楼主:导医知识 时间:2019年09月17日 10:27:19 点击:0 回复:0
The B iPlayer enables viewers to watch their favourite shows on their computersOne of the founding fathers of the internet has predicted the end of traditional television.Vint Cerf, who helped to build the internet while working as a researcher in America, said that television was approaching its "iPod moment"In the same way that people now download their favourite music onto their iPod, he said that viewers would soon be downloading most of favourite programmes onto their computers."85 per cent of all we watch is pre-recorded, so you can set your system to download it all the time," said Mr Cerf, who is now the vice-president of the Google, the world's largest search engine."You're still going to need live television for certain things - like news, sporting events and emergencies - but increasingly it is going to be almost like the iPod, where you download content to look at later."Although television on demand has not yet become a mainstream activity in the UK, the B, ITV and Channel 4 have all invested vast sums of money in technology which enables viewers to watch their favourite shows on their computers.But some critics, including some internet service providers, have warned that the internet will collapse under the strain of millions of people downloading programmes at the same time.Over the next four years, it is thought that the number of s watched over the internet will quadruple, with people moving from short clips to hour-long programmes.Broadband companies claim that the service will cause "traffic jams", which will cost millions of pounds to sort out .But Mr Cerf dismissed the warnings as "scare tactics", saying that critics had predicted 20 years ago that the net would collapse when people all around the world started to use it en masse."In the intervening 30 years it's increased a million times... We're far from exhausting the capacity," he said. "It's an understandable worry when they see huge amounts of information being moved around online."Setting out his vision for the future of the internet, he said he wanted it to reach as many people as possible."I want more internet," he said. "I want every one of the six billion people on the planet to be able to connect to the internet." 一位“互联网之父”日前预言:传统的电视时代将结束。温特#8226;瑟夫曾是美国一名研究人员,曾参与过互联网的创建。他说,电视正走向iPod时代。他说,与现在人们将喜欢的音乐下载到iPod里一样,电视观众们很快就能将他们喜欢的大多数电视节目下载到电脑中去了。现任全球最大的搜索引擎公司Google副总裁的瑟夫先生说:“我们观看的85%的视频都是预先录制的,所以可以随时下载。”“尽管人们仍需要新闻、体育比赛和紧急事件等的现场直播,但‘iPod模式’将日益兴起,人们可以把节目下载到里面供以后观看。”尽管电视在线点播在英国仍未成为一种主流模式,但B、ITV和Channel 4已投入大量资金研发能让观众在电脑上看他们喜爱的电视节目的技术。但包括一些互联网务提供商在内的一些批评人士警告说,如果几百万人在同一时间下载节目,互联网会因无法承受压力而崩溃。据预测,在未来四年中,互联网上的视频数量将翻两番,人们所能观看的视频也将从现在的短片“升级”为长达一小时的节目。宽带公司称,这一务会导致“网络交通堵塞”,而“疏通”成本则会达到几百万英镑。瑟夫对这一“恐吓战术”的说法进行了反驳,他说,批评人士20年前预测,如果全世界的人同时上网,互联网会崩溃。他说:“在过去三十年中,互联网的容量增加了一百万倍,我们远没用尽这些容量。看到大量的信息游荡于互联网而产生这样的担忧是可以理解的。”瑟夫先生对互联网的未来进行了展望,他说他希望更多的人能用上互联网。他说:“我希望互联网越来越发达。希望地球上60亿人都能用上互联网。” /200808/45865In older people with mild cognitive impairment, having a drink now and then -- up to an average of one drink of alcohol each day -- may delay progression to dementia , new research suggests.In older people with mild cognitive impairment, having a drink now and then -- up to an average of one drink of alcohol each day -- may delay progression to dementia , new research suggests. "While many studies have assessed alcohol consumption and cognitive function in the elderly, this is the first study to look at how alcohol consumption affects the rate of progression of mild cognitive impairment to dementia," study authors Dr. Vincenzo Solfrizzi and Dr. Francesco Panza, from the University of Bari in Italy, said in a statement. In the study, reported in the medical journal Neurology, the researchers assessed the occurrence of mild cognitive impairment in 1445 subjects and the progression to dementia in 121 patients with mild cognitive impairment. The participants were between 65 and 84 years of age at the start of the study, and they were followed for 3.5 years. Alcohol use was assessed before the survey. Drinking was not associated the development of mild cognitive impairment, according to the report. However, once mild impairment occurred, subjects who had up to one drink per day of alcohol had an 85 percent reduced risk of dementia compared with those who abstained. The benefit was seen with both alcohol in general and with wine in particular. Having more than one drink a day, however, offered no protection against dementia compared with abstaining, the report indicates. "The mechanism responsible for why low alcohol consumption appears to protect against the progression to dementia isn't known. However, it is possible that the arrangement of blood vessels in the brain may play a role," Solfrizzi and Panza conclude.有轻度认知损害的老年人可以喝点酒,一项最新研究发现,每天喝点酒可以延缓病情向痴呆症的发展。 研究报告撰写者、意大利巴里大学的温森佐·索尔弗里兹士和弗朗西斯科·潘萨士在一份声明中说:“此前有很多研究对老年人饮酒与认知功能间的关系进行过探讨,而此项研究则首次对饮酒会如何影响轻度认知损害向痴呆症的发展速度进行了探究。” 此项研究结果在《神经学》医学期刊上发表。研究人员对1445名研究对象中轻度认知损害的发生及121名有轻度认知损害的病人向痴呆症的发展进行了研究。 研究对象的年龄在研究开始之时在65岁至84岁之间,他们被跟踪调查了三年半。研究对象的饮酒情况在调查之前已被确定。 据研究报告显示,轻度认知损害的发生与饮酒无关。但这种情况一旦发生,每天喝一杯酒的研究对象与那些不喝酒的相比,患痴呆症的几率降低了85%。 从总体来看,酒精饮品都可以实现这种功效,其中葡萄酒的功效最强。 报告指出,每天饮酒超过一杯和不喝酒一样,对预防痴呆症起不到作用。 索尔弗里兹和潘萨士总结说:“为何少量饮酒可以预防痴呆症还没有。这可能与脑部血管的分布有关。”Vocabulary: dementia: 痴呆症 alcohol consumption :饮酒 /200809/48441While some 13 million Americans are out of work these days , those still with jobs might have a strange new thing to worry about--getting a promotion can be bad for you, a new study suggests. British researchers found that when people get promoted, they suffer on average about 10 percent more mental strain and are less likely to find the time to go to the doctor. "Getting a promotion at work is not as great as many people think. Our research finds that the mental health of managers typically deteriorates after a job promotion , and in a way that goes beyond merely a short-term change," said Chris Boyce of the University of Warwick. "There are no indications of any health improvements for promoted people other than reduced attendance at GP surgeries , which may itself be something to worry about rather than celebrate." Other research has found stress can be deadly, raising the risk of everything from the common cold to cancer. Other recent revelations about stress: * Stress makes us forget things. * Happily married women suffer less stress. * Job stress in particular has been shown to fuel disease. Those who were promoted reported on average a 20 percent fall in their visits to a doctor following their promotion. The researchers figure this owed to the stress of the new job and the sudden lack of time. The research, using data from an annual survey of Brits, included information about about 1,000 people who had been promoted. The findings will be presented later this month at a conference of the Royal Economic Society. /200904/67888

Want to build positive relationships? Then make sure not to commit the following 10 things that disrupt relationships: 你想建立积极的人际关系吗?那么确保不要做一下十件会毁灭关系的事情。1. Giving hurtful comments. Are you hurting others by your lack of tact? You might think that you're being helpful, but your intentions might have hurt the other party instead. Put yourself in others'shoes first. If it's not a comment you appreciate hearing yourself, then perhaps it's not something others will appreciate either.1. 给伤害性的。你曾经因为缺乏机智而伤害过他人吗?你可能觉得你是在帮别人,但是你可能伤害别人。首先,替别人想想。如果你不愿意听到那个,那么对于别人而言,可能也不愿意。2. Giving solutions when the person is really looking for a listening ear. Probably an understatement: A lot of times what people want is a listening ear. Deep down, people have solutions to the problems they are facing – they are just looking for someone to share their frustrations with because they have had a long and hard day. I had a friend who would always butt in with suggestions whenever I shared my frustrations. Our conversations became stifling – in the end I stopped talking about them altogether because I wasn't getting the refuge I wanted. Be more conscious of what the other party is looking for, and adjust accordingly to fit that.2. 给予解决的方法,当别人只是需要一个倾听的对象。可能只是一个保守的结论:很多时候人们只是需要倾诉。实际上,人们对于他们所面对的问题,已经有了解决的方法,他们只是在寻找能与他们分享心事的人,因为他们日子不好过。我有一个好朋友,经常插嘴提建议,当我只是想分享我的沮丧时。我们的对话变得非常沉闷——到最后我停止了诉说,因为我没有寻找到我的避难所。我们应该更加谨慎地去意识到对方需要什么,然后调整自己去适应。3. Being judgmental; Thinking you are above others. No one likes to be judged or labeled. If you are constantly judging others for what they do/say, it might be good to reflect that upon yourself. Putting someone off doesn't make someone a better person; it just makes him/her appear insecure. Humility is a timeless virtue that's appreciated by everyone.3. 具有批判精神,觉得自己高高在上。没有人喜欢被批判或者被贴上标签。如果你不停地他人的言行,那么你所评价的内容正好反映了你自己。并不能将别人变成更好的人。这会让别人没有安全感。谦卑是每个人都欣赏的永恒的美德。4. Being defensive to criticism. How well do you respond to criticism? Do you become defensive and wall yourself up? Or do you graciously take it into stride and use the criticism constructively for growth? Learn to deal with critical people — it might be the most important skill you can ever acquire.4. 远离批评。你是如何看待他人的批评呢?你是对批评敬而远之,置之不理?还是充满感激地倾听,在批评中积极地成长呢?学习与批评你的人相处——这恐怕是你将获得的最重要的技巧。5. Telling people what to do. Most of us don't like it when people try to boss us around. Learning to energize people and get them on board a common vision is more empowering than trying to order people around.5. 告诉别人做什么。很多人都不喜欢被别人呼来喝去。学会激励别人,同等地看待别人比对别人呼来喝去更有用。 /201110/156200

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