Magda Cerdá

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OBJECTIVES We investigated the relationship between the depressive symptoms of older adults over time and the characteristics of the neighborhoods in which they live. METHODS We surveyed a random sample of 1325 New York City residents aged 50 years or older in 2005 and conducted 808 follow-up interviews in 2007. We assessed the compositional(More)
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(More)
Impulsive noise is probably the most harmful disturbance existing in the in-vehicle PLC scenario. Studies performed up to now have provided statistics of their pulse width, amplitude, bandwidth and interarrival time. However, they have disregarded the periodic behavior of most of them. In addition, their accuracy is strongly limited by the amplitude of the(More)
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