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A Study on the Improvement Directions of Computer Curriculum in Elementary School (초등학교 컴퓨터 교육과정의 개선 방향에 관한 연구)

  • Bae, Young-Kwon;Lim, Jin-Sook;Lee, Tae-Wuk
    • The Journal of Korean Association of Computer Education
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    • v.8 no.3
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    • pp.29-42
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    • 2005
  • In this knowledge information society, it cannot be too much to accentuate the necessity and importance of computer education. However, the current computer education in elementary school only focuses on computer application and utilization. It is not satisfactory to the needs of knowledge information society to improve mechanic office operation and/or to provide simple utilization of educational software through learning the application software functions. Therefore, based on creative and logical thought, it is necessary at this era to prepare computer education as the essence of science to create new values and to embody knowledge by understanding social and cultural environment of knowledge information society that is continuously in change and development. Accordingly, this study presents the necessity of change based on problems of computer education, and investigates field teacher's opinion on the direction of change in elementary computer curriculum in this knowledge information society. Also, this study presents a computer education curriculum for elementary school students by focusing on a comparison between our current elementary computer curriculum and that of North Carolina and of California in the United States.

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Analysis of Kinematic Characteristics of Synoptic Data for a Heavy Rain Event(25 June 2006) Occurred in Changma Front (장마전선에서 발생한 2006년 6월 25일의 호우 사례에 대한 종관자료의 운동학적 특성 분석)

  • Kim, Mie-Ae;Heo, Bok-Haeng;Kim, Kyung-Eak;Lee, Dong-In
    • Atmosphere
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    • v.19 no.1
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    • pp.37-51
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    • 2009
  • Kinematic characteristics of a heavy rainfall event occurred in Changma front are analyzed using synoptic weather charts, satellite imagery and NCEP(National Centers for Environmental Prediction) / NCAR(National Centers for Atmospheric Research) reanalysis data. The heavy rainfall is accompanied with mesoscale rain clouds developing over the Southwest region of Korea during the period from 0300 LST to 2100 LST 25 June 2006. The surface cyclone in the Changma front is generated and developed rapidly when it meets following vertical conditions: The maximum value of relative vorticity is appeared at 700 hPa and is extended gradually near the surface. It is thought that the vertical structure of relative vorticity is closely related with the descent of strong wind zone exceeding $10ms^{-1}$. The jet core at 200 hPa is shifted southward and extended downward and the low-level jet stream associated with upper-level jet stream appeared at 850 hPa. Kinematic features of heavy rainfall system at cyclone-generating point are as follows: In the generating stage of cyclone, the relative vorticity below 850 hPa increased and the convergence below 850 hPa and the divergence at 400 hPa are intensified by southward movement of jet core at 200 hPa. The heavy rainfall system seems to locate to the south of the exit region of upper-level jet streak; In the developing stage of cyclone, the relative vorticity below 850 hPa and the convergence near surface are further strengthened and upward vertical velocity between 850 hPa and 200 hPa is increased.

The Study of Costume Exhibition in Architectural Structures Heritage - Focused on Seoul, Incheon, Gyonggi-do - (유적건조물 문화재 내의 복식 전시물에 대한 연구 - 서울, 인천, 경기도를 중심으로 -)

  • Kwon, Soo-Hyun;Kang, Soon-Che
    • Journal of the Korean Society of Costume
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    • v.62 no.6
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    • pp.182-199
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    • 2012
  • The purpose of this study is to analyze the actual status of costume exhibitions displayed in architectural structures heritage today to examine if they play proper roles as visual materials and suggest the necessity of post-management for comfortable viewing. This is significant in that it makes costume exhibitions function as educational culture contents to let Korean and also foreign viewers know of our costume culture properly. As a research method, the database of the Office of Cultural Properties homepage was used to extract anything related to the lives of figures during the Chosun Dynasty among the architectural structures heritages in Seoul, Incheon, and Gyeonggido. By doing so, the costume exhibitions were able to be examined among them. With field investigation and interviews of related institutions, this study examined the current status of costume exhibitions, planning of exhibitions, and post-management. Also, they found costume exhibitions that were not right for the era, and suggested ways that were more appropriate for them. The results of this study were as follows : First, according to the third selection results, there were only six among 71 places where three districts of the architectural structures heritage were present. This is a very small quantity of places when compared with the total number of architectural structures heritage. Second, as a result of the current condition investigation, the costume exhibition in the Architectural Structures Heritage is not nearly enough for a historical investigation, and almost all polluted costumes were not displayed in suitable environments for an exhibition. Therefore, qualified managers who have expertise in exhibition planning were needed to be trained to do a post-management follow up. Furthermore, it is important to systematically reorganize post-management methods. Third, the two selected places(Haepung-buwongun-yuntaegyeong-jaesi and Sunaedong-gaok) were thought not to be right for the era among the six places with costume exhibitions, and suggestions such as flat-drawing and illustration were made.

The Impact of Nature of Purchase and Purchase Utility on Purchase Intention According to Retailtainment (리테일테인먼트에 따라 구매특성과 구매효용이 구매의도에 미치는 영향)

  • Oh, Hyun-Seok;Cheon, Hongsik J.
    • Journal of Distribution Science
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    • v.16 no.12
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    • pp.57-68
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    • 2018
  • Purpose - The development of technologies lead the volume of sale on online market increase but an off-line shopping center is still a core component in the omni-channel strategy. It is generally thought that high-level retailtainment on brick and mortar store affects purchase intentions positively, but some previous studies dispute that and have reported that retailtainment does not affect purchase intentions. So we have studied the additional factors' effect - the nature of purchase and utility - with retailtainment. Research design, data, and methodology - There are 8 treatment groups which were assigned by the method of retailtainment (high vs. low), nature of purchase (essential vs. non-essential), and utility (acquisition vs. transaction). A total of 240 subjects (office workers = 163, 68%; undergraduates = 77, 32%; average age = 30s; female = 39%) were divided into groups and exposed to one of the eight scenarios. Participant's purchase intention was the dependent, and ANOVA and L-matrix were used to analyze for main and interactive effects between factors. Results - First, the main effect and interactive effect between retailtainment and the nature of purchase are significant. We also found that the contrast between essential and non-essential at low-level retailtainment is higher than that of high-level retailtainment. Second, in the case of retailtainment and utility, transaction utility under high-level retailtainment affects purchase intentions positively. Third, between the nature of the purchase and utility, the main effect of the nature of purchase and the interactive effect is significant, but the main effect of utility is not significant. In the case of non-essential goods, the purchase intention was high when transaction utility was provided but in the case of essential goods, acquisition utility increased purchase intentions. Finally, when transaction utility is given, purchase intentions of essential goods increase under low retailtainment, and the purchase intentions of non-essential goods increase under high retailtainment. Conclusions - When customers buy essential goods, discounts decrease purchase intentions. During the season for bargain sales, purchase intentions increase when retailtainment of essential goods is low, and retailtainment of non-essential goods is high.

Assessment of Irrigation Efficiency and Water Supply Vulnerability Using SWMM (SWMM 모형을 활용한 평야부 관개효율 및 용수공급 취약성 평가)

  • Shin, Ji-Hyeon;Nam, Won-Ho;Bang, Na-Kyoung;Kim, Han-Joong;An, Hyun-Uk;Lee, Kwang-Ya
    • Journal of The Korean Society of Agricultural Engineers
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    • v.62 no.6
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    • pp.73-83
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    • 2020
  • Agricultural drought is a natural phenomenon that is difficult to observe and quantitatively express, and agricultural water use is high and usage patterns are diverse, so even if there is a lack of rainfall. The frequency and severity of agricultural drought are increased during the irrigation period where the demand for agricultural water is generated, and reasonable and efficient management of agricultural water for stable water supply is required. As one method to solve the water shortage of agricultural water in an unstructured method, it is necessary to analyze the appropriate supply amount and supply method through simulation from the intake works to the canals organization and paddy field. In this study, irrigation efficiency was analyzed for irrigation systems from April to September over the past three years from the Musu Reservoir located in Jincheon-gun, Chungcheongbuk-do and Pungjeon Reservoir located in Seosan-si, Chungcheongnam-do. SWMM (Storm Water Management Model) was used to collect agricultural water, and irrigation efficiency analysis was conducted using adequacy indicators, and water supply vulnerability. The results of the agricultural water distribution simulation, irrigation efficiency and water supply vulnerability assessment are thought to help the overall understanding of the agricultural water supply and the efficient water management through preliminary analysis of the methods of agricultural water supply in case of drought events.

A Study on the Perception of Professionalism of the Open Competitive Exam Subjects for Civil Service Librarian (사서공무원 공개채용 시험과목의 직무전문성에 대한 인식 분석 연구)

  • Park, So-Yeon;Noh, Younghee
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.25 no.2
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    • pp.229-260
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    • 2014
  • The purpose of this study was to investigate the appropriateness of the open competitive examination subjects to selecting the personnel with work profession targeted the public official librarian engaging the libraries directly operated by education office and city hall of Seoul. Also, this study suggested the ways for selecting excellent personnel within work profession. First, the public official librarian recognized that there was no practicality regarding the subjects of the open recruitment that recruit for the personnel with work profession. Second, 78.5% of the public official librarian responded the new subjects including science of public administration, social studies, science, and mathematics needed to be revised to a written examination. Third, the public official librarian thought the subjects such as library management theory, organization of information, and collection management was more appropriate for the improvement of the profession.

Development of the Scientific Creativity Task for a Field Trip to Botanical Garden - Application to Science-Gifted Elementary Students - (식물원 야외체험학습에서 활용 가능한 과학 창의성 과제 개발 - 초등과학영재학생에의 적용 -)

  • Kim, Minju;Kim, Hyunju;Lim, Chaeseong
    • Journal of Korean Elementary Science Education
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    • v.39 no.4
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    • pp.506-521
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    • 2020
  • This study aims to develop a scientific creativity task which science-gifted elementary students can conduct on a field trip to a botanical garden, and to analyze the results from conducting the task. For this, 38 science-gifted fifth-graders from the Science-Gifted Education Center, located at the Office of Education, participated in a field trip to a botanical garden, as a part of their program. Prior to the program, researchers developed a scientific creativity task for outdoor education program, along with science education specialists and teachers. The tasks were to observe plants, and to create something new and useful, or, in other words, scientifically creative, based on the plants' characteristics. The students could submit at most three ideas. Also, they assessed their own ideas, and selected an idea that they thought was the most creative. The results were analyzed by using the scientific creativity formula. The main findings from this study are as follows. First, it was found that the scientific creativity formula had an upward bias in assessing originality. Second, the students tended to assess the usefulness of their own ideas more generously. Third, the correlation between self-assessment results and scores from the scientific creativity formula for originality was r=.43. Fourth, in formula-based assessments, the correlation between originality scores and usefulness scores was relatively high, at r=.56. Fifth, the correlation between a student's scientific creativity score and the number of his or her ideas was very low, at r=.23. Sixth, when the ideas chosen as the most creative by students were compared with the ideas that had the highest scores in formula-based assessments, it was shown that 8 out of 19 students (42.1%) did not choose the idea that appeared to be the most creative when graded by the formula. This study is concluded by discussing the lessons from the scientific creativity task analysis for primary science education and gifted education.

Survey on Condominium Apartment Dwellers' Consciousness of Unit Plan in Daejeon City (대전지역 아파트 단위주호 계획에 대한 거주자의 주거의식에 관한 조사연구)

  • Choi, Byung-Sook;Kang, In-Ho;Park, Jung-A;Jung, Mi-Hyeon;Jang, Hye-Sun
    • Journal of the Korean housing association
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    • v.20 no.5
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    • pp.31-39
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    • 2009
  • The purpose of this study was to find out the residents' consciousness of the unit plan on condominium apartment and to contribute to develop a condominium apartment unit plan in Daejeon City. This research was performed by a questionnaire survey method, 464 data was collected from apartment residents lived in about $85\;m^2$ unit with 3 rooms and the apartments was limited to the complexes within 1-4 years of the length of building at Yuseong-gu and Seo-gu. By analyzing those data, findings are as follows: 1) Residents thought living room, kitchen and bathroom were importment space in a unit plan. They needed a storage function in an entrance and a intermediate room, and Anbang(mater bedroom) so did. 2) L-DK plan type was very popular and the type of front DK with L on the floor plan was preferred. This was unique results. 3) Sub-kitchen was needed for a refrigerator of Kimchi, the location of it was related to a main kitchen and a utility. the third room was needed for library, home office and storage space. 3) Bath-tub in An-bang and showe-booth in public bathroom was preferred. This was same to the popular trend of Korean condominium apartment. 4) The enlargment remodeling of balcony was showed livingroom balcony or personal bedrooms at the time of occupancy. They needed the balcony near a kitchen or an utility to equip a storage facility. Additionally, residents were preferred to their taste rather than a choice of interior concept package services.

DIASTEMA CLOSURE TREATMENT DECISION FOR AN ADOLESCENT PATIENT WITH CEREBRAL PALSY (뇌성마비인 청소년의 치간이개 치료법 결정 : 증례보고)

  • Lee, Koeun;Lee, Jae-Ho;Kang, Chung-Min
    • The Journal of Korea Assosiation for Disability and Oral Health
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    • v.11 no.1
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    • pp.1-4
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    • 2015
  • Diastema is thought to be a problem related to aesthetics, pronunciation, or malocclusion. Due to its extent and patient conditions, orthodontic treatment, prosthodontic treatment, and conservative direct resin restoration are the treatment options for diastema closure. Additional factors need to be considered when deciding on the most appropriate treatment of diastema, particularly for patients with cerebral palsy. A 13-year-old girl visited the Department of Pediatric Dentistry at Yonsei University Dental Hospital with a chief complaint of the large gap between her upper front teeth. After clinical and radiographic examinations, midline diastema of 4.5 mm, protrusive maxilla incisors, congenital missing teeth, retained primary teeth, etc. were identified. Prosthodontic treatment with intentional root canal treatment was not appropriate because of the patient's age. Dental spaces can be closed effectively via orthodontic appliances. However, additional prosthodontic and restorative intervention is unavoidable, which incurs significant costs and requires more time. Instead of orthodontic and prosthodontic treatment, direct resin restoration can address the chief complaint; these restorations are reversible, less harmful to other oral structure and teeth, relatively easy to apply, less expensive than other treatments, and require shorter office visits. Midline diastema can be treated in several ways. For diastema closure in patients with cerebral palsy, conservative resin restorations are a short, simple, and appropriate treatment compared with orthodontic or prosthodontic treatments.

The Effectiveness of online English Learning Program Contents for Elementary School Students (초등학교 온라인 영어 학습 콘텐츠 유형별 효과성)

  • Kim, Yoojeong
    • The Journal of the Korea Contents Association
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    • v.18 no.2
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    • pp.427-437
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    • 2018
  • This study explored the effectiveness of the online English learning program contents for elementary school students. The study used the online English learning program served by Gyeonggi province office of education. 107 students attending P elementary school in K city volunteered for the program. After studying English via the website for almost one year, they were asked to respond the questionnaires related to the contents of the online English program. Since the research investigated that the relations of students' grades, the time for the study, their diagnostic test scores, and the effectiveness of the contents, the survey responses were analyzed with Spearman correlation. As a result, older students thought that the type of problem-solving, the type of performing a task, WBI (Web Based Instruction) were not efficacious. Also, these types of online English program were chosen as ineffective from the students at the higher level. Whereas the type of private lesson, the lessons based on a story, and the type of animation were preferred to the students who spent longer time on the website. This highlights the need to consider the students' characteristics such as students' grades, the time for the study, and their English level when developing the contents of the online English learning program.