• 정보교육학회논문지
• /
• 제19권3호
• /
• pp.271-278
• /
• 2015

본 연구에서 알고리즘 능력을 측정하여 정보 영재를 판별할 수 있는 도구를 개발하였다. 판별 도구는 Computational Thinking의 Concept을 재구성하여 해당 영역이 중점적으로 포함되어있는 문항을 제작하였다. 문항의 유형을 단일 속성 문항, 복합 동일 속성 문항, 복합 집중 속성 문항으로 나누어 세분화하였으며 문제 해결방식을 전체 스크립트 제작, 스크립트의 일부 수정, 스크립트의 결과 추측하기로 나누어 스크래치 프로그램으로 개발하였다. 개발한 판별도구를 영재학생들에게 적용한 결과 문항의 타당도와 신뢰도가 높은 것으로 나타났다.

• Bulletin of the Korean Chemical Society
• /
• 제24권11호
• /
• pp.1627-1631
• /
• 2003

Molecular modeling was performed to comprehend the chiral recognition of ${\alpha}$-methoxy-${\alpha}$-trifluoromethylphenylacetic acid (MTPA) enantiomers by cyclomaltoheptaose (${\beta}$-cyclodextrin,${\beta}$-CD) and 6-amino-6-deoxy-cyclomaltoheptaose (am-${\beta}$-CD). Monte Carlo (MC) docking coupled to constant temperature molecular dynamics (MD) simulations was applied to the investigation for the ${\alpha}$-methoxy-${\alpha}$-trifluoromethylphenylacetic acid complexation with two different CDs in terms of the relative distribution of the interaction energies. The calculated results are finely correlated with the experimental observations in chiral recognition thermodynamics. Am-${\beta}$-CD as a host showed the superior enantio-discrimination ability to the native ${\beta}$-CD where the amino group of am-${\beta}$-CD was critically involved in enhancing the ability of chiral discrimination via the Coulombic interaction with MTPA.

• 자원환경지질
• /
• 제36권3호
• /
• pp.201-212
• /
• 2003

한반도 남동부의 경상분지에 한국지질자원연구원의 지진관측망을 비롯한 관측소들이 급격히 증가함에 따라, 지진관측의 능력이 최근에 들어 크게 향상되었다. 그러나, 빈번한 중소규모의 화약발파에 의한 진동이 다수 관측되고 있다. 따라서, 이 지역에서 자연지진과 발파에 의한 인공지진의 식별이 중요한 문제로 부상하였다. 이 지역에서의 인공지진과 자연지진의 적절한 식별법을 확립하기 위하여 소규모의 지역지진 43개와 이에 대응되는 인공지진 43개를 선정하였다. 이 연구에서는 주파수 영역에서 Pg파, Sg파 및 Lg파의 스펙트럼 진폭비를 이용하는 기법들이 폭 넓게 검토되었다. 그들 중 Pg/Lg 스펙트럼 진폭비를 이용하는 방법이 가장 좋은 식별법으로 나타났다. 또한, 식별능력을 향상시키기 위하여 Pg/Lg 스펙트럼비에 다변량 판별분석법을 적용하였다. 거리보정이 안된 수직성분에 비하여 거리에 대한 감쇠효과를 보정한 3성분의 Pg/Lg비에 판별분석법을 적용했을 때의 판별능력은 뚜렷한 증가를 보인다. 주파수 대역 4-l4Hz의 범위에서, 거리 보정한 3성분의 Pg/Lg비에 대한 판별분석의 결과 총 분류비율은 0.89%에 불과한 것으로 나타난다.

• 대한방사선기술학회지:방사선기술과학
• /
• 제4권1호
• /
• pp.37-44
• /
• 1981

It is a experimental report to investigate optimum exposure technics in angiocardiography. Because of x-ray absorption and rapid voluntary motion in the heart region, it bound that discrimination ability of the exposed film is being decreased in ACG To circumvent these disadvantage it must be necessary to use short time exposure technics and also high capacity equipment in ACG. But in the case of using the low tube voltage to improve contrast on the exposed film, it will be result in a many difficulties in interpretation of the image due to increased contrast in vertebral images. Therefore the ranges 80 kVp to 90 kVp of could be suitable for the purpose of good contrast and an excellent discrimination ability and under this circumstance the optimum grid ratio for ACG was 8:1 to 12:1.

• 한국콘텐츠학회논문지
• /
• 제14권5호
• /
• pp.144-155
• /
• 2014

본 연구는 장애인 고용의 결정변인에 관한 선행연구가 심리적 특성이 고용에 미치는 영향을 배제했으며, 생의 단계에 따른 고용 결정변인의 차이를 고려하지 못했다는 문제의식으로부터 출발했다. 이와 같은 문제의식에서 본 연구는 첫째, 선행연구에서 고용의 주요 영향요인으로 규명되어 온 인적자본과 함께 심리적 특성을 중심으로 장애인 고용의 결정변인을 규명하고 둘째, 연령집단에 따라 장애인 고용의 결정변인에 어떤 차이가 있는지 밝히고자 했다. 한국복지패널 5차년 자료의 장애인부가조사에 참여한 18세 이상 장애인 1280명의 자료를 이용해 이항로지스틱 분석을 수행했다. 분석결과, 18세에서 40세 이하의 청장년 장애인은 차별을 받은 심리적 경험만이 고용가능성을 유의미하게 낮추었으며, 교육 등 인적자본은 유의미한 영향을 미치지 못하는 것으로 나타났다. 41세 이상 64세 이하의 중년 장애인은 교육수준이 낮고, 건강상태는 높으며, 근로능력이 높을수록 고용 가능성이 유의미하게 증가하는 것으로 나타났다. 65세 이상의 노년 장애인은 근로능력만이 고용가능성을 유의미하게 결정하는 것으로 분석되었다.

• 컴퓨터교육학회논문지
• /
• 제9권6호
• /
• pp.11-18
• /
• 2006

본 연구는 2005년, 2006년 대학수학능력시험 직업탐구영역의 "컴퓨터 일반" 문항을 질적 연구와 양적연구로 분석하였다. 질적 연구로 내용 타당도 검사를 실시하고, 양적연구로 2-모수 문항 반응 모형에 근거한 베이지안(Bayesian) 1.0을 이용하여 문항의 난이도 및 변별도를 측정하였으며 고전검사이론 프로그램인 테스트안(Testan) 1.0을 이용하여 문항의 신뢰도 및 오답지를 분석하였다. "컴퓨터 일반" 영역의 문항들을 분석하여 문항의 질을 높이고 난이도의 정확한 예측을 하여 보다 신뢰도와 변별력 있는 문항을 개발하기 위한 자료로 제시하고자 한다.

• 음성과학
• /
• 제13권3호
• /
• pp.155-167
• /
• 2006

Hearing impairment children possess poor underlying perceptual knowledge of the sound system and show delayed development of segmental organization of that system. The purpose of this study was to investigate the relationship between phonological awareness ability and word identification ability in hearing impaired children. 14 children with moderately severe hearing loss participated in this study. All tasks were individually administered. Phonological awareness tests consisted of syllable blending, syllable segmentation, syllable deletion, body-coda discrimination, phoneme blending, phoneme segmentation and phoneme deletion. Close-set Monosyllabic Words(12 items) and lists 1 and 2 of open-set Monosyllabic Words in EARS-K were examined for word identification. Results of this study were as follows: First, from the phonological awareness task, the close-set word identification showed a high positive correlation with the coda discrimination, phoneme blending and phoneme deletion. The open-set word identification showed a high positive correlation with phoneme blending, phoneme deletion and phoneme segmentation. Second, from the level of phonological awareness, the close-set word identification showed a high positive correlation with the level of body-coda awareness and phoneme awareness while the open-set word identification showed a high positive correlation only with the level of phoneme awareness.

• 한국영재학회:학술대회논문집
• /
• 한국영재학회 2001년도 춘계 학술세미나
• /
• pp.43-72
• /
• 2001

Identification and discrimination the mathematical giftedness must be based on it's definition and factors. So, there must be considered not only IQ or high ability in mathematical problem solving, but also mathematical creativity and mathematical task commitment. Furthermore, we must relate our ideas with the programs to develop each student's hidden potential not to settle only. This study is focused on the discrimination of the recipients who would like to enter the elementary school level mathematical gifted education program. To fulfill this purpose, I considered the criteria, principles, methods, tools and their application. In this study, I considered three kinds of testing tools. The first was KEDI - WISC personal IQ test, the second is mathematical problem solving ability written test(1st type), and the third was mathematical creativity test(2nd type) which were giving out divergent products. The number of the participant of these tests were 95(5-6 grade). According to the test, students who had ever a prize in the level of national mathematical contest got more statistically significant higher scores on 1st and 2nd type than who had ever not, but they were not prominent on the phases of attitude, creative ability or interest and willing to study from the information of the behavior characteristics test. Using creativity test together with the behavior characteristics test will be more effective and lessen the possibility of exclusion the superior.

• 여성건강간호학회지
• /
• 제5권3호
• /
• pp.265-276
• /
• 1999

Female nurses in Korea have historically experienced discrimination on the basis of their gender as part of the traditional society views on woman and as a result of the male dominated hospital environments. This discrimination may interfere with the ability of female nurses to promote the health of their patients. To better understand this bias, we collected and analyzed 16 cases of alleged sexual discrimination reported by female nurses with more than 5 years work experience. The cases were classified into 10 subjects and further into 4 categories: personnel administration, daily working environment, female gender bias, and health care delivery. There were 7 cases (11.3%) of unjust personnel changes consisting of demotion(1), termination(4), and reallocation of position(3). Twenty three (37.1%) of cases related to problems in the daily workplace including biases in communication between female nurses and male physicians(12), daily work(8), and responsibility for adverse outcomes(3). We noted 17 cases (27.4%) of female gender bias as reported by female nurses(7), female physicians(7), and female patients(3). Lastly, there were 15 (24.3%) cases of problems with health care delivery due to sexual discrimination, including enrollment in the health care system(4),and decisions regarding medical care(4). These results suggest that sexual discrimination towards women is pervasive in the Korea hospitals, not only towards female nurses but also towards female physicians and patients. More discriminatory practices in a timely fashion such that better nursing care can be provided to patients and their families.

• 대한치과기공학회지
• /
• 제44권3호
• /
• pp.104-110
• /
• 2022

Purpose: This study analyzes the difficulty and discrimination of the paper-based test (PBT) and the computer-based test (CBT) according to item response theory, focusing on the National Dental Technician Examination. Methods: A mock test was conducted from September 15 to 23, 2020, and the final 179 (1 out of 180 absentees)people were the subjects of this study. Both frequency analysis and factor analysis were performed. The collected data were analyzed using IBM SPSS Statistics ver. 18.0 (IBM) and jMetrik programs. The significance level was set to 0.05. Results: The difficulty of the mock test was more easily responded to in CBT. It was also predicted that the CBT could better measure the ability of test takers than the PBT could. Conclusion: The difficulty, discrimination, and reliability of the questions were not affected by the examination method through the mock test. The feasibility of a future change to the CBT was confirmed by the National Dental Technician Examination.