This survey addresses sampling discretization and its connections with other areas of mathematics. The concentrates on norms elements finite-dimensional subspaces. We present here known results both integral the uniform norm beginning classical ending very recent achievements. also show how connects to spectral properties operator submatrices, embedding subspaces, moments marginals high-dimensi...

This study analyzed routine locations (activity spaces) of urban adolescents enrolled in a substance abuse treatment program to understand the relationship between their spatial lives and health outcomes such as substance use and mental health. Sixty-eight adolescents were interviewed and produced a list of 199 locations identified as most important, safe, and risky. A TwoStep Cluster analysis ...