• Knowledge Management Research
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• v.24 no.2
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• pp.161-183
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• 2023

Social Q&A sites, where individuals freely ask and answer each other online, play an important role as a public knowledge repository. For their sustainable growth, social Q&A sites constantly need new askers and new answerers. However, previous studies have focused only on answerers, with little attention to new users or askers. This study examines the factors encouraging new users to continue using social Q&A sites based on motivational affordance theory and self-determination theory, and also investigates whether the factors differ depending on the types of users (i.e., new asker vs. new answerer). In addition, the moderating effect of prior experience with a member Q&A site was examined. Using logistic regression and XGBoost, we analyzed online activity data from 25,000 users in the Stack Exchange Network and found that design elements with motivational affordances had significant impacts on new users' continuance behavior. The experience of a member Q&A site negatively moderated the influence of the antecedents of continuance behavior. Interestingly, the influence of editing was not significant in the analysis of new users as a whole, but was significant in the separate analyses of askers (significantly negative) and answerers (significantly positive).

• The Journal of the Korea Contents Association
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• v.12 no.12
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• pp.63-70
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• 2012

In medical image processing field, object recognition is usually processed based on region segmentation algorithm. Region segmentation in the computing field is carried out by computerized processing of various input information such as brightness, shape, and pattern analysis. If the information mentioned does not make sense, however, many limitations could occur with region segmentation during computer processing. Therefore, this paper suggests effective region segmentation method based on R2-map information within the magnetic resonance (MR) theory. In this study, the experiment had been conducted using images including the liver region and by setting up feature points of R2-map as seed points for 2D region growing and final boundary correction to enable region segmentation even when the border line was not clear. As a result, an average area difference of 7.5%, which was higher than the accuracy of conventional exist region segmentation algorithm, was obtained.

• The Journal of the Convergence on Culture Technology
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• v.4 no.1
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• pp.17-25
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• 2018

The purpose of this study was to identify student's patient education experience, satisfaction with clinical nursing practice and self-efficacy in Maternity nursing practice. As the result, The nursing students had difficulties in accessing the patient, education time, and lack of self-confidence. There was a statistically significant difference in satisfaction of patient education experience with method of education, time of practice, and satisfaction of maternity nursing, satisfaction with clinical nursing practice with attitude of students, satisfaction of clinical practice, practice place, self-efficacy with grades, satisfaction of maternity nursing, practice place. In order to overcome the difficulties and limitations of maternal nursing practice, we maintain close cooperation with the hospital staff and propose it as a strategy of teaching method and practice guidance reflecting the needs of nursing students.

• Journal of Digital Convergence
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• v.17 no.11
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• pp.127-136
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• 2019

In the social media, information that users share with service providers can be divided into personal identification information such as gender and age and privacy-related information such as photos and comments. However, previous works on IS and service management have shed relatively little light on the difference of information-sharing decisions depending on the type of information. This study examines information-sharing decisions by separating the two types of information. A structural equation modeling method is used to test the research model based on a sample of 350 Facebook in South Korea. Analysis results show that self-expression, trust, and perceived security had a significant positive effect on both user's intentions to give personal identification information and their intentions to give privacy-related information. However, privacy concerns negatively affected their intentions to give personal identification and intention to give privacy-related information. The analysis results confirm that there was no difference between decision-making processes about sharing personal identification information and ones about sharing privacy-related information.

• Journal of Korea Technology Innovation Society
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• v.14 no.4
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• pp.1050-1072
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• 2011

It is well known that international cooperation is considerably more difficult because of the difference of interests, level of technology of the partners, social and culture as well as various macro-environmental conditions. This case study aims to investigate the success factors of international R&D collaboration between two firms. For it, an in-dept interview was conducted to the Etri-Microsoft Information Security Lab. A comprehensive research on theories, such as resource-based theory, network theory, relationship marketing theory and market power perspective was done as well. The results show clear objectives, communications based on trust, core competence on which the counterpart can rely on, consideration on the government decision process as well as the environment are important for success.

• Journal of the Korea Society of Computer and Information
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• v.19 no.3
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• pp.127-134
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• 2014

This study is to suggest ideas for policies and theories by analysing the control effectiveness of parents' raising attitude on the influence of adolescents' self-control and Internet Expectation. For this, the questionnaire surveys composed of measures on adolescents' self-control, Internet Expectation, and parents' raising attitude, were carried out to 312 high school students in G metropolitan city, and the relation of the variables were studied. As a result of research, it was found out adolescents' self-control and Internet Expectation influenced the internet addiction. Expecially, the influence of adolescents' self-control and Internet Expectation of internet addiction was differed by the parent's raising attitude. In this research, the ideas of policies were suggested based on the analysis of the results.

• 한국노년학
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• v.36 no.3
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• pp.751-763
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• 2016

In this article, we conducted a literature review about cognitive aging and social-psychological factors that influence cognitive function in old age. As getting older, cognitive function was mostly seen as declining, even though the effect of aging is differential across domains of cognitive ability. The negative view about cognitive aging might be reflecting social-psychological factors such as age stereotypes. Age stereotypes vary among different cultures, but appear to be negative in general. Negative age stereotypes are related to lower level of memory performances. Older adults who were experimentally presented with positive age stereotypes exhibited better memory performances than those with negative age stereotypes. Self-referent belief, appraisals of one's own cognitive abilities, could also affect actual performance in cognitive tasks. Older adults showed lower self-referent belief than younger adults, and it might explain memory decline in old age. Theoretical explanation and implication about the relationship between social-psychological factors and cognitive abilities were discussed.

• Journal of Korean Society of Rural Planning
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• v.25 no.4
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• pp.87-97
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• 2019

본 연구는 방과 후 농업 체험활동 프로그램이 초등학생의 정서지능과 회복탄력성 향상 및 우울감 감소에 미치는 영향을 알아보고자 실시하였다. 서울시 초등학교에 재학 중인 4-6학년(11-13세) 초등학생 총 30명이 본 연구에 참여하였다. 참여에 동의한 30명의 학생 중 농업체험 프로그램에 참여를 희망한 18명은 실험군으로, 농업체험 프로그램에 참여를 희망하지 않은 학생 12명은 대조군으로 집단화 하였다. 실험군은 2018년 4월부터 7월까지, 총 12주간(주 1회, 회기당 60분)의 방과 후 활동으로 본 프로그램에 참여하였다. 초등학생의 정서적 건강 증진을 위해 사회정서학습 이론에 기반한 농업체험 프로그램을 설계하였다. 프로그램 실시 전과 후에 자기보고식 설문지를 이용해 정서지능, 우울, 회복탄력성을 측정하였다. 그 결과, 농업 체험활동 프로그램에 참여한 초등학생의 정서지능이 향상되었고(P=0.031), 우울감이 감소된(P=0.011) 반면 대조군에서는 유의한 차이가 나타나지 않았다(P>0.05). 회복탄력성은 실험군과 대조군에서 모두 실험 전후 유의한 차이가 없었다(P>0.05). 본 농업체험 프로그램에 참여한 아동들은 프로그램에 대해 높은 만족감을 보고하였다. 따라서 본 연구에서 사회 정서학습이론을 적용한 농업체험 프로그램이 초등학교 고학년 학생의 정서지능 향상과 우울감 감소에 효과적인 것으로 나타났다. 추후, 표본수를 확대하여 농업 체험활동 프로그램의 효과 검증 연구가 추가적으로 필요할 것이라 생각되며, 다양한 지역의 초등학생들에게 확대 적용하는 연구도 필요할 것이다.

• Journal of the Korea Society of Computer and Information
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• v.18 no.6
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• pp.91-99
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• 2013

This study has a purpose of analyzing the difference of care giver's subjective awareness of self-efficacy and job satisfaction according to the types of welfare facilities, before studying the structural relationship between the management variables about workers at the welfare facilities for improving the quality of elderly medical welfare service. As a result of empirical analysis, there was no awareness difference of care givers according to the types of the elderly medical welfare facilities, but in general it was emphasized that the care givers' satisfaction with self-efficacy and job satisfaction was very essential in providing the elderly medical service. Therefore, this study has significance that it provided the theoretical fundament for efficient management method about the workers of the elderly medical welfare facilities.

• Journal of the Korean Magnetics Society
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• v.3 no.1
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• pp.48-55
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• 1993

We report the photoemission (PES) studies for the Co/Pd multilayter. The Co 3d PES spectrum of Co/Pd exhibits two interesting features, one near the Fermi energy, $E_{F}$, and another at ~2.5 eV below $E_{F}$. The Co 3d peak near $E_{F}$ of Co/Pd is much narrower than that of the bulk Co, consistent with the enhanced Co magnetic moment in Co/Pd compared to that in the bulk Co. The Co 3d feature at ~-2.5 eV resembles the Pd valence band structures, which suggests a substantial hybridization between the Co and Pd sublayers. The Co 3d PES spectrum of Co/Pd is compared with the existing band structures, obtained using the local spin density functional calculations. A reasonable agreement is found concerning the bandwidth of the occupied part of the Co 3d band, whereas a narrow Co 3d peak near $E_{F}$ seems not to be described by the band structure calculations.