Creating a replicable, valid cross-platform buffering technique: The sausage network buffer for measuring food and physical activity built environments
نویسندگان
چکیده
منابع مشابه
Creating a replicable, valid cross-platform buffering technique: The sausage network buffer for measuring food and physical activity built environments
BACKGROUND Obesity researchers increasingly use geographic information systems to measure exposure and access in neighborhood food and physical activity environments. This paper proposes a network buffering approach, the "sausage" buffer. This method can be consistently and easily replicated across software versions and platforms, avoiding problems with proprietary systems that use different ap...
متن کاملFood and Physical Activity Environments
J P Increases in the prevalence of overweight and obesity are a function of chronic, population-level energy imbalance, whereby energy intakes exceed energy expenditures. Although sometimes viewed in isolation, energy intakes and expenditures in fact exist in a dynamic interplay: energy intakes may influence energy expenditures and vice versa. Obesogenic environments that promote positive energ...
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TCP is often blamed that it cannot use efficiently network paths with high Bandwidth-Delay Product (BDP). The BDP is of fundamental importance because it determines the required socket buffer size for maximum throughput. In this paper, we re-examine the BDP concept, considering the effects of network buffering and cross traffic on the ‘bandwidth’ and ‘delay’ characteristics of a path. We show t...
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ژورنال
عنوان ژورنال: International Journal of Health Geographics
سال: 2012
ISSN: 1476-072X
DOI: 10.1186/1476-072x-11-14