نتایج جستجو برای: phosphorous insecticides

تعداد نتایج: 17493  

2012
Michael Dobmeier Josef M Herrmann Dieter Lenoir Burkhard König

The synthetic protocol for the reduction of alcohols to hydrocarbons by using hydriodic acid, first described by Kiliani more than 140 years ago, was improved to be more applicable to organic synthesis. Instead of a strongly acidic, aqueous solution, a biphasic toluene-water reaction medium was used, which allowed the conversion of primary, secondary and tertiary benzylic alcohols, in good yiel...

2003
Daniel P. Ames Bethany T. Neilson David K. Stevens

An approach to developing and using Bayesian networks to model watershed management decisions is presented with a case study application to phosphorous management in the East Canyon watershed in Northern Utah, USA. The Bayesian network analysis includes a graphical model of the key variables in the system and conditional and marginal probability distributions derived from a variety of data and ...

Journal: :Indian journal of experimental biology 2012
T Jeyalakshmi R Shanmugasundaram

Five insecticides (Bifenthrin, Deltamethrin, Etofenprox, Permethrin and Lamda cyhalothrin) recommended by WHO, at their recommended dose were compared for their efficacy and wash resistance through bioassay against mosquito vectors, Culex quinquefasciatus, Aedes aegypti and Anopheles stephensi. Etofenprox treated nettings exhibited better knockdown and mortality than the other insecticides. The...

Ahmadali Enayati Alireza Saneidehkordi Atiyeh Rafinejad Babak Shiravand Davoud Keshavarzi Hassan Vatandoost, Javad Rafinejad, Mojgan Bani-Ardalani

Background: The German cockroach (Blatella germanica) is one of the most important vectors of public health interest due to its involvement in the transmission of infectious diseases. Different insecticides are used to control cockroaches; however, resistance developed against most of insecticides has made them ineffective. Attempts should always be made to find proper alternat...

2017
Felix Book Holger Knauss Carsten Demberger Florian Mutter Giso Hahn

The phosphorous diffusion from atmospheric pressure chemical vapor deposition (APCVD) deposited phosphorus silicate glass (PSG) promises reduced process costs compared to the standard POCl3 diffusion process, since no POCl3 gas flow is necessary during the diffusion process. Therefore, much smaller or no spacing between the wafers is necessary and the throughput of the diffusion process can be ...

2007
Lola COHEN-SOLAL M. J. GLIMCHER

Non-collagenous, soluble proteins and collagen have been extracted quantitatively from freshly dissected chicken bone at 4 ûC in presence of protease inhibitors, and their content in organic phosphorus assayed. We found that non-collagenous proteins were not covalently bound to collagen in chicken bone, as in some calcified tissues. They represented 30 p. 100 of the organic matrix and bound 75 ...

Journal: :Physica. E, Low-dimensional systems & nanostructures 2009
Luqman Adams Aderemi Oki Tony Grady Hylton McWhinney Zhiping Luo

A strategy for the functionalization of single-walled carbon nanotubes is reported. The synthesis involved the conversion of fluorinated single-walled carbon nanotubes to the thiolated derivative assisted by phosphorous pentasulfide. The thiol group is then quantitatively oxidized to the sulfonic acid group. The extent of oxidation of the thiol precursor is confirmed using X-ray photoelectron s...

2012
Hanem Fathy Khater

Pest insects can damage agricultural crops, consume and/or damage harvested food, or transmit diseases to humans and animals. The past 30 years has witnessed a dramatic reemergence of epidemic vector-borne diseases throughout much of the world (Atkinson, 2010). Prior to the development and commercial success of synthetic insecticides in the mid1930s to 1950s, botanical insecticides were the for...

ژورنال: علوم آب و خاک 2007
عبدالمجید لیاقت, , علیرضا حسن‌اقلی, , مهدی میراب‌زاده, ,

Increased chemical compounds in soil are the most important results of irrigation with domestic wastewater and treated effluents which contain some nutrients such as phosphorous (P). This process could increase the soil fertility, leading to the decrease of chemical nutrient consumption and consequently the cost of agricultural production. A research project was carried out in Tehran region for...

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