Many who study anti-immigrant sentiment attribute negative attitudes among the native population to objective economic threats that immigrants may pose. In multilevel studies, researchers focus almost exclusively on geographic regions, such as metropolitan areas or countries, as contexts within which to examine the consequences of objective economic threats. Although geographic regions are rele...

The objective of the present study was to examine relations between social network size and three cognitive abilities (episodic memory, semantic memory, visuospatial ability) in middle-aged adults. We analyzed cross-sectional data on social network size and cognitive functioning that were available for 804 participants aged 40-60 years. In addition, we examined 5- and 10-year follow-up measurem...

background: the purpose of this study is to determine association between personal, family, neighborhood, and social network characteristics and perceived intimacy in the neighborhood by the women. methods: in this cross‑sectional study, we applied a two‑stage sampling method to choose a representative sample of 150 married women and housewives, aged 15 to 49 years, who had education between si...

the article aims to consider factors affecting on the social participation of citizens 18 to 64 years old in the civic affairs in mashhad. the method was survey and the population included all the all inhabitants of mashhad. sample size was 348 respondents who were selected by proportionate systematic sampling strategy for interviewing. the results showed that participation mean is 3.19 out of ...

background abortions are of major public health concern in developing countries. in settings in which abortion is highly prohibited, the direct interview is not a reliable method to estimate the abortion rate. the indirect estimation methods to measure the rate of abortion might overcome this dilemma; they are practical methods to estimate the size of the hidden group who do not agree to partic...

Most primates are intensely social and spend a large amount of time servicing social relationships. In this study, we use social network analysis to examine the relationship between primate group size, total brain size, neocortex ratio and several social network metrics concerned with network cohesion. Using female grooming networks from a number of Old World monkey species, we found that neoco...

We study the diffusion behavior of real-time information in an overlaying social-physical network. Typically, real-time information is valuable only for a limited time duration and needs to be delivered before its deadline, indicating that real-time information is more likely to spread among friends within a “social proximity.” With this insight, we consider a physical information network which...