pretreatment of adults of iraq strain of afhstephenst with a sub-letlial dose of pcrmethrin resulted in a 65% enliancemenl of tolerance to this insecticide. similarly, pre-exposure of dub-lpr larvae to a sub-lethal dose of pcrmethrin resulted in increased tolerance to pcrmethrin. for the sensitive ind-s strain, the inductive effect was smaller. tiie results of bioassays of resistant and suscept...

objective(s): enzyme immobilization via nanoparticles is perfectly compatible against the other chemical or biological approximate to improve enzyme functions and stability. in this study lactoperoxidase was immobilized onto silica-coated magnetite nanoparticles to improve enzyme properties in the presence of cadmium chloride as an inhibitor. materials and methods:  the process consists of the ...

Hides are the by-product of slaughter houses which mostly used for leather production. In Canada, hides either disposed with other waste or sold at a very low price. Dehairing is prerequisite gelatin production from it. Therefore, effect hide dehairing method on subsequent extraction and quality was investigated. Bovine (BH) were dehaired using 5% acetic acid (AA), 10% calcium hydroxide (CH), 0...

s of papers 61 be mailed to laboratories. Samples can be archived for comparison and used as a source of DNA material for cloning and sequencing.

laboratory diagnosis of acute measles is usually achieved by serology assays for measle-specific igm antibody. for comparison of measle-specific igm antibody in saliva and serum, 95 paired blood and saliva samples were collected 1-14 days after the onset of rash. the specimens were tested for specific igm antibody by an igm antibody-capture enzyme immunoassay (eia). measles igm antibody was det...