薄壁细胞

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(274) / 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(106) / 评论(0) 分类 VOA慢速英语2008年(六)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(114) / 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(136) / 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(135) / 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(141) / 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(164) / 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(214) / 评论(0) 分类 2006年VOA标准英语(八月)

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(163) / 评论(0) 分类 2011年VOA慢速英语(二)月

Medical experts in Miami are hoping to speed up research using embryonic stem cells. Their work may lead to advances in treatment for spinal cord injuries, Alzheimer's disease and other illnesses. President Barack Obama signs an Executive Order on s

发表于:2019-01-13 / 阅读(97) / 评论(0) 分类 VOA标准英语2009年(三月)

A new partnership is being launched to develop a malaria vaccine that would prevent parasites from entering the liver. Most of the symptoms of the disease develop after parasites have had time to replicate there. A new partnership is being launched t

发表于:2019-01-13 / 阅读(105) / 评论(0) 分类 VOA标准英语2010年(十二)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(130) / 评论(0) 分类 VOA标准英语2011年(八月)

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(131) / 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(147) / 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(176) / 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(174) / 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(114) / 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(99) / 评论(0) 分类 VOA常速英语2007年(十一月)

Shy That Way Tristan PrettymanJason Mraz You know youre stunning Youre absolutely stunning And Im running always running And now Im crying Iyou know only cause Im caring And if you were more daring Maybe youd stop staring And come over and talk to m

发表于:2019-02-02 / 阅读(202) / 评论(0) 分类 音乐咖啡厅

U.S. President Barack Obama has lifted restrictions on federal funding for medical research using human embryonic stem cells. Mr. Obama says it is part of a broader effort to limit political interference in science. President Barack Obama signs an E

发表于:2019-02-03 / 阅读(97) / 评论(0) 分类 VOA标准英语2009年(三月)
学英语单词
a nine days' wonder
alannah
alderlin
allogenetic
alumina ceramic
arnosky
ASSR,A.S.S.R.
astronaut productivity
automatic obedience
Bacillus ovisepticus
bile cyst
Bolivina
cash poor
co-crystallizing
coal pile
connector base
cosi2 high power-added efficiency
croisilles har.
cyano groups
Dammam
data loss
delivery of vessel
destructive animal
detrusion ratio
Dexromaplatin
discrete or integral variates
Ediswan wiring system
efficiency production
elective purchaser
erosus
euro-americans
ffore
Fodda, Oued
G-System
gas-to-gas heat exchanger
gastronomes
gate-drain overlap
god'n
graphite celectrode
Great Exuma
hawse
highway user's benefit
i-strangled
IkTORIVIL
impartest
indexing chart
jacol
jockey valve
laurinburg
lead silver ore
long-term frequency stability
makes no difference to
male parent line
measurement of non linear distortion
metal deactivating agent
methods of fluxions
milliarium
minor switch
minsed
model rule
multifuel fired boiler
n-tuple
neeves
novene
okiseius subtropicus
operation efficiency rate
oral-lateral
Piper's manometer
pliomerids
prebreak-in
prestress without bond
production values
pulp tester
pure holding company
Pyatigorsk
range of uses
rear fender
rider
right of territorial sea
right-hand mounted
rotary cut
sack handling
salting (-out) evaporator
sarcolactate
single slot winding
single-phase series motor
sparries
splurges
stairchairs
static wick discharger
threshold potential
topliner
tradesperson
Villacaňas
viscaria
visual feature
vivo per lei
Volvox aureus Ehrenb.
vomero-nasal organ
Wilson experiment
zebrasoma scopas
zigzaggery