We develop a procedure for testing the quality of a candidate solution for a class of stochastic programs. Quality is defined via the optimality gap and the procedure’s output is a confidence interval on this gap. We review a multiple-replications procedure and then, we present a result that justifies a computationally simplified single-replication procedure. We compare empirical coverage resul...

Despite unprecedented advances in our understanding of the pathogenesis of inflammatory bowel diseases and novel treatments there is abundant evidence that the quality of care delivered to IBD patients is both disparate and suboptimal. Scientific progress may have outpaced quality improvement measures. Quality of care research in IBD is fraught with challenges with the lack of established quali...

Substantial uncertainty exists about the impact of school quality on the black-white achievement gap. Sizeable achievement differences by race as of 1 grade and test error complicate any investigation of this issue, because average test score growth rates may differ across the distribution depending upon the test instrument, curriculum, and other factors. Texas administrative data show that the...

Test generation and test data selection are difficult tasks for model based testing. Tests for a program can be meld to a test suite. A lot of research is done to quantify the quality and improve a test suite. Code coverage metrics estimate the quality of a test suite. This quality is fine, if the code coverage value is high or 100%. Unfortunately it might be impossible to achieve 100% code cov...

Background Continuous quality improvement of the hospital services is a basic requirement of medical tourism industry. The different dimensions of hospital services quality are assessed constantly to improve the service of medical tourism. The aim of this study was to determine the services quality of medical tourism in private and public hospitals. Methods In this cross-sectional study, the ...

Because the anion gap is useful in classifying acid-base disorders, quantitative information on this variable should be readily available. Three populations were studied and means and central 90% ranges were determined for the anion gap, calculated as sodium-(chloride + bicarbonate). In 1047 hospitalized patients the mean was 12 mEq/liter, 86 faster volunteers had a mean of 13 mEq/liter with a ...

Even when information is made available through public campaigns, people may still retain inaccurate perceptions of environmental quality. We look at coastal water quality in Southern California via a telephone survey. Fewer than half of respondents are able to correctly rank two randomly chosen beaches in terms of water quality. A logit analysis of the rankings reveals that there are systemati...

the aim of this research is to consider the quality of services provided by kerman telecommunication company (ktc) from different perspective in order to keep and attract clients. in this research, the quality of services by kerman province telecommunication company in different parts such as: phone, mobile phone, data service and also the quality of presented services by serving offices due to...

My subject tonight is the dichotomy between the success of individual physicians and what I believe to be the failure of our profession to assume a true leadership role in furthering the health of Americans. I believe that there is a narrow window remaining during which professional leadership is possible, but I believe even that window is beginning to close. Health care is about access, qualit...