时间:2018-12-24 作者:英语课 分类:Scientific American(十二)月


英语课

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute.


 


Sarah Palin on the campaign trail was at times dismissive of science. She attacked fruit fly research, saying that tax dollars were going to “projects having little or nothing to do with the public good, things like fruit fly research in Paris, France. I kid you not.”


Well, as the mother of a special needs baby, maybe Palin should check out a report in the current issue of the journal Nature Neuroscience. University of Alberta researcher Francois Bolduc keeps 300,000 fruit flies in a basement laboratory. He discovered that disrupting one gene 1 known as FMR1 in the flies’ brains can wipe out their long-term memory. What’s interesting for us is that damage to that gene in people is associated with learning and memory problems, epilepsy and autism. That constellation 2 of traits is known as fragile X syndrome 3. Bolduc then worked on curing his forgetful flies—he found a class of drugs that reduces the activity of the FMR1 gene. And the insects were able to regain 4 their memory. Which could point to treatments for fragile X syndrome in humans. Thanks to fruit fly research in Alberta, Canada. I kid you not.


 


Thanks for the minute for Scientific American's 60-Second Science. I'm Cynthia Graber.


 


Announcer: For more on McCain-Palin science slipups, listen to the December 17th episode of the weekly SciAm podcast, Science Talk, and check out the Anti Gravity column in the January issue of Scientific American magazine, also available at SciAm.com/sciencemag


 



1 gene
n.遗传因子,基因
  • A single gene may have many effects.单一基因可能具有很多种效应。
  • The targeting of gene therapy has been paid close attention.其中基因治疗的靶向性是值得密切关注的问题之一。
2 constellation
n.星座n.灿烂的一群
  • A constellation is a pattern of stars as seen from the earth. 一个星座只是从地球上看到的某些恒星的一种样子。
  • The Big Dipper is not by itself a constellation. 北斗七星本身不是一个星座。
3 syndrome
n.综合病症;并存特性
  • The Institute says that an unidentified virus is to blame for the syndrome. 该研究所表示,引起这种综合症的是一种尚未确认的病毒。
  • Results indicated that 11 fetuses had Down syndrome. 结果表明有11个胎儿患有唐氏综合征。
4 regain
vt.重新获得,收复,恢复
  • He is making a bid to regain his World No.1 ranking.他正为重登世界排名第一位而努力。
  • The government is desperate to regain credibility with the public.政府急于重新获取公众的信任。
标签: SSS constellation
学英语单词
98
acidity
aerosol food
afghanistani
alloy irons
antibiolumphin
ashpan blower valve
automatic assembly
avi cable
bakeout degassing clamp
birchleaf pear
body-curved disease
bodywood
bottom relief map
Bozeman's position
bridge cloth
bullock blocks
bushing electric
call accepted signal
chondriomere
Cirbanal
close set
color constants
comebackers
commodity wastage
correptions
courier bag
Cunaxa
departmentation by process or equipment
electronic fire-control equipment
element name
encoded fields
end of astronomical evening twilight
engine pod
ensampling
epss network
featurism
ferret distemper virus
fiber-map
full electronic switching
gallucci
general-purpose diagnostic program
geographical north
geospatial engineering
glowfly
haberse
hardware stage
hexagonal mirror
hot penetration construction
Hudsonian godwit
Immobilon
interstitial distance (mather 1936)
investigation on audience
Krasnaya Polyana
layer-wound solenoid
leather loader
limestone neutralization treatment
maximal tubular excretory capacity
melanedema
natural rate of unemployment
nerr
non-coplanar transfer
norvasc
nosedives
OMR (optical mark reader)
optically positive
over bridges
partner with
Pashtunwali
patung series
paving stone degeneration of retina
permanent magnet moving coil meter
pivoted bucket carrier
plantar spaces
plunged into
prince fumimaro konoyes
prodan
psychoanalytical theory
Pterocles
pyrophoric lead
raw material of woodcharcaol
roller chamfer
schwab
Scythians
sequentially-lobed radar
signal smoke
signe de peau d'orange
slugft
So it goes
sp vol
spin space
Stackelberg decision theory
swansea
tandem electrostatic generator
terry swatch
the leaflets of the trifoliolate leaves
topochemical control
variable acceptance sampling
viscosity model
Warenford
weighing-appliance
zeomorphis