• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.539-545
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• 2013

Although individual-level factors (e.g., attitudes, personality) have long been associated with day-to-day attendance decisions, increasingly researchers have recognized "the social nature of attendance dynamics and their susceptibility to social control (Johns, 2008)." Implications of this social approach for research would be to focus attention on the causes and effects of absence culture (i.e., absence-related perceptions, beliefs, values), and the effects of absence culture on individual and group attendance within social units. Construction projects typically require workers to work in teams or crews on highly interdependent projects, and, thus, are particularly relevant contexts to study absence culture. In this paper we apply a system dynamics (SD) model to study absence culture by utilizing the advantages of SD in capturing a feedback process and state changes. We were particularly interested in: (a) the awareness of social norms within construction crews that pertained to attendance, (b) the interplay between formal attendance rules (policy) and these social norms, and (c) how these sources of influence affected the decision-making process of construction crew members. We expect that the results of this work will help construction organizations evaluate (or re-consider) the effects of their attendance control policies (e.g., timing, strength, and frequency) within a social context. Moreover, our findings suggest that the key to reducing excessive absences might be to invest time in influencing absence culture directly rather than imposing frequent and strict regulations - which, in turn, may inadvertently fortify a culture that works against the organization's interests.

• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.359-366
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• 2013

Although many research efforts have been conducted to address the effect of crew members' work skills (e.g., technical and planning skills) on work performance (e.g., work duration and quality) in construction projects, the relationship between skill and performance has generated a great deal of controversy in the field of management (Inkpen and Crossan 1995). This controversy can lead to under- or over-estimations of the overall project schedule, and can make it difficult for project managers to implement appropriate managerial policies for enhancing project performance. To address this issue, the following aspects need to be considered: (a) work performances are determined not only by individual-level work skill but also by the group-level work skill affected by work team members, each member's role, and any working behavior pattern; (b) work planning has significant effects on to what extent work skill enhances performance; and (c) different types of activities in construction require different types of work, skill, and team composition. This research, therefore, develops a system dynamics (SD) model to analyze the effects of both individual-and group-level (i.e., multi-level) skill on performances by utilizing the advantages of SD in capturing a feedback process and state changes, especially in human factors (e.g., attitude, ability, and behavior). The model incorporates: (a) a multi-level skill evolution and relevant behavior development mechanism within a work group; (b) the interaction among work planning, a crew's skill-learning, skill manifestation, and performances; and (c) the different work characteristics of each activity. This model can be utilized to implement appropriate work planning (e.g., work scope and work schedule) and crew management policies (e.g., work team composition and decision of each worker's role) with an awareness of crew's skill and work performance. Understanding the different characteristics of each activity can also support project managers in applying strategic work planning and crew management for a corresponding activity, which may enhance each activity's performance, as well as the overall project performance.

• 한국초등과학교육학회지:초등과학교육
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• 제40권4호
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• pp.460-479
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• 2021

COVID-19 팬데믹의 위기는 전 세계적으로 교육 시스템에 큰 변화를 초래하였다. 우리나라에서도 COVID-19로 인한 사회적 거리두기 정책에 따라 갑작스럽게 비대면 수업으로 전환되었다. 준비 없는 비대면 수업으로 인해 초등학교 현장에서 발생하는 문제들로 볼 때 이와 관련된 연구가 필요한 상황이다. 본 연구는 초등교사가 인식하는 비대면 수업에서 과학교육의 목표와 방법, 과학탐구활동을 포함한 비대면 수업에서 발생한 문제와 초등교사의 대응, 비대면 수업 경험 후 비대면수업의 장단점과 교사의 역할에 대한 초등교사의 인식을 알아보고자 한다. 온라인 콘텐츠 활용 수업과 온라인 실시간 쌍방향 수업을 포함하는 온라인 비대면 수업을 시행한 초등교사를 대상으로 설문조사(153명)와 포커스 인터뷰(9명)를 실시하였다. 연구 결과에서 3가지 결론과 제안점을 도출하였다. 첫째, 초등교사들은 온라인 비대면 수업에서 비대면 방식에 따라 일방향 강의와 쌍방향 강의를 하였다. 온라인 비대면 수업에서 조사나 토론 등 강의 외의 수업방법을 활용하기 위해서는 교사들의 디지털 리터러시를 높일 필요가 있다. 둘째, 초등교사들은 비대면 수업에서 과학탐구활동의 어려움으로 현장 피드백의 어려움, 준비물 확보의 어려움, 안전 확보의 어려움을 인식하였다. 개인 실험을 위한 실험 꾸러미와 실험 영상을 제공하고 온라인에서 교사-학생, 학생-학생 간 협동적 논의와 피드백을 통해서 어려움을 극복할 수 있다. 셋째, 초등교사들은 비대면 수업의 장점으로 IT 기기를 사용하는 다양한 형태의 수업이 가능하고 개별화된 학습이 가능하다고 인식하였다. 단점으로는 탐구활동이나 협동학습과 같은 대면 기반 수업이 어렵고, 학생의 이해 정도를 알 수 없어서 피드백이 어려우며, 학생간의 상호작용이 어렵고, 학습 격차가 벌어진다고 인식하였다.

• 대한간호학회지
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• 제30권5호
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• pp.1133-1144
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• 2000

This study was conducted to evaluate the effects of the program for the autistic children which was designed to promote mother-child attachment. The subjects of this study were consisted of 11 pairs of mother and child( 7 for participant group:PG, 4 for non-participant group: NPG), who were diagnosed as Pervasive Developmental Disorder. The intervention was consisted with play activity centered mother-child interaction, educational activity for mothers, lecture, video-feedback, and supports. The main data were collected by video-taping and analyzed by Wilcoxon Rank Sign Test, and Content Analysis. The results obtained were as follows, 1. Before the program, there were no significant group differences on the children's and the mother's characteristics. After the program, total score on the attachment of PG was higher than that of NPG, but not significant. Only proximity-seeking behaviors and contact-maintaining behaviors were higher significantly(p<.05). Then the characteristics on contact- maintaining behaviors of PG were lasting longer and reciprocal than those of NPG. 2. After the program, the score on mother's nurturing behavior of PG was significantly more increased. The mother's behaviors to her child of PG became more child- centered, positively responsive, expressive supportively. But there were pretty big individual difference. It can be concluded that Mother-child Attachment Promotion Program is effective. Thus it can be recommended to be a early intervention model for autistic children.

• 컴퓨터교육학회논문지
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• 제6권3호
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• pp.99-108
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• 2003

본 논문은 VOD(Video On Demand) 기반 온라인 교육 시스템의 한계점들을 분석하고 이에 대한 대안으로 e- Learning 표준에 기초한 EOD(Education On Demand) 시스템의 디자인과 구현에 대해 기술한다. EOD 시스템은 XML로 표현되는 메타 정보와 컴포넌트 기술을 사용하여 학습 컨텐츠 라이프사이클 전반에 적용되는 저작 도구, 컨텐츠 서버, 학습 정책 시스템 그리고 뷰어로 구성된다. 구성요소간의 모든 정보 교환은 SCORM 표준에 기반한 메타 정보로 표현되어 효과적인 컨텐츠 관리와 자동화를 가능하게 한다. 또한 학습자의 상호작용 및 피드백 정보를 통합 관리하여 학습 정책 시스템을 통해 개별 학습자에게 맞추어진 학습 지도를 제공 할 수 있다. 이러한 EOD 시스템을 통해 단순한 컨텐츠 제공을 넘어선 발전된 형태의 온라인 교육 시스템에 대해 고찰해 본다.

• 경영과정보연구
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• 제2권
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• pp.209-235
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• 1998

Traditional cost system is distorted due to the using unit-based measure. It is being criticized that it do a poor job of attributing the expenses of support resources to the production and sales of individual product. Activity Based Cost System expend the range of second-stage cost assignment drivers beyond the traditional measures of labor and machine times, units produced, and material quantities to allow for drivers that measure the amount of batch-level, product-sustaining, and facility-sustaining activities performed. It is a resources consumption model of organization, not just a more complex cost accounting of cost allocation system. This paper proposes a enterprise resource planning by activity based management. To effective performance system for company that want to be setting competitive levels, the information systems must support a fast moving, rapidly changing. Activity based management is a process of accumulating and tracing cost and performance da to a firm's activities and providing feedback of actual results against the planned cost to initiate corrective action where required. Therefore this system provides a highly powerful decision-making tool. To construct this system, we need Enterprise Resource Planning System. Since ERP is designed around the idea that rapid change and a degree of unhandled change is normal, it allows driving the customer's rapidly needs much deeper through the business cycle.

• 보건행정학회지
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• 제11권3호
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• pp.1-30
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• 2001

This study was conducted to evaluate the effectiveness of team system at university hospitals in Korea. Data were collected from administrative and medical support workers at 4 university hospitals through the self-administered questionnaires and analyzed using frequency analysis, t-test, and oneway ANOVA. The results of this study are as follows. First, teams with higher team management characteristics show higher level of quality of work life and performance effectiveness. Second, teams which consist of members with variety background and skills show higher level of quality of work life and performance effectiveness. Third, team which have the higher autonomy, technology variety, job significance, and feedback show higher team effectiveness. Fourth, team which have team leaders with higher leadership score show higher level of quality of work life and performance effectiveness. Fifth, there are differences in team effectiveness in terms of sicio- demographic variables such as average age, position, and tenure of team members, length of team system, and team size. Sixth, the job autonomy of team members and the leadership of team managers have significant effects on the quality of work life variables. Seventh, the leadership of team leaders, job autonomy of members, and individual contact between team managers and members have significant effects on the team performance variables. In conclusion, in order to increase the effectiveness of team system in university hospitals, it is required to consider the characteristics of team management, diversity of team members, the autonomy of team members, the leadership of team manager, and the socio-demographic factors of team members.

• 천문학회보
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• 제40권2호
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• pp.37.1-37.1
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• 2015

It is suggested that relativistic jets associated with active galactic nuclei (AGNs) can have great impacts on the evolution of the host galaxy. However, the physical properties of AGN jets including the formation mechanism are not well known to date, and hence the AGN feedback on the host galaxy is yet poorly understood. OVV 1633+382 as a highly variable AGN source (a.k.a. blazer) with a compact core and very well developed jet components is an excellent laboratory to study the jet formation mechanism of radio-loud AGN. Near 2002, a major flare was reported at mm wavelength with a dramatic increase of the flux, which is likely to be followed by a dense and bright outflow. In order to probe the evolution of the innermost region of this radio-loud AGN, we have monitored using the Very Large Baseline Array (VLBA) and the Effelsberg 100m single-dish radio telescope in 12 epochs from 2002 and 2005. The observations were conducted at 22, 43 and 86 GHz in full polarization mode. In this work, we present the intensity and spectral index maps at 22 and 43 GHz from our monitoring observations. We probe the kinematics and geometry of individual jet components to discuss the evolution of the jet.

• 가정과삶의질연구
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• 제26권1호
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• pp.137-147
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• 2008

This study aimed to explore the plausible application of Coaching in the major of family resource management. For this purpose, first, this study reviewed the historical background of the coaching. In the contents, the concepts and principles of coaching were identified. Second, The recent application of coaching to the various areas such as finns, centers, occupation and the academical fields in Korea as well other countries were investigated. Finally, this study connected the nature and emphasis of the family resource management with the philosophy of coaching, which focuses on the internal strength of his/their own change and development in an/a individual/organization. Also, the process of family resource management and coaching models which were regarded as the similar ones in the phases consisted of situation perception, exploring alternatives, planning, implementing and feedback. On the basis of these contexts, this study suggested the plausible classes applied coaching which are able to be introduced in the under-graduated and graduated courses.

• 한국산학기술학회논문지
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• 제11권2호
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• pp.525-531
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• 2010

본 논문에서는 교육현장에서 간편하게 활용할 수 있는 SMS를 이용한 모바일 퀴즈 시스템을 개발하였다. 본 시스템은 즉각적으로 학생들에게는 퀴즈 결과에 대한 SMS 개별통보를, 교수자에게는 성적 통계를 제공한다. 실제 대학교육 현장에서의 시험운용을 통해, 본 시스템이, 학생들에게는 강의에 대한 흥미를 유발하고 몰입도를 높이며 교수자에게는 강의 수준을 즉각적으로 적절히 조절할 수 있는 교육 수단을 제공하여, 효과적인 교육도구로 활용될 수 있을 것으로 기대된다.