• 가정과삶의질연구
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• 제32권5호
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• pp.145-161
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• 2014

The purpose of this study examined the differences in work-family spillover process and domains in dual-earner couples with children, using a multidimensional measure of work-family spillover. The subjects of this study were 285 working couples with children. The research tool was questionnaires which consisted of general characteristics of the subjects and multidimensional measure of work-family spillover scale. For data analysis, factor analysis, Cronbach ${\alpha}$, t-test, and paired t-test were performed. Based on analysis of data using factor analysis, three-distinct work-family spillover process can be measured for both wife and husband, time interference, psychological distraction, and energy depletion and the multidimensional measure of work-family spillover is able to validly assess different domains of family life into which spillover occurs. The main results of this study were as following: First, there were significant differences in work-family spillover process according to sex. In work${\rightarrow}$family spillover, male more experienced negative time interference than female, on the other hand, in family${\rightarrow}$work spillover, female more experienced negative energy depletion than male. Second, there were significant differences in domains which work-family spillover occurs according to sex. Male more experienced negative work${\rightarrow}$family spillover than female in marital relations and parent-child relations domains while female more experienced negative family${\rightarrow}$work spillover than male in parent-child relations and home management domains. Third, there were significant differences between wife and husband in work-family spillover process. In work${\rightarrow}$family spillover, husband more experienced negative time interference than wife, on the other hand, in family${\rightarrow}$work spillover, wife more experienced negative energy depletion than husbands. Forth, there were significant differences between wife and husband in domains which work-family spillover occurs. Male more experienced negative work${\rightarrow}$family spillover than female in marital relations, parent-child relations, and leisure life domains. And while husband more experienced negative family${\rightarrow}$work spillover than wife in parent-child relations, wife more experienced negative family${\rightarrow}$work spillover than husband in home management domains.

• 정보보호학회논문지
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• 제26권2호
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• pp.405-413
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• 2016

본 논문에서는 선제 대응을 위한 의심 도메인 추론 방안을 제시한다. TLD Zone 파일과 WHOIS 정보를 이용하여 의심 도메인을 추론하며, 후보 도메인 탐색, 기계 학습, 의심 도메인 집단 추론의 세 과정으로 구성되어 있다. 첫 번째 과정에서는 씨앗 도메인과 동일한 네임 서버와 업데이트 시간을 가진 다른 도메인을 TLD Zone 파일로부터 추출하여 후보 도메인을 형성하며, 두 번째 과정에서는 후보 도메인의 WHOIS 정보를 정량화하여 유사한 집단끼리 군집화 한다. 마지막 과정에서는 씨앗 도메인을 포함하는 클러스터에 속한 도메인을 의심 도메인 집단으로 추론한다. 실험에서는 .COM과 .NET의 TLD Zone 파일을 사용하였으며, 10개의 알려진 악성 도메인을 씨앗 도메인으로 이용하였다. 실험 결과, 제안하는 방안은 55개의 도메인을 의심 도메인으로 추론하였으며, 그 중 52개는 적중하였다. F1은 0.91을 기록하였으며, 정밀도는 0.95을 보였다. 본 논문에서 제안하는 방안을 통해 악성 도메인을 추론하여 사전에 차단할 수 있을 것으로 기대한다.

• 한국과학교육학회지
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• 제18권4호
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• pp.539-544
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• 1998

교육 목표 영역으로 설정된 부분이 실제 각 단원, 소단원 그리고 수업 차시 목표에 균형있게 반영되었는지를 확인하기 위해 제 6차 과학과 교육과정에 의해 개발된 초등학교 자연과 생물 영역의 수업 목표를 교사용 지도서를 중심으로 분석하였다. 교육목표설정 영역은 인지적 영역, 탐구과정 영역, 수공적 기능 영역, 창의성 영역, 정의적 영역과 STS 영역 등 6개이다. 인지적 영역의 교육목표가 가장 많았으나, 창의성 영역에 해당하는 것은 하나도 없었다. 단원 목표와 소단원 목표에서는 인지적 영역, 탐구과정 영역, 정의 영역, 수공적 기능 영역, STS 영역 순으로 비중이 높았으나, 차시 수업 목표에서는 인지적 영역과 탐구 과정 영역이 대부분이었다. 목표 영역 중에서 인지적 영역과 탐구과정 영역을 제외하고는 대체로 단원, 소단원과 차시의 수업 목표의 연계성이 부족하였으며, 특히 정의적 영역에서는 대단원, 소단원, 차시 수준으로 갈수록 그 비중이 급속하게 낮아지는 것으로 나타났다. 교육 목표 설정 영역의 형식적인 구분보다는 교과서의 개발시 목표 영역의 일관성 있고, 균형 있는 반영을 고려해야 하며, 또한 목표 설정 영역의 특성을 고려한 적절한 안배가 요구된다.

• Molecules and Cells
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• 제19권2호
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• pp.246-255
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• 2005

Retroviral integrases insert viral DNA into target DNA. In this process they recognize their own DNA specifically via functional domains. In order to analyze these functional domains, we constructed six chimeric integrases by swapping domains between HIV-1 and HFV integrases, and two point mutants of HFV integrase. Chimeric integrases with the central domain of HIV-1 integrase had strand transfer and disintegration activities, in agreement with the idea that the central domain determines viral DNA specificity and has catalytic activity. On the other hand, chimeric integrases with the central domain of HFV integrase did not have any enzymatic activity apart from FFH that had weak disintegration activity, suggesting that the central domain of HFV integrase was defective catalytically or structurally. However, these inactive chimeras were efficiently complemented by the point mutants (D164A and E200A) of HFV integrase, indicating that the central domain of HFV integrase possesses potential enzymatic activity but is not able to recognize viral or target DNA without the help of its homologous N-terminal and C-terminal domains.

• 컴퓨터교육학회논문지
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• 제11권3호
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• pp.21-32
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• 2008

본 연구는 컴퓨터교육에서 초등학교 교사의 교수활동과 관련하여 나타나는 정의적 요소를 탐색하고 그것에 영향을 미치는 요인을 탐구하였다. 이를 위하여 개방형 질문지를 개발하고, 13명의 교사로부터 자료를 수집하였으며 이를 질적 연구 방법 및 절차에 따라 분석하였다. 분석 결과, 초등학교 교사들은 수업활동과 관련하여 감성, 태도, 자기효능감, 동기, 기대 등의 정의적 요소를 가지고 있었다. 이러한 요소들은 교수활동에 내적 혹은 외적으로 영향을 미치고 있음을 확인할 수 있었다. 따라서 본 연구는 초등학교 컴퓨터교육의 목표 성취를 위하여 인지적인 요소뿐만 아니라 교사의 정의적 요소도 매우 중요함을 드러내고자 하였다. 또한 컴퓨터교육에서 교사 및 학생의 정의적 요소와 관련된 후속 연구의 기초적인 정보를 제공하고자 하였다.

• 한국과학교육학회지
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• 제14권2호
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• pp.159-169
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• 1994

The purpose of this study was to establish the goals of Science Pedagogy as a subject curriculum. This study is served as the criterion for syllabus of teacher's university which instruct the preservice science teachers. To perform this study, by a premise of Science Pedagogy, the domains and the categories of science eduactional goals ware pursued by review of literature. In this study, the sources to establish science educational goals are national educational ideology, nature of science, interests and cognitive levels of children, and social demands. According to these sources, the domains of science educational goals are as follows; 1.cognitive domain 2.inquiry process domain 3.manual skills domain 4.creativiry domain 5.science attitude domain 6.S-T-S domain These six domains are essential to school science educational achievement. Therefore, these domains are surely reflected in the course of science preservice teacher's training. On the base of these domains of science educational goals, 1 general goal and 10 specific objectives of Science Pedagogy are proposed.

• 공학교육연구
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• 제18권3호
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• pp.13-23
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• 2015

This paper attempts to take an in-depth study of the importance of teams and their creativity according to changes of recent design paradigm in engineering and to draw conclusions of the sub-domains and their element extraction. For this purpose, theoretical consideration was reviewed to present the definition of creativity and its sub-domains and elements. Besides, the two steps of expert validation test were conducted to extract the definition of creativity and its sub-domains and elements. The team creativity is defined as a team ability to come up with fresh and useful ideas and to lead them to get meaningful results through cooperative interactions among team members to solve problems given to them based on each member's creativity. Totally, 4 subs -domains and 16 sub-elements were extracted to get to know their influence on the team creativity. This includes a team size, characteristics of team members, and a team structure in team organization domain. To evaluate team atmosphere, elements such as sensibility, fellowship, teamwork, reliability, autonomy and open minded feature are included. In the team activity domain, strategies for solving problems, activities for divergent thinking, activities for convergence thinking and team interaction are included. Also, the sub-domain for team management includes a task, process and conflict management.

• 한국수학교육학회지시리즈A:수학교육
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• 제57권1호
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• pp.55-74
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• 2018

The purpose of this study is first to examine the relative influence of each error source and to investigate the optimal measurement conditions to ensure satisfactory multiple reliability coefficients based on the teaching aptitude and personality test for pre-service teachers. Participants were 33 students enrolled in mathematics education in a graduate school of education located in the Seoul metropolitan area from 2013 to 2017. The main results were as follows. First, the estimated variance due to residual was highest, followed by nesting of items within domains, graduate students, interactions of graduate students with domains, and domains. Second, total 96 items, with 12 domains containing 8 items in each domain, with cut score of 598, and original 210 items, with 14 domains containing 15 items in each domain, with cut scores of 615 or 716 were optimal measurement conditions to reach acceptable reliability levels based on the joint consideration of dependability coefficients, cut score dependability coefficients, adjusted dependability coefficients, and standard errors of measurement. Third, larger deviations between the arithmetic mean and the cut score indicated higher reliability coefficients of the test results. Finally, this study suggests ways for practitioners to consider how to apply generalizability theory for criterion-referenced tests and how to develop future research based on limitations.

• 한국세라믹학회지
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• 제33권1호
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• pp.56-64
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• 1996

A large amount of papers about the cubic-to-tetragonal phase transition the ferroelectric domain structures of the BaTiO3 were already reported but there exist still some needs to observe the domain behaviors directly. In this study the domain structures of the tinned plates prepared from ta single crystal grown by the TSSG technique were observed using a polarizing microscope TE and X-ray topography. The spatial relation be-tween the orientation states of domains was investigated and the effects of external stresses and electric fields on the behaviors of ferroelectric and ferroelastic domains were studied. All the 90$^{\circ}$walls cut off in the crystal are the wedge shaped lamellar domains and all the straight boundaries in the observed domain patte군 can be interpreted as the head-to-tail 90$^{\circ}$walls. The irregular overlapped boundaries commonly observed by using a polarizing microscope and X-ray topography are complex combinations of well-known 90$^{\circ}$walls and are domain walls were predominant and were stabilized after surface polishing. In the paraelectric phase region the domain walls vanished but the residual surface strain patterns could be seen at the same positions of the stabilized 90$^{\circ}$a-a walls in the tetragonal phase region, These stabilized walls resulted from the surface strain had a memory effect in domain formation during the repeated phase transitions and could notr be affected by an external electtric field.

• Bulletin of the Korean Chemical Society
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• 제34권11호
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• pp.3312-3316
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• 2013

Single crystals of hexagonal graphenes were successfully grown on Cu foils using the atmospheric pressure chemical vapor deposition (CVD) method. We investigated the effects of reaction parameters, such as the growth temperature and annealing time, on the size, coverage, and density of graphene domains grown over Cu foil. The mean size of the graphene domains increased significantly with increases in both the growth temperature and annealing time, and similar phenomena were observed in graphene domains grown by low pressure CVD over Cu foil. From the comparison of micro Raman spectroscopy in the graphene films grown with different annealing times, we found that the nucleation and growth of the domains were strongly dependent on the annealing time and growth temperature. Therefore, we confirmed that when reaction time was same, the number of layers and the degree of defects in the synthesized graphene films both decreased as the annealing time increased.