• Title/Summary/Keyword: Individual Differences

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A Statistical Study on the Differences in R&D Capabilities of Individual Companies from an Industrial Perspective: Maritime and Fisheries Industry Case (산업적 관점에서 개별 기업들의 연구개발역량 차이에 대한 통계적 고찰: 해양수산 산업 사례)

  • Sang-Gook Kim;Boong Kee Choi
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.45 no.4
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    • pp.199-209
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    • 2022
  • As the uncertainty of technology development and market needs increases due to changes in the global business environment, the interest and demand for R&D activities of individual companies are increasing. To respond to these environmental changes, technology commercialization players are paying great attention to enhancing the qualitative competitiveness of R&D. In particular, R&D companies in the marine and fishery sector face many difficulties compared to other industries. For example, the R&D environment is barren, it is challenging to secure R&D human resources, and it is facing a somewhat more difficult environment compared to other sectors, such as the difficulty in maintaining R&D continuity due to the turnover rate of researchers. In this study, based on the empirical data and patent status of private companies closely related to the R&D technology status, big data analysis, and simulation analysis methods were used to identify the relative position of individual companies' R&D capabilities and industrial perspectives. In this study, based on industrial evidence and patent applications closely related to the R&D technology status, the R&D capabilities of individual companies were evaluated using extensive data analysis and simulation analysis methods, and a statistical test was performed to analyze if there were differences in capabilities from an industrial point of view. At this time, the industries to be analyzed were based on all sectors, the maritime industry, the fisheries industry, and the maritime industry integration sector. In conclusion, it was analyzed that there was a certain level of difference in the R&D capabilities of individual companies in each industry sector, Therefore when developing a future R&D capability system, it was confirmed that it was necessary to separate the population for each industry and establish a strategy.

CARIES PATTERNS IN PRIMARY DENTITION BY CARIES EXPERIENCE OF INDIVIDUAL TEETH (치아별 우식경험도로 본 유치열의 우식패턴에 관한 연구)

  • Lee, Jong-Seon;Lee, Kwang-Hee;Kim, Dae-Eup
    • Journal of the korean academy of Pediatric Dentistry
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    • v.26 no.1
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    • pp.1-13
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    • 1999
  • To study the caries patterns in primary dentition, 719 preschool children, 4-6 years old, were examined for their caries activity(salivary reductase activity) and caries experience of individual teeth. Teeth groups were made by cluster analysis using dft indexes of individual teeth as criteria. The six major teeth groups in the order of dft index from high to low were (1) lower primary molars, (2) upper primary molars, (3) upper central incisor, (4) upper lateral incisor, (5) canines, and (6) lower incisors. There were significant differences in dft index between teeth groups except upper lateral incisor and canines. Upper and lower primary molars showed the highest correlation in dft index, and the next couples were upper central incisors and upper lateral incisors, upper lateral incisor and canines, upper central incisor and canines, upper lateral incisor and upper primary molars, and canines and upper primary molars in descending order. Upper first primary molar showed the greatest differences in dft index between caries activity levels.

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Tracking of an Individual Fish by Use of the Ultrasonic Tag (초음파표식에 의한 단체어의 행동 추적)

  • 신형일
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.25 no.2
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    • pp.54-60
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    • 1989
  • This paper described on the tracking of an individual fish at the fishing ground of set net by use of a small ultrasonic fish tag. The apparatuses used were composed with a tag, three receivers and two time-interval counter oscilloscope. A pulsed ultrasonic transmitter tag fitted to back of a dorsal fin of a yellowtail specimen, Seriola quinqueradidta TEMMINCK et SCHLEGEL is tracked by measuring differences in the time of arrival of the acoustic pulses at an arrangement of three receivers in the freeding tank. The successive positions of the fish were calculated from the differences in the received time of the signals. A fish carying the tag was tracked in the fishing ground of set net by use of the hydrophone and Loran-C. The results of the tests showed that this method gave good positional information to track the movement of an individual fish in the fishing ground of set net.

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Pharmacokinetics of Caffeine in Caffeine Sensitive and Non-Sensitive Volunteers, and in the Obses Rat and the Lean Rat (카페인 약리작용에 민감한 지원자와 둔감한 지원자 및 뚱뚱한 쥐와 마른 쥐에 대한 카페인 약물동태 비교)

  • 윤정옥;권광일
    • YAKHAK HOEJI
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    • v.37 no.4
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    • pp.341-349
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    • 1993
  • To determine the reason of individual variation of the effect of caffeine, the absorption and the disposition of caffeine were studied in caffeine sensitive and caffeine nonsensitive volunteers. And also to study the effect of obesity on caffeine pharmacokinetics, the caffeine disposition in the obese rat and in the lean rat were investigated respectively. In result the caffeine sensitive group showed a longer terminal half-life of caffeine(7.35$\pm$0.71 hr : 5.49$\pm$0.73 hr) and a larger AUC (55.42$\pm$9.09 $\mu\textrm{g}$.$ml^{-1}$.hr:44.0$\pm$7.81$\mu\textrm{g}$.$ml^{-1}$.hr) than that of caffeine non-sensitive group without statistical significance. The obese rat showed a longer terminal half-life (3.47 hr : 2.31 hr) and a larger AUC(35.3 $\mu\textrm{g}$.$ml^{-1}$.hr:26.97$\mu\textrm{g}$.$ml^{-1}$.hr) than that of the lean rat. But there was no correlation in the amount of daily caffeine consumption and obesity. In conclusion, we suggest that the individual variation of the effect of caffeine are being caused from the individual differences of caffeine susceptibility or tolerance rather than the differences of the genetic metabolic capacity or metabolic tolerance.

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The Influence of Creator Information on Preference for Artificial Intelligence- and Human-generated Artworks

  • Nam, Seungmin;Song, Jiwon;Kim, Chai-Youn
    • Science of Emotion and Sensibility
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    • v.25 no.3
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    • pp.107-116
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    • 2022
  • Purpose: Researchers have shown that aesthetic judgments of artworks depend on contexts, such as the authenticity of an artwork (Newman & Bloom, 2011) and an artwork's location of display (Kirk et al., 2009; Silveira et al., 2015). The present study aims to examine whether contextual information related to the creator, such as whether an artwork was created by a human or artificial intelligence (AI), influences viewers' preference judgments of an artwork. Methods: Images of Impressionist landscape paintings were selected as human-made artworks. AI-made artwork stimuli were created using Google's Deep Dream Generator by mimicking the Impressionist style via deep learning algorithms. Participants performed a preference rating task on each of the 108 artwork stimuli accompanied by one of the two creator labels. After this task, an art experience questionnaire (AEQ) was given to participants to examine whether individual differences in art experience influence their preference judgments. Results: Setting AEQ scores as a covariate in a two-way ANCOVA analysis, the stimuli with the human-made context were preferred over the stimuli with the AI-made context. Regarding the types of stimuli, the viewers preferred AI-made stimuli to human-made stimuli. There was no interaction effect between the two factors. Conclusion: These results suggest that preferences for visual artworks are influenced by the contextual information of the creator when the individual differences in art experience are controlled.

Genetic Differences within and between Populations of Korean Catfish (S. asotus) and Bullhead (P. fulvidraco) Analysed by RAPD-PCR

  • Yoon, Jong-Man;Kim, Jong-Yeon
    • Asian-Australasian Journal of Animal Sciences
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    • v.17 no.8
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    • pp.1053-1061
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    • 2004
  • Of the 20 arbitrarily chosen primers, six oligonucleotides decamer primers were used on the basis of the number of the polymorphisms generated in catfish (Silurus asotus) from Yesan and bullhead (Pseudobagrus fulvidraco) from Dangjin in Korea. Six primers were used generating a total of 602 scorable bands in catfish and 195 in bullhead population, respectively, ranging in size of DNA fragments from less than approximately 100 to larger than 2,000 base pairs (bp). Six primers yielded 199 polymorphic fragments (33.1%) in catfish and 47 (24%) in bullhead, respectively. In the present study, a total of 328 common fragments (an average of 54.7 per primer) were observed in catfish population, whereas 84 (an average of 14.0 per primer) in bullhead. The total number of specific fragments in catfish and bullhead population were 76 and 64, respectively. In catfish population, random decamer, OPA-17 (GACCGCTTGT) generated the highest number of fragments (a total of 141) in comparison with other primers used, with an average of 11.8. The common bands in the molecular weight of 300 bp generated by random primer OPA-06 (GGTCCCTGAC) were present in every individuals in bullhead population. The major polymorphic bands in the molecular weight of 100 bp generated by OPA-17 were identified in lane 14, 15, 17, 18, 19 20 and 21, which were identifying species in bullhead population. The average bandsharing values (BS values) of all of the samples within catfish population ranged from 0.575 to 0.945, whereas 0.063-1.000 within bullhead population. The bandsharing value (index of similarity between individuals) between individual No. 5 and No. 9 showed the highest level within catfish population, whereas the bandsharing value between individual No. 1 and No. 2 showed the lowest level. The single linkage cluster analysis resulted from four primers, indicating four genetic groupings composed of group 1 (C1-C10, all of the catfish samples), group 2 (B11, B12, B13, B14, B16, B17, B18, B19), group 3 (B15) and group 4 (B20 and B21). The dendrogram reveals close relationships between individual identities within two species populations and individuals derived from the same ancestor, respectively. However, genetic distances between two species populations ranged from 0.124 to 0.333. The shortest genetic distance (0.042) displaying significant molecular differences was between individual No. 6 and No. 9 catfish population. The shortest genetic distance (0.033) displaying significant molecular differences also was between individual No. 18 and No. 19 in bullhead population. Reversely, the genetic distance of individual No. 20/21 among individuals in bullhead population was highest (0.333). This result showed that bullhead No. 20 and 21 were distinct from other individuals within bullhead population.

Pharmacodynamic principles and target concentration intervention

  • Holford, Nick
    • Translational and Clinical Pharmacology
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    • v.26 no.4
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    • pp.150-154
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    • 2018
  • This tutorial reviews the principles of dose individualisation with an emphasis on target concentration intervention (TCI). Once a target effect is chosen then pharmacodynamics can predict the target concentration and pharmacokinetics can predict the target dose to achieve the required response. Dose individualisation can be considered at three levels: population, group and individual. Population dosing, also known as fixed dosing or "one size fits all" is often used but is poor clinical pharmacology; group dosing uses patient features such as weight, organ function and comedication to adjust the dose for a typical patient; individual dosing uses observations of patient response to inform about pharmacokinetic and pharmacodynamics in the individual and use these individual differences to individualise dose.

A Study on Situational Clothing Behavior by level of Self-Monitoring of Consumer (소비자의 자아조정 수준에 따른 상황별 의복행동 연구)

  • 이은숙
    • Journal of the Korean Home Economics Association
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    • v.35 no.6
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    • pp.143-155
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    • 1997
  • The purpose of this study is to compare the differences of clothing behavior by the level of self-monitoring under given social situations. The result of this study is drown from the analysis of the survey, gathered from the 522 female students of universities reside in Seoul, by using the method of convenience sampling. The statistical methods used to test the data were MANOVA and chi-square test. The results of this study can be summarized s follows; first, as a result of analyzing the differences of situational self-image pursuits among situations depending individual's self-monitoring levels, it was found that the pursuits changes among situations regardless of the self-monitoring levels. Thus, this hypothesis could not be verified. Second, as a result of analyzing the changes of priority of clothing selection factors among situations depending on individual's self-monitoring levels, it was found that the priority factors changed among situations regardless of the self-monitoring levels.

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Occupational Outlooks of Senior High School Female Students (일반계와 실업계 고등학교 여학생의 직업관 비교)

  • Lee, Hyang-Sook;Cho, Jae-Soon
    • Korean Journal of Human Ecology
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    • v.3 no.1
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    • pp.81-93
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    • 1994
  • The purpose of this study is to investigate the differences in individuals and family characteristics between general and vocational high school female students, and the impacts of the characteristics on the their occupational outlook. The number of 792 female students in 4 general and 5 vocational high schools in Chongju area were sampled during September 6-10, 1993. There are more differences in family characteristics rather than individual characteristics between two types of high school female students. Both family and individual characteristics influence the occupational outlooks of the respondents. Therefore, the types of school affect their occupational outlooks. Over 50% of vocational students want to have a junior college education.

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Effects of Individual Self-Regulated Cognitive Strategies and Public Education on Academic Achievement : Application of the Hierarchical Linear Model (개인의 자기조절 인지전략과 공교육 수업제도가 학업성취에 미치는 효과 : 위계적 선형모형의 적용)

  • Lee, Ju-Rhee
    • Korean Journal of Child Studies
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    • v.30 no.4
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    • pp.87-97
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    • 2009
  • This study used Hierarchical Linear Modeling analysis to investigate the effects of individual self-regulated cognitive strategies and public education on middle school students' academic achievement. Participants were 6389 (boys 3287, girls 3102) middle school students from the 2005 data of the Korea Education Longitudinal Study. Results were as follows : (1) there were significant differences among different schools in middle school students' academic achievement, i.e. 20% of variance in English achievement and 15% of variance in mathematics achievement were explained by school differences. (2) Students' elaboration and meta-cognitive strategy influenced academic achievement positively. (3) Predictor variables by ability grouping, supplementary class, and/or self-learning class had no significant effects on students' academic achievement.

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