• The Journal of the Korea Contents Association
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• v.21 no.5
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• pp.247-258
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• 2021

The purpose of this study is to investigate whether character education program using Youtube PSAs affect psychological and social maturity of pre-service teachers. For data collections, questionnaires and semi-structured interview are used by 23 sophomores majoring in teacher education. The results are as follows. First, the participants showed highly significant improvement on each of two maturities as well as entire psychological and social maturity. Second, the score of factors of social maturity was lower than that of those of psycho maturity. it could be estimated that college students live in nuclear family and individualization is valued more. Third, while pre-test scores of entire psycho-social maturity are not statistically significant, post-test scores of each of psycho-social maturity indicated statistical significance. In particular, unlike pre-test, there is a strong positive correlation in post-test due to mutually positive impact of two factors. Fourth, there was no statistically significant sex difference. Lastly, according to the result of interview, participants had strong views on the effects of personality education associated with use of Youtube PSAs on motivation and focus in class, caring for others, and leading to positive behaviors.

• Journal of Korea Multimedia Society
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• v.16 no.5
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• pp.577-590
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• 2013

Shamir's (k,n)-threshold secret sharing scheme is not secure against cheating by attacker because the signature of participants is omitted. To prevent cheating, many schemes have been proposed, and a proactive secret sharing is one of those. The proactive secret sharing is a method to update shares in the secret sharing scheme at irregular intervals. In this paper, a proactive image secret sharing scheme over $GF(2^8)$ is proposed for the first time. For the past 30 years, Galois field operation is widely used in order to perform the efficient and secure bit operation in cryptography, and the proposed scheme with update phase of shadow image over $GF(2^8)$) at irregular intervals provides the lossless and non-compromising of secret image. To evaluate security and efficiency of images (i.e. cover and shadow images) distortion between the proposed scheme and the previous schemes, embedding capacity and PSNR are compared in experiments. The experimental results show that the performances of the embedding capacity and image distortion ratio of the proposed scheme are superior to the previous schemes.

• The Journal of the Korea Contents Association
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• v.21 no.7
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• pp.629-636
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• 2021

The study analyzes the relationship between demand, satisfaction, and perception for non-face-to-face continuing medical education(CME) conducted in 2020 for 225 radiological technologist license holders working in the Busan area, and the factors that influence the positive perception of CME. T-test and one way ANOVA were used, and stepwise multiple regression analysis was performed. As a result, there were high demands for mobile publicity, professional radiological technologist, educational expenses support from institution heads, and CME. Male radiological technologist, over 50 years of age, and the more experienced they had a job chance, the more they had a positive perception. In the correlation between variables, the perception of the education system and the need for education showed a positive correlation. The higher the satisfaction with the education system, the higher the perception of the need for education. About 53% of the content was satisfied. Therefore, in order to raise awareness of CME, it is considered that policy changes to the education system are necessary first of all. It is considered that the search for the development of education content and educational content is necessary above all.

• Journal of the Korean Applied Science and Technology
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• v.36 no.1
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• pp.142-152
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• 2019

This study aimed to explore the association between obesity index and heart rate variability (HRV) in college-aged male smokers. A total of 85 male college students (> 10 cigarettes per day for at least 3 years) were participated in this study. According to a standardized protocol, body mass index (BMI), percent body fat (%BF), waist circumference (WC), and waist-to-hip ratio (WHR) were taken as obesity indices. Resting r-r interval was monitored for HRV analysis as an indicator of cardiac autonomic regulation. Compared with low WHR subjects, high WHR subjects had significantly lower values of rMSSD, pNN50, HF, and SD1, suggesting decreased parasympathetic activity. No such differences in LF/HF ratio were found between the WHR-based subgroups. Bivariate correlation analysis showed that obesity indices of WC, WHR, and %BF were significantly associated with rMSSD, pNN50, HF, and SD1, with a tendency for correlation coefficient to be higher with WHR than with WC or %BF. No significant association was found between BMI and HRV parameters indicative of parasympathetic activity. This study suggest that central obesity is significantly associated with decrease in parasympathetic activation, independent of BMI as an indicator of obesity, in male college smokers.

• The Journal of the Korea Contents Association
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• v.21 no.10
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• pp.594-602
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• 2021

This study aims to identify the learning behavior patterns recognized by students to find effective tutoring operational methods, and further analyze the impact of learning behavior patterns on academic performance and learning satisfaction. To this end, 105 participants in the tutoring program at D University based in Busan Metropolitan City collected data and conducted descriptive statistics, correlation analysis and regression analysis according to research problems. First, the study found that students who participated in tutoring had the most environment-dependent and self-taught learning behavioral styles and environment-independent and self-taught learning behavioral style. Second, the correlation between learning behavioral styles and academic achievement and learning satisfaction shows that there is a high correlation between positive and cooperative learning behavioral styles and environment-independent and self-taught learning behavioral styles. Third, regression analysis on academic achievement and learning satisfaction showed that positive and cooperative learning behavioral styles significantly affects learning satisfaction, but environment-independent and self-taught learning behavioral style, environment-dependent and self-taught learning behavioral style, and passive learning behavioral style were not significant. These results suggest that from the school perspective, learning behavior can be recognized as an important factor in students' academic success and failure, so instructors need to check learners' learning behavior patterns and provide appropriate tutoring teaching and learning design plans.

• Journal of Digital Convergence
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• v.18 no.7
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• pp.189-199
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• 2020

The purpose of this study was to provide basic data for the development of strategic measures for the application and growth potential of care farming as a healing for office workers. Therefore this study was investigated the relationship between supply conditions and offer programs for the activation of care farming and the intention of participants to use. The analysis results of the survey conducted for general office workers are as follows. Frist, there was a significant positive correlation between all sub-factors and intention to use. Second, the higher the awareness about the convenience of using healing facilities among supply conditions of healing farming and the necessity of medical service, the higher the intention to use. Third, the higher the awareness about the necessity of cultivation of crops, animal mediation, natural activities, and cultural activities among supply conditions of healing farming, the higher the intention to use. Based on the above analysis results, this study discussed the differences from previous studies and also derived insights for establishing a strategic plan to promote care farming.

• The Journal of the Korea Contents Association
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• v.21 no.11
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• pp.814-825
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• 2021

The purpose of this study is to analyze the effect of teaching presence on academic achievement and learning satisfaction in the university online tutoring learning environment, and to find teaching methods for students' adaption of college life and their reinforcement of learning capabilities. In the study, the relationship between teaching presence, academic achievement and learning satisfaction were analyzed for those who participants in the tutoring program of the Busan D School OO Research Center during the first semester of 2021. As a result of the study, the relationship between teaching presence, academic achievement and learning satisfaction was indicated high correlation in the order of learning management, participation management and content structure of learning activities; the effect of teaching presence on academic achievement and learning satisfaction was found a significant effect in learning management, which is a sub-area of the tutees' learning activities. These results therefore suggest the direction of the operation process and method reflecting teaching presence, and provide an in-depth discussion on the learning management method that can improve the quality of the learner's learning experience in the learning environment.

• Korean Journal of Cognitive Science
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• v.34 no.3
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• pp.153-180
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• 2023

Previous research on the action effect had shown how simple action towards a stimulus can enhance the processing of that stimulus in subsequent visual search task (Buttaccio & Hahn, 2011; Weidler & Abrams, 2014). In four experiments, we investigated whether semantic representation of action word can induce the same attentional boost towards that stimulus and whether the type of action performed can modulate the action effect. In experiment 1, we replicated the same experimental paradigm displayed in previous studies. Participants were first shown an action word cue - "go" or "no". When the action cue was "go", participants were to press a designated key, but not to when the action cue was "no". Next, participants performed a visual search task, in which they reported the orientation of a tilted bar. The target could appear on top of the previously shown prime object (valid), or not (invalid). Reaction times (RTs) to the search task were measure for analysis and comparison, and the action effect had been replicated. In experiment 2, participants were instructed to respond with the keyboard for the action task, and to respond with the joystick for the visual search task. In experiment 3, participants were instructed not to press any key on the onset of prime, and then perform the visual search task to isolate the effect of semantic representation. Lastly, in experiment 4, participants were instructed to press separate keys for "go" and "no" on the onset of prime, and then perform the visual search task. Results indicate that semantic representation alone did not modulate the action effect, regardless of type of action and medium of action.

• Journal of the Korean Society of Clothing and Textiles
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• v.33 no.6
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• pp.841-852
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• 2009

The aim of the study was to quantify and explore the causal relationships of appearance management through an analysis of one's own clothing and wearing experience, namely clothing preference, personality factors, emotion and mood, newness, familiarity of one's own clothing, and social interaction. Explorative quantitative and qualitative research was carried out using a uniformly composed sample of 10 size 12 females. A personality questionnaire was completed a short while prior to the study. A 10 day ‘wearing diary’ was administered to record where and when outfits were worn. Two questionnaires were completed measure emotion and mood, prior to changing into clothing (a daily baseline), and when they were wearing or changed clothing (dynamic mood). Qualitative information was recorded and included their thoughts and feelings other than the questionnaires, along with photographs that were taken by participants. Preference, social and newness ratings for each outfit worn were recorded after the 10 day period. SPSS analysis identified relationships and linear regression analysis identified preference indicators. Thematic analysis identified 9 themes regarding the management of mood, personality and social factors when wearing one's own clothing. The results indicated strong relationships between emotion, mood, personality and preference and how much newness and different levels of social interaction influence these factors. Participants tended to match their mood and personality with their clothing choices but in some cases also compensated. This research recognises the value of consumer psychological processes involved in appearance management, and has implications for further research into product involvement, post-purchase behaviour and retail strategies for personal shoppers.

• Science of Emotion and Sensibility
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• v.19 no.3
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• pp.15-26
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• 2016

This study was performed to investigate whether aesthetic preference is related to the personality of an individual or not. Even though prior studies have reported that aesthetic preference for a certain style of art is associated with a personality factor, it is more important to focus on impressions and feelings about paintings than the style of art. The present study tried to examine how positive, negative, and neutral feelings about paintings are related to a personality factor, and that familiarity has an effect on aesthetic preference. After participants answered a Big-Five personality questionnaire, they then rated the preference for and familiarity about paintings which implied emotions. The results showed that individuals with higher scores of neuroticism preferred negative paintings. A preference for negative paintings is hard to explain, but this could be explained by results of this study. A hypothesis that familiar paintings would be more preferred is supported by the data. Aesthetic preference has both objectivity and the subjectivity. This study explained subjectivity through individual differences, and investigate art from a psychological point of view rather than conservative methods that sort paintings into art history.