نتایج جستجو برای: 6 principal components explained approximately 825 percent of the total variance

تعداد نتایج: 22949531  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زنجان 1389

until now many studies have been done over recent decades throughout the world to show the right age to start english. in iran, research is still at an early stage in terms of evaluating teachers’ beliefs about teaching children english. the problem of at what age to start teaching english and how to teach english to elementary school children has not been solved neither in this country nor els...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید مدنی آذربایجان - دانشکده ادبیات و علوم انسانی 1391

abstractof two mcall programs introducing 100 vocabulary items through two im the researcher of the present study was intrigued to compare the effects age modalities (pictures and streaming video) with those of a conventional method (teacher instruction) in an efl context. she set out to investigate whether such multimedia environments could provide a more effective environment for vocabulary...

Journal: :journal of cell and molecular research 0
zeinab hosseinnia ali shabani hamed kolangi miandare

genetic diversity is one of the three levels of biodiversity. the aim of present study was to compare levels of genetic polymorphism between wild bream populations using seven microsatellite loci. genetic diversity was investigated by studying samples collected from two regions, the coast of chamkhale and bandaranzali of gilan province. a total of seven microsatellite loci (mfw7, mfw26, mcs1eh,...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان 1390

section{introduction} the concept of {sl cartan geometry} appeared at the beginning of the twentieth century, when {e}lie cartan was working on the so-called {sl equivalence problem}, the aim of which is to determine whether two given geometric structures can be mapped bijectively onto each other by some diffeomorphism. this problem can be considered in many different contexts, such as ...

ژورنال: مجله علمی پژوهان 2020

Social Appearance Anxiety refers to social anxiety, especially general appearance, including body shape and the fear of being evaluated by others. The purpose of this study was to investigate the role of self-criticism and shyness in predicting social appearance anxiety of female students in Rasht. The research was descriptive-correlational and the statistical population included all female stu...

پایان نامه :0 1374

the following question poped up: is there any relationship between iranian high school efl learners reading comprehension and listening comprehension? then the following null hypothesis (ho) was developed to the test the above, mentioned question. "there is no relationship between high school efl learners reading comprehension and listening comprehension. for nearly 16 weeks, the experimental g...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
فتح اله صادقی سیدمحمود حسینی احمد رضوانفر ابوالقاسم شریف زاده پگاه مریدالسادات

this research was done with the aim of analyzing the factors that influence the professional development of agricultural faculty members. methodologically, this explanatory research was carried out through survey method. the population of the research consisted of agricultural faculty members of iran universities (n=1190). using random stratified sampling method, 120 faculty members were select...

Arasbaran is one of most important regions in terms of agriculture, economics and tourism in northwest of Iran that it usually receives the most yearly spring precipitation. To recognize the synoptic patterns of the 500 hpa, geopotential  height data were driven for coordinates 00-70 ˚ E and 15- 65˚N in rainy springs (1972-1976-1979-1981-1986).To select the most important component using princi...

2009
John A. Izbicki Peter W. Swarzenski Christopher D. Reich Carole Rollins Patricia A. Holden

Fecal indicator bacteria (FIB) indicative of fecal contamination in urban streams and recreational ocean beaches in Santa Barbara, California often exceed recreational water-quality standards. During low flow, FIB and human-specific Bacteroides concentrations in urban streams were associated with point discharges. FIB concentrations varied three-fold during diurnal sampling as a result of small...

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