• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.6
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• pp.448-459
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• 2019

The purpose of this study is to investigate the differences between children's internal variables (gender, temperament, development) and environmental variables (teaching efficacy, teaching - child interaction, classroom environment) The data collected for this study were analyzed using descriptive statistics, reliability analysis, correlation analysis, cluster analysis, and t-test using the SPSS 22.0 program. The results are as follows. First, the peer interaction of the infant showed a difference in sex between the types. Second, children's peer interaction showed differences in interstitial temperament, language development, and cognitive development. Third, the peer interaction of young children was different between the types of environment variables such as teaching efficacy, teacher - infant interaction, and classroom environment. As a result, it is suggested that the children's social temperament will lead to healthy peer interaction, and that language development and cognitive development will lead to a positive developmental process. In this study, the meaning and meaning of children's intergenerational behaviors in children's gender and temperament, language and cognitive development, and environmental variables such as teaching efficacy, teacher - infant interaction, I checked. In addition, it is meaningful that the positive and negative peer interactions are segmented and analyzed in detail to examine the peer interaction of infants. However, the limitation of this study is that it is not possible to investigate all the fields belonging to the infant's personal variables and environmental variables.

• The Journal of the Petrological Society of Korea
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• v.9 no.2
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• pp.99-118
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• 2000

The variation of Na(A), K, Na(M4), A l O and Al(VI)+Fe3++Ti+Cr in the zonal amphiboles from the amphibolites of the Hwanggangri area indicates that the tschermakite-, edenite- and glaucophane substitutions are higher in the rim than in the core, in which actinolite changes to hornblende with going outward from core to rim. The contents of substitutional elements of hornblende~ of three samples@l29-2, M76-2, M78), which include diopside and greenish brown hornblende and are thought to represent the highest metamorphic grade, are lower than those of rim homblendes of the lower metamorphic grade and are higher than those of core actinolite that they conform to the middle domain in those of the whole amphiboles. Considerations about the origin of zonal amphiboles are as follows. Firstly, two samples(R102-1, R210-9) have the same amphibole composition like core is actinolitic hornblende, and rim is magnesian hastingsite although plagioclases such as albite(R102-1) and labradorite (R210-9) show the wide compositional difference. It is impossible to produce both albite and labradorite by one metamorphic event. Judging from this wide compositional difference, the existence of zonal amphiboles does not indicate the miscibility gap but is thought to be the result of the polymetamorphism. Secondly, the crystallographically sharp and gradational interfaces between actinolite and hornblende fonned in the amphibolites rgardless of the distance from the granite. In case of the samples(R210-9, M128, M130) having the sharp interface between two amphiboles, the plagioclase show the compositions produced at the low grade and the medium grade. Because such variable compositions of plagioclase indicates the overprinting of metamorphism of higher metamorphic grade than that of the formation of miscibility gap, it implies that zonal amphiboles were formed by polymetarnorphism. In case of the gradational interface between two amphiboles, this texture is also thought to be the effect of polymetamorphism from the fact that this texture mainly occur near the granite and from the consideration of the metamporphic grade. The relationship between the compositional variations of the amphiboles and the pressure types of metamorphism suggests that actinolitic core is considered to be grown by the metamorphism of medium pressure, while hornblende rim is shown to have genetic relations with the metamorphism of low pressure type.

• Journal of the Korea Society of Computer and Information
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• v.25 no.1
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• pp.101-107
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• 2020

We propose a realistic seeing through visualization methods in mixed reality environment. When a user wants to see specific location beyond a wall in indoor environment. The proposed system recognizes and registers the selected area using environment modelling and feature-based tracking. Then the selected area is diminished and the specific location is visualized in real-time. With the proposed seeing through methods, a user can understand spatial relationship of the building and can easily find the target location. We conducted a user study comparing the seeing through method to conventional indoor navigation service in order to investigate the potential of the proposed seeing through method. The proposed seeing through method was evaluated in navigation time in comparison with conventional approach. The proposed method enable users to navigate target locations 30% faster than the conventional approach.

• The Korean Journal of Pharmacology
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• v.28 no.1
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• pp.41-48
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• 1992

A concentration of 0.01 mM bupivacaine was necessary to maintain approximately 50% depression of contractility of rat atria suspended in a modified Krebs-Ringer bicarbonate glucose medium, pH 7.4 at $30^{\circ}C$. Sodium pyruvate, sodium acetate, and fructose partially restored the contractility of the bupivacaine-depressed atria. However, 20 mM glucose had no effect on the bupivacaine-depressed atria, although this concentration of glucose markedly increased the contractility of normal atria not to be exposed to bupivacaine. Contractility of normal atria was not significantly influenced by sodium pyruvate, sodium acetate, and fructose. The results suggested that at least part of the negative inotropic action of bupivacaine is the result of inhibition of glucose uptake or utilization in the glycolytic pathway, and further pinpoint the blockade as an early step in the glycolytic sequence prior to the phosphofructokinase step.

• Proceedings of the Korea Water Resources Association Conference
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• 2015.05a
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• pp.266-266
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• 2015

기후변화로 인한 다양한 문제는 전 세계적인 사항이며, 그 중 물과 관련한 사항은 가장 큰 문제로 주시되고 있다. 물 관련 인프라와 산업이 미비한 국가에서는 다양한 방법을 통해 자국의 물 공급 등 수자원 문제를 해결하려 하고 있으며, 이는 국내에서 물 산업의 해외진출 기회로 작용하고 있다. 본 연구에서는 해외 수자원 인프라 구축으로 인한 실제적인 효과성을 분석하고자 스리랑카 Galle 광역시 상수도 사업을 대상으로 하여 다양한 효과적 측면 중 사회적 측면인 지역주민의 삶의 질 향상, 경제 활성 기여, 성 인지도 제고, 지속가능성 제고에 대해 평가하였다. 지역주민의 삶의 질 향상은 현지의 통계자료 분석, 관계자 면담 등을 통해 취수시간 감소 및 깨끗한 물 공급 달성과 수인성 질병 감소를 조사하였으며, 경제 활성화 기여는 관련 문헌조사와 주민을 대상으로 한 설문조사를 통하여 그 여부를 파악하였다. 성 인지도 제고는 관계자 면담 및 설문조사를 수행하여 여성가사노동 감소 및 여성의 경제활동 참여 증가정도 및 기여도를 분석하였다. 지속가능성 제고는 관련 정책 개선여부에 대하여 조사 및 분석을 수행하였다. 분석 결과 깨끗한 물 공급이 사업 착수 전보다 원활해 졌으며, 수인성 질병 중 하나인 이질 환자가 감소되어 삶의 질이 향상되었다고 사료된다. 또한 상수도 사업을 통한 기간시설의 용수공급이 원활해지고 용수부족 해소 및 관광산업 등 서비스산업 활성화를 촉진시킴으로서 경제 활성화에 기여했다고 판단할 수 있다. 성인지도 제고에 대한 분석은 원활한 물 공급으로 인하여 여성의 물 관련 가사노동 감소에 기여하였으나 여성의 사회참여 기여에 많은 영향을 미치지는 못한 것으로 사료된다. 마지막으로 상수도시설 확충으로 인하여 용수보급률이 증가하고 이에 따라 관련제도를 개선하여 담당 기관의 재무건전성을 제고시킴으로서 지속가능성을 향상시켰다고 할 수 있다. 스리랑카 Galle 광역시 상수도사업의 이러한 성공적인 결과는 해당 국가의 개발정책과 높은 의지와 인구가 밀집되어있고 인구에 비해 급수보급률이 낮은 지역, 관광서비스 산업 밀집지역이 사업대상지로 선정된 요소가 작용하였다고 할 수 있다. 본 연구 결과를 통해 추후 해외 수자원 사업 진출 시 해당국가의 개발정책의지와 대상지역의 현황, 사업으로 인한 다양한 영향력을 고려한다면 성공적인 사업을 수행할 수 있을 것이다.

• Information Systems Review
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• v.22 no.3
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• pp.119-142
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• 2020

This study aims to examine the role of IT features as heuristic cues in choosing a content on YouTube. According to the heuristic-systematic model, people tend to rely on heuristic cues when they have to choose and process useful information quickly so that they could save time and reduce demands for thinking. Based on this line of reasoning, this study posits that YouTube users rely on certain IT features as heuristic cues in choosing contents before they actually watch them. Based on the prior literature and interviews with YouTube users, we develop a research model in which social endorsement, self-presentation, and interactivity are identified as potential determinants of users' attitude toward contents, which in turn influence their intention to watch them. To empirically test the research model, we conduct a laboratory experiment and a follow-up survey. The results of data analysis show that social endorsement for the content, YouTube creator's self-presentation, and interactivity have significant and positive effects on their attitude toward the content, leading to their intention to watch it. This study suggests that IT features on YouTube could be wisely utilized to increase the chance that users choose a particular content out of many competing contents when they search certain information on YouTube.

• Journal of Global Scholars of Marketing Science
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• v.8
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• pp.139-164
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• 2001

This study suggests several concepts on the brand role, brand loyalty, and stickiness on the web, and investigates the relationship between the stickiness/loyalty of the web brands and general characteristics of the web(interactivity, contents and community). This study also examines whether the web stickiness acts as mediating variable. As the result, the interactivity, contents, and community has positive effects on the web stickiness. This results shows that these are very important factors for valuable navigation activities and continuous and more frequent visits giving closer communication and rich contents to users. And the stickiness plays a role as mediating variable between this relationship, this is that interactivity, contents and community can be shift to the loyalty of the web-brand through this stickiness. This study suggests several effects on theoretical and practical area, and offers important theoretical backgrounds for the study of web stickiness.

• Microbiology and Biotechnology Letters
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• v.33 no.4
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• pp.255-259
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• 2005

IgE-dependent histamine-releasing factor (HRF) is found extracellularly to regulate the degranulation process of histamine in mast cells and basophils and known to play a predominant role in the pathogenesis of chronic allergic disease. HRF has been also identified in the intracellular region of the cell. Previously, we reported that HRF interacts with the 3rd cytoplasmic domain of the alpha subunit of Na,K-ATPase. To understand the molecular mechanism of the regulation of Na, K-ATPase activity by HRF, we investigated the interaction between HRF and TPI since TPI was obtained as HRF-interacting protein in HeLa cDNA library, using yeast two hybrid screening. Domain mapping study of the interaction between HRF and TPI revealed that the C-terminal region of the residue 156-249 of TPI is involved in the interaction with HRF. The interaction between HRF and TPI was confirmed by immunoprecipitation from HeLa cell extracts. Our results suggest that TPI is a HRF-binding protein and the interaction between HRF and TPI nay thus affect Na, K-ATPase activity.

• Journal of Digital Contents Society
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• v.17 no.1
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• pp.33-41
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• 2016

This study aims to suggest practical ways to interact effectively with consumers based on current situation of 'media creative' and media use patterns. Cases of digital signage are reviewed in the perspective of cross media, and the strategic meanings of cross media are explored according to interactivity. Results are collected through 'Naver' search engine service, and can be possibly assorted into five media combined types: SNS-combined, QR codes or Augmented Reality(AR)-combined, Brand App(application)-combined, Online to Offline-combined, and Behavioral factors-combined ones. Some strategic suggestions on media creative are given for effective interaction with consumers.

• Microbiology and Biotechnology Letters
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• v.26 no.2
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• pp.102-109
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• 1998

To investigate the increased acid tolerance of a acid-resistant mutant Leuconostoc mesenteroides M-100 improved as a kimchi starter, proton permeability, ATPase acitivity, glycolysis activity, $Mg^{2+}$ releasement, and membrane fatty acid composition were studied and comprised with its wild type Leuconostoc mesenteroides Mw. In the proton permeability experiment, the mininum values of the average half time ($t_{1/2}$) of pH equilibration through the cell membrane of the Mw and the M-100 were about 8.6 min and 9.2 min in 150 mM KCI solution, respectivily. In the 3% NaCl solution, the $t_{1/2}$ values of the Mw and the M-100 were 6min and 8.6 min, respectivily. The values and pHs of maximal specific activities of ATPase originated from the Mw and the M-100 were 0.6U at pH 5.5 and 0.8U at pH 5.5, respectivily. The result of pH dependence of glycolysis showed that the M-100 had higher activities than that of Mw except at pH 5.0. The releases of magnesium from the Mw and the M-100 were observed about 36.5% and 13% at pH 4.0 after 2 hours, respectivily. The results of comparison of membrane fatty acid composition of the Mw with the M-100 showed that $C_{12}$, $C_{14}$, $C_{18:1}$, and $C_{19:0cyclo}$ were major different fatty acids between two strains and the content of $C_{18:1}$, and $C_{19:0cyclo}$ were 23.4%, 10.2% in the Mw and 15.1%, 12.2% in the M-100. These results indicated that acid tolerance of the M-100 was significantly improved in comparison with its wild type Mw.