• Journal of Families and Better Life
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• v.31 no.4
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• pp.1-14
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• 2013

The current study examined the ability to predict Gottman's four dysfunctional communication behaviors during marital arguments based on the level of surface and core problems in marriage. Core problems were composed of three factors: caring, power, and commitment problems. A self-report questionnaire was administered to 182 married women residing in Busan. The results of multiple regression analyses revealed that a woman's degree of criticism was predicted by surface and caring problems when controlling for the other variables. The degree of contempt was predicted by a commitment problem as well as surface and caring problems. Defensiveness was determined only by a commitment problem, while stonewalling was determined only by a power problem. Overall, these results showed the importance of core problems in understanding the causes of the four dysfunctional communication behaviors - especially contempt - and suggested that additional attention should be given to a commitment problem as a contributor to the expression of contempt and defensiveness.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.14 no.4
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• pp.412-419
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• 2007

Purpose: This study was done to analyze core competencies affecting critical thinking ability of student nurses. Core competencies investigated in this study were problem solving ability, communication ability and self-directed learning ability. Method: Data were collected from a convenience sample of 322 student nurses in 2 provinces during the period from May 21 to June 8, 2007. Critical thinking, problem solving ability, communication ability and self-directed learning ability were measured using the Disposition towards Critical Thinking Scale by Park(1999-a) and the Core Competencies Scale by Lee(2003). Descriptive statistics and correlation coefficients with the SPSS WIN 12.0 program were used to analyze the data. Results: There were significant differences in the critical thinking according to grade, type of high school, experience with PBL, preference for lecture-based learning, preference for discussion and perceived logicality. The score for critical thinking showed significantly positive correlations with scores for problem solving ability(r=0.54, p=0.00), communication ability(r=0.56, p=0.00) and self-directed learning ability(r=0.54, p=0.00). Conclusion: The results of this study suggest that problem solving ability, communication ability and self-directed learning ability are significant factors affecting critical thinking in student nurses.

• Journal of Industrial Convergence
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• v.21 no.10
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• pp.159-166
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• 2023

This study is a descriptive research study to confirm the mediating effect of Problem-Solving Skills in the relationship between Confidence in Performing Core Nursing Skills and Clinical Performance of nursing college students. Participants included 211 nursing college students from S university in D city. Data was collected from August 14 to August 18, 2023 using a self-report questionnaires. The collected data were analyzed by descriptive statistics, Pearson's correlation coefficient, sem function and sobel function using the R.4.2.2 program. In this study, it was found that there was a significant positive correlation between the Confidence in Performing Core Nursing Skills, Problem-Solving Skills, and Clinical Performance, and it was confirmed that Problem-Solving Skills partially mediated the relationship between onfidence in Performing Core Nursing Skills and Clinical Performance. Therefore, it is suggested that Performing Core Nursing Skills and Problem-Solving Skills should be improved in order to improve the Clinical Performance of nursing college students.

• The Mathematical Education
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• v.54 no.1
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• pp.65-81
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• 2015

The purpose of this study is to investigate the international trends of how the core competencies are reflected in mathematics curriculum, and to find the implications for the revision of Korean mathematics curriculum. For this purpose, the curriculum of the 9 countries including the U.S., Canada(Ontario), England, Australia, Poland, Singapore, China, Taiwan, and Hong Kong were thoroughly reviewed. It was found that a variety of core competencies were reflected in mathematics curricula in the 9 countries such as problem solving, reasoning, communication, mathematical knowledge and skills, selection and use of tools, critical thinking, connection, modelling, application of strategies, mathematical thinking, representation, creativity, utilization of information, and reflection etc. Especially the four most common core competencies (problem solving, reasoning, communication, and creativity) were further analyzed to identify their sub components. Consequently, it was recommended that new mathematics curriculum should consider reflecting various core competencies beyond problem solving, reasoning, and communication, and these core competencies are supposed to combine with mathematics contents to increase their feasibility. Finally considering the fact that software education is getting greater attention in the new curriculum, it is necessary to incorporate computational thinking into mathematics curriculum.

• Journal of Korean society of Dental Hygiene
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• v.21 no.2
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• pp.109-118
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• 2021

Objectives: This study aimed to investigate the association between interpersonal relationships and the 4C core competencies of dental hygiene students. It also examined how interpersonal competence can be enhanced by the development and application of programs so that the 4C core competencies of university students can be improved. Methods: A survey was conducted from March to May 2019 on students from the Department of dental hygiene in Busan, South Korea, and 177 valid responses were analyzed. The general characteristics of the students were calculated using frequency and percentage, and their degree of 4C core competencies and interpersonal abilities were expressed as means (±standard deviation). Multiple regression analysis was used to analyze the effects of interpersonal competence on the 4C core competencies. Results: The findings revealed the factors affecting the 4C core competencies as; (a) communication ability was affected by interpersonal cognition and confidence building; (b) critical thinking ability was affected by person-oriented, self-expression, and confidence building; (c) creative problem-solving ability was affected by self-confidence, person-orientation, self-expression, and confidence building, and (d) cooperative self-efficacy was affected by person-oriented and confidence building. Conclusions: Based on the above findings, it is necessary to develop systematic program items and education systems that can effectively develop interpersonal competency, and thereby improve 4C core competencies among students.

• Journal of Korean Society of Rural Planning
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• v.5 no.2 s.10
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• pp.14-23
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• 1999

This studys concerns with a critical issues of urban and rural integration for rurban development. Todays, many of urban-rural integrated cities are confronted with the negative effects of administrative boundary integration. The first problem is induced from the developmental gaps and different residential demands between the core-city and peripheral-county. The second problem is social-economic and administrative unification costs neglected. The third problem is the environmental pollutions and degradations in peripheral-county by rapid urbanization. The forth problem is the inequality of the public services and regional investments in the urban-rural Integrated cities. The fifth problem is the administrative relation and financial distribution between core-city and residual province when the urban-rural integrated core-city becomes large urban city. The results of the questionnaire analysis as follows. The first point, the preference of administrative boundary integration is different in intra-areas of urban-rural integrated county by it's location. The second point, the diversity of preference of residents depends on theirs job, age, resdential period, education and income level. So, administrative boundary integration must consider the many important factors which affect the socio-economic situations between the core-city and peripheral-county. In conclusion, residents' preference for the admistrative boundary integration depends on their situation without rational approach for macro regional development. In this contexts, comprehensive approach for the urban-rural administrative boundary integration is needed in consistent with rapid change of local government's functions.

• Journal of the Korean Mathematical Society
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• v.45 no.3
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• pp.871-881
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• 2008

In this paper, we study the core stability of the dominating set game which has arisen from the cost allocation problem related to domination problem on graphs. Let G be a graph whose neighborhood matrix is balanced. Applying duality theory of linear programming and graph theory, we prove that the dominating set game corresponding to G has the stable core if and only if every vertex belongs to a maximum 2-packing in G. We also show that for dominating set games corresponding to G, the core is stable if it is large, the game is extendable, or the game is exact. In fact, the core being large, the game being extendable and the game being exact are shown to be equivalent.

• Journal of Engineering Education Research
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• v.26 no.1
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• pp.20-26
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• 2023

In this study, as a competency strengthening program to support learner-centered education, we developed the 'Capstone-design competency Program' for the purpose of cultivating the 4C skills and problem-solving ability required as core competencies of the 21st century. The program was based on the project method, and strategies were derived and materialized for each step through core competency analysis. Then, the validity was confirmed through the implementation of the program. As a result of the implementation of the program, it was confirmed that this program was effective in cultivating the core competencies of college students. In addition, it was confirmed that learners showed results such as specific reflection on core competencies, changes in perspective, and action plans, so that the possibility of actual application was high.

• Nuclear Engineering and Technology
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• v.49 no.6
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• pp.1326-1338
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• 2017

The continuous energy Monte Carlo neutron transport code, MC21, was coupled to the CTF subchannel thermal-hydraulics code using a combination of Consortium for Advanced Simulation of Light Water Reactors (CASL) tools and in-house Python scripts. An MC21/CTF solution for VERA Core Physics Benchmark Progression Problem 6 demonstrated good agreement with MC21/COBRA-IE and VERA solutions. The MC21/CTF solution for VERA Core Physics Benchmark Progression Problem 7, Watts Bar Unit 1 at beginning of cycle hot full power equilibrium xenon conditions, is the first published coupled Monte Carlo neutronics/subchannel T-H solution for this problem. MC21/CTF predicted a critical boron concentration of 854.5 ppm, yielding a critical eigenvalue of $0.99994{\pm}6.8E-6$ (95% confidence interval). Excellent agreement with a VERA solution of Problem 7 was also demonstrated for integral and local power and temperature parameters.

• Journal of Magnetics
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• v.17 no.1
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• pp.51-55
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• 2012

This paper presents an eddy current loss analysis for a transverse flux rotary machine (TFRM) with laminated stator cores, which consist of inner and outer cores whose laminated directions are perpendicular to each other. Although the TFRM is laminated to reduce eddy current losses, it still exhibits rapidly increasing core losses as the frequency increases. To solve this problem, slits are introduced to the stator outer core. 3-dimensional finite element analysis (3D FEA) based on the T-${\Omega}$ formulation is used to solve the eddy-current problem for a various numbers of slits in the nonlinear lamination core. The effects of the slits are confirmed using experiment data and 3D FEA results.