نتایج جستجو برای: cell aggregates and callus fragments were incubated onto pgob media supplemented with different salt concentrations 0
تعداد نتایج: 18936220 فیلتر نتایج به سال:
abstract while task-based instruction is considered as the most effective way to learn a language in the related literature, it is oversimplified on various grounds. different variables may affect how students are engaged with not only the language but also with the task itself. the present study was conducted to investigate language and task related engagement on the basis of the task typolog...
Abstract Background and purpose: The most common serum used in culture media is fetal bovine serum (FBS). Given that FBS is costly, this study aimed at evaluating the hydatid cyst fluid (HCF) as a substitute for FBS in culture medium of fibroblast cells isolated from rat. Materials and methods: In this experimental study, skin dermal area from inguinal and abdomen of rat were used for fibro...
چکیده در این پژوهش، رابطه بین سبک های مقابله ای با جرأت ورزی و پرخاشگری در دانشجویان دانشگاه بین المللی امام خمینی (ره) بررسی شد. نمونه مورد بررسی، شامل 200 نفر (121 زن و 79 مرد) از دانشجویان دانشگاه مورد نظر در دو جنس است که از طریق روش نمونه گیری خوشه ای تصادفی، انتخاب و به پرسشنامه های الگوهای پاسخ دهی بین فردی تونند و پرسشنامه سبک های مقابله ای اندلر و پارکر پاسخ دادند. همچنین از روش های ...
the effect of learning strategies on the speaking ability of iranian students in the context of language institutes abstract language learning strategies are of the most important factors that help language learners to learn a foreign language and how they can deal with the four language skills specifically speaking skill effectively. acknowledging the great impact of learning strategies...
The study was undertaken to elucidatethe beneficial effects of goat follicular fluid (gFF) added to maturation and culture media on in vitro maturation, fertilization and post-fertilization development of oocytes in Black Bengal goats. Follicular fluid and oocytes were collected from slaughter house goat’s ovaries using the aspiration technique. Media were prepared using TCM-199 supplemented wi...
catharantus-roseus is a medicinal and ornamental plant with growing attention toward its economical value. to determine cell viability based on trypan blue and mtt assay, cell suspension from callus of catharantus-roseus were treated with different concentrations of cadmium-nitratee for 1, 3 and 6 days. also cell suspension was used to investigate the cell morphology for a period of 3 days u...
Centella asiatica, is well known to be a valuable medicinal plant for producing valuable compounds such as asiaticoside, asiatic acid, madcasoside and madcasic acid. The plant is believed to improve memory, lower blood pressure, be a strong antioxidant and anticancer. Therefore, it is important to optimize tissue culture methods in order to facilitate the extraction of medicinal compounds, gene...
Efficient procedures are outlined for plant regeneration through direct shoot bud formation and indirect organogenesis through callus formation in Ornithogalum virens Lindl using bulb scale as explant. Murashige and Skoog’s (MS) medium containing 1 mg/L (5.4mM) NAA and 2 mg/L (4.4mM) BA was most effective in direct induction of shoot buds from explant. Callus cultures were raised from the bulb ...
according to webster and wind (1972) and anderson et al (1987), “organizational buying is a complex process and involves many people from different functional areas, multiple goals and potentially conflicting decision criteria. moreover, the customers of today are also more knowledgeable and selective when making their purchasing decisions. since a key to organizational survival is the retentio...
Hypericum perforatum L. (St. Johns’ wort) is the most commercially important species of the genus Hypericum and contains a wide range of components including naphthodianthrones, phloroglucinols, tannins, xanthones, phenolic acids and essential oil. In order to establish an efficient protocol for regeneration, the effects of explant type and plant growth regulators on direct and indirect shoot r...
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