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阿克苏市黑脸娃娃多少钱挂号指南

2019年09月20日 09:14:02 | 作者:医苑爱问 | 来源:新华社
From fluvaccines to tetanus boosters, injections are amust in modern medicine.从流感疫苗到破伤风针,注射在现代医学中是不可或缺的。But do they always have to makeyou say Ouch?但是它们是否就一定会让你尖叫呢?Eh,no?嗯,不会吗?No,indeed.If new microneedle technology is successful, we may soon have needles that inject medicine without your even knowing it.真的不会!如果新的显微针技术成功了的话,我们将很快享受甚至你都不能意识到的药物注射。How does this work, you ask?你快问它是如何办到的?How does it work?如何办到的?You feel things because of the nerves that are embedded in your skin.你有感觉是因为你皮肤里镶嵌的有神经。However, the entiresurface of your skin is not covered.然而,它却没有完全覆盖你的皮肤。From a microscopic viewpoint, there is plenty of spacebetween nerves where a super-tiny needle wouldn’t be felt.在显微镜下可以看到,神经之间有很多空间,而在这里人们便感受不到微型针。No way!不可能!Way! Researcher Mark Prausnitz and his coworkers at the Georgia Institute of Technology inAtlanta have aly built micro-injection devices.可能!亚特兰大乔治亚理工学院的研究人员Mark Prausnitz和他的同伴们已经研制出了微型注射器具。Imagine a platform the size of your thumbnail,made of silicon, metal or glass.试想它就如拇指指甲盖大小,材料是硅、金属或是玻璃。The surface is covered with a thousand needles, each no bigger than aperiod at the end of a typewritten sentence.表面被一千个微型针所覆盖,每一个都还没一个句子中的句号那么大。When this chip is placed on your skin its like rolling in a briar patch-you are pierced again andagain.当这个芯片被植入到你的皮肤就仿佛是卷入到了荆棘区一样,它会一次又一次的刺你。But so small are the briars, you feel nothing.但它是如此的小,以至于你什么都感觉不到。Because they cause no discomfort,microneedles may soon allow doctors to administer controlled amounts of medication over longperiods of time.因为它们不会带来不适感。微型针很快就能让医生在很长时间内掌管在量上有控制的药物治疗。That would be a big step toward the precision medicine of tomorrow–and awayfrom the big Ouch of yesterday.这对于告别以前的疼痛时代、对于将来药物治疗的精准性来说都是迈出了一大步。 201405/299331If you love your job, part of the reason may be that you freely chose the work that you do. 如果你喜欢你的工作,一部分的原因可能你轻轻松松就选定了你要做的工作。You were not forced to do it. But imagine a situation during wartime in which there were some soldiers or guards with guns standing above you, forcing you to do that same job. Suddenly it would not be pleasurable work anymore. 你不是被迫做的。但是假定这样一个情景:战争期间有很多士兵或一些带的警戒人员是你的顶头上司,强迫你去做那些完全相同的工作。刹那间你就会发现那些工作做起来并没有那么地令人舒心。The fear that you might be harmed if you did not work quickly and efficiently would be very stressful. 担心就是如果你没有快速而高效地做完工作,你可能会遭受惩罚,从而感到很有压力。There would be a sense of danger as you worked below the level where the gunmen were standing. 当你在持者的眼皮子底下工作的时候总会感到有一丝的危险。Working ;under the gun; of a watchful and hostile master would make anyone nervous. 在被监视、被敌方控制的极大压力下工作会令任何人紧张。Thus, although no one we can see nearby may have an actual gun, we use this idiom in any work situation where the workers are put under strong pressure to perform quickly and efficiently.因此,虽然我们身边没有任何一个有真的人,我们通常将这则谚语用在一种工作条件下,这个工作状态就是工人们要顶着巨大的压力,快速高效地执行任务。201307/248119

Facebook is bad for youFacebook对你没好处Get a life!回到现实中过日子吧!Using the social network seems to make people more miserable使用Facebook这种社交网站看起来让人们更加痛苦Aug 17th 2013 |From the print editionTHOSE who have resisted the urge to join Facebook will surely feel vindicated when they the latest research. A study just published by the Public Library of Science, conducted by Ethan Kross of the University of Michigan and Philippe Verduyn of Leuven University in Belgium, has shown that the more someone uses Facebook, the less satisfied he is with life.那些坚决不加入Facebook的人们读到最新的研究的时候肯定会觉得他们的选择是对的。刚刚发表在《公共科学图书馆》上的一份研究显示,一个人使用Facebook越频繁,他对生活就越不满意,这份研究是由美国密歇根大学的Ethan Kross和比利时鲁汶大学的Philippe Verduyn领导进行的。Past investigations have found that using Facebook is associated with jealousy, social tension, isolation and depression. But these studies have all been “cross-sectional”—in other words, snapshots in time. As such, they risk confusing correlation with causation: perhaps those who spend more time on social media are more prone to negative emotions in the first place. The study conducted by Dr Kross and Dr Verduyn is the first to follow Facebook users for an extended period, to track how their emotions change.过去的调查研究发现使用Facebook会滋生嫉妒,社交紧张,孤立和压抑等情绪。但是这些研究都是断面的,换句话说就是都是简要说明。这样的话,他们可能把原因与相关因素给混淆了。或许花费大量时间在社交媒体上面的人们本来就是比较悲观的人。而Kross士和Verduyn士指导的研究是第一个在一段时间内追踪一群Facebook使用者情绪变化的实验。The researchers recruited 82 Facebookers for their study. These volunteers, in their late teens or early 20s, agreed to have their Facebook activity observed for two weeks and to report, five times a day, on their state of mind and their direct social contacts (phone calls and meetings in person with other people). These reports were prompted by text messages, sent between 10am and midnight, asking them to complete a short questionnaire.研究人员征集了82名Facebook用户参与他们的研究。这些参与者年龄在二十岁左右。他们同意研究人员观察他们的Facebook活动两周,并且每天报告五次他们的心理状况和直接社交联系状况(比如电话和约会)。这些报告通过短信提示,短信发出时间为上午十点到晚上十二点之间,会要求参与者完成一份简短的问卷。When the researchers analysed the results, they found that the more a volunteer used Facebook in the period between two questionnaires, the worse he reported feeling the next time he filled in a questionnaire. Volunteers were also asked to rate their satisfaction with life at the start and the end of the study. Those who used Facebook a lot were more likely to report a decline in satisfaction than those who visited the site infrequently. In contrast, there was a positive association between the amount of direct social contact a volunteer had and how positive he felt. In other words, the more volunteers socialised in the real world, the more positive they reported feeling the next time they filled in the questionnaire.研究人员分析结果的时候发现在两份问卷间隔期使用Facebook越频繁的参与者,填写第二次问卷的时候情绪就越糟糕。在研究开始和结束时,参与者也被要求评价他们生活的满意度。较多使用Facebook的人比较少使用的人满意度下降明显。相反地,直接社交联系则会产生积极的影响。换句话说,参与者越多的参与真实的社交活动,他们下次填问卷的时候情绪就更积极。A volunteer’s sex had no influence on these findings; nor did the size of his (or her) social network, his stated motivation for using Facebook, his level of loneliness or depression or his self-esteem. Dr Kross and Dr Verduyn therefore conclude that, rather than enhancing well-being, Facebook undermines it.参与者的性别对研究结果没有影响,参与者社交圈的大小,其使用Facebook的动机,其孤独,抑郁或者自负的程度对结果都没有影响。Kross士和Verduyn士于是得出结论,Facebook降低了人们的幸福程度。Their study does not tease out why socialising on Facebook has a different effect from socialising in person. But an earlier investigation, conducted by social scientists at Humboldt University and Darmstadt’s Technical University, both in Germany, may have found the root cause. These researchers, who presented their findings at a conference in Leipzig in February, surveyed 584 users of Facebook aged mostly in their 20s. They found that the most common emotion aroused by using Facebook is envy. Endlessly comparing themselves with peers who have doctored their photographs, amplified their achievements and plagiarised their bons mots can leave Facebook’s users more than a little green-eyed. Real-life encounters, by contrast, are more WYSIWYG (what you see is what you get).他们的研究没有找出Facebook上的社交活动对不同人的社交活动影响的差异。但是更早的一份由德国的洪堡大学和达姆施塔特工业大学的社会科学家指导的调查研究发现的根本原因。这些研究人员二月份的时候在莱比锡的一个会议上展示了他们的研究结果。他们的实验对象为584名20多岁的Facebook使用者。他们发现使用Facebook最容易引起的情绪是嫉妒。无休止的与自己的同龄人做对比,看他们P过的照片,夸大自己的成就,剽窃别人的名言,这些都让Facebook的使用者心生嫉妒。比较而言,现实生活中的碰面则更真实。What neither study proves is whether all this is true only for younger users of Facebook. Older ones may be more mellow, and thus less begrudging of their friends’ successes, counterfeit or real. Maybe.这些研究都没有实的是这些研究结果是不是只发生在年轻人身上。年龄稍大的人或许更加成熟,这样他们就不会太妒忌自己朋友的成功。是真是假都说不定。 /201308/253184

Don: Hey, Yaeuml;l, Have you heard? Weve discovered two new oceans? 嘿,Yaeuml;l,你听说了吗?我们已经发现了两块新大洋。Yaeuml;l: Where? 在哪啊?D: On Mars. Well, they arent there any longer, but they were there a few billion years ago. 在火星上。虽然现在不在那儿了,但几十亿年前一直都在。Y: I thought scientists werent sure if Mars had oceans or not. 我想科学家们还是不确定火星上到底有没有海洋。D: They werent. The Mars Opportunity Rover found sulfates and other salts in the soil that were left behind when standing water evaporated. It also discovered cross-bedding in the soil which was created by water ripples, and tiny mineral deposits called blueberries that only appear if water is present. The northern lowlands of Mars looked like there might have been an ocean there, but there wasnt definite proof. 恩,不确定。机遇号火星探测器在土壤中发现了水分长期挥发后所留下的硫酸盐和其它的盐类。同时还在土壤中发现了水波所形成的交错层,以及称之为蓝莓的小型矿床,而这种矿床只有在存在水的地方才产生。火星的北部低地看起来像是曾经有过一片海洋,但还没有发现确凿的据。Y: So, what has changed their minds? 那又是什么让科学家们改变了想法呢?D: Gamma Ray evidence. 是伽马射线。Y: That sounds exciting.听起来真令人兴奋啊。 D: It is. The Mars Odyssey spacecraft had a gamma-ray spectrometer onboard that could detect elements buried as much as a third of a meter, or thirteen inches, below the soil. Scientists used the spectrometer to measure the amount of potassium, thorium, and iron above and below what they thought to be the shoreline of ancient oceans. They expected to see low concentrations above the shoreline and larger concentrations below. That would indicate that the elements had been leached out of the soil by the water. 是啊。奥德赛号火星探测器有一个γ射线能谱仪主板,它可以检测到埋藏于地底三分之一或地下13英寸的元素。科学家们利用光谱仪在所推断的远古海洋海岸线附近测量钾、钍、铁的含量。科学家们预测海岸线上的元素浓度较低,而海岸线以下的浓度较高。这将明那些元素是通过水过滤到土壤中的。Y: So, what did they find? 那么他们究竟发现了什么呢?D: They found the shorelines of a younger ocean about ten times the size of the Mediterranean Sea, and an older ocean twice that size. 他们发现了一个较新,海岸线大约是地中海的10倍的海洋痕迹,和一个年代比较久远相当于地中海海岸线两倍的海洋痕迹。Y: Its too bad those oceans still arent there.这些海洋已经不在那儿真是太糟糕了。D: Yeah. It sure would be a great spot for a cruise.对啊,如果它们还在那儿,那将是个很适合巡航的地儿。201307/249043

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