法国科学家发明收集床虱的新工具
文章来源:未知 文章作者:enread 发布时间:2015-05-13 07:23 字体: [ ]  进入论坛
(单词翻译:双击或拖选)
In recent years, bed bugs2 (Cimex lectularius) have been appearing more and more often in beds around the world, and entomologists need specimens3 for research purposes. Scientists in France have developed a tool that will aid this research, and their device is described in an article called "A High-Performance Vacuum Cleaner for Bed Bug1 Sampling: A Useful Tool for Medical Entomology" that was published in the Journal of Medical Entomology.
 
"The need for bed bug amelioration requires increased bed bug monitoring and control," they wrote. "To increase monitoring and control levels, laboratory research on this pest insect is required for the development of innovative4 strategies and tools to eliminate bed bug infestations5. Prior to developing laboratory experimental protocols6 to control bed bugs, field collection of this insect is necessary."
 
With the goal of collecting bed bugs to be used in laboratory research, they modified a Dyson hand vacuum (model DC34) with a sampling vial and a nozzle and created a device that proved to be effective at collecting bed bugs. In a bed bug-infested apartment where the device was tested, it collected more than 700 bed bugs in under 15 minutes, including adults, larvae7, and eggs.
 
Typically, researchers have collected bed bugs with an aspirator, which is sort of like a mouth-powered vacuum, or they have used actual high-powered vacuum cleaners. However, the mouth method often isn't powerful enough to suck up bugs or eggs that are hidden in crevices8 or attached to mattresses9, and it could potentially expose collectors to diseases. And the high-powered vacuum method often damages the insects, making them difficult to study.
 
Enter the modified Dyson contraption. During the field test, it was powerful enough to collect the bugs, but gentle enough to not damage them. Furthermore, it was light and easy to clean.
 
The researchers are optimistic that this new contraption will be able to safely and effectively collect bed bugs in the field to be used in laboratory research. However, they aren't limiting its uses to only bed bug collecting.
 
"The modified vacuum has other uses besides collecting bed bugs," said Dr. Jean-Michel Bérenger, one of the authors. "We have already tested it on lice, and we will also test it for fleas10. It's not adapted for fragile insects such as mosquitoes, as it's too powerful, but I think it will be used for crop pest collecting or by entomologists using mouth aspirators (pooters) in the field, like coleopterists collecting under loose bark or in caves where there is often a risk of contamination, with histoplasmosis for example."


点击收听单词发音收听单词发音  

1 bug 5skzf     
n.虫子;故障;窃听器;vt.纠缠;装窃听器
参考例句:
  • There is a bug in the system.系统出了故障。
  • The bird caught a bug on the fly.那鸟在飞行中捉住了一只昆虫。
2 bugs e3255bae220613022d67e26d2e4fa689     
adj.疯狂的,发疯的n.窃听器( bug的名词复数 );病菌;虫子;[计算机](制作软件程序所产生的意料不到的)错误
参考例句:
  • All programs have bugs and need endless refinement. 所有的程序都有漏洞,都需要不断改进。 来自《简明英汉词典》
  • The sacks of rice were swarming with bugs. 一袋袋的米里长满了虫子。 来自《简明英汉词典》
3 specimens 91fc365099a256001af897127174fcce     
n.样品( specimen的名词复数 );范例;(化验的)抽样;某种类型的人
参考例句:
  • Astronauts have brought back specimens of rock from the moon. 宇航员从月球带回了岩石标本。
  • The traveler brought back some specimens of the rocks from the mountains. 那位旅行者从山上带回了一些岩石标本。 来自《简明英汉词典》
4 innovative D6Vxq     
adj.革新的,新颖的,富有革新精神的
参考例句:
  • Discover an innovative way of marketing.发现一个创新的营销方式。
  • He was one of the most creative and innovative engineers of his generation.他是他那代人当中最富创造性与革新精神的工程师之一。
5 infestations ace083e6dba5b9eb0980e4990eee3074     
n.(害虫、盗贼等)群袭,出没,横行( infestation的名词复数 )
参考例句:
  • The arrival of warm weather raises the specter of disease and increased rat infestations caused by rotting garbage. 天气转暖使人们担心垃圾腐烂会引起疾病传播和鼠群猖獗。 来自《简明英汉词典》
  • Piperazine citrate is the drug of choice in the treatment of Ascaris infestations. 枸橼酸哌嗪治疗蛔虫感染是最好的药物。 来自辞典例句
6 protocols 66203c461b36a2af573149f0aa6164ff     
n.礼仪( protocol的名词复数 );(外交条约的)草案;(数据传递的)协议;科学实验报告(或计划)
参考例句:
  • There are also protocols on the testing of nuclear weapons. 也有关于核武器试验的协议。 来自辞典例句
  • Hardware components and software design of network transport protocols are separately introduced. 介绍系统硬件组成及网络传输协议的软件设计。 来自互联网
7 larvae w2CxP     
n.幼虫
参考例句:
  • Larvae are parasitic on sheep.幼虫寄生在绵羊的身上。
  • The larvae prey upon small aphids.这种幼虫以小蚜虫为食。
8 crevices 268603b2b5d88d8a9cc5258e16a1c2f8     
n.(尤指岩石的)裂缝,缺口( crevice的名词复数 )
参考例句:
  • It has bedded into the deepest crevices of the store. 它已钻进了店里最隐避的隙缝。 来自辞典例句
  • The wind whistled through the crevices in the rock. 风呼啸着吹过岩石的缝隙。 来自辞典例句
9 mattresses 985a5c9b3722b68c7f8529dc80173637     
褥垫,床垫( mattress的名词复数 )
参考例句:
  • The straw mattresses are airing there. 草垫子正在那里晾着。
  • The researchers tested more than 20 mattresses of various materials. 研究人员试验了二十多个不同材料的床垫。
10 fleas dac6b8c15c1e78d1bf73d8963e2e82d0     
n.跳蚤( flea的名词复数 );爱财如命;没好气地(拒绝某人的要求)
参考例句:
  • The dog has fleas. 这条狗有跳蚤。
  • Nothing must be done hastily but killing of fleas. 除非要捉跳蚤,做事不可匆忙。 来自《简明英汉词典》
TAG标签: bed bugs vacuum
发表评论
请自觉遵守互联网相关的政策法规,严禁发布色情、暴力、反动的言论。
评价:
表情:
验证码:点击我更换图片