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A Study on the Honesty Ethical Consciousness of Koreans and the Mission of Korean Churches (한국인의 정직윤리의식과 한국교회의 역할에 대한 연구)

  • Ahn, Jong Bae
    • The Journal of the Convergence on Culture Technology
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    • v.6 no.4
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    • pp.67-78
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    • 2020
  • Honesty is an attribute of God, and the Bible says that God is pleased, praises, and blesses honest people. However, false and hypocrisy is overflowing and honesty is being weakened in Korean society and the church. In this regard, we need to understand the level of honesty and ethical consciousness of youth and adults (workers) in Korea, and how to spread honesty in Korean society in order for the Korean church to restore its essence and play the role of light and salt in the world. To this end, We analyzed the honest ethical consciousness of Korean youth and adults (workers) by using the results of the Korean Honest Index survey conducted by the researchers at the Ethics Center of the Transparent Society Movement Headquarters of the Heungsadan in 2019. In addition, through Focus Group Interview (FGI) of 12 pastors who are practicing the honesty movement in the Korean church, we analyzed pastors' opinions on what the Korean church should do and what role it should play in order to raise the honesty ethical consciousness of Korean society. We hope that it will be an opportunity to recognize the seriousness of the honest and ethical consciousness of Korean society, and to take an active role in helping the Korean church return to the spirit of Koramdeo and spread the honest kingdom and righteousness of God in Korean society through this study.

The Effects of e-Service Quality of Online Travel Agency on Relationship Quality and Reuse Intention: Focused on Chinese Individual Tourists (온라인 여행사의 e-서비스품질이 관계품질과 재이용의도에 미치는 영향: 중국 개별여행객을 중심으로)

  • Zhang, Xin-Yi;Yeo, Young-Suk
    • The Journal of the Convergence on Culture Technology
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    • v.6 no.4
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    • pp.171-177
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    • 2020
  • This study investigates e-service quality of online travel agency and influence on relationship quality and Reuse. The individual Chinese tourists with experiences using online travel agencies were chosen for the study. The survey was carried out at Jeju International Airport, which is the most frequently used by Chinese tourists visiting Korea. Data were collected for 7 days from July 15, 2019 to July 21, 2019. A total of 320 tourists were attended in this research and finally 300 samples were used for empirical analysis. The result of the study showed that e-service quality of online travel agencies all factors(convenience, individuality, accuracy and price attractiveness) influences on relationship quality all factors(satisfaction, trust) and the factor 'accuracy' was analyzed as the biggest among them. Moreover satisfaction and trust factors of all sub-factors of relationship quality influences on reuse. In the future, we intend to provide basic marketing data for Chinese tourists using online travel agencies to officials and practitioners. Particularly, focusing on the tourism behaviors of individual Chinese tourists, we are going to propose effective business cooperation plans and strategic alternatives with online travel agencies.

Effects of critical thinking disposition, stress of clinical practice and self-confidence in performance of core nursing skill on nursing student's adapting to clinical practice (간호대학생의 비판적 사고성향, 임상실습 스트레스 및 핵심기본간호술 자신감이 임상실습 적응에 미치는 영향)

  • Jang, Young-Mi;Park, YeonHee
    • Journal of Industrial Convergence
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    • v.18 no.4
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    • pp.77-86
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    • 2020
  • This study is a descriptive research study to grasp the critical thinking tendency, clinical practice stress, core basic nursing confidence, and degree of adaptation to clinical practice in nursing students. From June to July 2019, 207 students in the fourth year of nursing college were surveyed through their own questionnaire. Collected data were analyzed by t-test, ANOVA and multiple regression analysis using SPSS/WIN v24.0. The negative correlation between clinical practice stress and critical thinking tendency(r=-.18, p=.010). The core self-confidence practice self-confidence showed a positive correlation with critical thinking tendency(r=.25, p<.001), and a negative correlation with clinical practice stress(r=-.17, p=.017). Adaptation to clinical practice showed a positive correlation with clinical practice stress(r=.44, p<.001), and the factor influencing clinical practice adaptation was stress(β=.40) (F=18.34, p<.001), and the explanatory power was about 23.1%. As mentioned above, stress brings a positive change to clinical practice, so it is necessary to identify stress factors received from clinical practice of nursing college students and reflect them in curriculum development.

Aminopropyl Functionalized Silica Nanoparticle Dispersed Nafion Composite Membranes for Vanadium Redox Flow Batteries (아미노프로필 관능기를 갖는 실리카 나노 입자가 분산된 나피온 복합막을 이용한 바나듐 레독스 흐름 전지)

  • Lee, Doohee;Yu, Duk Man;Yoon, Sang Jun;Kim, Sangwon;So, Soonyong;Hong, Young Taik
    • Membrane Journal
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    • v.30 no.5
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    • pp.307-318
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    • 2020
  • Conventional perfluorinated sulfonic acid membrane, Nafion is widely used for vanadium redox flow battery (VRFB). It is desired to prevent vanadium ion permeation through a membrane to retain the capacity, and to keep the cell efficiency of a VRFB. Highly proton conductive and chemically stable Nafion membranes, however, suffer from high vanadium permeation, which induce the reduction in charge and discharge capacity by side reactions of vanadium ions. In this study, to resolve the issue, silica nanoparticles, which are functionalized with 3-aminopropyl group (fS) are introduced to enhance the long-term performance of a VRFB by lowering vanadium permeation. It is expected that amine groups on silica nanoparticles are converted to positive ammonium ion, which could deteriorate positively charged vanadium ions' crossover by Gibbs-Donnan effect. There is reduction in proton conductivity may due to acid-base complexation between fS and Nafion side chains, but ion selectivity of proton to vanadium ion is enhanced by introducing fS to Nafion membranes. With the composite membranes of Nafion and fS, VRFBs maintain their discharge capacity up to 80% at a high current density of 150 mA/㎠ during 200 cycles.

Enhancement of Manganese Removal Ability from Water Phase Using Biochar of Prinus densiflora Bark (소나무 수피 바이오차를 이용한 수중에서 망간의 제거능력 향상)

  • Kim, Min-Ji;Choi, Jung Hoon;Choi, Tae Ryeong;Choi, Suk Soon;Ha, Jeong Hyub;Lee, Young-Seak
    • Applied Chemistry for Engineering
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    • v.31 no.5
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    • pp.526-531
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    • 2020
  • Manganese ions contained in water phase are acting as a toxic substance in the human body and also known to affect the nervous system. In particular, effective treatment technology is required since manganese removal is difficult due to its high solubility in a wide pH range. In this study, Prinus densiflora bark was chemically modified with hydrogen peroxide, and the modified adsorbent was used for removing manganese ions in an aqueous solution. The modified adsorbent showed high removal capacity of 82.1 and 56.2%, respectively, at conditions of 5 and 10 mg/L manganese ions. Also, the adsorption isotherm from the data was applied to the theoretical equation. As a result, the adsorption behavior of manganese ions was better suited to the Langmuir than Freundlich model, and it was also found from kinematics that the pseudo-second order kinetic model was more suitable. In addition, the changes of Gibbs free energy indicated that the adsorption reaction became more spontaneously with increasing temperature. Consequently, these experimental results may be used as a water treatment technology which can efficiently treat manganese ions contained in water.

Case of Treatment Using Adaptive Servo-Ventilation in a Patient with Central Sleep Apnea after a Lateral Medullary Infarction (외측 연수 경색에 의해 발생한 중추성 수면 무호흡 환자의 자동-적응형 양압기를 사용하여 치료한 경험)

  • Kim, Dae Jin;Cho, Jae Wook;Kim, Hyun Woo;Choi, Jeong Su;Mun, Sue Jean
    • Korean Journal of Clinical Laboratory Science
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    • v.52 no.3
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    • pp.278-283
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    • 2020
  • Central sleep apnea (CSA) is characterized by respiratory failure of at least 10 seconds without any effort of the chest and abdomen in the absence of upper airway resistance during sleep. In this case, the patient experiences respiratory failure that does not meet the CSA diagnostic criteria and CSA symptoms. Magnetic resonance imaging diffusion-weighted imaging (MRI DWI) scans revealed a lateral medullary infarction. Continuous positive airway pressure (CPAP) was applied as a primary treatment for CSA and respiratory failure. During the titration of CPAP, the apnea-hypopnea index (AHI) and arousal index (AI) were worse than the results before its use (AHI: 42.5/hr→82.8/hr, AI: 21.7/hr→40.8h). As a result, adaptive servo-ventilation (ASV) was chosen as the secondary treatment. Compared to the night-polysomnography results before the ASV treatment, the AHI improved (42.5/hr→8.6/hr). Therefore, ASV is a potential treatment for CSA and respiratory failure in these patients.

Risk Factors Influencing Stroke : using data from the 7th(2016-2018) Korea National Health and Nutrition Examination Survey (뇌졸중에 영향을 미치는 위험요인 : 국민건강영양조사 제7기(2016-2018) 자료를 활용하여)

  • Chung, Myung Sill;Seomun, GyeongAe
    • Journal of Digital Convergence
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    • v.18 no.9
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    • pp.277-283
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    • 2020
  • The purpose of this study was to identify the risk factors influencing stroke. The research method was used two-stage stratified cluster sampling using data from the National Health and Nutrition Survey (2016-2018). This study subjects performed a complex sample logistic regression analysis on adults aged 19 or older. Risk factors affecting stroke were shown as follows: in age groups, odds ratio were conformed when people are in their 70s, the rate is 8.861 times higher; when they are in their subjective health conditions, the odds ratio are 4.501 times higher in the bad groups; odds ratio was 3.158 times higher in the group diagnosed with hypertension and 1.598 times higher in the group diagnosed with diabetes. The result of this study found that chronic diseases such as high blood pressure and diabetes and the management of senior citizens are important because stroke is dangerous and can be managed through prevention.

Sino-Globalization Network of Chinese Migrants, Students, and Travellers (중국 이민자, 유학생, 여행자를 통해서 본 세계화 네트워크)

  • Zhu, Yupeng;Park, Hyejin;Park, Han Woo
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.9
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    • pp.509-517
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    • 2020
  • This study examined Sino-globalization through the network analysis of Chinese immigrants, international students, and travelers. The data were collected from the United Nations for immigrants, UNESCO for international students, and Ministry of Culture and Tourism of China for travelers. Consequently, Chinese immigrants and international students' favorite destinations were advanced Western countries, and Chinese travelers showed a high preference for Asian regions. Specifically, Thailand was the most popular destination for traveling, while the U.S. appeared to be the main destination for Chinese immigrants and students. The QAP analysis results showed a statistically significant correlation between the immigrant network and international student network. MR-QAP analysis found a causal relationship between the two networks. These findings may serve as empirical evidence for the Chinese government to review potential opportunities and problems related to Sino-globalization and provide the basis for preparing policy measures for other countries. Subsequent studies should compensate for research limitations by analyzing specific factors affecting national choice of Chinese immigrants, students, and travelers. The economic, social, and cultural impacts of China's globalization on other countries need to be discussed using qualitative research.

Expression of Recombinant Human Epidermal Growth Factor as a Active Form through Codon Optimization with E. coli and Co-expression of Chaperone (코돈 최적화 및 샤페론 공발현을 통한 활성 형태의 재조합 인간 상피세포성장인자의 발현)

  • Jang, Eun-Bin;Kim, Jun Su;Lee, Woo-Yiel
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.9
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    • pp.559-568
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    • 2020
  • Epidermal growth factor (EGF) is a hormone protein that affects cell growth and proliferation, and has various medical applications. In the present study, the gene of human EGF was codon-optimized with E. coli and the expression vector was constructed by cloning into pRSET. In order to obtain the recombinant human EGF in an active form rather than an inclusion body, chaperone co-expression was attempted along with codon optimization, for the first time. The expressed human EGF was isolated in the pure form by performing Ion Exchange Chromatography in two consecutive runs. ELISA analysis showed that the activity of purified EGF was greater than 99%, which is similar to commercially available EGF. Cell proliferation test confirmed that the recombinant human EGF has the ability to promote cell proliferation of human skin fibroblasts. The human EGF expression system of this study gives a significant amount of protein, and does not require the renaturation step and the additional chromatographic system to remove a fusion contaminant, thereby providing a very useful alternative to conventional expression systems for the preparation of recombinant human EGF.

Development of a Drone Platform by KIGAM for Geological Surveys and Mineral Resource Exploration (지질조사 및 광물자원탐사를 위한 KIGAM 드론 플랫폼 구축)

  • Bang, Eun Seok;Son, Jeong-Sul;Kang, Woong;Yi, Huiuk;Kim, Changryol;Lee, Chang Won;Kim, Bona;Hwang, Seho;No, Sang-Gun;Son, Young-Sun;Cho, Seong-Jun
    • Geophysics and Geophysical Exploration
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    • v.23 no.3
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    • pp.141-148
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    • 2020
  • A drone platform built by Korea Institute of Geoscience and Mineral Resources (KIGAM) is introduced. The platform consists of various drone systems developed at KIGAM for photogrammetry, remote exploration, physical exploration, field operation methods, a vehicle-based drone control center, as well as a drone data platform for data storage, sharing, analysis, and visualization of the acquired data. The performance of the drone platform is verified using results obtained with the various systems, which are tested individually and in various combined applications. Finally, the possibility of using the KIGAM drone platform for geological surveys and mineral resource exploration is discussed.