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嘉兴医院有没有割双眼皮的飞度【快速问医生】桐乡市妇幼保健院减肥手术多少钱

2018年09月22日 14:48:29    日报  参与评论()人

浙江嘉兴隆鼻哪家医院好浙江新安国际医院祛疤手术多少钱Did You Know That Moose Can Have Arthritis?糜鹿也有关节炎?It’s easy to tell, even at a glance, that people and moose are pretty different. Moose, at least males, have big, wing shaped antlers. People have no antlers. Moose are herbivores, eating only plants.即便只匆匆一瞥,也能轻易看出人和糜鹿是完全不同的动物。糜鹿,至少是雄性糜鹿拥有大型的、像翅膀一样的鹿角。而人是没有角的。糜鹿是食草动物,只吃植物。We eat mostly junk food. Despite their salad only diet, moose can weigh as much as 1400 pounds. Even the fattest humans top the scales at only around 1000 pounds. The list goes on.我们却几乎总吃垃圾食品。尽管“色拉”是糜鹿唯一的食物,它们的体重却能达到1400磅。而我们人类中最胖的也只有1000磅。两者间的此类差异数不胜数。And yet, in some ways, people and moose are similar. For example, both suffer from arthritis.但是在某些方面,人与糜鹿是相似的。例如,两者都饱受关节炎的困扰。And that’s interesting because how and why moose develop arthritis may be able to tell us something about the pathology of the human variety.这个问题很有趣,因为研究糜鹿患上关节炎的过程和原因,可能有助于我们发现一些人类患关节炎的病理。For example, researchers working in Michigan’s upper peninsula have been studying moose there for decades. And one thing they’ve found is while arthritis in moose is partly genetic, it’s also triggered by the environment.例如,位于密西根湖上游半岛的研究人员已经对糜鹿进行了数十年的研究。他们发现糜鹿患关节炎在一定程度上是由基因引起的,同时也受到环境的影响。Specifically, the researchers have observed that moose that suffer from arthritis seem to have not had access to proper nutrition early in life.特别需要提到的是,研究人员观察的那些患关节炎的糜鹿似乎幼年都营养不良。Perhaps they were born during a drought when there weren’t enough berries and other plants to eat. Whatever the case, even if those moose had plenty to eat later on, their very early nutritional deficits appear to have doomed them to an adult life of aching joints.可能是因为它们出生于旱期,没有足够的浆果和其他植被可以食用。无论情况如何,即便那些糜鹿后来有足够的食物,它们幼年的营养匮乏使它们的成年生活注定与关节疼痛相伴。The takeaway for scientists who study arthritis, and doctors who treat it in people, is that how and what we eat, even as babies, may lay the foundation for chronic arthritis and other health problems later in life.研究关节炎的科学家和治疗关节炎的医生得出结论:我们(即便是在婴儿时期)怎么吃、吃什么可能会为后来生活中的慢性关节炎和其他健康问题埋下隐患。And thanks to the moose, those scientists are also beginning to better understand the sorts of diets that could lower those risks.得益于对麋鹿的研究,那些科学家也开始更好地了解能降低患关节炎风险的饮食种类。 /201206/186947嘉兴市新塍人民医院激光去红血丝多少钱 平湖市红十字会医院祛眼袋手术多少钱

嘉兴眼袋抽脂哪家医院好嘉兴曙光医院去黑头排名 As six month of snow and ice begins to melt, Yellowstone starts to come back to life.随着六个月的雪和冰开始融化,黄石公园开始恢复生机。Cascading snow melt swells the streams of rivers.积雪融化汇成河流。Its a hazed that the migrating herds must cross.这是一种阴霾,牲畜必须交叉迁移。Young are barely asked to task.年轻动物们几乎没有任务要求。The Yellowstone River has increased its flow tenfold.黄石河已经增加了十倍流量。In less than two weeks, the thaw has brought remarkable changes to the heart of Yellowstone.在不到两周的时间里, 黄石公园的核心已经带来了显著的改变。注:听力文本来源于普特 201209/201728嘉兴皱纹去除

浙江嘉兴痤疮治疗多少钱Hawaii has some of the most spectacular shield volcanoes that are very similar to volcanoes we see on Venus.夏威夷有着最令人叹为观止的火山,和我们在金星上看到的类似。The huge gently sloped volcanoes of Hawaii maybe impressive, On Venus there are at least 150 ranging from this size to ten times larger.夏威夷巨大的呈倾斜度的火山也许令人印象深刻,而在金星上至少有150倍大小。But the observed visitors may noticed that Venus is missing something.但是,观察者们可能注意到金星少了什么东西。The whole impact craters situation on Venus is really very puzzling.整个金星上的陨石坑情况真的很让人迷惑。With Magellan images we see really small number impact craters and such a small numbers about a thousand, because we know the radar which impact craters can actually date to surface too. 我们看到麦哲伦图像真的很小数量的陨石坑,因为我们知道雷达表面的陨石坑实际上已经追溯到表面。Some are between 300 million and 1 billion years old. 表面有些已经有3亿年间或者 10亿年的历史了。Some time in the recent geological past it seems the entire surface of Venus was remodeled.在最近一段时间似乎金星的地质过去曾经整个表面被改建过。注:听力文本来源于普特201203/175231 Science and technology.科技。Exercise and addiction.锻炼也会上瘾。Fun run.奔跑的奥秘。People, it seems, have evolved to be addicted to exercise.人类似乎在进化过程中对锻炼上瘾了。AS THE legions of gym bunnies and jogging enthusiasts who race out into the spring sunshine every year clearly demonstrate, running can be fun. More specifically, running triggers the release of brain chemicals called endocannabinoids that create a potent feeling of pleasure. As their name suggests, these endocannabinoids work in the same way as the active ingredient of marijuana.那一大批在春日和煦的阳光中奔跑着的健身爱好者无不向我们展示着奔跑的乐趣。更确切地讲,在奔跑时人体内有一种化学物质被释放,从而使人产生一种强烈的愉悦感。正如其名字的含义一般,这些endocannabinoids有着跟大麻中的有效成分一样的效果。From an evolutionary standpoint this surge of endocannabinoids, and the ;runners high; it creates, make sense. For ancient humans, remaining fit enough to run after game and away from predators and enemies was vital for survival. Yet whether other mammals are also driven to exercise by endocannabinoids has remained a mystery. Now a study led by David Raichlen of the University of Arizona has revealed that the runners high does exist in other species, but not in all.从进化论的观点来看,人体内endocannabinoids水平的上升及由此而生的;赛跑者的亢奋;对人类的发展是有意义的。那些远古时代的人类,为了能够顺利追捕到猎物并从其他猎食者的追击中逃脱,必须将身体状态始终维持在一个良好的水平。既然人类如此,那么其他哺乳动物是否也会在endocannabinoids的内在驱动下而进行锻炼呢?这仍是个未解之谜。现在一项由Arizona大学的David Raichlen士领衔的研究已经在其他哺乳动物体内---并非全部都有——发现了endocannabinoids的存在。You expect me to what?你猜我在干什么?Dr Raichlen hypothesised that endocannabinoid-driven exercise highs would be found in those mammals that gain an evolutionary benefit from being fast on their feet: antelopes, horses and wolves, for example. However, he also thought that they would not be present in those which are known for being quick and agile, but not for running, like ferrets. To test these ideas, he and a team of colleagues devised an experiment that monitored the endocannabinoid levels of different species after they had been walking or running on a tmill.Raichlen先提出了一个假设:像羚羊,马和狼这样一些因拥有;飞毛腿;而在进化过程中受益的哺乳动物中也存在着;锻炼产生的兴奋;现象;而那些以灵动著称,却非凭奔跑文明的动物,如雪貂,则不会出现此现象。为了检验这些猜想,Raichlen和由其同事所组成的团队设计了一个实验——对在跑步机上行走,奔跑过后的动物体内的endocannabinoids水平进行监控。The experimental animals in question were ten people, eight dogs and eight ferrets. Dr Raichlen had them run or walk on the tmill for 30 minutes. Since running and walking speeds differ from species to species, the speed at which the tmill moved was varied so that it raised the heart rates of the different participants to the same level. Running speeds were thus set at 2.5 metres a second for people, 1.83 for dogs and 0.84 for ferrets. Walking speeds were set at 1.25 metres a second for people and 1.1 for dogs. The ferrets proved too easily distracted to walk consistently on the tmills and were thus left to sit quietly in their cages for this part of the study. Each participating animal ran for one session and walked for one other, and did so on separate days, to avoid exhaustion. Before and after each session, blood was drawn from each and the endocannabinoid levels in it were measured.被考虑用来进行实验的动物有以下三种:十个人,八条和八只雪貂。Raichlen士先让他们在跑步机上行走或奔跑30分钟。由于不同的动物速度不一,所以跑步机的传送带速度设置是以使不同动物的心率达到同一水平为依据。这样设置的结果便为:奔跑速度为人类2.5米/秒,1.83米/秒,雪貂0.84米/秒;行走速度为人类1.25米/秒,1.1米/秒。雪貂由于太易分心,没办法让它持续在跑步机上行走,所以在进行该部分实验时它们被留在了笼中静静地坐着。每只动物会跑一段走一段,为了避免动物们出现筋疲力尽的情况,实验是分成几天进行的。在实验前和试验后,动物们都会被抽血以检验其中的endocannabinoid水平。The researchers report in the Journal of Experimental Biology that, after 30 minutes of walking (or sitting in a cage), participants endocannabinoid levels did not rise. After running, however, the average humans endocannabinoid levels rose from 2.4 picomoles per millilitre (pmol/ml) to 6.1. Dogs showed a similar trend, with levels rising from 2.4 pmol/ml to 8.0. Ferrets were different. Although they did show an increase, from 3.0 to 3.9 pmol/ml, this was not a statistically significant rise. These findings suggest that dogs experience a ;runners high; but ferrets do not.研究人员在《生物学实验》杂志中提到,在经过30分钟的行走(雪貂是呆在笼中)之后,参加实验的动物的endocannabinoid水平并没上升。然而在奔跑过后情况则有所不同:那10个人的平均endocannabinoid水平从2.4 pmol/ml上升到了6.1 pmol/ml。的变化趋势与人类似——由2.4 pmol/ml升至8.0 pmol/ml。唯独雪貂例外。他们的endocannabinoid水平虽亦有所上升——3.0 至 3.9 pmol/ml,但仍处于统计学上可不被纳入考虑的范围内。这些发现表明中同样存在着;赛跑者的亢奋;现象,而雪貂则没有。Dr Raichlen argues that it makes sense for ferrets not to have systems that reward cardiovascular activity, since such exercise consumes a lot of energy, may cause injury, and is not crucial to the stealthy hunting technique of sneaking down burrows and killing rabbits in their sleep. What is not clear is whether the endocannabinoid reward is an ancient mechanism that has been lost on branches of the mammalian tree that do not need it, or is something that evolves quickly in species which become active. Given that humanitys arboreal simian ancestors would presumably have had little need to run, it is probably the latter. But to be sure Dr Raichlen will need to put animals far less co-operative than ferrets on the tmill.看来雪貂体内并不存在对心血管活动进行阳性强化刺激的系统,Raichlen士认为这对雪貂的发展同样是有意义的,要知道太剧烈的运动会消耗掉过多的能量, 甚至引发受伤,且这并非是雪貂捕猎技术中的关键——它们一般只需偷偷溜进兔子窝并在兔子们熟睡时将其杀死即可。仍有待考的是,究竟这种endocannabinoid刺激机制是从远古时代起即为哺乳类动物所拥有(但在一些不需此机制的哺乳类分中渐渐退化),还是从某些活跃的个别物种中进化出来的?鉴于人类的祖先—类人猿是树栖动物,据推测它们很少有奔跑的需要,因此正确结论很可能是后者。但若要确认此假设,Raichlen士需将更多如雪貂般不太合作的动物哄上跑步机。 /201209/199733嘉兴去斑美白多少钱嘉兴曙光中西医医院处女膜修复费用

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