• Title/Summary/Keyword: Instruction

Search Result 4,308, Processing Time 0.031 seconds

Investigation of H model blended e-learning technique in enhanced effectiveness of class learning (대학 강의실 수업의 효과성 향상을 위한 H형 블렌디드 이러닝 적용 효과 분석)

  • Choi, Byongsu;Yoo, Sang-Mi
    • The Journal of Korean Association of Computer Education
    • /
    • v.16 no.3
    • /
    • pp.49-60
    • /
    • 2013
  • This study is aimed to investigate that the blended e-learning could enhance the effectiveness compared to the conventional lecture performed in classroom. At first, both the CbE(Class based E-learning) and the EbC(E-learning based Class) mode have been generated in blended e-learning operation method following the process which analyze the various studies of interest. In addition, the instruction structures of Z Type(Zigzag model) and H-Type(Ladder model) were established as proposed model. The H-Blended e-learning based on CbE mode was introduced in the Excel Spread Sheet subject which held in A University to achieve the goal of this study. Learners were categorized and belonged to either the group 1(over 50% of attendance in cyber lecture) or the group 2(the rest of them). The data analysis was performed with $x^2$-test, t -test to compare the achievement of study between groups. The t -test result showed that the academic achievement in learning with group 1 was statistically significant than the learner in group 2. The effectiveness of the blended e-learning has been proved as the logistic regression analysis showed that the rate of the attendance in the cyber lecture functioned as indicator that enable to predict the acceptance.

  • PDF

DENTAL CARIES TREATMENT IN FEEDING PROBLEM PATIENT WITH CONGENITAL ESOPHAGEAL ATRESIA : A CASE REPORT (선천성 식도폐쇄를 가진 식이장애 환아의 치아우식 치료 증례 보고)

  • Heo, Seon-Jae;Lee, Mi-Yeon;Shin, Teo Jeon;Hyun, Hong-Keun;Kim, Jung-Wook;Jang, Ki-Taeg;Lee, Sang-Hoon;Kim, Chong-Chul;Kim, Young-Jae
    • The Journal of Korea Assosiation for Disability and Oral Health
    • /
    • v.12 no.1
    • /
    • pp.6-10
    • /
    • 2016
  • Esophageal atresia is the abnormal development of the esophagus that connects the mouth to the stomach. This birth defect results in the incomplete connection of the esophagus to the stomach causing an inability to swallow properly and breathing difficulties. Surgery is the only treatment for esophageal atresia. Patients undergone an esophageal reconstruction usually suffer from gastroesophageal reflex. A 5-year old boy with congenital esophageal atresia and Sciwitar syndrome visited Seoul National University Dental Hospital because generalized excessive loss of tooth structure. The patient had history of multiple operations for reconstruct esophagus. He had little food intake experience thought oral and had difficulty to swallowing. The patient was generalized severe erosive and decayed state. For patient, the dental procedure under general anesthesia was scheduled due to the multiple caries with erosion and poor cooperation. Under general anesthesia, pulpectomy and restoration as well as extraction was performed. Gastroesophageal reflex is potentially serious condition, with various extraesophageal adverse effects such as dental erosion. To prevent progression of dental caries, dietary counselling and oral hygiene instruction should be reinforced. Also, restorations to erosive teeth will maintain esthetics and function and preserve pulp vitality.

Floating Point Unit Design for the IEEE754-2008 (IEEE754-2008을 위한 고속 부동소수점 연산기 설계)

  • Hwang, Jin-Ha;Kim, Hyun-Pil;Park, Sang-Su;Lee, Yong-Surk
    • Journal of the Institute of Electronics Engineers of Korea SD
    • /
    • v.48 no.10
    • /
    • pp.82-90
    • /
    • 2011
  • Because of the development of Smart phone devices, the demands of high performance FPU(Floating-point Unit) becomes increasing. Therefore, we propose the high-speed single-/double-precision FPU design that includes an elementary add/sub unit and improved multiplier and compare and convert units. The most commonly used add/sub unit is optimized by the parallel rounding unit. The matrix operation is used in complex calculation something like a graphic calculation. We designed the Multiply-Add Fused(MAF) instead of multiplier to calculate the matrix more quickly. The branch instruction that is decided by the compare operation is very frequently used in various programs. We bypassed the result of the compare operation before all the pipeline processes ended to decrease the total execution time. And we included additional convert operations that are added in IEEE754-2008 standard. To verify our RTL designs, we chose four hundred thousand test vectors by weighted random method and simulated each unit. The FPU that was synthesized by Samsung's 45-nm low-power process satisfied the 600-MHz operation frequency. And we confirm a reduction in area by comparing the improved FPU with the existing FPU.

Next Generation Convergence Security Framework for Advanced Persistent Threat (지능형 지속 위협에 대한 차세대 융합 보안 프레임워크)

  • Lee, Moongoo;Bae, Chunsock
    • Journal of the Institute of Electronics and Information Engineers
    • /
    • v.50 no.9
    • /
    • pp.92-99
    • /
    • 2013
  • As a recent cyber attack has a characteristic that is intellectual, advanced, and complicated attack against precise purpose and specified object, it becomes extremely hard to recognize or respond when accidents happen. Since a scale of damage is very large, a corresponding system about this situation is urgent in national aspect. Existing data center or integration security framework of computer lab is evaluated to be a behind system when it corresponds to cyber attack. Therefore, this study suggests a better sophisticated next generation convergence security framework in order to prevent from attacks based on advanced persistent threat. Suggested next generation convergence security framework is designed to have preemptive responses possibly against APT attack consisting of five hierarchical steps in domain security layer, domain connection layer, action visibility layer, action control layer and convergence correspondence layer. In domain connection layer suggests security instruction and direction in domain of administration, physical and technical security. Domain security layer have consistency of status information among security domain. A visibility layer of Intellectual attack action consists of data gathering, comparison, decision, lifespan cycle. Action visibility layer is a layer to control visibility action. Lastly, convergence correspond layer suggests a corresponding system of before and after APT attack. An introduction of suggested next generation convergence security framework will execute a better improved security control about continuous, intellectual security threat.

A Study on the Therapists' Protective Actions of Medical Information Privacy - With a focus on physical and occupational therapists - (환자 프라이버시 보호행동 실천에 관한 연구 - 물리치료사와 작업치료사를 중심으로 -)

  • Kim, Jeong-Ja;Kweon, Eun-Ha
    • The Journal of the Korea institute of electronic communication sciences
    • /
    • v.7 no.2
    • /
    • pp.447-455
    • /
    • 2012
  • The present study was carried out with a view to examine the protective actions of physical and occupational therapists for patients's privacy. For this purpose, a survey was conducted with the questionnaires that were distributed to 297 physical and occupational therapists engaged in general hospitals as well as in rehabilitation clinics across the country from January 2 to 13, 2012. From the survey, it was made known that the overall extent of protective actions practiced by them was $3.54{\pm}.733$ in average. Divided by area, the average protective action in communication was $3.62{\pm}.776$, followed by $3.57{\pm}1.013$ in direct contact and $3.53{\pm}.780$ in maintenance and management, respectively. The analysis of general characteristics by each area showed that the older their age gets and the longer their career is, the more the protective action is practiced by them. Although they are well aware of the fact that the medical information of patients should be kept 100% secret and they practice it to almost excellent grade (5), the physical and occupational therapists, as key experts in charge of improving functions of patients, were found to have little concern for and little knowledge about contents of protecting medical information. It is thus required to perform public relation and instruction continuously to intensify their awareness of needs to protect patients' privacy and to implant ethical sense in this regard deep in their mind.

A Study on Securing Stability following the proposal and Application of Integration Procedure following the Diversification Process of Information Security Policies (정보보안 정책의 다변화 과정에 따른 일원화 절차의 제안과 적용에 따른 안전성 확보에 대한 연구)

  • Seo, Woo-Seok
    • The Journal of the Korea institute of electronic communication sciences
    • /
    • v.13 no.2
    • /
    • pp.405-410
    • /
    • 2018
  • Distribution of a series of procedure for establishment and revision for various instructions on information security for public institutions and diversified process of performance system following the compliance with the instruction are applied to the integrated procedure that any revision or change has led to the studies that are applied on the basis of all environment requirements and the facilitation of such studies in the integrated procedure for the entire information security. However, as the difference of possessing the work territory for each institution, maintaining and securing the security with the heterogeneous type for subject, the information still displays the issues to link to a series of process to the procedure to secure the foregoing as stability, In addition, the notice should be made by the public institutions for the result structured and notified on the basis of budget and the additional time and expenses for re-distributing to the private institutions would be another issue for the part to accomplish the purpose of such study. Therefore, under this study, the subject of information security of similar institutions should be sorted out and statistically classified, and it proposes the integration procedure through a series of diversity and multi-change process and summarize the same in the proposed procedure to engage in studies to secure the optimal stability.

Perceptions and Practices of Teachers in an Earth Science Teachers' Research Group About Teaching Geologic Field Trip: A Case Study (지구과학 교사 연구 모임 참여 교사의 야외 지질 학습 지도에 대한 인식과 실행에 대한 사례 연구)

  • Jun, Young-Ho;Kwon, Hong-Jin;Choi, Byeon-Gak;Park, Jeong-Woong;Kim, Chan-Jong
    • Journal of the Korean earth science society
    • /
    • v.28 no.6
    • /
    • pp.686-698
    • /
    • 2007
  • The purpose of this study was to investigate the perceptions and practices of secondary science teachers who participated in an Earth science teachers' research roup about teaching geologic field trips. Four Earth science teachers participated in this study. Data included field trip observations, semi-structured interviews with teachers and students, and analysis of instructional materials and students' reports from the field trip. Field trip observations and interviews were video- and audio-taped and transcribed. Results indicated that teacher participants focused more on aesthetic objectives for geologic field trip. The participants' instruction tended to show rather teacher-centered explanation due to limited time at each field site though various teaching strategies were used at times to engage students in a scientific inquiry. This group of teachers strived to develop their professional ability to guide geologic field trip by working with a small study group with colleagues, participating geologic field trips, and enrolling graduate programs.

Inservice Elementary Teachers' Perceptions of Teaching Skills and Educational Settings in Implementing a Problem Based Learning Approach (문제중심학습 교수 실행의 능력과 교육 환경에 대한 초등 교사들의 인식)

  • Choi, Hyun-Dong
    • Journal of the Korean earth science society
    • /
    • v.32 no.3
    • /
    • pp.334-345
    • /
    • 2011
  • The purpose of this study was to find out inservice teachers' teaching skills and relevant educational settings that could be applied to an instruction of problem-based learning (PBL). Participants have been instructed PBL teacher training programs and applied PBL into teaching and learning process. Three elementary teachers were selected to participate in the study, and data were collected with semi-structured interviews. The interviews of the teachers in relation to PBL were analyzed by two main topics: (1) the teachers' teaching skills required in PBL and (2) the educational settings in implementing PBL. The results are as follows: First, there is a difficulty involved in the implementation of PBL in that its preparation and teaching process are different from the traditional teaching methodology. However, as a helper who guides the students to self-directed learning in the free and permissible learning environment in which students are motivated to develop their potential effectively, the teachers are to invest their time consistently and to put their efforts into making an effective class in the entire process of PBL. Second, as a method to apply the problem-based learning to the education settings, the teachers must spread the awareness of PBL to fellow teachers, students, their parents and the administrators in education and form the community of the teachers. Most importantly, when the teachers apply PBL in the directly, from the joy of witnessing the changes in the students, they will choose to adopt PBL.

Rereading World Geography Textbooks in Terms of Global Education: An Analysis of Korea in US World Geography Textbooks (세계 시민 교육의 관점에서 세계 지리 교과서 다시 읽기: 미국 세계 지리 교과서 속의 '한국')

  • Noh, Hae-Jeong
    • Journal of the Korean Geographical Society
    • /
    • v.43 no.1
    • /
    • pp.154-169
    • /
    • 2008
  • Geography textbooks often have treated the world as a collection of independent nations. Also, many scholars have warned of ethnocentric bias in geography textbooks. Global education that emphasizes world interdependence and pursues global perspectives offers some possibilities to go beyond the status quo of current World Geography textbooks. The primary objective of this study is to analyze current US World Geography textbooks in terms of global education. A secondary objective is to explore a framework for rereading World Geography textbooks critically. This interpretive qualitative case study indicates that US World Geography textbooks maintain an imperialist and American-centered perspective. Especially, the case of Korea shows that other places and people are underrepresented through dichotomy, negative attitude and exclusion, misconception and stereotyping, and simplification in textbooks. Therefore, we need to detect conscious and unconscious fallacy and bias, to understand the world view and experiences of underrepresented people, and to deal with controversial global issues from diverse perspectives through global perspectives and post-colonial perspectives of global education.

A Survey of the Cognition on Teaching Consulting and Dietary Class of Home Economics Teachers (수업컨설팅 및 식생활수업에 대한 가정과교사의 인식 조사)

  • Kim, Yun-Hwa
    • Journal of Korean Home Economics Education Association
    • /
    • v.25 no.3
    • /
    • pp.1-18
    • /
    • 2013
  • This study was conducted to investigate the perception of teaching consulting and dietary education of Home Economics teachers. The subjects consisted of 139 Home Economics teachers in Korea. The perceptions of Home Economics teachers on their teaching class were as follows: the teachers who had a lot of psychological burden on their open classes, 62.6%; who were satisfied with their teaching, 29.5%; who had been teaching consulting, 40.3%; consulting is needed in order to improve the quality of instruction, 46.8%; who wanted to receive teaching consulting, 46.1%. who wanted to receive teaching consulting excellent colleagues, 76.3%. The most of the Home Economics teachers had a positive attitude on the teaching consulting. The perceptions of teaching strategies of dietary teaching classes were as follows: using audio-visual materials for students concentrate, 47.5%; observing the students reactions and feedback for individual variation, 73.4%; descriptive class for main teaching method, 58.3%. The difficulties of teaching dietary class were as follows: total mean, 2.60/5.00; considering individual differences, 3.26; involving students in activities, 3.11; selection of teaching media, 2.88; production of media, 2.88; planning teacher and student activities, 2.85. Home Economics teachers have to lead dietary education in society and schools but they feel a lot of psychological burden on opening teaching class. Therefore Home Economics teachers are recommended to devote consistent efforts to strengthen teaching ability through the analysis of teaching ability, teaching reflection, consulting and actual performance of self-supervision.

  • PDF