Penetrating the riddle of heart attack

Article Abstract:

Heart ailments are considered the nation's largest disease problem. Researchers are continually looking for the causes of heart attack to develop new preventive measures against it. One of their studies reveals that the presence of bacteria and viruses in the blood could cause heart diseases. Another study, on the other hand, consider the possibility of a genetically-acquired heart ailment. Researchers are also looking at the role of psychological aspects in determining the persons who are at risk of heart attacks.

Heart & Cardiovascular R&D, Health aspects, Heart diseases, Heart attack, Cardiovascular research, Psychology

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A tale of comets - in cells

Article Abstract:

Julie A. Theriot worked as a research fellow at the Whitehead Institute for Biomedical Research. With the use of video cameras, she found that two food-borne bacteria, Shigella and Listeria, divide several times upon entering a host cell. They then form 'comet tails' which they use to move to adjacent cells, thus spreading the infection. Theriot is now with the Stanford University doing research on how to stop the formation of comet tails, thus preventing them from moving to other cells.

Medical Research, Bacteria, Foodborne diseases, Bacterial infections

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High-tech help for dirty diesels

Article Abstract:

University of Southern California researchers have developed a device that converts diesel engine exhaust fumes to air, carbon dioxide and water vapor. The device, which will enable diesel engines to meet strict emissions standards, is an exhaust after-treatment system based on a pulsed-power electronic circuit. Its chamber design fits into diesel-exhaust systems where it can react to particulate hydrocarbons and nitrogen oxide.

Colleges & Universities, Colleges, Universities, and Professional Schools, Colleges and universities, Air Pollution Control R&D, Universities and colleges, Environmental aspects, Motor vehicles, Air pollution research, Pollution control research, Diesel motor exhaust gas, Diesel emissions, Automotive pollution control equipment, University of Southern California

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