new millennium began when half of world population is living in the cities. predictions represent that the proportion of citizenship will reach to 65 percent by 2050. one the phenomena affected by living in the cities is citizenship. citizenship phenomenon is one of the phenomena that in in the era of social political evolution in the world have received much attention. presentation of theories...

Background This study was undertaken to investigate the efficiency of two different embryo somatic cell co-culture conditions tissue culture medium 199 (TCM199)–vero cells and Menezo B2 (B2)-vero cells for the in vitro developmental quantity and quality of bovine embryos. MaterialsAndMethods Bovine oocytes were allowed to mature and subsequently undergo fertilization in vitro. Their presumptive...

       Undoubtedly, the social world is changing and one of the main factors of transformation in the current world is new and modern technological achievements which are considered as modern media. However, due to their emerging nature of these media, there has been no agreement on their positive or negative effects and there have been different ideas about the effect of these modern media...

New millennium began when half of world population is living in the cities. Predictions represent that the proportion of citizenship will reach to 65 percent by 2050. One the phenomena affected by living in the cities is citizenship. Citizenship phenomenon is one of the phenomena that in in the era of social political evolution in the world have received much attention. Presentation of theories...

Different sugarcane varieties (CP 77/400, CP 85/1491 and Punjabi) were checked for its callus induction and regeneration capabilities using different growth regulators and explants (eye bud, upper portion of inner leaf whorls and lower portion of inner leaf whorls). Seven callus induction media i.e. CIM-1 to CIM-6 and control media, five shoot induction media i.e. SIM-1 to SIM-4 and control med...

Background: Challenge between parents and their children is a rapidly growing phenomenon in Iran. The communication challenge of adolescence with emphasis on social media in this study is a phenomenon that based on the changes and developments of adolescence, can affect the nature and quality of family relationships, question the authority of parents, and cause changes in regulations. The prese...

from a sociological point of view, social trust is an important element of social order. it is strengthened or undermined by certain factors including mass media. the present study, using a survey method with a sample of 400 citizens of tehran, was aimed at examining the effects of mass media on social trust. the study examined the relationship between three media (national television, satellit...