BACKGROUND Access to medical care and severe pediatric asthma outcomes vary with geography, but the relationship between them has not been studied. OBJECTIVE We sought to evaluate the relationship between geographic access and health outcomes for pediatric asthma. METHODS The severe outcome measures include emergency department (ED) visits and hospitalizations for children with an asthma di...

Unlicensed operation has become a viable alternative for building wireless access infrastructures. In the future unlicensed operation may be an important part of the infrastructure. However even if many problems can be solved there are many challenges involved as well. This paper studies how two operators interact when they have two networks in the same geographical area. Data traffic (packets)...

Data availability is a key issue affecting the collective well-being of society. Economic and legal scholars have argued that the current, relatively open, access-to-data environment in the United States is beneficial to advancing knowledge and the economy. However, little empirical evidence exists to validate the extent to which various access policy environments do or do not contribute to the...

Spatial analysis of usage data for a new open-access library and information science e-journal indicates that within the US the geographic distribution of page views is similar to the geographic distribution of the sponsoring program’s alumni locations. Outside the US, the geographic distribution of page views was greatest in Europe, followed by Asia, Africa and South America. The top two most ...

BACKGROUND Determining a community's health care access needs and testing interventions to improve access are difficult. This challenge is compounded by the task of translating the relevant data into a format that is clear and persuasive to policymakers and funding agencies. Geographic information systems can analyze and transform complex data from various sources into maps that illustrate prob...

In our days, geospatial data play a key role in a wide spectrum of critical fields, such as disaster and emergency management, environmental monitoring, land and city planning. The specific nature of these geospatial data presents many challenges in terms of security. Indeed, security issues for geospatial data are different and in many ways more complex than security issues for relational data...

BACKGROUND Only a small amount of research has focused on the relationship between socio-economic status (SES) and geographic access to prescription medications at community pharmacies in North America and Europe. To examine the relationship between a community's socio-economic context and its residents' geographic access to common medications in pharmacies, we hypothesized that differences are...

Geographic Information Task (GeoTask) is one of the newly proposed tasks at the NTCIR-4 WEB. Geographic information is close to our daily lives, and is one of the real ways to access Web information. Researches and developments of such aspects have been increasing recently, however, comparative evaluations of such kinds of techniques has not been carried out so far. GeoTask focused on the techn...

Primary care is often thought of as the gateway to improved health outcomes and can lead to more efficient use of health care resources. Because of primary care's cardinal importance, adequate access is an important health policy priority. In densely populated urban areas, spatial access to primary care providers across neighborhoods is poorly understood. We examined spatial variation in primar...

This paper describes an architecture which can be used to access geographic information from mobile devices with limited display and processing characteristics, such as Personal Digital Assistants (PDA) or Mobile Phones. The information may come from different sources leading to an interoperable solution. M-GIS obtains geographic information from sources described using Geography Markup Languag...