立方形细胞

Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only withi

发表于:2018-12-01 / 阅读(292) / 评论(0) 分类 新东方背诵文选

Evidence is seen for a possible cause of solid tumors, but many questions remain. Transcript of radio broadcast: 24 June 2008 This is the VOA Special English Health Report. Some experts predict that doctors will someday use stem cells to treat many

发表于:2018-12-15 / 阅读(117) / 评论(0) 分类 VOA慢速英语2008年(六)月

Pythons Unlock Human Heart Health Secrets Studying snakes might seem like an unlikely way to help people with heart disease, but a pythons remarkable ability to quickly enlarge its heart during digestion has Colorado medical researchers looking towar

发表于:2018-12-16 / 阅读(104) / 评论(0) 分类 VOA标准英语2011年(十一月)

An international team of scientists at a U.S. university is investigating whether 'cooking' cancerous tumors using tiny nanoparticles in a magnetic field might be an effective and useful treatment. Preliminary findings suggest they may be on the righ

发表于:2018-12-16 / 阅读(135) / 评论(0) 分类 VOA标准英语2010年(十一)月

Long ago, before BandAids, or even medicine of any kind, our ancestors evolved to heal cuts themselves. If you got sliced open, the body blocked it up, to prevent blood loss, water loss, infection. But as we gained that powerwe sacrificed something e

发表于:2018-12-24 / 阅读(155) / 评论(0) 分类 2017年Scientific American(一)月

Norm woke up to go to the bathroom. He looked in the bathroom mirror. That bump used to be smaller. It was on the side of his nose. The bump looked puffy. He touched it. It wasn't hard. It didn't hurt. It wasn't a different color. Maybe it was just s

发表于:2019-01-02 / 阅读(147) / 评论(0) 分类 原版英语小短文

英语短文:Cells and Temperature Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only within a narrow ra

发表于:2019-01-08 / 阅读(164) / 评论(0) 分类 英语小短文

By Melinda Smith Washington, DC 22 June 2006 watch Stem Cell report A new medical treatment injecting embryonic stem cells and other drugs into paralyzed mice has researchers wondering if it could eventually help humans suffering from Parkinson's an

发表于:2019-01-09 / 阅读(175) / 评论(0) 分类 2006年VOA标准英语(六月)

By Efam Dovi Accra 23 August 2006 In Ghana, a high court in the capital Accra Tuesday sentenced five robbers to more than 300 years in prison in what the police say is a clear sign the country is taking violent crime seriously. The spate of armed ro

发表于:2019-01-11 / 阅读(237) / 评论(0) 分类 2006年VOA标准英语(八月)

By Carol Pearson Washington 27 March 2007 watch Heart Stem Cell report It is being hailed as a major medical breakthrough: cardiologists are using adult stem cells, not the controversial embryonic stem cells, to rejuvenate the hearts of patients who

发表于:2019-01-11 / 阅读(168) / 评论(0) 分类 2007年VOA标准英语(三月)

Major Progress in Health Through Technology From VOA Learning English, this is SCIENCE IN THE NEWS in Special English. Im Bob Doughty. And Im Faith Lapidus. Today, we tell about a woman who can use signals from her brain to move a robotic arm. We tel

发表于:2019-01-12 / 阅读(169) / 评论(0) 分类 2013年VOA慢速英语(五)月

FAITH LAPIDUS: This is SCIENCE IN THE NEWS in VOA Special English. Im Faith Lapidus. CHRISTOPHER CRUISE: And Im Christopher Cruise. Today, we will tell about possible hope for children suffering from damage to their nervous system. We will also tell

发表于:2019-01-12 / 阅读(185) / 评论(0) 分类 2011年VOA慢速英语(二)月

'Serial Killer' Cells Demolish Leukemia Tumors U.S. researchers say they've been able to modify a patient's immune system T cells, turning them into serial killer cells which zero in on cancer and obliterate it. Its being called a breakthrough in the

发表于:2019-01-14 / 阅读(148) / 评论(0) 分类 VOA标准英语2011年(八月)

Scientists say they have successfully tested artificial blood vessels grown in the laboratory. In a heart bypass operation, surgeons typically remove a vein from a patient's leg and use it to replace blocked arteries that feed the muscles of the hear

发表于:2019-01-14 / 阅读(174) / 评论(0) 分类 VOA标准英语2011年(二月)

Volunteers Help Scientists in Search for Cheap Solar Cells Most of today's solar cells are silicone-based and their manufacture requires sophisticated machinery and expertise. An average home in the United States uses between 20 and 24 kilowatt hours

发表于:2019-01-14 / 阅读(147) / 评论(0) 分类 VOA标准英语2013年(七月)

Australian researchers may have discovered a new way to treat hearing loss in infants. And the secret lies in the NOSE. Our reporter Li Dong has the details. Noses comes in all shapes and sizes, and Australian scientists are now trumpeting a new use

发表于:2019-01-19 / 阅读(162) / 评论(0) 分类 世界各地新闻集锦

Beating Heart Tissue from Stem Cells In a study in the journal Science, researchers explain how they used mouse embryonic stem cells and microchip technology to create heart muscle tissue that actually beats. Cynthia Graber reports One of the goals o

发表于:2019-01-30 / 阅读(189) / 评论(0) 分类 60秒科学

> 39 脂肪中的茎细胞有助于治疗糖尿病 DATE=4-26-01 TITLE=SCIENCE REPORT- Stem Cells in Fat BYLINE=Nancy Steinbach (Start at 59

发表于:2019-01-30 / 阅读(194) / 评论(0) 分类 科技之光

HEALTH REPORT - Fetal Skin Cells May Treat Burns By Caty Weaver Broadcast: Wednesday, September 21, 2005 I'm Shep O'Neal with the VOA Special English Health Report. A method tested in Switzerland may

发表于:2019-01-30 / 阅读(128) / 评论(0) 分类 健康与经济

By VOA News 20 November 2007 Two separate teams of scientists say they have transformed ordinary human skin cells into ones that look and act like embryonic stem cells. Laboratory teams at universities in the United States and Japan Tuesday announced

发表于:2019-01-31 / 阅读(121) / 评论(0) 分类 VOA常速英语2007年(十一月)
学英语单词
00886
adjusted profit
Adrano
Alangium chinense
America's Cup
amphipnile
angle shape ratio
archeopteryxes
automatic tuning startup program
average unit cost
Baldwin II
barato
batted an eye
bestented
botnars
bottom brush
braking force controller
BSSG
buff-duff
caporal
carbonized noil
CC-CPR
cellulose hydroxypropyl
charging
chemosensory neuron
chromaticity co-ordinates
civilian casualties
climate during brief spring and summer
climate parameter
closed depression
cloudy vision
cobalt nitride
connecting pointer
Davallia pyxidata
deoxythymidylate
draft aft
economic technical system
error detection without repetition
esurition
faldore
Falloa's syndrome
famous book
fax cipher unit
felspars
forceps occipitalis
gallery-owner
generalized variance decomposition
genus Haliotis
get short shrift
greenport
group O
in situ pressiometer
Let you go
leud
liftoff activity
Longsdon
Macintosh, Charles
magmatic migration
mismarriages
mu balanced circuit
multidivergent
muscari argeai hort. var. album
neighbourship
nhis
nonfarm sector
nonworkplace
Omni directional Antenna
Perso-
pulpitum
quadtree complexity theorem
radical of matrix A
rainforested
rational thought
regulations for reconstruction
renal parenchyma
renormalization group methods
repair team
round-bottomed
scapulocoracoid
simultaneously
single pass condenser
sintered gear
special despatch service
sternal bar
structural colors
sundry credits
temporal veins
throd
thrombectomies
top fourth jewel
total enclosed type
transcontinental geophysical survey
Trogontheuium
uttam
valiantly
weisweilers
Whittonstall
workmen's-compensation
yield fruit
Zambesi fever
zoom boxes