نتایج جستجو برای: morphology
تعداد نتایج: 145832 فیلتر نتایج به سال:
the systematics, morphology, distribution, biology, economic importance and conservation of the spiny eel ( mastacembelus mastacembelus ) of iran are described, the species is illustrated, and a bibliography on this fish is provided. the single species is distributed in southern iranian basins, including karkheh, karun, jarrahi and helleh river basins, mostly part of the tigris river and persia...
the silversides or sand smelts are found in coastal areas of temperate to tropical seas and in fresh water. there are about 14 genera and 68 species with only one native species in the caspian sea basin, atherina caspia . in this review, the systematics, morphology, distribution, biology, economic importance and conservation of the caspian silverside of iran are described, the species is illust...
دانه گرده چهار گونه از آدونیس های ایران شامل: adonis wolgensis stev. ، adonis aestivalis l. ، adonis dentata del. و adonis flammea jacq. توسط دستگاه میکروسکوپ الکترونی نگاره (sem)، مورد مطالعه و بررسی قرار گرفت. در طی این مطالعه 10 خصوصیت مختلف گرده شناسی سنجیده و اندازه گیری شدند. تمامی دانه های گرده بررسی شده سه شیاره (tricolpate) می باشند، تزئینات دیواره خارجی دانه گرده(exin) در دو تی...
titanium dioxide is one kind of important materials, which has been extensively investigated because of its unique electronic and optical properties. a large number of efforts have been made to synthesize tio2 materials with different methods. in this review paper, we summarize the synthesis pathways, morphology, as well as crystallization of the nanostructured tio2. in addition, we also mentio...
In recent years, construction-based approaches to morphology have gained ground in the research community. This framework is characterized by assumption that mental lexicon extensive and richly structured, containing not only a large number of stored words but also wide variety generalizations form schemas. review explores two theories, Construction Morphology Relational Morphology. After outli...
Semen analysis, sperm DNA fragmentation (SDF) and hypo-osmotic swelling test (HOST) are usually performed for the evaluation of sperm fertilizing ability. There are some debates over the necessity of SDF and HOST incorporation in male infertility work-up.Semen of 77 men was evaluated by SDF and HOST through three semen analyses. Sperm parameters were arranged into different categories: <5%, 5-1...
introduction: knowledge of the anatomic location and dimension of the molar pulp chamber may preserve healthy pulp during operative procedure and reduce risk of perforation of chamber during access preparation. a review of literatures regarding the morphology of pulp chamber however revealed very little information; so the aim of this in vivo study was to measure the dimensions of first molar p...
چکیده ندارد.
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید