• 아동학회지
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• 제37권5호
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• pp.129-144
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• 2016

Objective: This study's purpose was to develop a teaching competency scale for character education for early childhood teachers and to examine its reliability. Methods: The study procedure was as follows: First, scale items were generated by reviewing the literature as a deductive approach and focused interviews with 8 field experts in an inductive approach. Second, face validation was assessed by 7 academic experts, and statistical validation processes were done twice. The data used in the final statistical analyses included 206 questionnaires for early childhood teachers. Statistical validation included item response analysis, item discrimination analysis, exploratory factor analysis, confirmatory factor analysis, and reliability analysis. Results: The 3 factors identified were as follows: Communicate teaching competence, practical teaching competence, and instrumental teaching competence. The validity and reliability of the Teaching Competency Scale for Character Education in Early Childhood Teachers were acceptable. Conclusion: This new scale will be a useful tool to better support character education for early childhood teachers and contribute to providing a basis for developing more sophisticated tools.

• Journal of Chest Surgery
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• 제23권1호
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• pp.115-121
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• 1990

We have experienced twenty-eight patients of esophageal perforation at the department of thoracic and cardiovascular surgery, Seoul National University Hospital during the period from Jan. 1957 to Jun. 1989. The ratio between male and female patients was 17:11, and their age ranged from 2 years to 61 years old. [average: 30.4 years old] The cause of esophageal perforation were instrumental trauma in 9 cases, caustic perforation in 6 cases, spontaneous perforation in 6 cases, surgical trauma in 2 cases, and others in 5 cases. The most frequent location of perforation was in the lower third portion of the esophagus [13 case, 46 %]. Patients complained of chest pain [86 %], dyspnea [57 %], fever [57 %], subcutaneous emphysema [43 %], and others. The frequent complications of esophageal perforation were empyema [13 cases, 46 %] and mediastinitis [11 cases, 39 %]. The first treatment was supportive care in 3 cases, primary closure and reinforced procedures in 13 cases with 3 deaths, open drainage in 5 cases with 2 deaths, diversion in 4 cases with 2 deaths and closed thoracostomy drainage in 3 cases. After the first treatment, 6 patients received multi-staged operations for several months. Overall mortality was 25 %, and the most frequent cause of death was sepsis[57 %]. We thought that factors affecting the outcome of esophageal perforation are;[1] early diagnosis and adequacy in the first treatment, [2] intensive perioperative management including multi-stage surgical approach, [3] patient`s condition at the diagnosis

• 지식경영연구
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• 제19권3호
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• pp.173-187
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• 2018

This study was aimed at suggesting an integrative framework for creating collective intelligence and enhancing group performance after reviewing previous studies including those related to learning organizations, organizational learning, knowledge management, and collective intelligence. In the first, we examined that the similarities and differences between collective intelligence and other similar concepts, such as learning organizations, organizational learning, and knowledge management. Next, an integrative framework for creating collective intelligence and channeling it into strong group performance were suggested. In this process, we reviewed conditions for creating collective intelligence and segmented the major variables as expectancy, valence, and instrumentality, according to Vroom's (1964) expectancy theory. Characteristics of problems and the roles of leaders were respectively considered as valence for inducing collaboration and expectancy for managing probability to achieve goals. Instrumental factors were also adopted from conditions for creating group intelligence suggested from several researchers, such as creativity, openness, willingness for working together, horizontal communication, centralization in decision making, and building effective information and communication technology system and active usage of it. We discussed two potentially disputable matters about the scope and level of collective intelligence and group performance and suggest several theoretical and practical implications in the Discussion.

• 한국대기환경학회지
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• 제18권5호
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• pp.363-372
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• 2002

PM$_{10}$ aerosols were collected using low volume air sampler every month intervals from September 1992 to August 1991 in Seoul. These samples were analyzed for 20 trace elements (Al, As, Ba, Br, Ca, Cl, Co, Cr, Fe, K, Mn, Na, Ni, Pb, Sc, Se, Si, Ti, V and Zn) by INAA (instrumental neutron activation analysis), XRF (x-ray fuorescence spectrometer), and ICP (inductively coupled plasma). PM$_{10}$ mass concentrations higher than 70 $\mu$g/m$^3$ were 32% of 60 samples and had significantly higher concentrations in spring and winter than in summer and fall (p-value<0.001). The elements of As, Br, Cl, Ni, Pb, Se, V, and Zn are enriched by factors of 20 to 2,000 relative to their natural abundance in crustal soil. To further identify common sources of pollution-related trace elements, factor analysis was applied to the trace elements concentration data. Major sources that contribute to the atmospheric loading of these elements were found to include fossil fuel combustion, automobile and waste incineration (33.2%), metal processing industry (18.2%), and soil(29.8%).8%).

• 노동경제논집
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• 제32권2호
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• pp.1-25
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• 2009

본 연구는 2006년도 고령화연구패널 자료를 이용하여 자녀 수가 자녀의 교육성과에 미치는 영향을 실증분석한다. OLS 추정 결과, 자녀 수가 증가함에 따라 자녀의 질, 즉 교육수준이 낮아진 것으로 나타났다. 이러한 실증 결과는 자녀의 수와 질의 대체관계 모형에 부합한다. 그러나 자녀 수의 내생성을 통제하기 위해 첫째 자녀의 성별을 도구변수로 이용한 추정 결과에서는 자녀 수의 증가가 자녀의 교육수준에 통계적으로 유의한 영향을 미치지 않는 것으로 나타났다. 이러한 결과는 자녀 1인당 교육투자액의 감소에 따른 교육수준의 저하가 자녀 수 증가로 인한 다른 효과에 의해 상쇄될 수 있음을 보여준다.

• 한국지진공학회논문집
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• 제2권3호
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• pp.83-86
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• 1998

The results from the Individual Plant Examination of External Event of Yonggwyang nuclear power plants, unit 3 & 4, in Korea have shown that the high degree of diversities of the experts' opinions on seismicity and attenuation models is su, pp.sed to be generic cause of uncertainty of APEs(annual exceedance probability) in the PAHA(probabilistic seismic hazard analysis). This study investigated the sensitivity of the focal depth, which is one of the most uncertain seismicity parameters in Korea, Significant differences in resultant values of annual exceedance probabilities and much more symmetrical shape of the resultant PDFs(probability density functions), in case of consideration of focal depth, are found. These two results suggest that, even for the same seismic input data set including the seismicity models and ground motion attenuation models, to consider focal depth additionally for probabilistic seismic hazard analysis evaluation makes significant influence on the distributions of uncertainties and probabilities of exceedance per year for the whole ranges of seismic hazard levels. These facts suggest that it is necessary to derive focal depth parameter more effectively from the historical and instrumental documents on earthquake phenomena in Koran Peninsula for the future study of PSHA.

• 지역사회간호학회지
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• 제29권3호
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• pp.310-321
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• 2018

Purpose: The purpose of this study is to identify the effects of the elderly's health statuses, health behavior, and social relations on their health-related quality of life (HRQoL) according to their family types. Methods: The subjects of this study were 1000 elderly persons (298 living alone, 420 living with their spouses, and 282 living with their family)living in C city in Gangwon Province. Data were collected through structured questionnaires from July 20 to September 30, 2015. The SPSS/WIN program was used for data analysis. Results: The HRQoL of the elderly living alone was much lower than the other groups. The most influential factors on the HRQoL include self-rated health and depressive symptoms in all three groups. Social activities and skipping meals were associated with the HRQoL of the elderly living alone and living with their spouses, while marital status, number of chronic disease, and instrumental activities of daily living were associated with the HRQoL of the elderly living with their family. Conclusion: Nurses should take into account family types when designing interventions for improving the HRQoL of the elderly.

• Journal of Ecology and Environment
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• 제29권2호
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• pp.175-183
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• 2006

The discovery of deep-sea hydrothermal vents and their ecosystems is a monumental landmark in the history of Ocean Sciences. Deep-sea hydrothermal vents are scattered along the global mid-ocean ridges and back-arc basins. Under sea volcanic phenomena related to underlying magma activities along mid-ocean ridges generate extreme habitats for highly specialized communities of animals. Multidisciplinary research efforts during past three decades since the first discovery of hydrothermal vents along the Galapagos Rift in 1977 revealed fundamental components of physiology, ecology, and evolution of specialized vent communities of micro and macro fauna. Heterogeneous regional geological settings and tectonic plate history have been considered as important geophysical and evolutionary factors for current patterns of taxonomic composition and distribution of vent faunas among venting sites in the World Ocean basins. It was found that these communities are based on primary production of chemosynthetic bacteria which directly utilize reduced compounds, mostly $H_2S$ and $CH_4$, mixed in vent fluids. Symbioses between these bacteria and their hosts, vent invertebrates, are foundation of the vent ecosystem. Gene flow and population genetic studies in parallel with larval biology began to unveil hidden dispersal barrier under deep sea as well as various dispersal characteristics cross taxa. Comparative molecular phylogenetics of vent animals revealed that vent faunas are closely related to those of cold-water seeps in general. In perspective additional interesting discoveries are anticipated particularly with further refined and expanded studies aided by new instrumental technologies.

• 중환자간호학회지
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• 제9권1호
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• pp.1-14
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• 2016

Purpose: To investigate the post-intensive care syndrome (PICS) and to analyze the factors affecting the quality of life (QoL) of survivors of critical illness. Methods: Subjects were 114 outpatients who had been discharged from intensive care units of a university hospital in B city, Korea. From July 30 through September 30, 2015, PICS was assessed using the Korean Montreal Cognitive Assessment, Hospital Anxiety-Depression Scale, Korean Instrumental/Activities of Daily Living (K-I/ADL) index, and handwriting transformation, while physical and mental health-related QoL was measured using the SF-12. Results: Of the subjects, 39.5% were screened for mild cognitive disorder and 23.7% experienced handwriting transformation after discharge. Multiple regression analysis revealed that restraint application, current job, time of ${\geq}36$ months after discharge, depression, anxiety, and handwriting transformation accounted for 40.9% of the physical health-related QoL, and depression, anxiety and experience of delirium accounted for 62.4% of the mental health-related QoL. Conclusions: It is necessary to make efforts to reduce restraint application in intensive care units and prevent the occurrence of delirium, with the objective of reducing PICS and improving the QoL of critical illness survivors.

• 근관절건강학회지
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• 제27권2호
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• pp.153-159
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• 2020

Purpose: This study aims to identify the effect of university students' intention to donate hematopoietic stem cells based on the theory of planned behavior. Methods: The subjects include university students who visited the campaign for the registration of hematopoietic stem cell donation held at H university on September 28, 2019 and October 2, 2019. Results: The intention to register for hematopoietic stem cell donation and empirical attitude (r=.72, p<.001), instrumental attitude (r=.64, p<.001), directive norm (r=.53, p<.001), technical norms (r=.55, p<.001) and self-efficacy (r=.86, p<.001) showed a significant positive correlation. The multiple regression analysis revealed that self-efficacy (β=.66) and empirical attitude (β=.23) were the most influential factors. Conclusion: Educational and promotional programs to increase the intention to register for hematopoietic stem cell donation need to be developed to help increase students' self-efficacy and help them develop a positive experiential attitude. In addition, further research is needed to determine whether the intention to register in hematopoietic stem cell donation among university students can lead to actual registration and donation after registration.