OBJECTIVE Neighborhood characteristics may be important for promoting walking, but little research has focused on older adults, especially those with cognitive impairment. We evaluated the role of neighborhood characteristics on cognitive function and decline over a 2-year period adjusting for measures of walking. METHOD In a study of 64 older adults with and without mild Alzheimer's disease ...

Four studies document and explore the psychology underlying people’s proclivity to connect people to each other—to play ‘‘matchmaker.’’ First, Study 1 shows that chronic matchmaking is associated with higher well-being. Studies 2 and 3 show that matching others on how well they will get along increases happiness and is more intrinsically rewarding than other tasks (e.g., deciding which people w...

We build on previous research that explores the external acquisition of competitive capabilities through the embedded ties that firms form in networks and alliances. While information sharing and trust have been theorized to be key features of the interorganizational ties that facilitate the acquisition of competitive capabilities, we argue that these mechanisms provide an incomplete explanatio...

This study examines whether there is an association between network social capital and self-rated health after controlling for social support. Moreover, we distinguish between network social capital that emerges from strong ties and weak ties. We used a cross-sectional representative sample of 815 adults from the Belgian population. Social capital is measured with the position generator and per...

In this paper, we propose a system for contextual and semantic Arabic documents classification by improving the standard fuzzy model. Indeed, promoting neighborhood semantic terms that seems absent in this model by using a radial basis modeling. In order to identify the relevant documents to the query. This approach calculates the similarity between related terms by determining the relevance of...

This study examines the relationship between employees’ social tie diversity (ties heterogeneity based on organizational functions), innovative work behavior, informal field-based learning, and reciprocity (bidirectional ties proportion). A sample of 182 workers from an Italian clothing manufacturing company was analyzed. The findings reveal that positively influences their is mediated by learn...

We study geographic political representation and distribution of local public goods within jurisdictions using geo-coded data on politicians, the electorate elementary schools. Descriptive analysis reveals that poorer neighborhoods are under-represented politicians have a strong support base in their home neighbourhoods. Based randomized election outcomes due to personal vote count ties, has ca...

We argue that social networks can be modeled as the outcome of processes that occur in overlapping local regions of the network, termed local social neighborhoods. Each neighborhood is conceived as a possible site of interaction and corresponds to a subset of possible network ties. In this paper, we discuss hypotheses about the form of these neighborhoods, and we present two new and theoretical...