• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.3
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• pp.1220-1228
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• 2012

This study was carried out in order to offer medical service in good quality by enhancing dental hygienists' job satisfaction and to arrange basic data necessary for individual development and health promotion in dental hygienists through grasping the job stress level and job satisfaction of being experienced by dental hygienists, and the correlation. The self-administered questionnaire was surveyed and collected from August 1-12 of 2011 targeting 210 dental hygienists of general hospitals, dental hospitals, and dental clinics nationwide(Seoul, Gyeonggi, Daegu, Pohang).The analysis was made on 205 people. The collected data was analyzed by using SPSS WIN 15.0 program. As a result, out of job stress, the average was indicated to be the highest with 2.71 in 'job demand.' As a result of examining about sphere-based relationship between health perception level and job stress related to building in dental hygienists, the central nervous system manifestation showed statistically significant positive correlation with physical environment(r=.281, p<.001), job demand(r=.281, p<.001), relational conflict(r=.163, p<.05), organizational system(r=.166, p<.05), compensation inappropriateness(r=.267, p<.001), and job stress(r=.311, p<.001). Overall, the building-related health perception level showed statistically significant correlation with physical environment(r=.259, p<.001), job demand(r=.311, p<.001), relational conflict(r=.172, p<.05), organizational system(r=.158, p<.05), compensation inappropriateness(r=.197, p<.01), and job stress(r=.275, p<.001). They need to improve their quality of life and life and mental health by developing proper air conditioning system and using one in their work place. if so, they could contribute to better quality of oral cavity service for everyone.

• Journal of Korean Academy of Nursing
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• v.50 no.2
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• pp.210-227
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• 2020

Purpose: This study aimed to develop a scale to measure variables related to alcohol drinking prevention behavior in early elementary school, based on the theory of planned behavior. Methods: A scale was developed to measure variables related to alcohol drinking prevention behavior. Initial items for direct evaluation were constructed through a literature review, and those for belief-based indirect measure were generated through interviews with 30 second- and third-grade elementary school students. The collected data from 286 third-grade elementary school students were then subjected to item analysis, exploratory and confirmative factor analysis, criterion-related validity testing, and internal consistency assessment. Results: The final scale consisted of 35 items. Intention, attitudes, subjective norms, and perceived behavioral control explained 82.7% of the variance; behavioral beliefs, normative beliefs, and control beliefs explained 65.6% of the variance; and evaluation of outcome, motivation to comply, and power of control beliefs explained 72.8% of the variance. The confirmatory factor analysis indicated that the theoretical models had a satisfactory goodness of fit. Criterion-related validity was confirmed between the direct evaluation variables and the indirect measure variables (attitudes r=.64, p<.001; subjective norms r=.39, p<.001; perceived behavioral control r=.62, p<.001). Cronbach's α was .89 for the direct evaluation variables and .93 for the indirect measure variables. Conclusion: The scale developed in this study is valid and reliable. It could be used to measure and explain variables related to alcohol drinking prevention behavior in early elementary school.

• The Journal of the Korea Contents Association
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• v.12 no.9
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• pp.234-243
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• 2012

The purpose of this study was to estimate the prevalence of musculoskeletal symptoms and work-related factors of these symptoms in dental hygienists. The self-administered questionnaire was surveyed and collected from August 1-12 of 2011 targeting 210 dental hygienists Seoul, Gyeonggi, Daegu, Pohang. Except 5 people whose responses are not clear and who suffered accident, the analysis was made on 205 people. Data analysis was performed using the chi square test and multiple logistic regression analysis using the SPSS WIN(ver 18.0) program, RULA and, REBA. The overall Experience rate of musculoskeletal symptoms was 95.6% (196/205). The specific Experience rate of musculoskeletal symptoms for different regions of the body were as follows:The highest was shown 82.4% in Neck-shoulders(R), 78% in Neck, 69.8% in shoulders(R), 66.3%in Wrist(R). Therefore, Improvements of working environments in dental clinics are needed to prevent musculoskeletal disease development in dental hygienists.

• Journal of the Korea Convergence Society
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• v.8 no.2
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• pp.73-81
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• 2017

The purpose of this study was to investigate the relationship among bullying, ego-resilience, perceived stress and adaptation on college in nursing students. A total of 212 students from 1-4 grade in one nursing college were recruited into the study. The data were collected using questionnaire about bullying, ego-resilience, perceived stress and adaptation and were analyzed with PASW Statistics 18.0 program. Bullying and perceived stress had a significant negative association with nursing college adaptation(r=-.261, p<.001; r=-.261, p<.001) and nursing college adaptation was positively correlated with ego-resilience(r=.337, p<.001). The significant predictors of nursing college adaptation were grade(${\beta}$=-.216, p=.003), satisfaction with major(${\beta}$=-.245, p<.001), the latest semester grade(${\beta}$=.210, p=.028) and ego-resilience (${\beta}$=.324, p<.001), explaining 29.1% of the variance in nursing college adaptation(F=9.691, p<.001). According to the results, ego-resilience could be a key factor to improve college adaptation and bullying and perceived stress were associated with adaptation. Therefore many trials have to be need for enhancing college adaptation in a multiple and convergent way and it is suggested that the program to strengthen college adaptation should be developed.

• YAKHAK HOEJI
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• v.32 no.3
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• pp.170-176
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• 1988

The resolution of five amino acids derivatives by gas chromatography on phenylthiohydantoin derivatives as chiral stastionary phase was investigated. (S)-5-isopropyl, isobutyl, (sec)-butyl and benzoyl derivatives of $N^3-phenyl-2-thiohydantoin$ were synthesized from L-valine, L-leucine, L-isoleucine and L-phenylalanine, respectively. The phases were employed at several column temperatures ($140^{\circ}C{\sim}210^{\circ}C$). The separation factors were compared with each stationary phase with varying R groups. The possible mechanism of chiral recognition was investigated by NMR technique.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2007.12a
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• pp.210-212
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• 2007

본 논문은 내륙 운송 체계 하에서 공 컨테이너의 효율적인 재고관리 문제에 대하여 다루고자 한다. 그리고 실제 컨테이너 선사가 공 컨테이너 운영 관리에 있어서 예측하기 힘든 고객의 수요 및 공급 등의 불확실한 요소들을 고려하기 위하여 공 컨테이너의 수요와 공급을 확률변수로 가정하였다. 이러한 가정을 바탕으로 시뮬레이션을 통하여 재고유지비용, 임대비용 및 총 기대 비용을 추정하고 (R, s, S) 재고 정책을 기본 재고정책으로 한 가정 하에 GA (Genetic Algorithm)를 사용하여 총 기대 비용을 최소화 하는 주문, 발주 정책을 도출하고자 한다.

• Proceedings of the Korea Contents Association Conference
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• 2012.05a
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• pp.345-346
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• 2012

본 연구는 치과진료실의 실내 공기질에 영향을 미치는 요인과 종사자의 실내자각증상과 관련성을 조사하여 치과위생사 개인의 발전과 건강 증진에 필요한 기초자료를 마련하고자 본 연구를 시행하였다. 전국(서울, 경기, 대구, 포항)의 종합병원, 치과병원, 치과의원의 치과위생사 210명을 대상으로 2011년 10월 1일부터 20일까지 자기기입식 설문지 조사를 시행한 후 회수하여 응답이 불분명한 5명을 제외한 205명에 대해서 분석 하였다. 수집된 자료는 SPSS WIN 15.0 프로그램을 이용하여 분석하였다. 그 결과 근무 중 휴식시간 유무별로는 근무 중 휴식시간이 없는 치과위생사가 67.3%로 높은 분포를 보였고, 건물 밖 외출 여부별로는 때때로가 54.6%로 절반 이상을 차지하였으며, 건물 밖 외출횟수별로는 1회 86.1%로 대부분을 차지하였으며, 근무기관의 계절별 자연환기 정도별로는 봄, 여름, 가을, 겨울 모두 1일 2회 이내가 절반 이상을 차지하였으며, 다음으로 1일 4회 이내 19.0%, 기타 9.8%, 1일 10회 이내와 하루 종일 2.4% 순이었다. 실내자각증상 호소율에 대해 살펴본 결과는 4점 만점 중 전체 평균이 2.45로 나타났다. 먼저 영역별로는 평균이 '목증상'과 '눈증상'이 각각 2.54로 가장 높았으며, 문항 중에는 평균이 '눈이 잘 피로해진다'가 3.00으로 가장 높게 나타났다. 근무환경 특성에 따른 실내자각증상은 야간진료 여부별로는 야간진료를 하는 치과위생사가 그렇지 않은 치과위생사보다 실내자각증상이 낮았으며, 야간진료 여부에 따라 유의한 차이를 보였다(t=2.07, p<.05). 실내자각증상과 직무스트레스의 관계는 물리환경(r=.259, p<.001)과 직무요구(r=.311, p<.001), 관계갈등(r=.172, p<.05), 조직체계(r=.158, p<.05), 보상 부적절(r=.197, p<.01), 그리고 직무스트레스(r=.275, p<.001)와 통계적으로 유의한 상관관계를 보였다.

• Journal of Korean Academic Society of Home Health Care Nursing
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• v.26 no.1
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• pp.51-63
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• 2019

Purpose: The objective of this study was to investigate mothers' perception of antibiotic use for their children. Methods: A cross-sectional survey was conducted of a convenient sample of 210 mothers who visited the two pediatric hospitals in D city. Descriptive statistics, t-test, analysis of variance, Kruskal-Wallis test, Mann-Whitney U test, and Pearson correlation coefficients with SPSS WIN 24.0 were used to analyze the data. Results: The perception of mothers on antibiotic use for their children was relatively low (3.28/5) and showed a statistically significant difference based on the mothers' educational background (${\chi}^2=15.30$, p<.001). About 57-77% of participants discontinued or reduced the dosage of the antibiotics if their children's symptoms were relieved, and about 60% of them perceived that antibiotics treat viral infections. Mothers' adherence to specific doses of antibiotics in their children was positively correlated with their knowledge and beliefs (r=.17, p=.014) and their attitude regarding the use of antibiotics (r=.17, p=.014). Only 1.4% of the participants had educational experience regarding the correct use of antibiotics. Conclusion: Based on the results, it can be concluded that an educational program for mothers should be developed and to verify its effects in order to induce proper use of antibiotics among mothers.

• Journal of Korean Academic Society of Home Health Care Nursing
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• v.28 no.2
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• pp.135-143
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• 2021

Purpose: This study aimed to provide basic data for the development of education programs which improve the nurses' infection control performance by investigating the knowledge, performance, and educational needs of infection control among nurses in long-term care hospitals, and analyzing the relationship between these parameters. Methods: This was a descriptive study. A self-reported questionnaire was provided to 153 nurses in 210 long-term care hospitals on Jeju Island. Their knowledge, performance, and educational needs of infection control, data were analyzed using SAS Window(ver. 9.4), t-test, Wilcoxon rank-sum test, one-way ANOVA, Scheffe test, and Pearson's correlation coefficient. Results: Both knowledge (r=0.16, p=.042) and performance (r=0.52, p<.001) of infection control had positive correlations with the educational needs of the infection control. Conclusion: The higher the knowledge of infection control was, the higher the educational needs of the nurses were. However, knowledge of infection control did not correlate with performance of infection control. Therefore to increase the knowledge and performance of infection control, infection control education programs should suit the educational needs and the actual conditions of long-term care hospitals.

• Korean Journal of Soil Science and Fertilizer
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• v.34 no.3
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• pp.192-198
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• 2001

This study was carried out to investigate the change of chemical properities and, microorganism due to continual cropping and to find the influences to physiological disordered eggplant fruits. Accumulation of soil nutrients seemed to be increased with the plastic film house duration and decreased with soil depth. The longer the period of eggplant cultivation duration, the lower the ratio of bacteria to fungi(B/F) and actinomycetes to the fungi(A/F) in rhizosphere soils. The soil EC and available $P_2O_5$ were significally correlated with the population densities of fungi($r=0.423^{**}$) and actinomycetes($r=0.438^{**}$), respectively. The ratio of split or drupaceous fruit showed tendency to increase with low soil moisture, and that of hypertrophy fruit showed tendency to increase in fields with longer cultivation years and high soil EC. The soil EC significally correlated with the ratio of hypertrophy fruit ($r=0.719^{**}$, Y=0.210X+0.578)and total physiological disordered fruits ($r=0.656^{**}$, Y=0.769X+7.097). And value of soil (Ca+Mg)/K was correlated with the ratio of physiologically disordered fruits($R^2=0.356^{*}$, Y=-1.333Ln(X)+12.26).