Large volumes of plastic waste generated aboard ships must be stored onboard, often for prolonged periods until they make port. In the future, a new type of environmentally friendly plastic that degrades in seawater may make it safe and practical to toss plastic waste overboard, freeing up valuable storage space, according to scientists.
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A cardiothoracic surgeon has become the first physician to use a surgical robot during heart surgery to successfully repair a mitral valve. The advanced technique of repair used is called the “American Correction”. The surgeon used a US Government-approved daVinci robot to repair the mitral valve of a 62-year-old man.
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New research suggests that moderate increases in temperature and nitrogen from atmospheric pollution may actually improve forest productivity. Researchers have been monitoring the temperature, moisture and nitrogen deposited by acid rain at four forest sites in the northern US since 1987. They have found that the trees grow faster at higher temperatures and store more carbon with increasing concentrations of nitrogen, providing there is sufficient moisture.
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Nanotechnology is available at a store near you. Valued for its antibacterial and odour-fighting properties, nanoparticle silver is the star attraction in a range of products from socks to bandages to washing machines. But as silver’s benefits propel it to the forefront of consumer nanomaterials, scientists are recommending a closer examination of the unforeseen environmental and health consequences of nanosilver.
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Biologists have now created baker’s yeast capable of living to the age of 800 in yeast years without apparent side effects. The basic but important discovery, achieved through a combination of dietary and genetic changes, brings science closer to controlling the survival and health of the unit of all living systems: the cell. “We’re setting the foundation for reprogramming healthy life,” said one scientist.
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