Non-Preemptive Scheduling on Machines with Setup Times

Consider the problem in which n jobs that are classified into k types are to be scheduled on m identical machines without preemption. A machine requires a proper setup taking s time units before processing jobs of a given type. The objective is to minimize the makespan of the resulting schedule. We design and analyze an approximation algorithm that runs in time polynomial in n, m and k and computes a solution with an approximation factor that can be made arbitrarily close to 3/2.Comment: A conference version of this paper has been accepted for publication in the proceedings of the 14th Algorithms and Data Structures Symposium (WADS

Relation Between Mental Health Status and Psychosocial Stressors Among Pregnant and Puerperium Women in Japan - From the Perspective of Working Status-

Background Mental health problems during pregnancy and postpartum periods are one of the alarming health issues among women in Japan. Many studies have reported that psychosocial risk factors could be correlated with maternal mental health status. Although increased numbers of women who are employed during the pregnancy and postpartum periods have been observed, it is unclear about the link between mental health and psychosocial stressors in terms of working status during pregnancy and postpartum periods. Therefore, this study examined difference in mental health status and the association between mental health and psychosocial stressors by working status amongpregnant and puerperium women, using nationally representative data in Japan. Methods This study analyzed data on the Japanese version of the Kessler 6 (K6), specific psychosocial stressors, and working status of pregnant and puerperium women (n=1126) from respondents in the Comprehensive Survey of Peoples Living Conditions (CSPLC) conducted in 2007 by Ministry of Health, Labour and Welfare in Japan.. The univariate logistic regression analysis and a forward multiple regression analysis were used to examine K6 and related factors including specific psychosocial stressors for working status (employedand unemployed).Results Those who scored five or higher in K6 accounted for 33.2% of 1126 respondents, and mental health had no significant association with working status among pregnant and puerperium women. Multiple logistic analyses showed the significant associations between mental health and psychosocial stressors: family relationship, pregnancy and birth, andincomes/ family budgets/ debts,regardless of employed or unemployed. After stratified by working status, whereas ones job stressor had an association with mental health only for employed females, stressors forones disease/long -term care and housework had associations only for unemployed ones. For employed women, the primary factor for mental health wasfamily relationship stressor. Conclusion Although mental health status measured by K6 was not different between employed or unemployed female population, primary stressors related mental health was revealed to differ with working status. Especially, family relationship stressor was the highest risk factor of mental health in employed women. More importantly, the results provided evidence on the differences in associations between mental health and specific psychosocial stressors by working status. Psychosocial risk assessments and interventions on working status among pregnant and puerperium women should be imperative to pay attention for social politics

Development of a New Automated Synthesis System of [F-18]FDG

開始ページ、終了ページ: 冊子体のページ付

Reconstruction of the esophagojejunostomy by double stapling method using EEA™ OrVil™ in laparoscopic total gastrectomy and proximal gastrectomy

Here we report the method of anastomosis based on double stapling technique (hereinafter, DST) using a trans-oral anvil delivery system (EEATM OrVilTM) for reconstructing the esophagus and lifted jejunum following laparoscopic total gastrectomy or proximal gastric resection

Cancer Detection with 18F-5-Fluorodeoxyridine. A New Cancer Diagnostic Agent Reflecting the Nucleic Acid Metabolism

開始ページ、終了ページ: 冊子体のページ付

Confluence up to Garbage

No abstract available

Current and Future Aspects of Cancer Diagnosis with Positron Emission Tomography: Biological and Clinical Aspect

開始ページ、終了ページ: 冊子体のページ付

An Experimental Study for Diagnosis of Orbital Tumor by Positron CT using 18F Fluorodeoxyuridine in Animal Studies

開始ページ、終了ページ: 冊子体のページ付