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2019年07月17日 08:20:36    日报  参与评论()人

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黄岛区中心医院隆胸多少钱摘要: 一项针对社交网站对学业影响的最新调查显示,Facebook的使用者也许在网络社交中颇为成功,但他们在考试中往往表现很差。与从不使用该网站的学生相比,每天使用Facebook的大多数学生成绩要低一个等级。Facebook users may feel socially successful in cyberspace but they are more likely to perform poorly in exams, according to new research into the academic impact of the social networking website.The majority of students who use Facebook every day are underachieving by as much as an entire grade compared with those who shun the site.About 83% of British 16 to 24-year-olds are thought to use social networking sites such as Facebook, MySpace and Bebo, to keep in touch with friends and organize their social lives.“Our study shows people who spend more time on Facebook spend less time studying,” said Aryn Karpinski, a researcher in the education department at Ohio State University. “Every generation has its distractions, but I think Facebook is a unique phenomenon.”Karpinski and a colleague questioned 219 US undergraduates and graduates about their study practices and general internet use, as well as their specific use of Facebook.They found that 65% of Facebook users accessed their account daily, usually checking it several times to see if they had received new messages. The amount of time spent on Facebook at each log-in varied from just a few minutes to more than an hour.The Ohio report shows that students who used Facebook had a “significantly” lower grade point average - the marking system used in US universities - than those who did not use the site.“It is the equivalent of the difference between getting an A and a B,” said Karpinski, who will present her findings this week to the annual meeting of the American Educational Research Association.Some UK students have aly spotted the potential danger. Daisy Jones, 21, an undergraduate in her final year at Loughborough University, realized the time she was spending on Facebook was threatening her grades - prompting her to deactivate her account.“I was in the library trying to write a 2,000-word essay when I realized my Facebook habit had got out of hand,” she said.“I couldn’t resist going online, then someone’s photo catches your eye. Before you know it, a couple of minutes has turned into a couple of hours and you haven’t written a thing.”Jones is among the few to have recognized the risks. According to Karpinski’s research, 79% of Facebook-using students believed the time they spent on the site had no impact on their work.Facebook said: “There is also academic research that shows the benefits of services like Facebook. It’s in the hands of students, in consultation with their parents, to decide how to spend their time.” /200904/67437 Men are spending more and more time in the kitchen encouraged by celebrity chefs like Gordon Ramsay and Jamie Oliver, according to a report from Oxford University.The effect of the celebrity role models, who have given cookery a more macho image, has combined with a more general drive towards sexual equality, to mean men now spend more than twice the amount of time preparing meals than they did in 1961.According to research by Prof Jonatahn Gershuny, who runs the Centre for Time Research at Oxford, men now spend more than half an hour a day cooking, up from just 12 minutes a day in 1961.Prof Gershuny said: "The man in the kitchen is part of a much wider social trend. There has been 40 years of gender equality, but there is another 40 years probably to come."Women, who a generation ago spent a fraction under two hours a day cooking, now spend just one hour and seven minutes – a dramatic fall, but they still spend far more time at the hob than men.Some commentators have dubbed the emergence of men in aprons as "Gastrosexuals", who have been inspired to pick up a spatula by the success of Ramsay, Oliver as well as other male celebrity chefs such as Hugh Fearnley-Whittingstall, Marco Pierre White and Keith Floyd."I was married in 1974. When my father came to visit me a few weeks later I was wearing an apron when I opened the door. He laughed," said Prof Gershuny"That would never happen now."The report, commissioned by frozen food company Birds Eye, also makes clear that the family meal is limping on in far better health than some have suggested, thanks in part to a resurgence in cooking from scratch by some consumers.Two-thirds of adults claim that they come together to share at least three times a week, even if it is not necessarily around a kitchen or dining room table.Anne Murphy, general manager at Birds Eye, said: "The evening meal is still clearly central to family life and with some saying family time is on the increase and the appearance of a more frugal consumer, we think the return to traditionalism will continue as a trend.”However, Prof Gershuny pointed out that the family meal was now rarely eaten by all of its members around a table – with many "family meals" in fact taken on the sofa in the sitting room, and shared by disparate members of the family."The family meal has changed very substantially, and few of us eat – as I did when I was a child – at least two meals a day together as a family. But it has survived in a different format." /200908/82032青岛市头发检测青岛痤疮整形医院

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