• Title/Summary/Keyword: model studies

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A Study on the Functions of Urban Health Centers under the Local Autonomy system (지방자치제에서의 도시보건소 기능강화 방안에 관한 연구)

  • 김진삼;박형종;김공현;김병성
    • Health Policy and Management
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    • v.4 no.1
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    • pp.1-24
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    • 1994
  • Recently, two main changes were observed in relation to activities of District Health Centers. One is the rapid increase in the quantity and variety of people's demands for health services due to improvement of income level and the other is an introduction of autonomy in local administration. Unitl recently, the District Health Services were mostly depended on the instructions and orders given by Central Governments, and it would be necessary to prepare for the future implementation of autonomous local administration. Especially, the urban health centers may need more attention than those in rural areas because of their complexity and it would be more difficult in choosing and implementing a most suitable health programs for urban communities. This study was made to find out a feasibl developmental model which could be applicable for the urban bealth centers in Kyeongnam- do area. The most studies relating to health centers activities in the past were made by saking questions to current health center workers, but this study has made an effort to find out the opinions of those who are representing the people in the community. For this study, therefore, the Members of Gity Parliament and Village Headmen from 10 cities is Kyeongnam- do were interviewed for the study and the results obtained were compared to those of health officers. It was found that both Parliament Members and Village Headmen were well aware of the need of health centers, however, they tend to put lower priority for health services in compare with other community activities, and pointed out poor quality of services and lack of public understanding as the problems to be overcome. As to the desirable body for policy decision and implementation of health programs, the Members of Local Parliament think the Local Parliament as ideal, where as Village Headmen prefer health experts, and health officenr prefer District Health Center respectively. The most urgent problems of the District health Centers are mentioned as lack of health manpower. As the results of his study, the followings are suggested for improvement of District Health Services; First : reinforcement of professional health workers, Second : establishment of Community Health Council, Third : strengthening of public health education and support, Fourth : flexibility in Local Autonomy and target system relating to health activities.

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Employee's Business Outlook Disclosed Through Social Media And Employment Growth : The Case of Jobplanet (소셜미디어를 통한 직원의 기업전망 평가와 고용증가와의 상관성 : 잡플래닛 기업전망을 대상으로)

  • Byeongsoo, Kim;Ju Young, Kang
    • Smart Media Journal
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    • v.11 no.10
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    • pp.9-21
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    • 2022
  • The recent expansion of the use of social media has served as an opportunity to express users' opinions in real time in various fields such as society, economy, politics, and culture, and brought many platforms that provide various information about companies. Among them, Glassdoor.com which started 2008 in US provides users with evaluations of the current and the former employees of their companies and also provides a outlooks for the company's growth Such a platform has the utility of providing necessary information to whom want to find a job or change jobs. In addition to this, variable studies have shown that the company information provided through these platforms is useful for investors as well. In this study, it was tested whether the corporate growth prospects of employees provided by Jobplanet, a platform with a typical function similar to Glassdoor.com in Korea, have predictive power to predict actual corporate growth. The forecast provided by Jobplanet and the company's financial indicator data received from FnGuide were collected and composed of panel data and analyzed using fixed effect model regression analysis. As a result, it was found that companies with positive prospects had higher employment growth than companies with negative prospects. When the outlook was neutral, the employment growth rate was higher than that of companies with a negative outlook.

Utilizing cell-free DNA to validate targeted disruption of MYO7A in rhesus macaque pre-implantation embryos

  • Junghyun Ryu;Fernanda C. Burch;Emily Mishler;Martha Neuringer;Jon D. Hennebold;Carol Hanna
    • Journal of Animal Reproduction and Biotechnology
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    • v.37 no.4
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    • pp.292-297
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    • 2022
  • Direct injection of CRISPR/Cas9 into zygotes enables the production of genetically modified nonhuman primates (NHPs) essential for modeling specific human diseases, such as Usher syndrome, and for developing novel therapeutic strategies. Usher syndrome is a rare genetic disease that causes loss of hearing, retinal degeneration, and problems with balance, and is attributed to a mutation in MYO7A, a gene that encodes an uncommon myosin motor protein expressed in the inner ear and retinal photoreceptors. To produce an Usher syndrome type 1B (USH1B) rhesus macaque model, we disrupted the MYO7A gene in developing zygotes. Identification of appropriately edited MYO7A embryos for knockout embryo transfer requires sequence analysis of material recovered from a trophectoderm (TE) cell biopsy. However, the TE biopsy procedure is labor intensive and could adversely impact embryo development. Recent studies have reported using cell-free DNA (cfDNA) from embryo culture media to detect aneuploid embryos in human in vitro fertilization (IVF) clinics. The cfDNA is released from the embryo during cell division or cell death, suggesting that cfDNA may be a viable resource for sequence analysis. Moreover, cfDNA collection is not invasive to the embryo and does not require special tools or expertise. We hypothesized that selection of appropriate edited embryos could be performed by analyzing cfDNA for MYO7A editing in embryo culture medium, and that this method would be advantageous for the subsequent generation of genetically modified NHPs. The purpose of this experiment is to determine whether cfDNA can be used to identify the target gene mutation of CRISPR/Cas9 injected embryos. In this study, we were able to obtain and utilize cfDNA to confirm the mutagenesis of MYO7A, but the method will require further optimization to obtain better accuracy before it can replace the TE biopsy approach.

Applicability Analysis of the FE Analysis Method Based on the Empirical Equation for Near-field Explosions (근거리 폭발에 대한 경험식 기반 유한요소해석 방법의 적용성 분석)

  • Hyun-Seop, Shin;Sung-Wook, Kim;Jae-Heum, Moon
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.35 no.6
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    • pp.333-342
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    • 2022
  • The blast analysis method entails the use of an empirical equation and application of the pressure-time history curve as an explosive load. Although this method is efficient owing to its simple model and short run time, previous studies indicate that it may not be appropriate for near-field explosions. In this study, we investigated why different results were observed for the analysis method by considering an RC beam under near-field explosion conditions with the scaled distance of 0.4-1.0 as an example. On this basis, we examined the application range of the empirical analysis method by using the finite element analysis program LS-DYNA. The results indicate that the empirical analysis method based on data from far-field explosion tests underestimates the impulse. Thus, the calculated deflection of the RC beam would be smaller than the measured deflection and arbitrary Lagrangian-Eulerian (ALE) analysis result. The ALE analysis method is more suitable for near-field explosion conditions wherein the structural responses are large.

Ficus vasculosa Wall. ex Miq. Inhibits the LPS-Induced Inflammation in RAW264.7 Macrophages

  • Ji-Won, Park;Jin-Mi, Park;Sangmi, Eum;Jung Hee, Kim;Jae Hoon, Oh;Jinseon, Choi;Tran The, Bach;Nguyen, Van Sinh;Sangho, Choi;Kyung-Seop, Ahn;Jae-Won, Lee
    • Microbiology and Biotechnology Letters
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    • v.50 no.4
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    • pp.574-583
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    • 2022
  • Ficus vasculosa Wall. ex Miq. (FV) has been used as a herbal medicine in Southeast Asia and its antioxidant activity has been shown in previous studies. However, it has not yet been elucidated whether FV exerts anti-inflammatory effects on activated-macrophages. Thus, we aimed to evaluate the ameliorative property of FV methanol extract (FM) on lipopolysaccharide (LPS)-induced inflammatory responses and the underlying molecular mechanisms in RAW264.7 macrophages. The experimental results indicated that FM decreased the production of inflammatory mediators (NO/PGE2) and the mRNA/protein expression of iNOS and COX-2 in LPS-stimulated RAW264.7 cells. FM also reduced the secretion of interleukin (IL)-1β, IL-6, tumor necrosis factor (TNF)-α and monocyte chemoattractant protein (MCP)-1 in LPS-stimulated RAW264.7 cells. Results also demonstrated that FM improved inflammatory response in LPS-stimulated A549 airway epithelial cells by inhibiting the production of cytokines, such as IL-1β, IL-6 and TNF-α. In addition, FM suppressed MAPK activation and NF-κB nuclear translocation induced by LPS. FM also upregulated the mRNA/protein expression levels of heme oxygenase-1 and the nuclear translocation of nuclear factor erythroid 2-related factor 2 in RAW264.7 cells. In an experimental animal model of LPS-induced acute lung injury, the increased levels of molecules in bronchoalveolar lavage (BAL) fluid were suppressed by FM administration. Collectively, it was founded that FM has anti-inflammatory properties on activated-macrophages by suppressing inflammatory molecules and regulating the activation of MAPK/NF-κB signaling.

Testing Modality-Generality and Valence Models using Representational Similarity Analysis (표상 유사성 분석을 이용한 감각양상에 따른 정서표상 모델과 정서가 모델의 검증)

  • Hyeonjung Kim;Jongwan Kim
    • Science of Emotion and Sensibility
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    • v.26 no.2
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    • pp.25-38
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    • 2023
  • Among the discussions on affective representation, the first is to explain the affective representation in the dimensions, and the second is to explain the affective representation according to the modality. In previous studies, to explain affective representation, valence models (signed valence, unsigned valence) and Modality-generality models (modality-general, modality-specific) were presented. In this study, we compared models presented in the previous study using the recently published ASMR to confirm which models explain affective representation well. The data used in this study were behavioral rating values collected by Kim & Kim (2022), and these were obtained for ASMR stimuli that were divided into three affective types (negative, neutral, and positive) and two modalities (auditory and audiovisual). Then, a multidimensional scaling, a representational similarity analysis with a two-way repeated measures ANOVA, and a multiple regression analysis with a two-way repeated measures ANOVA were performed. The results revealed that signed valence and modality-general distinguished between affective types of stimuli better than unsigned valence and modality-specific. Similar to the results of multidimensional scaling, the results of a representational similarity analysis and a multiple regression also showed that the signed valence and modality-general significantly explained affective representation better than the unsigned valence and the modality-specific. These results suggest that the model in which positive and negative are located at the opposite ends of the one dimension explains the affective representation of ASMR well, and that the affective representation was consistent regardless of modality.

The Effect of Early Morning Delivery Service Quality of Online Shopping on Customer Satisfaction and Customer Behavior (Reuse Intention) (온라인 쇼핑의 새벽배송 서비스품질이 고객만족도와 고객행동(재이용의도)에 미치는 영향)

  • Chung, Chong Woo;Kim, Chul Soo
    • Journal of Service Research and Studies
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    • v.13 no.3
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    • pp.57-69
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    • 2023
  • Early morning delivery possesses distinct characteristics that differentiate it from standard delivery services. This service typically involves delivering products to customers during the early morning hours, primarily before 7 AM. While online early morning delivery offers various advantages from a customer perspective, it also presents challenges that sellers and online shopping companies need to overcome. The early morning delivery market is experiencing significant growth in the online food retail sector, incorporating both PC-based online shopping and mobile shopping. The objective of this research is to identify the factors influencing customer satisfaction and the intention to reuse in the context of early morning delivery for online shopping. To model the online shopping environment with early morning delivery, independent factors were categorized into three types: System Properties, Product Characteristics, and Delivery Characteristics. This study examined the relationships among these three independent factors, the mediating factor of customer satisfaction, and the dependent variable of the intention to reuse. To conduct this research, empirical validation of the research hypotheses was carried out using the final dataset for analysis. Within this study, the previously explored System Properties, Product Characteristics, and Delivery Characteristics were established. Summarizing the findings of the analysis, it was discovered that System Properties and Product Characteristics played a significant role in determining the quality of early morning delivery services for online shopping. While product diversity and convenience had a positive impact, it is noteworthy that Delivery Characteristics did not influence customer satisfaction. Consequently, it can be concluded that there is no effect on the intention to reuse.

The Effect of Information Quality and Self-efficacy on Car-sharing Usage Intention (정보품질과 자기효능감이 카셰어링 재이용의도에 미치는 영향)

  • Liu, Bo;Byun, Sookeun
    • Journal of Service Research and Studies
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    • v.13 no.3
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    • pp.20-38
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    • 2023
  • Recently, car sharing has shown the most remarkable growth among sharing economy services. In the process of analyzing the intention to reuse the car sharing service, this study tried to reflect the unique characteristics of the service, which consists of non-face-to-face self-service, such as reservation, approval, handover, inspection, and return of the vehicle. Specifically, in addition to the perceived benefits and the perceived risks, we considered 'information quality' as a platform characteristic and 'self-efficacy' as a personal characteristic. To collect data, an online survey was conducted on adults with experience in car sharing, and a total of 320 responses were used for analysis. As a result of analyzing the structural equation model, it was found that information quality and self-efficacy increased the perceived benefits of services, and the higher the information quality, the higher the self-efficacy. On the other hand, the role of information quality and self-efficacy in lowering perceived risks was insignificant, and the intention to reuse services was more affected by perceived benefits than perceived risks. As a result of further analysis using Process Macro, it was found that the effect of self-efficacy on reuse intention was mediated by perceived benefits. It was analyzed that the indirect effects of information quality on reuse intention through perceived benefits or self-efficacy were all significant. These results suggest that providing timely, sufficient, and easy-to-understand information required by users on the platform improves self-efficacy and increases service reuse intention. In order to increase the number of service users, it is important for service providers not only to provide promotional activities such as offering attractive prices, but also to provide high-quality information so that users can use it more easily.

A study on the measurement and processing of medical service experience data - From the perspective of realizing patient-centeredness - (의료서비스 경험데이터의 측정 및 가공에 관한 연구 -환자중심성 실현 관점에서-)

  • Jinho, Ahn;Jungmin, Choi
    • Journal of Service Research and Studies
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    • v.13 no.3
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    • pp.147-159
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    • 2023
  • This study is a study to develop a model for measurement and processing of experience data, which is emerging as a core value in quality management of medical services. In the theoretical background, a literature study was conducted on the importance of experience in medical service, measurement and processing of experience data, and realization of patient-centeredness. Based on these literature and theoretical background research results, operational definitions were performed for the following four research variables, and statistical tests were conducted. Hypothesis 1 is the effect of measuring experience data from the perspective of three factors on persona modeling, Hypothesis 2 is the effect of persona modeling on service blueprint visualization, Hypothesis 3 is the effect of service blueprint visualization on realization of patient-centeredness, and Hypothesis 4 is persona modeling This is the effect that modeling has on the realization of patient-centeredness. After data-based testing of factor analysis, reliability analysis, and correlation analysis, all four hypotheses were adopted as a result of verification using regression analysis. In conclusion, in an era where it is difficult to recognize the value of having only good medical staff and medical equipment in hospitals, it was possible to grasp the meaning that what kind of medical service experience is continuously obtained is more important to patients than the effectiveness of medical staff and medical equipment. In the era of the service economy, the core of hospital service competitiveness is providing attractive experiences, which is the real strength of hospitals, so the measurement and processing of experience data, which is the subject of this study, will have an important meaning in realizing patient-centeredness and realizing smart hospitals.

Key Issues and Research Direction of the Psychological Researches for the Young North Korean defectors (탈북청소년에 대한 심리학적 연구의 주요 쟁점과 연구방향)

  • Jung-Min Chae
    • Korean Journal of Culture and Social Issue
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    • v.22 no.4
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    • pp.675-693
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    • 2016
  • As North Korean Youths are getting bigger, many psychologists have focused on them academically. But earlier studies showed many mistakes which have to be solved quickly. So the purposes of the present study are to set as the main problems as follows: Key issues and research direction for the Young North Korean defectors as research participants, issues and research direction for the objectivity of the Young North Korean defectors' psychological states, issues and research direction for the Young North Korea defectors' life in South Korea. Results as follows; First, there is no enough understanding of the research subjects and no consistency among the research results, and second, most of the researchers have no objective understanding of the research subjects' psychological states, and finally, most of the researchers have a 'adaptation model' strongly. So we have to have a more proper and objective stance for the Young North Korea defectors' life in South Korea.