김성렬 교수

Chemical etching, plasma, and ion beam treatments were used to modify the surface of Polytetrafluoroethylene (PTFE). Each surface treatment method developed different surface characteristics. In addition to morphological observation, contact angle, atomic chemical composition, and adhesion strength were measured after treatment with various methods. The different adhesion strengths were explained based on the morphology and atomic chemical composition of the treated PTFE surfaces. The chemical e

BACKGROUND: Supine recumbence has been widely performed to prevent post-lumbar puncture headache (PLPH). However, the optimal duration of supine recumbence is controversial. The aim of the study is to compare the occurrence of PLPH according to the duration of supine recumbence in patients with neurological disorders. METHODS: A non-equivalent control/experimental pre-/post-test study design was used. Seventy consecutive patients were prospectively enrolled between July 2007 and July 2008. Thirt

AIMS: To test a hypothetical path model evaluating the influence of type D personality on job stress and job satisfaction and to identify the mediating effects of compassion fatigue, burnout, and compassion satisfaction among clinical nurses in South Korea. BACKGROUND: Personalities susceptible to stress, compassion fatigue, and burnout in clinical nurses have negative effects on the job stress and job satisfaction. DESIGN: A correlational, cross-sectional design was used. METHODS: A convenience

The determination of polycyclic aromatic hydrocarbons (PAHs) in human milk is relevant in assessing the dose to mothers and infants. Since measurements for the United States are lacking, we analyzed 13 PAHs in human milk from 12 nonsmoking American mothers. Analytes were extracted from milk by using a combination of centrifugation, liquid-liquid, and solid-phase extraction techniques. Following method validation with spiked bovine milk, PAH concentrations in human milk were determined by isotope

AIMS AND OBJECTIVES: To test a hypothetical path model estimating the influence of resilience and gratitude disposition on well-being in Korean clinical nurses and to verify the mediating effects of burnout, compassion satisfaction and job satisfaction using a multi-mediation model. BACKGROUND: To improve the well-being of nurses, it is necessary to consider their personal and work-related characteristics comprehensively. DESIGN: A descriptive cross-sectional design was used. METHODS: A total of

The present study was conducted to optimize methods for measurement of volatile organic compounds (VOCs) by use of headspace solid-phase microextraction (HS-SPME) and to provide a preliminary assessment of levels in human milk. MTBE (methyl tert-butyl ether), chloroform, benzene, and toluene were measured from two sources of milk: a North Carolina milk bank (n = 5) and multiple samples from three women within nonsmoking households in inner-city Baltimore, MD (n = 8). In Baltimore, indoor air VOC

AIMS AND OBJECTIVES: This study aimed to develop a fall risk perception questionnaire for patients admitted to acute care hospitals and to establish its reliability and validity. BACKGROUND: To prevent falls during patients' hospitalisation, it is essential for them to accurately perceive their risk of falling. DESIGN: This methodological study was performed to develop a fall risk perception questionnaire. METHODS: After generating a preliminary questionnaire, two rounds of content validity test

AIM: To evaluate the effects of an integrated self-management program using a mobile application, a short message service using a smartphone, and face-to-face counseling and education among hemodialysis patients. METHODS: A quasi-experimental study design was used. The participants of this study were 84 hemodialysis patients (42 in the experimental group and 42 in the control group). The experimental group received the integrated self-management program for 8 weeks. The data were analyzed by usi