抗性突变

Mummies Contain Clues to Colon Cancer 木乃伊包含了结肠癌的线索 From VOA Learning English, this is the Health and Lifestyle report. Colon cancer is linked with obesity, lack of exercise, and a poor diet high in processed foods. However, sc

发表于:2018-12-16 / 阅读(114) / 评论(0) 分类 2016年VOA慢速英语(三)月

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(139) / 评论(0) 分类 TED演讲国际问题篇

First up today, we are heading over to Asia, specifically to the East China Sea. You can see it coming up here on this map in just a moment, on one side of it, there is China, on the other side, Japan. There is a chain of islands in the East China Se

发表于:2018-12-24 / 阅读(145) / 评论(0) 分类 CNN2012年(八)月

This Scientific Americans 60-Second Science. I am Karen Hopkin. This will just take a minute. They say that older folks benefit from spending time with young people. And thats not just an excuse to stick grandma at the kids table at Thanksgiving. Now

发表于:2018-12-24 / 阅读(141) / 评论(0) 分类 Scientific American(五)月

By Ruth Reader Washington, DC 13 February 2008 There is growing concern around the world over illnesses caused by new antibiotic-resistant bacteria, or so-called superbugs, and the decreasing effectiveness of antibiotics to treat infections. Earlier

发表于:2019-01-07 / 阅读(163) / 评论(0) 分类 VOA常速英语2008年(二月)

This is scientific American's 60-Second Science, I'm Karen Hopkin, this'll just take a minute. If theres anything better than a fresh, ripe, tomato, its a gigantic fresh, ripe tomato. And thanks to a couple of mutations, thats exactly what we all enj

发表于:2019-01-08 / 阅读(173) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-Second Science, I'm Cynthia Graber. This'll just take a minute. If evolution weeds out detrimental traits, why do some seem to stick around? Well what's bad in our current environment may have been good in the conditi

发表于:2019-01-08 / 阅读(174) / 评论(0) 分类 Scientific American(六)月

Theres been an unexpected development in our understanding of drug resistance in bacteria. The accepted scenario was a simple case of evolutionary selection. In a bacterial population exposed to a killer drug, a few lucky individuals might have a gen

发表于:2019-01-08 / 阅读(216) / 评论(0) 分类 Scientific American(九)月

Scientists have identified a unique genetic mutation in about 10 percent of people with type 2 diabetes(糖尿病) studied in the United States and Europe. The discovery could help some people learn if they are at risk of developing diabetes so they

发表于:2019-01-11 / 阅读(209) / 评论(0) 分类 英语新闻

SCIENCE IN THE NEWS - Museum Aims to Keep African Archeological Treasures in Africa Also: A vaccine against meningitis proves successful in Uganda. And a study suggests genetic reasons for living longer. Transcript of radio broadcast: 12 May 2008 VO

发表于:2019-01-11 / 阅读(135) / 评论(0) 分类 VOA慢速英语2008年(五)月

MSF: Alarming Scope of Drug-Resistant TB A medical aid group says the spread of multi-drug-resistant tuberculosis is much greater than previously thought. Doctors Without Borders calls the situation alarming. MDR-TB is a form of tuberculosis that doe

发表于:2019-01-13 / 阅读(156) / 评论(0) 分类 VOA标准英语2012年(三月)

Science and Technology The science of stuttering Speech therapy 科技 口吃科学 演讲疗法 Unravelling the mystery of faltering speech 解秘演讲时的口吃 DOWN the ages stuttering has been blamed on many things. 多年来,口吃可以归咎

发表于:2019-01-26 / 阅读(188) / 评论(0) 分类 经济学人科技系列

By Jessica Berman Washington 08 May 2006 Scientists report they have cured a highly malignant form of cancer in ordinary laboratory mice using the white blood cells of mice that are resistant to cance

发表于:2019-01-29 / 阅读(200) / 评论(0) 分类 2006年VOA标准英语(五月)

59 美国科学家正试图培育抗叶锈病小麦 DATE=6-19-01 TITLE=AGRICULTURE REPORT - Developing Wheat Resistant to Leaf Rust BYLINE=George Grow (Start at 59

发表于:2019-01-30 / 阅读(200) / 评论(0) 分类 科技之光

Science and technology 科学技术 Cancer genetics 癌症遗传学 Gene therapy 基因疗法 Genetic mutations predict which cancers will respond to treatment 基因突变将预测某种治疗会对哪些癌症起作用 THE International Cancer Geno

发表于:2019-02-04 / 阅读(172) / 评论(0) 分类 经济学人科技系列

The International Atomic Energy Agency is making a push for an unusual type of technology, using radiation to produce higher yielding and hardier plants. Lisa Bryant has more on the technology that the IAEA says could help reduce hunger affecting mi

发表于:2019-02-06 / 阅读(182) / 评论(0) 分类 VOA标准英语2008年(十二月)

High-Tech Device Reduces Risk of Hospital Infections This machine fires bursts of ultraviolet, or UV, light that penetrate the cells of micro-organisms and kill them. The organisms have no chance to adapt and gain immunity as they might with a chemic

发表于:2019-02-12 / 阅读(197) / 评论(0) 分类 VOA标准英语2012年(二月)

为何人类爱吃肉 对多数人类来说,肉的味道非常美妙。众多的美食中,为何我们对它情有独钟呢? It is no less remarkable for people today, even those of us whose tastes run more to sirloin. Because if you look at wh

发表于:2019-02-18 / 阅读(209) / 评论(0) 分类 阅读空间

Surviving Cancer Twice 两次战胜癌症 After overcoming ovarian and breast cancer, the actress opens up about getting healthy, returning to work and the health challenge she still faces 在克服了卵巢癌和乳腺癌之后,这位女演员开始

发表于:2019-02-21 / 阅读(208) / 评论(0) 分类 人物杂志

Who do you think your pet is? Learning from Your Dog's DNA 你认为你的宠物是谁?狗狗DNA中的发现 A simple cheek swab can reveal your dog's ancestry, provide insight into its health and even help explain its behavior 擦一下狗的脸就可

发表于:2019-02-21 / 阅读(207) / 评论(0) 分类 人物杂志
学英语单词
anti-dilution clause
antibody-dependent phagocytosis
bakelite plate
base data
Better an open enemy than a false enemy
bite rim
boofheaded
book man
Bradley's disease
broaden sales
caffiers
calocarides chani
camera assembly
camphophenic
canyoned
chipless machining
circular milling attachment
coinfecting
coordinate repression (ames & garry 1959)
corrodies
cotwins
cynoglossus robustus
dabster
deck-piping control panel
defaulting party
diplocyte
disconnecting switch
dot angel
dret
Dubun
duck hunter
egoical
emblems
environmentally sponsored decay
exophtralmometer
FAT-16
feable estrus
FFW
file maker
fine spinning frame
Fluomazina
Fëdora, Zaliv
genetic abnormalities
glass ceramics
guere
gump stumps
have one foot in the grave
hepatic lympho-hemangioma
high-speed centrifugation
hole layout
home economics education
HSDA
ikea.com
in abstracto
inertia clutch
inside marketing
intergraded
intermediate tier
Laemanctus
logoklony
luws
Mesotaenium
mid.
mudproof
non pressure weld
ophthoscope
overplotted
parameterized type
parkinsonia aculeatas
PCMTS
perfume oil
plastein
plastic skylight
pourpre
program control register
Prunus angustifolia
pseudohydnum gelatinosum
pseudopatient
pugged
ramie cotton yarn
range preparation ground
re-costed
recombination error
rotary indexing
scubas
segmentation control
self-portraitures
smoke black
sondheads
stowaways
supervising engineer's representative
tailgate picnic
to the best of ability
trolleying
twice daily milking
uluda
upper tension spring
upset forging
vagus nerve anastomosis
velar plate
wolfsheim
Zernike, Frits