Studies on the insect-resistance to insecticides : XII. Control of the DDT resistant house fly by DDT containing some synergists

CONTROL OF ODONTJUA BY DDT and BHC INSECTICIDES

A paper on the subject of grass-grub and subterranean caterpillar control was read at the -1950 Grassland Conference at Invercargill; the work has been continued and the Ashburton Station has issued a pamphlet giving more definite recommendations than in the previous paper. The present paper is confined to control ,of grass-grubs, but the same treatment will automatically kill porina (subterran...

control of the optical properties of nanoparticles by laser fields

در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...

extensions of some polynomial inequalities to the polar derivative

توسیع تعدادی از نامساوی های چند جمله ای در مشتق قطبی

The secret of DDT-resistant mosquitoes

Can the polling location where people vote affect how they vote? During voting in U.S. elections, the right to free speech is temporarily and selectively curtailed: signage and amplified sounds are prohibited near polling locations, which include schools and churches. The government justifies the restrictions by citing the greater importance of enabling citizens to vote freely. But, as Jonah Be...

Effects of Ddt and Other Insecticides on Fish and Wildlife