نتایج جستجو برای: ld50 و lt50

تعداد نتایج: 763271  

Journal: :General pharmacology 1997
O T Ginawi O A al-Shabanah S A Bakheet

1. The effect of methamphetamine on morphine-dependent mice was investigated by calculating the LD50 (i.p.), measuring motor activity, anorectic actions, and body temperature. 2. Methamphetamine was more toxic in morphine-dependent mice (LD50 = 20.6 mg/kg) than in normal mice (LD50 = 43.2 mg/kg). 3. Methamphetamine-induced locomotor activity was greater in morphinized than in nonmorphinized mic...

Journal: :Folia Pharmacologica Japonica 1957

2012
Ayşegül Burçin YILDIRIM Saim ÖZDAMAR

Özet: Bu çalışmada, Kayseri bölgesinde tarım alanlarında kullanılan insektisitlerden biri olan diazinonun testis dokusuna olan etkilerinin histokimyasal olarak araştırılması amaçlanmıştır. Araştırmada kullanılan sıçanlar 5 gruba ayrıldı. Birinci deney grubuna 1 gün LD50 dozunun (1250 mg/kg) 1/10’u, ikinci deney grubuna 2 gün LD50 dozunun 1/20’si, üçüncü deney grubuna 4 gün LD50 dozunun 1/40’ı, ...

Journal: :Veterinary parasitology 1996
N Maingi H Bjørn S M Thamsborg H O Bøgh P Nansen

The occurrence of anthelmintic resistance in 15 goat herds in Denmark was investigated using the faecal egg count reduction test (FECRT), egg hatch assay (EHA) for thiabendazole (TBZ) and a microlarval development assay (LDA) for TBZ, levamisole (LEV) and ivermectin (IVM). Resistance to both benzimidazole (BZ) and levamisole (LEV) anthelmintics was detected on six farms, and to both BZs and IVM...

2011

* ايجولونكت دهعم – دادغب , ينقتلا ميلعتلا ةئيه / دادغب ** مسق ةسدنه نداعملاو جاتنلاا , ةيجولونكتلا ةعماجلا / دادغب *** ايجولونكتلاو مولعلا ةرازو / دادغب 497 مييقت لكآتلا ةمواقم طاسوا يف ةيتيركنوكلا ةناسرخلا ةيوقت يف مدختسملا ديدحلل ةفلتخم ةيئام بوقعي فسوي ثيل * شابك ةرهزلا دبع لحز ** و حلاص دمحم قفوم *** 2010/12/21 خیرات میدقتلا : 2011/6/2 خیرات لوبقلا : ةصلاخلا ف حيلستلا ديدحل ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه محقق اردبیلی - دانشکده کشاورزی 1390

برای ارزیابی مقاومت به یخ زدگی و بررسی میزان تنوع ژنتیکی ژنوتیپ های جو از لحاظ صفات مورفوفیزیولوژیک، نشانگرهای پروتئینی و مولکولی و بررسی ارتباط آن ها، 20 ژنوتیپ جو در مزرعه و گلخانه مورد بررسی قرار گرفت. تجزیه واریانس صفات تنوع قابل ملاحظه ای را بین ژنوتیپ ها نشان داد. تاثیر دمای خوگیری بر روی تغییرات میزان پرولین، حداکثر عملکرد کوانتومی فتوسیستم ii، میزان کلروفیل و میزان قندهای محلول بررسی شد...

2015
Zachary C. DeVries William R. Reid Stephen A. Kells Arthur G. Appel Brian T. Forschler

Bed bugs, Cimex lectularius L., are a major pest in the urban environment. Their presence often results in physical, psychological, and financial distress of homeowners and apartment dwellers. Although many insecticide bioassays have been performed on this pest, little attention has been paid to bed bug feeding status, which is closely linked to metabolism, molting, and mass. Therefore, we eval...

Journal: :علوم گیاهان زراعی ایران 0
رضاقلی میرفخرایی محسن مردی علیرضا طالعی سیروس محفوظی عباسعلی زالی

low- temperature (lt) tolerance is an economic trait in winter wheat that determines the plants’ ability to successfully cope with below freezing temperatures. to identify the genomic regions associated with lt tolerance in hexaploid wheat, an f2:3 population was produced from crossing between winter type and tolerant parent, mirnovoskaja 808 (lt50 = -20oc), and spring type and susceptible pare...

2014
Samuel K Maynard Peter Edwards James R Wheeler

Environmental safety assessments for exposure of birds require the provision of acute avian toxicity data for both the pesticidal active substance and formulated products. As an example, testing on the formulated product is waived in Europe using an assessment of data for the constituent active substance(s). This is often not the case globally, because some countries require acute toxicity test...

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