• Title/Summary/Keyword: convergent response

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Development of Parallel Short Forms of the Convergent Thinking and Problem Solving Inventory Utilizing Item Response Theory : A Case Study of Students in H University (문항반응이론을 적용한 융합적 사고 및 문제해결 역량진단 도구의 병렬 단축형 개발 : H 대학교를 중심으로)

  • You, Hyunjoo;Nam, Na-Ra
    • Journal of Engineering Education Research
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    • v.26 no.3
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    • pp.35-41
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    • 2023
  • The study was conducted to develop two parallel short forms for the Convergent thinking and Problem solving questionnaires which are part of H University's core competency diagnostic tools, based on Multi-Item Response Theory. Item responses of 2,580 students were analyzed using Graded Response Model(GRM) to determine item difficulty and discrimination of each item. The research results are as follows. Two parrallel short tests were developed for the Convergent thinking questionnaire consisting of 12 items which were originally 17 items. Likewise, the Problem solving questionnaire, which originally consisted of 15 questions, was divided into two parallel short forms, each consisting of 9 items. The reliability of the shortened parallel tests was confirmed through internal consistency analysis, and their similarity to the original tests was established through correlation analysis. This study contributed to quality management of competency-based education and programs at H University by developing shortened tests. Based on the results, implications were presented as well as limitations and discussions.

Progress and Challenges in the Development of COVID-19 Vaccines and Current Understanding of SARS-CoV-2-Specific Immune Responses

  • Kim, Kyun-Do;Hwang, Insu;Ku, Keun Bon;Lee, Sumin;Kim, Seong-Jun;Kim, Chonsaeng
    • Journal of Microbiology and Biotechnology
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    • v.30 no.8
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    • pp.1109-1115
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    • 2020
  • The outbreak of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is spreading globally, and the WHO has declared this outbreak a pandemic. Vaccines are an effective way to prevent the rapid spread of COVID-19. Furthermore, the immune response against SARS-CoV-2 infection needs to be understood for the development of an efficient and safe vaccine. Here, we review the current understanding of vaccine targets and the status of vaccine development for COVID-19. We also describe host immune responses to highly pathogenic human coronaviruses in terms of innate and adaptive immunities.

Joint Estimation of Near-Field Source Parameters and Array Response

  • Cui, Han;Peng, Wenjuan
    • Journal of Information Processing Systems
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    • v.13 no.1
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    • pp.83-94
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    • 2017
  • Near-field source localization algorithms are very sensitive to sensor gain/phase response errors, and so it is important to calibrate the errors. We took into consideration the uniform linear array and are proposing a blind calibration algorithm that can estimate the directions-of-arrival and range parameters of incident signals and sensor gain/phase responses jointly, without the need for any reference source. They are estimated separately by using an iterative approach, but without the need for good initial guesses. The ambiguities in the estimations of 2-D electric angles and sensor gain/phase responses are also analyzed in this paper. We show that the ambiguities can be remedied by assuming that two sensor phase responses of the array have been previously calibrated. The behavior of the proposed method is illustrated through simulation experiments. The simulation results show that the convergent rate is fast and that the convergent precision is high.

Some Asymptotic Properties of Conditional Covariance in the Item Response Theory

  • Kim, Hae-Rim
    • Communications for Statistical Applications and Methods
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    • v.7 no.3
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    • pp.959-966
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    • 2000
  • A dimensionality assessment procedure DETECT uses the property of being near zero of conditional covariances as an indication of unidimensionality .This study provides the convergent properties to zero of conditional covariances when the dta is unidimensional, with which DETECT extends its theoretical grounds.

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Development and validation of women's environmental health scales in Korea: severity, susceptibility, response efficacy, self-efficacy, benefit, barrier, personal health behavior, and community health behavior scales

  • Kim, Hee Kyung;Kim, Hyun Kyoung
    • Women's Health Nursing
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    • v.27 no.2
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    • pp.153-165
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    • 2021
  • Purpose: This study aimed to develop the following scales on women's environmental health and to examine their validity and reliability: severity, susceptibility, response efficacy, self-efficacy, benefit, barrier, personal health behavior, and community health behavior scales. Methods: The item pool was generated based on related scales, a wide literature review, and indepth interviews on women's environmental health according to the revised Rogers' protection motivation theory model. Content validity was verified by three nursing professionals. Exploratory factor analysis, convergent validity, and internal consistency reliability were examined. Results: The scales included 10 items on severity, 11 on susceptibility, 10 on response efficacy, 14 on self-efficacy, 8 on benefits, 10 on barriers, 17 on personal health behavior, and 16 on community health behavior. Convergent validity with the environmental behavior scale for female adolescents was supported. The Cronbach's α values for internal consistency were good for all scales: severity, . 84; susceptibility, .92; response efficacy, .88; self-efficacy, .90; benefits, .91; barriers, .85; personal health behavior, .90; and community health behavior, .91. Conclusion: The evaluation of the psychometric properties shows that these scales are valid and reliable measures of women's environmental health awareness and behaviors. These scales may be helpful for assessing women's environmental health behaviors, thereby contributing to efforts to promote environmental health.

A Case of Congenital Progressive Bilateral Convergent & Divergent Strabismus with Unilateral Exophthalmus in Holstein Cattle (선천성 진행성 양측성 내외측성 사시 및 편측성 안구돌출증 홀스타인 1예)

  • Jung, Young-Hun;Hur, Tai-Young;Choe, Chang-Yong;Kang, Seog-Jin;Lee, Hyun-June;Ki, Kwang-Seok;Park, Yung-Sang;Suh, Guk-Hyun;Kim, Jong-Taek
    • Journal of Veterinary Clinics
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    • v.29 no.4
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    • pp.344-347
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    • 2012
  • Bilateral convergent strabismus with exophthalmus(BCSE) is an eye disorder affecting many cattle breeds worldwide. BCSE is the most common in cattle at various types of strabismus. Divergent strabismus is of relatively low incidence than convergent strabismus. This report is the to shown a case of convergent and divergent strabismus with unilateral in the exophthalmus in a heifer Holstein cow. A female Holstein calf born with congenital progressive divergent strabismus in right eye and convergent strabismus in left eye was tested. Ocular and blood examination, and activity were checked from the first week, 8 month, and 16 month after birth. The ocular examination includes general inspection, fixation reflex and menace response. The general inspection is checking the degree of deviation of both eyes from the normal visual axis, which was determined by the amount of sclera permanently visible in the temporal corner of the eye. The stage is divided into 4 stages depending on the degree of deviation. The right eye shown in stage 4 continues after birth and the left eye shown stage 2, stage 3 and stage 4 at 1 week, 8 month and 16 month after birth, respectively. In fixation reflex and Menace response, both eye balls showed a normal response at 1 week, 8 month and 16 month after birth. Blood count and serum chemistry test were performed, but a specific factor was not detected outside the reference range.

A study of kinetic narrative educational contents based on English literature: A convergent approach (영문학 기반 키네틱 교육 콘텐츠의 교육적 유의미성과 현장 활용 방안 탐구)

  • Kim, Eun-Jung;Shin, Dong-il;Kim, Keum-Sun
    • Journal of Digital Convergence
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    • v.14 no.4
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    • pp.43-53
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    • 2016
  • The purpose of this study is to examine the meaningfulness and the possibility of developing kinetic narrative educational contents based on English literature with convergent approaches. To accomplish the objective, this paper examines three areas of research such as kinetic education, English literature education, and total physical response-storytelling method. It introduces the following three stages of development procedure: 1) selecting and analyzing English literature, 2) designing a prototype including the story flow, the movement and the motion interaction design, and 3) constructing motion database using Laban movement analysis. Then, how to apply it to young learners is illustrated with 'the story of the three little pigs,' Finally, implication for the field of young learner English education and English literature is discussed.

Convergent approach of phenomenological methodology about Emergency Nurses' experience of hospital violence (응급실 간호사들의 폭력 경험에 대한 현상학적 방법론의 융합적 접근)

  • Jeong, Young-Hee
    • Journal of the Korea Convergence Society
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    • v.6 no.5
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    • pp.63-75
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    • 2015
  • The aim of this study was to know the experience of emergency nurses on hospital violence and violence's effect on nurses via convergent approach of phenomenological methodology to be known for a good method to study alive human's experience. This study is a qualitative study converged the phenomenological methods and 5 emergency nurses participated in an in-depth interview. From the transcript, 41 significant statements, 17 clusters of theme, 6 categories were extracted. The extracted categories are violence's background, emotional response, physical response, social response, passive coping and active coping. The hospital violence's negative effect on emergency nurses occurred in various sides and the countermeasure is required to prevent violence from hospital setting anymore.

Numerical Model Test of Spilled Oil Transport Near the Korean Coasts Using Various Input Parametric Models

  • Hai Van Dang;Suchan Joo;Junhyeok Lim;Jinhwan Hur;Sungwon Shin
    • Journal of Ocean Engineering and Technology
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    • v.38 no.2
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    • pp.64-73
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    • 2024
  • Oil spills pose significant threats to marine ecosystems, human health, socioeconomic aspects, and coastal communities. Accurate real-time predictions of oil slick transport along coastlines are paramount for quick preparedness and response efforts. This study used an open-source OpenOil numerical model to simulate the fate and trajectories of oil slicks released during the 2007 Hebei Spirit accident along the Korean coasts. Six combinations of input parameters, derived from a five-day met-ocean dataset incorporating various hydrodynamic, meteorological, and wave models, were investigated to determine the input variables that lead to the most reasonable results. The predictive performance of each combination was evaluated quantitatively by comparing the dimensions and matching rates between the simulated and observed oil slicks extracted from synthetic aperture radar (SAR) data on the ocean surface. The results show that the combination incorporating the Hybrid Coordinate Ocean Model (HYCOM) for hydrodynamic parameters exhibited more substantial agreement with the observed spill areas than Copernicus Marine Environment Monitoring Service (CMEMS), yielding up to 88% and 53% similarity, respectively, during a more than four-day oil transportation near Taean coasts. This study underscores the importance of integrating high-resolution met-ocean models into oil spill modeling efforts to enhance the predictive accuracy regarding oil spill dynamics and weathering processes.

Implementation on ADHD Diagnostic Expert System based on DSM Diagnostic Criteria (DSM 진단 기준을 이용한 ADHD 진단 전문가시스템 구현)

  • Hwang, Ju-Bee;Lee, Kang-Hee
    • Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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    • v.7 no.11
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    • pp.515-524
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    • 2017
  • In this paper, we design and implement an expert system for diagnosing ADHD. As a result of the analysis with DSM-IV-TR, the ADHD diagnostic criteria are changed according to the age group. With this analyzed diagnostic, objects and their values are set and rules are created. We design a diagnostic system consisting of 'ADHD diagnostic system engine' and 'user query response program'. The ADHD diagnostic system engine is a rule-based reasoning engine that is implemented in the Prolog language and receives INPUT from the user query response program. By INPUT, the rule is executed based on the ADHD diagnostic criteria and the OUTPUT is sent back to the 'user query response program' by inferring the diagnostic result. The 'user query response program' is implemented in the Python language and serves as an interface for handling conversation with the user. The bridge between 'ADHD diagnostic system engine' and 'user query response program' is performed through the Pyswip library. As a result, the ADHD Diagnostic Expert System will help you plan your treatment with reduced diagnostic costs and use-complexity.