Gazestan magnetite-apatite deposit is located in Central Iran and Bafq region, which has been occurred in form of veins, veinlets, and small apatite lenses as well as magnetite in metasomatic rock types such as green chlorite-actinolite rock units. These rocks are situated in the carbonate-volcanic complex of Upper Precambrian-Lower Cambrian Rizo formation. In this study, staged factor analysis...

This study aims to validate a model for evaluating learning management systems (LMS) used in e-learning fields. A survey of 163 e-learning experts, regarding 81 validation items developed through literature review, was used to ascertain the importance of the criteria. A concise list of explanatory constructs, including two principle factors, was extracted from the responses of 133 respondents b...

Background Fifty percent of infertility involves a male factor. The evaluation begins with a history, physical exam and semen analysis x 2. The history should include questions about exposure to gonad toxins. The differential diagnosis of no ejaculate includes; retrograde ejaculation, failure of ejaculation (rare), failure of emission and psychogenic. Evaluation of absence of the vas deferens w...

abstract background and aim: the purpose of the present research was to validating the revised dyadic adjustment scales for marital quality in men and women referred in sanandaj counseling centered. methods: disgn is a study of correlation sort (factor analysis of tendentious oblimin rotation sort). in this research 384 subjects(women and men) were selected from clients in sanandaj counseling c...