• 한국과학교육학회지
• /
• 제29권3호
• /
• pp.291-303
• /
• 2009

According to social constructivism, group interaction is very important when students construct their knowledge. Many researchers have developed methods of teaching on the basis of group interaction because they recognized the importance of group interaction. There are a large variety of issues related to group interaction including group size, the gender and ability composition of groups, seating arrangements, textbook use, gestures, and role assignments. However, research on group interaction in science learning is still insufficient. In this study, we focused upon the emerging role of the primary leader. We investigated the primary leader's diverse role when students are solving mechanics problems. The participants were one group composed of three students in an upper-level mechanics class. To analyze these students' group interactions, their verbal interactions during meetings were videotaped and audiotaped during one-semester period. We also conducted interviews with the three students and analyzed their reports. As a result, we could find a special student who had the role of primary leader. We could also find the leader's three different leadership roles in different problem situations by inductively; explainer, facilitator and evaluator. Group interaction had different aspect according to the different role of leaders. The group interactions were the most active when the leader played the role of facilitator.

• 복식
• /
• 제47권
• /
• pp.19-32
• /
• 1999

The results from the consideration of this are as follows. 1. Dan dynasty has been 10-parts dancer and musician group for courtesy ceremonial meetings of ancient china. 2. Except ceremonial dance and music common dance and musics performed it in front of common peaples meetings. 3. After unification of Dang dynasty many commercial men and artist come frome western of China threfore influenced their costume habbits and behabiers from royal families costumes and common peaples costume without concern of that one's social position. 4. As the people who lived in thewest areas of old china there characterestics of the costumes are open breast jacked breast laped long skirt long scarf long boots narrow sleeve jackets patterend textilles(for womens) round neck narrow sleeved one-pies dress belt, long boots. patterend textiles(for mens). 5. Dancer's Costumes mode are as follows: 1) For females : high hair style, Twin 'high hair style. jewrery decorated hat bird's hair decorated cap. ribons. 2) For mens: Bok-doo. Hokongdu 6. Except traditional old china dancer dress they have many interested dancer dress for instance dang dynasty's 'Ye-sang woo yui dnace' dancer dress is very elegant and interested hip level jacket has peacoak wing shaped sleeves and long skirt has try angles shape attached apron this dancer dress begins wi-jin nam·book-dynasty. 7. Men dancer dress is just head cap bok doo long narrow sleeved one-pies dress.

• The Journal of Asian Finance, Economics and Business
• /
• 제10권2호
• /
• pp.99-108
• /
• 2023

This study's goal is to investigate the effects of board size, the number of annual board meetings, the profitability of the company, and the audit Committee on the disclosure of climate change in Saudi companies listed on the stock exchange. It was conducted to evaluate affecting some factors on carbon emissions by the regression model. The study uses the content analysis method. Data was collected from the annual and sustainability reports, and the platform database Refinitiv, an LSEG (London Stock Exchange Group Company) for the period 2018 to 2021. The study sample is 51 companies. The study findings showed Saudi Arabia saw its first significant overall drop in CO2 emissions with a 22.61 MtCO2 decline (3.93%) in 2018. The study revealed a positive connection between the size of the director's board, and the disclosure of carbon emissions in Saudi firms listed on the stock market. While other factors are not related to the number of director's board meetings, the audit committee, and the profitability of the company on the disclosure of carbon emissions in the Saudi companies listed on the stock exchange.

• Educational Technology International
• /
• 제17권1호
• /
• pp.87-116
• /
• 2016

In this research, we designed a teacher professional development (PD) program where a small group of mathematics teachers could share, reflect on, and discuss their pedagogical knowledge and practices of ICT-integrated lessons, using a video annotation tool called DIVER. The main purposes of this paper are both micro and macro: to examine how the teachers were engaged in the meaning-making process in a video-based PD (micro); and to derive implications about how to design effective video-based teacher PD programs toward a teacher community of practices (macro). To examine teachers' meaning-making in the PD sessions, discourse data from a series of 10 meetings was segmented into idea units and coded to identify discourse patterns, focusing on (a) participation levels, (b) conversation topics, and (c) conversation depth. Regarding the affordance of DIVER, discourse patterns of two meetings, before and after individual annotation with DIVER were compared through qualitative vignette analysis. Overall, we found that the teacher discourse shifted the focus from surface features to deeper pedagogical issues as the PD sessions progressed. In particular, the annotation function in DIVER afforded the teachers to exercise descriptive analyses of video clips in a flexible manner, thereby helping them cognitively prepared to take interpretative and evaluative stances in face-to-face discussions with colleagues. In conclusion, deriving from our research experiences, we discuss the possibilities and challenges of designing video-based teacher PD in a school context.

• International Journal of Advanced Culture Technology
• /
• 제11권1호
• /
• pp.135-146
• /
• 2023

Psychological support is crucial in navigating one's academic and professional lives, especially for students living abroad and pursuing higher education. This study aims to explore the narratives of social support seeking in a group of Korean international graduate students in an urban university setting in the United States. Qualitative research method of narrative approach was used to examine how three Korean graduate students exchanged psychological support. Analysis of interviews, observations, and documents found that four types of social support (informational, instrumental, appraisal, and emotional) were being exchanged and that emotional support was accessible predominantly in individual meetings than in group gatherings. Additionally, the reasons for abstaining from initiating group gatherings are discussed in relation to the Korean culture where participants were mindful of not infringing on each other's time. These findings inform theory on socio psychological support seeking and its relation to cultural values and offer practical insights into psychological support in international students in higher education settings.

• Child Health Nursing Research
• /
• 제26권3호
• /
• pp.366-375
• /
• 2020

Purpose: This study was conducted to evaluate the efficacy of a community-based follow-up program on parenting stress, parenting efficacy, and coping among parents with premature infants. Methods: A non-equivalent control group pre-post quasi-experimental design was used. This program consisted of structured home visits and self-help group meetings for 6 months. The experimental group (n=29) received visits by an experienced neonatal intensive care unit (NICU) nurse and the control group (n=27) was visited by a visiting nurse. Data were analyzed using the χ² test, t-test, and analysis of covariance. Results: Parents' coping behavior significantly differed in the experimental group compared to the control group (t=3.14, p=.003). In particular, coping subscale I, for maintaining the family situation (t=2.63, p=.011), and subscale III, for understanding the infant's medical situation (t=4.30, p<.001), showed significant differences in the experimental group. There were no significant between-group differences in parenting stress or parenting efficacy. Conclusion: The findings of this study suggest that home visits by an experienced NICU nurse provided through a community-based follow-up program were an effective intervention to improve coping behavior among parents with premature infants.

• 보건의료산업학회지
• /
• 제8권2호
• /
• pp.197-208
• /
• 2014

This study examined the relationship between social support and depressive symptom among the middle and old-aged people, using dataset of the Korean Longitudinal Study of Ageing(KLoSA 3rd). The subjects were 7,874 persons aged 45 and over. Using this data, social support variables and its relation to depressions was observed based on social network model. A multiple regression model was used to study an association between social support and depressive symptom, controlling for socio-economic characteristics, health status and behavior. Also, this paper run two subgroup regression models based on gender of subjects (male, female), controlling for confounding variables. Authors found that there was lower the number of meetings with friends (1~3 times in a week: b=0.597, p<0.0001; 1~2 times in a month: b=0.609, p<0.0001; 1~6 times in a year or under: b=1.598, p<0.0001) and negative relationship between spouse satisfaction (b=-0.007, p=0.0237), children satisfaction (b=-0.019, p<0.0001) and depressive symptom. Also quantitative effect differences were compared according to gender and its effect on depression. Compared to the male group, female group showed significant difference in quantitative effect with number of meetings with friends and spouse satisfaction, but children satisfaction didn't show clear differences according to gender. This study suggested the importance of social support for promoting mental health among the middle and old-aged people.

• 보건교육건강증진학회지
• /
• 제26권5호
• /
• pp.15-26
• /
• 2009

목적: 지역사회 참여형 보건 연구에서 현장의 지식과 경험을 토대로 주요 보건문제를 파악하고 대응하기에 중요한 역할을 하는 지역사회 주민 조직의 구성과 운영상의 특성을 논의하고자 한다. 방법: 미국 펜실베이니아 주 12개 저소득층 정부임대 아파트의 노인 입주자들을 대상으로 각 아파트마다 자발적인 주민조직을 구성하여 사회생태학 모형을 활용한 6단계 지역사회 역량강화 과정을 수행하였다. 주민조직의 과정과 성과를 기록한 200여건의 문건에 대해 질적 연구 분석을 실시하였다. 결과: 2년간 주민조직 월례회의를 통하여 낙후된 아파트 건물상태, 신선한 식재료 마련, 주민 간 관계개선 등을 지역사회 건강증진의 우선순위로 선정하고, 자체적인 해결방안을 구상하여 추진하였다. 주민조직 내의 리더십, 주민조직에 꾸준히 참여하는 핵심 회원, 주민조직 회의 개최의 일관성이 주민들에 의한 자치적인 지역사회 건강증진 활동의 주요 특성으로 드러났다. 리더십이 형성되고 회원의 참여와 회의의 개최가 꾸준한 주민조직일수록 지역사회 건강증진 목표 및 관련활동이 집중적인 경향이 있었다. 결론: 리더십, 참여, 일관성 등은 참여적이고 자치적인 지역사회 건강증진을 위한 역량요인이며, 이러한 역량을 개발하고 강화하는 과정에 대한 모니터링과 과정평가의 중요성이 강조된다.

• 성인간호학회지
• /
• 제25권6호
• /
• pp.712-724
• /
• 2013

Purpose: The purpose of this study was to examine the effects of a walking program for office workers in terms of social cognitive theory, walking activities and physiological indexes. Methods: A nonequivalent control group pretest-posttest design was used. The sample consisted of 50 office workers who were identified as having low levels of physical activity according to the International Physical Activity Questionnaire (IPAQ Research Committee, 2005). The participants were recruited from two companies in Seoul. Of the 50 participants, 26 were assigned to the non-equivalent experimental group and 24 to the control group. The walking program consisted of six didactic sessions via e-mail, two individual telecoaching sessions and three support group meetings over ten weeks. Data were analyzed using SPSS 17.0 program. Results: The non-equivalent experimental group reported significantly higher posttest scores in walking activities and adhering to the walking protocol than the control group. There were no differences in reported self-efficacy, outcome expectations, body mass index and blood pressure between the two groups. Conclusion: These findings indicate that a walking program based on social cognitive theory is effective in increasing physical activities for office workers.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제16권5호
• /
• pp.1687-1707
• /
• 2022

With the development of multiuser online meetings, more group-oriented technologies and applications for instance collaborative work are becoming increasingly important. Authenticated Group Key Agreement (AGKA) schemes provide a shared group key for users with after their identities are confirmed to guarantee the confidentiality and integrity of group communications. On the basis of the Public Key Cryptography (PKC) system used, AGKA can be classified as Public Key Infrastructure-based, Identity-based, and Certificateless. Because the latter type can solve the certificate management overhead and the key escrow problems of the first two types, Certificateless-AGKA (CL-AGKA) protocols have become a popular area of research. However, most CL-AGKA protocols are vulnerable to Public Key Replacement Attacks (PKRA) due to the lack of public key authentication. In the present work, we present a CL-AGKA scheme that can resist PKRA in order to solve impersonation attacks caused by those attacks. Beyond security, improving scheme efficiency is another direction for AGKA research. To reduce the communication and computation cost, we present a scheme with only one round of information interaction and construct a CL-AGKA scheme replacing the bilinear pairing with elliptic curve cryptography. Therefore, our scheme has good applicability to communication environments with limited bandwidth and computing capabilities.