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latitudes in Medical News

UCSD researchers show link between vitamin D status, breast cancer

... for breast cancer incidence rates, and a horizontal axis for latitude. The latitudes range from -50 for the southern hemisphere, to zero for the equator, to +70...a smile. In general, breast cancer incidence was highest at the highest latitudes in both hemispheres, said Garland. Even after controlling for known variabl...

More sun exposure may be good for some people

...radient in vitamin D production," Setlow says, "with people in the northern latitudes producing significantly less than people nearer the equator." In populat... survival rates for these cancers, they found that people from the southern latitudes were significantly less likely to die from these internal cancers than peop...

Sunlight Helps Put Lung Cancer in the Shade

...earch, much of it by the same group, has found a strong association between breast cancer, colon cancer and other internal-organ cancers and living in latitudes with less sunlight. For example, one paper observed double the death rate from colon cancer above the U.S. Mason-Dixon line as below, leading the rese...

Evidence of TB Found in 500,000-Year-Old Fossil

... the new specimen of the human species Homo erectus , lends support to the theory that dark-skinned people who migrated northward from low, tropical latitudes produced less vitamin D, which can have a negative effect on the immune system and the skeleton. People with dark skin produce less vitamin D becau...

Most ancient case of tuberculosis found in 500,000-year-old human; points to modern health issues

...he theory that dark-skinned people who migrate northward from low, tropical latitudes produce less vitamin D, which can adversely affect the immune system as wel... characteristics in the communities: a path of migration from low, tropical latitudes to northern temperate regions and darker skin color. People with dark sk...

Global view shows link between endometrial cancer and vitamin D status

...endometrial cancer incidence rates, and a horizontal axis for latitude. The latitudes range from -50 for the southern hemisphere, to zero for the equator, to +70...le. In general, endometrial cancer incidence was highest at the highest latitudes in both hemispheres, said Garland. Even after controlling for known variabl...

Global Warming: Lessons of History Help the Future

.... And in the 15th century, the last Viking settlement in Greenland petered out, a victim of the "Little Ice Age" that brought bitter chill to northern latitudes after several balmy centuries. "In the worst cases of complete collapse, everybody in the society emigrated or died," Diamond, a professor of ...

Tropical Cyclones Play Important Role in Climate-control

... the atmosphere works like a conveyer belt travelling from the south to the north, passing through the Pacific Ocean and Indian oceans and past warmer latitudes warming the water brought to North America and Europe, in the tropics, this pattern must be reversed. Warm, buoyant water must be mixed downwa...

Vitamin D Reduces Cancer Risk

...also influence your bodys ability to convert sunlight into vitamin D. People with dark skin have more difficulty making the vitamin. Persons living at latitudes north of the 37th parallel Omaha is near the 41st parallel cannot get their vitamin D naturally during the winter months because of the suns angle. ...

Ice Age in Europe Dried Up West African Monsoons

... monsoon intensities. The researchers found that when the northern latitudes were frozen over, monsoon rains were much weaker, only gaining strength aga...suspected connection between the West African monsoon and climate at higher latitudes - especially over geological timescales. "Something that happens r...
latitudes in Medical Technology

Researchers Find Surprising Pattern of Influenza Spread in South America and Tropics

...Brazil. The interest in Brazil arises because the country covers a range of latitudes and crosses several regions, including tropical and sub-tropical climates. ...ble since less is known about the circulation of influenza viruses at these latitudes and how epidemics bridge and annually alternate between both hemispheres fo...
latitudes in Biological News

Microbes, by latitudes and altitudes, shed new light on life's diversity

Microbial biologists, including the University of Oregon's Jessica L. Green, may not have Jimmy Buffett's music from 1977 in mind, but they are changing attitudes about evolutionary diversity on Earth, from oceanic latitudes to mountainous altitudes. In two recent National Science Foundation-fu...

Warmer environment means shorter lives for cold-blooded animals

....Y., July 27, 2009 - Temperature explains much of why cold-blooded organisms such as fish, amphibians, crustaceans, and lizards live longer at higher latitudes than at lower latitudes, according to research published this week in the Proceedings of the National Academy of Sciences ( PNAS ) online. Assistant...

Australia's climate: Drought and flooding in annual rings of tropical trees

... Annual rings are acclaimed in representing natural climate archives. For the temperate latitudes it is known that the growth of these annual rings depend mainly on temperature and precipitation. In the tropics, however, with only slight seasonal ...

First ever worldwide census analysis of caribou/reindeer numbers reveals dramatic decline

...s and Wildlife at the University of Alberta, says the decline raises serious concerns not only for the animals, but also for people living in northern latitudes who depend on the animals for their livelihood. "In this research we tried to look beyond the science and focus also on the impact on the economies...

Cantabrian cornice has experienced seven cooling and warming phases over past 41,000 years

...ecame extinct around 10,000 years ago while "some cold-adapted species, which had managed to survive, moved to the north of Europe, leaving our warmer latitudes behind", the scientist concludes. ...

NSF announces funding for Alaska Region Research Vessel

...ted with the health of Alaska's fisheries. "The ARRV will greatly expand the nation's capability to understand the nature of climate change at high latitudes and how the marine environment and its important fisheries resources are affected," said Buck Sharpton, vice chancellor for research at UAF. Accord...

Ecologists question effects of climate change on infectious diseases

...ay cause poleward range shifts in the areas suitable for diseases as higher latitudes become warmer and regions near the equator become too hot. The newly su...ca and South America, for example, humans have historically settled in high latitudes and altitudes. If climate change makes these areas more fit for mosquito br...

April 2009 Geology and GSA Today media highlights

...d years ago. They interpret the apparent blend of "Greenlandic" and "Antarctic" cold phases as evidence for their co-occurrence in the southern middle latitudes in Patagonia, and hypothesize that the position of the Antarctic Polar Front modulated the strength of these cold events in regions to the north or so...

CO2 drop and global cooling caused Antarctic glacier to form

... now an assistant professor at the University of Hong Kong. Further, he said, the substantial cooling that occurred in both Northern and Southern high latitudes suggests that a decline in CO 2 level, rather than a localized change of ocean circulation drove the climate transition. The ice formed over Antar...

February 2009 Geology and GSA Today media highlights

...t when the Arctic had a much warmer climate. Aurorachelys, a newly discovered fossil turtle found in the High Canadian Arctic, lived in ice-free polar latitudes some 92-86 million years ago. Aurorachelys has affinities with turtles in Mongolia, and documents faunal interchange between Asia and North America du...
latitudes in Biological Technology

First Seed Sales of Dedicated Energy Crops Begin

...l areas," noted Hardimon. A similar cultivar, EG 1102, is adapted farther north than EG 1101. Several switchgrass varieties suited to mid and northern latitudes are also available from Blade. ES 5200 and ES 5201 are two high-biomass sorghum hybrids that offer high yield potential in single-cut harvest ...

UW space scientists use Keck telescope to study wild weather of Uranus

...us, the 18,000-mile-long complex of clouds dissipated completely during the span of a month. These more dynamic systems seem to develop at northern latitudes where they rise to even higher latitudes, apparently using up energy and dissipating relatively rapidly, Sromovsky said. Together, the new images o...
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