医療系データベースを用いた院内死亡および医療費の予測における新たなアウトカム別併存疾患指数の優秀性

京都大学新制・課程博士博士(社会健康医学)甲第23118号社医博第114号新制||社医||11(附属図書館)京都大学大学院医学研究科社会健康医学系専攻(主査)教授 佐藤 俊哉, 教授 森田 智視, 教授 黒田 知宏学位規則第4条第1項該当Doctor of Public HealthKyoto UniversityDFA

Ray class invariants over imaginary quadratic fields

Let $K$ be an imaginary quadratic field of discriminant less than or equal to -7 and $K_{(N)}$ be its ray class field modulo $N$ for an integer $N$ greater than 1. We prove that singular values of certain Siegel functions generate $K_{(N)}$ over $K$ by extending the idea of our previous work. These generators are not only the simplest ones conjectured by Schertz, but also quite useful in the matter of computation of class polynomials. We indeed give an algorithm to find all conjugates of such generators by virtue of Gee and Stevenhagen

Public Opinions on Inter-Korean Economic Cooperation: A Survey Analysis

This research attempts to provide an in-depth analysis of the public perceptions of inter-Korean economic cooperation. KDI survey data with a sample size of 1,000 were subjected to empirical analyses. By means of ordered logit estimations, we derive the following results. First, there is a significant effect of age on economic cooperation perceptions, where younger generations tend to be more negative. Second, the group who has positive view on the economic cooperation tends to prefer large-scale, domestic-entity-funded cooperation projects, whereas the group who has negative view tends to prefer small-scale projects and projects funded by international organizations. According to these results, prioritizing trade with the involvement of international organizations is likely to be an effective measure to alleviate potential political constraints and to achieve sustainable long-run economic cooperation systems when pursuing the economic cooperation