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青岛山大医院东院妇科飞度新闻

2019年09月24日 04:40:32|来源:国际在线|编辑:美丽面诊
By 1987 Clack was off to this apparent goldmine of tetrapods,1987年,Clack出发前去寻觅这个显露的四足动物宝藏taking along a student, Per Ahlberg. It was a big undertaking.随行的是当时还是学生的Per Ahlberg,这是一项艰巨的任务And of course it was possible that we were going to find almost nothing, or at least nothing new,当然我们很可能一无所获,或者至少找不到新的东西so the potential was there on the one hand for a spectacular success所以那里的前景是一方面可能获得巨大的成功and on the other hand for a considerable embarrassment.另一方面也可能受到重重阻碍At first it looked more like embarrassment.一开始,看起来更像是受到了阻碍As the week wore on, or the first two weeks wore on we still hadn#39;t found the, the locality that we were looking for.时间一天天过去,最初两周我们都没能找到我们一直寻求的地点。We were beginning to think are we on the right mountain?我们开始思考我们是不是爬错了山Then Clack saw something.后来,Clack有了发现It was covered with dirt and soil. It very nearly got thrown on the scrapheap,它被泥土覆盖住了,差点把它扔进了垃圾堆but fortunately we brushed some of the dirt off and we could see part of a skull.幸运的是,我们刷走了一些泥土,看到了一部分头骨Clack#39;s team had not found the transitional form between fish and tetrapods,Clack的小组并没有找到鱼和四足动物之间的过渡型物种but she had found something almost as rare.但她却找到了另一种非常罕见的动物It was another species of Devonian tetrapod, a species called acanthostega,它是另一种泥盆纪四足动物,叫做棘螈different from Jarvik#39;s but clearly sharing the same 2ncestry and, therefore, also related to humans.它和Jarvik的动物不太一样,但它们显然来自同一个祖先,所以它也和人类有关Acanthostega was only the second complete Devonian tetrapod ever to be found.棘螈是迄今发现的第二只完整的泥盆纪四足动物 Article/201702/493854How To Ski Bumps / Moguls猫跳Bumps or Moguls are something you#39;re going to find a lot of if you#39;re going off-piste如果你是在野外滑雪,那么你将会体验猫跳的刺激感。They can be quite intimidating at times. But with some the techniques we#39;re going to look at,有时候,猫跳的确是有些恐怖。但是如果有以下我们要讲解的技巧,you#39;ll be amazed at how much more confident you#39;ll start to feel when you#39;re starting to ski bumps.你就会很有信心去感受猫跳的刺激感了。Try and find some nice ones, like this, they#39;re not too intimidating.尝试这些柔和的动作,像这样,他们也没有那么恐怖。The bumps behind me here are a little bit too big to start with.我背后的这个猫跳对于刚入门的话难度就比较大。You might be able to get down them,你也许可以领会这些动作,but if you#39;re try to work on your technique find some smaller ones that aren#39;t going to intimidate you.但一旦你要去尝试的时候,一定要在自己能力范围内做一些不会对你造成危害的动作。A good way to practice the bumps is find a few small ones like this and you can actually go across them.一个很好的方法去练习猫跳就是找到像这样的一些小幅度动作,你真的可以掌握这些动作的。We#39;re going to keep our hands in front shoulders over your feet and relax.我们要保持放松并把手伸向身体前方。Two goals:有两个目的:keep your head at the same level so you can absorb the bumps,pushed down into the trough, absorb.保持你头部一直在同一高度上,这样你才能吸收蘑菇,滑到包底的线路。And the other one is to keep your feet incontinence with the snow all the way through, nice and smooth.另一个原则就是要一直保持你的脚和雪地能够自然而又平滑地接触。So the hands are in front.Absorb. Pushed down, really keep that head at the same level.因此手一定要伸向前方。记住这一点。吸收然后下压,一定要保持头部不动。Stay balanced over your feet.保持你双脚平衡。Let the bump push your feet up and then extend down into the trough.让蘑菇推进你的脚向上滑行,然后向下延伸到滑行包底。We#39;re going to look at three ways to handle these bumps.我们将看到有三种方式来掌握这些蘑菇。The first one is actually turning on top of the bump第一个方法就是在蘑菇的包顶转弯。A lot of people try and ski around them the whole time and avoid them and it#39;s not always the best thing to do.很多人都是一直尝试绕过蘑菇,避免猫跳。事实上这并不总是最佳选择。We actually going to use that bump to help us.我们应该用包来促进我们滑行。It#39;s perfect here. I#39;ve got a lot of space around the bump.这就完美了。我在猫跳方面已经有了一定经验。They#39;re not too close and turning on the top is probably the best option.他们并不是很接近,在最高点进行扭转可能是最好的选择。So nice and positive on top of that bump, here#39;s another one on top, on top因此在包顶保持放松乐观的状态。这里是最高点另一个猫跳,在最高点的。Positive pole plant, turning on the bump looking ahead and anticipating what#39;s down the slope.向前点杖,滑到包顶,向前看,观察前面的线路。Get the timing right and the bump will help you turn掌控好节奏,蘑菇就可以帮助你转弯。So another way to do it for these small bumps.因此另一种方式来应对小包If you#39;ve got some space around them, you can turn around the outsides.如果你能有一定空间,你就可以在包的外侧转弯。If it looks like you#39;ve got an opening and space it#39;s not a bad option.如果你看到一条有空间的线路,它不是一个坏的选择。Start to use a combination of these two techniques in the smaller bumps在小幅度的蘑菇中,连接使用这两个技巧。It will give you more options on where you can turn关于在哪开始转弯,它可以给你更多的选择。Turnaround the bumps or on top.绕着包滑,或者在蘑菇顶端转弯。Be versatile.滑雪动作就会变得精绝伦。Once you#39;re feeling happy on the smaller bumps一旦能应对矮一点的蘑菇,we#39;re going to look at the third thing that is going to help you deal with steeper slopes and bigger bumps.我们就可以进入第三种方式了,它会告诉你如何应对陡坡和更大的蘑菇。The last thing look at is using the back side of the bump as a brake.最后一点就是让蘑菇的内侧帮助减速。So I#39;m actuating going to turn into it, use that face to slow me down and then gently turn around it.因此注意我下面的动作,滑进包底,用那一侧来让自己慢下来然后慢慢转身。You#39;ll probably find it happening more on steeper bumps that are a little bit closer together你可能会觉得蘑菇更密,and probably the slope is a bit steeper as well.斜坡太陡峭。Let#39;s take a look.让我们一起看一下。。So there#39;s a back. Use the back of that slope.因此有一个背面。利用斜坡的背面。I#39;m turning into the back side of the bump the around.我转向了蘑菇的内侧。Plant the pole, feel the break and then turn around.点杖,感受这里的停顿,然后转身。Think about where you gonna be on the first two or three bumps.想想在最开始的两三个蘑菇中哪个位置转身。Don#39;t just set off with no idea or plan for where you are going to be turning.不要没有考虑就实施或者为你将在哪里转身做计划。So for at least those first three you are going to be in a good position and get the rhythm and then you#39;re flowing down the run.因此在最开始的三个蘑菇中,你要去找一个好的姿势,并且抓住节奏,然后你要顺着动作滑行。The other thing to watch is your speed into the first turn.另一件要关注的就是在第一个转弯处你的速度问题。Don#39;t go off there like a man possessed and spend the next two turns trying to get control back.不要像一个男人一样突然动作,要在接下来的两个转身尝试控制住速度。Start off nice and easy and build it up.出发要优雅且放。I#39;m coming on to face here我将在这里开始。Some nice bumps down here .这里是一些不错的包。But before I#39;m going to go,I#39;m going to plan my first two or three turns after that it#39;s going to be much more ad-lib但是在我出发之前,在过于即兴的转身过后计划一下最开始的两三个转身。But get those first two or three sorted in your head before you actually set off.在你真正出发前,在你的脑海里策划出最初的两三个动作。You#39;re going to be in a rhythm and you#39;re going to have much more time to handle the rest the run.你要抓准你的节拍,然后你就会在滑行过程中有更多时间去掌控其它方面。So I#39;m looking in front of me, the hands in front, I#39;m going to do a turn around that one over there.因此我向前看,手也向前伸展,我将在那里的猫跳中转身。nice and smooth. Absorb those bumps ,keep those hands in front, looking ahead of you,always be a step ahead.优美而又平滑的。掌握这些猫跳保持双手向前,并要看向你的前方一步。it#39;s not about using any one of those techniques, it#39;s about using all three.这不是说只有其中一个技巧,而是三个都要用。Pick out the right one at the right time and you#39;ll find yourself having a lot more control coming down the bumps.在合适的时间里选择合适的动作。你就会能在猫跳中更好地控制自己的动作。It#39;s really important to look ahead and if you looked at a bump and decided to make a turn on it,向前看真的很重要。如果你已经准备猫跳,并决定在猫跳的时候转身,don#39;t keep staring at it.就不要保持凝视状态。Push that gaze forward.向前推进你的凝视。You#39;ll have much more time to react and you#39;ll see things coming at you earlier.你会有足够的时间做出反应,并且你会事先预见一些事情。Keep those hands in front and really trying and relax.保持双手向前,保持放松。You can actually turn something that is quite intimidating into something that is a lot of fun.你就可以真正将相对刺激危险的事物转化得充满乐趣。注:本文翻译由en88字幕组完成。 Article/201506/379780If your battle with the bulge has become a lost cause, these tips will help you turn the tide and finally win the war on flab.如果你和全身肥肉之间的战争宣告失败,下面这些建议可以帮助你力挽狂澜,最终赢得胜利。You Will Need你需要A diet plan节食计划An exercise plan锻炼计划A gym membership (optional)健身馆会员(可选)A personal trainer (optional)个人教练(可选)Always consult a physician before attempting any exercise plan.准备进行任何锻炼计划之前一定要先向医生咨询。Steps步骤STEP 1 Eat more frequently1.少食多餐Eat smaller meals more frequently to keep your metabolism humming and your blood sugar from dropping too low.少食多餐,保持新陈代谢活跃,防止血糖降得太低。STEP 2 Cut out processed foods2.减少加工食品的摄入Cut out processed foods high in fat and sugar and low in nutritional value, such as snack foods, soda, and fast food.减少含有大量脂肪和糖而营养价值很低的加工食品的摄入,比如零食,汽水和快餐。STEP 3 Switch to lean meats3.改为瘦肉Switch to lean meats like chicken, turkey, and especially fish. The omega-3 fatty acids in fish encourage your body to use fat as fuel.改为吃瘦肉,比如鸡肉,火鸡肉,尤其是鱼。鱼中的omega-3脂肪酸可以鼓励身体将脂肪用作燃料。Omega-3 fatty acids are also mood elevators and have been known to improve cardiovascular function and lower your risk of heart disease.omega-3脂肪酸还可以提高情绪,促进心脑血管功能,降低心脏病风险。STEP 4 Drink more water4.多喝水Drink more water to stay hydrated during your workouts. Water also keeps your body lubricated like oil in an engine.锻炼期间多喝水,保持补水。水还可以让身体更加润滑,就像引擎中的油一样。STEP 5 Get moving5.运动Emphasize cardio workouts with exercises like bike riding and walking to burn excess calories.加强有氧运动,比如骑自行车和步行,燃烧多余的热量。Join a gym or see a personal trainer to stay motivated.加入健身馆或者聘用个人教练,让你更有动力。STEP 6 Focus on interval training6.间隔锻炼Focus on interval training that combines near maximum exertion with a moderate rest period for shorter, more intense workouts.集中进行间隔锻炼,接近最大限度的锻炼和适度的休息与更短时间强度更大的锻炼轮换进行。STEP 7 Combine strength training and cardio7.力量锻炼和有氧运动结合Combine strength training with cardio workouts to significantly increase your fat burning potential and get the body you#39;ve always wanted.力量锻炼和有氧运动相结合可以有效促进脂肪燃烧,让你得到梦寐以求的身材。According to the Centers for Disease Control, 70 percent of students do not attend daily physical activity classes during a school week.根据疾病控制中心的数据,70%的学生在学校不参加日常体育活动。视频听力译文由。 /201503/366997

I don#39;t think you see anything happening to you现在应该还没发生I#39;m still working on it我还在努力I#39;m getting tired here我有点累了Something happening?发生了什么吗Oh, my goodness, I could see myself哦,我的天,我可以看到我自己了Well, this is a real workout, I#39;ll tell you这个真的是太费体力了So what we#39;ve created here is a beautiful silver mirrored flask这里我们做成了一个银镜烧瓶So look at that看这个Dr. Dolhun has created a beautiful silver mirrorDolhun士做成了一个漂亮的银镜It almost looks like a Christmas tree ornament就像是圣诞树上的装饰品一样and a silver ornament could in fact be made this way银色装饰确实也可以这样做So here#39;s what#39;s happening这里情况是这样的Electrons from here, the glucose电子来自葡萄糖get transferred to the silver reducing it to silver 0被转移给银离子,将其还原为Ag?Silver 0 is insoluble in water. It#39;s just silver metal Ag?不溶于水,也就是银金属And it#39;s precipitating out on the inside of the flask它会沉淀到烧瓶内面forming the beautiful silver mirror that we see形成我们所看到的漂亮银镜Now this process is called reduction这个过程叫作还原And whenever something is reduced有东西被还原something else is oxidized就有东西被氧化So the glucose must be getting oxidized被氧化的必然是葡萄糖It becomes this它变成这个An oxygen was added here一个氧被加到这里Now this process is similar to metabolism in our bodies这个过程很类似于我们体内的代谢过程We remove electrons from the sugar we eat我们也会从吃下的糖中移除一个电子and transfer them to the oxygen that we breathe将其转移给我们呼入的氧气In a reduction reaction like ;mirror, mirror;;魔镜魔镜;这样的还原反应there might be energy released会释放出能量In your body, this energy is harnessed in chemical bonds人体内,这些能量会用化学键储存起来stored for later以便日后使用The point of Tollens test was not to produce silver mirrorsTollens测试的本身目的不是为了制造银镜although a similar reaction is used for that today虽然现在类似反应确实被用作这个用途The point was to distinguish between two types of sugars其本身目的是为了区分两种糖One is containing aldehydes and one is containing ketones一种中包含醛,一种中包含酮Let me draw those我画一下这些The difference is that in an aldehyde差别在于,醛中the carbon is connected to hydrogen碳是同氢相连的and in the ketone, the carbon is connected to another carbon而酮同,碳是和另一个碳相连的Aldehydes are more reactive than ketones醛比酮的反应性更强so they will react with the silver ions所以它们能同银离子反应while the ketones will not而酮则不能That#39;s it for me. Hopefully, you enjoyed this 就到这里吧,但愿大家喜欢这个视频And I will see you next time我们下次再见 Article/201501/352467

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