نتایج جستجو برای: using squash technique and 2% (w/v) aceto
تعداد نتایج: 17756713 فیلتر نتایج به سال:
the present study sought to investigate the impact of using mind-mapping technique instruction on female elementary efl learners reading comprehension; it also investigated their attitudes towards using mind-mapping technique as a tool to improve their reading comprehension. this study followed a quasi-experimental design with two intact groups as experimental, and control groups. the participa...
In this study a method for evaluating phenotypic sex in Nile tilapia was validated. A technique that uses aceto-carmine squash mounts to stain the entire gonadal tissue for microscopic examination (Method 2squash mounts) was compared with a technique based on traditional histology. Approximately 2600 Nile tilapia fry weighing and measuring, respectively, between 0.25-2.50g and 26-53mm, aged 35 ...
abstract cooperative learning refers to small groups of learners working together as a team to solve a problem, complete a task, or accomplish a common goal. in a cooperative environment one’s success is directly related to the success of other members because the focus on the individual shifts towards the group. to test the effectiveness of the method, using jigsaw technique, a study was cond...
due to the limiting workspace of parallel manipulator and regarding to finding the trajectory planning of singularity free at workspace is difficult, so finding a best solution that can develop a technique to determine the singularity-free zones in the workspace of parallel manipulators is highly important. in this thesis a simple and new technique are presented to determine the maximal singula...
abstract in the present research solution of chalcopyrite in sulfuric acid in hydrometallurgy method using electrochemistry with cyclic voltammetry technique has been investigated. the value of maximum reduction peak current of copper ions represents the measure of solubility. in this research different parameters temperature, potential, potential exert time, chalcopyrite concentration, sulfur...
the rationale behind the present study is that particular learning strategies produce more effective results when applied together. the present study tried to investigate the efficiency of the semantic-context strategy alone with a technique called, keyword method. to clarify the point, the current study seeked to find answer to the following question: are the keyword and semantic-context metho...
Asafoetida (Ferula assa-foetida L.) is one of the endemic medicinal plants in Iran. Analysis karyomorphology and 2Cx DNA measurements (monoploid genome size) 18 Iranian Ferula populations were performed. The vitro embryo-derived root tips examined for karyological studies, via technique squash stain with 2% (w/v) aceto-orcein. Seeds samples leaves Solanum lycopersicum as standard reference (2C ...
در این پایان نامه روش های ارائه شده توسط هررو1 و تم2 در سال 2011 در مقاله ای با عنوان using the gsvd and the lifthing technique to find {p,k+1} reflexive and anti-reflexive solutions of axb=c برای پیدا کردن جواب های انعکاسی و پاد-انعکاسی {p,k+?} معادله ماتریسی axb=c بیان شده اند را بررسی می کنیم. در پایان از این روش ها برای پیدا کردن جواب های {p,?k} انعکاسی معادله ی ماتریسی axb+cx^* e=f استف...
eight accessions of thyme medicinal plant, belonging to iranian endemic thymus daënensis, t. eriocalyx, t. migricus and an unknown thymus spp species, were tested for karyotypic analysis, using squash technique and 2% (w/v) aceto-orcein staining method. chromosomal parameters examined were: short arm (s), long arm (l), total length of chromosome (tl), arm ratio (ar), r-value, total chromosome v...
Cenchrus longispinus (Hack.) Fernald (Poaceae), as a weed, is native of America, but has also been introduced in other countries including Iran in the recent years. In this study, karyotypic features in one population of this species was studied. As such, microscopic slides of root tip meristem cells were prepared using the classical squash technique and aceto-iron-hematoxylene staining. The ch...
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