Archive: 08/27/2007

Cells united against cancer

Sheets of highly organized epithelial cells line all the cavities and free surfaces of the body, forming barriers that control the movement of liquids and cells in the body organs. The organized structure of normal breast ...

dateAug 27, 2007 in Cancer
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The world's oldest bacteria

A research team has for the first time ever discovered DNA from living bacteria that are more than half a million years old. Never before has traces of still living organisms that old been found. The exceptional discovery ...

dateAug 27, 2007 in
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Team creates math model for circadian rhythm

The internal clock in living beings that regulates sleeping and waking patterns -- usually called the circadian clock -- has often befuddled scientists due to its mysterious time delays. Molecular interactions that regulate ...

dateAug 27, 2007 in
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Nanowire coating for bone implants, stents

University of Arkansas researchers have found a simple, inexpensive way to create a nanowire coating on the surface of biocompatible titanium that can be used to create more effective surfaces for hip replacement, dental ...

dateAug 27, 2007 in Nanomaterials
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Scientists identify embryonic stem cells by appearance alone

Some scientific results are hard to spot, especially in genetic research. Often scientists are unable to physically see if the gene they inserted into a cell has produced the desired trait. To overcome this problem researchers ...

dateAug 27, 2007 in
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Hungry insects leave clues to impacts of climate change

A boardwalk beckons into the stand of trees, pleasantly cool on a hot summer morning - where it becomes immediately clear that this is no ordinary forest. Odd metal and plastic contraptions adorn trunks and dangle from branches, ...

dateAug 27, 2007 in
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