• 보건교육건강증진학회지
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• 제30권3호
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• pp.59-73
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• 2013

Objectives: The study is aimed at examining the individual reasons and regional/environmental factors of online search on suicide using social big data to predict practical behaviors related to suicide and to develop an online suicide prevention system on the governmental level. Methods: The study was conducted using suicide-related social big data collected from online news sites, blogs, caf$\acute{e}$s, social network services and message boards between January 1 and December 31, 2011 (321,506 buzzes from users assumed as adults and 67,742 buzzes from those assumed as teenagers). Technical analysis and development of the suicide search prediction model were done using SPSS 20.0, and the structural model, nd multi-group analysis was made using AMOS 20.0. Also, HLM 7.0 was applied for the multilevel model analysis of the determinants of search on suicide by teenagers. Results: A summary of the results of multivariate analysis is as follows. First, search on suicide by adults appeared to increase on days when there were higher number of suicide incidents, higher number of search on drinking, higher divorce rate, lower birth rate and higher average humidity. Second, search on suicide by teenagers rose on days when there were higher number of teenage suicide incidents, higher number of search on stress or drinking and less fine dust particles. Third, the comparison of the results of the structural equation model analysis of search on suicide by adults and teenagers showed that teenagers were more likely to proceed from search on stress to search on sports, drinking and suicide, while adults significantly tended to move from search on drinking to search on suicide. Fourth, the result of the multilevel model analysis of determinants of search on suicide by teenagers showed that monthly teenagers suicide rate and average humidity had positive effect on the amount of search on suicide. Conclusions: The study shows that both adults and teenagers are influenced by various reasons to experience stress and search on suicide on the Internet. Therefore, we need to develop diverse school-level programs that can help relieve teenagers of stress and workplace-level programs to get rid of the work-related stress of adults.

• 환경영향평가
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• 제25권2호
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• pp.124-140
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• 2016

본 연구는 한국노동패널(Korea Labor and Income Panel Study, KLIPS) 제1차~제15차년도 자료와 환경부에서 제공하는 수질자료를 이용하여, 개인의 전반적인 생활만족도(life satisfaction)가 수질오염으로 대표되는 환경오염에 의해 어떻게 영향을 받는가를 실증적으로 분석한 것이다. 서수적 순서를 가진 종속변수의 특성과 패널자료의 이질성을 감안하여 패널 확률효과 순서형 프로빗(panel random-effects ordered probit) 모형으로 추정하였다. 수질오염도를 반영하는 지표로는 생물화학적 산소요구량(biochemical oxygen demand, BOD), 총인(total phosphorus, TP) 농도를 사용하였다. 또한 기존의 연구에서와 같이 개인의 경제적 특성, 사회 인구학적 특성을 동시에 고려하였다. 분석 결과 BOD, TP 모두 개인의 생활만족도에 부정적인 영향을 미치는 것으로 나타났다. 그 외 다른 변수들은 선행연구에서 나타난 결과와 유사하다. 자신의 소득 증가, 연령, 기혼, 자가주택 보유, 건강, 여성, 높은 교육수준은 생활만족도에 긍정적인 영향을 미치며, 타인의 소득 증가, 실업자, 도시거주, 자영업자인 경우는 부정적인 영향을 미치는 것으로 나타났다.

• 한국컴퓨터정보학회논문지
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• 제28권2호
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• pp.161-170
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• 2023

본 연구는 고용주의 장애인 고용에 대한 인식과 고용만족도 간의 관계와 이들 간의 관계에서 장애인 고용기업기여도 인식의 매개효과와 교육훈련지원 유무의 조절효과를 검증하는데 있다. 본 연구 목적을 위하여 한국장애인고용공단에서 실시한 「2021년도 장애인고용실태조사」 자료 가운데 4,332업체를 대상으로 재구성하였다. 자료분석은 SPSS 23.0과 AMOS 23.0을 이용하였으며, 변수 간의 관계를 파악하기 위해 구조방정식모형 분석을 수행하였다. 연구결과 고용주의 장애인고용인식과 고용만족도 간에 유의미한 영향관계가 있으며 고용 기업기여도의 부분매개효과를 확인할 수 있었다. 또한 교육훈련지원 유무에 따른 부분적 조절효과가 있는 것으로 나타났다. 본 연구 결과를 통해 장애인고용률을 높이기 위해 환경조성에 영향을 줄 수 있는 요인을 다각도로 고찰하였다는 데에 의의가 있으며, 이런 결과를 바탕으로 장애인고용률을 높이기 위한 시사점을 제시하였다.

• 영재교육연구
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• 제15권1호
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• pp.11-36
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• 2005

과학영재학교의 교육과정 운영과 교과지도 방법에 협력교수가 중요한 개념으로 등장하게 되었다. 본 연구에서는 협력교수의 관점에서 과학영재학교의 교육과정 운영을 살펴보고, 사회과의 교수-학습과정에 적용할 수 있는 협력교수 방안과 실현 가능성을 탐색하였다. 이에 본 연구에서 살펴본 것과 그 결과는 다음과 같다. 첫째, 협력교수의 개념을 정리하고 여러 교육현장에서 이 개념에 근거한 방법적 적용들이 어떠한가를 살펴보았다. 둘째, 협력교수의 관점에서 현재 과학영재학교에서 이루어지고 있는 전 교과의 교수-학습을 살펴보았다. 셋째, 현재의 교육과정과 주어진 여러 물리적.인적 여건을 고려하여 사회과의 협력교수 방안을 탐색하였다. 넷째, 협력교수의 한 방안으로 제시된 '세미나 수업'의 일부분을 시행하였다. 세미나의 대주제는 시사성이 있는 통합적 주제로 '중국의 고구려사 왜곡 문제'였으며, 지리, 역사, 일반사회, 윤리 및 사상을 담당하는 교사와 희망한 학생들이 영역별 소주제를 중심으로 연구와 협력학습이 진행되었다. 다섯째, 세미나 준비와 발표등의 과정에서 교사-교사, 학생-학생, 교사-학생의 상호작용이 활발하게 있었고, 특히 교사들 간의 상호작용은 협력교수로 발전할 수 있는 가능성을 찾게 되었다. 마지막으로, 학생들은 사회과 학습에 적극적으로 참여하려는 공감대를 형성할 수 있었고, 사회현상에 대해 연구하는 방법을 익히고 동시에 사회현상을 다각적인 관점에서 접근할 수 있는 안목을 넓히게 되었다.

• 산경연구논집
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• 제5권2호
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• pp.5-12
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• 2014

Purpose - The purpose of this thesis is to assess the product design digital learning status of universities that are currently involved in learning environment projects in manufacture and commerce integration (MCI). Thus, enterprises must keep learning and creating new inventions with revolutionary progress. Research design, data, and methodology - This study not only emphasizes the analysis of technical ability, course concepts, conducting models, and learning environments of every aspect, but also systematically probes the planning of learning, system framework, web learning, environmental activities, data statistics, and digitalized learning, among other aspects. Results - The results of this study help in finally understanding each school's manufacture and commerce integration situation, in order to evaluate product design learning. Consequently, it is essential to evaluate computer learning at schools, thereby affecting communication and the requirements of business education training. Conclusions - It is essential to focus on MCI to promote web teaching to preserve and enhance knowledge disseminating technologies, and immediately share knowledge with learners, while improving work efficiency and cultivating the talent needed by industry.

• Computers and Concrete
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• 제20권4호
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• pp.429-437
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• 2017

In this study, the effect of the tensile strength and ratio of disc spacing to penetration depth on the efficiency of tunnel boring machine (TBM) is investigated using Particle flow code (PFC) in two dimensions. Models with dimensions of $150{\times}70mm$ made of rocks with four different tensile strength values of 5 MPa, 10 MPa, 15 MPa and 20 MPa were separately analyzed and two "U" shape cutters with width of 10 mm were penetrated into the rock model by velocity rate of 0.1 mm/s. The spacing between cutters was also varied in this study. Failure patterns for 5 different penetration depths of 3 mm, 4 mm, 5 mm, 6 mm, and 7 mm were registered. Totally 100 indentation test were performed to study the optimal tool-rock interaction. An equation relating mechanical rock properties with geometric characteristics for the optimal TBM performance is proposed. The results of numerical simulations show that the effective rock-cutting condition corresponding to the minimum specific energy can be estimated by an optimized disc spacing to penetration depth, which, in fact, is found to be proportional to the rock's tensile strength.

• 임상간호연구
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• 제29권3호
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• pp.261-270
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• 2023

Purpose: This study aimed to identify the influence of knowledge of personal information protection law and nursing patient advocacy on practice of personal information protection among nurses. Methods: The subjects were 130 nurses who have worked for six months or more in the ward of the tertiary or general hospitals. Data were collected from February 20 to March 3, 2023. Results: Factors influencing practice of personal information protection were acting as an advocate (β=.32, p=.004), environmental and educational influences (β=.21, p=.040), knowledge of personal information protection law (β=.19, p=.013) and clinical experience for five years or more but less than ten years (β=.17, p=.036). The regression model showed an explanatory power of 34.0%. Conclusion: Acting as an advocate has the most effect on practice of personal information protection. To promote practice of personal information protection for nurses, it is necessary to provide education related to privacy protection and encourage nursing patient advocacy.

• 한국가정과교육학회지
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• 제32권2호
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• pp.43-58
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• 2020

본 연구는 대구지역에 거주하는 중학생 476명을 대상으로 식품구매태도 및 식품구매태도에 영향을 미치는 환경 요인에 대하여 조사·분석하여 청소년들의 올바른 식품구매 능력을 향상시키는 방안을 마련하고 식생활교육 프로그램 개발에 기초자료를 제공하고자 실시하였다. 청소년들의 식품구매태도 및 식품구매태도에 영향을 미치는 환경 요인에 대한 연구 결과를 요약하면 다음과 같다. 첫째, 청소년들은 식품을 구입할 때 경제성(3.81±0.64), 맛(3.70±0.72), 안전성(3.52±0.78), 건강(2.93±0.92)의 순서로 중요하게 생각하는 것으로 나타났다. 둘째, 여학생(3.85±0.62)이 남학생(3.72±0.68)보다 경제성을 유의적으로 더 고려하는 것으로 나타났고(p<.05), 학년에 따라 기호(p<.01)와 안전성(p<.01)을 고려하는 정도에 차이가 있었으며, 용돈액수에 따라 경제성에 대한 태도에 유의적인 차이가 드러났다(p<.05). 셋째, 식품을 구매할 때 청소년들은 부모의 영향(3.44±0.62)을 가장 많이 받고 있었으며 친구의 영향(2.43±0.60)은 적은 것으로 나타났다. 성별에 따라 부모(p<.05)와 상표(p<.05), 학년에 따라 친구(p<.01)와 부모(p<.05)의 영향에 차이가 있었으며, 용돈 액수에 따라서 친구(p<.01)의 영향에 차이가 있는 것으로 나타났다. 넷째, 식품구매 태도와 부모(r=.424), 광고(r=0.194), 상표(r=0.184)는 상관관계가 있는 것으로 나타났다(p<.001). 각 환경요인들이 청소년의 식품구매태도에 미치는 영향에 대한 회귀분석을 실시한 결과, 부모(β=.390, p<.001)와 광고(β=.102, p<.05)는 긍정적, 친구(β=-.122, p<.05)는 부정적인 영향을 미치는 것으로 나타났고, 상표는 영향력이 없었다. 결론적으로 대구지역 청소년들은 식품을 구매할 때 가격과 맛을 우선적으로 고려하고 부모의 영향을 많이 받는 것으로 나타났다. 따라서 청소년들이 올바른 식품구매태도를 형성할 수 있도록 소비자 역할모델이 되는 부모님들의 적극적인 역할과 지도가 요구되며, 교육현장에서도 청소년들을 대상으로 바람직한 식품선택 및 구매를 위한 식생활교육 프로그램을 개발하여 적절한 교육서비스를 제공해야 할 것이다.

• 한국학교보건학회지
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• 제22권1호
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• pp.49-59
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• 2009

Purpose: The aim of this study was to identify the factors related with the intention of smoking abstinence among elementary students in a metropolitan city in Korea. Methods: All the elementary schools in the city were stratified by region, and then schools as a primary sampling units (PSU) were selected by probability proportional to size (PPS) sampling. One class per grade was sampled randomly from 5th and 6th grade in the sampled schools from October to December in 2004. The students completed a standardized self-administered questionnaire anonymously. A total number of 1,712 respondents who did not smoke was included in the final analysis. The dependent variable was an intention of smoking in the future, and it was dichotomized into 'absolutely confident in smoking abstinence' and 'others'. The risk of non-absolute confidence in smoking abstinence was calculated with simple and multiple logistic regression, which were conducted with STATA 9.0 by a design-based analysis considering strata variable, PSU, and sampling weight. Results: In the final model of multiple logistic regression analysis, those who were more likely to have non-absolute confidence in smoking abstinence were male students (OR=2.66, p<0.001); barely attending religious services (OR=3.32, p=0.002) or having no religion (OR=1.95, p=0.027); exposure to environmental tobacco smoke outside home 1${\sim}$2 days per week (OR=1.60, p=0.013); having friends who smoked (OR=1.93, p=0.011); non-absolute confidence in refusing to smoke (OR=5.35, p<0.001); having relatively less negative attitude (OR=2.88, p<0.001), positive attitude (OR=2.35, p<0.001), and indifference (OR=4.05, p=0.034) toward peer smoking; not good relationship with mother (OR=1.52, p=0.016). Conclusion: The factors related with non-absolute confidence in smoking abstinence were coincided with those of smoking among children. The results of this study suggest the smoking prevention education should be applied to the children more actively, especially who are not confident in smoking abstinence in the future.

• Geomechanics and Engineering
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• 제28권6호
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• pp.599-611
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• 2022

Tendon reinforced cemented soil is applied extensively in foundation stabilisation and improvement, especially in areas with soft clay. To solve the deterioration problem led by steel corrosion, the glass fiber-reinforced polymer (GFRP) tendon is introduced to substitute the traditional steel tendon. The interface bond strength between the cemented soil matrix and GFRP tendon demonstrates the outstanding mechanical property of this composite. However, the lack of research between the influence factors and bond strength hinders the application. To evaluate these factors, back propagation neural network (BPNN) is applied to predict the relationship between them and bond strength. Since adjusting BPNN parameters is time-consuming and laborious, the particle swarm optimisation (PSO) algorithm is proposed. This study evaluated the influence of water content, cement content, curing time, and slip distance on the bond performance of GFRP tendon-reinforced cemented soils (GTRCS). The results showed that the ultimate and residual bond strengths were both in positive proportion to cement content and negative to water content. The sample cured for 28 days with 30% water content and 50% cement content had the largest ultimate strength (3879.40 kPa). The PSO-BPNN model was tuned with 3 neurons in the input layer, 10 in the hidden layer, and 1 in the output layer. It showed outstanding performance on a large database comprising 405 testing results. Its higher correlation coefficient (0.908) and lower root-mean-square error (239.11 kPa) were obtained compared to multiple linear regression (MLR) and logistic regression (LR). In addition, a sensitivity analysis was applied to acquire the ranking of the input variables. The results illustrated that the cement content performed the strongest influence on bond strength, followed by the water content and slip displacement.