• Title/Summary/Keyword: Educational Research

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No-reference Image Blur Assessment Based on Multi-scale Spatial Local Features

  • Sun, Chenchen;Cui, Ziguan;Gan, Zongliang;Liu, Feng
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.14 no.10
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    • pp.4060-4079
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    • 2020
  • Blur is an important type of image distortion. How to evaluate the quality of blurred image accurately and efficiently is a research hotspot in the field of image processing in recent years. Inspired by the multi-scale perceptual characteristics of the human visual system (HVS), this paper presents a no-reference image blur/sharpness assessment method based on multi-scale local features in the spatial domain. First, considering various content has different sensitivity to blur distortion, the image is divided into smooth, edge, and texture regions in blocks. Then, the Gaussian scale space of the image is constructed, and the categorized contrast features between the original image and the Gaussian scale space images are calculated to express the blur degree of different image contents. To simulate the impact of viewing distance on blur distortion, the distribution characteristics of local maximum gradient of multi-resolution images were also calculated in the spatial domain. Finally, the image blur assessment model is obtained by fusing all features and learning the mapping from features to quality scores by support vector regression (SVR). Performance of the proposed method is evaluated on four synthetically blurred databases and one real blurred database. The experimental results demonstrate that our method can produce quality scores more consistent with subjective evaluations than other methods, especially for real burred images.

The Effects of Economic Anxiety and Self-Efficacy on the Financial Stress of Middle-Aged Male (중년 남성의 경제적 불안, 자기효능감이 재정 스트레스에 미치는 영향)

  • Lim, Sunyoung;Park, Hyesun
    • Journal of The Korean Society of Integrative Medicine
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    • v.8 no.3
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    • pp.163-172
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    • 2020
  • Purpose : The purpose of this study was to investigate economic anxiety, self-efficacy, and financial stress levels in middle-aged male and identify factors affecting financial stress and provide baseline data for the development of nursing interventions to reduce financial stress in middle-aged male. Methods : Participants were 91 middle-aged male who live in Seoul and Gyeonggi Province. The data collection period was from April 1, 2020, to May 1. In this study, the questionnaire of economic anxiety, self-efficiency, financial stress was used. The data were analyzed by average, standard deviation, minimum, maximum correlation and regression using SPSS version 21.0. Results : In this study, the financial stress of middle-aged male affected economic anxiety with significant results (β=.628, p<.001). The absolute model's explanatory power was 36.8 % (adjusted R2=.368), indicating that economic anxiety affects financial stress levels in middle-aged male (F=27.151, p<.001). Conclusion : This study shows that economic anxiety affects financial stress. Based on the research results, basic data for the development and application of nursing programs to reduce financial stress were presented in consideration of the economic anxiety of middle-aged males. Therefore, there is a need for mediation to help middle-aged men positively recognize real-life situations and changes in society. Such mediation involves the development and application of educational and counseling programs that can reduce financial stress and economic anxiety in middle-aged men.

The Effects of Information Searching Behavior and Perceived risk on Consumer Satisfaction in Medical Service Consumer (의료소비자의 정보탐색행태와 지각된 위험이 고객만족도에 미치는 상대적 영향)

  • Chae, Yoo-Mi;Lee, Sun-Hee
    • Health Policy and Management
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    • v.20 no.3
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    • pp.138-156
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    • 2010
  • Objective : The purpose of this study is 1) to understand the information-searching behavior of health care consumers ; 2) to examine the relationship between the information-searching behavior of health-care consumers and regulatory variables such as socioeconomic factors, characteristics of medical utilization, and perceived risks ; and 3) to determine the factors that affect consumer satisfaction, especially with respect to information-searching behavior. Method : The data for this study were collected from 838 respondents in five university hospital located in three areas?Seoul, Gyeonggi province, and Chungchong province. As the first step of the study, we conducted a preliminary survey from September 23?26, 2008. At the second step, we conducted a survey on the effect of information-searching behavior on those individuals who had visited. Furthermore, personal interviews were conducted through a face-to-face survey between September 30 and October 17, 2008. Results : The major research findings that were obtained from the study were as follows : First, the age, educational level, and residential district were associated with information source utilization. Second, the level of information searching effort and quality of service had a significant effect on consumer satisfaction. Conclusion : These results show that it is essential for marketers to have in-depth knowledge about the young and educated people who actively search for information and about those who are in the prime of their life and rely on word-of-mouth communication from personal and experi in-al informers. Therefore, marketers should develop different marketing strategies to meet the needs of such consumers.

Relationships between Social Support & Social Network and Health Behavior (사회적 지지, 사회 조직망과 건강행태의 관련성)

  • Park, Jun;Kang, Gil-Won;Tak, Yang-Ju;Chang, Soung-Hoon;Lee, Kun-Sei;Kim, Hyeong-Su
    • Health Policy and Management
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    • v.21 no.4
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    • pp.493-510
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    • 2011
  • Objectives : This study aims to explore how social support and social network are related with health behavior. Methods : The target population was 12,449 people in Chungcheongbuk-do. The sample was accrued for the period of 3 months in 2008 by face to face interview of direct visiting from systematic sampling method. The instruments used in this study were social support, social network and health behavior. Results : There was significant difference in the level of social support and social network by sex, age, educational level, occupation, and monthly income(p<0.05). There was significant difference in the level of social support by alcohol drinking, physical exercise. There was significant difference in the level of social network by smoking, alcohol drinking, physical exercise, obesity(p<0.05). Multivarite analysis shows significant difference in the level of social instrumental support by smoking, physical exercise. It shows significant difference in the level of social emotional support by smoking. It also shows significant difference in the level of social network by smoking, physical exercise. Conclusion : These results suggest that social support and social network may be associated with health behavior. Because this study was cross sectional research, the order was not found between social support, social network and health behavior. Through a study on monitoring, we will obtain more information for relationship.

Development of the Expert Education Program for the Management of Mental Health Prevention (정신건강예방관리 전문직 직무교육 프로그램 개발)

  • Park, Sung-Mi;Lee, Hyo-Young;Im, Hyuk;Chae, Eun-Hee;Kim, Hye-Sook
    • The Korean Journal of Health Service Management
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    • v.6 no.2
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    • pp.219-234
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    • 2012
  • Mental health service facilities implement an effort to meet the increased mental health demands. However, no specific 'mental health expert education program' have been offered yet. This study aimed to develop of the expert education programs which are general programs(GP), and specific programs(SP) for the management of mental health prevention in 3 kinds of facilities, psychosocial rehabilitation centers, homeless facilities, and domestic violence counselling facilities. Data were gathered from the service providers by structured questionnaire, and experts related with mental health by delphi study. We surveyed the management status and present expert programs. Consequently, domains of the education programs were extracted. As results, we identified the type of provider's job & demands for education. Thus, we gained the informations for developing the expert education programs in mental health facilities. GP were composed by 3 domains and 9 programs, and SP were composed by 3 programs each facilities. This study should be helpful in expanding the government educational operations related with mental health prevention areas. Eventually, community mental health will be promoted and socio-economic burdens by mental health problems will be lessened. In addition, it will be a basic evidence for developing specialized programs in a mental health prevention system foundation.

The Effects of Core Competencies on Adaptation of the Major, Career Identity and Career Search Ability in Nursing Students (간호대학생의 직업기초능력이 학과적응, 진로정체감과 진로탐색능력에 미치는 영향)

  • Yun, Young-Mi;Sung, Kyung-Suk;Kim, Eun-Joo
    • Journal of Home Health Care Nursing
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    • v.22 no.1
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    • pp.98-108
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    • 2015
  • Purpose: This study was designed to explore the effects of core competencies on adaptation of the major, career identity and career search ability in nursing students. Methods: A correlational research design was used with the convenient sample of 360 nursing students. After explaining the purpose of this study to the participants, those who signed the consent form were provided with a self-descriptive questionnaire. Results: The highest average score of leadership of core competencies was 5.5 on 7 point-scale. The lowest average score of problem-solving ability was 4.4. There were significant correlations between adaptation of the major, career identity, and career search ability and core competencies, with the exceptions of nursing students. Adaptation of the major could be explained 25% by the instrument application ability, leadership, organizational structure, teamwork and career development. Career identity could be explained 13% by leadership, responsibility, teamwork, and career development. Career search ability could be explained 12% by responsibility, conflict management, teamwork, communication ability and career development. Conclusion: Based on the results, core competencies showed statistically significant effects on adaptation of the major, career identity and career search ability in nursing students. Thus, it is necessary to develop an educational curriculum to improve core competencies, career identify and career search ability.

Analysis of Technical Error of Manual Measurements (직접 측정한 인체치수의 기술적 오차 분석)

  • Park, Jinhee;Nam, Yun Ja
    • Journal of the Korean Society of Clothing and Textiles
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    • v.40 no.4
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    • pp.641-649
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    • 2016
  • Highly precision body measurements represent basic data required by industry and researches who wish to utilize information about the human body. The proficiency and expertise of the measurers have a significant influence on the error and accuracy of data when various parts from multiple subjects' bodies are measured. Therefore, in order to measure accurate body measurements (when measuring bodies directly), it is necessary to conduct objective analyses on errors. This study calculated the Relative Technical Error of Measurement (%TEM) using data that measured each of 24 subjects and discussed errors and methods to reduce errors by conducting comparison analysis based on measured items and objects. The result of analysis indicated that the errors based on age and gender of the objects of measurement were minor; however, there were comparatively distinct differences in measured errors based on measured items. 'Right and left Shoulder Angle' for all measured subjects displayed the greatest errors and standard deviations. 'Height' dimension, Lateral Malleolus Height and Head Height had big errors; in addition, 'Circumference', Neck Base Circumference and Armscye Circumference also had big errors. More careful measurements of such items with big errors require additional educational plan such as a proposal for more objective and detailed measurement methods. Items with small errors but big standard deviations such as Waist Circumference, Calf Circumference, Minimum Leg Circumference, Chest Circumference, Hip Circumference and Waist Circumference confirmed that errors for them greatly decreased with repeated experiments and resultant measurers increased proficiency; consequently, repeated measuring experiments for these items greatly enhance accuracy.

ECONOMIC AND SOCIOLOGICAL ISSUES OF THE TRANSITION TO COMPUTER BASED ENGINEERING EDUCATION

  • Bordia Surek
    • Journal of Engineering Education Research
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    • v.5 no.1
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    • pp.68-76
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    • 2002
  • It is proposed to raise the debate on Engineering and Technical Education at the global economic level and to examine some of the issues facing developing and poorer countries in managing and improving the quality of engineering education in their countries, especially in the context of internet and IT culture After the fall of the Berlin Wall, the world is now divided in two realigned blocks: one of developed(rich or advanced) countries which have a social security safety net for their population and another of developing(or poor) countries which have no such luxuries for their population. For the general public in the developing countries, any engineering or technical degree/diploma is a passport to lifelong wellbeing of an individual and his/her extended family. Therefore, the demand for such qualifications is very high and it is almost a rat race amongst school leavers to get into engineering/technical colleges. In view of this booming demand, there are hundreds of privately funded engineering/technical colleges in countries like Philippines, India, Thailand, etc., besides state funded ones. It is extremely difficult to ensure good quality in this mushrooming scenario. There are also many very small poorly resourced developing countries where there is only one engineering school and/or two-three technical colleges. Products of these schools/colleges work only in their own country and education globalization have little or no meaning for them. Besides highlighting the aforementioned general issues, the Paper also presents a few case studies on problems of accreditation and quality assessment in larger developing countries like India and the Philippines. The Paper also discusses the effects of commercialization on the quality of education and social impacts of IT revolution on educational processes.

Implementation of A Web-based Virtual Laboratory For Digital Logic Circuits Using Multimedia (멀티미디어를 이용한 웹기반 디지털 논리회로 가상실험실의 구현)

  • Kim Dong-Sik;Choi Kwan-Sun;Lee Sun-Heum
    • Journal of Engineering Education Research
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    • v.5 no.1
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    • pp.27-33
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    • 2002
  • Recently, according to the appearance of various virtual websites using multimedia technologies, the internet applications in engineering education have drawn muchinterests. But unidirectional communication, simple text/image-based webpages and tedious learning process without motivation, etc. have made the lowering of educational efficiency in cyberspace. This paper presents a virtual laboratory system which can be creating efficiencies in the learning process. The proposed virtual laboratory system for digital logic circuits provides interactive learning environment under which the multimedia capabilities of world-wide web can be enhanced. The virtual laboratory system is implemented to describe the on-campus laboratory, the learners can obtain similar experimental data through it. The virtual laboratory system is composed of four important components : principle classroom, simulation classroom, virtual experiment classroom and management system. Learning efficiencies as well as faculty productivity are increased in this innovative teaching and learning environment.

The Development of Student Portfolio Management Program to Aid Engineering Education (공학교육지원 학생 포트폴리오 관리프로그램의 개발)

  • Hahn Song-Yop;Lee Myung-Sik
    • Journal of Engineering Education Research
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    • v.8 no.4
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    • pp.20-30
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    • 2005
  • The purpose of this study is the development of SPMP(Student Portfolio Management Program) to aid performance of student program outcomes related to program educational objectives. SPMP is developed to manage accreditation conditions, student materials, academic results through system database and to provide synthetic data for engineering education through statistical process. There are three functions to construct SPMP. First, the function of student information management is organized on various input data related to academic program, resume, etc. Second, the function of accreditation condition management is identified by the evaluation of program outcomes, subject grades, etc. Third, the function of course work data management is made by the operation of the academic reports and productions. The result of this study is expected to effectively provide constructive directions for continuous management in accreditation of engineering education and to support student portfolio for submission in required application.