• 생명과학회지
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• 제20권1호
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• pp.71-76
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• 2010

본 연구는 중년 남성들을 대상으로 3년간 1년에 1회씩 3차례에 걸쳐 운동부하 검사 시 심전도 반응을 측정하여 야외 및 트레드밀 걷기 운동 참여 여부에 따라 부하 심전도의 변화에 어떠한 양상이 나타나는지를 규명하고자, 안정 시 신체조성 분석, 운동부하 검사 시 심전도 반응을 측정하였다. 안정 시 신체조성 분석은 체지방율과 BMI를 측정하였고, 안정 시 및 운동부하 검사 시 심전도 반응은 ST/HR 경사 및 QRS 벡터를 측정하였는데, 그 결과는 다음과 같다. 1. ST/HR 경사의 변화에 있어서 운동 6분부터 통제 집단은 감소하기 시작하여 운동 9분과 peak시에 $2.4\;{\mu}V/bpm$ 이하로 감소하여 허혈 증상이 나타났다. 2. QRS 벡터의 축 각도에 있어서 안정 시 전면 축은 시간이 경과함에 따라 통제 집단이 우측으로 유의하게 편향되었고, 안정 시 수평면 축은 시간이 경과함에 따라 통제 집단이 등 쪽으로 유의하게 향하였다. 안정 시 수평면 파고의 길이에 있어서 통제 집단은 시간이 경과함에 따라 유의하게 감소하였고 걷기 운동 집단은 유의하게 증가하였다. 결론적으로 비 활동의 중년 남성들은 운동 중 심근 허혈 유발, QRS 벡터의 편향 등이 현저하게 나타난 반면, 규칙적인 야외 및 트레드밀 걷기 활동에 참여한 중년 남성들은 심혈관계 질환 위험 요소의 감소로 심장기능이 향상된 결과를 알 수 있었다.

• Journal of Periodontal and Implant Science
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• 제36권3호
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• pp.591-600
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• 2006

Purpose: This study assessed the impact of self-reported periodontal health on the oral health-related quality of life among elderly Koreans. Methods: Four hundred twenty one elderly Koreans in Seoul and suburban areas were selected with a cluster (institution) sampling method, and were requested to take oral examinations and finish questionnaires on the Oral Health Impact Profile-14(OHIP-14). and self-reported periodontal health status, such as periodontal symptoms, self-rated periodontal health and periodontal treatment need. As the dependent variable, OHIP-14 showed a positive skewed distribution (skewness: 1.17), we transformed to square-root form to apply parametric analyses. Bivariate analysis by t-test and ANOVA, and multivariate analysis with the two-level regression model accounting clusters were implemented. Results: Mean age of the subjects was 74.6 years and 66.5% were women. Fourteen items of OHIP-14 were summarized to one factor explaining 78.6% of total variance and produced the Chronbach alpha coefficient of 0.92. Results from the multivariate model, adjusting for age, sex, type of institutions, ability to pay, and number of teeth present, showed significantly lower OHIP-14 with reporting less than 3 periodontal symptoms (p(O.OOO1), rating their own periodontal health as above average level (p=O.0144), and thinking they don't need any periodontal treatments in the near future (p=O.0148), than their counterparts. The intraclass-corrrelation estimated by the final model was 0.028. Conclusion: This study demonstrates a significant association between self-reported periodontal health status and the oral health-related quality of life.

• 한국과학교육학회지
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• 제21권1호
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• pp.13-21
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• 2001

본 연구에서는 초등학교 5학년 2개 학급을 대상으로 다중지능에 기초한 프로젝트 활동이 초등학교 아동의 과학 학업성취도에 미치는 영향을 조사하였다. 먼저, 전통적 지능과 다중지능이 과학 학업성취도를 설명하는 변량을 조사하기 위해 과학 학업성취도에 따라 2개 학급의 아동을 과학 상위 중위 하위 성취자 집단으로 분류하였고, 아동 개인의 전통적 지능과 다중지능을 측정하고 이를 과학 학업성취도를 설명하는 정도를 다중회귀분석과 변량분석을 통해 비교하였다. 다중지능에 기초한 프로젝트 활동이 과학 학업성취도에 미치는 영향을 조사하기 위해 연구 대상을 비교집단과 실험집단으로 나눈 다음 비교집단은 전통적인 학습법으로, 실험집단은 다중지능을 활용한 프로젝트 활동을 통해 같은 주제를 학습한 다음 과학 학업성취도를 변량분석을 통해 분석하였다. 이러한 연구 결과, 전통적 지능(24%)보다 다중지능(42%)이 과학 학업성취도 변량을 더 많이 설명해주는 것으로 나타났다. 성취도 수준별로 분석한 결과, 과학하위성취자의 경우는 다중지능을 활용한 프로젝트 활동이 과학 학습 성취도률 높여 주는 데 큰 기여를 하지 않는 것으로 나타났으나, 전통적 학습보다 프로젝트 학습이 과학 상위와 중위 성취자의 과학 학업성취도률 향상에 더 많이 기여하는 것으로 나타났다.

• 디지털융복합연구
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• 제14권8호
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• pp.93-104
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• 2016

본 연구의 목적은 제3문화 청소년의 가족건강성과 민족정체성의 관계에서 자아존중감의 매개효과를 검증해 보는 것이었다. 이를 위해 미국의 동부 버지니아 페어팩스(Fairfax) 카운티 지역과 서부 캘리포니아 얼바인(Irvine) 두 지역을 중심으로 한국인 청소년 혹은 미국시민권을 지니고 있지만 모국이 한국인인 청소년 86명을 대상으로 자료를 수집하여 분석하였다. 자료 분석은 SPSS 18.0 프로그램을 이용하여 기술통계, t-test와 일원분석분석, 상관분석, 회귀 분석을 실시하였고, 매개효과의 유의성을 검증하기 위해 Sobel test를 실시하였다. 본 연구의 주요결과는 첫째, 가족건강성, 자아존중감 그리고 민족정체성은 정적상관을 지니는 것으로 나타났다. 둘째, 가족건강성과 민족정체성의 관계에서 자아존중감은 부분매개효과를 지니는 것으로 나타났다. 셋째, 민족정체성 하위변인 중 민족정체성 탐색의 경우 가족건 강성과의 관계에서 자아존중감이 부분매개효과를 지니는 것으로 나타났으며, 민족소속감의 경우 자아존중감은 유의미한 영향력을 미치는 반면 가족건강성은 유의미한 영향력이 없는 것으로 나타났다. 이러한 연구결과를 바탕으로 건강한 민족정체성 형성을 위한 연구의 함의와 시사점 및 연구의 한계 그리고 후속연구를 위한 제언을 제시하였다.

• 치위생과학회지
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• 제15권6호
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• pp.786-793
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• 2015

본 연구는 재직 중인 기혼 여성 치과위생사 281명을 대상으로 기혼 여성 치과위생사의 경력단절 의사에 영향을 미치는 요인에 대해 알아보고자 수행되었다. 설문지를 이용하여 2015년 6월 27일부터 7월 26일까지 자료를 수집하였고, 다음과 같은 연구 결과를 얻었다. 연구 대상자의 66.9%가 치과위생사의 수명은 '짧다'라고 응답하였고, 짧은 이유로 '경력이 많으면 취직이 어렵다', '나이에 제한이 있다' 등이 있었다. 연구 대상자의 42.7%가 치과위생사의 정년은 '40대까지'라고 응답하였고, 53.4%가 치과위생사의 재취업은 '조직 내 기혼자에 대한 부담감이 없다면 언제든 가능하다'라고 응답하였다. 일반적 특성 따른 경력단절 의사는 연령(p<0.001), 근무연수(p=0.003), 자녀수(p=0.008), 자녀연령(p=0.012), 월급여(p=0.004)가 유의하게 나타났고, 직업인식에 따른 경력단절 의사는 이직경험(p=0.015), 직업수명(p<0.001), 치과위생사의 정년(p<0.001), 취업지속 시기(p<0.001), 치과위생사의 재취업(p<0.001)에서 유의하게 나타났다. 상관분석 결과는 p<0.01수준에서 직업정체성, 고용주의 지지, 배우자의 지지, 직무만족도가 높을수록 경력단절 의사는 낮은 것으로 나타났고, p<0.05 수준에서 가족지지가 높을수록 경력단절 의사는 낮은 것으로 나타났다. 경력단절 의사에 영향을 주는 요인을 위계적 방법으로 분석한 결과 모델 4에서 설명력이 37.1%로 가장 설명력이 좋은 것으로 나타났다. 연령, 근무연수, 직업수명, 가족지지, 직업정체성, 고용주의 지지가 유의한 차이(p<0.05)를 보였고, 고용주의 지지(${\beta}$=-0.499)가 경력단절 의사에 가장 큰 영향을 주는 것으로 나타났다. 조직 내 고용주와 직원들은 기혼자에 대한 편견을 버리고, 직장 내에서의 출산휴가, 육아휴직에 대한 배려와 치과계에서의 제도적 방안을 마련함과 더불어 시간제 근로방법을 이용한다면 구인난 해결에 도움이 될 것이다. 신규 인력의 증가보다 기혼 치과위생사들이 취업을 지속함으로써 구인난을 해결할 수 있는 방안을 고려해야 할 것이다.

• 유통과학연구
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• 제11권1호
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• pp.35-44
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• 2013

Purpose - This study aims to (a) analyze local citizens' perception of a local company, the Gwangyang Steel and Iron Company (GSIC); (b) compare the perception toward the local company with that of national citizens' perceptions towards many other unspecified companies, which were surveyed biannually by The Korea Chamber of Commerce and Industry (KCCI); and (c) analyze how such companies evaluate perceptions towards them, in relation to citizens' socioeconomic position, such as their education status. Research design, data, methodology - The data were collected using a questionnaire, which was given to a sample of local citizens in cities. To test the hypotheses, factor analyses, a t-test, and an ANOVA were conducted. The total number of respondents was 1798. The data gathered from the respondents of the sample were analyzed using SPSS Win 19.0 software. Perception towards the company was evaluated on the corporate favorite index (CFI). The CFI index shows how positive citizens feel towards a company. It is calculated using five leading factors, consisting of the following: contribution to the economy, productivity, international competitiveness, social contribution, and ethical management. The higher the level of positive feelings exhibited, the closer the index will come to 100. Results - As a result of the analysis, the CFI index towards the GSIC stood at 67.3. The CFI index towards the company is 16.5 points higher than that of the index towards the many other unspecified companies, which were surveyed by the bi-annual KCCI study in the first half of 2011. The other five indexes stood as follows: contribution to the economy, productivity, social contribution, and ethical management was 69.2, 71.2, 64.6, and 58.6, respectively. These indexes are 18.3, 4.6, 27.6, and 35.6, respectively, higher than those found by the KCCI study. However, international competitiveness is 73.0 (9.8 points lower than that of the KCCI study). This survey thus shows that the CFI of the local citizens towards the global company GSIC is very high when compared with the CFI index towards the many other unspecified companies that was determined by the KCCI survey. Conclusions - This survey shows that local citizens have high expectations of economic activity, increasing working opportunities, and regional cooperation projects from the local company, GSIC. In addition, the CFI index towards GSIC evaluates results depending on the respondent's relationship with the company, and their educational status. Respondents, whose family or relatives were working as employees of GSIC, have relatively positive perceptions of GSIC, and respondents with a relatively higher educational status also share positive perceptions. Local citizens expect the profit-making of the company to operate in accordance with management activities, and at the same time, they expect that the wealth generated by the company will return to wider society.

• 산경연구논집
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• 제10권7호
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• pp.39-48
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• 2019

Purpose - The purpose of this study was to explore the impact of chatbots' innovation attributes on the innovation acceptance for consumers who have used chatbots to purchase fashion products that account for a large share of transactions in mobile shopping. Research design, data, and methodology - Data were collected from Korean consumers aged 20 to 49 who had experience using chatbots when purchasing fashion-related products via mobile circumstances. After a pilot survey of 31 customers, pre-questionnaire was revised for the final test, and the final questionnaire was distributed to 1,500 subjects. Out of these, 244 were retrieved. After excluding 48 inappropriate responses, 196 were used for statistical analysis. Frequency analysis, exploratory factor analysis, one-way ANOVA, regression analysis and independent t-test using SPSS 23.0 were employed for data analyses. Results - First, four factors of chatbots' attributes were extracted: relative advantages and compatibility, complexity, sensibility, and diversity. Second, two factors were extracted for fashion leadership: fashion opinion leadership and fashion innovativeness. Two groups based on the fashion leadership were identified: active innovation adopters and passive innovation adopters. Third, relative advantages and compatibility, diversity, sensibility of innovation attributes were found to have effects on the innovation acceptance in order. Fourth, significant differences were found in sensibility of innovation attributes and innovation acceptance in groups by marital status and age. The married in their 30s and 40s perceived sensibility as a more important attribute of chatbots than the unmarried in their twenties. Among the groups of different income levels, meaningful differences were found in diversity of innovation attributes and innovation acceptance. Fifth, there were significant differences found in relative advantages and compatibility, sensibility of innovation attributes, and acceptance of Innovation among the groups by fashion leadership. Active innovation adopters were found to be more aware of the importance of relative advantages and compatibility, and sensibility of innovation attributes, and innovation acceptance. Conclusions - The present study provides chatbots' marketing strategies for fashion items need to be modified by demographic characteristics and fashion leadership. Particularly, fashion leadership was found to be an important factor in determining the perception of innovation attribute as well as innovation acceptance.

• 기본간호학회지
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• 제5권1호
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• pp.107-124
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• 1998

Based on King's goal attainment theory, this research deals with applying nursing intervention of mutual goal settings to gastrectomy patients. It tests the effects of nursing intervention, according to the patients' health locus of control, suggested as external boundary criteria for the theory by employing a quasi-experimental design which consists of a pretest-posttest non-equivalent control and experimental groups. The subjects of this research were 62 gastrectomy patients hospitalized at Y medical center and the experimental and control groups consisted of 31 subjects. The experimental group received nursing intervention at the mutual goal setting of 5 times from the day before the surgery to the 5th day after the surgery, while the control group received only routine nursing care. Recovery indicators of both groups were measured and compared. Measurement variables included patients' characteristics, health locus of control, forced vital capacity, forced expiratory volume in one second, peak expiratory flow, bowel movement recovery, mobility recovery, level of pain, patients' stress and patients' satisfaction. Data were analyzed using SPSS statistical package and the hypotheses were tested by ANOVA and ANCOVA. Results of the analyses are summarized as follows : 1) Internal health locus of control had higher effects of the nursing intervention of mutual goal setting than external health locus of control on pulmonary ventilatory functions of forced vital capacity, forced expiratory volume in one second, and peak expiratory flow. 2) There was no statistically significant difference in the effects of nursing intervention of mutual goal setting on the bowel movement recovery between the internal and external health locus of control. 3) There was no statistically significant difference in the effects of nursing intervention of mutual goal setting on the mobility recovery between the internal and external health locus of control. 4) There was no statistically significant difference in the effects of nursing intervention of mutual goal setting on the level of pain between the internal and external health locus of control. 5) There was no statistically significant difference in the effects of nursing intervention of mutual goal setting on the level of stress between the internal and external health locus of control. 6) There was a statistically significant difference in the effects of nursing intervention of mutual goal setting on the level of satisfaction with provision of nursing information between the internal and external health locus of control, and there was no statistically significant difference in the effects of nursing intervention of mutual goal setting on the level of satisfaction with outcome of nursing between the internal and external locus of control. On the basis of the research results, the following are recommended : 1) Repeated research on responses to health locus of control is necessary. 2) Not only the effectiveness of nursing intervention in acute recovery periods, but also the long term effects are to be investigated. 3) The development of instruments is needed to accurately measure mutual goal setting regarding postoperative deep breath, coughing, early ambulation, etc. so that the relationship among the postoperative recovery indicators may be explored. 4) It is required that an instrument be developed to measure perception which facilitates goal attainment in the interactive setting between patients and nurses.

• 대한치과보철학회지
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• 제43권2호
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• pp.264-279
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• 2005

Statement of problem. Intraoral corrosion not only affects the esthetic and function of metallic dental restoration, but also has biologic consequences as well. Therefore, corrosion is considered a primary factor when choosing the dental alloy and laboratory technique. Purpose. The objective of this study was to compare the effects of solder and laser weld on corrosion Material and methods. Test specimens were made of 2 types of gold alloys, Co-Cr and Ni-Cr alloy and fabricated 3 methods, respectively: as cast, solder, and laser weld. For the analysis of corroding properties, potentiodynamic polarization test and immersion test conducted. The potentiodynamic polarization scan curve were recorded in 0.9% NaCl solution(pH 7) using Potentiostat/Galyanostat Model 273A. All specimens were exposed to 0.9% NaCl solution(pH 2.3) during 14 days. Elemental release into corrosive solution was measured by atomic emission spectrometry Differences in corrosion potential and mass release were determined using ANOVA. Results and conclusion. Through analyses of the data, following results were obtained. 1. In Pontor MPF and Wiron 99, corrosion potential of the solder group was statistically lower than as cast and laser weld group (p<0.05) , but there was no difference between corrosion potential of solder group and laser weld group in Pontor MPF and no differences between as cast and laser weld group (p>0.05). In Jel-Bios 10 and Wirobond, there was no difference of corrosion potential according to joining methods(p>0.05). 2. In all tested alloys, the amount of released metallic ion was greatest in the solder group(p<0.05). There was no difference between as cast group and laser weld group in Jel-Bios 10 and Wirobond(p>0.05). 3. In scanning electron microscopic examination. except soldered Wiron 99 specimens, it is impossible to discriminate the corrosive property of solder and laser weld. 4. Under the this experimental circumstances, laser weld appears superior to the solder when corrosion is considered.

• 대한치과의사협회지
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• 제53권1호
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• pp.36-46
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• 2015

Objectives: The objective of this work was to investigate the hospital nursing care of oral and maxillofacial health in jeju province. Methods: 438 Registered nurses(RN) who were working at each of secondary hospitals in Jeju province had responded to the questionnaire. The data were analyzed via frequency analyses and one-way ANOVA to assess the state of RN on hospital nursing care of oral and maxillofacial health. Results: The class of education on density in formal density that marked '0 hour' and '1-3 hours' were 73.5% and 19.9%, respectively. The class of refresher training on density that marked '0 hours' and '1-3 hours' were 92.9% and 6.6%, aggregately 99.5%. The nursing education on appearance after tumor of maxillofacial area that marked 'formal education' and 'none' were 45.2% and 52.1%, respectively. The score of question 'function, effect and side effect of hexamedin gaggle' was $2.68{\pm}0.95$ by Likert 5-point scale. Likewise, the scores were $2.82{\pm}0.88$ on question 'management of removal denture', $2.83{\pm}0.95$ on question 'preventive dental treatment before anticancer therapy', $2.88{\pm}0.86$ on question 'function of saliva', $2.96{\pm}0.99$ on question 'oral management of tube feeding patient', $3.13{\pm}1.00$ on question 'bacterial endocarditis from oral microflora', $3.36{\pm}0.89$ on question 'dysphagia' and $3.62{\pm}1.03$ on question 'aspiration pneumonia'. RN replied that 'lack of knowledge' and 'delay of cooperation' formed 53.7% and 33.3% respectively, on question 'problem in dental consultation other diseased patient'. Conclusions: From this study, it is necessary for RN and student of nursing science to be educated on the oral and maxillofacial nursing. Authors suggest further co-study and nation-wide research.