In an age of climate change, researchers need to form a deepened understanding of the determinants of environmental concern, particularly in countries of emerging economies. This paper provides a region-specific investigation of the impact of socio-economic status (SES) and objective environmental conditions on environmental concern in urban Brazil. We make use of data that were collected from ...

OBJECTIVE The first democratic government elected in South Africa in 1994 inherited huge inequalities in health status and health provision across all sections of the population. This study set out to assess, 4 years later, the influence of race and socioeconomic status (SES) on perceived quality of care from health care providers. DESIGN A 1998 countrywide survey of 3820 households assessed ...

OBJECTIVES The first democratic government elected in South Africa in 1994 inherited huge inequities in health status and health provision across all sections of the population. This study set out to assess the impact of the new government's commitment to address these inequities and implement policies to improve population health in general and address inequalities in health care in particular...

The magnitude of provider uncompensated care has become an important public policy issue. Yet existing measures of uncompensated care are flawed because they compare uninsured payments to list prices, not to the prices actually paid by the insured. We address this issue using a novel source of data from a vendor that processes financial data for almost 4000 physicians. We measure uncompensated ...

every year, a part of the national capital of the country is lost due to the disorders of traffic. an important part of the traffic disorders is caused by the improper behavior of some users of urban transport system. such a situation is contrary to the principles of smart growth and urban sustainability. the study of traffic conflicts as a symbol of the society culture of traffic can lead city...

The capability of providing quality of service (QoS) in packet switches of computer networks is critical to implementation of distributed multimedia systems. The buffered crossbar switching architecture is promising to achieve high performance without complex implementation. In this paper, we study the problem of resource allocation to aggregated traffic classes in buffered crossbar switches fo...

To support latency sensitive traffic such as voice, network providers can either use service differentiation to prioritize such traffic or provision their network with enough bandwidth so that all traffic meets the most stringent delay requirements. In the context of widearea Internet backbones, two factors make overprovisioning an attractive approach. First, the high link speeds and large volu...

Monitoring the traffic of wide area networks consisting of several autonomous systems connected through a high-speed backbone is a challenge due to the huge amount of traffic. Keeping logs for obtaining measurements is unfeasible. This work describes a distributed real-time strategy for backbone traffic monitoring that does not employ logs and allows arbitrary metrics to be collected about the ...

this study is to report characteristics of people killed in road traffic crashes and to describe major patterns of traffic crashes in china.descriptive and inferential statistical analyses were conducted. road traffic death national data, population denominator data and motor vehicles data of 2009 were obtained from the bureau of traffic management at ministry of public security and national bu...