Background: Ciclovias, known in the U.S. as open streets initiatives, close streets to vehicles to increase open space and physical activity opportunities for local communities. In San Francisco, California, the open streets initiative known as Sunday Streets, was founded in 2008 to promote bicycle use in neighborhoods most underserved for recreational resources and experiencing higher than ave...

Physical Activity (PA) is vital for health and well-being. Automobile-oriented urban development hinders PA in rapidly urbanized cities. In this regard, Complete Streets’ an emerging design approach to provide equitable services all road users while promoting PA. Qatar introducing ‘Complete as part of beautification project which trees are integral element. the capital city Doha, expatriates co...

We define an elliptic equation for Hermitian metrics which is related to the Einstein condition. Solutions to this equation are closely related to Kähler-Einstein metrics, and are automatically Kähler-Einstein when a certain non-positive condition is satisfied by c1(M). Given this, a natural flow equation arises taking Hermitian metrics to Kähler metrics. We prove short time existence and regul...

OBJECTIVE Millions of children leave home in hope of finding a more tolerable life. The study tries to find out the kind of life they lead once out on the streets. METHODS Cross-sectional study of all street boys admitted to a Child Observation Home in New Delhi during specified 6 months. Questions regarding various aspects of survival on streets were asked. RESULTS Majority are forced to w...

City streets in this country represent an annual capital outlay of $3,133 billion, based on 1966 data. This figure is more than one-third of the total annual capital outlay for all streets and highways, $9,123 billion. Another $1,114 billion was spent annually for maintenance of city streets, so $4,247 billion was spent each year on city streets. O f this total $4 billion, $2.5 billion went to ...

OBJECTIVES To compare child pedestrian injury rates on one-way versus two-way streets in Hamilton, and examine whether the characteristics of child pedestrian injuries differ across street types. METHODS The rates of injury per child population, per kilometre, per year were calculated by age, sex and socio-economic status (SES). Child, environment and driver characteristics were investigated ...

A fundamental problem in robotics is to compute a path for a robot from its current location to a given goal. In this paper we consider the problem of a robot equipped with an on-board vision system searching for a goal g in an unknown environment. We assume that the robot is originally located at a point s on the boundary of a street polygon. A street is a simple polygon with two distinguished...