Unmet Health Needs in Early Childhood in South Korea.

This study aimed to evaluate child health needs in South Korea and the country's healthcare system capacities to meet them. A comprehensive needs assessment was performed by reviewing child health programs in Korea, followed by focus group discussions and individual interviews with multiple health experts and practitioners. Analysis of the meeting and interview transcripts were identified seven major domains of child health needs and healthcare system capacities.

Design Optimization of Bulk Piezoelectric Acceleration Sensor for Enhanced Performance.

While seeking to achieve high performances of a bulk piezoelectric acceleration sensor, we investigated the behavior of the design variables of the sensor components and optimized the sensor design using a numerical simulation based on piezoelectric analysis and metamodeling. The optimized results demonstrated that there was an exponential dependency in the trade-off relation between two performance indicators, the electric voltage and the resonant frequency, as induced by the design characteristics of the sensor. Among the design variables, a decrease in the base height and epoxy thickness and an increase in the piezo element's inner diameter had a positive effect on two performances, while the head dimensions (diameter and height) exhibited the opposite effect on them.

[Factors affecting breastfeeding rate and duration].

Objectives: The purpose of this study is to examine the factors affecting the rate and duration of breastfeeding.

Methods: We analyzed the data from the year 2000 Korea National Fertility Survey that was collected through direct interviews. In particular, the mothers who delivered their last child and the child was under 1 year of age from January 1998 to June 2000 (N=1,066) were analyzed via a logistic model to assess the factors affecting the breastfeeding rate.