نتایج جستجو برای: synthetic pyrethrins

تعداد نتایج: 141927  

Journal: :Indian journal of experimental biology 2008
Renu Agarwal S K Gupta Sushma Srivastava S S Agrawal Rohit Saxena

In normotensive rabbits topical application of Daucus carota seed extract at the concentration of 0.3, 0.6 and 1.2% resulted in mean IOP reduction of 19.33. 23.20 and 25.61% respectively from baseline. As no significant difference was observed between the change in IOP in 0.6 and 1.2% extract treated groups, 0.6% concentration was chosen for further evaluation in rabbits with experimentally ele...

Journal: :environmental health engineering and management 0
ali asghar najafpoor health sciences research center, department of environmental health engineering, school of health, mashhad university of medical sciences, mashhad, iran abbas sadeghi health sciences research center, department of environmental health engineering, school of health, mashhad university of medical sciences, mashhad, iran hossein alidadi health sciences research center, department of environmental health engineering, school of health, mashhad university of medical sciences, mashhad, iran mojtaba davoudi health sciences research center, department of environmental health engineering, school of health, mashhad university of medical sciences, mashhad, iran batoul mohebrad environmental health engineering, school of health, mashhad university of medical sciences, mashhad, iran ahmad hosseinzadeh environmental health engineering, student research committee, school of health, mashhad university of medical sciences. mashhad, iran

background: phenol, as a pure substance, is used in many fields because of its disinfectant, germicidal, local anesthetic, and peptizing properties. aqueous solutions of phenol are produced as waste in industries and discharged into the environment. therefore, elevated concentrations of phenol may be found in air or water because of industrial discharge or the use of phenolic products. method: ...

Journal: :iranian journal of applied animal science 2015
n. bhaskar l. shahani

we studied the hepatotoxic effects of a deltamethrin containing formulation (decis®) on developing em-bryo of gallus domesticus. fertilized eggs were immersed in three different concentrations of deltamethrin (12.5, 25 and 50 mg/l) for 60 min at 37 ˚c prior to incubation (ed 0) and on the 4th day of incubation (ed 4) and incubated till embryonic day (ed) 16. exposure to 50 mg/l of deltamethrin ...

Journal: :iranian journal of mathematical chemistry 2014
peyman valipour mansour mafi mahshid faridi

in the present work the magnitudes of pigments in the synthetic leather, were measured by means of scanner. initially synthetic leather samples pigmented by three different pigments of yellow, blue and red colors were prepared. then the pigmented samples were scanned, and the values of rgb of images were calculated. the artificial neural network (ann) method used to make relation between rgb va...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2012
sepideh javanshir mahmoud abdollahy hossein abolghasemi ahmad khodadadi darban

modern hydrometallurgical techniques have been adopted to produce high-purity gold. many extractants were used for the extraction of gold from various synthetic solutions from which dibutyl carbitol (dbc) had a unique superiority. kinetics of process was studied in this paper and the influence of several parameters such as stirring speed, agitation time, impeller type, interfacial area, [aucl4]...

Journal: :global journal of environmental science and management 2015
v. k. gupta s. khamparia i. tyagi d. jaspal a. malviya

water plays a vital and essential role in our ecosystem. this natural resource is becoming scarce, making its availability a major social and economic concern. use of a large variety of synthetic dyes in textile industries has raised an hazardous environmental alert. about 17 - 20% of freshwater pollution is caused by textile effluents. these effluents are recalcitrant to biodegradation and cau...

منیری‌فر, حسن,

     Salt stress is one of the most important environmental constrains that limited agricultural productivity. Salinity stress is also one of the most important obstacles worldwide that production of tolerant cultivars may reduce its problems. In present study, from five promising alfalfa lines, elite genotypes were selected and individually transplanted into isolated polycross nursery for impr...

1994
Arcady Meyer

Abstract This paper provides an overview of various research e orts that aim at designing adaptive animats i e synthetic animals able to survive in synthetic worlds The control architectures of these animats are either programmed by a human designer or more or less automatically determined by means of nature mimicking processes such as learning evolution and develop ment The paper concludes wit...

Journal: :ACS chemical biology 2008
Jay D Keasling

The richness and versatility of biological systems make them ideally suited to solve some of the world's most significant challenges, such as converting cheap, renewable resources into energy-rich molecules; producing high-quality, inexpensive drugs to fight disease; and remediating polluted sites. Over the years, significant strides have been made in engineering microorganisms to produce fuels...

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