نتایج جستجو برای: 150 and 250 ppm

تعداد نتایج: 16850380  

2004
Mukund Karanjikar Bruce Tatarchuk

The present work deals with Low Temperature CO Oxidation for Fire Escape Mask development. Building and property fires often contain as high as 3600 ppm of carbon monoxide. The goal of this work is to develop a thin layer catalyst (1-5 mm) capable of reducing carbon monoxide from inlet concentrations of 3600 ppm to less than 400 ppm for at least 15 – 60 minutes while meeting other CBRN (chemica...

Journal: :Journal of occupational health 2006
Hirokazu Okuda Tetsuya Takeuchi Hideki Senoh Heihachiro Arito Kasuke Nagano Seigo Yamamoto Taijiro Matsushima

Nasal, respiratory, reproductive and developmental toxicities of propylene oxide (PO) were examined by exposing male and female Sprague-Dawley rats to PO vapor by inhalation at a concentration of 0 (control), 125, 250, 500 or 1,000 ppm for 6 h/d, 7 d/wk, during a 5- to 6-wk period, including premating, mating and postmating or gestation. The inhalation exposure to 1,000 ppm PO seriously affecte...

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Lemon balm (Melissa officinalis L.), a member of Lamiaceae family, is an important medicinal plant that has many useful properties. Micronutrients are necessary in low dose for the growth and the development of plants. Present research was conducted to study the effects of micronutrients including manganese (Mn) and copper (Cu) on morpho-physiological traits and essential oil of lemon balm. Fie...

Journal: :علوم باغبانی 0
نجمه هادی محمدکاظم سوری رضا امیدبیگی

abstract angelica archangelica, tanacetum cinerariaefolium and chelidonium majus are valuable medicinal plants for which there is no comprehensive information about their seed germination in review of literatures. with regarding of the importance of simple propagation of medicinal plants and the role of seed in production of these plants, this study was set out in order to analyzing of the effe...

Journal: :journal of chemical health risks 0
sh. chang food science and technology department, damghan branch, islamic azad university, damghan, semnan, iran a. bassiri food science and technology department, iranian research organization for science and technology h. jalali food science and technology department, damghan branch, islamic azad university, damghan, semnan, iran

lipid oxidation has adverse effect on food deterioration and human health. the antioxidant activity of fennel seed extracts (fse) was evaluated by synthetic antioxidant. its oxidative stability was compared in olive oils in concentrations of bha (75 ppm), bht(75 ppm) and  1:1 bha to bht ratio. peroxide (pv), p-anisidine (av) and totox values were evaluated to assess the extent of oil deteriorat...

Journal: :World Journal Of Advanced Research and Reviews 2022

The precise, systematic, definite, particular, linear, exact and robust scientific method was developed validated for the assay of Cypermethrin in 25% EC Insecticide Injection, USP 500 mg/vial. Presently utilized 25 % as a working standard having limit 95% development validation. quantitative determination bring to accomplished by HPLC- Waters - Alliance 510 system equipped with UV/PDA detector...

Journal: :Journal of animal science 2000
G M Hill G L Cromwell T D Crenshaw C R Dove R C Ewan D A Knabe A J Lewis G W Libal D C Mahan G C Shurson L L Southern T L Veum

An experiment was conducted to determine the effect of high dietary intakes of Zn and Cu and their combination on growth performance of weanling pigs with diverse health status and management strategies. Twelve experiment stations cooperated and used a total of 1,356 pigs that averaged 6.55 kg BW and 22.2 d age at weaning. The four dietary treatments, all of which met or exceeded NRC requiremen...

2016
Laurie Dolan Ray Matulka Jeffrey Worn John Nizio

Use of pecan shell fiber in human food is presently limited, but could increase pending demonstration of safety. In a 91-day rat study, pecan shell fiber was administered at dietary concentrations of 0 (control), 50 000, 100 000 or 150 000 ppm. There was no effect of the ingredient on body weight of males or females or food consumption of females. Statistically significant increases in food con...

Journal: :Arteriosclerosis, thrombosis, and vascular biology 2004
Hajime Fujimoto Minoru Ohno Seiji Ayabe Hisae Kobayashi Nobukazu Ishizaka Hiroko Kimura Ken-ichi Yoshida Ryozo Nagai

BACKGROUND Carbon monoxide (CO) is postulated to protect tissues against several types of injuries. We investigated the role of CO in amelioration of cardiac ischemia-reperfusion injury in vivo and the mechanisms involved in it. METHODS AND RESULTS Rats inhaled CO (250 ppm, 500 ppm, or 1000 ppm) for 24 hours in a chamber after myocardial ischemia-reperfusion induced by occluding the left ante...

Journal: :The Journal of pharmacology and experimental therapeutics 2014
Durgadevi Ravillah Altaf Mohammed Li Qian Misty Brewer Yuting Zhang Laura Biddick Vernon E Steele Chinthalapally V Rao

Epigenetic modulators, particularly histone deacetylases (HDACs), are valid targets for cancer prevention and therapy. Recent studies report that HDAC2 overexpression is associated with colon tumor progression and is a potential target for colon cancer prevention. This study tested chemopreventive and dose-response effects of Ohio State University HDAC42 (OSU-HDAC42), a selective HDAC2 inhibito...

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