一种膀胱致癌物

One common protein-contact prediction is that, if the side chain of one member of a pair of amino acids brought close together by folding is long, 一种比较普通的蛋白质接触预测就是,如果一对氨基酸的一个侧链折叠后很长,

发表于:2018-12-05 / 阅读(96) / 评论(0) 分类 经济学人科技系列

One of the leading researchers in the field of protein folding is David Baker of the University of Washington, in Seattle. 西雅图华盛顿大学的David Baker是蛋白质折叠领域研究者的领军人物之一。 For the past 20 years he and hi

发表于:2018-12-05 / 阅读(102) / 评论(0) 分类 经济学人科技系列

Researchers Genetically Modify Corn to Increase Nutrition Researchers in the United States say they have discovered how to genetically engineer corn to produce a kind of amino acid usually found in meat. The result is a food with increased nutrition

发表于:2018-12-18 / 阅读(147) / 评论(0) 分类 2017年VOA慢速英语(十)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. As Valentines day approaches, remember, its the thought that counts. Just ask a decorated cricket. Because according to a study published in the January

发表于:2018-12-24 / 阅读(94) / 评论(0) 分类 Scientific American(一)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Many of the key molecules for life have a specific direction, or handedness: DNA twists to the right, amino acids to the left. Now scientists at the Nation

发表于:2018-12-24 / 阅读(72) / 评论(0) 分类 Scientific American(四)月

85 新功效的抗生素在加州诞生 DATE=8-15-01 TITLE=SCIENCE REPORT - Designer Antibiotics BYLINE=Jerilyn Watson (Start at 1'04

发表于:2019-01-02 / 阅读(157) / 评论(0) 分类 科技之光

发表于:2019-01-03 / 阅读(74) / 评论(0) 分类 医务英语

Humulone 律草酮 Huperzine Serrate P.E 千层塔提取物 Hydroginkgolic acid 氢化白果酸 Hydroginkgolinic acid 氢化白果亚酸 p-Hydroxyacetophenone 对羟基苯乙酮 p-Hydroxybenzylalcohol

发表于:2019-01-03 / 阅读(89) / 评论(0) 分类 医务英语

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. In 1953 a student named Stanley Miller did an experiment showing that the simple chemicals present on the early Earth could give rise to the basic buildi

发表于:2019-01-08 / 阅读(91) / 评论(0) 分类 Scientific American(十)月

The early Earths oceans were home to a lot of interesting chemistry. Now scientists have found that amino acids thought to be present way back when could have been cooked into other compounds vital for lifean idea you should take with a grain of salt

发表于:2019-01-08 / 阅读(60) / 评论(0) 分类 Scientific American(九)月

By Ron Corben Bangkok 23 January 2007 Duck farmer looks to her duck receiving vaccination from Agricultural officials and volunteers in Penati, Bali, Indonesia, 23 Jan 2007 Fresh outbreaks of bird flu have triggered a renewed United Nations call for

发表于:2019-01-13 / 阅读(97) / 评论(0) 分类 2007年VOA标准英语(一月)

Researchers Say Malaria Drug Could Also Treat Cancer Scientists know that human cancer cells grow by getting energy from adjacent tumors, where cells have begun to self-destruct. The spread of cancer is accelerated by the death of these cells. This p

发表于:2019-01-13 / 阅读(118) / 评论(0) 分类 VOA标准英语2012年(三月)

If you sucked all of the moisture out of your brain and broke it down to its constituent nutritional content, what would it look like? 如果将你大脑里所有的水分都吸干,然后按不同的营养成分进行分类,会是怎样呢? Mos

发表于:2019-01-17 / 阅读(96) / 评论(0) 分类 TED演讲教育篇

Science and technology 科学技术 Creutzfeldt-Jakob disease 克雅氏病 Breaking down the barrier 攻破屏障 A glimmer of hope for a drug that treats disease caused by prions 药物治疗朊病毒感染疾病的一线希望 THE epidemic of mad-c

发表于:2019-01-26 / 阅读(140) / 评论(0) 分类 经济学人科技系列

Science and Technology Creutzfeldt-Jakob disease Breaking down the barrier 科技 克雅氏病 攻破屏障 A glimmer of hope for a drug that treats disease caused by prions 药物治疗朊病毒感染疾病的一线希望 THE epidemic of mad-cow dis

发表于:2019-01-26 / 阅读(120) / 评论(0) 分类 经济学人科技系列

In January 2015, a fire in one of Russia's largest university libraries damaged more than 1 million historical documents, an incident which some media described as a cultural Chernobyl. 2015年1月,俄罗斯最大的大学图书馆之一发生了火灾

发表于:2019-02-02 / 阅读(86) / 评论(0) 分类 英语新闻

There are actually twenty-two naturally occurring amino acids known on Earth, 实际上,地救上有22种天然存在的氨基酸, and more may await discovery, but only twenty of them are necessary to produce us and most other living things. 更多

发表于:2019-02-17 / 阅读(80) / 评论(0) 分类 万物简史

19 The Rise Of Life 第十九章 生命的起源 In 1953, Stanley Miller, a graduate student at the University of Chicago, took two flasksone containing a little water to represent a primeval ocean, 1953年,芝加哥大学的研究生斯坦利米勒拿

发表于:2019-02-17 / 阅读(79) / 评论(0) 分类 万物简史

Proteins are what you get when you string amino acids together, and we need a lot of them. 你把氨基酸串在一起,就得到了蛋白质。我们需要大量的蛋白质。 No one really knows, but there may be as many as a million types of pro

发表于:2019-02-17 / 阅读(56) / 评论(0) 分类 万物简史

Eating a small steak every day could be as good for you as stopping smoking, scientists say. 科学家说,每天吃一小块牛排可以像戒烟一样对你有好处。 People who eat lots of protein-rich food were found to have lower blood pressu

发表于:2019-02-18 / 阅读(334) / 评论(0) 分类 阅读空间
学英语单词
acroagnosia
aerial ping pong
aerobic phase
amaranthus caudatus l.
atrial natriuretic peptide
balancing plane
base-metal test specimen
Beachport
big enterprise
budgers
car carriers
central administrative legislation
cleaner bar
conditional event
continently
conveyorizes
cooperation in the field of labour service
corneringratio
counteractive
creative method
CVMP
da capo
denitrification in soils
dewrets
dscs (defense satellite communication system)
elaeocarpus chinensis (gardn. et champ.) hook. f.
erns
expulsion protective gap
exsmokers
Faraday pulsation
farinometer
fire fights
flat-headed borer
gastroenteritis catarrhalis
genus piscidias
genus pritzelagoes
ghost line
guide fossils
hackery
Haemulon
hand regulation
Highland County
history of social development
hydrological cycle
imwol-li (imwon-ni)
innere
interferometry ranging
Kadιköy
kary banks mullis
knicking
lean phase
Lithomyl
lobe comparison method
manderscheid
mavi
mechanical assembles
megamusical
Mollera, Zaliv
munteanus
nanotubule
nonuniform threshold voltage
North Troy
notchweeds
octadrachm
off-cameras
Okolona
Online Public Access Catalog
operations concurrency
PayPal Verified
PCC (process control computer)
perilympha
physiologian
Plagiopteraceae
played around
Ptilonyssus
regular form
returned check
rhizobiocin
rotary-drum unloader
scanning current
Selennyakhskiy Khrebet
separation board
sequential life test
sheep shearing unit
single-phase flow
sodium sulforicinolate
sogier
strategic transport aircraft
tafferel
theatergoing
thermal type
THRIDIDAE
throch
tire brake
two-engine inoperative climb
unring
ventilation for ship
Vibra-Tab
wanspeed
way-off
window mapping status information
with variable lift cam