نتایج جستجو برای: regeneration
تعداد نتایج: 60792 فیلتر نتایج به سال:
present research was conducted with the aim of determination of significant effect of soil properties on natural regeneration of haloxylon aphyllum and correlation coefficient and linear relation between soil variables and natural regeneration of haloxylon aphyllum. firstly, geomorphologic units were prepared in the areas under cultivation of haloxylon aphyllum in ardestan. two cultivated lands...
Regeneration and forest durability guarantee is one of the most important aspects of forest sustainability and it should be placed in forest plans priority. To compare regeneration in the two grazed and non-grazed forest, Baghe-shady forest located in Khatam city (it has the preservative regions that they are 20 years old), Yazd province, Central of Iran was selected. For this purpose, 60 sampl...
In order to optimize direct regeneration of potato cultivars (Solanum tuberosum L.) including Arinda, Agria, Sante, Maradona and Marfona, a factorial experiment was carried out in the form of completely randomized design with three replications. Internode explants were placed on MS medium supplemented with different concentrations of 6-Benzylaminopurine (1, 2, 5, 10 and 15 mg/l) in combination ...
hydrogen can be produced for fuel cell applications by using methanol steam reforming reaction. in this article, a method was developed for regeneration of accelerated deactivated methanol-steam-reforming catalyst. successive deactivation–regeneration cycles were studied in a 250 hours test for the first time including 6 regeneration cycles. it is shown that regeneration of the catalyst in dilu...
Extended Abstract Introduction and Objective: Sesame is an ancient oilseed plant known for its medicinally important lignans and its high quality edible oil. ptimization of tissue culture in order to achieve high frequency regeneration is the first step for genetic transformation. the plant recalcitrant to plant tissue culture thus limiting the use of modern biotechnology for its genetic impro...
Among different doses of gamma rays, 1.5 kR induced 71.84% callus in Basrnati rice in amodified MS medium and 2% redifferentiation under anon-saline environment, 20% callusing response with 7.5%,2.8% and 2.5% redifferentiation was induced by 2.0 kR at electrical conductivity (EC) of 4,s and 6 dS.m of NaCl respectively, in regeneration medium. A non-irradiated non-saline environment reveale...
نوسازی و بهسازی شهری اقدام مداومی است که در روند شهرسازی شهرهای تاریخی صورت میگیرد.هدف از اقدام نوسازی و بهسازی ،تجدید حیات سازمان فضایی و کالبدی است. احیای محله های تاریخی شهرها ، هم مستلزم نوسازی بافت کالبدی و هم استفاده اقتصادی فعال یا بهره برداری از بناها و فضاها است.بازآفرینی شهری با هدف ارتقاء مهارت هاو ظرفیت ها شهروندان را در مشارکت و بهره مندی از فرصت ها توانا می سازد، رویکرد بازآفرینی ...
background: peripheral nerves may be damaged during an injury and its current standard treatment is using an autologous nerve. objectives: the purpose of this experimental study is to evaluate and compare the histological results of nerve regeneration after using the eggshell membrane (esm) guidance channel with autograft. materials and methods: thirty adult male rats were divided into three ex...
conclusions the results of this study showed that the meticulous microsurgical nerve repair, which was performed using the vein tubulization induced significantly better sciatic nerve regeneration. however, the addition of bone marrow mesenchymal stem cell to vein conduit failed to promote any significant changes in regeneration outcome. results all animals tolerated the surgical procedures and...
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