《蚊对》是明代方孝孺的一篇散文,选自《逊志斋集》卷六。文章以天台生被群蚊叮咬,责骂童子为引子,引出童子的一段尖锐的答话。话中指斥了剥削者比蚊子尤为厉害,“乘其同类之间而陵之,吮其膏而盬其脑,使其饿踣于草野,离流于道路”,血淋淋的剥削压迫事实,比蚊子叮人更为残酷。更为甚者,他们的“呼天之声相接”,但却“无恤之者”。但作者只是站在传统儒家仁政思想的基础上来说的,不可能认识到阶级的压迫与剥削。文章绘声绘色,写得颇为生动。
目的了解四川省主要媒介按蚊对菊酯类杀虫剂的敏感性,为继续使用菊酯类杀虫剂控制媒介按蚊提供依据。
Objective to make a clear understanding of the sensitivity of main malaria vectors to pyrethroid in Sichuan province and to provide the evidence for using pyrethroid to control Anopheles.
疟疾的病原物- - -疟原虫,已经对化学处理有了抗性。所以,通过杀蚊,即使有抗性的疟原虫也没有机会再侵染人了。
The malaria causing parasite, Plasmodium, has already developed resistance to chemical treatments. So by killing the mosquitoes, even the drug-resistance parasites never get a chance to infect people.
通过对14条食蚊鱼的上百次实验测试,Agrillo的研究小组发现这些食蚊鱼始终可以分辨出数量2和数量3(PLoS ONE, vol 4, e4786)。
Across hundreds of trials on 14 different fish, Agrillo's team found they consistently discriminated 2 from 3 ( PLoS ONE, vol 4, e4786).
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