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佛山市新世纪医院前列腺炎多少钱佛山市高明区人民医院治疗龟头炎多少钱佛山男科医院 佛山哪家医院治疗打呼噜好

顺德区中医院地址在哪Science and Technolgy科技What dinosaurs ate恐龙吃什么The belly of the beast腹中发现A chance discovery from China suggests some dinosaurs lived in trees在中国的一次偶然发现暗示着有些恐龙在树上生活WHAT dinosaurs ate is, of course, a question as interesting and illuminating as what ate dinosaurs (see article).恐龙吃什么?当然,这个问题与“什么吃恐龙?”一样有趣,一样具有启发性。In the case of one particular dinosaur,Microraptor, the matter was addressed in a presentation to the annual meeting of the Society of Vertebrate Palaeontology by Jingmai OConnor of the Institute of Vertebrate Palaeontology and Palaeoanthropology, in Beijing.但就“小盗龙吃什么”这一问题(见文章),北京中国科学院古脊椎动物和古人类研究所的Jingmai OConnor在古脊椎动物学会年会上发表了演说。Microraptor (see photograph) is one of many small, feathered dinosaurs found in what is now China that were alive during the Cretaceous period more than 66m years ago.小盗龙(见图),生活在距今六千六百多万年前的白垩纪,是现今中国境内发现的众多体型娇小、长有羽毛的恐龙之一。Being feathered, it and its kind were cousins to birds.这一种恐龙身着羽毛,是鸟类的近亲。The actual split between the two groups, though, had happened much earlier, during the Jurassic period (the first known bird is Archaeopteryx, from 150m years ago), and by the late Cretaceous there were many species of bird around.尽管,这两种物种早在侏罗纪时期(已知的最早鸟类是始祖鸟,生活在一亿五千万年前)就已分道扬镳,而且,到了白垩纪后期,已出现了许多种的鸟类。What Dr OConnor and her colleagues have found is the remains of one of those birds, of an as-yet-unidentified species, in the stomach of a specimen of Microraptor.OConnor士和她同事在小盗龙样本的胃中发现了那时期鸟类的残骸,但其种类还未得到鉴别。That is interesting. Discovering direct evidence of what a fossil animal ate, rather than having to infer it from details such as the shape of its teeth, is always valuable.比起根据其牙齿形状等细节来推测出结果,找出古生物吃什么的直接据是有价值的。But the finds true significance is a small detail of the preys anatomy: the third toe of its foot.但是,这个发现真正重要之处却是其骨骼的一个细微之处:它脚掌的第三个脚趾。那是非常有趣的。The size of the preys third toe is important because, among birds, long third toes are helpful for grasping branches and perching in trees.捕食者第三个脚趾的大小是很重要的,因为,对于鸟来说,长长的第三趾可以帮助其抓紧树枝,在树上栖息。Indeed, the trait is so useful for arboreal life that it is used by many avian palaeontologists to decide whether newly excavated species of fossil birds lived in trees or on the ground.的确,对于树栖生物这一特点是相当有用的,而许多鸟类古生物学家也利用这一特点来确定新挖掘出的鸟类化石是栖息在树上还是生活在地面上。And the last meal of this particular specimen of Microraptor did, indeed, have a long third toe.而小盗龙的最后一餐显然长有长长的第三个脚趾。That elongated toe suggests to Dr OConnor that Microraptor, too, was arboreal, and hints that its feathers may have helped it to move through an environment where hops, jumps and flaps between branches were a regular part of its daily activity.那细长的脚趾暗示着OConnor士小盗龙也是树栖的。在一个需在枝桠间跳跃、滑行的生活环境中,它的羽毛可能对它的日常活动有所帮助。Whether the first birds evolved from arboreal or terrestrial ancestors is a matter of lively debate among palaeontologists.关于第一只鸟是从树栖还是陆生的祖先进化而来,一直是古生物学家激烈争论的话题。A fossil formed so long after birds emerged does not, in truth, shed much light on that debate.事实上,一个在鸟类出现很久之后形成的化石并没有使得这一论战明朗化。But it does suggest feathers may have helped promote life in the trees, even for creatures that could not actually fly.但是,这的确说明对于居于树上、即使是那些根本不能飞的树栖生物来说,羽毛可能真的有助于它们的生活。 /201210/206469佛山市顺德区人民医院网上咨询 Michael Jordans legacy is authenticity. If you removed all the hype, all the marketing, all the show-time glitz, he would be as 100% genuine as anybody whoever played in a gym or an armory anywhere anytime.迈克尔;乔丹的遗产是其真实性。如果你拿掉所有的炒作,所有的市场,所有的秀场浮华,他就会还原成100%的真实,就像在健身馆或军械库曾经乐此不疲的任何一个人一样。Theres never been a player thats had that ability that Michael Jordans had in the kind of way he did it in this game of basketball.从来没有这么一个好球员,像迈克尔;乔丹一样以他的那种方式驾驭篮球。His legacy is a new born child ten years from now and a father says, ;I wish you could have seen Michael Jordan.;他的遗产是一个新出生的孩子在从现在起的十年后也需要被其父亲教诲道:;我真希望你能有幸看到过迈克尔;乔丹的比赛。;The dignity and grace with which you conduct yourself off the court, those are important things, and I believe those are enduring things.高贵和优雅是你在场下才该做的事情,虽然这些都是重要的事情,但我认为有些事情更为重要。You figure thereve been,I dont know, 25,000 years. I dont know how you do the math of that, but thats like out of all 50,000 top athletes, since, you know, prehistoric times brontosaurus and pterodactyls included, hes right there!你认为以前,我不知道,或许是25000年前。我不知道你是怎么算数学的,但是这就像50000位的顶级的运动员,因为,你知道,包括史前时期雷龙和翼手龙那个时期,而他就在那里!Ten years from now, 20 years from now, what I hear people saying, or l would want people to say, and its simple, that if Michael Jordan was still playing the game of basketball, he would dominate.从现在起的十年内,或从今后的20年起,我听到别人说,或者我想人们说,很简单,如果迈克尔;乔丹继续驰骋篮球场,他仍然可以占据统治地位。No matter what happens in this business of basketball, if we didnt get paid a dime, you still would play the game of basketball somewhere.不管接下来篮球场内场外会发生什么事,商业氛围占据多大比重,如果我们没有得到一毫一厘的付,你仍然会在某处继续打篮球,固守着你那个永恒的篮球梦。Somewhere theres a kid working.He wont skip any steps. He will learn from my example, just as I have learned from others.在某个地方,会有一个小孩不懈努力着。他不会跳过任何步骤。他会学我的例子,正如我从别人那里学到的一样。There will be a player greater than me.青出于蓝而胜于蓝,迟早会有一位球员比我更加伟大。注:听力文本来源于普特201202/171472佛山人民医院看男性专科怎么样

南海区妇幼保健院男科咨询 Fish produces a toxic venom which causes profound pain followed by tissue death in its victims. But according to scientists at Sarpolars Butertan institute. The nickname isnt all bad. The researches led by Monicol Lowpest Folelar said the fishs venom also contains chemical compounds with extremely powerful anti-inflammatory properties. Folelar says tests on laboratary mice have proven that compounds are ideal for treating the symptoms of asthma, a chronic, sometimes fatal disease of the lungs which can stricts the airways causing shortness of breath.巴西蟾鱼的毒液可导致受害者组织坏死并伴有剧痛。但Sarpolar Butertan学院的科学家们来说,这种毒素并不只有坏处。Monicol Lowpest Folelar小组的实验结果显示,这种毒液中含有一种有强力消炎功效的成分。Folelar表示,实验室中的白鼠实验实,这种成分可以有效治疗哮喘。哮喘是一种慢性肺部疾病,病发时气管收缩造成短时窒息,这种疾病可能致死。Foleral and her colleagues are using the fish venom compounds in the new drug, she says its superior to those currently available.Foleral和她的同事首次将这种成分制药,她表示新药的效果明显优于现在市场上的药物。In the first place, I would say the new drug has the same or even a greater strength than existing asthma drugs. Secondly, it just not has any side effects.首先,这种新药和现在市场上的药物有相同的效果,甚至是比现在的药物效果更好。其次,这种新药没有任何副作用。In commonly prescribed steroid-based drugs those side effects often includes nausea, high blood pressure, and appetite lost, and patients cant use the drugs continuously. Forleter says thats not the case with the new treatment. The drug she has developped is a synthetic and mass producible version of the compounds found naturally in the fish. And while the institute has secured the patent. Foleral says the process of getting the new drug to the market has only just began.一般来说,常用的类固醇类药物会带来头晕,血压升高,食欲不振等副作用,患者不能持续用药。Foleral表示,他们研制的新药物就不存在这一问题。因为新药物是从自然界中的鱼身上提取出来的物质合成加工而成的。该实验室的学院还向患者们保药品的安全性。Foleral说,新药目前才刚刚上市。Weve completed the entire scientific process, the part which was the responsibility of the researchers. Now, a lot more investments will be necessary, large financial investments in order for the drug to be produced on a larger scale.我们完善了整个科学实验过程,对我们的研究负起责任。现在,吸引投资对发售新药来说十分重要,大投资才能大规模生产。Foleral estimates the process will take about 3 years, eventually helping asthma sufferers, and the Nican fish reputation.Foleral估计新药的推广需要3年时间,最终会帮助患者摆脱病痛,蝉鱼也将发挥它的神奇功效。Romio Reatuers.Romio报道,路透社消息。注:本篇文章英文来自普特论坛,译文属原创,,。201209/198004佛山市南海区第七人民医院男科挂号顺德中医院看男科怎么样

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