نتایج جستجو برای: class
تعداد نتایج: 399343 فیلتر نتایج به سال:
in this thesis our aim is to construct vector field in r3 for which the corresponding one-dimensional maps have certain discontinuities. two kinds of vector fields are considered, the first the lorenz vector field, and the second originally introced here. the latter have chaotic behavior and motivate a class of one-parameter families of maps which have positive lyapunov exponents for an open in...
the purpose of this study is to investigate the relationships between teachers’ immediacy behaviors and iranian students’ willingness to talk in english classes. analysis of the results from willingness to talk scale represents a relatively high level of willingness to talk in english classrooms among iranian language learners. the total mean score of students’ willingness to talk was 66.3 ou...
چکیده ندارد.
the extensive research done on the interrelationship between different social factors such as social class, gender and age and different linguistic variables has shown that these factors have important effects on the way language is used. among these factors a special importance can be placed on age due to the role it plays in revealing different patterns of language use, such as the age-gradin...
هدف: این مطالعه به منظور بررسی تأثیر سطح سرمی ویتامین d بر بروز عوارض نارسایی قلبی در بیماران بستری در بیمارستان بوعلی طی سالهای 1390-1389 انجام شده است. روش مطالعه: 50 بیمار مبتلا به نارسایی قلبی مراجعه کننده به بیمارستان بوعلی در سالهای 89 و 90 در این مطالعه مورد بررسی قرار گرفتند که بر اساس آزمایش خون، سطح سرمی ویتامین d در این افراد تعیین شد و ارتباط آن با ef و نیز شدت نارسایی قلبی ارزیابی...
the present study was conducted to investigate the role of summary in teaching grammar process on pre-university students. to this end, 48 male pre-university students in semnan were participants. they were math class that we called experimental group and science class as control group. in order to make sure there was no significant difference in proficiency level of two groups. a pre-test wa...
there has been a recent development and explosion of interest among academicians across a wide range of disciplines in the use of virtual class room. utilization of the virtual class room as a laboratory experimentation for teaching and learning has increased significantly in recent years as development tools for web based applications have become easier to use and computers have become more ca...
the aim of this paper is to report on an attempt to design and implement an intelligent system capable of generating the correct part of speech for a given sentence while the sentence is totally new to the system and not stored in any database available to the system. it follows the same steps a normal individual does to provide the correct parts of speech using a natural language processor. it...
teachers beliefs have usually been left unattended in the realm of educational research in iranian context. one of those beliefs which seems to impact teachers performance in the classroom is their sense of self-efficacy, which refers to teachers belief in their ability to enhance student achievement and in bringing about positive learning outcomes. the present study aimed to investigate the pr...
background: integrons are mobile genetic elements able to obtain the antibiotic resistance gene cassettes. the prevalence of integrons in the enterobacteriaceae family has been varied and played an important role in the development of the drug resistant bacteria. the present study aimed to investigate the contribution of class 2 and 3 integrons in drug resistant diarrheagenic escherichia coli s...
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