细胞的核性别

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(223) / 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(64) / 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(64) / 评论(0) 分类 VOA标准英语2010年(十一)月

The New Age of Nuclear Power By Spencer Reiss / Originally published in Wired . Get ready for the mass-produce, meltdown -proof future of nuclear energy 1 A team of Chinese scientists advising the Bei

发表于:2018-12-19 / 阅读(164) / 评论(0) 分类 彭蒙惠英语

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(80) / 评论(0) 分类 2017年Scientific American(一)月

今天我们要学的词是 accelerate. Accelerate 做为动词,有加速,增加的意思。China's exports accelerated in July despite an escalation in the US-China trade war. 尽管美中两国贸易战不断升级,但是中国7月份的出口依

发表于:2018-12-30 / 阅读(43) / 评论(0) 分类 英语单词荟萃

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(87) / 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(82) / 评论(0) 分类 英语小短文

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(156) / 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(106) / 评论(0) 分类 2007年VOA标准英语(三月)

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(110) / 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(88) / 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(73) / 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(106) / 评论(0) 分类 世界各地新闻集锦

We are at a foundry here, and they are pouring molten iron from all machinery. And they are going to make parts for new machines out of that iron, so they are recycling yet, but all that iron was created and ejected into the cosmos by gigantic stars

发表于:2019-01-22 / 阅读(75) / 评论(0) 分类 自然百科2011年

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(120) / 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(129) / 评论(0) 分类 科技之光

17 科技新闻摘要(六) DATE=6-19-01 TITLE=SCIENCE IN THE NEWS #2129 - Digest BYLINE=Staff VOICE ONE: This is Bob Doughty. VOICE TWO: And this is Sarah Long with Science in the News, a VOA Spec

发表于:2019-01-30 / 阅读(368) / 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(70) / 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(53) / 评论(0) 分类 VOA常速英语2007年(十一月)
学英语单词
admired
alaoui
ameses
andocamaria formosana
authorings
backsourcing
barrow-downs
belkin
biological weed control
black pannus
blanket attack
bobjonesite
Bochner's theorem
bohriate
borishanskiite
bourgeoisifies
camerouns
circular deflection
clergymen
cluster expansion
combined system bridge
companion way cover
composition maturity
consecrate
cryogenic tunnel
Cryptocarya yaanica
cycle redundancy check
cymo quadrilobatus
dative-case
daystar
differential rod worth
discovery-by-event
dudettes
equilibrium factor
escape procedure
escaping neutron
feers
gallwey
gangster movie
gossipingly
grey flounder
have sth wrong with
heterogeneous surface
hidden surface elimination
indecomposable
interstar winding
jacques monods
Juaben
laceups
layer matrix
linear beam density
local rounding error
long legged fly
many bottom plow
maximum allowable tank filling limit
maximum and minimum tariffs
median nasal prominence
mixed flow impeller
model-directed inference
myelomeningocystocele
non-stationary vibra-tion
nondusting
normen
one-metre
os capitatums
OTT video
oxido-reductase
plasmodesma
plurasie
precharge time
preview dialer
put at his ease
radiation channel
RDDL
reaction-time
recording phase hologram
response-time
rhathymia
sarkisyan
scrivened
shorefishes
slide-back voltmeter
Spiraea lobulata
strafing
strategy-oriented restructuring
technically-oriented
tenuiculus
the same as
the supernatural
thermal stimulation
toil away
transverse beam
triamelin
troya
understaffing
unprovincial
unrestrictable
vertifuge
victory over oneself
viemamese
waferer
worldcon