Social network researchers have long sought measures of network cohesion. Density has often been used for this purpose, despite its generally admitted deficiencies. An approach to network cohesion is proposed that is based on minimum degree and which produces a sequence of subgraphs of gradually increasing cohesion. The approach also associates with any network measures of local density which p...

In gregarious species, social interactions maintain group cohesion and the associated adaptive values of group living. The understanding of mechanisms leading to group cohesion is essential for understanding the collective dynamics of groups and the spatio-temporal distribution of organisms in environment. In this view, social aggregation in terrestrial isopods represents an interesting model d...

There has been a recent upsurge of interest in the relationship between income inequality and health within nations and between nations. On the latter topic Wilkinson and others believe that, in the advanced capitalist countries, higher income inequality leads to lowered social cohesion which in turn produces poorer health status. I argue that, despite a by-now voluminous literature, not enough...

Two prevailing theories for explaining social group or community structure are cohesion and identity. The social cohesion approach posits that social groups arise out of an aggregation of individuals that have mutual interpersonal attraction as they share common characteristics. These characteristics can range from common interests to kinship ties and from social values to ethnic backgrounds. I...

Background: Regular physical activity has a positive effect on physical health, well-being and life satisfaction for older adults. However, engaging in regular physical activity can be challenging for the elderly population due to reduced mobility, low motivation or lack of the proper infrastructures in their communities. Objective: The goal of this paper is to study the feasibility of home-bas...