• Journal of the Korean Society for Aviation and Aeronautics
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• v.31 no.1
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• pp.118-132
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• 2023

This study aimed to analyze the relationship between the learning perception of aviation service subjects using role play on the interpersonal competence, learning satisfaction, and learning outcomes of college students majoring in aviation service. A survey was conducted targeting 217 university students majoring in aviation service who are enrolled in universities in the metropolitan area and Chungcheong area and have experience in class using role play. In addition, the hypothesis is verified using the structural equation model. Among the perceptions of role play classes experienced by university students majoring in aviation service, 'inter-dependency' was found to have a positive (+) effect on all sub-factors of interpersonal competence. And 'usefulness' confirmed the positive (+) influence relationship with 'temperament for others' and 'communication' except for 'relationship promotion' of interpersonal ability. Among sub-factor of interpersonal competence, it is confirmed that only the factors of 'temperament for others' and 'communication' had an effect on learning satisfaction. And it is proved that learning satisfaction is an important determinant of learning outcomes. Therefore, this study is expected to serve as a basis for deriving an efficient and optimal learning method for practical subjects in aviation service majors.

• IMMUNE NETWORK
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• v.21 no.3
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• pp.21.1-21.22
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• 2021

Myeloid-derived suppressor cells (MDSCs) have strong immunosuppressive activity and are morphologically similar to conventional monocytes and granulocytes. The development and classification of these cells have, however, been controversial. The activation network of MDSCs is relatively complex, and their mechanism of action is poorly understood, creating an avenue for further research. In recent years, MDSCs have been found to play an important role in immune regulation and in effectively inhibiting the activity of effector lymphocytes. Under certain conditions, particularly in the case of tissue damage or inflammation, MDSCs play a leading role in the immune response of the central nervous system. In cancer, however, this can lead to tumor immune evasion and the development of related diseases. Under cancerous conditions, tumors often alter bone marrow formation, thus affecting progenitor cell differentiation, and ultimately, MDSC accumulation. MDSCs are important contributors to tumor progression and play a key role in promoting tumor growth and metastasis, and even reduce the efficacy of immunotherapy. Currently, a number of studies have demonstrated that MDSCs play a key regulatory role in many clinical diseases. In light of these studies, this review discusses the origin of MDSCs, the mechanisms underlying their activation, their role in a variety of clinical diseases, and their function in immune response regulation.

• Journal of dental hygiene science
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• v.18 no.1
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• pp.50-59
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• 2018

The purpose of this study was to develop a motivational interviewing (MI) training program to improve competency in communication and to effect the evaluated changes that would occur in dental students' counseling techniques as result of the training in the program. The study proceeded through the program via role-play practice, which was explained effectively during the MI program training process. A convenience sample of 43 fourth-year dental hygiene students was recruited. Twenty-two students were randomly assigned to the intervention group and 21 to the control group in the order of recruitment. The theoretical lecture was delivered over 3 hours and the practice was done in parallel by applying cases occurring in clinic settings. The practice was technical training, partner practice, and small group practice. The intervention group received three hour MI lecture while the control group received no lecture. Evaluation through role-play practice was separated according to "researcher's viewpoint," "counselor's role viewpoint," and "patient's role viewpoint." The results of the analysis showed that the intervention group had higher MI skills and ability than the control group. Furthermore, program participants showed positive impressions to the MI training program. The use of coaching sessions improved the MI techniques and counseling skills of dental hygiene students learning MI. The effect of the application of the MI training program was that the MI training improved counseling skills and interviewing abilities. Moreover, continuous training and feedback enhanced MI techniques and core skills. Training using lectures in parallel with practice rather than education through theory alone improved students' techniques. Application of role play through the combined method of the MI program was confirmed by an effective training method.

• Korean Journal of Childcare and Education
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• v.12 no.2
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• pp.167-182
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• 2016

This study examined the effects of fathers' play participation on young children's social competence and self-regulation. The subjects consisted of 180 fathers with children at ages between 4-7 years old from 2 preschools and 3 kindergartens located in Y city in Gyeonggi province. The analyses used for this study included the t-test and multiple regression analysis. The main findings are as follows. First, fathers' play participation was not different by sociodemographic characteristics such as fathers' age, educational level, and job. Second, fathers' participation in functional play, role play, and constructive play was positively related to social activator, reassurance, and cooperation among subscales on children's social competence. Also, fathers' participation in games was negatively related to reassurance among children and positively related to hypersensitivity among children. Third, fathers' participation in role play and functional play was positively related to children's self-monitoring and self-control. These findings suggest emphasizing fathers' play participation to improve children's social competence and children's self-regulation, and it can be helpful to underline fathers' education and to develop programs for fathers' play.

• Korean Journal of Childcare and Education
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• v.6 no.2
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• pp.83-115
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• 2010

The purpose of this study is to reveal the insights that teachers has learned through developing preschooler's classroom into field-trip-oriented ones with role play areas. The data of this study was collected from participatory observation and in-depth interviews, which included videos, photos, teachers' journal, descriptive questionnaire, and interview records. The whole process of organizing role-play oriented class was composed of four steps: activities before the trip, activities on-the-spot, activities after the trip, and its evaluation. Firstly, activities before the trip were making the lists of questions, deciding children who ask the questions, making rules on the trip, understanding the purpose of the trip. Secondly, on-the-spot activities included having a tour of the place and asking the questions. Thirdly, activities after the trip was constructing the classroom into small real world with various sections. This required the teachers to reflect the field trips, make plans how to construct, prepare for the data, and furnish the classroom with role-play areas. In the process of furnishing the classroom with small real world, the field trips played a big role as the learning opportunities for language development, and keeping public rules.

• Women's Health Nursing
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• v.28 no.4
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• pp.317-328
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• 2022

Purpose: This study aimed to develop an emotive role-play program for nursing students focusing on high-risk pregnancy and analyze its effects on communication skills, clinical performance, and emotional intelligence. Methods: A quasi-experimental nonequivalent comparison group design was adopted with 83 nursing students (experimental group, 45; comparison group, 38) who participated voluntarily in an extracurricular program. The preliminary survey was conducted on November 3 and November 4, 2020, and the follow-up survey was conducted on November 12, 2020, for the comparison group and on November 27, 2020, for the experimental group. A program that included five role-play scenarios related to induced labor, preeclampsia, premature rupture of membranes, preterm labor, and infertility was developed by a group of experts and presented to the experimental group over 11 total hours across 3 days. Each student participated in a role-play scenario as a patient, family member, or nurse and observed three other scenarios. The comparison group received a workbook after the follow-up evaluation. The independent t-test was performed to analyze changes in communication skills, clinical performance, and emotional intelligence. Results: Communication skills (t=1.84, p=.035) and clinical performance (t=2.75, p=.004) significantly increased in the experimental group compared to the comparison group. A significant difference was not observed between the experimental and comparison groups for emotional intelligence (t=1.36, p=.088). Conclusion: The emotive role-play program concerning high-risk pregnancy was effective in improving nursing students' communication skills and clinical performance and can be used in nursing education related to high-risk pregnancy and childbirth.

• Journal of the korean academy of Pediatric Dentistry
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• v.42 no.1
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• pp.1-9
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• 2015

This study was conducted for the purpose of providing basic data that aims to develop the clinical practice education program and improve satisfaction for clerkship by evaluating the satisfaction of students who participated in learning using role-play in the clerkship of the department of pediatric dentistry. 85 senior dental students participated in this study. The students were divided into 17 groups and randomly performed role-plays in their role. After each role-play, a questionnaire designed to evaluate students' satisfaction on interest and appropriacy and satisfaction on usefulness towards role-play were completed by 77 students. The mean score of total satisfaction was 3.38 on a 5 point Likert scale. The mean score satisfaction on interest and appropriacy was 3.99 and the mean score satisfaction on usefulness was 3.79. The satisfaction score in the role group of parents was the highest and there was a significant difference in mean scores by the role groups (p < 0.05). Students evaluated the role-play as an interesting and useful educational tool in clerkship. It is necessary to undergo further trials and complement programs to upgrade the quality of dental clerkship.

• Physical Therapy Korea
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• v.3 no.2
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• pp.84-94
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• 1996

This paper reviews physiological changes in the nervous system of patients with hemiparesis that may contribute to muscle weakness. The discussion includes the important role that alterations in the physiology of motor units, notably changes in firing rates and muscle fiber atrophy, play in the manifestation of muscle weakeness. This role is compared with the lesser role that spasticity of the antagonist muscle group appears to play in determining the weakness of agonist muscles. The contribution of other factors that result in mechanical restraint of the agonist by the antagonist is discussed relative to muscle weakness in patients with hemiparesis. More studies on patients with hemiparesis are required to assess what role muscle strength training should play in rehabiliting patients after a stroke.

• Journal of the Korean Geographical Society
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• v.40 no.1 s.106
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• pp.109-125
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• 2005

The purpose of this study is to develop a role play instruction model to increase higher-order thinking abilities in geographical education. This study reviewed the references which included the contents of higher-order thinking abilities, and discussed the educational significance and application of role play instruction model. The developed role play instruction model was applied to four classes in high school in Korea. After applying the model, this study asked some question about the model to the students which engaged in this model. Higher-order thinking essentially means thinking that takes place in the higher-levels of the hierarchy of cognitive processing. Higher-order thinking abilities contain critical thinking abilities, creative thinking abilities, problem solving and decision making abilities, meta-cognition abilities. The role play instruction model is an effective method which can increase higher- order thinking abilities. The questioning to students which engaged in the class of applying to role play instruction model provides feedback about development instruction models to increase higher-order thinking abilities.

• Korean Journal of Child Studies
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• v.33 no.1
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• pp.93-109
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• 2012

The purpose of this study is to explore how children aged four, in institutional care, perceive and express basic emotions, such as happiness, sadness, anger, surprise, through a role play program using dolls. This study selected two children who were both aged four years old and are currently in child institutional care. The children were observed during six role play trials using dolls and were questioned after the trials. The results were : 1) The children aged four in institutional care best perceived and expressed the emotion of happiness. 2) The children aged four in institutional care were able to positively change their feelings of sadness and expressive behavior through the intimate relationships they formed with the researcher. 3) The children aged four in institutional care expressed the emotion of anger throughout the entire role play using dolls and were positively changed the instructions and coaching given by the researcher. 4) The children aged four in institutional care had the most difficulty in expressing the emotion of surprise. The results of this study could be used as basic data for creating a program intended to help children aged four in institutional care develop their emotions.