نتایج جستجو برای: ld50 و lt50
تعداد نتایج: 763271 فیلتر نتایج به سال:
Face recognition is important in human identification. The biological recognition technique acts as a good method and broad applications in security areas. This work presents a method to improve the face recognition accuracy using a combination of Principal Component Analysis (PCA), and Wavelet Transform. Wavelet Transform is used to decompose the input image with different levels and rearrange...
objectives: mentha longifolia l. (lamiaceae) is an annual herb that is used in the iranian traditional medicine for treating stomach and intestinal disorders. the purpose of this study was to determine the protective effect of m. longifolia on experimental diarrhea in a rat model. materials and methods: the antidiarrheal activity of essential oil of m. longifolia (20-80 mg/kg) was investigated ...
Lipas jerman telah resisten terhadap berbagai macam insektisida, dibuktikan dengan adanya kasus resistensi lipas yang dilaporkan terjadi di beberapa wilayah Indonesia. Meskipun demikian, Kota Purwokerto sampai saat ini belum ada laporan mengenai tersebut. Tujuan khusus penelitian adalah mengetahui status dari tiga pasar tradisional fipronil. Metode digunakan metode kontak dan umpan menggunakan ...
The frost hardiness of many plants such as chickpea can be increased by exposure to low non-freezing temperatures and/or the application of abscisic acid (ABA), a process known as frost acclimation. Experiments were conducted to study the response over a 14 d period of enriched plasma membrane fractions isolated from chickpea plants exposed to low temperature and sprayed with exogenous ABA. Mea...
صخلملا Infertility affects 15% of couples seeking children worldwide and male factor is evident in about 30-50% of the cases. To assess the effect of sperm chromatin integrity on the outcomes of intracytoplasmic injection, sperm DNA compactness was evaluated by acridine orange staining in 40 fertile and 44 infertile men attending one infertility clinic. The results showed no significant differe...
صخلملا The search for novel anticancer drugs continues. This work includes a preliminary study of the effect of two crude extracts of Greek or Mediterranean sage (Salvia triloba L. f.) on three malignant human cell lines and one malignant murine cell line. A boiling water extract and a methanolic extract were prepared from dried leaves of S. triloba. Yields of extraction were 9.8 and 22.4%, res...
تحمل به تنش سرما ویژگی اقتصادی مهمی در گندمهای زمستانه است که توانایی تحمل گیاه را در دماهای پایین انجماد مشخص میکند. برای شناسائی ناحیههای ژنومی مرتبط با تحمل به دماهای پایین در گندمهای هگزاپلویید، جمعیت F2:3 حاصل از تلاقی والد زمستانه متحمل به سرما، میرنووسکایا 808 (LT50 = -20°C) و والد بهاره حساس به سرما، پیشتاز (LT50 = -7°C)، استفاده شد. LT50، سطح دمائی که 50 درصد از گیاهان در آن زنده ...
neospora caninum (n. caninum) is an apicomplexan parasite and causes abortion and congenital neosporosis in cattle worldwide. in this study, we evaluate the virulence of a n. caninum isolate on mouse strain c57bl/6. six groups of five mice c57bl/6 were intraperitoneally inoculated with 1 × l07, 1.5 × l07, 2 × l07, 3 × l07 and 4 × l07 tachyzoites and a control inoculum of dmem, respectively. cli...
background: mannitol is present in the ethyol ® (the trade name of amifostine) as an excipient. the mechanism of radioprotection of amifostine is radical scavenging. since mannitol is another known radical scavenger, we studied the probable additive or synergistic effect of mannitol on the effect of amifostine. material and methods: mice were irradiated with co-60 γ -ray in the presence 400mg/k...
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