虫药的抵抗性

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(106) / 评论(0) 分类 VOA常速英语2008年(二月)

By Zulima Palacio Washington 15 March 2007 watch Artemisinin and Malaria Artemisia plant Artemisia plants grow in many parts of the world, and many varieties have long been known to have medicinal properties. One particular variety, Artemisia annua

发表于:2019-01-11 / 阅读(114) / 评论(0) 分类 2007年VOA标准英语(三月)

By Jessica Berman Washington 24 December 2006 A new study by the World Health Organization has found drug-resistant tuberculosis in virtually all of the 79 countries the organization surveyed around the world, with particularly high levels in countr

发表于:2019-01-12 / 阅读(134) / 评论(0) 分类 2006年VOA标准英语(十二月)

By Paul Sisco Washington 23 March 2007 U.S. scientists in the United States say they have moved a step closer toward success in the fight against malaria, by developing mosquitoes that are resistant to at least one form of the deadly illness. More o

发表于:2019-01-13 / 阅读(126) / 评论(0) 分类 2007年VOA标准英语(三月)

Drug-Resistant Malaria Threatens Effort to Control Disease The biggest fear is the resistance will spread across Southeast Asia and then spill over into Africa, where the vast majority of the 700,000 deaths a year [from malaria] occur. Historically,

发表于:2019-01-13 / 阅读(102) / 评论(0) 分类 VOA标准英语2012年(四月)

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(91) / 评论(0) 分类 VOA标准英语2012年(三月)

Most rice grows in wet environments, but too much water can be disastrous for rice crops. Plant biologist Pamela Ronald helped create a type of flood-resistant rice that is being introduced to India and Bangladesh. In Davis, California, we spoke wit

发表于:2019-01-13 / 阅读(106) / 评论(0) 分类 VOA标准英语2009年(三月)

University of Maryland scientists are working on a genetically-engineered fungus that would kill the malaria parasite. The battle against malaria continues to challenge doctors, scientists, and public health officials. Now, a team of British and Amer

发表于:2019-01-14 / 阅读(111) / 评论(0) 分类 VOA标准英语2011年(三月)

Rising Crop Prices Linked to Decline in World's Bee Population Terrence Ingram considers himself a naturalist. He said hes best able to commune with the natural world around him at the center of a swarm... of bees. I love beekeeping. Its one of Gods

发表于:2019-01-14 / 阅读(85) / 评论(0) 分类 VOA标准英语2013年(六月)

Pesticides Contribute to Decline in World's Bee Population Terrence Ingram considers himself a naturalist. He said hes best able to commune with the natural world around him at the center of a swarm... of bees. I love beekeeping. Its one of Gods grea

发表于:2019-01-14 / 阅读(79) / 评论(0) 分类 VOA标准英语2013年(六月)

Drug-Resistant TB Threatens Europe The Olallo Project in Central London was set up to help homeless people from Central and Eastern Europe get back on their feet by helping them find a place to live and get a job. The charity has evolved, though, to

发表于:2019-01-14 / 阅读(89) / 评论(0) 分类 VOA标准英语2013年(三月)

Drug-Resistant TB is Global Threat 耐药性肺结核对全球造成了威胁 The medical aid group -- Doctors without Borders -- warns that drug-resistant tuberculosis has become a global threat. It says despite the growing number of cases, there ar

发表于:2019-01-14 / 阅读(77) / 评论(0) 分类 VOA标准英语2014年(三月)

Bacteria Can Be Resistant to Brand-New Antibiotics 谁在对抗最新的抗生素 Perhaps the chief poster child of antibiotic resistance is methicillin-resistant Staphylococcus aureus, or MRSA. The bacterium is impervious to a suite of antibiotics,

发表于:2019-01-20 / 阅读(109) / 评论(0) 分类 2017年Scientific American(八)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(139) / 评论(0) 分类 科技之光

AGRICULTURE REPORT - Study Says Genetically Engineered Rice Cuts Use of Insecticides By Mario Ritter Broadcast: Tuesday, May 10, 2005 I'm Gwen Outen with the VOA Special English Agriculture Report. A

发表于:2019-01-30 / 阅读(70) / 评论(0) 分类 农业与发展

By Scott Bobb Pretoria 19 October 2006 Health officials from southern Africa and the World Health Organization (WHO) met Tuesday and Wednesday in South Africa to discuss ways to deal with growing cases of drug-resistant tuberculosis. Because new dru

发表于:2019-02-04 / 阅读(147) / 评论(0) 分类 2006年VOA标准英语(十月)

The dengue virus is spread through the bite of an infected female Aedes egypti mosquito. The disease causes flu-like symptoms, including high fever, muscle aches and sometimes death. Each year, the disease strikes between 50 and 100 million people li

发表于:2019-02-05 / 阅读(64) / 评论(0) 分类 VOA标准英语2010年(三月)

An unusual method for producing antibiotics may help to solve an urgent global problem: the rise in infections that resist treatment with commonly used drugs, and the lack of new antibiotics to replace ones that no longer work. 耐受常用药物治疗

发表于:2019-02-06 / 阅读(74) / 评论(0) 分类 阅读空间

Malaria patients being treated at the hospital in Pailin, Cambodia. This spot on the Thai-Cambodian border is home to a form of malaria that keeps rendering one powerful drug after another useless (file photo) Health experts were alarmed to find a st

发表于:2019-02-06 / 阅读(92) / 评论(0) 分类 VOA标准英语2010年(七)月

Properly analysed, Fraunhofer lines provide information about the exact chemical make-up of whatever is reflecting the light. 经过恰当分析,夫琅和费谱线可以提供关于任何反光物体的化学组成的确切信息。 Their patterns

发表于:2019-02-16 / 阅读(105) / 评论(0) 分类 经济学人科技系列
学英语单词
a legend in one's lifetime
allodification
angle head cylindrical grinding machine
anglo continental drawing box
antiputrescent
assembly trolley rails
baulk
between you, me and the doorpost
candy floss
cargo in dram
champagne trick
check computations
cistern car
condition
contraction and release
contralateral routing of signals aid
cyclic carousel system
deposition plane
dicerium
digital microwave radio
dip grain
distoclination
dolostone
downstairs
dramatic expression
El Catuco
elastic drive
elder days
eri-silkworm
Femestrone
filling ring
fontanelles
functional earthing
General Agreement on Trade in Services
Grubyella
guidance mechanism
guizhouensis
hemiseptum
herken
high speed adjustment
huff paste
i-cnowen
idyllism
internal flexion
isobutyl carbylamine
kalahari deserts
kick in the pants
Kleihauer
Lake Hopatcong
live hydraulic pump
local authorities management information system
manticulate
marine zooembryology
meissonnier
melanagromyza metallica
more power to you
musculus longitudinalis super ficialis linguae
no sale final
noise by combustion
not getting anywhere
object orientation
organic element analysis
Paphiopedilum concolor
parkering
pharmacons
pile irradiation
pinatas
plasmogen
plutos
Poggiardo
porcelain casserole
productresses
pus-gut
removable louvers
road crew
rural jurisprudence
savinases
scritching
sea monkey
shock absorber body
spinellide
state-led
sulphohydrolase
symphonized
Tao Jun
tempestively
tetrafluoroboric acid
tetrochetus sp.
the course
theriogenology
thermal endurance profile
thermodynamic engine
Tisco manganese steel
touch-toner
traveler's-joy
TV antenna booster
utility requirement document
voltampere switch
white-crowned plovers
yangtses
zeolite water