• 한국보건간호학회지
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• 제18권1호
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• pp.103-118
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• 2004

The purpose of this study was to understand the process and investigate basic theory of fatigue experience of shift work nurses. The present study adopted grounded theory methodology on fatigue of shift work nurses. The participants for this study were 15 shift work nurses who were in the age of 25 to 35, the clinical experience of 2 to 14 years and the work department of ICU. ER. ward and delivery room. The data were collected from 2000 to 2003 by using interviews and observations. The contents of the interviews were tape-recorded and were drawn through repeated method. And then were analyzed into the concept, subcategories, and categories with the open coding process and axial coding was done to identify the relationships of the concepts and categories according to the paradigm models. The core category generated, which was a central phenomena of the exhaustion process. The causal condition is change events. The central condition of exhaustion were sorted as physical discomfort, decreasing vigor, psychological instability, feeling of sleeping desire, changing face impression and being heavy body. The intervening condition were discovered as social$\cdot$ psychology$\cdot$physical resist and positive$\cdot$negative interaction strategies. The consequences of the fatigue process is the short term exhaustion relief and long term residual exhaustion. The fatigue process of this study was 'break through exhaustion' of change event-exhaustion-resist-resolve intervention-adaptation. This study offers better understanding on fatigue process of shift work nurses and may facilitate more appropriate interventive strategies to support, information and knowledges according to fatigue process.

• 대한치과교정학회지
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• 제20권3호
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• pp.447-462
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• 1990

The objective of this experiment is to observe structural differences in the othodontic movement of vital (control group) and devitalized (experimental group) teeth in the mongrel dogs. The 5 utilized dogs in this experiment were approximately 1 year of age and their average weight was about 12 Kg. Endodontic therapy was performed on the 2nd premolars in upper & lower jaws of each animal under the general anesthesia by intravascular injection of 25mg/kg of pentobarbital sodium. The canals of the teeth were obturated by using gutta percha in conjunction with root canal sealer (AH26 Densply). One of the roots in the 2nd premolars was hemisected to make an extraction space for the devitalized teeth to be moved. The edgewise technique was employed for the movement of the teeth. Orthodontic models and intraoral roentgenograms were taken before and after orthodontic tooth movement. The open coil springs (.010 x .040) were used at interbraket space in order to provide equal forces (75gm) between the teeth in each arch wire. After 13 weeks of active orthodontic tooth movement, dogs were sacrified and the experimental results w ere examined through the intraoral radiography, microscopic examination and scanning electromicroscopic examination at the root sulfate. From the results of the study, the following conclusions may be drawn: The root resolution and cemental deposition were observed within the pressure and tension site in both group. 2. The root resorbed lacunae were observed in the cementum and/or into the dentin in both group. 3. The prominent osteoblastic activities were observed on the alveolar margin in the tension site in both group. 4. A few of blood vessels were observed in the pressure site, but also lots of blood vessels were observed in the tension site especially in the periphery of the alveolar bone in both group. 5. In the pressure site, resorbed lacunae were formed with deep and narrow cavity in the control group; the shallow and wide cavity in the experimental group. 6. In the pressure site, the repaired cementum or cementoid tissue was lined on cementum in the experimental group, but not in the control group. 7. There was no significant difference between external root resolution of endodontically and vital teeth when both were subjected to orthodontic forces.

• 한국지역사회생활과학회지
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• 제16권2호
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• pp.111-120
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• 2005

Recently, the number of elderly people in the rural area of Korea has increased remarkably and their food security has become deteriorated mainly due to the low economic status. To investigate the food security for the elderly people, relevant data were obtained by offering questionnaire to the rural elderly people who were engaging in traditional agricultural production for daily foods. The subjects of 1870 were collected in 9 provinces according to PPS(Probability Proportional to Size). Questionnaire contained the items of dietary habit, food cultivation, Production and Preservation, and the suey was conducted by trained interviewers. SAS (ver 8.1) was used for statistical analyses in which Chi-square tests and General Linear Models were made. Family of the elderly people was $45.4\%$ of the total and the characteristics of elderly families were that age of male head was 82.1 years and that of female was 67.7 years, and that $68.8\%$ of elderly women were working for family income or pocket money. The elderly families' food cultivation state was surveyed and they were pepper$(59.1\%)$, chinese cabbage$(61.91\%)$, and sesame$(48.6\%)$ for their own consumption. But, bean sprout$(6.5\%)$, tofu$(7.7\%)$ and egg$(5.1\%)$ showed low rate of cultivation for the family. The rate of cultivating chinese cabbage$(61.9\%)$, and sesame$(48.6\%)$ was significantly higher than that of middle aged family. At the status of fermented food production for the elderly family, Doenjang$(87.4\%)$ and Gochujang$(86.3\%)$ Kanjang$(84.0\%)$ Kimchi$(92.9\%)$ Jangachi$(27.6\%)$ and Meju$(91.61\%)$maintained higher rate than that of middle aged families' Food preservation of elderly families was low and there are just jam$(5.3\%)$ and bottled products$(1.4\%)$. A little higher rate was observed lot the preserved food such as alcohol$(9.9\%)$ and powder$(9.8\%)$. For the elderly family the score of food cultivation was 4.08/12 points and that of food preservation was 0.62/12 points. The score of fermented food production for elderly family was 10.24/12 points which was significantly different from that of middle aged family (9.58/12 points, p<0.001). This result suggests that for the elderly people food with more protein is needed for production.

• 서비스연구
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• 제9권3호
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• pp.1-16
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• 2019

본 연구는 선행연구들에 이어서 서비스철학 정립을 위해 서양 대표사상의 서비스철학성을 고찰하였다. 선행 연구들을 참조하여 서비스철학의 구조와 운용모델을 종합하여 제시하고, 서양 대표사상의 서비스철학성을 분석하였다. 시대별로 서양 대표사상을 분석하였는데, 고대 지중해 철학, 아테네철학을 서비스구조 관점에서 상세히 분석하고, 근대 사상과 현대사상은 서비스 운용모델 정합성 관점에서 자세히 분석하였다. 서비스의 무형성과 과정성 특징이 서양 대표사상의 세계관과 부합하는지를 분석하고, 서비스의 본질적 특성인 관계성, 쌍방향성, 수평성, 조화성이 서양대표사상에서 공통적으로 강조되고 있는지를 분석하였다. 또한 서비스의 나선형 발전 모델이 서양대표사상에서의 세계 발전 모델과 정합되는지도 고찰하였다. 고대 사상에서 근대사상까지 주류 사상들은 대립물의 변증법적 발전을 강조하고 있어 서비스의 태극형 기본 구조가 서양 사상에서의 세계의 운행구조와 부합되고 있는 것으로 나타났다. 또한 고대에서 현대 사상에 이르기까지 순환론과 과정론이 중심사상으로 나타나고 있어 프로세스가 가치를 창출하는 서비스 운용모델과 일관성이 있는 것으로 나타났다. 관계성과 조화성은 대다수의 서양사상가들이 세상의 근본 운행원리로 제시하고 있으며, 쌍방향성과 수평성도 세상의 이상적인 운영모델로 제시되고 있다. 서양 대표사상들을 활용하여 서비스철학을 보다 심화시킬 수 있으며, 인류사회를 이끌어가는 사상으로서 서비스철학이 중심 역할을 할 수 있음이 확인되었다. 향후 신경제사회의 중심사상으로서 서비스철학의 구조와 운용원리를 완성하기 위한 후속 연구들이 필요하다. 미래 경제사회 발전을 견인하는 큰 사상으로서 서비스철학 완성 연구가 필요하다.

• 대한인간공학회지
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• 제34권1호
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• pp.45-62
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• 2015

Objective: The purpose of this study is to investigate the effect of personality type on human performance tool compliance in nuclear power plants (NPPs) and to propose general recommendations for an enhancement of its practical utilization. Background: Various guidelines, regulating criteria, and recommendations have been developed to prevent human errors in NPPs. Despite these efforts, the accidents sometimes caused by human errors have steadily occurred, and therefore, various human performance tools have been adopted as countermeasures against human errors. The major and inevitable contributing factors among the many hazards to human errors might be the trait and personality, which are considered to be the inner world of humans. Thus, we try to investigate the utilization of human performance tools by considering the different types of operating crew personalities, and we suggested more practical recommendations to prevent human errors according to the personality. Method: We developed the Questionnaire using the Big 6 (HEXACO) models, which are human performance tools for workers in NPPs, and individual (condition) variables to investigate the effect of personality types on human performance tools. We slightly modified them to help the survey respondents understand them better. A survey was conducted for ordinary people over the age of 20. SPSS 22.0 was used to perform a correlation analysis and a hierarchical regression analysis to find the relationship between personality types and human performance tools. Results: The utilization of human performance tools shows significant differences statistically by personality. The correlation result reveals that the types of Honesty (H), Extraversion (X), Conscientiousness (C), and Openness to experience (O) show a higher utilization of human performance tools. In hierarchical regression results, human performance tools of task preview, questioning attitude, stopping when unsure, self-checking, effective communication, and place-keeping show a higher utilization with personality types. However, the Agreeableness (A) type did not show significant differences statistically with human performance tools. Conclusion: We tried to investigate the utilization of human performance tools by considering the different types of human personality and provide more practical recommendations to prevent human errors according to the personality. These results will be able to prevent human errors owing to the characteristics (advantages and disadvantages) of personality types. Application: This information can be utilized as guidelines for proactive recommendations according to the workers' personalities for more practical human performance tools to prevent human errors in an NPP.

• Safety and Health at Work
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• 제8권1호
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• pp.36-41
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• 2017

Background: Police work is generally sedentary although there may be situations that require physical endurance and strength, such as foot chases and arresting suspects. Factors such as excessive body fat can impede an officer's physical ability to deal with such occurrences. Our objective was to examine associations between officers' body fat percentage (BF%) and performance on a standardized fitness protocol. Methods: Data were obtained from fitness screening among 1,826 male and 115 female officers in a large US police agency. The screening consisted of a 2.4-km run, push-ups, sit-ups, and sit-and-reach test. Sex-specific body fat percentages were estimated from skinfold thickness measured using calipers. Linear regression models were used to examine unadjusted and adjusted mean scores of fitness tests across BF% tertiles. Results: The prevalence of overall fitness was 4.3 times greater in male officers and 3.6 times greater in female officers having the lowest BF% tertile compared with the highest tertile (30.3% vs 7.1% and 46.0% vs 12.8%, respectively). BF% was linearly and positively associated with the time of 2.4-km run (p < 0.001), and linearly and inversely associated with the number of push-ups (p < 0.001), sit-ups (p < 0.001), and the distance of sit-and-reach (p < 0.001) in men. Similar associations were observed in women with the exception of sit-and-reach (p = 0.122). Associations were independent of age, race/ethnicity, rank, and duty station. Conclusion: Overall, BF% was inversely associated with fitness levels in male and female officers. Future longitudinal studies should be initiated to explore the potentially causal relationship between BF% and fitness in law enforcement officers.

• 대한치과기공학회지
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• 제11권1호
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• pp.71-81
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• 1989

This study was aimed for bettering productivity and technical level of the dental 1 aboratory, and helping the dental technician's benefits and rights, and then endowing them some belonged atmospher and stability on their post by Improving job- satisfaction and maintaining the transferability of one's post at a proper limitation. Therefore, 320 dental technicians extracted randomly from all the technicians working at 494 dental laboratories were subjected for this study. The approach to the study was a way through some postal questionaires executed from March 29, 1988 until May 4, the same year, in which total 254 technicians answered, showing 79% resp"nserate. responserate. The data-analysis was done by a model of the dental technician's transferability from their post, as considering Mobley's(1978)-model of post-transferability, and results through the study are as follows : 1. Satisfaction at a given post showed that the married is better than the unmarried(<0.05), and the experienced is better than the inexperienced(P<0.01). 2. Age, sex, educational experience, and one's service-duration did not affect significantly to the respondent's satisfaction on their post, statistically. 3. Satisfaction at a given post differed in adccordance with given conditions of one's post, i. e.,it stowed high when the monthly payment was good(P<0.05), and when too much duty on their job was given, it was the worst as shown in an example of the next order, too much

• Genomics & Informatics
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• 제14권2호
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• pp.62-68
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• 2016

Osteoporosis is a medical condition of global concern, with increasing incidence in both sexes. Bone mineral density (BMD), a highly heritable trait, has been proven a useful diagnostic factor in predicting fracture. Because medical information is lacking about male osteoporotic genetics, we conducted a genome-wide association study of BMD in Korean men. With 1,176 participants, we analyzed 4,414,664 single nucleotide polymorphisms (SNPs) after genomic imputation, and identified five SNPs and three loci correlated with bone density and strength. Multivariate linear regression models were applied to adjust for age and body mass index interference. Rs17124500 ($p=6.42{\times}10^{-7}$), rs34594869 ($p=6.53{\times}10^{-7}$) and rs17124504 ($p=6.53{\times}10^{-7}$) in 14q31.3 and rs140155614 ($p=8.64{\times}10^{-7}$) in 15q25.1 were significantly associated with lumbar spine BMD (LS-BMD), while rs111822233 ($p=6.35{\times}10^{-7}$) was linked with the femur total BMD (FT-BMD). Additionally, we analyzed the relationship between BMD and five genes previously identified in Korean men. Rs61382873 (p = 0.0009) in LRP5, rs9567003 (p = 0.0033) in TNFSF11 and rs9935828 (p = 0.0248) in FOXL1 were observed for LS-BMD. Furthermore, rs33997547 (p = 0.0057) in ZBTB and rs1664496 (p = 0.0012) in MEF2C were found to influence FT-BMD and rs61769193 (p = 0.0114) in ZBTB to influence femur neck BMD. We identified five SNPs and three genomic regions, associated with BMD. The significance of our results lies in the discovery of new loci, while also affirming a previously significant locus, as potential osteoporotic factors in the Korean male population.

• 한국산학기술학회논문지
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• 제17권1호
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• pp.62-71
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• 2016

식품 불안정성(Food insecurity)은 불건강과 연관성이 있다. 특히 식품 불안정성은 우울증, 우울감 등 정신건강의 문제를 야기한다고 알려져 왔다. 본 연구는 대한민국 성인의 식품 불안정성 상태를 파악하고 식품 안정성 구분에 따른 정신건강과의 연관성에 대해 알아보는 것이 그 목적이다. 연구 대상자는 2013년 국민건강영양조사에 참여한 성인 5,685명을 대상으로 하였다. 결과변수로 우울감과 우울증을 선정하였으며 우울감은 최근 1년 내 2주 이상 우울감이 있는 경우로 정의하였고 우울증은 평생 우울증 진단 여부로 정의하였다. 빈도, 평균 값을 산출하였고, 다변량 로지스틱회귀분석을 사용하여 식품불안정성과 우울감, 우울증의 관련성을 파악하였다. 연구 결과 식품 불안정성은 고 연령, 사회경제적 수준이 낮은 집단에서 유의하게 높은 빈도를 보였다. 전체 대상자의 3.8%가 우울증, 11.3%가 우울감을 호소하였다. 식품 불안정성은 비 보정모델, 성-연령 보정 모델에서 우울감, 우울증을 유의하게 증가하였다. 혼란변수를 보정한 최종 모델에서 식품 불안정성 그룹은 식품 안정성을 확보한 그룹에 비하여 우울증이 3.49배, 우울감이 3.7배 증가하였다. 식품 불안정성 초기 그룹은 최종 모델에서 우울감에서만 1.69배 증가 결과를 보였다. 연구 결과 한국 성인의 식품 불안정성과 우울감, 우울증의 유의한 증가를 확인할 수 있었다. 향후 식품불안정성을 감소시키고 이로 인한 불건강을 해소하기 위하여 중재프로그램을 실시할 때 영양, 건강프로그램의 단순 접근이 아니라 영양, 건강증진팀 및 식품의 안정적 수급을 위한 정책적 지원까지 다학제적 접근이 반드시 필요하다.

• 한국콘텐츠학회논문지
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• 제13권9호
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• pp.92-101
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• 2013

말레이시아는 필리핀, 미얀마, 헝가리, 우즈베키스탄 등과 함께 한류성장단계로 분류된다. 성장단계는 한류가 일반인들에게 널리 알려지고 인기가 있으며 일반인 대상으로 한류 관련 상품의 판매가 도입되고 있는 상태를 말한다. 본 연구의 목적은 한류성장단계에 속하는 말레이시아 청소년과 성인들의 한류에 대한 의식을 비교하는데 있다. 이 두집단을 대상으로 FGD(Focus Group Discussion) 를 통해 한국에 대한 인상, 다른 문화에 대한 관심과 접촉 경로, 한국 대중문화의 특징, 한류의 성공에 대한 인식, 한류의 문제점, 한류의 극복 과제들에 대해 살펴보았다. 그 결과, 말레이시아인들의 한류에 대한 관심은 성별 및 연령별로 다르게 나타나고 있다. 20대들은 남녀 모두 한류에 대한 비교적 높은 관심을 나타냈으나, 30대 이상에서는 그리 높은 호응도를 보이지는 않았다. 그러나 말레이시아인들은 대체로 외래문화의 수용에 있어서 상당히 개방적인 태도를 보이고 있다. 이는 한류에 대한 견해에서도 그대로 드러나 한국 드라마나 영화, 음악에 대한 배타적 태도보다는 하나의 유행적 흐름으로 파악하고 있다. 따라서 반한류와 같은 배타적 태도를 염려할 필요는 없으나, 한류 영향력을 꾸준히 지켜가지 않고서는 언제든 타국의 문화로 대체될 가능성을 지니고 있어, 한류의 지속화 방안 모색이 필요하다고 본다.