This report provides the reader with an overview of the concept of social sampling. Social sampling is a class of methods where properties of a social network are used to obtain more accurate samplers than using classical polling algorithms. The main interest lies in the correlation between the sampling size and the sampling error and the systematic bias due to the network structure. I define t...

irrigation management transfer to farmers is one of the important and necessary issues for irrigation planners globally. irrigation management transfer or participatory irrigation management by water users’ associations (wua) is a widespread strategy in the world and a good way to remove the country's irrigation and drainage systems problems. the main objective of this research was respons...

The authors investigated the extent to which social support and coping account for the association between greater optimism and better adjustment to stressful life events. College students of both genders completed measures of perceived stress, depression, friendship network size, and perceived social support at the beginning and end of their 1st semester of college. Coping was assessed at the ...

Social network is a social structure that is composed of some agents (generally individuals or organizations) that are connected by one or more kind of dependencies, such as ideas and financial transactions, friends, relatives, Web links, spread of diseases (epidemiology). Social networks exist in different categories some of which could be found in [1]. The results of various studies indicate ...

PURPOSE OF THE STUDY This study was designed to identify social network types among lesbian, gay, bisexual, and transgender (LGBT) older adults and examine the relationship between social network type and mental health. DESIGN AND METHODS We analyzed the 2014 survey data of LGBT adults aged 50 and older (N = 2,450) from Aging with Pride: National Health, Aging, and Sexuality/Gender Study. Lat...

The existence of discrete social clusters, or 'communities', is a common feature of social networks in human and nonhuman animals. The level of such community structure in networks is typically measured using an index of modularity, Q. While modularity quantifies the degree to which individuals associate within versus between social communities and provides a useful measure of structure in the ...

This paper investigates how the diversity of the population affects the propagation of a rumour. Mathematical models of rumour have only recently begun to consider the social network by which the interlocutors are connected. If the outgroup minority is very poorly integrated do they have a greater probability of resisting a derogatory rumor or is it better for the minority to be well mixed in t...