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许昌哪家医院可以治愈淋病挂号活动许昌县男科大夫

2017年10月24日 17:11:05来源:医护晚报

So you want to attract a mate. 那你是想吸引配偶喽!After all, passing on your genes is what evolution is all about. 毕竟基因传递才是进化的意义!To do that you need offspring, and to get a lot of those you need to be attractive. 要传递基因就得有后代,要有后代你就必须得有足够的吸引力,The flashier the better. 而且越光鲜就越好。Hey, look over here! 嘿!看这儿!Sexy me. Ah, but theres the problem. 看看性感的我。嗯,但有个问题。The flashier you are, the more likely you are to attract predators. 你越光鲜闪亮,被捕食者发现的可能性就越大。Hey, look over there-that guy really stands out. 嘿!看那儿—那家伙真显眼。Ill eat him. 我就吃它啦!This is a pickle. 这就让人为难了How can you be flashy in the eyes of mates but subdued in the eyes of predators? 怎样才能在异性眼中光鲜闪亮,又在天敌面前得以藏身呢?New studies show that swordtail fish have evolved a clever solution: use ultraviolet light. 新的研究表明剑尾鱼已经在进化中找到了两全之策,那便是使用紫外线。These innocuous little critters actually shine brightly in stripes that run along their flanks…but only if you look in the UV wavelength.这些不起眼的小家伙事实上可以沿着两侧的鱼鳍发出条纹状的亮光—但是只能在波长与紫外线的波长相等时才能看见这种光。201503/364850。

  • Time to break out the long pants: tick season is back!The past couple of years weve had a tick boom along the west side of the state and its happening again this year.Rich Keith spends a lot of time with ticks. Hes the director of the Kalamazoo Valley Bird Observatory. He and his wife Brenda have been doing tick surveys every year since 1997 for university researchers in Michigan and elsewhere.;In 2003-2007, it was documented that a new expansion of the blacklegged tick came up from northern Indiana all the way to Sleeping Bear Dunes,; says Keith.Symptoms of Lyme diseaseFoster says the primary symptoms of Lyme disease include a febrile illness.;So this would be fever, headaches, malaise, swollen lymph nodes. It might also include joint pain and swelling and muscle pain,; he explains.But he says the most obvious symptom associated with Lyme disease is the ;erythema migrans; or ;bullseye rash.; This non-itchy, reddish rash expands out from the site of where the tick bites after a few days. According to the CDC, it occurs in 70-80% of people infected with Lyme disease.Foster says if you have an onset of these types of symptoms in the summer months and you know youve been to an area where these ticks occur, go see a health care provider. Early treatment for Lyme disease is essential in making sure that you go through a full recovery.How concerned should you be about tick bites?Lyme disease is a bacterial infection and not every tick is infected.;Really it is only the blacklegged tick in Michigan that transmits Lyme disease and theres only a certain percentage of these ticks that are even infected with the bacteria,; said Foster.He says studies in Michigan show about 15-25% of blacklegged ticks in the nymph stage and 40-45% of adult blacklegged ticks are infected.The number one way to reduce ones risk of contracting the illness is to avoid tick bites. Foster recommends wearing EPA-approved insect repellents that contain DEET, picaridin or oil of lemon eucalyptus.When in the woods or other tick-prone areas, wear long pants and tuck those pants into your socks to reduce the risk of ticks crawling up your pant leg.Foster also recommends hiking in the center of trails to avoid brushing up against plants on the edges where ticks like to hang out.;Secondly, doing a tick check on your family members and taking a shower soon after coming indoors will help to wash off ticks that may have not bitten you yet,; he says.He says if a tick is attached to your body for less than 24 hours, your chance of getting Lyme disease is very small.But Foster warns that this time of year, you need to really look carefully when youre doing a tick check.;The blacklegged tick stage that is out there – in the wild – thats coming up right now is called the nymphal-stage tick and it is very, very small, about the size of a poppy seed,; says Foster. ;So a lot of times people dont see these when theyre climbing on their bodies and you dont feel them bite you.;He recommends checking all over your body for ticks, paying special attention to certain areas of your body where ticks commonly bite: behind the knee, the waistline, groin, armpits, behind the ears, around the neck and in the hairline.Pets can be carriers of infected ticksKim Signs with MDCH says you can do a tick check on your dog or cat. Ticks especially like to hang out around the ears and in between the toes.She recommends talking with your vet about ways to keep ticks off your pet in the first place.Signs says that dogs are susceptible to Lyme disease but theres a vaccine for them. She says it can be hard to tell if your dog has the illness, but it can cause fever and swollen joints. So, if you notice changes in your dogs behavior, she says its a good idea to take it to the vet.The state of Michigans Emerging Disease site has updated its brochure, Ticks and Your Health, in an effort to inform residents about the dangers of tick bites.You can also check out the CDCs tick site for more info.201505/377142。
  • Johnson约翰逊Noam Chomsky诺姆·乔姆斯基The theories of the worlds best-known linguist have become rather weird世界最知名语言学家提出了更诡异的理论FEW disciplines are so strongly associated with a single figure: Einstein in physics and Freud in psychology, perhaps. But Noam Chomsky is the man who revolutionised linguistics. Since he wrote “Syntactic Structures” in 1957, Mr Chomsky has argued that human language is fundamentally different from any other kind of communication, that a “linguist from Mars” would agree that all human languages are variations on a single language, and that childrens incredibly quick and successful learning (despite often messy and inattentive parental input) points to an innate language faculty in the brain. These ideas are now widely accepted.很少有学术领域能如此紧密地与某个人挂钩:就像爱因斯坦之于物理学、弗洛伊德之于心理学,而诺姆·乔姆斯基则彻底改革了语言学。自从其著作《句法结构》于1957年问世以来,乔姆斯基一直认为人类的语言与其他任何交流方式有着本质的不同。“来自火星的语言学家”可能会同意所有的人类语言最初都是由单一语言变种而来,而儿童之所以能够快速地学会一门语言(尽管有时候家长会无意教些乱七八糟的东西)则都归功于大脑中天生的语言机制。这种观念已经被广泛接受了。 Over the past 60 years, Mr Chomsky has repeatedly stripped down his theory. Some aspects of human language are shared with animals, and others are part of more general human thinking. He has focused ever more narrowly on the features of language that he reckons are unique to humans. All this has led to a remarkable little book, published late last year with Robert Berwick, a computer scientist. “Why Only Us” purports to explain the evolution of human language.在过去的60年中,乔姆斯基不断地在精简自己的理论。人类语言的某些方面与动物类似,而其余的则来源于人类的思考。他一直专注于研究人类语言中独一无二的特性,并于去年与计算机科学家罗伯特·贝里克合著了一本名为《为什么我们是唯一的》的书,书中解释了人类语言的进化历程。Other biologists, linguists and psychologists have probed the same question and have reached little consensus. But there is even less consensus around the worlds most eminent linguists idea: that a single genetic mutation created an ability called “Merge”, in a single human whom Mr Chomsky has called “Prometheus”, some time before the human exodus from Africa. That mutation was so advantageous that it survived and thrived, producing todays 7,000 languages from Albanian to Zulu. But the vast differences among the worlds languages, Mr Chomsky argues, are mere differences in “externalisation”. The key is Merge.虽然其他各路生物学家、语言学家和心理学家也一直在探寻这个问题,却并没有达成多少共识。然而对于语言学中最著名的理论则分歧更大—在一个乔姆斯基称之为“普罗米修斯”的人中,一次单一的基因突变创造了“合并”的能力,而当时人类还没有迁徙出非洲。该突变如此强大,在之后的岁月中存活并繁衍,创造出如今从阿尔巴尼亚语到祖鲁语的7000种人类语言。而世界各种语言中存在的广泛差异,乔姆斯基认为这只不过是外在的区别,核心仍然是“合并”。But what is it? Merge simply says that two mental objects can be merged into a bigger one, and mental operations can be performed on that as if it were a single one. The can be merged with cat to give a noun phrase, which other grammar rules can operate on as if it were a bare noun like water. So can the and hat. Once there, you can further merge, making the cat in the hat.但“合并”到底是什么?是两个精神客体互相融合成一个更大的,如果这是一个单一个体,就能产生各类心理活动。”The”与”cat”合并就能组成一个名词短语,如果只有一个名词(例如”water”)从语法规则上来说也是可以的。”The”与”hat”的组合也同理。之后,你可以进一步合并更多的词”the cat in the hat”。 译文属译生译世 /201604/435017。
  • Flint is going back to Detroit water. The state, the city and the Charles Stewart Mott Foundation together are kicking in million to shut off the tap to the Flint River.A year and a half ago, city leaders stood in Flints water plant and raised plastic glasses to toast the citys switch to the Flint River.Eighteen months later, Governor Snyder has announced the end of the Flint River experiment.;Im in full support of a return to the Great Lakes Water Authority (formerly the DWSD),; Snyder told a mid-morning news conference in Flint, ;and that we do this in a prompt and efficient fashion.;It may only take a few weeks to bring to an end what has become a failed experiment.Since shutting off the pipeline from Detroit and tapping the Flint River for the citys drinking water, Flint residents have endured a progressively nightmarish existence every time they filled a glass from their kitchen faucet.The cloudy water smelled and tasted bad. Then there were E. coli outbreaks. The heavy chlorination in response to those outbreaks left people with burned skin and hair falling out in clumps.A disinfectant by-product landed the city in violation of the Safe Drinking Water Act for a year.And then theres lead.A Virginia Tech research team found serious levels of lead in the tap water in a significant percentage of Flint homes. Other tests showed blood lead levels in Flint children have doubled since the switch.New tests of drinking water in 13 Flint schools show 4 schools with seriously high lead levels. At one school, Freeman Elementary on the citys south side, the water tested at more than 100 parts per billion. Thats more than six times the federal action level for lead. ;We are suggesting we have specialized staff go in and really track who has elevated blood levels,; says Nick Lyon, the director of the Department of Health and Human Services, ;You dont know the facts until you know the facts. So were going to test these children.;Pastor Allen Overton has been a leader in the grassroots movement to return Flint to Detroit water. He listened as the governor and other officials talked about the steps being taken to quickly get Detroit water flowing to Flint again. Overton blames Flints mayor and other city leaders for not asking the governor for help sooner.;If they had (brought) it to the governor before now I think he would have moved before now,; says Overton, ;But they were slow about getting it to the governor. So thats why I think it took so long to get to this point.;The head of Flints public works department says it will take about two weeks to re-connect with Detroits system.But that doesnt end Flints water woes.The highly corrosive Flint River water has caused, by some estimates, tens of millions of dollars in damage to older lead and iron pipes in Flint. Lead will continue to leach into the water even after the switch to a less corrosive water source. Then there are the long-term health effects on children who have been drinking water with high levels of lead for more than a year. Flint Mayor Dayne Walling says the city will need help repairing and replacing the citys aging and decaying water infrastructure.He suggests other cities should pay attention to whats been happening in Flint.;There are important lessons from Flints experience,; says Walling, ;We need to take a look at federal and state policy reforms, that include expanding water safety sampling to include our most vulnerable families.;;We need to look at factors of affordability in public health and infrastructure all being assessed together,; Flints mayor adds.The governor says hes asking the Michigan legislature for half the expected 12 million dollar cost of getting Flint hooked back up to Detroit water. Thats until next year, when a new pipeline from Lake Huron is expected to be y. The Mott Foundation is kicking in four million dollars and the city will come up with two million dollars.This experiment that was supposed to save millions of dollars will most certainly will end up costing the city and the state dearly.201510/402871。
  • On Tuesday, during his historic address in Havana, President Obama urged Cuba to expand Internet access across the country, stating that the Internet is “one of the greatest engines of growth in human history.” 周二在哈瓦那历史性的讲话中,奥巴马总统敦促古巴扩大全国各地的互联网接入,称互联网是“人类历史经济增长的最大引擎”。President Obama went on to say, “If you can’t access information online, if you cannot be exposed to different points of view, you will not reach your full potential and over time the youth will lose hope.” 奥巴马总统接着表示:“如果你不能在网上获取信息,如果你不能接触到不同的观点,你将不能充分发挥你的潜力,同时,年轻人将失去希望。”According to the World Bank, only 30 percent of Cubans have internet access at all, and the access they do have often remains strictly censored. 据世界的统计,只有百分之30的古巴人接入因特网,他们的访问经常会被严格审查。Upon landing in Cuba, the President told A News that Google is working to expand internet access to the island nation.登陆古巴后,总统告诉美国广播公司,谷歌正在努力扩大互联网接入这个岛国。译文属。201603/433002。
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