نتایج جستجو برای: lethal effects

تعداد نتایج: 1579563  

Journal: :بهره برداری و پرورش آبزیان 0
احمدرضا پیرعلی زفره ئی دانش آموخته کارشناسی ارشد ، گروه شیلات، دانشکده منابع طبیعی، دانشگاه صنعتی اصفهان امیدوار فرهادیان دانشیار، گروه شیلات، دانشکده منابع طبیعی، دانشگاه صنعتی اصفهان مریم فلاح دانش آموخته کارشناسی ارشد، گروه محیط زیست، دانشکده منابع طبیعی،دانشگاه صنعتی اصفهان

aquatic environments are often contaminated by various industrial, agricultural and domestic sewage, while different pesticides have markedly different effects on aquatic life. scenedesmus spp. are often used as an indicator to show changes in physico-chemical and environmental conditions of the aquatic ecosystems. this study aimed to investigate the effects of different concentrations of pesti...

Journal: :iranian journal of toxicology 0
ایمان زارعی iman zarei department of environmental sciences, university of birjand, birjand, iran. علیرضا پورخباز alireza pourkhabbaz department of environmental sciences, university of birjand, birjand, iran. حسین علی پور hossein alipour department of environmental sciences, university of birjand, birjand, iran. سید حسین خزاعی sayyed hossein khazaei department of environmental sciences, marine science and technology university, khoramshahr, iran

background: the development of toxicity tests regarding toxic responses of different fish species could be more effectively used in predictive toxicology and risk assessment. in this study lethal concentrations (lc50-96 h) values of copper sulphate an important toxic industrial pollutant, on capoeta fusca were determined. behavioral changes at different concentrations of cuso4 were determined f...

In this study, Mesobuthus gibbosus and Mesobuthus eupeus eupeus venom samples were compared for lethality, in vivo effects and proteins. Neutralization capacity of monovalent Androctonus crassicauda antivenom (RSHA anti-Ac) was tested against the lethal effects of the venoms.Venom was obtained from mature scorpions by electrical stimulation of the telson. The lethality of the venom and potency ...

Adebayo Liasu Ogunkanmi, Bola O Oboh, Chibuisi Gideon Alimba, Khalid Olajide Adekoya,

Background: There is unprecedented increase in the processing and packaging of many plant materials into food supplements, herbal medicine, skincare and cosmetic products for human needs. Baphia nitida is used for topical skincare products. Toluene, a toxic aromatic solvent, is increasingly being used in the production of these skincare and cosmetic products in many industries. This study ass...

Journal: :international journal of advanced biological and biomedical research 2014
t.o. ikpesupp l.i.n. ezemonye

objective: the toxic effects of sublethal concentrations of endosulfan on oreochromis niloticus was examined using bioaccumulation and histopathology studies of the liver as toxicological endpoint.  methods: the organization for economic cooperation and development #407 recommended static renewal bioassay was employed during the test .the test fish were exposed to sub-lethal concentrations sepa...

Journal: :iranian journal of medical physics 0
ashkan salajegheh department of radiology, school of paramedical sciences, shiraz university of medical sciences, shiraz, iran mehdi hoseini medical physics department, school of medicine, mashhad university of medical sciences, mashhad, iran mina nouri department of radiology, school of paramedical sciences, mashhad university of medical sciences, mashhad, iran rasool dehghani soltani student research committee, kerman university of medical sciences, kerman- iran yaser masoumi-ardakani physiology research center, institute of neuropharmacology, kerman university of medical sciences, kerman, iran

introduction it has long been known that ionizing radiation can lead to detrimental effects in normal cells. in this light, radioprotective chemicals have been used to decrease morbidity or mortality caused by ionizing irradiation. this study aimed to evaluate the radio-protective effect of n-acetylcysteineagainst radiation-induced mortality in male mice. materials and methods 52 healthy male m...

L.I.N. Ezemonye T.O. Ikpesupp,

Objective: The toxic effects of sublethal concentrations of endosulfan on Oreochromis niloticus was examined using bioaccumulation and histopathology studies of the liver as toxicological endpoint.  Methods: The Organization for Economic Cooperation and Development #407 recommended static renewal bioassay was employed during the test .The test fish were exposed to sub-lethal concentrat...

In this study, Mesobuthus gibbosus and Mesobuthus eupeus eupeus venom samples were compared for lethality, in vivo effects and proteins. Neutralization capacity of monovalent Androctonus crassicauda antivenom (RSHA anti-Ac) was tested against the lethal effects of the venoms.Venom was obtained from mature scorpions by electrical stimulation of the telson. The lethality of the venom and potency ...

Journal: :Journal of bacteriology 1969
K Y Huang M E Landay

Prior treatment of mice with poly I:C or NDV enhanced the lethal effect of E. coli or B. dermatitidis endotoxins.

2005
Olivier Armantier

Reproduction partielle permise avec citation du document source, incluant la notice ©. Short sections may be quoted without explicit permission, if full credit, including © notice, is given to the source. CIRANO Le CIRANO est un organisme sans but lucratif constitué en vertu de la Loi des compagnies du Québec. Le financement de son infrastructure et de ses activités de recherche provient des co...

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