• Educational Technology International
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• 제14권2호
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• pp.137-166
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• 2013

Problem-based learning (PBL) in engineering education has been implemented in various ways. The wide range of PBL methods sometimes creates difficulties in implementing PBL. The purpose of this study was to identify the major variables that a teacher considers in PBL designs for an engineering course and suggest specific PBL methods according to the PBL design variables. This study was conducted using a review research method involving 21 studies from a range of engineering education fields. The results showed that the major variables that engineering professors need to consider when applying PBL are the authenticity of the PBL problem and the method of providing knowledge or information that the learners must know to solve the given problem. Based on the two variables identified, the following four types of PBL methods for engineering education are suggested: 1) lecture-based problem, 2) guided problem-based learning, 3) problem-based learning and 4) co-op problem-based learning.

• Communications for Statistical Applications and Methods
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• 제31권1호
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• pp.87-104
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• 2024

Most functional magnetic resonance imaging (fMRI) studies in resting state have assumed that the functional connectivity (FC) between time series from distinct brain regions is constant. However, increased interest has recently been in quantifying possible dynamic changes in FC during fMRI experiments. FC study may provide insight into the fundamental workings of brain networks to brain activity. In this work, we focus on the specific problem of estimating the dynamic behavior of pairwise correlations between time courses extracted from two different brain regions. We compare the sliding-window techniques such as moving average (MA) and exponentially weighted moving average (EWMA), dynamic causality with vector autoregressive (VAR) model, dynamic conditional correlation (DCC) based on volatility, and the proposed alternative methods to use differencing and recursive residuals. We investigate the properties of those techniques in a series of simulation studies. We also provide an application with major depressive disorder (MDD) patient fMRI data to demonstrate studying dynamic correlations.

• 산업경영시스템학회지
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• 제44권4호
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• pp.136-144
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• 2021

This study focuses on the necessity of MOT methods in companies, especially the utilization level. Based on the analysis structure of the previous study (2012), this study was conducted to compare the results with the previous results. We investigated the settlement level of MOT, the degree of necessity for MOT methods, the degree of actual use, and the Product Realization Process (PRP) for MOT-related researchers in electronic companies (n=184). It was confirmed that the higher the demand for MOT methods in the corporate field, the higher the utilization level (ratio). In particular, the need for and utilization of techniques such as Environmental Analysis, Business Opportunity Analysis, Project Feasibility Review, Roadmap, Risk Management was high. These methods were beneficial along with cost management and quality management techniques. The most challenging part of using MOT methods was the lack of systematic use, the absence of experts, and the difficulty in selecting suitable techniques. The necessity of opening subjects such as Creative Thinking, Communication, Teamwork, and Professional Ethics was high among the PRP subjects. Furthermore, the necessity of opening courses in Cost and Safety Design and Applied Statistics was higher than in the previous study.

• 한국치위생학회지
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• 제4권2호
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• pp.193-207
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• 2004

The aims of the study are as following : First, define and clarify the role and function of the dental hygienist. Second, based on thai definition, present an improved dental hygienist curriculum, improving their special competence. This study seeks to present a way for promoting role of dental hygienists as independent specialists, rather than as auxiliaries, contributing to better dental service in the process. The research was pursued by surveying by questionnaire those directly related to dental hygiene. They are 58 professors of dental hygiene, 164 dentists, 253 dental hygienists and 496 dental hygiene students, selected by the method of simple random sampling. Due to the small size of the sample, professors' group was analysed only through frequency and probabilities. For groups with larger samples(dentists, dental hygienists, dental hygiene students), methods of chi square(${\chi}^2$) tests, frequency analysis and one-way ANOVA were used in their analysis. Conclusions of the study are as following : First, role and function of the dental hygienist was defined and clarified. According to the analysis of the survey, main role of the dental hygienists as perceived by 62.9% of dentists was supporting treatments and managing patients and facility. This perception by dentists differs significantly to perception of other groups, which saw main role of dental hygienists as preventive dental treatment and dental hygiene education. Also, only 20.2% of dental hygienists perceived patients and facility management as their main role. This divergence of perception between groups weakens speciality competence of dental hygienists. To strengthen dental hygienists' speciality competence, preventive dental treatment and dental hygiene education must be defined as main role of dental hygienists. Furthermore, role of dental hygienists can be categorized into cooperative and auxiliary role. Second, in order to strengthen speciality competence of dental hygienists, their education must be augmented with curriculum emphasizing cooperative role. Specifically, courses on preventive dental treatment, dental hygiene education and dental X-ray photography must become compulsory, as well as becoming more comprehensive and organized. Also, training in schools and hospitals must be focused on those subjects. In addition, courses concerning auxiliary role must be incorporated into optional courses and more pedagogical courses are needed to widen students' career choices. Third, practical relevance of national dental hygienist certification examination must be heightened. In the survey, all groups gave negative response to questions concerning practical relevance of national dental hygienist certification test. Specifically, contents of the tests must be changed to test participants' competence in the cooperative area. Also, the test itself must be strengthened by adding practical examination to the certification scheme, as well as having more difficult examinations.

• 한국학교ㆍ지역보건교육학회지
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• 제8권2호
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• pp.35-48
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• 2007

Background & Objective: The purpose of this study was to identify the level of health behavior and taking courses related with those subjects by college students and analyse the factors that have effect on these issues so that provide a basic material in developing policy and education program that can increase the level of health behavior for them. Methods: A questionnaire was applied 1,500 college students for two months from October 10 to 30, 2007. Results: 1) When viewing the objects of this study as general traits and social economic ratio, 'female' was 59.4%, BMI index of '20-14' was 52.7%, department of natural science was 47/7%, and 'their own house' was 51.0%. 2) When viewing the experience of taking courses related with health by the trait of demography and sociology, 'no' was most high by showing 42.2%, and those of female. under 19 in BMI index, and the department of natural science showed no experience. 3) When viewing satisfaction with college life they showed $3.00{\pm}0.71$, stress level in college life $2.84{\pm}0.41$, the level of health behavior $2.06{\pm}0.65$. 4) When viewing taking courses related with health, stress in college life. and health behavior according to satisfaction with college life they showed $2.06{\pm}0.59$. 5) When viewing the level of health behavior according to demographic and sociological traits, the habit of eating was $2.48{\pm}0.52$ and health care was $2.96{\pm}0.47$. 6) When viewing the effect of factors on health behavior, there were gender, age, residence area, grade, and satisfaction with college life. Conclusion: As we can see from the results above, it is the fact that the students in college are neglecting the subjects related with health owing to short period of education and major based education by the education aim of fostering professional career manpower. Therefore it needs open many culture courses for the subject related with health in college for the students to increase their health level as well as their major, and also there needs combined improvement of college and government system.

• 한국간호교육학회지
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• 제5권1호
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• pp.118-132
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• 1999

To improve the effectiveness and efficiency of public health personnel training, we evaluated not only how appropriate the students felt the objectives, contents, methods and multimedia used in the train ing courses, but also how much the students accomplished the objectives and applied skill and knowledge to their own works. We selected 5 courses for the study : Tuberculosis control, Radiological technique, Public health information, Immunization, Mental health management courses used by Kirkpatrick's evaluation model. Reaction evaluation was carried out in final day by questionnaire. The results showed that all of them were very satisfied with educational input and curricula, learn Ing environment. Secondly, we measured the degree of learning achievement on pre and post training by questionaire of specific behavioral objectives. The degree of learning achievement was statistically higher just after training than pre training (paired t-test, p<0.01). Thirdly, evaluation of behavioral change to job was conducted to find out how much students applied skill and knowledge to their own job in 3 months after training by questionnaire. The results of behavioral change evaluation showed that 43.5% of the students who were performing job related with the training courses in 3 months after training applied the learned skill and knowledge to their own job quite well and 37.8% of them applied relatively well, therefore total 81.4% of them applied to their own job. And effectiveness of training for the above mentioned students showed that 41.9 % of them had improved or enforced their jobs after training, 35.5% of them had had no remarkable changes, and 15.7% had newly applied the learned skill and knowledge to their jobs. For evaluating the degree of usefulness of material predistribution in two weeks before training, we compared experimental groups with control groups. The results showed that general reactions are helpful but the degree of learning achievement is no discrepancy.

• 예술인문사회 융합 멀티미디어 논문지
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• 제9권2호
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• pp.259-269
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• 2019

본 연구는 국내 이공계 대학 유학생들의 전공기초 학습 경험을 탐색하여 유학생들이 이공계 학부 과정을 이수하는데 실제로 필요로 하는 것이 무엇인지 살펴보고 국내 이공계 대학의 교육 경쟁력 강화를 위한 시사점을 제공하고자 수행되었다. 연구 대상은 국내 이공계 대학에 재학 중인 유학생 7명이며, 출신 국가는 중국, 베트남, 우즈베키스탄, 말레이시아 등 4개국이다. 연구자는 자발적인 참여 의사를 밝힌 유학생 7명에 대하여 서답형 설문 조사를 실시하였으며, 이 중 4명에 대해서는 개별적인 심층 면담도 진행하였다. 면담 시간은 30분에서 1시간 정도 소요되었으며, 반구조화된 면담 기법을 활용하였다. 면담 내용은 참여자들의 동의 하에 모두 녹음되었으며, 녹음된 자료는 전사하여 면담노트와 함께 관리되었다. 전사된 자료는 연속 비교법의 단계에 따른 부호화 및 범주화 과정을 토대로 분석하였으며, 그 결과, 이공계 전공기초 과목 수강에 따른 한국어 능력 부족으로 인한 문제, 전공기초 과목에서 등장하는 용어나 개념 이해의 문제, 전공기초 과목의 보충학습 방법, 전공기초 교육프로그램 개설의 필요성 및 대학의 관심과 지원 요청 등의 네 가지 주제들이 도출되었다.

• Archives of Hand and Microsurgery
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• 제23권4호
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• pp.281-289
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• 2018

목적: 우리는 미세혈관 유방 재건술 수술 계획에 참고하기 위하여 컴퓨터 단층 촬영(computed tomography, CT)혈관 조영술을 이용하여 심하복벽혈관과 천공지의 주행을 세부 유형으로 나누어 보고 영상 및 임상 소견의 상관성과 각 유형의 빈도를 보고하고자 한다. 방법: 하복부 조직을 이용한 유방 재건을 받은 연속한 115명의 환자를 전향적으로 분석하였다. 심하복벽동맥과 천공지를 주로 근육 내 주행의 특징에 따라 박리하기 용이한 것과 박리에 곤란한 것으로 특징짓고 각각의 빈도를 조사하였다. 결과: 확인된 425개의 천공지 중 89개(20.9%)의 천공지는 박리에 용이한 주행을 하였으며 긴 근육 아래 주행(34.8%), 긴 근막 아래 주행(15.6%), 근육 주위 주행(13.9%)이 그에 속하였다. 반면 심하복벽동맥이 없거나 적절한 천공지가 조영되지 않는 경우가 3예와 8예에서 보고되었다. 총 65명(56.5%)의 환자가 적어도 한 개 이상의 박리가 용이한 천공지를 가지고 있었다. 결론: 수술 전 CT 혈관 조영술을 통하여 심하복벽동맥과 천공지의 주행을 분석하여 박리에 용이한 유형과 곤란한 유형을 미리 파악함으로써 수술 계획의 수립에 도움을 받을 수 있다.

• 한국보육학회지
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• 제19권3호
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• pp.57-69
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• 2019

본 연구는 보육교직원의 전문성을 강화하기 위한 보수교육의 현재 실태를 살펴봄으로써 현 보수교육체제의 강점과 문제점을 파악하고 향후 개선 방안을 제시하는데 그 목적이 있다. 특히 보수교육의 한 축을 담당하는 온라인 특별직무교육을 포함하여 보육교직원 보수교육의 현재 실태를 살펴보고 그 문제점과 개선방안을 제시해 보고자 한다. 이를 위하여 보육교직원 보수교육에 관한 선행연구를 중심으로 쟁점 분석을 실시하였고 보수교육 관련 법령 및 정책을 중심으로 문헌고찰을 실시하였다. 연구결과, 보육교직원 보수교육의 쟁점은 교육과정의 다양화 및 전문성, 교육방법의 다양화, 자격관리, 교육지원 등으로 범주화되었고, 이는 다시 14개의 핵심과제로 정리되었다. 그동안의 선행연구에서는 거의 다루지 않았지만 최근에 두드러진 현상으로, 보수교육 현장의 온라인 특별직무교육 참여 증가 현상을 분석하고 문제점을 제시하였다. 본 연구결과를 토대로 '보수교육' 용어의 변경, 직무교육의 다양화 인정, 직무교육의 학점은행제, 집합교육과정과 동일한 온라인 직무교육(기본과정/심화과정) 제공, 승급교육의 교육지원 확대, 보수교육기관 평가 의무제 전환 등의 발전방안을 제언하였다.

• 한국환경복원기술학회지
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• 제6권6호
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• pp.56-71
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• 2003

Waste landfills have been the center of environmental problems and they must be restored due to environmental pollution, disgusting landscape, and cost of management. It is suggested that they be recycled urban space as cities expand. Specially, nonsanitary waste landfills which have no pollution prevention facilities cause serious problems. Restoring the landfills as parks and golf courses, so on makes more benefits because of cheap use land, closeness to urban area, flat topography applicable to parks and golf courses, and high land values after restoration and the changes to local recreation sites. Restoration of waste landfills is a complex, costly, and interdisciplinary work. But, the waste landfill is a manmade ecosystem. Control, restoration and postmanagement of waste landfills are very important problems. The role of vegetation prevents soil erosion, reduces soil water storage, and obstructs leachate seepage. Early restoration makes derelict lands into man park artificially geared to soil, vegetation, landforms and hydrology. But, Ideal restoration is to make stable ecosystem nature-friendly and compatible with surrounding landscape without more management. Landscape is structured hierarchically with patches and stands as small components and forms forest as large components. Therefore, landscape formation of the waste landfills needs much restoration process. There are many ecological restoration techniques for the waste landfills. Those are divided into artificial and natural methods. The artificial method is anthropogenic plantings while the natural method is to trigger and use succession processes. The most important thing in the restoration of waste landfills is to consider the final restoration objectives of each waste landfill. According to these objectives, the depth of covering layer, planting degree, and structural design should be determined. The effective restoration methods should be selected of artificial and natural options.