BACKGROUND Post-stroke mortality is higher among residents of disadvantaged neighborhoods, but it is not known whether neighborhood inequalities are specific to stroke survival or similar to mortality patterns in the general population. We hypothesized that neighborhood disadvantage would predict higher poststroke mortality, and neighborhood effects would be relatively larger for stroke patient...

There is a growing interest in understanding the effects of specific neighborhood conditions on psychological wellbeing. We examined cross-sectional associations of neighborhood stressors (perceived violence and disorder, physical decay and disorder) and social support (residential stability, family structure, social cohesion, reciprocal exchange, social ties) with depressive symptoms in 3105 a...

Teens tend go to bed later, get less sleep, and report more daytime sleepiness. Medical research emphasizes biological determinants of teens' disrupted sleep (i.e., the timing of puberty and resultant drops in melatonin), rarely or inadequately considering youths' social ties as a determinant of sleep behaviors. Sociologists recognize how social ties affect health behaviors but have generally n...

The interaction of positive and negative relationships (i.e. I like you, but you dislike me - referred to as relational dissonance) is an underexplored phenomenon. Further, it is often only poor (or negative) mental health that is examined in relation to social networks, with little regard for positive psychological wellbeing. Finally, these issues are compounded by methodological constraints. ...

Sense of security is one of the basic human needs and the most influential social components of urban life. Perhaps it can be the most important factor in promoting or hindering walking in cities. In other words, if the neighborhoods of a city have a good level of security, the presents of pedestrians can be seen in local streets even in the late night hours. In this regard and to the answer to...

BACKGROUND Social and environmental factors are increasingly recognized for their ability to influence health outcomes at both individual and neighborhood scales in the developing urban world. Yet issues of spatial heterogeneity in these complex environments may obscure unique elements of neighborhood life that may be protective or harmful to human health. Resident perceptions of neighborhood e...

In protein-protein interaction (PPI) networks, functional similarity is often inferred based on the function of directly interacting proteins, or more generally, some notion of interaction network proximity among proteins in a local neighborhood. Prior methods typically measure proximity as the shortest-path distance in the network, but this has only a limited ability to capture fine-grained ne...