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(335) / 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(161) / 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(170) / 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(199) / 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(171) / 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(222) / 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(203) / 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(271) / 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(213) / 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(140) / 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(155) / 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(176) / 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(178) / 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(196) / 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(221) / 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(245) / 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(164) / 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(147) / 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(240) / 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(144) / 评论(0) 分类 VOA标准英语2009年(三月)
学英语单词
abaciscuses
aspect system
axis of precession
badgerlike
balanced stock
barrier injection transit-time diode
be hooked
BH macro
black pantherss
bloom stamping machine
boiler ash
Bom Jesus
bondad
borzya r.
burree
canonicalizations
Chatham I.
choccy
conjunctival degeneration
counterless
counterpart staff
d-epicrinine
direct-coupling
disposal of sewage
eucaryotic
ever-so
fagopyrin
fluorography
formal theory of measurement
front bevel angle
glass schorl
gustafsons
I/P split
Ibalal
idioagglutinin
in sb's room
in the green wood
inner child
issue house
jamesonite
Karagash
LC-412
lever guide
Lubliniec
magnetic system
maximum draught
medium section mill
melia dubia cav.
no admission charge
nonpunitive
nwachukwu
ophioglossum pendulums
outstanding data formatting
pathological emphysema
pattern recognizer
petrographic classification
phalli
Phobetron
pivie
Pol.
polyphase system
post anal papilla
postathon
prismatic compressive strength
psychedelic trance
rabba
ravenmaster
recommended course indicator
recovery of civil damages
referendarial
reset setting
runway alignment indicator
sealed proposals
selective price freezes
semiintutitive skill
sewing-machine
single-phase double-frequency generator
social dominance
sommersets
soyned
spare terminal
specific tax
spousal individual retirement account
star-formation
storage properties
Strega Prize
Sufenta
Tadami-gawa
tanella chijeni
tanglefoamed
tchakarov
tentioning stroke
the beginning of a year
tiksi
top-gun
transit goodwn
Tsaraxaibis
turbulent friction velocity
veggies
verdolaga
West Nueces R.
zygomaticomaxillary suture