نتایج جستجو برای: stage randomized sampling method based on cochran
تعداد نتایج: 9988966 فیلتر نتایج به سال:
the purpose of present research was studying the educational need assessment of greenhouse holders growing ornamental plants and flowers about applying alternative energies. this research is application with descriptive- correlative method. statistical community was 499 subjects of greenhouse holders of ornamental plants and flowers in tehran province. by using simple random sampling method and...
in order to evaluate effects of iron, zinc and manganese, and the methods of applying them on yield and yield components of sweet corn (zea mays saccharata), an experiment was performed as factorial based on randomized complete block design with four replications at the research farm of urmia university. experimental factors were micronutrient fertilizers with four levels (control, iron, zinc a...
1.0 overview it seems that grammar plays a crucial role in the area of second and foreign language learning and widely has been acknowledged in grammar research. in other words, teaching grammar is an issue which has attracted much attention to itself, and a lot of teachers argue about the existence of grammar in language teaching and learning. this issue will remind us a famous sentence f...
an investigation into oral interaction in language classes: a conversation analytic point of view the aim of this thesis is to analyze the interaction between language teachers and students in english language institutes. this work is done in the context of yasuj city. learning another language, which is in most cases english, involves many variables. one of these variables is the linguistic...
the application of e-learning systems - as one of the solutions to the issue of anywhere and anytime learning – is increasingly spreading in the area of education. content management - one of the most important parts of any e-learning system- is in the concern of tutors and teachers through which they can obtain means and paths to achieve the goals of the course and learning objectives. e-learn...
In the digital age, there are many opportunities and threats around knowledge-based companies that can affect their success. In order to plan for competitive strategies, new tools are needed that make business intelligence one of the most effective tools. Given the importance of business intelligence, the main purpose of this study is to identify the drivers that influence the success of knowle...
objective: : loneliness is one of the fundamental problems of old people that many factors are involved in the development or aggravation of that. any factor, such as migration, that reduces the kinship network, can be considered as effective factor. there are many studies about migration as a common phenomenon in most rural of iran, but few answered to this question: what is the effects of mig...
the main purpose of this research was to analyze agricultural water management problems (awmp) in three contexts of: water source, water conveyance and at the farm level, in zarrindasht county, fars province. the research was carried out based on a survey method with a questionnaire compiled for collection of data. questionnaire's reliability was confirmed through a computation of cronbach...
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