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Sneezing, coughing, and sniffing. Welcome to winter and the common cold virus, a cure for which has eluded for years. But now a major breakthrough by scientists in Cambridge University brings that cure a step closer, as they've discovered a new way t

发表于:2018-12-11 / 阅读(54) / 评论(0) 分类 万花筒2010年

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? A new development in malaria: Plasmodium vivax, the worlds most common malaria parasite, now infects people previously considered to be resistant. Peter Zimmerman from Cas

发表于:2018-12-24 / 阅读(59) / 评论(0) 分类 Scientific American(二)月

This is Scientific American's 60 seconds science. I'm Ian Chant. Got a minute Secret identities aren't just for superheros anymore. Researchers have found that protein present in everything from amoebas to people is living the double life. Once it bi

发表于:2018-12-24 / 阅读(78) / 评论(0) 分类 Scientific American(七)月

Head to the mountains, and if the steep trails don't slow you down, the thin air will. There's less oxygen up thereso strenuous activity can leave you dizzy, out of breathor worse. But even though you're beat, biochemical processes are already busy a

发表于:2018-12-24 / 阅读(46) / 评论(0) 分类 2017年Scientific American(二)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Conditions such as mad cow disease are caused by abnormally shaped proteins, called prions. Prions spread by causing other, normal proteins to misfold

发表于:2018-12-24 / 阅读(54) / 评论(0) 分类 Scientific American(九)月

What Is Progeria? Progeria was first described in the nineteenth century. The mysterious disease is often thought of as premature aging. Children with progeria are normal for their first year of life, but then develop medical problems normally seen i

发表于:2018-12-31 / 阅读(48) / 评论(0) 分类 英语听力文摘 English Digest

The big dream for neuroscientists is to be able to watch our brain cells in action, in real time. Well, new research has maybe found the most promising tool yeta technique to watch individual neurons light up in response to a stimulus, like flipping

发表于:2019-01-02 / 阅读(122) / 评论(0) 分类 60秒科学

This is Scientific American's 60-Second Science, I am Cynthia Graber. This'll just take a minute. Imagine tweezers so fine that you could reach right into a cell and manipulate individual molecules. MIT researchers have created such a tweezer, using

发表于:2019-01-08 / 阅读(72) / 评论(0) 分类 Scientific American(七)月

The big dream for neuroscientists is to be able to watch our brain cells in action, in real time. Well, new research has maybe found the most promising tool yeta technique to watch individual neurons light up in response to a stimulus, like flipping

发表于:2019-01-08 / 阅读(84) / 评论(0) 分类 Scientific American(五)月

Almost all cells need iron to grow. Now, researchers have identified a link between the body's system for regulating iron and breast cancer. The discovery could help doctors predict the course of breast cancer disease and even help them decide the mo

发表于:2019-01-13 / 阅读(217) / 评论(0) 分类 VOA标准英语2010年(八)月

听力部分 Dictation: Please prepare your paper and pen. ______ knows ___ and ____ the ________ _______ _______________________ of ______. But ________ people were __________________. Today _________________________that ________________________ is,

发表于:2019-01-14 / 阅读(49) / 评论(0) 分类 王强口语 第二册

DNA analysis is a staple of crime scenesand crime shows, like HBO's The Night of or the old standby, CSI: We just need to get this to the DNA lab, confirm it's the victim's blood. And then, case closed. And it's not just for crime: DNA sequencing als

发表于:2019-01-20 / 阅读(116) / 评论(0) 分类 2016年Scientific American(九)月

a butterfly with glowing eyes Believe it or not, Monteiro and her team insert ed a new gene into the butterflys genetic sequenceone taken from a jellyfish . No, I know you're fooling. Actually I'm not. This gene codes for a green florescent protein t

发表于:2019-01-26 / 阅读(55) / 评论(0) 分类 英语听力文摘 English Digest

Amygdala's Acidic Aspiration Answer A study in the journal Cell shows that the buildup of carbon dioxide when we stop breathing causes a pH change that signals proteins in the brain to force us to inhale. Karen Hopkin reports. Maybe its happened to y

发表于:2019-01-30 / 阅读(168) / 评论(0) 分类 60秒科学

SCIENCE REPORT – January 23, 2002: Aging Protein By Jerilyn Watson This is the VOA Special English Science Report. A new study suggests that a protein that protects animals from cancer early in life

发表于:2019-01-30 / 阅读(125) / 评论(0) 分类 科技之光

HEALTH REPORT-Heart Disease and C-Reactive Protein By Cynthia Kirk Broadcast: Wednesday, January 19, 2005 I'm Gwen Outen with the VOA Special English Health Report. American researchers have found evi

发表于:2019-01-30 / 阅读(114) / 评论(0) 分类 健康与经济

C-reactive protein is an indication of inflammation in the body, and, at high levels, is considered an early sign of future heart disease. It's a risk factor in a similar way that elevated cholesterol is a risk factor for heart disease, says Asheley

发表于:2019-01-31 / 阅读(90) / 评论(0) 分类 VOA标准英语2010年(三月)

Low-salt,low-protein diet can prevent kidney stonesA diet low in salt and meat can dramatically reduce the risk of kidney stones,according to an Italian study that could spell the end for the low-calcium diet that doctors have been recommen

发表于:2019-01-31 / 阅读(90) / 评论(0) 分类 阅读空间

By Carol Pearson Washington 09 April 2008 Diabetics have a greater than average chance of having a heart attack or stroke. But new research indicates that lowering blood pressure and cholesterol below recommended guidelines seems to reduce these risk

发表于:2019-02-03 / 阅读(53) / 评论(0) 分类 VOA常速英语2008年(四月)

But those are dots on a screen for you; what exactly does that mean? 但是那些你们看起来是屏幕上的点;到底有什么意义呢? Well basically that means that this protein is changing from the sensitive cell to the resistant cell. 基本

发表于:2019-02-21 / 阅读(57) / 评论(0) 分类 TED演讲教育篇
学英语单词
absentment
acetylshikonin
afan
alligator forceps
amount of insurance required
angina membranacea
arduin
base plate cracking
be censured
bemists
BL-P 1597
bleached hologram
Blinkworthia
bomblets
box moulding
carbon monoxide diffusion capacity
Cardamine pratensis
coded format
coptered
dhule (dhulia)
digital measured entry system
draft horse
dual master cylinder
eigenvalue equation
electron work functon
environage
examination of leakage and breakage
festivally
filmdom
fisser material
fission-neutron
Gereshk
hairier
Hatton
head-ward
Hermosa, Caňo de la
heterogenetic induction
hopper scale testing apparatus
huntswoman
hypodermatomy
isopentyloxy
Jadīd Khulayf
king's chamber
klieg lights
leibel
lie behind
like a rabbit caught in the headlights
liliidaes
Lokka
malarial crescents
method of depreciation
mfg.
mild cognitive impairment
militiawomen
mine
motion-picture shows
neuromotorium
nocto television
non-foaming
olivacine
packet network time-sharing service
paratrichocutis
passeriform birds
Pennsylvania Avenue
periscope radar
ploughed through
project aid
PT (power turbine)
quercus phillyrioides
radionuclide
receive synchronizer
revised optimum allocation
rough housing
rustyback
rutterkins
Sarcina flava
secondary research
Sequential Couleur avec Memoire
Shakespeareanism
sheepishness
siccant
signorile
slitless spectrum
Spielmeyer's myelin staining
supraoptic hypophyseal tract
taichi
tease-hole
Thanksgiving cactus
three phases
tractive power
transpose conjugates
trench ocean
types of memory
ultramicroautoradiography
universal knowledge
usurper
WIIFY
wriggliest
Wǒlhyon-ri
young love
Yurécuaro
Zener barrier