• Journal of the Speleological Society of Korea
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• no.92
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• pp.31-40
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• 2009

The purpose of this study was to revitalize management of Hapki-do gymnasium based on customer. The Subjects of this study were 264 persons who have trained Hapki-do. Also, subjects were chosen by convenience sampling method. Data were analized with SPSS 12.0 version for frequency and crosstab analysis. Following is the analysis result. First of all, it is necessary repairing facilities and operating systematic education program. Secondly, it is necessary a discriminatory education program. Further study on demand features of Hapkido gymnasiums will contribute to expand and to strengthen the base of Hapkido development. This will aid Hapkido to gain dominant position in the competition of martial arts and sports industry.

• Review of Culture and Economy
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• v.21 no.1
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• pp.3-20
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• 2018

This study investigates a comprehensive context between the vertical integration and concentration of Korean film market. The concentration of distribution and screening markets are result of industrial strategy to defend demand uncertainty and to pursue economies of scale. Major distributors are increasingly inclined to defend industrial risk by concentrating resources on blockbusters and bargaining power of the multiplex is getting strengthened by distribution competition to secure as many screens as possible. Vertically integrated multiplexes operate discriminatory preferential treatment to their affiliates, however, there is a difference in degree of discrimination between vertically integrated groups. Furthermore, it is difficult to exclude each other from the distribution competition in which the largest screen number has to be secured. It is difficult for multiplex only to pursue the interests of affiliates and make negative choices in screening performance. As the number of screening screens increases, the seat occupancy also increases. As a result, the polarization of the distribution and screening markets, including the screen monopoly, is a phenomenon that occurs commercial films centered markets and the unfair behavior of the vertically affiliated multiplex has a limited effect on the movie market.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.33 no.1
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• pp.16-23
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• 2022

Objectives: Early detection of developmental issues in infants and necessary intervention are important. To identify the comorbid conditions, a comprehensive evaluation is required. The study's objectives were to 1) generate scale items by identifying and eliciting concepts relevant to young children (12-71 months) with developmental delays, 2) develop a comprehensive screening tool for developmental delay and comorbid conditions, and 3) assess the tool's validity and cut-off. Methods: Multidisciplinary experts devised the "Infant Comprehensive Evaluation for Neurodevelopmental Delay (ICEND)," an assessment method that comes in two versions depending on the age of the child: 12-36 months and 37-71 months, through monthly seminars and focused group interviews. The ICEND is composed of three parts: risk factors, resilience factors, and clinical scales. In parts 1 and 2, there were 41 caretakers responded to the questionnaires. Part 3 involved clinicians evaluating ten subscales using 98 and 114 questionnaires for younger and older versions, respectively. The Child Behavior Checklist, Strengths and Difficulties Questionnaire, Infant-Toddler Social Emotional Assessment, and Korean Developmental Screening Test for Infants and Children were employed to analyze concurrent validity with the ICEND. The analyses were performed on both typical and high-risk infants to identify concurrent validity, reliability, and cut-off scores. Results: A total of 296 people participated in the study, with 57 of them being high-risk (19.2%). The Cronbach's alpha was positive (0.533-0.928). In the majority of domains, the ICEND demonstrated a fair discriminatory ability, with a sensitivity of 0.5-0.7 and specificity 0.7-0.9. Conclusion: The ICEND is reliable and valid, indicating its potential as an auxiliary tool for assessing neurodevelopmental delay and comorbid conditions in children aged 12-36 months and 37-71 months.

• Ecology and Resilient Infrastructure
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• v.10 no.4
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• pp.125-134
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• 2023

In order to develop a backtracking technique for turbidity measurement data without discriminatory characteristics, three turbidity backtracking techniques for predicting inflow turbidity of a stream were compared using real-time turbidity data measured at automatic water quality measurement points located upstream and downstream of the stream and the Py_STPS model. Three turbidity backtracking techniques were applied: 1) simple preservation method of turbidity load considering flow time, 2) a method of using the flow rate at the upstream boundary considering the flow time as the flow rate at the downstream boundary, 3) method of introducing internal reaction rate to reflect the behavior characteristics of turbidity-causing substances. As a result of applying the three backtracking models, it was confirmed that the backtracking technique that introduced the internal reaction rate had the best results.

• The Journal of the Korea Contents Association
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• v.20 no.8
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• pp.298-314
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• 2020

This study was conducted for the purpose of empirically analyzing the effects of the adolescents' relationships with major adults as the protection factors for their game addiction. Specifically, the discriminatory effects of adolescents' relationships with their parents, school teacher, and educational institute teachers on game addiction among elementary, middle, and high school students were compared. Analyzing the data from "2019 Korean Children and Youth Happiness Index" (N=7,454), it was found that adult relationships are significant factors explaining the level of game addiction even after controlling the influence of adolescents' demographic and social characteristics, game use behavior, and friend relationship factors. In the case of elementary school students, the relationship with their mothers reduces the risk of game addiction, while for middle and high school students, the relationship with fathers acts as a protection factor for game addiction. Meanwhile, the protection effects of the relationship between teenagers and school teachers on game addiction was found only in middle school students, and contrary to expectations, the relationship with the educational institute teacher did not have a significant impact on the game addiction of teenagers. Based on the above major research results, this study discussed on the development of programs and policies for the prevention and intervention of youth game addiction and provided suggestions for the follow-up research in the future.

• Clinical and Experimental Pediatrics
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• v.63 no.11
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• pp.438-446
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• 2020

Background: Most developmental screening tools in Korea are adopted from foreign tests. To ensure efficient screening of infants and children in Korea, a nationwide screening tool with high reliability and validity is needed. Purpose: This study aimed to independently develop, standardize, and validate the Korean Developmental Screening Test for Infants and Children (K-DST) for screening infants and children for neurodevelopmental disorders in Korea. Methods: The standardization and validation conducted in 2012-2014 of 3,284 subjects (4-71 months of age) resulted in the first edition of the K-DST. The restandardization and revalidation performed in 2015-2016 of 3.06 million attendees of the National Health Screening Program for Infants and Children resulted in the revised K-DST. We analyzed inter-item consistency and test-retest reliability for the reliability analysis. Regarding the validation of K-DST, we examined the construct validity, sensitivity and specificity, receiver operating characteristic curve analysis, and a criterion-related validity analysis. Results: We ultimately selected 8 questions in 6 developmental domains. For most age groups and each domain, internal consistency was 0.73-0.93 and test-retest reliability was 0.77-0.88. The revised K-DST had high discriminatory ability with a sensitivity of 0.833 and specificity of 0.979. The test supported construct validity by distinguishing between normal and neurodevelopmentally delayed groups. The language and cognition domain of the revised K-DST was highly correlated with the K-Bayley Scales of Infant Development-II's Mental Age Quotient (r=0.766, 0.739), while the gross and fine motor domains were highly correlated with Motor Age Quotient (r=0.695, 0.668), respectively. The Verbal Intelligence Quotient of Korean Wechsler Preschool and Primary Scales of Intelligence was highly correlated with the K-DST cognition and language domains (r=0.701, 0.770), as was the performance intelligence quotient with the fine motor domain (r=0.700). Conclusion: The K-DST is reliable and valid, suggesting its good potential as an effective screening tool for infants and children with neurodevelopmental disorders in Korea.

• Journal of Korea Entertainment Industry Association
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• v.13 no.5
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• pp.15-24
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• 2019

The purpose of the study is to present implications for the management performance and improvement of enterprises through the study of the simplicity of meals, individual values, inhuman relationships, attitude formation, awareness and solitary eating behaviors. The research method was investigated by the judgment sampling method. The collected effective samples were validated using a confirmed factorial analysis to ensure the validity of the discriminatory validity and the internal validity of the convergent validity. First of all, the company should provide information to the people who eat alone to A recognize the simplicity of their meals. Second, we should ensure that the individual values of the Honbab people can be formed through various promotional strategies that can lead to the formation of attitudes. Third, companies should pursue diverse event strategies that can lead to the formation of attitudes of the people of the Honbab family. Fourth, event development such as the provision of a very special service for customers only will have to be conducted when visiting the stores of the Honbap people. Finally, companies should focus on promoting the convenience, convenience, and time-consuming advantages of eating alone through a variety of marketing, and strive to increase their customers.