Surveys suggest that supply chain risk is a growing issue for executives and that supplier reliability is of particular concern. A common mitigation strategy observed in practice is for the buying firm to expend effort improving the reliability of its supply base. We explore a model in which a firm can source from multiple suppliers and/or exert effort to improve supplier reliability. For both ...

The Korean Society of Epidemiology publishes a scholarly journal titled 'Korean Journal of Epidemiology', which announces and discusses the results of epidemiological studies from the past 30 yr. Since its first publication in 1979, the journal has contributed to the advancement of epidemiology as well as the prevention and control of disease, and the promotion of health in Korea.In 2009, the e...

The aim of this study was to examine the interrater reliability (trained vs. untrained raters) and criterion-related validity (manual vs. automatic timing) of the 4 × 10-m shuttle run and 30-m running speed tests (times measured). The study comprised 85 adolescents (38 girls) aged 13.0-16.9 years from the Healthy Lifestyle in Europe by Nutrition in Adolescence study. The time required to comple...

OBJECTIVE Lack of consensus on taxonomy, terminology, and definitions has led to confusion about which measurement properties are relevant and which concepts they represent. The aim was to clarify and standardize terminology and definitions of measurement properties by reaching consensus among a group of experts and to develop a taxonomy of measurement properties relevant for evaluating health ...

BACKGROUND The reliability of binary exposure classification methods is routinely reported in occupational health literature because it is viewed as an important component of evaluating the trustworthiness of the exposure assessment by experts. The Kappa statistics (κ) are typically employed to assess how well raters or classification systems agree in a variety of contexts, such as identifying ...

This article presents the proceedings of a symposium at the 2002 RSA Meeting in San Francisco, California. Deborah S. Hasin organized the symposium and co-chaired it with Marc Schuckit. The purpose of the symposium was to provide an overview of what is known about the validity of DSM-IV and ICD-10 alcohol dependence and abuse, with a focus on work done since 1994. Presentations included: (1) Va...

OBJECTIVE this study sought to test the interexaminer agreement and reliability of 15 indicators of nursing care quality. METHODS this was a quantitative, methodological, experimental, and applied study conducted at a large, tertiary, public teaching hospital in the state of Paraná. For data analysis, the Kappa (k) statistic was applied to the categorical variables - indicators 1 to 11 and 15...

PurposeStuttering is a fluency disorder with worldwide prevalence of 1%. Reports on the epidemiology stuttering in India limited. Our primary goal was to examine among school children. The study also aimed impact several risk factors stuttering.MethodA total 3437 children age range 6–15 years were screened 16 camps conducted and around schools Dakshina Kannada. for using screening tool by an SL...

With limited healthcare resources, rational prioritization of healthcare interventions requires knowledge and analysis of disease burden. In the absence of actual disease-burden data from less-developed countries, various types of morbidity and mortality estimates have been made. Besides having questionable reliability, these estimates do not capture the full burden of a disease since they prov...

One of the main problems in genetic epidemiology is to robustly predict genetic susceptibility to complex diseases based on the data from case/control studies. This becomes computationally challenging in presence of interactions between multiple genes. In order to efficiently search through enormous amount of possible combinations, it is necessary to apply heuristics and the greedy approach has...