, particularly in South America. Although no specific medicines have been developed yet, this study conducted by the University of Granada will be an important step towards the discovery of a treatment.
   Similar news · Read more »
   
6. Ecological restoration -- a global strategy for mitigating climate change
   08-17-2007 · EurekAlert!
   The Society for Ecological Restoration International issued a position statement on global climate change during its joint conference with the Ecological Society of America "Ecological Restoration in a Changing World" held last week in San Jose, Calif. The SER position statement has been endorsed by the ESA governing board. An estimated 4,500 people are participating in the meeting.
   Similar news · Read more »
   
7. Ecology in an era of globalization
   05-02-2007 · EurekAlert!
   In a special issue, scientists from the Americas explore ecology in an era of globalization, looking at the impacts of human migration, production systems, and invasive species on ecosystems and people throughout North, Central, and South America.
   Similar news · Read more »
   
8. Heeding the WARNing from malaria’s past
   09-05-2007 · EurekAlert!
   A global network to monitor drug resistance and guide malaria treatment and prevention policies is being launched. As outlined in a series of articles in the online open access publication, Malaria Journal, the World Antimalarial Resistance Network (WARN) aims to provide a globally co-ordinated effort to tackle the disease, which is estimated to kill between 1 and 2.7 million people every year.
   Similar news · Read more »
   
9. Home computers to help researchers better understand universe
   10-24-2007 · EurekAlert!
   Want to help unravel the mysteries of the universe? A new distributed computing project designed by a University of Illinois researcher allows people around the world to participate in cutting-edge cosmology research by donating their unused computing cycles.
   Similar news · Read more »
   
10. Living arrangements, health and well-being: A European perspective
    11-15-2007 · EurekAlert!
    Ageing populations are an increasing issue for the Western world. The proportion of people over aged 60 is growing plus there has been a rise in older men and women living alone and a decline in those living with children or relatives. A new study, funded by the Economic and Social Research Council, analysed the impact of living alone, with a spouse or with others on the health and happiness of older people and how it varies within Europe and in England and Wales.
    Similar news · Read more »