نتایج جستجو برای: urban spatial disparities

تعداد نتایج: 540991  

2002
Stephanie E Chang

A methodology is developed in this paper for evaluating and enhancing the performance of urban transportation systems in the aftermath of a disaster. A performance measure is proposed for assessing overall and distributional impacts based on the concept of accessibility. The methodology is demonstrated with two case studies. The first focuses on passenger railroad disruption in the catastrophic...

2011
JAVED IQBAL

The present study was conducted to investigate the social and demographic analysis of urban-rural disparities in Khyber Pakhtunkhwa, Pakistan during 2010. Multi-stage random sampling method was used for selection of sample size by taking 1320 and 720 respondents from the urban and rural areas of the province respectively. Chi-square test was used for ascertaining the association between the att...

Journal: :Journal of the Optical Society of America. A, Optics, image science, and vision 1994
H S Smallman D I MacLeod

Contrast thresholds for 75% correct depth identification in narrow-band filtered random dot stereograms were determined for different center spatial frequencies and binocular disparities. Rigorous control over vergence was maintained during testing, and a forced-choice procedure was used. The resulting contrast sensitivity function for stereopsis revealed sensitivity over a greater range of dis...

2012
Stephen Gibbons Sandra McNally Martina Viarengo

Does Additional Spending Help Urban Schools? An Evaluation Using Boundary Discontinuities Improving the educational attainment of disadvantaged students in urban schools is a priority for policy worldwide, but existing research is equivocal about the effectiveness of additional funding for achieving this objective. This study exploits anomalies in the spatial dimension of school funding policy ...

2017
Jiajia Li Leiyu Shi Shixue Li Lingzhong Xu Wen Qin Heng Wang

BACKGROUND China has experienced a rapid increase in hypertension over the past decade, especially in rural. Therefore, the aim of this research is to examine the dynamic trends in urban-rural disparities in hypertension prevalence, detection, and medication use among Chinese adults from 1993 to 2011. METHODS Data were extracted from the seven latest waves of the China Health and Nutrition Su...

Journal: :The Journal of allergy and clinical immunology 2009
Tyra Bryant-Stephens

Asthma continues to disproportionately affect minority and low-income groups, with African American and Latino children who live in low-socioeconomic-status urban environments experiencing higher asthma morbidity and mortality than white children. This uneven burden in asthma morbidity has been ever increasing despite medical advancement. Many factors have contributed to these disparities in th...

Journal: :Academic medicine : journal of the Association of American Medical Colleges 2004
Kevin Fiscella David R Williams

Health is unevenly distributed across socioeconomic status. Persons of lower income, education, or occupational status experience worse health and die earlier than do their better-off counterparts. This article discusses these disparities in the context of urban medical practice. The article begins with a discussion of the complex relationship among socioeconomic status, race, and health in the...

2013
Christina Aschan-Leygonie Sophie Baudet-Michel Hélène Mathian Lena Sanders

BACKGROUND In recent years, there have been a growing number of studies on spatial inequalities in health covering a variety of scales, from small areas to metropolitan areas or regions, and for various health outcomes. However, few investigations have compared health status between cities with a view to gaining a better understanding of the relationships between such inequalities and the socia...

2012
Laurent Gobillon Carine Milcent

Spatial Disparities in Hospital Performance Using a French exhaustive dataset, this paper studies the determinants of regional disparities in mortality for patients admitted to hospitals for a heart attack. These disparities are large, with an 80% difference in the propensity to die within 15 days between extreme regions. They may reflect spatial differences in patient characteristics, treatmen...

2015
Catherine Kreatsoulas Areej Hassan SV Subramanian Eric W Fleegler

PURPOSE Social disparities among youth have been recognized as an important influence on disease risk later in the life cycle. Despite this, social problems are seldom assessed in a clinical setting. The primary objective of our study was to evaluate the impact of social disparities on the health of youth. METHODS A self-directed, web-based screening system was used to identify social dispari...

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