• 한국학교ㆍ지역보건교육학회지
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• 제18권2호
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• pp.43-53
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• 2017

Objectives: The purpose of this study is to examine the relationship between sexually explicit video viewing and social support through the mass media and the sex openness of adolescents. Methods: This study used as the main data of 'Study on Measures against Sexualization of Juveniles through Mass Media in the Smart Age' conducted by 'National Youth Policy Institute' in 2014 nationwide. 3,176 of the 4,356 adolescents in Korea were selected as the final study subjects after excluding the 1,180 missing adjectives. Results: As a result, sex openness of male students was higher than that of female students. The higher the grade, the higher the sex openness, and the higher the stimulus, the higher the sex openness. The higher the imitation sharing, the higher the sex openness. The higher the human rights violation, the lower sex openness. Finally, the higher the social support, the higher the sex openness. Conclusions: In conclusion, strengthening the management of realistic media providers and emotional education rather than the unconditional regulation of mass media is expected to help prevent adverse effects on the sex openness of adolescents.

• 경영정보학연구
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• 제19권1호
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• pp.101-121
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• 2017

본 연구는 소셜 미디어 상 다양한 행위 중에서 '좋아요'를 누르는 행위가 의미하는 바를 감정적, 사회적으로 분석하여 그것이 소셜 미디어에 대한 전반적 태도에 어떠한 영향을 미치는 지, 또한 그 영향력이 성별에 따라 어떻게 달라지는 지 살펴보았다. 구체적으로, '좋아요'라는 행위에 담긴 의미를 감정적인 동감 측면과 사회적인 지지 측면으로 구분한 후, 그 의미를 지각하는 강도가 '좋아요'를 통해 이루고자 하는 단기적 목표 두 가지-관계의 강화 및 정보의 공유-와 소셜 미디어 사용에 대한 전반적 태도에 어떠한 방식으로 영향을 미치는 지 살펴보았다. 또한 여성의 경우 감정적 동감에서 관계 강화로 진화하는 과정이 더 강한 연관성을 보이며 남성의 경우 사회적 지지에서 정보 공유로 이어지는 과정이 더 강할 것이라 가정하였다. 285명의 소셜 미디어 사용자들을 대상으로 설문을 실시한 결과, 행위 관련 총 16개의 가설 중 10개가 채택되어 '좋아요'를 누르는 행위에 부여하는 의미의 강도에 따라 소셜 미디어 사용 태도가 어느 정도 달라지는 것이 확인되었으며 성별 차이의 경우 16개의 가설 중 의미에서 목적으로 이어지는 과정에서만 4개가 부분적으로 채택되어 성별 차이는 존재하지만 크지는 않은 것으로 나타났다. 본 연구는 '좋아요'를 단순히 양적으로만 이해하고 분석하는 것이 아니라 그 행위 안에 담긴 다양한 감정 및 기대를 규명하였다는 점에서 의의가 있다.

• 한국정보처리학회논문지
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• 제7권2S호
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• pp.721-732
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• 2000

Multimedia communication systems require not only high-performance computer hardwares and high-speed networks, but also a buffer management mechanism to process many data efficiently. Two buffer handling methods, Push and Pull, are commonly used. In the Push method, a server controls the flow of dat to a client, while in the Pull method, a client controls the flow of data from a server. Those buffering schemes can be applied to the data transfer between the packet receiving buffer, which receives media data from a network server, and media playout devices, which play the recived media data. However, the buffer management mechanism in client-sides mainly support either one of the Push or the Pull method. Consequently, they have some limitations to support various media playout devices. Futhermore, even though some of them support both methods, it is difficult to use since they can't provide a unified structure. To resolved these problems, in this paper, we propose an efficient and flexible Push/Pull buffer management mechanism at client-side. The proposed buffer management scheme supports both Push and Pull method to provide various media playout devices and to support buffering function to absorb network jitter. The proposed scheme can support the various media playback devices using a single buffer space which in consequence, saves memory space compared to the case that a client keeps tow types of buffers. Moreover, it facilitates the single buffer as a mechanism for the absorbing network jitter effectively and efficiently. The proposed scheme has been implemented in an existing multimedia communication system, so called ISSA (Integrated Streaming Service Architecture), and it shows a good performance result compared to the conventional buffering methods in multimedia communication environments.

• Journal of Electrical Engineering and information Science
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• 제2권3호
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• pp.41-50
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• 1997

In this paper, we describe the design, implementation and evaluation for a multimedia conferencing system with intramedia and intermedia synchronization support between audio and video. The synchronization mechanism proposed here is capable of dynamically adapting to various network conditions thus providing an optimized QoS. In realizing the system based on this mechanism, NeVoT on Mbone is used for audio and VIC for video. Furthermore a synchromization controller is designed and realized with a unique process in supporting intermedia synchronization. Each media agents handling its media stream are modified with intramedia synchronization function. And a communicative function between media agents and synchronization controller is added as well for intermedia synchronization function. Each media agents function reports its buffering status to the synchronization control process which in turn send out optimized buffering delay value thus supporting intermedia synchronization. The realized system is configured and tested on Ethernet and ATM network where performance measurements were performed and its effective synchronization support has been assured.

• International Journal of Computer Science & Network Security
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• 제24권7호
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• pp.207-213
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• 2024

This study investigated the perceived usability of the Blackboard learning management system (LMS) amongst students at Umm Al-Qura University. A quantitative approach was employed to explore the potential relationship between Blackboard usability and social media platform usage. Additionally, the study aimed to identify other factors influencing perceived usability. Data were collected through a three-section questionnaire distributed electronically to a sample of students (n=544). The findings, based on System Usability Scale (SUS) scores, revealed that the overall perceived usability of Blackboard resided near the midpoint of the scale, indicating an "acceptable" level. A potential negative correlation emerged between social media usage time and perceived Blackboard usability. Students who reported lower social media usage exhibited higher SUS scores. Training on Blackboard usage demonstrably exerted a positive influence on perceived usability. Gender was not identified as a statistically significant factor. An analysis of student support methods revealed that seeking help from a friend was the most prevalent approach, followed by search engines, university technical support, and social media platforms. The findings suggest that implementing strategies to improve Blackboard usability at Umm Al-Qura University could be achieved through readily accessible training materials and the exploration of alternative support channels.

• 한국학교보건학회지
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• 제25권1호
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• pp.133-142
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• 2012

Purpose: The purpose of this study is to identify the effects of suicide reports by mass media and social support on suicide ideation for college students. Methods: Participants are 350 undergraduate students in one university. This study uses three questionnaires: Perception and Attitude toward Suicide Reports, Social Support, and Suicidal Ideation. The SPSS/WIN 12.0 program is used to analyze the data. In particular, the participants' biographical data are analyzed into frequency and percentage. The degrees of suicide reports, social support, and suicide ideation are calculated into Mean and SD. Moreover, the suicide ideation by suicide report and social support are analyzed by the two-way analysis of variance (ANOVA). Results: This study reveals that college students have an average of 30 minutes to one hour news time a day (38.9%) and have at least one suicide report in a month (30.3%). 79.7% participants believe that the suicide report of mass media results in the cause of the copycat suicide. In terms of suicide report and suicide ideation, the types of mass media (F (4,340)=2.41, p<.05) and suicidal urge (F (1,340)=31.23, p<.01), respectively, have significant influences on suicide ideation. On the other hand, the social support and suicide ideation, whether college students have their mentors (F (1,328)=13.26, p<.001) and/or careres (F (1,328)=26.84, p<.001) have significant influences on suicide ideation. Conclusion: College students have higher suicide ideation at news by internet site rather than by radio, TV, and so on. Moreover, college students who have a suicide feeling in the last one year, have more suicide ideation than who have not. On the other hand, college students who have a mentor and carer tend to have less suicide ideation.

• 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.

• 경영과정보연구
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• 제35권1호
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• pp.1-22
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• 2016

한국의 외국인 근로자 문제는 1988년 서울 올림픽 이후 외국인 근로자수가 급증하면서 본격적으로 제기되기 시작하였다. 이들은 열악한 근무환경과 저임금, 임금체불, 문화적응 등으로 많은 어려움을 겪고 있다. 본 연구는 외국인 근로자들의 사회적 자본(사회적 네트워크 및 사회적 지원)과 미디어 이용(한국 및 중국 미디어)이 그들의 문화적응과 직무만족에 미치는 영향을 분석함으로써 이들을 고용하는 기업들과 이들을 지원하는 공익단체에 실무적 시사점을 주고자 한다. 본 연구의 목적달성을 위하여 중국인 근로자 273명(조선족 근로자 216명과 한족 근로자 57명)에 대한 설문조사를 근거로 하여 연구가설을 검증하고 이론적이고 실무적인 결과를 제시하고자 하였다. 본 연구를 통해 도출된 실증적 연구결과는 다음과 같다. 첫째, 외국인 근로자의 사회적 자본 중 모국인 네트워크, 한국인 네트워크, 가족지원 및 모국인 지원 등의 독립변수가 매개변수인 문화적응에 정의 (+) 영향을 미치는 것으로 나타났고, 또한 이들의 독립변수들은 직무만족에도 정의 (+) 영향을 미치는 것으로 나타났다. 둘째, 미디어 이용변수 중 한국 미디어는 문화적응과 직무만족에 모두 정의 (+) 영향을 미치는 것으로 나타났다. 셋째, 매개변수인 문화적응은 모국 네트워크와 직무만족의 관계, 그리고 한국인 네트워크와 직무만족 간의 관계에서 부분매개의 역할을 하는 것으로 나타났다. 또한 문화적응은 가족지원과 직무만족의 관계, 모국인 지원과 직무만족의 관계, 그리고 한국 미디어와 직무만족의 간의 관계에서 완전매개의 역할을 하는 것으로 나타났다. 본 연구의 결과는 사회적 자본과 한국 미디어 이용이 문화적응과 직무만족의 중요한 요인임을 확인시켜 주었으며, 문화적응의 변수가 중요한 매개요인으로 나타난 것은 외국인 근로자의 경우에, 문화적응이 매우 중요한 매개관계를 하고 있음을 각인시켜주고 있다.

• Journal of Information Technology Applications and Management
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• 제14권2호
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• pp.27-47
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• 2007

In an effort to apply IT to practices of learning, universities are trying to implement e-Learning systems and expanding the extent of their usage. Nowadays, e-Learning systems are not only used for conducting web-based distance learning, but also used for supporting traditional classes education by encouraging communication and information sharing between instructors and learners or among the learners. There is relatively lack of studies on the exploitation of e-Learning systems in the traditional classes, in comparison with a distance education. Specifically, howe-Learning systems could support the traditional class and/or which benefits e-Learning systems could offer in the classes are among the important issues. In this study, we suggest that e-Learning systems would be the rich media to communicate and exchange information among people who participate in a class. We derive key variables like media richness and media experience from Media Richness Theory and from Channel Expansion Theory. Moreover, Media usefulness and Satisfaction of a learner with e-Learning system is drawn from the literature on IS success. We examine the effects of perceived media richness, media usefulness, and media experience on leaner's satisfaction with e-Learning systems. In addition, we also investigate learner's media usefulness perception which is positively related to media richness and media experience. Finally, learner's experience with e-Learning systems affects perceived media richness. Based on the results of an empirical test. we first suggest that perceived media richness with e-Learning systems contributes to increase media usefulness and satisfaction of a learner. Second, media experience is an important predictor of media richness and media usefulness perception. Consequently, the result can support Channel Expansion Theory. Finally, media usefulness perception affects learner's satisfaction with e-Learning systems.

• 한국CDE학회논문집
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• 제20권3호
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• pp.254-262
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• 2015

This study proposes an approach to Product Data Management (PDM) education for collaborative product data management, which can support collaborative product development process. This approach introduces social media and a PDM system into a framework for PDM education supported by consistent product development process and product data model. It has been applied to two PDM classes and the result shows that the social media in PDM education can support not only experiences of the collaborative product data management but also interactive and informal communications among instructors and participants using integrated social media with product data during courses.