Browsing Open Research by Author "Ulmer, JM"

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International Comparison of Observation-specific Spatial Buffers: Maximizing the Ability to Estimate Physical Activity

Frank, LD; Fox, EH; Ulmer, JM; Chapman, JE; Kershaw, SE; Sallis, JF; Conway, TL; Cerin, E; Cain, KL; Adams, MA; Smith, GR; Hinckson, E; Mavoa, S; Christiansen, LB; Hino, AA; Lopes, AA; Schipperijn, J (BioMed Central, 2017)

Advancements in geographic information systems over the past two decades have increased the specificity by which an individual's neighborhood environment may be spatially defined for physical activity and health research. ...