نتایج جستجو برای: 200 and 400 ppm

تعداد نتایج: 16857388  

Journal: :Silicon 2021

In the present study, we report fabrication of n-ZnO/p-Si++ hetero-junction devices for detection hydrogen leakage in ambient air environment. For devices, high quality ZnO thin films are grown by controlled thermal evaporation technique on highly doped p-type silicon substrates at 400 oC. The two sets deposited o C further annealed 500 and 600 oC to examine effect annealing temperature structu...

Barzegar , M , Fathi, A, Sahari , MA, Zangiabadi , M ,

Background: Autoxidation is considered to be the main route of edible oil deterioration, which produces undesirable odors and flavors during storage and heating. The unpleasant flavor of oxidized oil has been attributed to primary and secondary products of unsaturated fatty acids. The microwave heating is a rapid method when compared with other methods of heating. Objective: In this research, ...

Journal: :The Journal of applied poultry research 2022

There is still a need for the evaluation of alternative feed additives, including organic acids such as butyric acid, when fed in broiler diets without antibiotic growth promoters. The removal or limitation promoting antibiotics from commercial production changes opportunities additives poultry industry and allows replacement that may not have been cost effective are available. Therefore, an ex...

Journal: :Toxicology and applied pharmacology 1979
F J Murray K D Nitschke L W Rampy B A Schwetz

Embryotoxicity and Fetotoxicity of Inhaled or Ingested Vinylidene Chloride in Rats and Rabbits. MURRAY, F. J., NITSCHKE, K. D., RAMPY, L. W., AND SCHWETZ, B. A. (1979). Toxicol. App/. Pharmacal. 49, 189-202. The teratogenic potential of inhaled or ingested vinylidene chloride was evaluated in Sprague-Dawley rats and New Zealand white rabbits. Both species were exposed to the test material by in...

Journal: :Infection and immunity 2006
Melissa R Held Richard D Bungiro Lisa M Harrison Iqbal Hamza Michael Cappello

Hookworm infection is associated with growth delay and iron deficiency anemia in developing countries. A series of experiments were designed in order to test the hypothesis that host dietary iron restriction mediates susceptibility to hookworm infection using the hamster model of Ancylostoma ceylanicum. Animals were maintained on diets containing either 10 ppm iron (iron restricted) or 200 ppm ...

Journal: :Journal of science and medicine in sport 2011
Argyris G Toubekis Anthoula Vasilaki Helen Douda Vassilios Gourgoulis Savvas Tokmakidis

OBJECTIVES The purpose of this study was to examine the physiological responses on three interval training sets performed at intensities relative to the critical velocity which was calculated from two different combinations of distances using a 2-parameter linear model. METHODS In a controlled repeated measures design, ten male well trained swimmers (age: 15.2 ± 1.2 years) swam 5 × 400-m, 10 ...

Journal: :Boletin de la Oficina Sanitaria Panamericana. Pan American Sanitary Bureau 1957
J G REYNOLDS

Stringent conditions with regard to cleanliness are laid down for the attention of public authorities concerned with the spraying of dieldrin formulations. Protective clothing must be worn and this must be changed frequently. Personal cleanliness is imperative. Since sprayers are often operating in rugged country for days at a time it is not easy for these conditions to be followed and it has b...

2017
L. L. Greiner T. S. Stahly T. J. Stabel

Twelve replications of four littermate pigs from a herd naive for porcine reproductive and respiratory syndrome (PRRS) were weaned (10 ± 2 d of age) and penned individually in disease isolation rooms. Pigs were randomly allotted within litter to one of four dietary concentrations of soy genistein (0, 200, 400, 800 ppm) to quantify the effect of genistein on growth and immune response during a v...

A Ghaemi M Farshbaf Moghaddam R Omidbaigi VM Pourbaig

Essential oils are natural compounds, which have extensive applications in perfumery, food and pharmaceutical industries. Nowadays they are also used in preservation of foods and disinfectant production. Considering the undesirable effects of synthetic compounds on the nature and living beings, using natural compounds like essential oils have been noticed recently. Peppermint (Mentha piperita) ...

Journal: :Environmental Health Perspectives 1990
R J Laib J G Filser R Kreiling R R Vangala H M Bolt

Studies were conducted on inhalation pharmacokinetics of 1,3-butadiene and of its primary reactive metabolic intermediate 1,2-epoxybutene-3 in rats (Sprague-Dawley) and mice (B6C3F1). Investigations of inhalation pharmacokinetics of 1,3-butadiene revealed saturation kinetics of 1,3-butadiene metabolism in both species. For rats and mice linear pharmacokinetics apply at exposure concentrations b...

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