BACKGROUND Bicycle commuting in an urban environment of high air pollution is known to be a potential health risk, especially for susceptible individuals. While risk management strategies aimed to reduce exposure to motorised traffic emissions have been suggested, only limited studies have assessed the utility of such strategies in real-world circumstances. OBJECTIVES The potential to lower e...

This work proposes a simple way to improve a clustering algorithm. The idea is to exploit a new distance metric called the “Euclidian Commute Time” (ECT) distance, based on a random walk model on a graph derived from the data. Using this distance measure instead of the usual Euclidean distance in a k-means algorithm allows to retrieve wellseparated clusters of arbitrary shape, without working h...

Relocation decisions are complex. Each household has a bundle of attributes that make a location attractive to it, including the ability to access different activity locations easily, neighborhood quality, house amenities etc. Relocating households have an opportunity to find housing closer to their work. Using data collected in the Twin Cities area, we investigate how commute time and distance...

To support the global strategy to raise public health through walking among adults, we added evidence on predictors of behavior in Middle East and North Africa (MENA) region by emphasizing mediator—COVID-19. During COVID-19 outbreak, restrictions encompass spread disease have disrupted normal daily lifestyles, including physical activity sedentary behavior. It was proposed that tremendous chang...

OBJECTIVES This study examines how engagement in transport-related physical activity (TPA), perceptions of the commute route, actual travel distance, and perceptions of travel distance vary by degree of urbanization in rural and remote areas of Central Queensland, Australia. METHOD A random, cross-sectional sample of 1230 adults aged 18 years and over residing in rural and remote Central Quee...

Active commuting (non-motorized transport) to school can be an important source of physical activity for children and adolescents. This research examined sociodemographic, family, and environmental characteristics associated with active commuting to or from school among 3,451 US adolescents aged 12-17 years, who responded to the 2005 California Health Interview Survey. Logistic regression resul...

This report investigates the paper Lipman et al. Biharmonic distance, who introduced a new distance measure, called biharmonic. We examine the approach of the distance, which is based on the Green’s kernel of the Bi-Laplacian in the continuous and the discrete setting. For the discrete setting we have two different methods of calculation, an approximate as well as an exact computation. Furtherm...