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标题: 60s Science---From everyday collection to environmental protection, think Green! [打印本页]

作者: 阿泰 时间: 2008-12-26 16:11:20 标题: 60s Science---From everyday collection to environmental protection, think Green!

本帖最后由阿泰于 2009-2-23 09:29 编辑

12月26日 Brain Activity Altered during Religious Experience

链接：http://www.sciam.com/podcast/episode.cfm?id=brain-activity-altered-during-relig-08-12-24

文本：In America there’s a feeling of Christmas. But that’s not the only winter holiday going on. Jews are lighting Hanukkah candles, Muslims recently feasted on Eid al-Adha, and pagans celebrated the solstice. So it’s a good time for researchers to consider spirituality—from a scientific point of view.

One experience central to major religions around the world is that of transcendence, the idea of almost losing a sense of self to the feeling that there’s something bigger out there. Now scientists at the University of Missouri say they’ve located that experience in our brains. All the people studied, from Buddhist monks in meditation to Francescan nuns in prayer, experience this transcendence. And they all have decreased activity in the right parietal lobe of the brain. That area has to do with senses such as orienting yourself in the space around you. The study was published in Zygon: Journal of Religion & Science.

Interestingly, people with injuries to the right parietal lobe report increased levels of spiritual experiences. The researchers are quick to say that this connection doesn’t minimize the role of religion, and that religious or spiritual experiences might decrease activity in that region and thus increase that special feeling of transcendence. Just in time for the holidays.
—Cynthia Graber

难词：Hanukkah solstice Zygon

[ 本帖最后由阿泰于 2009-1-17 22:25 编辑 ]

作者: glamorousky 时间: 2008-12-26 16:25:26

是拿来听写么~~~:rolleyes:

作者: 阿泰 时间: 2008-12-26 20:01:34

是的

作者: james011137 时间: 2008-12-26 22:24:57

阿泰你的头像是周杰伦？

作者: 阿泰 时间: 2008-12-26 22:44:20

恩

作者: james011137 时间: 2008-12-26 22:46:15

原帖由阿泰于 2008-12-26 22:44 发表
恩

脸咋变型了。。人家周董脸很小的:loveliness:

作者: 阿泰 时间: 2008-12-26 23:12:51 标题: 回复 #6 james011137 的帖子

角度的问题吧;)

作者: hyacinth 时间: 2008-12-27 01:27:59

你这是自己听写呢。。。还是带板油听写呢。。。:confused:

作者: 阿泰 时间: 2008-12-27 08:42:33 标题: 回复 #8 hyacinth 的帖子

自己

作者: 阿泰 时间: 2008-12-27 16:18:50

12月27日 Fasting May Equal Calorie-Restricted Diets

Sometimes it’s not what you eat, but when you eat it. At least when it comes to longevity diets. For some time, scientists have known that animals kept on a strict diet live longer than their well-fed peers. But this Methuselah meal plan is no ordinary just-say-no-to-that-second-slice of pie kind of diet. To reap the life-extending benefits, some of these animals cut their calorie consumption in half. Such a diet might be do-able for captive mice and monkeys, but it would be a tough sell for people.

Then, five years ago, studies in mice suggested that intermittent fasting would work just as well. These mice abstained from eating every other day, and lived longer then their gluttonous comrades—without really skimping on the total calories they consumed.

Now, scientists at Kyoto University have found the same thing in worms that fasted every third day. And they found a gene that regulates the effect, results reported in the journal Nature. Like the mice, these fasting worms did not cut their total calorie intake. But they boosted their lifespan by 50 percent, and showed fewer signs of physical decline than their peers. So go ahead, enjoy that extra slice of pie. Because tomorrow’s another day. To not eat.

—Karen Hopkin

难词：Methuselah intermittent gluttonous

作者: hyacinth 时间: 2008-12-28 09:57:46 标题: 回复 #9 阿泰的帖子

又要考了? :confused:

加油~~

作者: 阿泰 时间: 2008-12-28 10:02:23

phd==permanent head damage:rolleyes:

作者: 阿泰 时间: 2008-12-28 14:32:27

今天没有，上个December 23, 2008的

Crowds Walking Can Make A Bridge Sway http://www.sciam.com/podcast/epi ... -bridge-sw-08-12-23

On its opening day, 90,000 tourists traipsed across the London Millennium Bridge. That pitter patter of pedestrian feet caused the structure to visibly rock, earning it the nickname “the wobbly bridge.” Now, in the December 17th issue of the Proceedings of the Royal Society, civil engineers say they think they know what made the London bridge sway.

It had initially been assumed that the movement was caused by a portion of the pedestrians marching in lock-step. Their synchronized waddle could have caused the bridge to oscillate, leading even more of them to tread in tandem. But the engineers say that the same oscillations can be generated by people who are simply plodding along, just trying to keep their balance—no marching necessary.

Using mathematical modeling, the scientists showed that even walking on level ground people stabilize themselves by controlling where they place their feet side-to-side. So if they’re walking on a bridge that also wiggles side-to-side, in an effort to keep their balance they may shift their weight even more, making the problem worse. So next time you go to walk across the Thames, remember, the London Millennium Bridge is not falling down. But you still might want to watch your step.

生词： traipsed tandem

作者: 阿泰 时间: 2008-12-29 15:47:33

December 22, 2008 Fruit Fly Immunity Stronger While Sleeping

For those of you who’ve spent many of your waking hours this winter washing your hands and fretting about getting sick, you might be better off just staying in bed. Because scientists from Stanford University have found that the immune system works best after dark.

The scientists were studying fruit flies, which are active at dawn and dusk, and sleep through the night like you and me. The circadian rhythm that tells these critters, and many others, when to snooze and when to cruise, controls lots of bodily functions. So the scientists got to wondering whether it also regulates the immune system and the fly’s ability to fight infections. Yes, even fruit flies can catch some pretty nasty bugs. Which the scientists proceeded to demonstrate.

They took a bunch of flies and infected them with some unsavory bacteria. Half the flies were infected while they slept, half while they were awake. Turns out that the flies that were infected at night were better able to battle their bugs than flies who got sick during the day, results presented at the American Society for Cell Biology meeting in San Francisco on December 14th. Whether human immunity is also better during sleep isn’t yet known. But Shakespeare might have been onto something when he called sleep “nature’s soft nurse.

难词：fretting critter

作者: 阿泰 时间: 2008-12-30 15:59:38

December 29, 2008 Men's Chess Superiority Explained
http://www.sciam.com/podcast/epi ... -explained-08-12-29

Women are so much better than men at so many things. But according to a report published by the Royal Society, chess is not one of them. The topic of sex differences when it comes to matters of the mind is, needless to say, a divisive one. Those who wish to argue that women are just not as smart as men often point to chess as their proof. Although girls can obviously play, no woman’s ever been world champion. But before looking for cultural or biological explanations for the disparity, scientists say you need to do the math.

Serious chess players are assigned ratings based on their performance against other players. So the scientists compared the ratings of the top hundred male and top hundred female players from Germany. And they found that the men indeed outperformed the women. However that difference can be almost entirely explained by statistics. Because the larger the population, the wider the range of measured scores—the bell curve has a longer tail. And because many more men play than women, the best male players are extreme outliers on that bell curve. As more women play, a few should also reach those extremes, right out there with the men. To which one might be tempted to say: Checkmate.

无难词

作者: 阿泰 时间: 2008-12-31 12:09:30

December 30, 2008 Brain Smarter Than We Are
http://www.sciam.com/podcast/epi ... han-we-are-08-12-30

We humans don’t always make the best choices. But now a study in the journal Neuron demonstrates that maybe our brains do make the best possible decisions—but only if it’s done unconsciously. Alex Pouget at the University of Rochester takes a look at unconscious information gathering. He says a lot of our good decisions—like stopping at a red light—are unconscious ones.

Subjects stared at dots moving around in random patterns on a screen. A controlled number were heading towards either the right or left of the screen. The subjects were asked if the dots were moving left or right. The longer subjects stared at the screen, the more sure they became of the answer.

Pouget analyzed the subjects’ neuronal patterns. If a few dots in the group moved to the right, a part of the brain that recognizes right-direction movement lit up. As time went on, it’d light up more and more frequently until the subjects gave a definitive answer. According to Pouget, the subjects were subconsciously gathering information until they finally felt sure of the answer. So the brain usually gets it right. Too bad we still seem to run so many red lights.

—Cynthia Graber

无难词

作者: nickey0809 时间: 2008-12-31 22:54:33 标题: Science's 2008 Achievement List

http://www.sciam.com/podcast/epi ... ement-list-08-12-31

It’s the time of year to take a look back—and that’s just what the journal Science did as they listed their most important breakthroughs of 2008. At the very top of their list: reprogramming cells. Scientists were able to successfully transform cells from ill patients into stem cells. This is important in understanding exactly how cells develop, and it could be a crucial step in finding a way to treat disease by using a patient’s own cells.

A few other top achievements of 2008:
-For the first time, scientists have been able to actually see planets orbiting a distant star.
-A team discovered a catalyst that can facilitate using electricity to split water into hydrogen for a fuel cell.
-An entirely new family of high-temperature superconductors was discovered.
-And there’s been a genome sequencing bonanza, as new techniques make the process faster and cheaper. Mitochondrial genomes sequenced this year include extinct cave bears and most of a wooly mammoth. Not to mention a first draft of the full DNA sequence of a Neanderthal. Their genome sequence could explain why they could never sequence genomes.

—Cynthia Graber

作者: 阿泰 时间: 2009-1-1 08:15:20 标题: 回复 #17 nickey0809 的帖子

这个你读了吗

作者: chz0223 时间: 2009-1-1 08:41:38

我也在做,不过每次都要错十来处...

作者: 1点50分 时间: 2009-1-1 08:45:50

版主请问听写60s 有用吗？我感觉他又好多专业词汇
另外听写完了是不是应该跟读？跟读到什么程度呢？谢谢

作者: 阿泰 时间: 2009-1-1 08:47:34 标题: 回复 #20 1点50分的帖子

读到能熟读下来为标准

另外要把练习过的反复听

作者: 1点50分 时间: 2009-1-1 10:29:51 标题: 回复 #21 阿泰的帖子

o 谢谢版主哪听托福材料Barron比较好呢还是这个60s 呢？
还有我现在听力总抓不住重点请您指点~~

作者: 阿泰 时间: 2009-1-1 12:22:26 标题: 回复 #22 1点50分的帖子

都要练习

总是一个过程，慢慢来

作者: 1点50分 时间: 2009-1-1 14:17:02 标题: 回复 #23 阿泰的帖子

我是第一次考 3月22考不知道时间够不我一直在听写老托谢谢你

作者: 阿泰 时间: 2009-1-1 15:25:29

时间还是够的

作者: 阿泰 时间: 2009-1-2 10:29:56

有难度的http://www.sciam.com/podcast/epi ... mic-course-09-01-01

不帖文本了，大家先练习，帖感想啊;d:

作者: nickey0809 时间: 2009-1-2 15:25:54 标题: 回复 #18 阿泰的帖子

听抄了啊，这不过刚开始听困难的，很多专业词听不出来

作者: nickey0809 时间: 2009-1-2 15:34:32 标题: Completing the Cosmic Course

http://www.sciam.com/podcast/epi ... mic-course-09-01-01

没听出来的
zip 迅速划过
average speed 连读听了好多遍都没听出来，最后看答案了
Kepler 猜到了但不会拼
perihelion 近日点
aphelion 远日点
tilt n. 倾斜;
the tilt of the Earth’s axis 连读了……
发现自己听数字的本领都退化了，那几个数字听了好几遍才记下来
读得时候也是在数字上停下来

[ 本帖最后由 nickey0809 于 2009-1-2 15:41 编辑 ]

作者: 阿泰 时间: 2009-1-2 17:22:02 标题: 回复 #28 nickey0809 的帖子

这个有难度，呵呵

作者: hyacinth 时间: 2009-1-3 08:27:44

反复听之前不要熟读文本。。。

否则就练不出来了。。。

作者: chineselady 时间: 2009-1-3 12:38:39

Happy New Years! Don’t feel bad about taking today off after all you travel a far and I am mot going talk about the trip home from the party last night. According to an essay just being plan it being on earth last year. You’ve zip a584000 million miles around the sun and get back where you were last nigh, and the average speed is about 67 thousands miles per hour. Again, not talking about the drive home last night. Of course, the trip was not perfect circle as calendar shows the earth’s obit is in a lips with the sun is one of two fogo points. The… figured out the plan goes faster when it….nearer the sun, then it……….further distance, which would explain summer…..
拉倒吧，不写了

作者: 阿泰 时间: 2009-1-3 12:45:44 标题: 回复 #31 chineselady 的帖子

这个确实是有难度啊;d:

作者: 阿泰 时间: 2009-1-3 14:49:25

Infecting Mosquitoes Before They Infect Us

09年1月3日 http://www.sciam.com/podcast/epi ... re-they-in-09-01-02

Mosquitoes carry nasty diseases—dengue fever, west nile, malaria. But the microbes that cause those diseases don’t attach themselves to the mosquitoes and then immediately latch onto their next victim. They need time to grow and replicate in the mosquito before migrating to the bug’s salivary glands. For example, the dengue fever virus takes about two weeks to incubate.

So researchers from the University of Queensland in Australia and Central China Normal University are looking at a way to shorten the lives of mosquitoes—and thus curtail their disease-transmitting ability.

Researchers worked with a bacterial parasite called Wolbachia that infects numerous insect species. They spent three years adapting it to infect the Aedes aegypti mosquito, which carries dengue fever. It cut the lives of the mosquitoes by more than half. Those results were reported in the January 2nd issue of the journal Science. The scientists say that because Wolbachia shortens a mosquito’s life, the insects are that much less likely to pass on the diseases they carry. So a relatively inexpensive and effective human disease prevention program could be to mass-infect mosquitoes with Wolbachia. Which should make the medical community buzz.

难词：dengue fever west nile latch onto

作者: 阿泰 时间: 2009-1-3 14:51:36

这个怎么翻译？

Which should make the medical community buzz.

作者: chineselady 时间: 2009-1-3 17:16:35 标题: 回复 #34 阿泰的帖子

应该提供上下文吧，还有啊，老大你下面的图片是否可以换换哦，老掉牙的电视剧;d: 还不如贴篱笆女人狗的，经典啊;d: ;d:

作者: chineselady 时间: 2009-1-3 17:42:21

因此，相对低价而又有效的预防疾病的措施用在了携带大量疾病的蚊子身上，这将使各地的社区诊所暂时空闲下来。BUZZ有闲谈的意思，我理解是蚊子传播疾病被控制下来，诊所也就没那么忙，所以没事就扯谈被。对不？

作者: 阿泰 时间: 2009-1-3 17:50:06

BUZZ在这里这么翻译吗？;d:

韦伯斯特的词典的解释：
1 : to make a low continuous humming sound like that of a bee
2 a : MURMUR, WHISPER b : to be filled with a confused murmur *the room buzzed with excitement*
3 : to make a signal with a buzzer
4 : to go quickly : HURRY *buzzed around town in a sports car*; also : SCRAM usually used with off

觉得第二个意思 to be filled with a confused murmur 有点你说的那个意思，但是也不全是吧

还是不大明白

作者: chineselady 时间: 2009-1-3 18:55:52

只是推测加猜测而已:o

作者: xlwxxy 时间: 2009-1-3 20:26:54

scientific 拿来记单词不错哈.

作者: 阿泰 时间: 2009-1-3 21:19:21

:rolleyes: 谁来解释一下？

作者: 阿泰 时间: 2009-1-3 23:39:54

UP

呼唤达人解答

作者: mpromanus 时间: 2009-1-4 01:30:40

非达人解答：

make the medical community buzz = make the talk in the medical community = 成为医界的谈资

buzz是形容很多人都在同时谈论xx事时候一片嗡嗡的声音 - 所以能让很多人同时都在嗡嗡地谈论的事情，就是谈资，最近发生的重大新闻啊重要发现啊，都可以成为buzz~就像俺公司宣布全球裁员时全会议室嗡声四起的样子~

[ 本帖最后由 mpromanus 于 2009-1-4 01:42 编辑 ]

作者: 000 时间: 2009-1-4 02:50:24

原帖由 chineselady 于 2009-1-3 12:38 发表
Happy New Years! Don’t feel bad about taking today off after all you travel a far and I am mot going talk about the trip home from the party last night. According to an essay just being plan it ...

有水手潜力~~~暂最后一句~~拉倒不写了~~哈哈~~

作者: 阿泰 时间: 2009-1-4 08:08:44 标题: 回复 #42 mpromanus 的帖子

正解！

最后一句晕！;d:

作者: 阿泰 时间: 2009-1-4 23:47:23

UP

作者: 匿名 时间: 2009-1-4 23:53:52 标题: 回复 #45 阿泰的帖子

这个我也参加

作者: 阿泰 时间: 2009-1-6 14:53:03

January 5, 2009 Milky Way Now in Larger Size!
http://www.sciam.com/podcast/epi ... arger-size-09-01-05
We residents of the Milky Way should have a little extra skip in our step today. Turns out our home galaxy is much bigger and moving a lot faster than we previously thought. That’s what researchers from the Harvard–Smithsonian Center for Astrophysics reported January 5th at the meeting of the American Astronomical Society.

Older studies of our galaxy’s structure and motion used indirect measurements. But we can now use radio telescopes to directly observe certain features of the galaxy when we’re in very different places in our orbit around the sun. And using traditional surveying methods, such as triangulation, researchers came up with the new figures.

First, we’re moving about 600,000 miles per hour in our galactic orbit, a lot zippier than the old estimate of 500,000. And the Milky Way’s total mass is about half again as much as we used to think. Which means we’re about as massive as the nearby Andromeda Galaxy. The Milky Way’s bigger mass does mean a greater chance of a gravity-driven collision with Andromeda. But if that clash occurs, at least now we’re in the same weight-class.

—Steve Mirsky

一个词zippeier 更加敏捷的，迅速的

作者: 阿泰 时间: 2009-1-6 15:09:31

January 6, 2009 Dead Stars Tell of Rocky Planets
http://www.sciam.com/podcast/epi ... ky-planets-09-01-06

If we want to learn more about our planet and other planets in the universe, we can get some help from stars that are long dead and gone. That’s what U.C.L.A.’s Michael Jura said at the American Astronomical Society meeting January 5th. His team used observations from NASA’s Spitzer Space Telescope to investigate dead white dwarf stars.

Dust and debris swirl around young stars. The pieces clump together to form asteroids and bigger planets. When a star like our sun finally dies, it blows itself up, bright red. Then it shrinks down into a skeleton of its former self—a white dwarf. The gravitational pull of these white dwarfs can attract nearby asteroids that then get pulverized.

Eight different white dwarf systems were examined. In the surrounding asteroid dust, there was a mineral similar to olivine, which is common here on Earth. And there wasn’t much carbon, also similar to the make-up of asteroids and rocky planets in our own solar system. The results suggest that the same materials that make up Earth and our solar system's other rocky bodies could be common in the universe. As could be rocky planets themselves. An insight for which we can thank dead stars.

—Cynthia Graber

难词：Spitzer pulverized

作者: chineselady 时间: 2009-1-7 15:27:13

We resident of the Milky Way should have a little extra sip hour today turn out our home galaxy is much bigger and moving a lot faster than we previously thought. That was the research from Harvard …..reported in January 5th at the meeting of America astronomic society. Older study of our galaxy structure motion/emotion use interact measurement but we can now use the radio telescope to rightly observe certain feature of galaxy when we were in every different places in our orbit around sun and using traditional serving measure such as triangulation research came up with new figures. First, we’re moving 6000 miles per hour in our orbit….than 600.5000 old and the Milky Way is total mess about half again as much as we used to think, which means…….. nearby again. The Milky Way is mess doesn’t mean

每次听到最后2句都听的直恶心:vomit: :vomit:

[ 本帖最后由 hyacinth 于 2009-1-11 01:17 编辑 ]

作者: chineselady 时间: 2009-1-7 15:27:48

We resident of the Milky Way should have a little extra sip hour today turn out our home galaxy is much bigger and moving a lot faster than we previously thought. That was the research from Harvard …..reported in January 5th at the meeting of America astronomic society. Older study of our galaxy structure motion/emotion use interact measurement but we can now use the radio telescope to rightly observe certain feature of galaxy when we were in every different places in our orbit around sun and using traditional serving measure such as triangulation research came up with new figures. First, we’re moving 6000 miles per hour in our orbit….than 600.5000 old and the Milky Way is total mess about half again as much as we used to think, which means…….. nearby again. The Milky Way is mess doesn’t mean

[ 本帖最后由 hyacinth 于 2009-1-11 01:19 编辑 ]

作者: chineselady 时间: 2009-1-7 15:28:40

老大！！！！！！！！

作者: chineselady 时间: 2009-1-7 15:29:31

We resident of the Milky Way should have a little extra sip hour today turn out our home galaxy is much bigger and moving a lot faster than we previously thought. That was the research from Harvard …..reported in January 5th at the meeting of America astronomic society. Older study of our galaxy structure motion/emotion use interact measurement but we can now use the radio telescope to rightly observe certain feature of galaxy when we were in every different places in our orbit around sun and using traditional serving measure such as triangulation research came up with new figures. First, we’re moving 6000 miles per hour in our orbit….than 600.5000 old and the Milky Way is total mess about half again as much as we used to think, which means…….. nearby again. The Milky Way is mess doesn’t mean

作者: 阿泰 时间: 2009-1-7 15:30:16 标题: 回复 #50 chineselady 的帖子

发了两遍

作者: chineselady 时间: 2009-1-7 15:31:32

We resident of the Milky Way should have a little extra sip hour today turn out our home galaxy is much bigger and moving a lot faster than we previously thought. That was the research from Harvard …..reported in January 5th at the meeting of America astronomic society. Older study of our galaxy structure motion/emotion use interact measurement but we can now use the radio telescope to rightly observe certain feature of galaxy when we were in every different places in our orbit around sun and using traditional serving measure such as triangulation research came up with new figures. First, we’re moving 6000 miles per hour in our orbit….than 600.5000 old and the Milky Way is total mess about half again as much as we used to think, which means…….. nearby again. The Milky Way is mess doesn’t mean......
每次听到最后2句都恶心的:vomit: :vomit:

作者: chineselady 时间: 2009-1-7 15:33:05 标题: 回复 #53 阿泰的帖子

字体不对:eek: :confused:

作者: 阿泰 时间: 2009-1-8 09:45:56

January 7, 2009 Reflected Light Disrupts Animal Behavior

Man-made light sources can really throw animals for a loop. Moths can't tear themselves away from lightbulbs, and newly hatched sea turtles often shun moonlit ocean waves for the bright lights of inland cities. But a study in January's issue of the journal Frontiers in Ecology and the Environment says direct light sources are only part of the problem.

Light that reflects off shiny urban surfaces, like roads, parking lots and buildings, has an equally devastating power to attract. That's because such polarized light means one thing to most animals—water. For example insects like dragonflies make nocturnal flights to lay their eggs using horizontally polarized light as a beacon. That light might bring them to a stream or pond, but a well-lit interstate is equally alluring. If enough insects lay eggs on the road instead of in the water, the entire food web can be disrupted.

But there are ways to dim our influential lights, the scientists say. Bugs are less attracted to roadways with white hatch marks on the pavement. And light-colored curtains can keep birds from slamming into dark buildings. Simple fixes, really, to keep basic instincts from turning into fatal attractions.

作者: candyrealme 时间: 2009-1-8 20:21:33

在做听写啊？啊泰，你没考的吗？

作者: 阿泰 时间: 2009-1-8 20:24:46 标题: 回复 #57 candyrealme 的帖子

是啊，在做听写

我考了啊

版主要参与版内活动的

我就做做这个吧，提高提高自己

作者: 梦想在望2008 时间: 2009-1-9 08:58:02

请问在那里可以获取最近文章的链接？

作者: 阿泰 时间: 2009-1-9 09:08:41 标题: 回复 #59 梦想在望2008 的帖子

用itunes就可以了

作者: 阿泰 时间: 2009-1-9 09:25:12

January 8, 2009 Body Makes Own Aspirin Compound

Aspirin is a popular painkiller, and chances are you have some in your medicine chest right now. You might even have some in your flesh-and-blood, put-a-shirt-on-it chest. Because a new study suggests that humans can make their own salicylic acid, which forms the bulk of aspirin’s active ingredient.

Scientists at Scotland’s National Health Service previously observed that people can have salicylic acid in their blood even if they haven’t recently swallowed an aspirin. Vegetarians have really high concentrations, which makes sense, given that plants make salicylic acid, so fruits and veggies are full of it. But their recent study suggests that not all of the chemical comes from the diet, because humans can take a precursor molecule and turn it into salicylic acid—results published in the Journal of Agricultural and Food Chemistry.

The researchers say that people might make salicylic acid to fight inflammation or disease…which would also make sense…because plants make the stuff to fight off infections. In fact, a recent study published online in the journal Nature shows how calcium released at the site of an infection tells plants to ramp up production of the protective compound. Just Mother Nature’s way of saying, “Make two aspirin and call me when you flower.”

难词： salicylic acid

有问题：
1什么是flesh-and-blood, put-a-shirt-on-it chest.
2“Make two aspirin and call me when you flower.” 这个aspirin为啥不加s

作者: 梦想在望2008 时间: 2009-1-9 10:58:11

楼主如果我没有ITUNE在电脑里怎么半》？谢谢

作者: 阿泰 时间: 2009-1-9 11:03:07

pls see here

http://www.sciam.com/podcast/podcasts.cfm?type=60-second-science

作者: 梦想在望2008 时间: 2009-1-9 11:41:16 标题: 回复 #63 阿泰的帖子

多谢！

作者: bluebird188 时间: 2009-1-9 16:14:14

salicylic acid是水杨酸，版主另两个问题我也不会。Make two aspirin and call me when you flower这应该是个谚语吧，准确的中文意思为啥。才开始准备听这个合不合适？

作者: 阿泰 时间: 2009-1-9 16:24:04 标题: 回复 #65 bluebird188 的帖子

我列出来的难词，是一般在T词典中很少收录但是考试机率比较大的生词:funk:

作者: 阿泰 时间: 2009-1-10 16:51:25

January 9, 2009 Male and Female Mosquitoes Synchronize Buzz

Have you ever turned off your lights and heard [mosquito buzz]? To you it’s a sound that signals bites in the night. But to a male mosquito it’s a love song, produced by a female seeking a mate. Now scientists from Cornell University find that males who answer that call join in the serenade. And the two sing in harmony as they check each other out. [Mosquitoes buzzing.]

Working with Aedes aegypti mosquitoes—the pests that carry dengue fever—the scientists tethered individuals to a special insect pin and allowed them to fly past a potential mate. They found that females on their own whine at a frequency of 400 Hertz. Whereas single males buzz at about 600. But when the two come together, they perform a duet in which the beat of their wings reaches a frantic1200 hertz. [Tone.] Isn’t it beautiful? Mosquitoes seem to think so. Which is a surprise, because researchers had previously thought that female mosquitoes were deaf. But the Cornell scientists found that mosquito ears are good up to 2000 hertz, results published in the January 9th issue of Science. Maybe that harmonizing could be exploited for controlling mosquito populations. Releasing into the wild males that can’t sing could be a real buzz-kill.

难词：serenade dengue fever

作者: glamorousky 时间: 2009-1-10 17:45:53

1 血肉之躯第二个是否表示包裹胸腔的肌肉两个都是指人体
2 plural ：aspirin or aspirins

作者: 阿泰 时间: 2009-1-10 18:23:56 标题: 回复 #68 glamorousky 的帖子

1第一个意思我知道，第二个是啥用法

作者: glamorousky 时间: 2009-1-10 19:18:55 标题: 回复 #69 阿泰的帖子

我理解的是包裹胸腔的那不就是血肉么也就是说也是血肉之躯的意思

作者: 阿泰 时间: 2009-1-10 20:49:14 标题: 回复 #70 glamorousky 的帖子

那为什么两个形容词一起用？

作者: 阿泰 时间: 2009-1-10 20:49:34 标题: 回复 #71 阿泰的帖子

还是一个意思

作者: glamorousky 时间: 2009-1-10 21:22:39 标题: 回复 #71 阿泰的帖子

为什么不捏~~
for instance 您是一个好问的，问题多多的人两个adj喜欢在一起就让他们在一起啊

作者: 阿泰 时间: 2009-1-10 21:27:05 标题: 回复 #73 glamorousky 的帖子

;d:

作者: abdmen 时间: 2009-1-11 11:09:00

难词是考试几率比较大的词？
那朕不是要撞墙去了？
ibt语言水平考试，不会有很怪癖的词，即使有也不影响做题的..

作者: 阿泰 时间: 2009-1-11 11:20:41 标题: 回复 #75 abdmen 的帖子

听力、口语部分的专有名词做适当补充

作者: abdmen 时间: 2009-1-12 08:39:33 标题: 回复 #76 阿泰的帖子

您在考试中若遇到了准备过的难词告诉我们哈！

作者: 阿泰 时间: 2009-1-12 08:45:52

那个神经元细胞核文艺复兴啥的不都是难词吗:rolleyes:

作者: frank_chow 时间: 2009-1-12 09:04:40

阿泰原来是帮自己听写……不过有链接的，版友也可以下载……

作者: 阿泰 时间: 2009-1-12 09:15:26 标题: 回复 #79 frank_chow 的帖子

:rolleyes: 难道你有意见不成？

作者: wuwenlan 时间: 2009-1-12 09:54:59 标题: 回复 #80 阿泰的帖子

斑竹，我可以跟着来吗?????
或者接下来的工作，我应该怎么进行呢？？？？有什么好的提议吗

先thank you 一下

作者: 阿泰 时间: 2009-1-12 09:59:15 标题: 回复 #81 wuwenlan 的帖子

可以啊;d:

你看着有更新就可以按前面的模板来做

关键是要坚持下去，做到考试的那一天

这个是提高自己硬实力的东西，好好练

作者: abdmen 时间: 2009-1-12 10:40:48

原帖由阿泰于 2009-1-12 08:45 发表
那个神经元细胞核文艺复兴啥的不都是难词吗:rolleyes:

这些考过的就不用你说了吧:L

作者: 阿泰 时间: 2009-1-12 16:30:28

January 12, 2009 Judging A Book By Its Genomes
http://www.sciam.com/podcast/epi ... ts-genomes-09-01-12

Thousands of medieval European books survive to this day. Authors and scribes carefully handwrote the works on parchments made of animal skins. But the writers didn’t always bother to sign and date their works. So we had no way of knowing where and when most of the documents are from. Until now.

Researchers at North Carolina State University have demonstrated that they can reliably extract DNA samples from such parchments. Each manuscript offers up, they say, a wealth of genetic information, because as many as a hundred animals contributed skins for one book.

The scientists propose recording DNA data from all books for which we do have a reliable date and place of origin. These reference samples would create a DNA library of dates and locations. Then the mystery manuscripts could be compared against that DNA database.

The North Carolina investigators are presenting the technique for dating old manuscripts at the upcoming annual meeting of the Bibliographical Society of America. And they’re still working on improved techniques to harvest DNA while doing minimal damage to the original priceless parchments. A way to further illuminate those illuminating books.

难词： parchments Bibliographical

作者: 阿泰 时间: 2009-1-13 15:15:20

January 13, 2009 Pterodactyls' Ptough Ptakeoffs

http://www.sciam.com/podcast/epi ... -ptakeoffs-09-01-13

A bird in flight is a thing of beauty. Even their takeoffs and landings usually look effortless. But pterodactyls? Well, that’s another story. Scientists have long assumed that pterodactyls, also called pterosaurs, flew just like birds, and launched themselves using their hind legs. Now a biologist at Johns Hopkins says that can’t be true. Instead, he says that pterosaurs needed all four limbs for liftoff.

Modern birds use their legs to launch and their wings to stay aloft. Once they’re in the air, their hind limbs are essentially payload, carried along for the ride. That arrangement presents a problem. A bird’s legs have to be muscular enough to get Tweety off the ground, but not so big that they drag him down. That limits how big a bird can be. Some pterosaurs, on the other hand, were the size of a giraffe. And looking at the bones of three different pterodactyl species, the Hopkins scientist concludes that there’s no way those legs were strong enough to get that bulk airborne. Instead, he says a pterosaur used all four limbs, leapfrogging forward on its knuckles, to propel itself into the air. Maybe not a thing of beauty. But it must have been something to see.

难词：giraffe

作者: 阿泰 时间: 2009-1-13 21:06:43 标题: 回复 #85 阿泰的帖子

才想起来，这个TITLE的三个单词竟然全都不认识！:rolleyes:

作者: mpromanus 时间: 2009-1-14 10:01:47 标题: 回复 #86 阿泰的帖子

第一个字是翼手龙，后面两个是为了押头韵（alliteration）弄出来的自造词。pterodactyl的第一个p字是不发音的，以此规则押头韵，加上后面两个字，读起来是terodactyl's tough takeoff，头韵押t，写起来是pterodactyl's ptough ptakeoff，头字押p。读写都能押上头韵，还因为首字不发音所以在听广播的角度来说完全不影响理解 - 是个很不错的文字游戏。

作者: rose365 时间: 2009-1-15 10:20:14

原帖由 mpromanus 于 2009-1-14 10:01 发表
第一个字是翼手龙，后面两个是为了押头韵（alliteration）弄出来的自造词。pterodactyl的第一个p字是不发音的，以此规则押头韵，加上后面两个字，读起来是terodactyl's tough takeoff，头韵押t，写起来是pterod ...

admire~~~

作者: 阿泰 时间: 2009-1-17 22:23:40

January 15, 2009 Getting a Teeny-Tiny Grip

http://www.sciam.com/podcast/epi ... -tiny-grip-09-01-15

Forget the scalpel, researchers at Johns Hopkins University have created a tool that can move easily through tissue, potentially making biopsies much less invasive. They call it a "microgripper." And the wireless, dust-particle sized device is able to grab single living cells from hard-to-reach places. Their report appeared in the online early edition of the Proceedings of the National Academy of Sciences.

The researchers assembled out of tiny metallic plates a "palm" with six three-jointed "fingers." This metal hand is truly tiny: just one-tenth of a millimeter in diameter. In the lab, scientists used magnets to pilot the microgripper through a tube of animal tissue and up to a living cell. Then, by applying heat as a trigger, the joints softened and the "fingers" closed around the cell.

The researchers hope the device will have applications beyond cell retrieval. It could be used to manufacture microchips or deliver medicine to specific locations in the body. But first, they must refine its motor skills. Right now, the microgripper can only grab—it can’t let go. And we're still years away from shrinking Raquel Welch to go in after it.

作者: 阿泰 时间: 2009-1-17 22:24:58

January 16, 2009 Mars Is Alive! (Geologically, Biologically or Both)

http://www.sciam.com/podcast/epi ... y-biologic-09-01-16

There’s definitely methane on Mars—and there are seasonal variations of how much is being released into the thin Martian atmosphere. Which means that Mars is still active geologically. Or that deep underground, something is or was alive. Or both. NASA and university scientists report the finding in the January 16th issue of the journal Science.

Researchers studying the Martian atmosphere discovered and measured methane levels over the last few years, using telescopes with infrared spectrometers. These instruments identify chemical compounds by analyzing their unique light absorption properties.

They found that Mars methane is being released as concentrated plumes at specific latitudes. Such plumes could come from various kinds of geological events. Underground bacterial communities could also be producing the methane. Or now-extinct living systems could have produced the methane long ago, with it only now being released through pores or fissures created by seasonal temperature variations.

On earth, 90 percent of the methane in the atmosphere comes from the biochemical activity of life. The rest is produced by geochemical processes. The Mars methane’s specific isotopic makeup could reveal whether its origins are biochemical or geological.

作者: 阿泰 时间: 2009-1-20 20:24:55

January 19, 2009 Gene Lowers Infection Chance By Changing Behavior
http://www.sciam.com/podcast/epi ... nce-by-cha-09-01-19

A new study with worms shows that some have a gene that helps them stave off infections. Not through some kind of biochemistry—but by changing their behavior.

Scientists were studying two strains of the roundworm C. elegans, one strain that is commonly used in the laboratory, another that was isolated in Hawaii. The laboratory strain got fewer infections than the Hawaiian strain. That’s because the lab worms have a particular version of a gene called NPR-1. But the way the gene works is a bit of a surprise. You might think that a gene involved in fighting infections must somehow enhance an animal’s immune response.

But you would be wrong. Because a current study, published in the January 16th issue of Science, shows that’s not the case. Instead, the scientists showed that the NPR gene found in healthier worms made them picky about their location. They stayed clear of places where oxygen is scarce. As it happens, those are the neighborhoods where bacteria hang out, including the bugs that can cause disease. So the gene made the worms prefer germ-free locales.

So, take a tip from a worm. If you want to avoid what’s out there this winter, just don’t go out there.

作者: 阿泰 时间: 2009-1-20 20:25:49

January 20, 2009 Bacteria Can Use Viruses To Spread Toxin Gene
http://www.sciam.com/podcast/epi ... -to-spread-09-01-20

For years, scientists and physicians have been up in arms about the rise in antibiotic resistance. Seems that many bacteria, devious buggers that they are, are able to share genetic information—including, say, the instructions for destroying penicillin. Well, if that’s not bad enough, scientists from the NYU School of Medicine have found that some bacteria can use viruses to help them pass along the recipe for their favorite toxin, results published in the journal Science.

Like humans, bacteria are also prone to infection by viruses. And most of these viruses—called bacteriophage, or phage for short—make their bacterial victims sick. Or even dead. But in the laboratory, the scientists discovered that Staphylococcus aureus, the bug that causes toxic shock syndrome among other things, can actually co-opt phage, using them to shuttle the gene for toxic-shock toxin to another bacteria, in this case Listeria. That’s doubly nasty, because Listeria on its own causes food poisoning, so if it added toxic shock to its repertoire, well, that would be one seriously bad bug. Whether Staph aureus can pull off this stunt outside the lab’s not clear. But in this particular battle, ya gotta hope the viruses come out on top.

作者: 阿泰 时间: 2009-1-22 20:35:28

January 21, 2009 "We Will Restore Science to Its Rightful Place"

http://www.sciam.com/podcast/epi ... o-its-righ-09-01-21

Pres. Barack Obama:

“Our health care is too costly…and each day brings further evidence that the ways we use energy strengthen our adversaries and threaten our planet…

“We will build the roads and bridges, the electric grids and digital lines that feed our commerce and bind us together. We will restore science to its rightful place and wield technology's wonders to raise health care's quality and lower its costs. We will harness the sun and the winds and the soil to fuel our cars and run our factories. And we will transform our schools and colleges and universities to meet the demands of a new age…

“Our challenges may be new, the instruments with which we meet them may be new, but those values upon which our success depends, honesty and hard work, courage and fair play, tolerance and curiosity, loyalty and patriotism—these things are old. These things are true.”

作者: 阿泰 时间: 2009-1-22 20:41:51

January 22, 2009 Does fMRI See the Future?
http://www.sciam.com/podcast/epi ... the-future-09-01-22
For decades, scientists have used an imaging technique called functional Magnetic Resonance Imaging, or fMRI, to chronicle the brain in action. But a study in the January 22nd issue of Nature suggests that fMRI might show more than what the brain is doing—it might reveal what the brain’s about to do.

fMRI studies assume that blood flow in the brain correlates with neuronal activity. Active brain cells need nutrients, which are brought to the cells by freshly oxygenated blood. But in the new study, scientists found that fMRI also detects increased blood flow in brain regions that aren’t active—but that may be in the near future.

The researchers trained monkeys to perform a specific visual task. And they found that, even when the animals were sitting in the dark waiting for the test to begin, fMRI nevertheless revealed an increased blood flow to the monkeys’ visual cortex.

The study suggests that fMRI data may be a lot more interesting than we thought. Scientists may be looking at their imaging data in a way that’s too simplistic. And fMRI may not be measuring exactly what we thought it did. What will they think of next? Maybe fMRI can tell.

作者: 阿泰 时间: 2009-1-27 19:38:49

South Asia Brown Cloud Is Homemade
http://www.sciam.com/podcast/epi ... s-homemade-09-01-26
There's a huge, gunky brown cloud that lingers over south Asia and the Indian Ocean each winter. It’s been known to cause respiratory diseases and even cancers in India and China. But scientists didn't really know what was in it. Now they do. Researchers from Stockholm University and colleagues published the results in the January 23rd issue of the journal Science.

The cloud contains black particles called carbonaceous aerosols—basically carbon soot. The team used radiocarbon analysis to figure out what parts of the soot come from biomass and what comes from fossil fuels. Biomass typically comes from burning forests for agriculture or burning wood in stoves. And fossil fuel particulates come from sources such as diesel engines or burning coal.

The investigators were surprised to discover that a large percentage of the soot, from almost half to two-thirds, comes from burning biomass like wood and dung for cooking and heat, rather than from coal power plants. Scientists say the good news is that these particles only remain in the atmosphere for a few days or weeks at a time. So once societies can figure out how to reduce biomass burning, that brown sooty haze—and the illnesses it causes—might disappear.

作者: 阿泰 时间: 2009-1-27 19:46:36

Eat Less, Remember More
http://www.sciam.com/podcast/epi ... ember-more-09-01-27
You may have noticed that as you get older, you start forgetting more stuff: like, where you left your glasses, or the names of your children. Well, if you’re fed up with those senior moments, put down that pastrami sandwich. Because a new study, published in the January 27th issue of the Proceedings of the National Academy of Sciences, shows that cutting calories actually improves memory in older folks.

Calorie restriction lets lab animals live longer. And these hungry critters tend to be healthier, too: with lower cholesterol, better insulin sensitivity, and even slower cognitive decline. But these diets can be draconian. And it hasn’t been clear whether they’d offer the same benefits to people.

In this study, scientists asked 50 elderly women to cut the number of calories they consumed by a third. After three months, the researchers found that the dieters were not only slimmer, but they were better than they had been at memorizing lists of words. They also had better insulin levels and fewer markers of inflammation, which suggests that keeping those things under control may help keep the brain fit. It’s one of the cruel ironies of aging: if you want to remember your favorite restaurants, the less you should eat at them.

作者: 阿泰 时间: 2009-1-29 16:42:59

January 28, 2009 Horning In on Triceratops
http://www.sciam.com/podcast/epi ... riceratops-09-01-28
Triceratops, as the name suggests, were huge dinosaurs adorned with three horns on their heads. Scientists now say those horns may have been a sort of battle bludgeon. Andrew Farke is a curator at the Raymond M. Alf Museum of Paleontology in California. He became curious about that headgear. Farke and colleagues wanted to investigate whether Triceratops fought each other with their horns. Which posed a problem: obviously, we can’t go back in time to watch the animals interact. So the researchers resorted to some techniques out of a Cretaceous CSI.

They examined more than 400 museums specimens of Triceratops and another closely related one-horned dinosaur called Centrosaurus. They scanned the skulls for injuries around where Triceratops might have locked horns and wrestled. Their assumption was that if the horns were just for display, both species would show few scars.

But the Triceratops had 10 times more skull injuries than their Centrosaurus cousins. The most likely explanation is that they probably jabbed each other in the head while fighting. The researchers published their findings in the journal Public Library of Science ONE. They also caution that the horns could have served more than one purpose—perhaps fighting and flaunting.

作者: 阿泰 时间: 2009-1-29 16:49:14

补January 23, 2009 Crickets Con Connubial Conquests with Chemistry
http://www.sciam.com/podcast/epi ... nquests-wi-09-01-23
As Valentine’s day approaches, remember, it’s the thought that counts. Just ask a decorated cricket. Because according to a study published in the January 21 issue of the journal Biology Letters, the nuptial gift that male crickets use to woo their women is just a handful of amino acids—in a whole lotta water.

Many insects use a food offering to win over a potential mate. For crickets, the giftbag serves to distract the female while the actual sperm transfer takes place. As long as she’s busy eating, she won’t reach around and remove that little packet of swimmers. And the longer she feeds, the more sperm will make it through. And, presumably, the more little crickets that male will sire.

But the male, of course, wants to get the biggest bang for his buck. So his goal is to minimize what he lays out in his token of appreciation. The solution? The cricket’s gift contains a small sampling of amino acids, mostly nonessential glycine, and 84 percent water. But those amino acids act as an appetite stimulant, which causes the female to spend more time enjoying her nutritionally empty snack. It’s a cheap gift, but it works. Because nothing says “be mine” like a gooey glob of glycine.

作者: saavedro 时间: 2009-1-29 17:09:25

瞻仰膜拜中~~~~ 你等我先把基础实力提升后就跟你走哈~~~

作者: saavedro 时间: 2009-1-29 17:09:44

你现在每天都坚持听写一篇吗？

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