As early as 1910 Ross recommended bed nets as a protection against infective bites of vector anophelines. Bed nets also provide an efficient protection against many other biting insects and are an element of comfort. But despite this protective effect they did not significantly decrease the risk of infection and of morbidity in highly endemic areas (Snow et al., 1988a). Impregnation of bed nets...

The image provided by Tomoya Takada and colleagues shows a cross-sectional SEM micrograph of acrylic denture base resin impregnated with nanodiamond (ND). This study aimed to evaluate the effect ND impregnation on thermal conductivity commercially available resins. It was found that maximum when small amount NDs. colors ND-impregnated resins were also compared using spectrophotometric measureme...

An attempt was made to apply Mn-impregnated acrylic fiber to the collection of small amounts of Ra isotopes in natural waters. The Mn compound incorporated in this material was estimated to be KMn8O16•E H2O, which occurred naturally in Japan as cryptomelane. Collection by the Mn-impregnated acrylic fiber was effective in the pH region higher than 4 and the collecting efficiency was dependent on...

A prospective randomized clinical trial comparing the use of a new iodophor-impregnated incise drape with a standard skin preparation technique in 1102 patients undergoing abdominal surgical procedures is reported. The effect of the incise drape on wound bacterial contamination and subsequent wound infections is compared. The iodophor-impregnated plastic incise drape reduced the contamination o...

Filter paper discs were impregnated with a solution containing 20 mg of triphenyltetrazolium chloride per millilitre, and used in the typing of catalase-positive Campylobacter species. Also used were filter paper discs impregnated with cephalothin at 30 micrograms/ml, 60 micrograms/ml and 3 mg/ml and nalidixic acid at the same concentrations, as well as commercially available discs containing 3...

The present paper shows through conventional light microscopy, silver nitrate impregnation and Transmission Electron Microscopy, the changes in nuclear activity that occurs in the ovary cells during vitellogenesis of Apis mellifera (Linnaeus, 1758). The material impregnated by silver nitrate was detected in nurse cells, oocyte germinal vesicle and follicular cells, whose amounts are greater in ...

& 2014 Ame Background: Because of frequent exposure to tick habitats, outdoor workers are at high risk for tick-borne diseases. Adherence to National Institute for Occupational Safety and Health recommended tick bite prevention methods is poor. A factory-based method for permethrin impregnation of clothing that provides long-lasting insecticidal and repellent activity is commercially available,...

the oil-paper insulation is a type of an inexpensive combination insulation system in oil-filled power transformers. in this study the dielectric and strength properties of canola oil and mineral oil impregnated hand-sheet papers were investigated. all hand sheets were made of unbleached bagasse soda pulp with two different freeness levels of 200 ± 25 ml, csf and 400± 25 ml,csf. after drying th...

Methods are described for the separation of oligodeoxyribonucleotides and oligoribonucleotides by chromatography on thin layers of cellulose impregnated with polyethyleneimine.

The breakdown property of oil-impregnated paper is a key factor for converter transformer design and operation, but it is not well understood. In this paper, breakdown voltages of oil-impregnated paper were measured at different temperatures. The results showed that with the increase of temperature, electrical, electro-thermal and thermal breakdown occurred successively. An electro-thermal brea...