• Title/Summary/Keyword: 집단 간 차이

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Ability to Maintain Dynamic Posturography in Gymnastic, Free style skier, and Figure skater (여자 체조, 피겨 및 프리스타일 선수의 동적자세 유지능력의 비교)

  • Jeong, Cheol;Park, Woo-Young
    • Journal of the Korean Applied Science and Technology
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    • v.35 no.4
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    • pp.1472-1479
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    • 2018
  • The purpose of this study was to investigate the ability to maintain dynamic posturography(EquiTest) in gymnastic, freestyle skier, and figure skater. A total of 32 subjects(22 athletic woman and 10 collegiate woman) were participated in this study. Computerized dynamic posturography(EquiTest) was adopted to test sensory organization and motor control. EquiTest facilitated the quantification of the role of somatosensory, visual and vestibular systems in the maintenance of postural balance and was also pertinent to measure the reaction time to the stimulus to change center of gravity on force platform. As a result were as follow. There was not difference among with exercise group. But there was a significantly difference with between groups. It was suggested that the acrobatic and physical activity developed the function of visual system and the role of the combination of visual and vestibular system in maintaining postural balance to surrounding stimulus, and presented shorter reaction time in automatic postural response.

Effects of Fun Elements of Online Games and Self-Construals on Gamers' Flow Experience and Game Loyalty (온라인 게임의 재미 요소와 게이머의 자아성향이 게임 몰입과 충성도에 미치는 영향: 사회적 게이머와 비사회적 게이머 집단 간 비교)

  • Kang, Naewon
    • Journal of Korea Game Society
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    • v.17 no.2
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    • pp.63-74
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    • 2017
  • The study examined how the fun elements of online games and gamers' self-construals affected their flow experience and loyalty to games, focusing on the comparison between the social gamers and the asocial gamers. Results showed that, first, there were significant differences between the two groups in the respective fun elements of achievement, challenge, and closeness; second, differences of gamers' self-construals were found in game environment rather than lifeworld environment; third, the flow experience and game loyalty of social gamers were higher than those of asocial gamers; finally, there were significant differences between the two groups in the effects of the fun elements and gamers' self-construals on their flow experience and game loyalty.

Development of Variation Marker of Myzus persicae by Altitude (고도에 따른 지역별 복숭아혹진딧물 집단 변이 마커 개발)

  • Kim, Ju-Il;Kwon, Min
    • Korean journal of applied entomology
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    • v.50 no.4
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    • pp.325-333
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    • 2011
  • This study focused on the green peach aphid, Myzus persicae, as an indicator pest in Chinese cabbage cultivation to develop a genetic marker. We hypothesized that M. persicae gene flow is related to climate change. Genetic variation was analyzed using five local populations collected at different altitudes (157 m, 296 m, 560 m, 756 m and 932 m above sea level) in Hoengseong, Pyeongchang, and Gangneung areas, plus a laboratory strain used as an outgroup. There were no differences in ecological characteristics among strains. Esterase isozyme pattern and inter-simple sequence repeat (ISSR) PCR results showed significantly different bands between laboratory and wild, local populations. However, there was no difference among local populations. Partial fragments of ribosomal RNA (rRNA) and mitochondrial cytochrome oxidase I (mtCO I) were amplified and their nucleotide sequence was analyzed. Single nucleotide polymorphisms (SNPs) were detected in internal transcribed spacer-2 (ITS-2) and mtCO I regions among the five local populations. These SNPs can be use to discriminate different populations of M. persicae to monitor gene flow.

Career counseling of University Students before and after Differences in career maturity verification (대학생의 진로상담프로그램 실시전후의 진로성숙도 차이검증)

  • Kwon, Eun-Kyoung
    • Journal of Digital Convergence
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    • v.11 no.7
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    • pp.75-81
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    • 2013
  • In this study, career counseling collegiate career maturity differences before and after program implementation through proven collegiate career counseling program development and future of the University Career guidance and on the basis of the direction is set. Verification results first college career counseling program has not been applied to the experimental group than in the control group were improved career attitude maturity level.

Effectiveness of golf skills to average score using records of PGA, LPGA, KPGA, KLPGA : Multi-group path analysis (프로골프 경기기록을 활용한 다중집단분석 : 경로분석 적용)

  • Kim, Sae Hyung;Cho, Jung Hwan
    • Journal of the Korean Data and Information Science Society
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    • v.24 no.3
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    • pp.543-555
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    • 2013
  • This study is to analyze effectiveness of golf skills (driving distance, rating of fairway, green in regulation, sand save ratio, recovery ratio, putting average) to average score using records of PGA, LPGA, KPGA, KLPGA. Independent variables were driving distance, rating of fairway, green in regulation, sand save ratio or recovery ratio, putting average. Dependent variable was the scoring average in this study. To analyze these variables, multi-group (PGA vs LPGA, KPGA vs KLPGA, PGA vs KPGA, LPGA vs KLPGA) path analysis was used through AMOS 18.0 program and significance level was set at 0.05. As the result, the variables that show significant differences of path coefficient between PGA model and LPGA model were driving distance and green in regulation to average score. The variables that show significant differences of path coefficient between KPGA model and KLPGA model were driving distance, recovery ratio, and putting average to average score. The variables that show significant differences of path coefficient between PGA model and KPGA model were driving distance, recovery ratio, and putting average to average score. There was not significant difference of path coefficient between LPGA model and KLPGA model.

Population Genetic Variation of Ulmus davidiana var. japonica in South Korea Based on ISSR Markers (ISSR 표지자를 이용한 느릅나무 자연집단의 유전변이 분석)

  • Ahn, Ji Young;Hong, Kyung Nak;Lee, Jei Wan;Yang, Byung Hoon
    • Journal of Korean Society of Forest Science
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    • v.102 no.4
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    • pp.560-565
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    • 2013
  • Population genetic structure and diversity of Ulmus davidiana var. japonica in South Korea were studied using ISSR markers. A total of 45 polymorphic ISSR amplicons were cropped from 7 ISSR primers and 171 individuals of 7 populations. The average of effective alleles and the proportion of polymorphic loci were 1.5 and 89% respectively. The Shannon's diversity index (I) was 0.435 and the expected heterozygosity from the frequentist's method ($H_e$) and the Bayesian inference (hs) were 0.289 and 0.323 respectively. From AMOVA, 4.2% of total genetic variation in the elm populations was explained with the difference among populations (${\Phi}_{ST}=0.042$) and the other 95.8% was distributed within populations. The ${\theta}^{II}$ value by Bayesian method which was comparable to the FST was 0.043. So the level of genetic diversity in the elm populations was similar to that in Genus Ulmus and the level of genetic differentiation was lower than that of others. No population showed a significant difference in the population-specific fixation indices (average of $PS-F_{IS}=0.822$) or the population-specific genetic differentiations (average of $PS-F_{ST}=0.101$). Seven populations were allocated into 3 groups in the UPGMA and the PCA, but the grouping patterns were different. Also, we could not confirm any geographic trend from Bayesian clustering.

The Effect of Preferred Music Listening on Police Officers' Occupational Stress and Fatigue (선호음악 감상이 경찰공무원의 직무스트레스와 피로 감소에 미치는 영향)

  • Kim, Hye Jin;Kim, Eun Jew
    • Journal of Music and Human Behavior
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    • v.14 no.1
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    • pp.41-62
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    • 2017
  • The purpose of this study was to examine the effect that preferred music listening had on police officers' occupational stress and fatigue. The musical intervention took place over a total of six sessions from October 11 to October 19, 2016. At each session, the experimental group (n = 19) received 20 minutes of music listening with individually customized playlists that were compiled based on their preferred music list. The control group (n = 21) simply took a break from work for 20 minutes. Every participant checked his or her occupational stress and fatigue level before and after the experiment using the Occupational Stress Inventory and Subjective Symptoms of Fatigue Test. The data were then analyzed by the SPSS 22.0 statistics program. To examine the homogeneity and pretest-posttest results between groups, an independent t test was conducted, and a paired t test was used to examine the pretest-posttest results within groups. The results confirmed all hypotheses. Findings support that the use of preferred music listening is an effective way to help police officers to control their occupational stress and fatigue. This study used a convenience sample and has limited generalizability. Future research should explore interactive approaches in music therapy as well as receptive music listening for alleviating police officers' occupational stress and fatigue.

An Analysis of the Difference in Awareness on Visual Landscape Control Elements among the Expert Groups (경관제어요소에 관한 전문가집단 간 인식차이 분석)

  • Cho, You-Kyung;Kong, Eun-Mi;Kim, Young-Ook
    • Journal of the Korean Institute of Landscape Architecture
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    • v.39 no.2
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    • pp.29-39
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    • 2011
  • Recent interests in the quality of urban space have raised awareness on the role and importance of landscape planning. Although laws and guidelines are officially ready to be imposed as for landscape planning, we do not have concrete materials that can be utilized in the course of practices. The aim of this paper in this regard is to disclose the possible difference in awareness on 'visual landscape control elements' among experts engaged with urban space planning. The expert groups are distinguished to three which are for a planning, design and engineering and the survey is made by questionnaires. The results are analyzed through basic technology statistics in SPSS and independent-sample t-test provided. The survey is done by tens of 'control elements' and the result is that specially, group 1 and group 2 in mixed landscape has the most discrepancy in awareness on those elements but relatively, they has less discrepancy in awareness on compare with other groups through all landscape area. In case of artificial landscape and mixed landscape in 'landscape controled area', the result for comparing between G1 and G2 is that there are the most discrepancy in awareness which are 7 control elements. In case of mixed landscape in 'landscape promoted area', there are 4 control elements for discrepancy in awareness between G2 and G3 which is quite different. The control elements which show the most discrepancy in awareness is height, floor space and building to land ratio in order. The shape elements has only discrepancy in awareness for comparing between G1 and G2 of artificial landscape in 'landscape controled area'. In terms of the average evaluation score of the appropriateness of these control elements, G1 seems to appreciate the role of these elements in systematic landscape planning more than the other group does. In other words, relatively low scores are given by G2 as for the overall functionality of visual landscape control elements. The texture, floor space and building of land ratio has low evaluation score for all area and types. It means that it should reverify for appropriateness of performance for landscape planning as visual landscape control elements.

A Study on Effects of Edu-Games: Focused on Narratives and Platforms (교육용 게임의 효과성 연구: 내러티브와 플랫폼을 중심으로)

  • Lee, Ji-Young;Jang, Yei-Beech;Ryu, Seung-Ho
    • 한국HCI학회:학술대회논문집
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    • 2007.02b
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    • pp.568-574
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    • 2007
  • 본 실험은 교육을 목적으로 설계된 게임이 그 종류에 따라 사용자의 반응에 차이를 미치는가를 살펴보기 위한 것으로 이를 위해 본 연구는 게임의 다양한 분류 중에서 특히 내러티브와 플랫폼의 존재 여부에 주목하여, 그 특성을 중심으로 사용자의 게임에 관한 평가를 분석하는데 초점을 두고 있다. 이를 위해 두 개의 실험집단을 구성하여 각 집단이 온라인 게임, PSP 게임, 모바일 게임으로 각 플랫폼에서 상용화되어 있는 교육용 게임을 일정 시간 경험하여 보도록 하되, 한 집단에는 내러티브가 제공되고, 다른 집단에는 내러티브가 제공되지 않도록 하여 각 집단 및 플랫폼간의 차이를 비교분석하였다.

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한국기업의 기업탈퇴(企業脫退)(Divestiture)중 자산처분(資産處分)(Sell-off)이 주주부에 미치는 영향 - 영업일부양도(營業一部讓渡)를 중심(中心)으로 -

  • Kim, Won-Gi;Park, Chun-Gwang
    • The Korean Journal of Financial Studies
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    • v.1 no.2
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    • pp.119-152
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    • 1994
  • 본 연구는 한국기업들이 기업자산을 제 3자 혹은 신설기업으로 탈퇴시키므로써, 즉 자산, 제품생산라인, 자회사, 사업부 등을 현금, 증권 등으로 교환하므로써 발생된사건, 특히 자산중 영업일부를 양도한 기업에 있어 주가수익율의 영향을 분석하고자 한다. 분석결과 영업일부를 양도한 기업들은 (+)의 평균초과수익율을 얻는 것으로 나타났다. 이것은 한국증권시장에서 영업(營業) 일부양도(一部讓渡)가 양도기업 株主(주주)의 부(富), 즉 주식(株式)의 시장가치에 정(+)의 영향을 미친다는 것을 의미한다. 그리고 영업 일부양도 후 후속 재무구조 개선집단과 악화 집단간의 시장반응에 있어 악화집단이 오히려 더 큰 정(+)의 시장반응을 보이며 유의적인 큰 차이가 존재했으며, 또한 후속 EPS 증가집단과 EPS 감소집단에 있어서 후속 EPS 증가기업이 더 큰 정(+)의 시장반응을 보이며 유의적인 차이가 존재했다. 이러한 사실로 미루어 볼때 영업(營業) 일부양도(一部讓渡)는 투자자들에 의해 재무구조개선 및 비수익성 영업일부의 양도를 통한 기업수익성(企業收益性)의 증대라는 관점에서 크게 받아들여 지고 있다는 것을 암시해 준다.

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