سجاد منصوری

The purpose of this study was to investigate the effect of knowledge management and strategic orientation on organizational performance of sports organizations in Lorestan province. The research was a descriptive – correlational that was carried out by survey method. The statistical population included all managers and staffs of sport and youth offices, sport boards and sport club’s of the province (227 people), which all of them were selected as a sample. Hemmati Knowledge Management Standard Questionnaire (2010), Ahmadian's Strategic Orientation (1392), and Hersey's and Gould Smith's Organizational Performance (1980) were used to collect data. Content validity of these tools was confirmed by the university professors and their reliability was calculated by Cronbach's alpha coefficient. The data was analized using structural equation modeling test in the SPSS version 22 and LISREL 8/8. The results showed that there was a significant relationship between knowledge management and strategic direction with organizational performance in sport organizations. Also, knowledge management with coefficient equal 0.17 and 0.68 have a significant effecct on organizational performance, and strategic direction with coefficient equal 0.81 has a significant effect on organizational performance. Hence, it can be said that strategic orientation plays a mediator role between knowledge management and organizational performance.

The aim of the present study was to content analyze of the geometry textbook of the tenth grade of mathematics and physics based on the William Romey technique. The research method in this research is content analysis by William Rumi method. The statistical population of this research is the geometry book of the tenth grade of mathematics and physics. The content of the textbook was examined in terms of the degree of text, pictures and shapes and questions. The results of this study showed that the text involvement coefficient is 1.34, which indicates that the text of Geometry 1 textbook for the tenth basic mathematics and physics has been actively written. The coefficient of involvement of the images was also determined to be 1, which showed that the images and shapes in the book engage the student in learning. Also, in the activity-oriented index analysis section of the book, the involvement coefficient was 2.33, which indicates that the tenth grade geometry textbook is active involvement. The results of this research indicate that the text, images and questions of the newly written textbook of the tenth geometry of mathematics and physics have been actively written.

Genetic variation, population structure and linkage disequilibrium in 144 durum wheat genotypes, mainly belonged to different geographic regions of Iran, has been studied in this research. Genotyping of population carried out by Illumina Infinium 15K array, consisting of 13006 SNP markers. Polymorphism information content (PIC) ranged from 0.08 to 0.37, with a mean value of 0.26. Pairwise kinship coefficients among genotypes showed that 58.85% of the values were zero and only about one percent of the coefficients were larger than 0.5, indicating that there was a poor relatedness among the genotypes. We identified six main subgroups within the population inferred by STRUCTURE analysis. The subgroups were somewhat separated based on geographical origins. Principal coordinates analysis (PCoA) indicated that the first two principal coordinates explained 16.35 and 7.52% of the total genetic variance among the genotypes, respectively. The results of this research indicated that SNP markers are efficient tools for genetic variation characterization, and population structure studies of wheat genotypes and can be used in selection of genotypes as crossing parents and marker-assisted selection in breeding programs.

wheat has known as the most important cereal in world’s agriculture which has provided over to 30% of cereals of the world. Genetic variation is too important as the leaven of plant breeding. Like many other crops, the genetic variation is diminishing also in the wheat. Therefor, plant breeders are looking for the new gene sources they proposed the wheat native varieties its wild relatives as a potential useful valuable source of genetic variation which may applied on wheat breeding successfully. In this study, genetic variation of 30 genotypes of Agilops tauschii sp. were investigated using SSR (Microsatellite) marker. Here, after the DNA extraction based on modified CTAB method quantitative qualitative evaluation of extracted DNA, DNA amplification(PCR) was carried out. Next, electrophoresis of amplified DNA on 3% agarose gelling agent was performed after the band appearing data analysis of genetic variation, number of 71 allels were recognized that 69 allels of them found to be polymorphic. Total mean of allel per locus was 4.6 mean value of 0.654 was calculated for polymorphism contents. The highest degree of dissimilarity was observed from 3 12 the lowest from 7 10 genotypes. The highest the lowest genetic gap of 0.85 0.265 respectively was obtained from dice of 0.92 0.42 from jacard method. Evaluation of dissimilarity between genotypes showed that northern regions of iran specially mazandaran province is the variety center the main origin of Agilops tauschii sp. this species has transferred from these regions to other places.