뇌졸중 환자에서 연하장애와 신체기능장애의 연관성

김도성,심영주,김기찬,정호중 고신대학교 의과대학 2010 고신대학교 의과대학 학술지 Vol.25 No.2

Backgrounds : In almost stroke patients, dysphagia is improved with rehabilitation therapy. But, it is not identified the relationship between dysphagia and physical function recovery in stroke patients. Methods : A total of 21 patients with stroke-caused swallowing disorders based on a videofluoroscopic swallowing study (VFSS) were examined swallowing function and physical function at admission and after treatment for 4 weeks (including Vitalstim). Swallowing function was evaluated by the functional dysphagia scale (FDS) using VFSS before treatment and after treatment. Physical function was evaluated by the motricity index (MI) and modified barthel index (MBI) at admission and after 4 weeks. And the relationship between dysphagia and physical function recovery was evaluated. Results : After treatment for 4 weeks, total score, residue in oral cavity, oral transit time, laryngeal elevation and epiglottic closure, residue in valleculae, residue in piriform sinus, coating of pharyngeal wall after swallow were significantly decreased in FDS (p<0.05). There were a significant improvement in MBI (p<0.05) and the correlation between FDS and MBI. But, MI was not showed correlation with FDS. Conclusions : There was relationships between swallowing function improvement and recovery of physical function in almost FDS factors.

스코폴라민 첩포가 젊은 정상 성인 남자의 수면 구조에 미치는 영향

김의중,정도연 大韓神經精神醫學會 1995 신경정신의학 Vol.34 No.5

It is well known that the administration of scopolamine as an injection or oral form could influence the sleep architecture, especially REM sleep latency and duration. In clinical usage of scopolamine, it is the most effective single drug for the prophylaxis and treatment of motion sickness. Among the routes of administration, the patch form is preferred, because of its easy administration and the long duration of action(72hr). But there have been found no studies about the effects of scopolamine patch on sleep. In this study the authors intended to find the effects of scopolamine on sleep variables, especially REM sleep-related variables using transdermal scopolamine patch. One scopolamine patch contained 1.5mg of scopolamine. For each of the eight young adult male volunteers, the authors applied scopolamine patch and placebo alternatively in a randomized double-blind cross-over design. The subjects' sleep was studied polysomnogaphically using Grass model 78 polysomnogaph for three nights including one adaptation night. The scopolamine patches did not alter sleep architecture such as percentage of sleep stage 1, 2, 3, 4 and REM. Total wake time, sleep latency and sleep efficiency were not different between scopolamine and placebo nights. REM latency, duration of each REM sleep period and total REM sleep period did not differ between scopolamine and placebo nights. The authors conclude that the administration of a single patch of scopolamine in the evening for the night time travellers may have apparently minimal effects on sleep and does not seem to influence the major sleep architecture. However, it still remains to be answered whether scopolamine patch influences the "micro" level of sleep structure and/or function, such as phasic REM components.

패혈증 백서 모델에서 비타민-C의 효과

이중의,신상도,표창해,서길준,정성은,윤여규 대한응급의학회 1999 대한응급의학회지 Vol.10 No.4

Background : Multi-organ failure from sepsis is very lethal disease entity, which is suspected to be caused by activated inflammatory cells. Inflammatory cells activated by endotoxins generate oxidants and cytokines such as TNF-α and IL-6, which in turn stimulate macrophages and neutrophils. Augmented inflammation makes an organ-injury deteriorate into an organ-failure, which may progress to multi-organ failure. This study is designed to evaluate the therapeutic effects of vitamin-C, a scavenger of oxidants, in sepsis. Methods : Male Sprague-Dawley rats were divided into 3 groups : a control group, a group injected intrapetoneally with LPS(lipopolysaccharide), and a group injected intraperitoneally with LPS and vitamin-C. Each eight rats were sacrified 24 hours and 48 hours after injection, and samples of the blood, the liver and the lung were obtained. Biochemical assays of TNF-α level in the blood and malondialdehyde(MDA)level, catalase activity and nitric oxide synthase(NOS)activity in the liver and the lung tissues were performed. Results : Serum TNF-α level, tissue lipid peroxidation and tissue i-NOS activity were dramatically increased, and tissue catalase activity was exhausted rapidly in sepsis. High dose vitamin-C administration decreased serum TNF-α level, tissue lipid peroxidation and tissue i-NOS induction, and protected against catalase exhaustion. Conclusion : high dose vitamin-C therapy was proved to have definite antioxidant effect in septic condition.

건강한 성인과 성인편마비의 표면열 적용시 사지에서의 동통역치 변화에 관한 연구

김중휘,홍도선,이정원 한국전문물리치료학회 1996 한국전문물리치료학회지 Vol.3 No.2

대학생 자원봉사활동의 실증적 연구

양점도,김중대 韓國福祉行政學會 2000 복지행정논총 Vol.10 No.-

자동차 엔진 밸브 스프링의 최적설계에 관한 연구

김도중 울산대학교 기계부품 및 소재 특성평가연구센터 1999 연구보고서 Vol.1999 No.-

밸브 스프링은 밸브트레인의 동적 거동과 엔진의 성능에 매우 중요한 영향을 미치는 부품이다. 스프링의 설계 공간 제약과 높아지는 성능 요구 조건으로 인하여 최근에는 비원형 단면 스프링의 사용이 보편화되고 있다. 본 연구의 목적은 엔진 사양에 가장 적합한 최적원형 단면 스프링의 응력 분포, 밸르 스프링의 비선형 진동특성. 밸브트레인의 운전 성능, 등이 고려될 것이다. 1차년도 연구인 당해년도에는 비원형 단면을 가지는 밸브 스프링의 응력 분포를 계산하는 프로그램을 개발했다. 이론적인 해가 존재하는 몇 가지 예에 대하여 프로그램을 실행한 결과 이론값과 응력분포를 얻었다. 프로그램은 주어진 엔진에 가장 적합한 최적의 밸브 스프링을 설계할 수 있도록 확장될 것이다. Valve spring is one of critical components which influence valve train dynamics and engine performance. Because the size and performance are so tightly controlled, recent engines have a tendency to use valve springs with non circular cross section wire. The purpose of this study is to develop a computer software for designing optimal valve springs. The program includes stress analysis of valve spring with non circular cross section, vibration analysis of nonlinear spring surging, and kineto-static analysis of valve trains. In this year, a computer program was developed which analyze stress distribution in the valve spring wire with non circular cross section. In the test run of typical problems, the program gives exact values with analytical solutions. The program will be extended to design an optimal valve spring which gives best performance for a given engine.

광대역 전달소음저감을 위한 압전지능패널

이중근,박우철,이현창,정달도 三陟大學校 2001 論文集 Vol.34 No.1

In this paper, the transmitted noise reduction of piezoelectric smart panels is experimentally studied. The proposed piezoelectric smart panels are comprised of plate structure on which piezoelectric sensor/actuators are bonded and sound absorbing material and/or gap are provided. It is a combination of passive and active approaches utilizing a passive effect at high frequencies and active effect at low frequencies. To prove the concept of piezoelectric smart panels, and acoustic measurement experiment is performed. An acoustic tunnel is designed and its acoustic characteristics are tested. Below 800㎐, the tunnel exhibits a plane wave guide characteristics. When an absorbing material is bonded on a single plate, a remarkable transmitted noise reduction in mid frequency range is observed except the first resonance frequency. By enabling the active control of smart single panel, much noise reduction is achieved at the resonance frequencies. The smart double panel has more potential to reduction the transmitted noise in wide range frequency. Piezoelectric smart panels incorporating passive absorbing material and active piezoelectric devices is a promising technology for noise reduction in a wide range frequency.

초등학생들의 물질 개념에 관한 연구

김석중,남철우,김정길,송판섭,한광래,최도성,김숙희 光州敎育大學校 初等敎育硏究所 2002 初等敎育硏究 Vol.17 No.-

Over the past 20 years, research on students' conceptual development of science concepts has begun to inform educators about the roles that prior knowledge and experiences play in the development of conceptual understandings. Whereas many initial studies focused on identifying and cataloging naive of misconceptions, more recent research has focused on how student concept development research can inform teaching practice and curriculum design. In this study, we investigated children's (ages 11∼12) spontaneously constructed or naive understanding of the particulate nature of matter prior to any formal instruction in the domain. Thirty students were interviewed concerning their understanding of the macroscopic and microscopic properties of the states of matter(solid, liquid, and gas), as well as their macro/microscopic understanding of phase changes and dissolving. Children expressed ideas about states of matter which were categorized as macrocontinuous, macroparticulate, or microparticulate. Furthermore, a substantial number of the children provided explanations of properties and processes which were consistent with those beliefs. These children's beliefs about matter were not fully and consistently developed across the spectrum of substances from continuous solids to particulate solids to liquids to gases. We speculate that children first develop local frameworks particular to different classes of substances and then slowly expand these frameworks to include a wide range of substances and their properties as well as such processes as melting and freezing.

직장여성의 직무태도 및 성과 : 직종별 비교연구

이도화,이미자,강인중 인제대학교 1998 仁濟論叢 Vol.14 No.1

This study aims to examine whether there is gender differences in job attitudes(i.e. job satisfaction, organizational commitment, work role centrality) and job performance, and whether those differences, if any, may be related to sex discrimination in personnel management practices and personal experiences of sex discrimination. In order to pursue above research questions, questionnaire survey was conducted for 600 workers in several different industries including manufacturing firms, banks, and high schools. The main results of One-way ANOVA are as follows: (1) For administrative worker group, job satisfaction of female was found to be lower than that of male. (2) For production worker group, organizational commitment of female was higher than that of male. (3) For professional worker group, overall job attitudes including job satisfaction, organizational commitment, and work role centrality were found to be higher than those of male workers. (4) Sex discriminations in personnel management and personal experiences of sex discrimination were highest for administrative worker group and lowest for the professional worker group. The above results suggest that females' poor job attitudes may be related to sex discrimination practices in the workplace. The implications of the these results and future research directions are discussed in the conclusion.

직장여성의 직무태도 및 성과의 결정요인 : 상황적 요인과 성역할 태도 The Influence of Situational Factors and Sex Role Attitudes

이도화,이미자,강인중 인제대학교 인문사회과학연구소 1998 인문사회과학논총 Vol.5 No.1

This purpose of this study is to examine the effects of antecedents of job attitudes and performance of working women. The antecedents studied in the past literature include (1) situational factors such as tenure, position, age, pay, education, and (2) socialization factors. But the latter have seldom been submitted to empirical testing. This study attempts to test empirically the effects of both sets of variables on job attitudes of working women. Specifically, the hypothesis tested is as follow : the difference of job attitudes and performance between male and female will be affected not only by situational factors and sex per se but also by sex role attitudes, which are expected as being influenced by socialization practices. Under this hypothesis, questionnaire survey was conducted for 600 workers including production, administration, and professional workers. The major finding is as follow: The hypothesis was upheld for job satisfaction among production and administration workers and for organizational commitment among adminstration workers. The implication of these results and future research direction are discussed.