• Journal of Digital Contents Society
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• v.17 no.5
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• pp.317-327
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• 2016

Flipped learning is a new learning technique which can maximize the learning effect by mixing two or more different learning environments including online & offline, and recently introduced system: 'Google classroom' is the optimized internet platform for flipped learning. This study tried to apply flipped learning to regular course 2nd grade dental students(n=70) and evaluated the satisfaction of students. The subjects of periodontology and operative dentistry were chosen to evaluate flipped learning model for regular course 2nd grade dental students(n=70). Each class consisted of six classes, and three times of them were performed in conventional classes and the other three times were in flipped learning method by using Google classroom. Evaluation of satisfaction progressed at the end of class. In this study, application of flipped learning in the dental college classes showed high efficiency in terms of degree of understanding, self-directed learning and motivation. Collectively, it was shown that flipped learning using Google classroom can be a reliable platform in dental classes.

• Journal of Wetlands Research
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• v.16 no.3
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• pp.355-362
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• 2014

Changes of soil properties due to sedimentation and erosion in the river estuary may lead changes in environmental factors that affect plant growth and distribution, Then habitats in the river estuary that provide various ecological functions can also be influenced. Topsoil samples were analyzed in order to understand the soil properties of important barrier islands and habitat types in the Nakdong river estuary. The samples were obtained from Phragmites communis and Scirpus planiculmis habitats, the tidal flats in the southern area of Eulsukdo, and in Mangeummerydeung, Baekhapdeung, and Doyodeung. Analyses results showed that bulk density, pH, organic matter content and total nitrogen concentration which were directly or indirectly affected by vegetation showed significant difference (p<0.05) with habitat types but no differences in water content and oxidation reduction potential which could be affected by soil texture and showed significant difference among barrier islands. Results suggested that soil properties on barrier islands in the Nakdong river estuary were influenced first by geomorphic changes due to sedimentation and erosion, and then by the presence or type of vegetation. A range of physical and chemical properties were analyzed; soil water content and bulk density (physical properties), and organic content and pH (chemical properties) were correlated with seven other soil properties, at a level of significance higher than 90%. These aspects played an important role in determining overall soil properties in the studied area.

• Journal of Korean Library and Information Science Society
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• v.51 no.3
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• pp.303-324
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• 2020

This study aims to identify priorities in book curation service that the teacher librarians perceive important through the AHP (Analytic Hierarchy Progress) method by comparing the jobs of teacher librarians with those of curators and selecting the contents and areas of book curation service provided by school libraries. For the purpose, this study categorized the book curation service areas by class and analyzed the priorities in the book curation service areas in the school libraries by applying the AHP method on the teacher librarians who are the personnel in school libraries. As a result, the priorities in the upper-tier class were turned out to be information services, improvement of expertise, information resources, management, and promotion & marketing in that order. The priorities in the lower-tier evaluation areas were shown in the order of survey & research, Q&A, self-development, exhibition, budget allocation, connecting with experts, trend analysis, reading education, human resources, planning, collaboration class, marketing services, book status, online promotion, offline promotion, and facilities & environment. Based on the results, this study suggested the following plans to provide effective book curation services in school libraries: grasping characteristics of school library users, setting classification criteria for book curation, and finding reader participation-oriented book curation service.

• The Journal of the Korea Contents Association
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• v.10 no.12
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• pp.205-215
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• 2010

The purposed of this study was to examine the relation between dental hygienists' treatment posture and body pain by surveying 120 dental hygienists working at dental hospitals and clinics in Busan and to suggest desirable treatment postures and pain prevention methods for dental hygienists' health and job performance. Data obtained from the questionnaire survey were analyzed using SPSS 18.0 for Windows. The taller the hygienists were the less pains they had in their 'back' and 'hips' (p<0.05). The shorter the hygienists were the more pains they had in their 'back,' 'waist,' 'hips,' 'legs' and 'ankles/feet'(p<0.05). There was no difference in pains in each body part according to weight. In the results of analyzing correlations among pains in different body parts, a very strong positive correlation was observed between the pains in the 'knees' and 'legs' (r=0.71)(p<0.01). The hygienists of 56.7% had experience in education on treatment posture, and 62.5% were not doing exercise regularly. To the question on what should be done for health welfare in their workplace, the hygienists of 47.9% mentioned improvement in the environment of the workplace.

• The Journal of the Korea Contents Association
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• v.20 no.1
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• pp.562-572
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• 2020

This study analyzed subjectivity of underachievers on Peer Assisted Learning(PAS) in culinary skills related subject for providing better educational environment through consideration of educational efficiency of particular teaching method. Q Methodology was employed for analysing of responses of a small group of the students. The research found that three types of distinctive structures of responses of the students' subjectivity. The first one was Increase learning effectiveness type(Type1, N=8), the second one was Development of lesson materials for passive students(Type2, N=8), and the last one was Practical self-directed learning needs development(Type3, N=6). From the result, PAS was an effective teaching method for underachievers for encouraging participation of study program, helping to rise self-confidence in subject's tasks, and awareness of self directed learning and additional study on subjects matters. The study, however, found that students could consider themselves as an interruption to other students' study progress, and could feel other students' awareness as a burden. At last, forming a class by deeper consideration on the learning levels of each students and providing additional educational contents for encouraging self directed learning are necessary for the better efficiency for the future.

• International Commerce and Information Review
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• v.15 no.4
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• pp.437-454
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• 2013

The information exchange becomes active in the online due to the rapid development of the Internet over the various fields. It is the tendency that it acquires not only information related to the on-line related to the off line depended on the traditional oral tradition but also information in the on-line. It is the competitive environment of the hospital more competitive over the time. The felt feeling for the hospital to the consumer plays the important role as to the assessment of hospital and choice. It is very the critical matter whether it approaches the consumer to any kind of way through the on-line information transfer, and the inappropriate feeling can be caused. That is, it can install whether any kind of point about one will be embossed through the e-business marketing, and the evaluation or useful feeling for choice can be caused in the hospital to the medical consumer in being the critical matter. This research compared and analyze the results expected with the Samsung Seoul Hospital, which was most active and uses the e-business marketing among the major hospital put through in the utilization by marketing view as the domestic Big 5 Severance hospital, and feature of SNS channels of Sungmo Hospital through the case analysis. How it tried to present each channels the individual, or, the strategic frame about the unificational it utilized and can maximize the marketing result and implication according to the marketing activity purpose and direction.

• Journal of The Korean Association For Science Education
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• v.34 no.4
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• pp.385-391
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• 2014

We use a scale mainly for quantification when we study the psychological characteristics that we cannot observe. The utilization of a scale is frequent in scientific educational studies. The convenience offered by Likert scale, which is among the most frequently used, enable us to grasp characteristic attitude or recognition in students, and evaluate them against an affective domain. But a lot of errors occur, and has been noted as well in the case of utilizing Likert scale in the process. A central tendency in the utilization of Likert scale appears in this study, and the trend analyzes according to study objects and study contents, but we intend to find a way to utilize Likert scale. The results of study made on our countryside students show that the answers tend to get concentrated and a central tendency appears. Our countryside students were aware of the eyes surroundings them, have respect for elders through social experiences, and have had troubles with differentiated expression or personality in the group and cultural environments. According to the object of study, the central tendency appears more among older students than younger students, more among general students than gifted students. In the contents of study, the central tendency has been given more appearance in scope and their exposure has relatively been in large domain. Therefore when utilizing Likert scale in scientific education study, an error of central tendency appears as if they are results of the study. So, when applying the Likert scale to scientific study, we need to consider sociocultural environment, characteristics of an object and contexts of study. This enables avoiding dependence on numerical value of the utilization results, and interpret them correctly.

• The Journal of Korean Academy of Sensory Integration
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• v.15 no.2
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• pp.1-21
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• 2017

Objective : The aims of the this study is to identify job characteristics, to generate job description, and additionally to investigate duty task of the job for Korean pediatric occupational therapist focused on sensory integration intervention. Methods : In the first stage, job analysis of pediatric occupational therapist focused on sensory integration intervention was performed by an advisory committee consist of the DACUM panel. Through the job analysis, job description with definition was established. In the second stage, a survey was performed for 141 pediatric occupational therapist using a questionnaire based on the job description in order to investigate importance, frequency and difficulty of duty task and task elements of the job. This process was done from May to September 2017. Results : The job definition drew from this study was 'Pediatric occupational therapist provides occupational therapy services to children and adolescents to support occupational performance and social participation including daily activities and play". Through the job description established in this study, 9 duties (consulting, evaluation, intervention plan, intervention, document, education, self-development, management, and administration), 28 tasks and 169 task elements were drew. In the survey, among the duty tasks and task elements, 'ensure physical safety' and 'perform a session' were selected as the most important task, and 'ensure safety of children, sensory integrative equipment and environment' and 'prepare a safe environment' were selected as the most important element. Conclusion : This study defined job demands and characteristics of pediatric occupational therapist who performs sensory integration intervention. It is expected that this study can be used a resource to develop and/or improve educational program related.

• Journal of Navigation and Port Research
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• v.40 no.1
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• pp.15-20
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• 2016

In this study we measured a differential ASF to improve the accuracy of time synchronization with the signal transmitted from Pohang 9930M Loran station. We obtained the differential ASF which is calculated from a difference of the TOA measurements between KRISS and Chungnam National University(CNU), and KRISS and National Maritime PNT Office respectively. The TOA measurement at KRISS was measured by UTC(KRIS) reference clock and other sites were measured by atomic clocks respectively. The time variations of differential ASF measurements at CNU and National Maritime PNT Office were within $0.1{\mu}s$ and $0.05{\mu}s$ respectively. And we found the time variations of $0.1{\mu}s$ depending on the surrounding radio-wave environments from the differential ASF measurements of 60 minute moving averages. We can improve the accuracy of time synchronization of the local clock to within 10 ns by compensating the differential ASF through removing the common component of ASF. And we measured the absolute ASF between the Pohang transmit station and KRISS by the measurement technique of absolute time delay using a cesium atomic clock. The average ASF between two points is about $3.5{\mu}s$.

• Journal of dental hygiene science
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• v.6 no.1
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• pp.35-39
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• 2006

objective: The purpose of this study was to investigate job satisfaction of dental hygienist who were employed at the private dental clinic in Ulsan, Korea methods: The date obtained from some dental hygienists during 1 month. the survey was performed by face-by-face interview questionnaire consisting of 23 items and 6 point Likert type response format. The respondents were 77 from dental hygienists. The adjusted response rate was 88.5%(77/87). Data were analyzed using frequency distribution, independent T-test, ANOVA, chi-square and correlation. all statistical analyzed were conducted using Statistical Package for SPSS 11.5 result: In each factorial duty contentment, the level of the self-conceit from their own job was the highest. on contrary, the level of their monthly earnings was the lowest. In such a case as there was experience to move to another dental hospital, the job satisfaction was higher than nothing to move. conclusion: The dental hygienist who is in charge of protecting and hygiene of the teeth and the disease of oral has much influence of oral health. job satisfaction the dental hygienists have for their own job can influence themselves and even patients. So, making the job satisfaction higher is necessary to improve the quality of general dental hygiene.