Science Source January 20, 2009 DVD
EN_00957889_0688
Diver re-emerges from the frigid waters of McMurdo Sound, Antarctica, after roughly 30 minutes underwater. They members of a research team from the University of Albany's School of Public Health, headed by biomedical scientist Sam Bowser. The team, supported by grants from the National Science Foundation's U.S. Antarctic Program, are collecting samples for research on single-celled creatures called Foraminifera. The primary research focus has been to try and understand as much of the fundamental biology of Foraminifera as possible, including habitat preference, life cycle, reproductive patterns, eating habits, and evolutionary history. Foraminifera are among the most abundant organisms in the oceans. They are usually less than 1 millimeter in size, but "larger" Foraminifera may reach the size of a fingernail and are able to capture and eat creatures many times their own mass. Some types of Foraminifera build tiny but sophisticated shells out of grains of sand held together with a natural, but extremely effective underwater adhesive. Bowser is also interested in the role the creatures play in recycling organic nutrients in the oceans. The huge numbers of tiny animals also act as a "carbon sink," absorbing carbon from the water to make their shells, so scientists are very interested in knowing how the animal's contribute to balancing so-called greenhouse gases, such as CO2, in the atmosphere. Bowser believes if his research leads to an understanding of the chemistry underlying Foraminifera's naturally produced glue, it could lead to the development of new stronger, waterproof adhesives that could be a boon in fields as diverse as dentistry, neurological surgery and the development of artificial arms and limbs.
2011-03-21
EAST NEWS
Science Source
National Science Foundation
bj4617
0,7MB
12cm x 18cm by 300dpi
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