OBJECTIVE To characterize the influence of the residential neighborhood of older adults on the prevalence of disability. METHODS We combined Census data on disability in older adults living in New York City with environmental information from a comprehensive geospatial database. We used factor analysis to derive dimensions of compositional and physical neighborhood characteristics and linear ...

PURPOSE Explore the importance of residential mobility and use of services outside neighborhoods when interventions targeting low-income families are planned and implemented. DESIGN Analysis of cross-sectional telephone household survey data on childhood mobility and school enrollment in four large distressed cities. SETTING Baltimore, Maryland; Detroit, Michigan; Philadelphia, Pennsylvania...

OBJECTIVE to assess whether the use of Safehip hip protectors would prevent second hip fractures among men and women living in the community. DESIGN pragmatic randomised controlled trial. SETTING people living in the community. PARTICIPANTS men and women aged 70 years and over who had sustained one hip fracture and who were living in the community. RESULTS 366 men and women who were eit...

In this paper, we define a reference conceptual framework to organize ontology knowledge spaces and related semantic collaboration schemes for coordinated and virtual access to heterogeneous and distributed information resources inside and outside the enterprise, at both intraand inter-enterprise level under different collaboration requirements and goals. The framework exploits ontology knowled...

STUDY OBJECTIVES To study the association between greenery filled public areas that are nearby a residence and easy to walk in and the longevity of senior citizens in a densely populated, developed megacity. DESIGN Cohort study. METHODS The authors analysed the five year survival of 3144 people born in 1903, 1908, 1913, or 1918 who consented to a follow up survey from the records of registe...

We prove that every Sobolev function de ned on a metric space coincides with a Holder continuous function outside a set of small Hausdor content or capacity. Moreover, the Holder continuous function can be chosen so that it approximates the given function in the Sobolev norm. This is a generalization of a result of Mal y [Ma1] to the Sobolev spaces on metric spaces [H1].

We prove that the finite planar spaces in which, for any two disjoint planes Fl and IT, every line intersecting U intersects IT, are essentially obtained from projective spaces PG(3, k) by deleting either a line or an affino-projective (but not affine) plane of order k, or can be constructed from the Fischer spaces F1 8 and F3 6 , except perhaps if there is only one family of pairwise disjoint ...