When animals and plants are exposed to influences such as bacterial attack, odour and cold, calcium ions flow into the cells. The calcium provides the cells with a signal about what is going on outside, but as high concentrations ...
Biotechnology
Oct 21, 2012
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Pathogenic bacteria bristle with surface proteins that help them to infect their host. From chemical hooks that anchor the bacteria in place to cloaking proteins that hide them from their host's immune system, each protein ...
Biochemistry
Oct 12, 2012
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Reef-building coral communities in the Great Barrier Reef-the world's largest coral reef-may now be calcifying at only about half the rate that they did during the 1970s, although live coral cover may not have changed over ...
Environment
Aug 31, 2012
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A team of investigators from UC Davis and Peking University have discovered a mechanism that may explain how alpha hydroxyl acids (AHAs) -- the key ingredient in cosmetic chemical peels and wrinkle-reducing creams -- work ...
Biochemistry
Aug 13, 2012
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Excitation of neurons depends on the selected influx of certain ions, namely sodium, calcium and potassium through specific channels. Obviously, these channels were crucial for the evolution of nervous systems in animals. ...
Cell & Microbiology
Jul 26, 2012
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(Phys.org) -- A new computer model developed in Switzerland shows that the pH of the ocean waters off the west coast of the US will fall over the next four decades faster than previously thought. The region studied is on ...
Working with researchers in the US and Germany, Johannes Messinger at Umea University (Sweden) is opening new avenues to understand photosynthesis and create artificial photosynthesis. Using x-ray analysis, they have managed ...
Biochemistry
Jun 4, 2012
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(Phys.org) -- Quantum computers may someday revolutionize the information world. But in order for quantum computers at distant locations to communicate with one another, they have to be linked together in a network. While ...
Quantum Physics
May 23, 2012
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The speed at which the calcium concentration in the cell changes controls the swimming behavior of sperm. They can calculate the calcium dynamics and react accordingly.
Plants & Animals
Mar 7, 2012
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Northwestern University Feinberg School of Medicine researchers have identified a new and unusual role for a key player in the human immune system. A protein initially believed to regulate one routine function within the ...
Biochemistry
Jan 28, 2012
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