• 제목/요약/키워드: concordance

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Analysis of Test-retest Reliability of Individual Items in a Preliminary From of Child-rearing Attitude Scale (양육태도검사 예비형의 문항검사―재검사 신뢰도의 분석)

  • 차재호
    • Journal of the Korean Home Economics Association
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    • v.20 no.2
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    • pp.135-140
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    • 1982
  • As a step preliminary to the factor-analysis of a child-rearing attitude scale under construction, its preliminary form containing a total of 368 self-answered questions was administerd to 88 married women with one or more children in the grade school age. all graduates of colleges and in possession of a home telephone and a house, twice from one week apart. The test-retest correlation coefficients, calculated for each test item based on the subject's choice among the three response alternatives on two test ocasions, ranged from .80 to .10. The cut-off point of r=.41 or lower led to the elimination of 48 items. As a point of incidental interest, the rate of response concordance. The namber of subjects giving the same categroy response on two occasions was calculated for each item and it was correlated with its test. retest correlation coefficient. The two different indices of item test-retest reliability were found not related to each other. Empirical evidence, as well as rational justifications, was presented to show that the correlation coefficient is the better of the tow indices of item test-retest reliability.

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Development of Methods to lmprove the Reliability of ELECTRE (복합기준 평가방법 ELECTRE의 신뢰도 증진을 위한 방안 연구)

  • 이인성
    • Journal of the Korean Institute of Landscape Architecture
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    • v.23 no.1
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    • pp.23-38
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    • 1995
  • ELEECTRE is a less demanding and potentially Bffective multiattribute evaluation method for pre-editing proeedure. The method, however, was developed based on probabilistic mathematicsand its reliability has never'been emprieally tested. This article examined the reliability of ELECTRo under various conditions of linear and non-linear utility func- tions using a Monte-Carlo shnulation, and found the method eausea a considerably high rate of error. To enhance the reliability of ELECTRE, two ways of modi(ication - adjust- ment of threshold values of concordance and discordance matrices, and adjustment of the required nunlber of probably-dominant alternatives to eliminate a probably-dominated alternative - were suggested, and their effctiveness was also tesed by a Monte-Carlo simulation. The simulation result chows that these modifications cponsiderably improve the reliability of ELECTRE, and yet maintain a reasonably high level of efficiency. Through these modifications, ELECTRE can be used as an efficient and feliable pre-editing method. Ways to implement ELECTRE in the construction of plainning decision support systens were discussed. The impli(els combination of this method and other multiattribute evaluation methods will help to create more effective decision suport systems.

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Kinect Sensor- based LMA Motion Recognition Model Development

  • Hong, Sung Hee
    • International Journal of Advanced Culture Technology
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    • v.9 no.3
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    • pp.367-372
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    • 2021
  • The purpose of this study is to suggest that the movement expression activity of intellectually disabled people is effective in the learning process of LMA motion recognition based on Kinect sensor. We performed an ICT motion recognition games for intellectually disabled based on movement learning of LMA. The characteristics of the movement through Laban's LMA include the change of time in which movement occurs through the human body that recognizes space and the tension or relaxation of emotion expression. The design and implementation of the motion recognition model will be described, and the possibility of using the proposed motion recognition model is verified through a simple experiment. As a result of the experiment, 24 movement expression activities conducted through 10 learning sessions of 5 participants showed a concordance rate of 53.4% or more of the total average. Learning motion games that appear in response to changes in motion had a good effect on positive learning emotions. As a result of study, learning motion games that appear in response to changes in motion had a good effect on positive learning emotions

Observation of Ferroelectric Domain Evolution Processes of Pb(Zr,Ti)O3 Ceramic Using Piezoresponse Force Microscopy (Piezoresponse Force Microscopy를 이용한 Pb(Zr,Ti)O3 세라믹의 단계적 Poling에 의한 강유전체 도메인 진화 과정 관찰)

  • Kim, Kwanlae
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.32 no.1
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    • pp.20-24
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    • 2019
  • Ferroelectric material properties are strongly governed by domain structures and their evolution processes, but the evolution processes of complex domain patterns during a macroscopic electrical poling process are still elusive. In the present work, domain-evolution processes in a PZT ceramic near the morphotropic phase-boundary composition were studied during a step-wise electrical poling using piezoresponse force microscopy (PFM). Electron backscatter diffraction was used with the PFM data to identify the grain boundaries in the region of interest. In response to an externally the applied electric field, growth and retreat of non-$180^{\circ}$ domain boundaries wasere observed. The results indicate that ferroelectric polarization-switching nucleates and evolves in concordance with the pattern of the pre-existing domains.

A Study on the Selection of Strategic Industry in Gyeonggi Province (경기도 지역 전략산업 선정에 관한 시론적 연구)

  • Kim, Shin-Pyo
    • Journal of Industrial Convergence
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    • v.12 no.2
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    • pp.16-23
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    • 2014
  • The aim of this study is to find the strategic industries that fulfills the on-site demands of the Gyeonggi province region related to the advancement and development of the local industries. As the results of the analysis, the 4 major strategic industries in the Gyeonggi province region were determined to be (1) electronic component, computer, visual, acoustic and telecommunication equipment manufacturing, (2) pulp, paper and paper product manufacturing, (3) medical substances and pharmaceutical product manufacturing, and (4) rubber and plastic product manufacturing. The industry of concordance between the 4 major strategic industry of the Gyeonggi province determined in this Study and the 13 future growth engine industry of Korea was the area of intelligent semiconductor. Accordingly, it was analyzed that there is a need to strategically cultivate the electrical and electronic telecommunication device industry, which is ranked the $1^{st}$among the strategic industries of Gyeonggi province by generating synergic effects with the policy of the government for nurturing of intelligent semiconductor industry.

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A Study Comparing the Han Period Bamboo Slats of the Beijing University Collection with the Laoguanshan Collection (북경대학 소장 한대의간(漢代醫簡)과 노관산 의간(老官山醫簡)의 비교 연구)

  • Kim, Beomsu;Kim, Kiwang
    • Journal of Korean Medical classics
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    • v.36 no.1
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    • pp.33-43
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    • 2023
  • Objectives : Overlapping contents between two recently discovered Han period bamboo slats, the so-called "Beidahanjian" and the "Liushibingfang" have been identified. This study aims to present new knowledge that could be inferred from the concordance of these two texts. Methods : The most recent original texts of the medical part of the Beidahanjian and medical texts excavated from the Laoguanshan in addition to the Liushibingfang were compared with each other to determine identical parts. The meaning of these concordances was explored. Results : Identical sentences in two verses in the Beidahanjian and the Laoguanshan were identified. Conclusions : The Beidahanjian is a credible Western Han period text, of which the medical bamboo slats are likely to comprise an independent text that is a combination of ancient folk prescriptions and those of doctors.

Computational viscoelastic modeling of strain rate effect on recycled aggregate concrete

  • Suthee Piyaphipat;Boonchai Phungpaingam;Kamtornkiat Musiket;Yunping Xi
    • Computers and Concrete
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    • v.32 no.4
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    • pp.383-392
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    • 2023
  • The mechanical properties of Recycled Aggregate Concrete (RAC) with 100 percent Recycled Coarse Aggregate (RCA) under loading rates were investigated in depth. The theoretical model was validated utilizing the RAC elastic modulus obtained from cylindrical specimens subjected to various strain rates. Viscoelastic theories have traditionally been used to describe creep and relaxation of viscoelastic materials at low strain rates. In this study, viscoelastic theories were extended to the time domain of high strain rates. The theory proposed was known as reversed viscoelastic theory. Normalized Dirichlet-Prony theory was used as an illustration, and its parameters were determined. Comparing the predicted results to the experimental data revealed a high level of concordance. This methodology demonstrated its ability to characterize the strain rate effect for viscoelastic materials, as well as its applicability for determining not only the elastic modulus for viscoelastic materials, but also their shear and bulk moduli.

Sex/gender differences in gastrointestinal endoscopy from the perspective of patients and gastroenterologists

  • Nayoung Kim
    • Clinical Endoscopy
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    • v.56 no.3
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    • pp.268-282
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    • 2023
  • The sex/gender of gastroenterologists impact patients' satisfaction, compliance, and clinical outcomes. For instance, female gastrointestinal (GI) endoscopist-patient gender concordance improves health-related outcomes. This finding suggests that it is important to increase the number of female GI endoscopists. While the number of women in the field of gastroenterology is increasing in the United States and Korea by over 28.3%, it is not enough to account for the gender preferences of female patients. GI endoscopists are at a high risk of endoscopy-related injuries. However, there is a different distribution of muscle and fat; male endoscopists are more affected in their back, while females are more affected in the upper extremities. Women are more susceptible to endoscopy-related injuries than men. There is a correlation between the number of colonoscopies performed and musculoskeletal pain. Job satisfaction is lower in young female gastroenterologists (30' and 40') than in the opposite gender and other ages. Thus, it is important to address these issues in the development of GI endoscopy.

Geant 4 Monte Carlo simulation for I-125 brachytherapy

  • Jie Liu;M.E. Medhat;A.M.M. Elsayed
    • Nuclear Engineering and Technology
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    • v.56 no.7
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    • pp.2516-2523
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    • 2024
  • This study aims to validate the dosimetric characteristics of Low Dose Rate (LDR) I-125 source Geant4-based Monte Carlo code. According to the recommendation of the American Association of Physicists in Medicine (AAPM) task group report (TG-43), the dosimetric parameters of a new brachytherapy source should be verified either experimentally or theoretically before clinical procedures. The simulation studies are very important since this procedure delivers a high dose of radiation to the tumor with only a minimal dose affecting the surrounding tissues. GEANT4 Monte Carlo simulation toolkit associated brachytherapy example was modified, adapted and several updated techniques have been developed to facilitate and smooth radiotherapy techniques. The great concordance of the current study results with the consensus data and with the results of other MC based studies is promising. It implies that Geant4-based Monte Carlo simulation has the potential to be used as a reliable and standard simulation code in the field of brachytherapy for verification and treatment planning purposes.

Concordance of Seropositivity between Helicobacter pylori and Hepatitis A Virus IgG in Children of Gwangju and Chonnam Area (광주.전남 지역에 거주하는 소아에서 Helicobacter pylori와 A형 간염 바이러스의 혈청 IgG 항체 양성률 비교)

  • Kim, Seon-Young;Kim, Young-Ok;Chung, Hae-Yul;Kim, Byung-Ju;Ma, Jae-Sook
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.4 no.2
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    • pp.191-198
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    • 2001
  • Purpose: This study was undertaken to investigate the seroepidemiologic pattern of Helicobacter pylori (H. pylori) and hepatitis A virus (HAV) infections in children. Methods: A total of 315 serum samples were obtained from healthy children, living in Gwangju and Chonnam area. All serum samples were assayed for H. pylori IgG level using enzyme immunoassay techniques. HAV IgG level in serum were tested by a competitive radio-immunoassay in 215 subjects. The age-specific seroprevalence of H. pylori and HAV was separately analysed. The concordance of seropositivity and seronegativity between H. pylori and HAV infection was examined by the kappa statistic analysis. Results: Seropositivity was found in 17.5% (55/315) and 30.2% (65/215) of the subjects for H. pylori and HAV, respectively. Cross-tabulation of these data showed that 21 subjects (9.8%) were seropositive and 135 (62.8%) were seronegative for both H. pylori and HAV, 15 (7.0%) were seropositive for only H. pylori and 44 (20.5%) for only HAV. The seroprevalence of H. pylori and HAV increased significantly with age. There was a slight agreement between H. pylori and HAV seropositivity (${\kappa}$=0.26). Conclusion: This study shows a slight similarity in the concordance of seropositivity and seronegativity between H. pylori and HAV infection and provides evidence that H. pylori and HAV may share a common mode of transmission.

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