• Journal of Internet Computing and Services
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• v.21 no.3
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• pp.1-9
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• 2020

Along with the growth of Blockchain, DApp (Distributed Application) is getting attention. As interest in DApp grows, market size continues to grow and many developers participate in development. Many developers are using API(Application Programming Interface) services to mediate Blockchain nodes, such as Infura, for DApp development. However, when using such a service, there is a serious risk that the API service operator can violate the user's privacy by 1 to 1 matching the account address of the Transaction executed by the DApp user with the IP address of the DApp user. It can have an adverse effect on the reliability of public Blockchains that need to provide users with a secure DApp service environment. The proposed Blockchain platform is expected to provide user privacy protection from API services and provide a reliable DApp use environment that existing Blockchain platforms did not provide. It is also expected to help to activate DApp and increase the number of DApp users, which has not been activated due to the risk of an existing privacy breach.

• The Journal of Internal Korean Medicine
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• v.39 no.4
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• pp.662-675
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• 2018

Objective: The aim of this study was to establish the developmental history of hospice palliative care (HPC) with Korean medicine (KM). Methods: We compared the developmental history of HPC in Korea with that of Britain, the United States, Taiwan, Japan, and China. The articles in English or Korean published until Feb. 2017 were searched using 'Hospice' or 'Palliative care' with the name of each nation in the PubMed, MEDLINE, ScienceDirect, and CINAHL (Cumulative Index to Nursing and Allied Health Literature) databases for foreign articles and OASIS (Oriental Medicine Advanced Searching Integrated System) for domestic articles. Books and gray literature were searched on the same databases and websites of the Ministry of Health and Welfare and related organizations in each country. Results: Modern palliative care began with the hospice movement led by Dr. Cicely Saunders. HPC in Korea started earlier than in other countries but it took considerable time for social consensus, so Korean policies have only been published recently. In this process, KM was excluded from HPC. For this reason, western medicine in Korea does not fully accept the spirit of HPC, the government does not take an aggressive stance with KM, and the institutes of KM do not have any interest in HPC. The World Health Organization recommends the establishment of policies and programs connected with a country's own health care system. In 2015, the Korean government made the third comprehensive plan for the development of KM. It included critical pathway guidelines about cancer-related fatigue and anorexia. More effort is required to set up HPC than other care types because Korea has two medical systems. Conclusions: Each nation has been trying to improve systems of HPC. We need to overcome the problems and bring out the best by making our own model of HPC with KM.

• Research in Plant Disease
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• v.17 no.3
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• pp.302-310
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• 2011

Elsinoe fawcettii is one of major pathogenic fungi which cause citrus scab diseases, resulting in fruit blemishes that reduce the economic value of fruit. By increasing interest to safe products of crops, the alternative methods of disease control is highly required. We investigated whether the 215 bacterial strains isolated from Jeju Island possess antifungal effect or suppression effect on the symptom development by Elsinoe fawcettii on citrus. Among them, three bacterial strains THJ 609-3, MRL408-3, and TRH423-3 that exhibited antifungal capacity against Elsinoe fawcettii were selected. To illustrate the disease suppression mechanism, pre-inoculation with the selected bacterial strains was carried out whether could suppress the citrus crab on the leaves. The observation with a fluorescence microscope revealed that the selected bacteria could decrease the number of fungal spores. The ratio of germ tube formation was also decreased by the selected bacterial strains at one day after fungus challenge. The strain THJ 609-3 was identified as Pseudomonas putida as a result of analyzing the internal transcript spaces of the rhizobacterial rDNA. The strains MRL 408-3 and TRH 423-3 were identified as Burkholderia gladioli. Our results may be valuable when the selected rhizobacterial strains used as the environment-friendly microbe for biological control on citrus scab caused by Elsinoe fawcettii.

• Journal of Wetlands Research
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• v.21 no.spc
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• pp.28-38
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• 2019

Climate change on the Korean peninsula is progressing faster than the global average. For example, typhoons, extreme rainfall, heavy snow, cold, and heatwave that are occurring frequently. North Korea is particularly vulnerable to climate change-related natural disasters such as flooding and flooding due to long-term food shortages, energy shortages, and reckless deforestation and development. In addition, North Korea is classified as an unmeasured area due to political and social influences, making it difficult to obtain sufficient hydrologic data for hydrological analysis. Also, as interest in climate change has increased, studies on climate change have been actively conducted on the Korean Peninsula in various repair facilities and disaster countermeasures, but there are no cases of research on North Korea. Therefore, this study selects watershed characteristic variables that are easy to acquire in order to apply localization model to North Korea where it is difficult to obtain observed hydrologic data and estimates parameters based on meteorological and topographical characteristics of 16 dam basins in South Korea. Was calculated. In addition, as a result of reviewing the applicability of the parameter estimation equations calculated for the fifty thousand, Gangneungnamdaecheon, Namgang dam, and Yeonggang basins, the applicability of the parameter estimation equations to North Korea was very high.

• Journal of Engineering Education Research
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• v.14 no.1
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• pp.46-54
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• 2011

The present study was carried out to investigate gender-related attitudes of professors in engineering as a socio-environmental factor for career barriers of female engineering students. For this purpose, 220 professors, 169 in engineering and 51 in non-engineering, completed questionnaires that evaluated gender-related knowledge, behavior, and career expectations. Our results showed that both engineering and non-engineering professors showed a low level of knowledge of gender differences. Both groups selected soft skills such as leadership, initiative and self efficacy as lacking in female students, rather than their academic skills. Professors in engineering showed higher expectations of female students pursuing a career in engineering but lower expectations for working on core projects and taking leadership at the workplace than the professors in non-engineering. The level of gender-sensitivity related to teaching was lower for professors in engineering than those in non-engineering, although professors in engineering evaluated their gender sensitivity higher than the evaluation of their female students. In addition, professors in engineering opted less for developing programs for female student career development in engineering than professors in non-engineering, and they showed a low interest level in participating in such programs. This study showed that the efforts to make engineering professors aware of the characteristics of female students should precede the development of education programs.

• Research in Community and Public Health Nursing
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• v.10 no.2
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• pp.494-507
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• 1999

This study has developed the sex education contents including new natural family plan, concept and principle by receiving the opinions and advices from professionals and professors on sex education, by amending and supplementing existing teaching materials on sex, and examining the books related with sex education contents that reflect the request of teachers and students, and the lack of sex education teaching materials which have been the reason that needs of school sex education has been highly recognized but not vitalized. The developed sex education contents are 8 areas such as knowing my body right, caring my body, observing the ability of being pregnant, marriage, sexual intercourse, process of pregnancy, miscarriage, and sexual violence, 30 lower areas, and 105 detailed contents in their composition, and here are the results of analyses of the degree of request of nurse teachers and the students on them. The teachers showed highest request in the area of sexual violence(M =4.67), the next was my body care(M=4.44), knowing my body right(M =4.38), process of pregnancy(M=4.13), marriage(M=4.11) and sexual intercoursen (M=3.98), ways of judging the ability of being pregnant(M=3.88), and miscarriage(M=3.72) showed comparative higher request than normal. Not like the teachers, the students showed that they requested Marriage area as the highest need(M=3.04) and next was sexual violence(M=3.02), caring my body(M=3.00) to have been higher than normal. Process of pregnancy(M=2.99), Sexual intercourse(M=2.81), miscarriage(M = 2.77), observation of the ability of being pregnant(M=2.74), and knowing my body right(M=2.70) have been the requests lower than normal. This study showed that sexual violence, marriage, caring my body, were the items most requested by both the leacgers and students and in elementary school the development of sex education teaching materials on natural family plan suitable to the level of development of the children has been requested as it has had no inclusion of the concept of natural family plan, and the students in elementary school are concerned on indirect sexual contents related with physical health like regular exercise rather than direct sexual education contents including sexual intercourse. All these show that they are still so naive on sex. The sense of the teachers on sex has been connected with the level of achievement of sex education of the children as it has been the important cause of deciding the contents of sex education. Therefore the materials developed onesidedly by leaders without reflecting the needs or the preference of the students might be worries of bringing shameful. low quality and negative opinions on sex, and on the other hand the children might lose the concerns and interest on sex education, So the materials should be developed to have the contents of sex education coinciding with the request of the children.

• 대한공업교육학회지
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• v.32 no.2
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• pp.87-103
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• 2007

The purpose of this study was to develop of the smoke flow visualization device of learning wind tunnel, teaching-learning materials in order to demonstrate air-flow around the fluid-flow field qualitatively and understand the resistance concepts of fluid-flow in secondary school. The contents of this study were consisted of the development and experiment of smoke flow visualization for learning wind tunnel. The main results of this study were as follows: First, this developed teaching-learning material here will help students understand the fundamental physical phenomena related with the resistance of fluid and the various patterns of air-flow in the field of transportation technology. Second, flow visualization has shown the same tendency in both of theoretical and experimental patterns. Third, the airfoil model has the smallest wake region meaning resistance against air-flow of circular cylinder and square rod model. Forth, flow separation point at leading edge and wide wake region began to show under the angle of attack of airfoil model ${\alpha}$ is $20^{\circ}$. Fifth, the wake width of the flow field behind a golf ball with dimple became slightly narrower than that without dimple. Sixth, the developed device was made to apply the teaching and learning materials for the experiment and practice in order to increase students' interest and attitude.

• The Journal of the Korea Contents Association
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• v.14 no.11
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• pp.467-475
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• 2014

With the development of genomics, wearable device and IT/NT, a vast amount of bio-medical data are generated recently. Also, healthcare industries based on big-data are booming and big-data technology based on bio-medical data is rising rapidly as a core technology for improving the national health and aged society. A pathway is the biological deep knowledge that represents the relations of dynamics and interaction among proteins, genes and cells by a network. A pathway is wildly being used as an important part of a bio-medical big-data analysis. However, a pathway analysis requires a lot of time and effort because a pathway is very diverse and high volume. Also, multidimensional analysis systems for various pathways are nonexistent even now. In this paper, we proposed a pathway analysis system that collects user interest pathways from KEGG pathway database that supports the most widely used pathways, constructs a network based on a hierarchy structure of pathways and analyzes the relations of dynamics and interaction among pathways by clustering and selecting core pathways from the network. Finally, to verify the superiority of our pathway analysis system, we evaluate the performance of our system in various experiments.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.36 no.1
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• pp.105-114
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• 2016

With approximately 20 million transportation card data entries of the metropolitan districts being generated per day, application of the data to management and policy interventions is becoming an issue of interest. The research herein attempts a model of the possibility of dynamic demand change predictions and its purpose is thereby to construct a Dynamic Passengers Trip Assignment Model. The model and algorithm created are targeted at city rail lines operated by seven different transport facilities with the exclusion of travel by bus, as passenger movements by this mode can be minutely disaggregated through card tagging. The model created has been constructed in continuous time as is fitting to the big data characteristic of transport card data, while passenger path choice behavior is effectively represented using a perception parameter as a function of increasing number of transfers. Running the model on 800 pairs of metropolitan city rail data has proven its capability in determining dynamic demand at any moment in time, in line with the typical advantages expected of a continuous time-based model. Comparison against data measured by the eye of existing rail operating facilities to assess changes in congestion intensity shows that the model closely approximates the values and trends of the existing data with high levels of confidence. Future research efforts should be directed toward continued examination into construction of an integrated bus-city rail system model.

• Journal of Christian Education in Korea
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• v.63
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• pp.183-219
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• 2020

The purpose of this study is to find out what their professionalism is and how their expertise grows among Christian alternative school teachers. Professionalism refers to the broad expertise such as specific knowledge, skills, and attitudes needed for a particular profession. The teacher expertise is also closely related to the life cycle of a teacher. The present study collected and analyzed the data using a mixed research method that combined a survey and interview. The survey, which involved 276 Christian alternative school teachers, asked about the current teacher's interest, the importance and retention of each element of professionalism, and, in addition, the level of external efforts and help in developing professionalism. The in-depth interview was conducted on 7 Christian alternative school teachers and identified the meaning of teacher professionalism, teacher quality and competencies, and environment for the professional growth. The results reveal that the professionalism recognized by Christian alternative school teachers is rather complex. It includes communication and relationship, calling and identity in addition to the curriculum and instruction expertise that reconstructs the curriculum from a Christian perspective. It is further found that teachers' decision to respond to the calling, subsequent continuous self-development, the teacher community that embodies such calling and efforts, and the school environment where autonomy and responsibility coexist, are equally important for their professional growth. Thus, in order to promote the professionalism of Christian alternative school teachers more effectively in the future, it would be necessary to provide programs that take the teacher's whole life cycle into account and are also directed to teachers themselves rather than to institutions. Considering the emphasis on the expertise in communication and relations, pre-service teacher education should focus not only on developing subject matter expertise, but also fostering communication and relational skills with students and other school community members.