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    For a typical small dwelling having 6 columns, the seismic rehabilitation would cost around ￡200 and could be completed in a few days, rather than cost several thousand pounds and take months with other traditional rehabilitation techniques such as jacketing with steel plates or concrete."Ideally, governments shouldn't wait until a disaster happens, but should be identifying buildings at risk and taking steps to make them strong enough to withstand any future earthquakes," he says. "Because this method causes minimal disruption and is cheap to apply, it's ideal for bringing existing buildings up to standard -- both in the developing world and in earthquake risk areas in Europe as well."Ethanol from corn and other plants could become the sustainable, raw material for a huge variety of products, from plastic packaging to detergents to synthetic rubber, that are currently petroleum-based. This was the conclusion of an article published in the ACS journal Industrial & Engineering Chemistry Research. Yingzhe Yu and colleagues point out that a chemical called ethylene, now produced from petroleum, is one of the most important raw materials for everyday products. Ethylene is used to make hundreds of products, including polyethylene, the world's most widely used plastic. knockoff ray bans polarized
    Scientists have been seeking sustainable alternatives to petroleum for making ethylene, and Yu's team reviewed progress in the field.They found that one particular device has the potential to make a highly pure ethylene product from ethanol with high efficiency and low cost. The device, called a fluidized bed reactor, works by suspending the chemicals needed to make ethylene inside the walls of a chamber. Newly produced ethylene exits through a pipe, while the rest of the material remains to continue production. Yu's team discusses progress toward commercial use of such devices, noting that there would be "great significance" for promoting economic development.A new study concludes that men who experience persistently moderate or high levels of stressful life events over a number of years have a 50 percent higher mortality rate. In general, the researchers found only a few protective factors against these higher levels of stress -- people who self-reported that they had good health tended to live longer and married men also fared better. knockoff ray bans sunglasses Moderate drinkers also lived longer than non-drinkers."Being a teetotaler and a smoker were risk factors for mortality," said Carolyn Aldwin, lead author of the study and a professor of human development and family sciences at Oregon State University. "So perhaps trying to keep your major stress events to a minimum, being married and having a glass of wine every night is the secret to a long life."This is the first study to show a direct link between stress trajectories and mortality in an aging population. Unlike previous studies that were conducted in a relatively short term with smaller sample sizes, this study was modified to document major stressors -- such as death of a spouse or a putting a parent into a retirement home -- that specifically affect middle-aged and older people."Most studies look at typical stress events that are geared at younger people, such as graduation, losing a job, having your first child," Aldwin said. "I modified the stress measure to reflect the kinds of stress that we know impacts us more as we age, and even we were surprised at how strong the correlation between stress trajectories and mortality was. knockoff ray bans wayfarer
    "Aldwin said that previous studies examined stress only at one time point, while this study documented patterns of stress over a number of years.The study, out now in the Journal of Aging Research, used longitudinal data surveying almost 1,000 middle-class and working-class men for an 18-year period, from 1985 to 2003. All the men in the study were picked because they had good health when they first signed up to be part of the Boston VA Normative Aging Study in the 1960s.Those in the low-stress group experienced an average of two or fewer major life events in a year, compared with an average of three for the moderate group and up to six for the high stress group. One of the study's most surprising findings was that the mortality risk was similar for the moderate versus high stress group."It seems there is a threshold and perhaps with anything more than two major life events a year and people just max out," Aldwin said. "We were surprised the effect was not linear and that the moderate group had a similar risk of death to the high-risk group.

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