نتایج جستجو برای: 2 250
تعداد نتایج: 2562995 فیلتر نتایج به سال:
We evaluated the sensitivity and dose dependency of radiation-induced injury in hematopoietic stem/progenitor cells. Adult C57BL/6 mice were daily exposed to 0, 2, 10, 50, and 250 mGy γ-ray for 1 month in succession, respectively. The damage of hematopoietic stem/progenitor cells in bone marrow were investigated within 2 hours (acute phase) or at 3 months (chronic phase) after the last exposure...
Overexpression of the c-erbB-2 protein (gp185c-erbB-2) is correlated with a tumorigenic phenotype and may contribute to disease progression. We have reported previously on an anti-gp185c-erbB-2 antibody, TAb 250, that inhibits in vitro and in vivo growth of breast and ovarian cell lines that overexpress the protein and enhances the inhibitory activity of cisplatin (CDDP). To assess whether CDDP...
بمنظور بررسی اثر مقادیر مختلف کود نیتروژن و تراکم کاشت بر شاخص های رشد، عملکرد، اجزای عملکرد و درصد روغن دانه کدوی تخم کاغذی (cucurbita pepo l. )آزمایشی به صورت کرت های خرد شده بر پایه طرح بلوک های کامل تصادفی با دوعامل و سه تکرار در سال زراعی 89-1388 در مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه فردوسی مشهد انجام شد. عامل کرت اصلی کود نیتروژن، شامل سه سطح 150، 250 و 350 کیلوگرم در هکتار و عامل کرت...
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The two-point correlation function, , of Lyman-forest is found to be large, = 1:8 +1:6 ?1:2 , > 90% conndence level, on the scale of 250-500 km/s for a sample of absorbers (0 < z < 1:3) assembled from HST Key Project Observations. This correlation function is stronger than at high redshift (z > 1:7) where 0:2 for velocities > 250 km/s.
1. The oxidation of p-dimethylaminomethylbenzylamine by purified placental diamine oxidase was followed by measuring the change in E250 caused by the production of p-dimethylaminomethylbenzaldehyde. 2. The inhibition of this reaction by substrate analogues such as isothiouronium, guanidinium, dimethylsulphonium and trimethylammonium compounds was extensively studied. 3. The type and degree of i...
The potential use of expanded polystyrene (EPS) beads for control of Aedes triseriatus was tested in the laboratory and the field. Laboratory studies showed that beads present in amounts which persisted throughout a season significantly reduced the emergence of Ae. triseriatus adults by preventing normal eclosion from the pupae. In the field, tree holes containing EPS beads had significantly fe...
The autofluorescence intensity of bacteria and fungal spores was quantified by fluorescence microscopy in order to obtain the information for evaluating fluorescence-based bioaerosol detectors and was comparable to that of some types of polystyrene microspheres (PSMs). Although the intensity for microbes was distributed across a wide range over an order of magnitude in gray scale, it was in the...
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