Eun-Young Ju

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BACKGROUND The aim of this study is to assess the changes in the causes of valvular heart disease between 2006 and 2011 in Korea. METHODS Data were collected from the Korean National Health Insurance Service from 2006 through 2011. These data consisted of primary diagnoses related to valvular heart disease regardless of other conditions. Valvular heart(More)
and Applied Analysis 3 and satisfying ‖x‖ L 2 (0,T;V)∩W 1,2 (0,T;V ∗ ) ≤ C 1 ( 󵄨󵄨󵄨󵄨x0 󵄨󵄨󵄨󵄨 + ‖k‖L2(0,T;V∗)) , (17) where C 1 is a constant depending on T. Letf be a nonlinear single valuedmapping from [0,∞)× V intoH. (F) We assume that 󵄨󵄨󵄨󵄨f (t, x1) − f (t, x2) 󵄨󵄨󵄨󵄨 ≤ L 󵄩󵄩󵄩󵄩x1 − x2 󵄩󵄩󵄩󵄩 , (18) for every x 1 , x 2 ∈ V. Let Y be(More)
In this paper, we study optimal control problems for parabolic hemivariational inequalities of dynamic elasticity and investigate the continuity of the solution mapping from the given initial value and control data to trajectories. We show the existence of an optimal control which minimizes the quadratic cost function and establish the necessary conditions(More)
AIM The aim of the present study was to show an association between restricted activity related to chronic diseases and suicidal ideation (SI) in elderly Korean adults after adjusting for age, sex, mental health status, socioeconomic position and health behavior factors. METHODS The study sample included 3545 Korean men (n=1473) and women (n=2073), aged(More)
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