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广东省中西医结合医院男科挂号佛山新世纪男科医院不孕不育科佛山市顺德区妇幼保健医院地址 Mining采矿业Geology or geography?地质还是地理理论?Miners should sp their risks across countries as well as minerals矿业公司应用多国开采和多矿产开发以分散风险THE past half-dozen years have been kind to miners.过去的六年间,采矿企业的发展是顺风顺水。China is gobbling up minerals as fast as they can dig them up.中国消耗矿产的速度就跟采矿企业挖矿的速度一样快。Commodity prices have surged, dipping only temporarily after the financial crisis of 2008. The doldrums of the 1990s are a distant memory.矿产品价格除了在2008年经济危机爆发后短暂下挫外,一直在上涨。上世纪九十年代的矿产业低潮已成了遥远的回忆。Well, almost. The share prices of big mining firms have wobbled in recent weeks, as jitters about the global economy have intensified.情形大抵如此。但最近几周,大型采矿公司的股价如同当下加剧动荡的全球经济一样,忽高忽低。But profits are ballooning. On August 24th BHP Billiton, the worlds largest miner, unveiled record annual profits of .6 billion.但采矿企业的利润都在增长。8月24日,全球最大的采矿企业,必和必拓公布其年盈利额为236亿美元。Not long ago Rio Tinto, another Anglo-Australian giant, reported record profits for the first half of the year.不久前,另一家英澳联合采矿企业力拓公司也公布了本年度上半年的利润报告。The other big global miners—Vale, Xstrata and Anglo American—are raking in mammoth sums too.Vale, Xstrata 和Anglo American,这三大全球采矿业巨头也捞到了大笔利润。Investors should be celebrating.投资者应该为此庆祝一番。But Rio missed analystsforecasts and investors were quick to question the companys strategy.但力拓的实际利润额与分析师给出的预测数字存有差异,投资者反应迅速,马上对力拓公司的战略提出了疑问。Their main concern is that Rio earned nearly 80% of its profits from a single commodity: iron ore.他们主要忧虑在于公司利润中大约80%都来自于单一一项矿产品:铁矿石。That makes it vulnerable to price swings, and it is not alone.一旦价格出现波动,公司就会直接受其影响,处于不利位置。而且把铁矿石作为主要产品的采矿企业不止一家。Vale, a Brazilian miner, gets a hefty 60% of its revenues from iron ore.巴西采矿企业Vale高达60%的收入都来自铁矿石。And last year it sold most of its aluminium business, thus putting all its eggs in an iron basket.去年,这家企业售出旗下大部分铝业务。跟着就把赌注都放在了铁矿石这个篮子里。There are two theories as to how miners should sp their risks.关于采矿企业如何规避风险,存有两种理论。One is that they should diversify by geology.一是依托地质学原理,采用多种矿物开采。That is, they should dig up lots of different minerals, just in case the price of one of them collapses.既:为应对某一矿物质价格下滑的局面而采取多样性开发。That was the thinking behind the mega-merger that created BHP Billiton in 2001.正是这种主导思想促成了2001年必和必拓公司并购。It also explains why Xstrata and Anglo American operate so many different kinds of mines.这也同样能解释为何Xstrata和Anglo American公司选用多种矿物质开采。A rival theory holds that miners should worry more about geographical diversity than the geological sort.与之大相径庭的另一理论是矿产企业应更多地注意到地理带来多样性而不是地质类别。Some analysts believe that because Chinas appetite for minerals is growing so fast—it aly consumes around two-fifths of the worlds output of industrial metals—prices can only go up.中国对工业用金属的消耗已经占其全球产量的约五分之二。因此,一些分析家认为中国对矿产需求的增长之快,导致矿产价格只会继续上扬。They talk of a “supercycle” of 20-25 years of high demand.他们提出所谓“超旋回”理论,即:一种持续时间长达二十到二十五年的高需求。The big threat now is not that prices will fall but that governments will seek to grab a greater share of minersprofits, predicts Grant Thornton, a consultancy.正大联合会计师事务所认为,当下采矿业所面临的最大威胁不是矿业产品价格下降,而是多国政府都设法能在采矿企业所得的利润中分得一杯羹。So miners should sp their political risk by digging in multiple countries.所以多家采矿企业采取多国开采的方法规避政治风险。BHP is doing well by following the first theory. It wants to become a large supplier of potash, a base for fertilisers, and recently spent .1 billion on Petrohawk, an American shale-gas firm, to add to an energy business that aly accounts for a fifth of its profits.必和必拓采用第一种理论,公司也因此运转良好。其希望在化肥的基础材料,碳酸钾上成为大型的供应商。此外还在最近花费121亿美元购买美国一家页岩燃气公司Petrohawk。必和必拓能在能源产业上的利润,已占其总利润的五分之一,此举用来增加其在能源商业上的实力。But the second theory is gaining followers.但持第二种理论的企业正在逐渐增多。Several cash-strapped African governments are looking hungrily at minersbulging moneybags.一些财政紧张的非洲政府,眼睛放着蓝光,紧盯着采矿企业鼓鼓的钱袋不放。Tanzanian politicians are mulling a supertax on miners.坦桑尼亚的政客们正考虑对各采矿企业征收附加税。Namibia and Zimbabwe have plans for the “indigenisation” of mining assets—ie, forcing miners to sell or hand them over to locals.纳米比亚和津巴布韦已有计划,要将矿产资源“本土化”:即强迫采矿企业将出售或转让给当地人民。Perus new government pledged to levy a windfall tax, but has since agreed merely to negotiate a better deal for its treasury.秘鲁新上台的政府曾保将对采矿企业征收暴利税,但最近同意,可以与采矿企业谈判,但谈判的前提必须是增加政府财政收入。Trouble can arise in unexpected places: in 2010 Australias government tried to impose a mining supertax.本不认为会出麻烦的地方也出了事故。A campaign by big miners forced a climbdown and cost the prime minister his job, but Australia will now slap a tax on iron ore and coal mining.2010年,澳大利亚政府尝试对采矿企业征收附加税。多家采矿业巨头联合抵制,此事最终不了了之,导致总理引咎辞职。但现在澳大利亚政府还是会出手抬高铁矿石和煤矿产业的税收。Anglo American illustrates the dangers of geographical concentration.Anglo American公司给我们诠释了地理集中论的危险。The firm was originally South African, but moved its headquarters to London in 1999.此公司在南非发家,与1999年将公司总部迁往伦敦。It still relies on South African assets for 40% of its profits, however. Whenever a South African politician talks about nationalisation, its shares react as if whacked with a shovel.然而,公司利润的40%仍出自于其在南非的企业。每当一个南非政客跳出来对企业国有化品头论足一番时,该公司的股价就会应声而落。One ruling-party firebrand talks of seizure without compensation.某一执政党的成员还煽风点火,大谈特谈什么占资产,不赔偿。His views will probably not prevail, but Anglo is investing heavily in Latin America and elsewhere, just in case.这种观点可能是个别人的想法,但为防不测,Anglo American公司正在拉丁美洲及其它地区大力投资。Miners have so much cash that they are sure to splurge on further acquisitions.采矿企业手握大笔现金,肯定会在进一步的兼并中投下巨资。To guard against future adversity, they would be wise to seek both kinds of diversity.为防患于未然,对之上提出的两种理论采取兼而有之的策略不失为是明智之举。For political winds are as unpredictable as swings in commodity prices.因为变化莫测的政治局势就像摇摆不定的产品价格一样,无法预测。 点击此处下载本期经济学人讲解PDF与音频字幕 /201303/231502顺德医院收费贵吗

陈村均安杏坛镇泌尿科咨询Cnet.com/live is the place to find your favourite CNet Tech shows. From the hottest gadgets to the latest tech news. We stream it live 5 days a week at Cnet.com/live.Cnet.com的live频道收集了你最喜爱的科技资讯节目。从最火产品到最新资讯,应用仅有。每周5期,就在Cnet.com。Its Wednesday April 6th. Im Nattalie Morris. And its time to get loaded. Dish Network has announced that it would purchase Blockbuster for 228 million dollars. Blockbuster is of course the movie rental company that filed for chapter-11 bankrupcy last fall. The company had to closed thousands of its stores in the last few years after losing market share to Netflix.今天是4月6日,周三。我是Natalie Morris,是时候了解最新的科技资讯了。Dish Network公司宣布将以2亿2800亿美元卖掉百事达分公司。百事达是一家影碟租赁公司,于去年秋天破产。自从网飞公司占有更多市场后,这家公司在过去几年中逐渐关闭了许多门脸。Republicans and House representatives voted to stop the net neutrality regulations from taking effect. House Republicans argued that the FCC never had the authorization to pass these regulations. Meanwhile, the Federal Appeals Court has ruled that it is too early for companies like Verizon and Mental PCS to sue the FCC to overturn these regulations.共和党人和众议员提出废止网络中立规则。共和党人质疑联邦通信委员会是否有权通过这项法规。同时,联邦上诉法院判决威瑞森,Mental PCS等公司起诉联邦通信委员并申请撤销中立网络法规不成立。President Obama will take to facebook to hold a town-hall meeting on April 20th at 4:45 pm EST. The meeting will take place at Facebooks headquaters and will be streamed live on the White House Facebook page. The president will discuss the economy and innovation, you can submit your questions on the event page.4月20日下午4点45,总统奥巴马将在脸谱网召开市政会议。会议在脸谱网的总部召开,并在脸谱网白宫版面直播。总统将会讨论经济和创新话题,用户可以在相关页面提问。Facebook is also vying for the intention of reporters, the company launched the site for journalists to serve as a place to mine for stories or other sources. Of course, there are services that aly do this such as Flacklist or Profnet.脸谱网同时还在和新闻工作者们竞争,脸谱网推出了一个记者小站,专门供用户们上传故事或其他素材。当然,已经有其他网站提供类似务了,例如Flacklist和Profnet。Twitter is considering branded pages like those on Facebook, these will let companies deliver messages to their followers directly like they pretty much aly do, only it will be a bit more official. These promoted accounts could be another way for twitter to monetize their service.Twitter正考虑在脸谱网上放置品牌页面,这样Twitter就可以及时向粉丝们直接传递消息,虽然现在Twitter就有这项功能,但品牌页面会更加正式一些。这可能成为Twitter为其务增值的另一条蹊径。Sprint has a new 3G, 4G Mifi hotspot, selling for just 79 dollors. Thats a lot lower than 100 dollors that a Mifi unit usually costs. It can give you wifi on your mobile devices over Sprints 3G and 4G networks. You do have to sign up for a two-year service agreement with plan starting at 49.99 per month.春季将发售新款3G,4GMifi Hotspot,售价仅为70美元。这比Mifi unit售价优惠100多美元。它将为你的手机设备带来3G或4G无线网络。同时,你必须签一份每月最低花费49.99美元并为期两年的合同。Microsoft is changing the focus of its home energy monitoring program. Microsoft Home is a two-year old web application that lets you monitor your home appliances and energy use. Participation has not been very good, so now the program is going to emphasize management of the Ford-Focus electrical vehicle and other electrical vehicles. So maybe, instead of Microsoft Home they should call it Microsoft Car. In fact, Microsoft and Toyota have some kind of announcement today. A vedio press conference is scheduled for 1 p.m. We think it has something to do with automobile technology. Thats just a guess. Tune in tomorrow for that news.微软将改变其家庭能源监控程序的计划。微软之家是一款投入使用长达两年的网络应用,它帮助你监控家用电器并控制能源消耗。这款应用投入使用的情况并不好,所以这项程序将把重心转向对福特汽车或其他品牌汽车的管理。因此,与其称之为微软之家,不如称之为微软之车。事实上,微软和丰田今天发布消息。下午1点他们将召开视频新闻发布会。我们认为这应该和这款汽车应用有关。但这还只是猜测。明天我们会为您带来详尽的报道。Thats your news for the day, I will see you tomorrow. Im Nattalie Morris for CNet, and youve just being loaded.以上就是今天的科技资讯,我们明天再见。我是Cnet的Nattalie Morris,感谢您的收看。Cnet.com/live is the place to find your favourite CNet tech shows. From the hottest gadgets to the latest tech news. We stream it live 5 days a week at Cnet.com/live.Cnet.com的live频道收集了你最喜爱的科技资讯节目。从最火产品到最新资讯,应用仅有。每周5期,就在Cnet.com。注:本篇文章英文来自普特论坛,译文属原创,,。201211/207687佛山市顺德区妇幼保健医院专家咨询 顺德新世纪医院电话

佛山市那家医院治疗包皮过长好Science and Technology Avian malaria and climate change Bite the birds科技 禽虐与气候变化 鸟类受害Malaria among birds is becoming more prevalent鸟类中的疟疾感染越来越多MOSQUITOES, which carry malaria parasites, like the warm and wet conditions that are expected to become more common with climate change.携带疟原虫的蚊子喜欢温暖潮湿的环境,由于气候变化的影响这种环境可能会越来越普遍。This has led many to reason that malarial infections will increase.因此很多人推论,疟疾感染将会增加。Yet studies run into the unreliability of modelling future climatic effects and sometimes ignore changes in land use and health care.但是很多研究遇到了未来气候效应模型不可靠的问题,而且有时忽视了土地使用和健康保健方面的变化。However, a new analysis of the sp of avian malaria shows that for the birds, at least, there is a real worry.然而,一项新的对禽虐传播的分析显示,至少对于鸟类而言,真正令人担忧的状况已经出现。Laszlo Garamszegi, of the Do?ana Biological Station in Spain, studied patterns of malarial infections in birds to avoid confounding human factors in determining the epidemiology of a closely related parasite.在对一种有密切关系的寄生虫进行流行病学鉴定时,为避免混入人为因素,西班牙多尼亚纳生物站的喇撒?噶母赛棘研究了在鸟类中疟疾感染的模式。He looked at 43 previous studies that had carefully screened 3,000 bird species for malaria in different locations over the past 70 years.他察看了以前的43份研究。这些研究仔细鉴别了过去70年来在不同地区的3000中鸟类感染疟疾的情况。He found that an increase in global temperatures of 1°C was accompanied by a two-to threefold increase in the average prevalence of malaria in birds.他发现,全球气温每增加1°C,鸟类平均疟疾患病率随之增加两到三倍。The most dramatic increases took place during the past 20 years.最急剧地增加是发生在过去的20年间。Dr Garamszegis work, published in Global Change Biology, found that the house sparrow (Passer domesticus) showed a malaria prevalence that was less than 10% before 1990 when worldwide temperatures were cooler, but in recent years nearly 30% were infected.噶母赛棘士的论文发表在《全球变化生物学》杂志上,他发现,家雀(Passer domesticus)的疟疾患病率在1990年以前不到10%,那时全球气候比较凉爽,但是在最近的一些年里几乎30%被感染。The great tit (Parus major) presented a similarly worrying increase, with less than 3% infected with malaria before 1995 but closer to 15% in recent studies.大山雀(Parus major)的患病率有类似令人担忧的增加,1995年之前不到3%,而最近接近15%。The blackcap (Sylvia atricapilla), a migrant bird common in Europe that breeds in gardens, once had virtually no avian malaria but a study in 1999 showed nearly 4% had the disease.黑头莺在欧洲一种常见的候鸟,它们生活在很多公园里,实际上它们曾经并没有禽虐感染,但是1999年的一项研究显示,几乎4%的黑头莺感染了这种疾病。The effects of warming on avian malaria were not universal. Birds in Asia, North America and South America suffered much less change in their levels of infection during warm years than did birds dwelling in Africa and Europe.气候变暖对禽虐的影响并不普遍。亚洲、北美和南美的鸟类,在气候变暖的若干年里,其感染率的变化较小,而生活在非洲和欧洲的鸟类则受影响较大。Such trends may not have any relevance to the malaria parasites that infect humans.这种趋势与感染人类的疟原虫可能没有任何关系。But avian malaria is aly ravaging the native birds of Hawaii and it is now wreaking havoc in New Zealand, says Dr Garamszegi.但是禽虐已经毁掉了夏威夷的本地鸟类,它目前在新西兰正造成着巨大的破坏,噶母赛棘士说。Human beings may be able to mitigate the sp of malaria, but birds will need the help of conservationists if some species are to survive.人类也许已经使疟疾的传播减缓,但是如果某些鸟类要幸存下来,就需要环境保护主义者们的帮助。 /201212/214489 Science and technology.科技。The psychology of morality.道德心理学。Time to be honest.诚实是需要时间的。A simple experiment suggests a way to encourage truthfulness.一个简单的实验却为我们提供了一种鼓励诚实的途径。;IS SIN original?; That is the question addressed by Shaul Shalvi, a psychologist at the University of Amsterdam, in a paper just published in Psychological Science. Dr Shalvi and his colleagues, Ori Eldar and Yoella Bereby-Meyer of Ben-Gurion University in Israel, wanted to know if the impulse to cheat is something that grows or diminishes when the potential cheater has time for reflection on his actions. Is cheating, in other words, instinctive or calculating?;人性本‘恶?;这是由阿姆斯特丹大学的一位心理学家—— Shaul Shalvi,在《心理科学》杂志上发表的一篇论文中所提出的问题. Shalvi士和他的两位同事——以色列Ben-Gurion大学的Ori Eldar 和 Yoella Bereby-Meyer,希望知道如果那些潜在的骗子有时间对他们的行为作出充分考虑,他们撒谎的冲动会否因此增强或减弱呢?换句话说,撒谎究竟是人的一种本能行为,还是经过仔细分析后所作出的选择呢?Appropriately, the researchers apparatus for their experiment was that icon of sinful activity, the gambling die. They wanted to find out whether people were more likely to lie about the result of a die roll when asked that result immediately, or when given time to think.研究人员为他们的实验选择了一样合适的工具—骰子—罪恶活动的标志。他们想查明的是:人们是在摇骰后立即被询问其结果时容易撒谎呢,还是在他们获得一定的思考余地的时候呢?To carry out their experiment, Dr Shalvi, Dr Eldar and Dr Bereby-Meyer gave each of 76 volunteers a six-sided die and a cup. Participants were told that a number of them, chosen at random, would earn ten shekels (about .50) for each pip of the numeral they rolled on the die. They were then instructed to shake their cups, check the outcome of the rolled die and remember this roll. Next, they were asked to roll the die two more times, to satisfy themselves that it was not loaded, and, that done, to enter the result of the first roll on a computer terminal. Half of the participants were told to complete this procedure within 20 seconds while the others were given no time limit.实验前,Shalvi士,Eldar士和Bereby-Meyer士给作为实验对象的76位志愿者每人发了一个摇盅和一粒骰子。参加者被告知他们中的一部分被随机抽选出来的,会依据其掷出的骰子点数而得到相应数目的奖励,每点10谢克尔(约合2.5美元)。接着他们便按照指示摇盅,开盅查看结果,记住点数。然后他们被要求多摇两次,以让自己确信骰子中没有被灌铅。最后,让他们自己在电脑终端里输入第一次所掷出的点数。有一半参加者被要求在20秒内完成整个实验流程,而另一半则没有时间限制。The researchers had no way of knowing what numbers participants actually rolled, of course. But they knew, statistically, that the average roll, if people reported honestly, should have been 3.5. This gave them a baseline from which to calculate participants honesty. Those forced to enter their results within 20 seconds, the researchers found, reported a mean roll of 4.6. Those who were not under any time pressure reported a mean roll of 3.9. Both groups lied, then. But those who had had more time for reflection lied less.研究人员当然无法知晓每个参加者实际掷出点数。但他们知道,依照统计学规律,如果所有人都能做到如实上报点数,那么这次实验的平均掷出点数应为3.5。这就为研究人员提供了一个测量参加者诚实程度的依据。他们发现,那组被要求于20秒内输入结果的的参加者所上报的掷出点数平均值为4.6,而另外没有时间压力的参加者的为3.9.显然这两组人都撒谎了,不过在那些有充分时间进行考虑的参加者中撒谎的较少。A second experiment confirmed this result. A different bunch of volunteers were asked to roll the die just once. Again, half were put under time pressure and, since there were no additional rolls to make, the restriction was changed from 20 seconds to eight. The others were allowed to consider the matter for as long as they wished.第二次实验则验了这一结果。这次是另一群不同的志愿者被要求掷骰子,不过只掷一次。同上次一样,他们中一半人被限制了时间,并且由于此次只需掷一次骰子,时间限制也从20s缩短为8s.其余一般则想考虑多久都行。In this case the first half reported an average roll of 4.4. Those given no time limit reported an average of 3.4. The second lot, in other words, actually told the truth.在这次实验中,前面有时间限制的一半人所上报点数的平均值为4.4,而没有时间限制的所上报的平均值为3.4。换言之,后者如实上报了数据。The conclusion, therefore, at least in the matter of cheating at dice, is that sin is indeed original. Without time for reflection, people will default to the mode labelled ;cheat;. Given such time, however, they will often do the right thing. If you want someone to be honest, then, do not press him too hard for an immediate decision.因此,得出的结论是——至少在此次摇骰作弊的案例中如此—;人性本‘恶;。在缺少时间进行考虑的情况下,人们会进入默认的;撒谎;模式。然而,如果他们获得了那样的考虑时间,一般会作出道德上正确的选择。所以,如果你希望某人对你诚实,那么千万别逼迫他立即做出出决定啊 /201209/199363顺德新世纪医院治疗性功能障碍多少钱佛山新世纪医院精子不液化



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