• Title/Summary/Keyword: 통계검증

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A Study on the Application of Suitable Urban Regeneration Project Types Reflecting the Spatial Characteristics of Urban Declining Areas (도시 쇠퇴지역 공간 특성을 반영한 적합 도시재생 사업유형 적용방안 연구)

  • CHO, Don-Cherl;SHIN, Dong-Bin
    • Journal of the Korean Association of Geographic Information Studies
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    • v.24 no.4
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    • pp.148-163
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    • 2021
  • The diversification of the New Deal urban regeneration projects, that started in 2017 in accordance with the "Special Act on Urban Regeneration Activation and Support", generated the increased demand for the accuracy of data-driven diagnosis and project type forecast. Thus, this research was conducted to develop an application model able to identify the most appropriate New Deal project type for "eup", "myeon" and "dong" across the country. Data for application model development were collected through Statistical geographic information service(SGIS) and the 'Urban Regeneration Comprehensive Information Open System' of the Urban Regeneration Information System, and data for the analysis model was constructed through data pre-processing. Four models were derived and simulations were performed through polynomial regression analysis and multinomial logistic regression analysis for the application of the appropriate New Deal project type. I verified the applicability and validity of the four models by the comparative analysis of spatial distribution of the previously selected New Deal projects by targeting the sites located in Seoul by each model and the result showed that the DI-54 model had the highest concordance rate.

A Study on the Analysis of Mediated Effects of Father's Play Participation in the Relationship Between Father's Play Belief and Child's Playfulness (아버지의 놀이신념과 유아 놀이성 관계에서 아버지의 놀이 참여도의 매개효과 분석)

  • Choi, Tae-Sun
    • Journal of Korea Entertainment Industry Association
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    • v.14 no.7
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    • pp.333-342
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    • 2020
  • Children grow and develop through play. Play is being used as a friend and a learning material and tool in everyday life of children. It is a research study aimed to empirically analyze the effects of father's play belief and play participation on child's playfulness. A survey was carried out for the selected 284 children aged 5 years and older attending kindergarten located in D-gu, Seoul in order to achieve the goal of this study. Frequency analysis, descriptive statistics, reliability verification, correlation analysis, and regression analysis were conducted on the data collected through the survey by using the SPSS program, and the research results were derived as below. First, it showed that father's play belief and play participation have a positive effect on child's playfulness of physical spontaneity, social spontaneity, cognitive spontaneity, expression of joy, and a sense of humor. Second, father's play participation had a significant effect as a partial parameter in the relationship between father's play belief and child's playfulness. Thus, it was drawn the conclusion that father's play belief and play participation are important variables that can predict child's playfulness. Therefore, It will be necessary to promote children's playfulness development by continuously providing parent education programs on creating an atmosphere of various interaction at home through plays in the relationship between father and child and a desirable role of father in the play activities with child at the level of preschool educational institutions.

Subjective and Objective Evaluation of Acne Skin Through Natural Cosmetics with Distilled Bamboo Vinegar Contents for Skin Health Care (스킨헬스케어를 위한 에코코스메틱 효과성의 주·객관적인 평가)

  • Park, Ga-Hui;Park, Jeong-Yeon
    • Journal of Korea Entertainment Industry Association
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    • v.15 no.7
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    • pp.271-280
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    • 2021
  • The purpose of this study was to conduct a subjective and objective evaluation to verify the improvements in acne skin conditions followed by the use of foam cleanser, skin toner, and a facial pack that contains bamboo vinegar. The research targets are 20 male and female high school students in Gwangju and Jeolla regions with acne skin of grade II and above based on the Korean Acne Grading System (KAGS). For the experiment, the subjects were classified between an experimental group with 10 subjects who used bamboo vinegar foam cleanser, skin toner, and facial pack and a control group with 10 subjects who used foam cleanser, skin toner, and facial pack without bamboo vinegar, and the subjects had to use the foam cleanser, skin toner, and facial pack for 12 weeks. In the case of skin improvement effects founded upon the objective measurement values, the experimental group showed a greater improvement for reducing the pores in the forehead, nose ridge, and left cheek (p<.001) compared to the control group, and the experiment group had higher satisfaction overall even for the skin improvement effects based on the subjective evaluation tool (p<.05, p<.001). The overall values of the satisfaction of the cosmetics showed that the experiment group had higher values (p<.01, p<.001) compared to the control group for the foam cleanser, skin toner, and facial pack, and there were statistically significant differences for usability in details (p<.01, p<.001). In conclusion, it was proven that bamboo vinegar is an effective natural cosmetic product material to improve acne skin conditions.

A Study on the Factors to Customers Attitude for the Goods and Service Introduced in Review UGC (체험형 1인 미디어콘텐츠에서 소개하는 상품에 대한 소비자 태도 영향요인 연구)

  • Son, Jaeyoung
    • 지역과문화
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    • v.7 no.2
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    • pp.155-172
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    • 2020
  • This study analyzed the factors to customer attitude on the goods and service introduced in UGC(User Generated Contents) and explored the difference between Korean and Chinese customers. For the first research question, the hypothetical factors were selected through literature review, the area of which are media consumption, social media and effect of advertising. In this study examined 4 independent variables: information, reliability, BJ attractiveness and customer innovation. Methodologies are confirmatory factor analysis, correlation analysis and multi regression. Result showed that reliability, BJ attractiveness and customer innovation are statistically significant. According to the β value, the biggest one is customer innovation, the second one is BJ attractiveness and the third one is reliability. The influence of information on customer attitude is not statistically significant. The result is well-aligned with the prior studies. The information factor's influence, however, is disputable because some prior studies shows that it is not significant when the research samples are recently developed channel such as mobile or social media commerce platforms. It is necessary to identify the root causes why the information factor is not significant in some research cases. For the second research question, this study used independent t-test between Korean and Chinese customers. The result shows that the difference in reliability, BJ attractiveness and attitude are stastically significant, and the ratings of Chinese customers are higher. This result caused by the difference of media commerce environment between Korea and China. Information and customer innovation didn't show significant difference.

Comparison of Fecal Microbiota between Birth and Weaning of Halla Horses Using 16S rRNA Gene Amplicon Sequencing (16S 앰플리콘 시퀀싱 기반 한라마 출생시와 이유기의 분변 미생물 비교 분석)

  • Lee, Jongan;Kang, Young-Jun;Choi, Jae-Young;Shin, Sang-Min;Shin, Moon-Cheol
    • Journal of Life Science
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    • v.32 no.12
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    • pp.1005-1012
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    • 2022
  • This study was conducted to investigate the taxonomic composition and diversity of fecal microbiota between birth and weaning stages of Halla horses using 16S rRNA gene amplicon sequencing analysis. Proteobacteria (35.7%) and Firmicutes (45.6%) were identified as the most common phylum in birth and weaning, respectively. Escherichia (19.7%) and Clostridium (14.0%) were observed as the most dominant genus in birth, and Fibrobacter (6.6%) was the highest in weaning. The results of α-diversity showed that the richness and evenness in microbial communities were statistically significant (p<0.001) in birth and weaning. The results of β-diversity indicated that the birth and weaning stages were clearly divided into two groups at the genus and species levels. Permutational multivariate analysis of variance (PERMANOVA) showed that the microbiota composition differences between birth and weaning were statistically significant (q<0.001). A linear discriminant analysis effect (LEfSe) was performed to select taxonomic makers between the birth and weaning stages. On the genus level, Escherichia, Bacteroides, Clostridium, and Methylobacterium were relatively abundant at birth, whereas Fibrobacter was more abundant at weaning. We expect that this research can be utilized as basic data in the identification of microbial communities involved in disease prevention and nutrient absorption in Halla horses.

A Study on the Actual Measurement of Air Pollutants from a Diesel Engine of Ship (선박 디젤 엔진에서 발생하는 대기오염물질 실측에 관한 연구)

  • Park, Jinkyu;Lim, Seunghun;Oh, Jungmo
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.28 no.6
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    • pp.1063-1069
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    • 2022
  • According to domestic air pollutant emission statistics, a considerable amount of air pollutants is generated by ships. Therefore, various policies are being implemented to limit air pollutant emissions from ships and improve the air quality in ports. In addition, international conventions are carried out for the prevention of marine pollution by ships. However, because few studies and experiments have been conducted on the measurement of air pollutants emitted from actually operating ships, this study presented a method and possibility for evaluating air pollutant emissions from a 9,196GT ship actually operating using a portable emission measurement system (PEMS). A difference in emission occurred depending on the RPM and load, and the emission of NOX was 497-2,060ppm, CO2 was 1.55-6.9%, and CO was 0.002-0.14%. The emission specified in the shop test provided by the engine manufacturer differed from the actual emission measured. This study proved that the maximum emission of each air pollutant generated in the entire sailing section of the ship was included in the PEMS measurement range, and the possibility of using PEMS for ships within 10,000GT was verified.

The Effect of the Blended learning and Case- based learning on Learning strategies, Critical Thinking Disposition, Academic Self-Efficacy of Nursing Students (블렌디드러닝 융합 사례기반학습이 간호대학생의 학습전략, 비판적 사고성향 및 학업적 자기효능감에 미치는 효과)

  • Lee, Oi Sun;Noh, Yoon Goo
    • Journal of Digital Convergence
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    • v.19 no.11
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    • pp.373-379
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    • 2021
  • This study intends to test the effects of blended learning and case based learning on learning strategies, critical thinking disposition and academic self-efficacy for undergraduate nursing students. A one group pre-post design was applied to adult nursing of 23 nursing students. Data were collected between March 2 and April 30, 2021. Data were analyzed by using SPSS/WIN 23.0. The results showed that learning strategies(t=-2.43, p=.019) and sub-factor cognitive strategy (t=-2.22, p=.031), meta cognitive strategy(t=-2.59, p=.013) and resource management strategy (z=-2.46, p=.014) were significantly higher than levels before blended learning and case based learning. Critical thinking disposition(t=-1.14, p=.262) and academic self-efficacy(t=-.34, p=.734) were higher than levels before but was no significantly. In conclusion, It was confirmed that blended learning and case based learning is an effective educational program that improves learning strategies of nursing students. In the future, it is necessary to develop a program in which blended learning and case based learning can improve critical thinking disposition and academic self-efficacy, and to verify the effectiveness.

A Study on the Effect of Household Loans on Financial Soundness in Banks (주택담보대출이 국내은행의 재무건전성에 미치는 영향)

  • Huang, Zi Xin;Bae, Soo Hyun
    • The Journal of the Convergence on Culture Technology
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    • v.7 no.4
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    • pp.1-7
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    • 2021
  • The purpose of this study was to analyze the effect of household loan share on bank management soundness. The results of the empirical analysis are summarized as follows. First, as a result of estimating coefficient of the mortgage loan ratio shows a significant negative relationship with the BIS equity capital ratio of banks. In addition, it was found that the mortgage loan ratio had a significant positive (+) effect on Eunhae's BIS and equity capital ratio after the financial crisis. Second, as a result of the estimation coefficient of the mortgage ratio showed a significant positive (+) relationship with the NPL of the bank and below. In addition, it is estimated that the bank's secured loan ratio changed significantly before and after the financial crisis in the effect of banks' NPL and substandard-and-below loans. It is expected to make implication to financial policy and banking regulation and supervision. We believe that more efforts should be made to increase the soundness of household loans in preparation for risk factors that may arise from exogenous factors such as changes in the international financial environment and falling property prices.

Analysis of differences in perceptions between schools and companies on the utilization of Edutech (에듀테크 활용에 대한 학교와 기업의 인식차이 분석)

  • Gye, Bo-Kyong;Baek, Song-Yi;Koh, Eun Hyeon;Heo, Duyoung;Youn, Jae-hee
    • Journal of Digital Convergence
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    • v.20 no.5
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    • pp.1-10
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    • 2022
  • As the importance of ICT use in education grows, this study analyzes the differences and characteristics of perceptions of educational fields and industries on the use of Edutech, and proposes policy suggestions for revitalizing Edutech by deriving requirements. Accordingly, a survey was conducted on 201 teachers and 100 companies, and IPA analysis, Borich's needs, basic statistics, and t-test were conducted to find out the necessity and utilization of Edutech. As a result, they were highly aware of the need for the use of Edutech, and perceived that the support or accessibility for Edutech was insufficient. Accordingly, direct exchange between on-site teachers and companies from the product development stage to utilization and follow-up management, professional support for the introduction of Edutech, simplification of the purchase process and deregulation, customized support and training programs according to the characteristics of teachers are required. In the future, it is necessary to consider the changes in education that will occur after COVID-19 and establish appropriate product development and spread strategies.

Exploring the effect of Learning Motivation type on Immersion According to the Non-Face-To-Face Teaching Method in the Major Classes for Preschool Teachers at Christian Universities (기독교 대학의 예비유아교사 전공수업에서 비대면수업 방식에 따라 학습동기 유형이 몰입에 미치는 영향 탐색)

  • Lee, Eunchul
    • Journal of Christian Education in Korea
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    • v.69
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    • pp.139-162
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    • 2022
  • This study verified the effect of learning motivation on immersion by non-face-to-face class method. For this purpose, 101 college students majoring in early childhood education were selected as research subjects. The average age of the study subjects was 22.6 years old, and 51 students took non-real-time non-face-to-face classes, and 50 students took real-time non-face-to-face classes. The study measured the level of immersion and the type of learning motivation after the non-face-to-face class was finished. The measured data were analyzed using descriptive statistical analysis and multiple regression analysis. As a result, in the results for all students, the performance approach goal had the most influence on immersion, and the mastery goal orientation had the next effect. Performance avoidance orientation had no effect. For students in non-face-to-face classes, performance approach goal orientation had an effect on immersion, and for students in real-time non-face-to-face classes, mastery goal orientation had an effect. The implications that can be obtained from the results of this study are as follows. First, non-real-time non-face-to-face classes should cover basic knowledge and skills so that there are no mistakes and failures. Second, non-real-time non-face-to-face classes should allow tasks with appropriate difficulty to be performed with a deadline. Third, real-time non-face-to-face classes should lower the fear of mistakes and failures.