• Korean System Dynamics Review
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• v.13 no.4
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• pp.33-55
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• 2012

The research is to identify important diffusion factors and their effects on green car diffusion process using system dynamics perspectives and a causal-loop analysis. Through a deep review on previous research, we have found the important factors of green car diffusion process. Price, driving range, network effect, recharge system, fuel cost had important facilitation on consumer attraction and green car diffusion. Based on the review, we have constructed a causal loop diagram explaining hybrid car diffusion process. We have found 3 important reinforcing loops in the causal loop diagram. Loop for learning & economies of scale(supply side), loop for network effect(consumer side), and loop for battery development(technology side) had most significant roles in the whole diffusion process. Through a deliberate analysis on the 3 causal loops, we have found meaningful results. First, there seems to exist a critical mass in the diffusion. Second, of the 3 loops, the battery technology had most significant role. Third, not consumer installed base but sales must be a standard to decide whether the critical mass is achieved or not. Based on these findings, several meaningful implications are suggested for the government and corporations related to the green car industries.

• Korean Parent-Child Health Journal
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• v.10 no.1
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• pp.3-12
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• 2007

Purpose: The purpose of this study was to test a KPAAT(Korean Parent As a Teacher Test) and provide a basic data to develop parent education program. Methods: This is a secondary analysis study using 103 preschool mothers who were chosen from 2 kindergarten and child care center located at Kyounki-Do. Results: 1) Subjects' child-rearing attitude was above average at the point of $2.86({\pm}\;.20)$. 2) 16 sub-dimension(response to question, permissive attitude of play, control, control of play, expectation about child, understanding about learning, support of learning, encouragement of thinking, provision of imaginary play opportunities, support of play, encouragement of accomplishment motivation, propriety of child-rearing, affectional support, fixed idea, confidence about education, limitation) and 6 factors(response to question, permission of play, control & limitation, evaluation & support about child, encouragement of academic accomplishment, facilitation of the development of creativity) were above 2.50 except ($2.24{\pm}\;.29$) sub-dimension. 3) There was no significant difference statistically according to subjects' general characteristics. Conclusion: From this study, KPAAT can be utilized later childhood period. And nurses need to help mothers to have sound child rearing attitude.

• PNF and Movement
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• v.12 no.2
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• pp.97-106
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• 2014

Purpose: The purpose of this study was to investigate changes in EEG through attention. Concentration training and performing tasks are important factors in the improvement of motor learning ability. Methods: In the experiment, 22 healthy people were divided into two groups: the trail making test (TMT) group and the computerized neurocognitive function test (CNT) group. A one-way Neuro Harmony M test to see whether there was a significant difference among the groups. Results: The TMT group showed a significant increase in ${\alpha}$ wave, ${\alpha}$ wave sequence, and ${\beta}$ wave sequence; however, there were no significant differences in SMR wave, SMR wave sequence, and ${\beta}$ wave. The CNT group showed increases in ${\alpha}$ wave, ${\alpha}$ wave sequence, SMR wave, SMR wave sequence, and ${\beta}$ wave sequence; however, there was no significant difference in ${\beta}$ wave. In EEGs before and after two performance tasks were changed, there were significant differences in ${\beta}$ wave, SMR wave, SMR wave sequence; however, there were no significant differences in ${\alpha}$ wave sequence, ${\beta}$ wave, and ${\beta}$ wave sequence. Conclusion: Attention training and concentration training offer feedback and repetition for constant stimulus and response. Moreover, attention training and concentration training can contribute to new studies and motivation by developing fast sensory and motor skills through acceptable visual and auditory stimulation.

• Journal of Korean Academic Society of Home Health Care Nursing
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• v.23 no.2
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• pp.147-154
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• 2016

Purpose: This study aimed to develop and apply simulation-based education, and to verify the effects of this type of education on nursing students' presence in education, systems thinking, and proactivity in problem solving. Method: Subjects were 69 senior college students recruited through convenient sampling. This study used a one-group pre-posttest quasi-experimental design. A structured survey was administered a week before and after provision of the simulation-based education once a week for 4 weeks. Data were analyzed using descriptive statistics and t-tests. Results: Teaching presence increased after the educational intervention; instructional design and organization, and aspect of direct facilitation subscales improved. Learning presence increased after the educational intervention; although cognitive presence did not change, emotional presence increased. With regard to emotional presence, perception and expression of one's emotional status increased, although emotional management did not change. Moreover, systems thinking increased. Among the subscales, team learning showed an increase after the educational intervention. However, there was no significant difference in proactivity in problem solving, although it showed an increase after the educational intervention. Conclusion: Based on the aforementioned study results, there is need to establish educational environments for qualitative teaching and learning presence, and devise strategies to increase learning effects with various teaching methods and type of content.

• The KIPS Transactions:PartB
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• v.8B no.5
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• pp.429-440
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• 2001

To achieve a computer tutor framework with high learning effects as well as practicality, the goal of this research has been set to developing an intelligent tutor for problem-solving in mathematics domain. The maine feature of the CyberTutor, a computer tutor developed in this research, is the facilitation of a learning environment interacting in accordance with the learners differing inferential capabilities and needs. The pedagogical information, the driving force of such an interactive learning, comprises of tutoring strategies used commonly in various domains such as phvsics and mathematics, in which the main contents of learning is the comprehension and the application of principles. These tutoring strategies are those of testing learners hypotheses test, providing hints, and generating explanations. We illustrate the feasibility and the behavior of our propose framework with a sample problem-solving learning in geometry. The proposed tutorial framework is an advancement from previous works in several aspects. Firstly, it is more practical since it supports handing of a wide range of problem types, including not only proof types but also finding-unkown tpes. Secondly, it is aimed at facilitating a personal tutor environment by adapting to learners of varying capabilities. Finally, learning effects are maximized by its tutorial dialogues which are derived from real-time problem-solving inference instead of from built-in procedures.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.3
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• pp.633-642
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• 2021

This study explores the online learning experiences of Chinese foreign students in Korea by using the CQR process and method. To gather data, researchers conducted online, in-depth interviews with 15 Chinese university students in Korea who were enrolled in the spring and fall semesters in 2020. After compiling the research, the data were segmented into four domains and 13 categories, with 36 subcategories identified from among foreign students' online learning experiences. The results show that Chinese students perceived the convenience of online classes and personalized learning as its strength, but considered lowered motivation and lack of concentration as weaknesses. Also, they experienced an increase in the amount of learning, spending more time studying online, using personal learning strategies, and getting help from friends and the university's online learning system. Moreover, they experienced difficulties related to class notifications, guidance, and interactions with the instructors. Foreign students studying in Korea need their instructor's facilitation in order to understand and participate in online classes, reinforcing a student's self-directed learning ability, and need appropriate guidance and support in terms of the online class environment.

• PNF and Movement
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• v.6 no.2
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• pp.39-50
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• 2008

Purpose : This article reviewed the advances in the understanding of the effect of motor rehabilitation and brain plasticity on functional recovery after CNS damage. Methods : This is literature study with Pubmed, Medline and Science journal. Results : The inability of CNS neurons to regenerate is largely associated with nonneuronal aspects of the CNS environment. Especially, this neuronal growth inhibition is mediated by myelin associated glycoprotein, olygodendrocyte-myelin glycoprotein, and NOGO. Enriched environment, motor learning, forced limb use have been utilized in scientific studies to promote functional reorganization and brain plasticity. Especially, enriched environment and motor enrichment may prime the brain to respond more adaptively to injury, in part by expressed neurotrophic factors. Conclusions : These reviews suggest that activity-induced neural plasticity occur in damaged brain areas in order to functional reorganization, where it could contribute to motor recovery, and represent a target for stroke rehabilitation.

• PNF and Movement
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• v.6 no.2
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• pp.31-38
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• 2008

Purpose: The purpose of this study were to overview the effect of exercise on neural plasticity and the proteins related to neural plasticity. Results: Exercise increased levels of BDNF(brain-derived neurotrophic factor), Insulin-like growth factor-I (IGF-I), Synapsin, Synaptophysin, VEGF(vascular endothelial growth factor) and other growth factors, stimulate neurogenesis, increase resistance to brain insult and improve learning and mental performance. These proteins improved synaptic plasticity by directly affecting synaptic structure and potentiating synaptic strength, and by strengthening the underlying systems that support plasticity including neurogenesis, metabolism and vascular function. Conclusion: Exercise-induced structural and functional change by these proteins can effect on functional movement, cognition in healthy and brain injured people and animals.

• Journal of the Korean Home Economics Association
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• v.35 no.1
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• pp.221-236
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• 1997

Koreans who put a high value on confucian ethics traditionally have considered sex problems as taboo. Being faced with western liberal and hedonic culture that comes with waves of industrialization our younger generation who has grown in cultural backgrounds of confucianism has had mental confusion. Due to higher standards of living physical growth has quickened but mental growth has not reached there instead. Because of lureand trouble which come from this problem related with sex this is considered as a social problem. In this research through judgement which the most effective way that can solve adolescence sex problems is systematic sex education teaching method for desirable sex education is presented asfollowing First some supplement and desirable direction of sex education were proposed through the analysis of eight currently using home economics texbooks. A lesson plan was proposed using CAI program which was developed by authors with assistance of professional computer programmers. The CAI program includes following curriculum contents: 1concepts of sex This study ultimately aimed to let students develop desirable attitude and perspective on value regarding adolescence and sex, For this goal of research another lesson plan was proposed fostering classroom group discussion.

• PNF and Movement
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• v.14 no.3
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• pp.237-244
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• 2016

Purpose: This case report examines the influence of proprioceptive neuromuscular facilitation (PNF) combined with a dynamic neuromuscular stabilization approach on balance in patients with cerebellar atrophy. Methods: The target subject of this case report was a 34-year-old woman who was informed of the purpose of this research and voluntarily agreed to participate in it. The case report conformed to research ethics based on the Helsinki Declaration. The target subject was confirmed to have cerebellar atrophy from an unknown cause in 2009 and was diagnosed with slight ataxia. At that time, she could carry out daily activities without physical therapy. On May 19, 2015, she suffered both a subdural hemorrhage (SDH) and subarachnoid hemorrhage (SAH) in a traffic accident. She was urgently moved to the emergency room and managed by nonsurgical treatment, and then, the cerebellar atrophy and ataxia gradually deteriorated. To evaluate the patient's balance capacity before and after intervention, the trunk impairment scale (TIS), trunk impairment scale (OLST) during eye-closing/opening, timed up and go test (TUG), and visual analogue scale (VAS) were conducted. The PNF intervention program was executed for 30 min, four times a week, for three weeks. Results: The TIS and OLST during eye-closing/opening were improved by as much as a point, by 8.15 s and 6.21 s, respectively, after applying the PNF program. TUG and VAS decreased by 1.33 s and 3 points, respectively, after intervention. According to the result, the OLST during eye-closing/opening and VAS improved remarkably in comparison with those before intervention. Conclusion: As the final result of the case report, PNF intervention combined with DNSA more effectively improved the static balance capacity, such as the OLST during eye-closing/opening and VAS, compared to the dynamic balance capacity. In addition, the intervention duration and period of the exercise program are recommended to be more than 1 h a day for four weeks considering the learning ability of a patient with cerebellar atrophy.