Background At the request of Redwood City partners and with funding from the Robert Wood Johnson Foundation's Salud America! initiative, the John W. Gardner Center for Youth and Their Communities (JGC) at Stanford University undertook an analysis examining the extent to which after school program participation is associated with youth physical fitness outcomes using the Youth Data Archive (YDA)...

This paper is the result of the collaboration between planning and computer science research towards a) understanding the production of spaces that stimulate physical social interaction for better quality of city life, and b) increasing connectivity and empowering communities for the creation of their own selforganized communication network. Although these goals are independent, we argue that t...

sports spaces are the most important services in the city, that have a significant role in raising physical and mental health citizens. after studying the existing sports spaces in the neighborhood, district, region and city of zanjan, determined levels and percapita sport spaces of zanjan city. a total of 19 spaces sports zanjan city, 9 sport spaces neighborhood-scale, 6 sport spaces district ...

With the advent of the Internet of Things and smart city applications, massive cyber-physical interactions between the applications hosted in the cloud and a huge number of external physical sensors and devices is an inevitable situation. This raises two main challenges: cloud cost affordability as the smart city grows (referred to as economical cloud scalability) and the energy-efficient opera...

introduction trends of population in the past half century have witnessed the decline of rural population to urban. general population and housing census results of iran in the past fifty years show that the exact proportion of rural population and urban population of the total population reversely changed (85.5 and 31.5 percents in 1335 to 31.5 and 85.5 percent in 1385). it seems that the four...

Contingency analysis is a critical activity in the context of the power infrastructure, because it provides a guide for resiliency and enables the grid to continue operating even in the case of failure. A critical issue with the current evolution of the power grid into a so-called smart grid is the introduction of cyber-security threats due to the pervasive deployment of communication networks ...

As the cost of hardware of CMOS cameras and microphones is reasonably low, multimedia sensor networks are becoming highly feasible to extract detailed information about the environment. Distributed smart cameras and video sensor networks are examples of some popular applications. However, due to unique properties of multimedia data delivery, we face novel challenges for resource-constrained sen...

The present study aimed to conduct a field on the water of eight wells in different areas Kirkuk city. modeling was done monthly basis, starting from November 2019 until April 2020. included measuring some physical factors (water temperature, electrical conductivity, total dissolved solids) and chemical (pH, oxygen, biological oxygen demand, alkalinity, hardness, calcium magnesium sodium ion, s...