• 한국간호교육학회지
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• 제28권3호
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• pp.248-258
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• 2022

Purpose: This study aimed to identify the mediating effect of professional self-concept on the relationship between nurse's image and career identity, and between satisfaction with the nursing major and the career identity of nursing students. Methods: This study utilized a descriptive methodology, and 205 nursing students attending three universities in Busan Metropolitan City participated in it. Data were collected from self-reported questionnaires between March 26 and April 30, 2022. Data were analyzed with descriptive statistics, an independent t-test, analysis of variance, Pearson's correlation coefficient, and simple and multiple regression using the IBM SPSS 22.0 program and Sobel test. Results: The mean score of career identity was 2.92±0.57 out of a possible 4. Career identity showed a significantly positive correlation with nurse's image (r=.32, p<.001), satisfaction with major (r=.47, p<.001), and professional self-concept (r=.32, p<.001). Additionally, professional self-concept had a partial mediating effect on the relationship between nurse's image (Z=2.44, p<.001), satisfaction with major (Z=2.35, p<.001), and career identity. Conclusion: The results of the study show professional self-concept had a mediating effect on the relationship between nurse's image, satisfaction with the nursing major, and career identity. Based on the study's results, career identity education programs for nursing students need to include nursing image, satisfaction with major, and professional self-concept.

• 한국간호교육학회지
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• 제28권3호
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• pp.328-339
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• 2022

Purpose: This study was conducted to identify the mental health status of Korean adults during the COVID-19 pandemic and to verify the predictors and mediating effects of avoidance coping on the relationship between the intolerance of uncertainty and anxiety and the intolerance of uncertainty and depression. Methods: An online survey was completed by 191 Korean adults from 19 to 64 years old. Using the IBM SPSS Win 19.0 program, the data were analyzed through the frequency, mean, t-test or analysis of variance, Pearson's correlation coefficient, linear regression analysis and Sobel test. Results: Of the survey respondents 21.5%, and 33.5% respectively were classified into anxiety and depression risk groups. The predictors of anxiety were intolerance of uncertainty (β=.52), avoidance coping (β=.21), and response efficacy (β=-.15). Those variables explained 47.7% of the respondents' anxiety. The predictors of depression were intolerance of uncertainty (β=.40), avoidance coping (β=.20), and response-efficacy (β=-.12). These variables explained 34.9% of the participants' depression. Among the predictors of anxiety and depression, avoidance coping was the significant mediating variable. Conclusion: The predictors of anxiety and depression during the COVID-19 pandemic were revealed to be intolerance of uncertainty, avoidance coping, and response-efficacy. These results indicate the necessity of providing the cognitive interventions and reducing the use of avoidance coping strategies on a personal level. Community-level efforts, including early detection and health communication strategies, should prioritize risk groups for example young adults. The study suggests it will be necessary to provide sufficient information, psychological support and economic policy alternatives related to the COVID-19 pandemic on the national level.

• 한국학교ㆍ지역보건교육학회지
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• 제23권4호
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• pp.41-48
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• 2022

Objectives: This study aims to investigate the mediating effect of social support on the relationship between the viewing of sensational videos of idol stars through the mass media and the sexual openness of adolescents. Methods: This study used the 'Study on countermeasures against sexual commodification of adolescents through mass media in the smart era' conducted by the 'Korea Youth Policy Institute' in 2014 for the entire country as the main data. Variables consisted of socio-demographic characteristics of study subjects, video viewing, social support, and sexual openness. For data analysis, SPSS ver 23.0 program was used. Results: As a result of comparing the averages, male students (20.40) had higher sexual openness than female students (18.67), and high school students (20.27) had higher sexual openness than middle school students (18.05) at school level. By grade level, sexual openness increased from the first year of middle school (17.47) to the third year of high school (20.82) (p<0.001). In order to verify the mediating effect of video viewing on the effect of adolescent social support on sexual openness, 3-step mediated regression analysis and Sobel test were conducted. As a result, video viewing had a significant effect on sexual openness through social support (p<0.001). Conclusion: Rather than obscuring the environment of mass media unconditionally, creating an atmosphere according to the tendency of realistic social support and reinforcing emotional education will help prevent the adverse effects of reckless sexualization of adolescents.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2009년도 추계학술발표대회
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• pp.395-396
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• 2009

Electron tomography를 이용한 3차원적 영상 시각화는 electron microscopy를 통해 하나의 실험 대상으로부터 연속된 이미지를 생산함으로써 이루어진다. 이미지 데이터 내부에는 대용량의 정보값을 포함하고 있어 3차원 구조물로의 변환이 가능하다. electron tomography 작업 과정 중 고해상도 원본 이미지에 pattern recognition 알고리즘이 적용된 필터링을 적용하면 실험에 필요한 데이터의 정보 손실을 최소화한 상태에서 electron tomography 시스템의 효율성을 높일 수 있다. 또한 tomographic econstruction이 진행되는 각 단계에 hanning windowing을 적용하면 불필요한 정보 값이나 노이즈 등을 효과적으로 제거할 수 있다. 윤곽선 데이터의 효과적 활용을 위하여 sobel 필터 처리를 할 경우 관찰하고자 하는 대상의 윤곽선 특징을 뚜렷하게 시각화 할 수 있었다. 본 연구를 통하여 데이터의 시각화 과정에서 실험의 신뢰성 확보를 위해 원본 이미지를 기반으로 하는 tomogram과 필터링을 적용한 tomogram을 비교하여 최종 결과물의 정확도를 높이고, electron tomography를 통한 결과물의 질적 향상을 유도할 수 있음을 확인하였다.

• 사회복지연구
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• 제44권2호
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• pp.359-385
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• 2013

본 연구의 목적은 노인의 인터넷활용(인터넷활용빈도 및 인터넷활용능력)이 생활만족도에 미치는 영향력을 검증하고, 이 관계에서 사회활동의 매개효과를 분석하는 것이다. 연구에서 활용한 자료는 서울시복지재단에서 실시한 서울시 복지패널조사자료 중 2010년도 가구원용 데이터이며, 1862명이 분석대상이다. 연구방법은 빈도분석, 기술분석, 상관관계분석을 통해 대상자의 일반적 특성 및 주요 변수의 특성을 살펴보았으며, 구조방정식으로 연구모형을 검증하고, Sobel test를 통해 사회활동의 매개효과를 분석하였다. 분석 결과 첫째, 노인의 인터넷활용빈도는 생활만족도에 영향요인이 아닌 것으로 나타났고 반대로 인터넷활용능력은 생활만족도에 영향을 주는 것으로 나타났다. 둘째, 노인의 인터넷활용능력과 생활만족도의 관계에서 사회활동은 부분매개효과를 가지는 것으로 나타났다. 이러한 연구결과를 바탕으로, 노인 인터넷활용 활성화에 대한 이론적·실천적 함의를 제시하였다.

• 한국정보시스템학회지:정보시스템연구
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• 제32권4호
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• pp.137-147
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• 2023

Purpose The domestic aquaculture industry in South Korea utilizes both formulated feeds and live feeds for the cultivation of fish. While nutrient-rich live feeds, particularly using fry, have been preferred since the past, formulated feeds are gaining attention due to issues related to overfishing and environmental concerns. Formulated feeds are advantageous for storage and supply but require a sustained feeding regimen due to the comparatively slower growth rate compared to live feeds. As the aging population in rural areas leads to a shortage of labor, automated feeding systems are increasingly being adopted in aquaculture facilities. To enhance the efficiency of such systems, it is crucial to quantitatively analyze the behavioral changes in fish based on the presence or absence of feed. Design/methodology/approach In the study, RGB cameras and infrared cameras were used to analyze fish activity according to feeding, and an outline extraction algorithm was applied to analyze the differences resulting from this. Findings Unlike RGB cameras, infrared cameras are more suitable for analyzing underwater fish activity as they convert objects' thermal energy into images. It was observed that Canny, Sobel, and Prewitt filters showed the most distinct identification of fish activity.

• 융합경영연구
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• 제12권1호
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• pp.77-88
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• 2024

Purpose: By studying the effects of SNS advertising characteristics and SNS advertising music characteristics conducted by companies on advertising preference and advertising effects, we would like to suggest a plan for effective SNS advertising operation. Research design, data and methodology: In this study, a total of 483 surveys were collected for college student consumers in their 20s who had experience seeing advertisements on SNS, and 458 were used for the final analysis. In addition, the collected questionnaire data were analyzed using statistical programs SPSS 24.0 and AMOS 24.0, and Sobel Test was performed through structural equation modeling and regression analysis. Results: Advertising preference, purchase, and recommendation intentions increased as consumers who saw advertisements on SNS perceived the characteristics of advertisements (information, entertainment, individuality, and interactivity). However, advertising preference was not formed by SNS advertising music characteristics (fun, information delivery, unconscious stimulation, and emotional homogeneity). In addition, the higher the perception of SNS advertising music characteristics (fun, information delivery, unconscious stimulation, and emotional homogeneity), the more advertising effects such as purchase and recommendation intentions were linked, and the higher the perception of SNS advertising music characteristics (fun, information delivery, unconscious stimulation, and emotional homogeneity), the more advertising effects such as purchase and recommendation intentions could be created. Finally, it was confirmed that advertising preference had a partial mediating effect between SNS advertising characteristics and advertising effects, and between SNS advertising music characteristics and advertising effects. Conclusions: Unlike previous studies that have investigated the causal relationship of advertising effects according to sub-factors such as SNS advertising characteristics and SNS advertising music characteristics, it is significant in that it analyzes the variables used in the study as secondary factors.

• 문화기술의 융합
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• 제9권6호
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• pp.291-300
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• 2023

본 연구의 목적은 예비유아교사들의 교직선택동기, 진로적응력, 자기주도학습 간의 관계는 어떠한지 알아보며, 예비유아교사의 교직선택동기가 진로적응력과의 관계에서 자기주도학습을 매개로 하여 미치는 영향을 분석하는 것이다. 본 연구에서는 부산광역시 소재 예비유아교사 271명을 대상으로 교직선택동기, 진로적응력, 자기주도학습는 어떠한지를 알아보기 위해 기술통계를 실시하였고, 각 변인간의 상관을 알아보기 위해 Pearson의 적률상관계수를 구하였고, 중다회귀분석과 매개효과의 유의성을 검증하기 위하여 Sobel Test를 실시하였다. 그 결과 첫째, 예비유아교사의 교직선택동기, 자기주도학습, 진로적응력의 인식에서는 진로적응력, 자기주도학습, 교직선택동기 순으로 높게 나왔다. 둘째, 교직선택동기가 높아질수록 자기주도학습과 진로적응력이 높아지고, 자기주도학습이 높아질수록 진로적응력이 높아지는 정적 상관이 나타났다. 셋째, 예비유아교사의 자기주도학습은 교직선택동기와 진로적응력을 부분매개하는 것으로 나타났다. 본 연구는 질 높은 유아교사교육을 실천하는데 다양한 관점을 모색하고 유아교사 양성기관의 교사교육 프로그램 개발을 위한 기초자료를 제공하였다는 점에서 의의가 있다.

• 산업융합연구
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• 제22권4호
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• pp.65-73
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• 2024

본 연구는 병원 종사자의 직무자원이 프리젠티즘에 미치는 영향과 직무착근도의 매개효과를 확인하는 것을 목적으로 한다. B시 소재 병원에 재직 중인 종사자 301명을 대상으로 2023년 7월 10일부터 8월 10일까지 설문조사를 통해 자료를 수집하였다. SPSS 26.0을 사용하여 빈도분석, 기술통계, 피어슨 상관계수를 분석하였다. 변수 간 관계 및 매개효과는 Baron & Kenny가 제시한 3단계 위계적 회귀분석과 Sobel's test 방법으로 검증하였다. 분석 결과, 직무자원, 직무착근도와 프리젠티즘 간에 유의한 상관관계가 있는 것으로 나타났으며, 직무자원과 직무착근도가 프리젠티즘에 부정적인 영향을 미치며, 직무자원과 프리젠티즘과의 관계에서 직무착근도는 부분매개를 하는 것으로 확인되었다. 이를 바탕으로 병원 종사자의 프리젠티즘을 감소시키기 위해 제도적 및 행정적으로 충분한 직무자원을 제공하고 지속적인 교육 기회를 제공함으로써 직무착근도를 향상시키는 방안을 제언하였다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제18권4호
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• pp.980-997
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• 2024

To improve the brightness of images and reveal hidden information in dark areas is the main objective of low-light image enhancement (LLIE). LLIE methods based on deep learning show good performance. However, there are some limitations to these methods, such as the complex network model requires highly configurable environments, and deficient enhancement of edge details leads to blurring of the target content. Single-scale feature extraction results in the insufficient recovery of the hidden content of the enhanced images. This paper proposed an edge detection-based multi-scale feature enhancement network for LLIE (EDMFEN). To reduce the loss of edge details in the enhanced images, an edge extraction module consisting of a Sobel operator is introduced to obtain edge information by computing gradients of images. In addition, a multi-scale feature enhancement module (MSFEM) consisting of multi-scale feature extraction block (MSFEB) and a spatial attention mechanism is proposed to thoroughly recover the hidden content of the enhanced images and obtain richer features. Since the fused features may contain some useless information, the MSFEB is introduced so as to obtain the image features with different perceptual fields. To use the multi-scale features more effectively, a spatial attention mechanism module is used to retain the key features and improve the model performance after fusing multi-scale features. Experimental results on two datasets and five baseline datasets show that EDMFEN has good performance when compared with the stateof-the-art LLIE methods.