[机] 戊-苯醚, 戊氧基苯

Many of the Burgess specimens have now been assigned to living phyla just where Walcott put them in the first place. 许多布尔吉斯标本现在已经归到活着的动物的门里就是沃尔科特最初放置它们的地方。 Hallucigenia and s

发表于:2018-12-18 / 阅读(217) / 评论(0) 分类 万物简史

What about sleep? In slow-wave deep sleep, our glial cells rinse cerebral spinal fluid throughout our brains, 关于睡眠呢?在慢波深度睡眠时,我们的神经胶质细胞冲洗着我们大脑中的脑脊液, clearing away metabolic wast

发表于:2018-12-18 / 阅读(154) / 评论(0) 分类 TED演讲国际问题篇

So what happens when amyloid plaques accumulate to this tipping point? 所以当淀粉样斑块积累到临界点后会发生什么? Our microglia janitor cells become hyper-activated, releasing chemicals that cause inflammation and cellular damage

发表于:2018-12-18 / 阅读(216) / 评论(0) 分类 TED演讲国际问题篇

Even before scientists sort this out, this information is actually really good news for us, 即使科学家还尚未解决问题,这一好消息确实振奋人心, because it turns out that the way we live can influence the accumulation of amyloi

发表于:2018-12-18 / 阅读(195) / 评论(0) 分类 TED演讲国际问题篇

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro

发表于:2018-12-24 / 阅读(187) / 评论(0) 分类 Scientific American(三)月

Fun Fact: Alligators Can Regrow Teeth 有趣的事实:短嘴鳄可以再长牙齿 Fun fact about alligators: they can regrow any of their eighty teeth up to fifty times. Which is pretty impressive, especially compared to us relatively dentally chal

发表于:2018-12-28 / 阅读(179) / 评论(0) 分类 初学者听力文摘精选

its time again for the A Moment of Science mailbag. A listener writes: Dear A Moment of Science, Ive always been fascinated by volcanoes. So I was wondering: How well can scientists predict when and where a volcano will erupt? Intersting question. Th

发表于:2018-12-31 / 阅读(167) / 评论(0) 分类 英语听力文摘 English Digest

Alice: Hello and welcome to 6 Minute English from BBC Learning English: well be talking about a story in the news and learning some vocabulary along the way. Im Alice and joining me today is Rob. Hi Rob. Rob: Hi there Alice. Alice: Now, Rob are you a

发表于:2019-01-07 / 阅读(218) / 评论(0) 分类 六分钟英语

This is Scientific American's 60-Second Science. I am Steve Mirsky.Got a minute? Talk about your vicious cycles. A new study finds that belly fat could be making you hungrier. Which would lead to more belly fat. The research was performed at the Univ

发表于:2019-01-08 / 阅读(215) / 评论(0) 分类 Scientific American(四)月

Algae seem harmless enough. These precursors to plants thrive throughout the world's waters. But these single-celled plants have global consequences. We can thank them for oxygen in the atmosphere, oil in the lithosphere as well as dead zones in the

发表于:2019-01-08 / 阅读(231) / 评论(0) 分类 Scientific American(十一)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Its like the molecular version of the Joker and the Riddler teaming up against Batman. Scientists at Yale University have discovered that amyloid beta, a

发表于:2019-01-08 / 阅读(221) / 评论(0) 分类 Scientific American(三)月

VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Bob Doughty. VOICE TWO: And I'm Faith Lapidus. Today we tell about Alzheimer's disease. One century after its discovery, the cause of the disease is still unknown. (MUSIC) VOICE ONE:

发表于:2019-01-11 / 阅读(156) / 评论(0) 分类 VOA慢速英语2007年(一)月

The latest developments in research into the most common form of dementia. Transcript of radio broadcast: 09 June 2008 VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. Im Faith Lapidus. VOICE TWO: And Im Bob Doughty. Today we tell abou

发表于:2019-01-11 / 阅读(216) / 评论(0) 分类 VOA慢速英语2008年(六)月

FAITH LAPIDUS: This is SCIENCE IN THE NEWS, in VOA Special English. Im Faith Lapidus. BOB DOUGHTY: And Im Bob Doughty. Today we tell about Alzheimers disease. More than a century after its discovery, Alzheimers disease is still destroying peoples bra

发表于:2019-01-12 / 阅读(217) / 评论(0) 分类 2011年VOA慢速英语(二)月

New research suggests a relatively simple blood test might make it possible to predict who is at a higher risk for developing dementia. The most common form of dementia is Alzheimer's Disease, and currently, it can only be definitively diagnosed in a

发表于:2019-01-14 / 阅读(204) / 评论(0) 分类 VOA标准英语2011年(一月)

Sleep. It's something we spend about a third of our lives doing, but do any of us really understand what it's all about? Two thousand years ago, Galen, one of the most prominent medical researchers of the ancient world, proposed that while we're awak

发表于:2019-01-24 / 阅读(286) / 评论(0) 分类 英语语言学习

HEALTH REPORT - New Method to Find Alzheimer's Disease By Jerilyn Watson Broadcast: Wednesday, February 04, 2004 This is the VOA Special English Health Report. A computer picture of a brain affected b

发表于:2019-01-30 / 阅读(217) / 评论(0) 分类 健康与经济

HEALTH REPORT - New Alzheimer's Drugs Tested By Cynthia Kirk Broadcast: Wednesday, August 04, 2004 This is Phoebe Zimmermann with the VOA Special English Health Report. Researchers say two experimenta

发表于:2019-01-30 / 阅读(158) / 评论(0) 分类 健康与经济

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(359) / 评论(0) 分类 英语新闻

Let's begin by looking at what we currently understand about the neuroscience of Alzheimer's. 让我们先看看目前神经学上对老年痴呆的了解。 Here's a picture of two neurons connecting. 这是一张两个神经元连接的图。 The p

发表于:2019-02-13 / 阅读(204) / 评论(0) 分类 TED演讲国际问题篇
学英语单词
1-chloro-2-methyl-2-propanol
A bargain's a bargain.
accident death benefit insurance
air-cooling refrigeration
Amphissitidae
annular transistor
anteriormost
archlutes
arwalds
athermous
be put on hold
benzalacetophenone dibromide
brod of a core iron
Capiata
cardiopulmonary bypass
chasmistes cujus
Cholexamin
cif under ship's tackle
cobalt-bearing ferronickel
conservation of resources
cudgel one's brains
cut and weigh method
developmentalgenetics
diacetyl tartaric acid
diophane
distribution of budget
endocranial cast
ever ready
f.c
fancy soap
far-reaching plan
farm production fund
garama
getting back at
Hamilton, Alexander
harveyed
high velocity air conditioning system
hold sth in leash
hole inclination
hot-wire type
hyposensitize
hypothalamo-adenohypophyseal system
hypothetic(al) operating system
i.o.u.s
impulse repetition
indecencies
Internet speed
konigstein
lamellifer
lastmod
ledloy free cutting steel
management principles put forward by Fayol
mastonia caloundra
Mikomoto-jima
model of agrarian economy
mold release agent
Moradabad
move to
moving dune
multisegment structure
myosotis
natural minor scale
neurolemmal
noble-metal thermocouple
oven type furnace
pick sb to pieces
pitch cylinder of worm
plant-breedings
poise
polisteskin
polymer tape
post-translation
present-perfect
Quercus wutaishanica
rakehells
RealPC
receiving end crossfire
refueling mission
rellish
rental income from land and buildings
restitution technique
restreints
rocket bases
salvage prize
santillan
semi-transparent sintered
shagreening
soniat
stick something up your ass
Strikes Risks
suboptimal adaptive regulator control
survival mechanism
switched network
tetramethyl silicane
thiogalactopyranoside
tissue processing
unconsolidated formation
under advice
Venâncio Aires
verret
widow's lock
Zanthoxylum austrosinense