当前位置:黑龙江地方站首页 > 龙江新闻 > 正文

重庆宫颈糜烂治疗办法知道卫生重庆做人流多钱

2017年12月17日 08:34:12    日报  参与评论()人

重庆那所妇科医院好重庆爱德华医院治疗痔疮多少钱Fans of classic movies will remember the famous dueling banjos scene in Deliverance, the story of four city friends who take an ill-fated boating trip down a backwoods Georgia river. As the friends set out, one of the friends challenges a local boy with a banjo to see who can play faster. At the end of the song, the camera zooms in to reveal the boy’s diseased, inbred features.经典影片《激流四勇士》的粉丝可能还记得出名的五弦琴决斗场面吧!《激流四勇士》讲述的是四个都市朋友乘着独木舟沿着未开垦的乔治亚河冒险,一路上状况不断。在旅程之初,一个朋友挑战一个当地男孩,比赛谁弹五弦琴更快。曲终,镜头推向男孩,揭示男孩因近亲交配,身体不健全的事实。Such images have contributed to the taboo against marriage between first cousins. Geneticists explain that since closely related persons are more likely to harbor identical genetic mutations, their children have a greater chance of being born with defects.表亲结婚这样的禁忌导致了这样的后果。遗传学者解释近亲更可能携带相同基因突变信息,他们的孩子先天缺陷的风险更大。But such risks might be overstated. According to one study, children from first cousin marriages are only 1.7 to 2.8 percent more likely to be born with serious birth defects than children of conventional marriages. Although the risk is still significant, it is lower than previously thought.但是,这一风险似乎被夸大了。据一项研究显示,表亲婚后的孩子比非近亲婚后孩子先天有严重缺陷的几率仅高出1.7%至2.8%。尽管风险依然存在,但是没之前预想的严重。Prolonged interbreeding in any species can eventually lead to serious birth defects. Harmful genetic mutations are less likely to appear in large populations where individuals reproduce with random partners due to the wider variety of genetic mutations. But in small, isolated populations where inbreeding is common, there’s a greater chance that related partners carry the same mutations.长期来看,任何物种间的异血缘繁殖终会导致严重的先天缺陷。人口多的地方,个体间随机繁衍,恶性基因突变几率降低很多。反之,在人口小且封闭的地方,近亲交配很普遍,有血缘的夫妻携带相同基因突变的几率更大。However, harmful effects are more common in groups with a history of interbreeding over several generations. First cousins that are not from such groups run only a slightly greater risk of producing children with birth defects than non-related couples. Although such risks should not be ignored, first cousin marriage is not necessarily a recipe for genetic disaster.但是,恶性先天缺陷常见于家族多代异血缘交配。表亲生的孩子患先天缺陷的风险略高于无血缘夫妻生的孩子。虽然这样的风险不容忽视,但是表亲结婚并非注定基因灾难。 /201304/233147重医附一院无痛人流好吗 重庆做无痛人流医院哪家最好

重庆市第一人民医院婚前检查酉阳土家族苗族自治县流产手术哪家医院最好的 Why do Stradivarius violins sound so good?为什么史特拉第瓦里小提琴声音那么美妙?A: What did I tell you?我告诉过你什么来着?B: Youre right Yaoyao.This is a beautiful piece.瑶瑶,你说的很对,这是一首美妙的曲子。A: It should be.它本该如此。B: Whats so special about Stradivarius violins?那瓦里小提琴有什么特别的呢?A: Thats something that musicians and scientists have been trying to figure out for centuries. Scientists at the University of Tennessee and Columbia University think that the violins unique sound has to do with climate change.那就是音乐家和科学家们几世纪以来一直试图寻觅的东西。田纳西大学和哥伦比亚大学的科学家们觉得该小提琴的独特声音与气候变化有关。Between 1645 and 1715 Western Europe experienced whats known as the ;Maunder Minimum,; a period of unusually cold weather due to the suns reduced activity during the time. Temperatures may have dropped by two degrees Celsius, which was enough to make trees grow more slowly. Slower tree growth produces stronger, denser wood.在1645年至1715年期间,西欧历经了一个名为“蒙德极小期”的时期。在这期间,因为太阳活动减弱,天气异常的冷。气温降了2℃,这足以让树木生长的更加缓慢,产出更坚硬,密度更大的木头。B: Let me guess. The scientists think that a violin maker like Stradivarius used wood from these slowly growing, denser trees to make violins.让我来猜猜。科学家应该觉得像制造“史特拉第瓦里”这样的小提琴制造者就用了来自这些生长缓慢、且木质密度高的树的木头吧!A: Right! If the scientists are correct, the special quality of the wood is one factor that allows a Stradivarius violin to produce such brilliant tones.是的!如果科学家(的想法)是对的,那种有特殊品质的木头就是让瓦里小提琴可以发出如此绝妙声音的原因之一。B: Is it possible for todays violin makers to use techonology to make violins that sound just as good as Stradivarius?那现在的小提琴生产者还可能用什么技术来让小提琴的声音像“史特拉第瓦里”吗?A: Maybe.In fact, nearly all Stradivarius violins have been modified over the centuries so that they dont sound much like they did originally. If Stradivarius were alive today, he might not even recognize the sound.或许吧!事实上,几乎所有的瓦里小提琴都已经在这几世纪发生改变了,以至于它们现在的声音并没有像最开始那样好听。如果斯特拉迪瓦里现在还活着的话,他或许都不能听出这个声音了吧! /201210/206352秀山土家族苗族自治县治疗妇科炎症多少钱

重庆哪家做人流手术最好 Don: Nice telescope, Yael, what are you looking at?唐:不错的望远镜,雅艾尔,你在看什么?Yale: Bacteria.雅艾尔:细菌。Don: In space?唐:在太空吗?Yale: Not that far out, Don. Scientists recently collected three brand new species of bacteria from the Stratosphere. When I heard about it, I couldnt believe it. Researchers have been using balloon lifted cryosamplers to collect bacteria and fungi from the stratosphere for years.雅艾尔:没那么远,唐。最近科学家们从平流层收集到三种新的细菌品种。当我听说时,我不太相信。多年来,研究人员一直在利用气球举起低温采样器来收集大气中的细菌和真菌。Don: I didnt think that anything can live that high in the amosphere.唐:我不认为在那么高的大气中会有生命存在。Yale: Neither did I. The stratosphere extends from ten to thirty miles above the surface. Thats above the clouds where temperatures can get as cold as minus 76 degrees Fahrenheit, and theres lots of ultra violet radiation.雅艾尔:我以前也是。平流层位于距地表10英里至30英里的高度。那里在云端之上,温度可低至零下76摄氏度,并且有大量的紫外线辐射。Don: So How do they think bacteria got up there?唐:那他们认为细菌是如何到达那里的?Yale: Some scientists think they ride up on particles ejected from volcanoes. Others think bacteria might be sucked through updrafts caused by a special kind of lightning that travels upwards from cloud tops. Forest fires can also cause thunderstorms that toss immense plumes of smoke into the stratosphere. Bacteria could ride on the soot.雅艾尔:有些科学家认为细菌是由火山喷射出的粒子带上去的。还有人则认为,细菌也许是卷入了一种自云层顶端向上运行的特殊闪电造成的上升气流。森林火灾会引起雷暴,将大量浓烟掷入平流层。细菌可能会驾尘而上。Don: And they are the same kind Of bacteria that live here on the surface?唐:那么它们与生活在地表的细菌是同一种类吗?Yale: Some are known species. They have found rod-shaped Bacillus that are very common here as well as Staphylococcus species related to disease causing bacteria. Others are completely new, including two new Bacillus species. Theres also a third group of bacteria found in clumps that cant be cultured in normal bacterial nutrients. So far, they are a puzzle.雅艾尔:有些种类是一样的。已经找到的有非常普遍的杆状杆菌,还有致病细菌——葡萄球菌。 其他的则是完全未知的,包括两个新的杆菌品种。还有第三种细菌,它们成群生长,不能在平常的细菌培养液中培养。到目前为止它仍是个谜。Don: Thats really out of this world, Yael. But you really are trying to see bacteria with your telescope, are you?唐:那真是不可思议,雅艾尔。但你真的在用望眼镜观察细菌,是吗?Yale: No, Don. They are away too small. Im just out enjoying the stars.雅艾尔:不,唐。它们太远,并且太小。我只是在观赏星星。原文译文属!201302/227680云阳奉节巫山县妇科整形多少钱重庆中医院做复通手术

西南医院输卵管检查多少钱
合川永川区看乳腺检查哪家医院最好的
重庆爱德华治疗痛经多少钱家庭医生面诊
重庆妇产中心
乐视乐园重庆体检去哪里好
重庆市第二人民医院治疗不孕不育好吗
北碚渝北区生孩子那个地方好
重庆哪个医院妇科看得好365新闻重庆爱德华综合医院盆腔炎多少钱
龙马指南重庆三峡中心医院百安分院性激素六项检查多少钱问医大夫
(责任编辑:图王)
 
五大发展理念

龙江会客厅

重庆市妇科医院无痛人流好吗
重庆哪里治疗宫颈炎最好 璧山潼南区流产多少钱龙马在线 [详细]
重庆爱德华综合医院妇科大夫
重庆做人流手术价格 重庆第八医院不孕不育研究基地 [详细]
重庆妇幼保健院取环需要多少钱
重庆妇保医院治疗不孕不育好吗 同城大全重庆第二医院无痛人流要多少钱龙马网 [详细]
重医附一院检查不孕不育费用
健步新闻重庆治疗内分泌失调多少钱 重庆妇科病在线咨询搜医优惠重庆爱德华有泌尿科吗 [详细]