Scientific American 60 Second Science听抄（有音频文件）

kevinliu6883UID: 2338522

Some thing is either a gas or liquid or solid, right? Well not so fast.  Ionized gas, or plasma behaves differently enough to be thought a separate form of matter. And some everyday things can cross the line. Saliva, blood, even toothpaste are viscoelastic materials. They can have the viscous behavior of a fluid or the elastic behavior of a solid. And a simple experiment in the Journal of Physical Review Letters called it material’s split personality. Penn State researchers used mixture of water, sulfur and organic salt to make viscoelastic material. They then pass a cylinder through the mix. If the cylinder moves slowly, the mixture acts like a fluid; a little faster though, the cylinder actually cuts the mixture. Faster still you can get an even tearing. Cutting tearing can spontaneously heal, but it takes hours. Connect these sorts of states of material with interesting fact that the strain when acting like a solid is basically the same as its surface tension when acting like a liquid. That blood is sticker than liquid water is that they say a solid conclusion.

[ 本帖最后由 kevinliu6883 于 2007-6-5 02:13 编辑 ]

woodmanUID: 161906

公告:loveliness:

gter扩大我的上传附件的权限了，以后可以传音频了，呵呵，为方便各位听友，以后每天我都会上传的（包括考试这一段每天都会准时上传音频），大家放心好了。
5月和6月的音频刚才我已全部上传了，大家在帖子里去下吧。
kevinliu6883很勤奋啊，继续加油，呵呵
我睡觉去了，困死了，呵呵

bfyakumoUID: 2326969

:) 万分感谢传音频的同学。。。:)

fighting...

不过我刚听到13页。。。:mad

[ 本帖最后由 bfyakumo 于 2007-6-5 09:18 编辑 ]

woodmanUID: 161906

音频传上

forerunnerUID: 2234967

Who doesn't like a nice tightly? sound duet,well you might not if you are a bird calling? magpie-larks from Australian. Andyou heard a couple of other magpie-larks singing in highly precise duet. That'sbecause well sound duet indicate to other species members that the singing dualis working as coordinated team to defend territory. That's according theresearch publish in the June 5th issue of journal Current Biology. Other animalsdo similar things lines, chimps wolves they all wow or howl in choruses deter rivalsin their big group. The magpie-larks make their standard with some complex rhythms,one bird sings the first the two notes and the second bird hear sounding like abit farther away answers with? quick retorted. Weaker teams when you have justheard overlap or leave gaps between notes. The team singing improves the longerthey work together and that tune maybe a mark for their effectiveness as a team.


please check out......:handshake:)

forerunnerUID: 2234967

[ 本帖最后由 forerunner 于 2007-6-5 14:19 编辑 ]

kevinliu6883UID: 2338522

Who does not like nice tightly sound duet? Well you may not, if you were a bird called Magpie-lark from Australia, and you heard a couple of other magpie-lark singing a highly precise duet. That’s because well sound duet indicates other species members. That singing duet is working as a coordinating team to defending territory. That is according to a research published in June 5th issue Journal of Current Biologists. Other animals do the similar things, lions, chimps, wolves, they woo, howl, courses to tell their rivals they are a big group. The magpie-lark makes make their stands with some complex wisdoms. One bird sings the first two notes, and the second bird hears and sings a big further away and answers the quick retort.
(high-low pitch repeats ….)
Weak team when you just heard over lap leave gaps between notes. The team singing improves as they longer work together. And the two may be a mark of the effect of this as a team.

[ 本帖最后由 kevinliu6883 于 2007-6-5 22:16 编辑 ]

H-KevinUID: 2182070

June 5


Who does not like the nice tightly song duet? well you might not if you were a bird call the magpie-larks from Australia, and you hear a couple of other magpie-larks singing in highly precise duet .that is because well song duet indicates another species members that they singing duel as  working in coordinative team to do defend  territory. that is called research published in June 15th issue of journal current biology .Other animal do similar things, lions, chimps, wolves, they all woo or howl course deter rivals in their big group, the magpie-larks make their stand with some complex rhythms one bird think the tune notes, and second birds hear sounding like a bit further away answers with the quick retorts. Weaker team when you just hear overlap leave gaps between notes the team singing improves the longer they work together and that tunemay be a mark for their effectiveness as a team.

[ 本帖最后由 H-Kevin 于 2007-6-5 23:36 编辑 ]

woodmanUID: 161906

音频传上

H-KevinUID: 2182070

June 6

Some bad news and good news are reported in the last week from world natural products periodical .First bad news, shark cut showed no benefits in the study with advance in long cancer patients. because shark cut doesn’t have blood vessels some research still arise that the substance probably contain  the blood vessel growth habitat which might be stop tumor from nutrition But results presented in American society on college to be no help Now, some better news. Another study report in the meeting found in American help cancer patients to suffer extreme and a mount of release. Those dependants a good sign was just as a placebo affect after coming trial   try to establish exact dosage. Finally, NIH found its study report in a college meeting found dietary flackcy was affective in stopping a growth of tumor. Flacks did reach now attach to another ails. flackcy also contain which mean tumor blood vessel growth.

forerunnerUID: 2234967

June 06, 2007: 60-Second Science
Mixed Results For Some Natural Products inCancer Trials
Research reported at the annual meeting ofthe American Society of Clinical Oncology had good news about ginseng andflaxseed, but not for shark cartilage.

Some bad news and good news reported in thelast week from the world of Natural Products therapeutic. First the bad newsshark cartilage ???agestric??? showed no benefits in the study with advance lungcancer patients. Because shark cartilage doesn’t has blood vessels some researches???stelrize??? the substance probably contain the blood vessels growth inhibiterwhich might help starved tumors with nutrients, but the result presented an theannual meeting of the American Society of Clinical Oncology found the sharkcartilage to be ???no help. Now some better news another study reported on themeeting found the American ginseng help cancer patient who suffer from extremefatigue and among the fatigue relieve was dose depend a good sign it wasn't justa placebo affect. An up coming trail will try to establish an exact dosage.Finally an NIH founded the study reported oncology meeting found that dietary flaxseedwas effective in stopping the growth of prostate tumors. Flaxseed is rich in omega-3fatty acids which may affect cancer calls attach to other cells, flaxseed alsocontain lingnan which may interfere with the tumor’s blood vessel growth.
please check out...:handshake:handshake:)

forerunnerUID: 2234967

welcome:handshake :handshake :handshake

gloria0707UID: 2339119

好像第一个地方是strike
第二个是some researchers still realized
第三个是be of no help
怎么这么难啊，看着听都没懂

kevinliu6883UID: 2338522

Some bad news and good news were reported in the last week from World Natural Products Therapeutic.
First bad news. Shotercut allergy showed no benefits on study with advanced lung cancer patients. Because shockcut does not contain blood vessels, some researchers still rise substance probably contains blood growth habitat which may help to stop tumor from nutrients. But results presented at annual meeting of American Society of Clinic Oncology found shotercut to be no help.
Now some better news. Another study reported from the meeting found American ginseng help cancer patients who suffer from extreme fatigue. The amount of fatigue relieved dependent on good sign was just perceivable effective. An up coming trial will try to establish an exact dosage.
Finally an NIH funded study reported at Oncology meeting found deitary flaxseed was effective in stopping the growth of prostate tumors.  Flaxseed is rich in omega-3 fatty acid which may affect cancer cells to attach other cells. Flaxseed also contains lignin which may interfere with tumor’s blood vessel growth.

kevinliu6883UID: 2338522

I doubt "still realize", though "still rise" is questionable.
This material is quite difficult to me. Forerunner's dictaion helped a lot.
I meet too many new words. list below may also be good to other learner.

Therapeutic  治疗剂
oncology 肿瘤学
dosage 剂量
gingseng 参
flaxseed 亚麻种籽
prostate 前列腺
lignin 木质素

[ 本帖最后由 kevinliu6883 于 2007-6-7 01:20 编辑 ]