• 제목/요약/키워드: Interactions and Relations

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Eco-toxicogenomics Research with Fish

  • Park, Kyeong-Seo;Kim, Han-Na;Gu, Man-Bock
    • Molecular & Cellular Toxicology
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    • 제1권1호
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    • pp.17-25
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    • 2005
  • There are some critical drawbacks in the use of biomarkers for a global assessment of the toxicological impacts many chemicals and environmental pollutants have, primarily due to an individual biomarker's specificity for an explicit chemical or toxicant. In other words, the biomarker-based assessment methodology used to analyze toxicological effects lacks a high-throughput capability. Therefore, eco-toxicogenomics, or the study of toxicogenomics with organisms present within a given environmental locale, has recently been introduced with the advent of the so-called "-omics" era, which began with the creation of microarray technologies. Fish are comparable with humans in their toxicological responses and thus data from toxicogenomic studies performed with fish could be applied, with appropriate tools and implementation protocols, to the evaluation of environments where human or animal health is of concern. At present, there have been very active research streams for developing expression sequence tag (EST) databases (DBs) for zebra fish and rainbow trout. Even though few reports involve toxicogenomic studies with fish, a few groups have successfully fabricated and used cDNA microarrays or oligo DNA chips when studying the toxicological impacts of hypoxia or some toxicants with fish. Furthermore, it is strongly believed that this technology can also be implemented with non-model fish. With the standardization of DNA microarray technologies and ample progress in bioinformatics and proteomic technologies, data obtained from DNA microarray technologies offer not only multiple biomarker assays or an analysis of gene expression profiles, but also a means of elucidating gene networking, gene-gene relations, chemical-gene interactions, and chemical-chemical relationships. Accordingly, the ultimate target of eco-toxicogenomics should be to predict and map the pathways of stress propagation within an organism and to analyze stress networking.

에이전트기반 시뮬레이션을 활용한 건설프로젝트 조직 내 협업과정의 이해 (Understanding Collaborative Working Processes within Construction Project Teams Using Agent-Based Modeling and Simulation)

  • 손정욱;신승우;이준성
    • 한국건설관리학회논문집
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    • 제15권1호
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    • pp.70-77
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    • 2014
  • 건설프로젝트의 성공적인 수행을 위해 의사소통, 협력, 정보공유 등을 포함한 구성원들 간의 협업은 반드시 필요하다. 그러나 프로젝트 조직 내의 협업과정이 성과에 미치는 영향에 대한 분석적인 시도는 부족하였다. 본 연구는 게임이론 기반의 에이전트기반 시뮬레이션을 활용하여 프로젝트 조직 내 협업과정을 보다 명시적으로 이해하는 방법을 제시하였다. 시뮬레이션의 결과로 구성원수준에서의 관계형성과 조직수준에서의 네트워크 발전양상을 관찰할 수 있었다. 본 연구는 프로젝트조직 내의 협업과정 분석방법 개발을 위한 기초연구이며, 향후 연구를 통해 조직 내 업무수행 프로세스, 생산작업 프로세스, 관리 프로세스 등의 부분과 결합하여 프로젝트 성과를 예측하는 방법으로 발전될 수 있을 것이다.

불균형적 상호의존성과 갈등간 비선형적 관계에 대한 연구 (A Study on the Non-linear Relationship between Asymmetric Interdependence and Conflict)

  • 김종근;김재욱
    • 한국유통학회지:유통연구
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    • 제10권2호
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    • pp.49-72
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    • 2005
  • 상호의존성은 유통경로상에 존재하는 기본적 특성으로서 오랫동안 유통분야에서 관련연구들이 활발하게 진행되어 왔다. 특히 갈등은 유통경로상의 거래관계를 특징짓는 주요 특성으로서 상호의존성과 갈등 간 관계를 규명하는 것은 의미하는 바가 크다. 그러나 사회학 분야에서는 상호의존성과 갈등 간 관계를 설명하는 상반된 이론이 존재하며, 마케팅 분야에서도 상호의존성과 갈등 간 관계에 대해서 상반된 연구결과가 제시되었다. 이에 본 연구에서는 상호의존성과 갈등 간 관계에 대해 대립된 설명을 하고 있는 쌍무적 억제이론과 갈등나선형이론 등의 사회학 이론을 활용하여 붙균형적 상호의존성과 갈등간 비선형적 관계를 제안하고, 이를 위해 소방관련 전문공사업체들과 공급업체들로부터 설문데이타를 수집하여 불균형적 상호의존성과 갈등간 역U형태의 관계가 있음을 증명하고자 한다. 분석결과 구매업체집단과 공급업체집단 모두에서 상호의존성의 총합이 높을 때 불균형적 상호의전성과 갈등간 비선형적 관계가 통제적으로 유의미하게 도출되었다. 마지막으로 몇 가지 학문적 시사점들과 한계점 및 향후 연구 과제를 제시하였다.

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무주지역 소유역내 지표수와 지하수의 안정동위원소 조성의 시공간적 변화 (Temporal and Spatial Variation of Stable Isotopic Compositions of Surface Water and Ground Water in a Small Catchment, Muju, Korea)

  • 한원식;우남칠;이광식;이기철
    • 자원환경지질
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    • 제36권5호
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    • pp.329-338
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    • 2003
  • 이 연구는 무주군 적상산 부근에 위치하는 소유역(100$Km^2$)에서 지표수와 천부 지하수의 안정동위원소 조성의 시공간적 변화를 조사하기 위해서 실시되었다. 시료채취는 2001년 8월(여름)과 10월(가을), 2002년 4월(봄), 3회에 걸쳐 실시되었다. 지표수의 동위원소 조성은 계절에 따라 뚜렷이 구분되어 도시되지만 천부 지하수에서는 이러한 변화가 줄어든 것이 관찰되었다. 하지만 지표수와 지하수의 안정동위원소 조성의 변화 폭은 계절별로 서로 유사하게 나타나고 있다. 이것은 이 지역에서 강수, 지표수 및 지하수 사이의 상호작용이 매우 활발하며 지속적으로 일어나고 있음을 의미한다. 무주지역 지표수의 안정동위원소 조성은 남쪽에 위치하는 섬진강의 조성보다는 가벼운 “위도효과”를 나타내고 있다. 또한 하천수에는 동위원소 조성의 계절변화와 아울러 강수의 “고도효과”와 “우량효과”가 잘 반영되어 있음이 관찰되었다.

모-자녀간 상호작용 시 어머니의 양육행동과 유아의 순응/불순응 행동 간의 상호적 관계 : 단기 종단 연구 (Reciprocal Relations between Maternal Parenting Behavior and Preschoolers' Compliance/Noncompliance during Mother-child Interactions : A Short-term Longitudinal Study)

  • 신나나;박보경;김소영;도현심
    • 아동학회지
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    • 제36권5호
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    • pp.75-94
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    • 2015
  • This study examined short-term longitudinal reciprocal relationships between maternal parenting behavior and preschoolers' compliance/noncompliance, as well as stability in both maternal parenting behavior and preschoolers' compliance/noncompliance over time. The sample which was used for this study was taken from a two-wave (one year apart) longitudinal study of preschool-aged children and their mothers (N = 53 dyads). At both times, mothers and their children were invited to a laboratory and engaged in 25 minutes of play involving three episodes of mother-child interaction. Maternal parenting behavior and preschoolers' compliance/noncompliance during play were coded using the Dyadic Parent-Child Interaction Coding System-III (DPICS-III). Maternal codes included positive, neutral, and negative parenting behaviors and child codes were comprised of compliance and noncompliance. The results revealed that during the play session, maternal neutral and negative parenting behavior and preschoolers' compliance were stable over time. In addition, T1 maternal negative parenting behavior was significantly related to T2 child compliance/noncompliance. However, T1 child compliance/noncompliance were not significantly associated with T2 maternal parenting behavior. These findings suggest that during the preschool period, there are unidirectional effects from mothers to children.

A Comparative Study of Social Network Tools for Analysing Chinese Elites

  • Lee, HeeJeong Jasmine;Kim, In
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제15권10호
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    • pp.3571-3587
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    • 2021
  • For accurately analysing and forecasting the social networks of China's political, economic and social power elites, it is necessary to develop a database that collates their information. The development of such a database involves three stages: data definition, data collection and data quality maintenance. The present study recommends distinctive solutions in overcoming the challenges that occur in existing comparable databases. We used organizational and event factors to identify the Chinese power elites to be included in the database, and used their memberships, social relations and interactions in combination with flows data collection methodologies to determine the associations between them. The system can be used to determine the optimal relationship path (i.e., the shortest path) to reach a target elite and to identify of the most important power elite in a social network (e.g., degree, closeness and eigenvector centrality) or a community (e.g., a clique or a cluster). We have used three social network analysis tools (i.e., R, UCINET and NetMiner) in order to find the important nodes in the network. We compared the results of centrality rankings of each tool. We found that all three tools are providing slightly different results of centrality. This is because different tools use different algorithms and even within the same tool there are various libraries which provide the same functionality (i.e., ggraph, igraph and sna in R that provide the different function to calculate centrality). As there are chances that the results may not be the same (i.e. centrality rankings indicating the most important nodes can be varied), we recommend a comparison test using different tools to get accurate results.

노베르그-슐츠(C. Norberg-Schulz)의 '장소성' 이론에 대한 비판적 고찰 - 하이데거(Martin Heidegger)의 "개방성(Openness)"과 "틈새내기(Rift-design)" 사유를 근거로 - (A Critical Review on C. Norberg Schulz's Theory of the 'Placeness' - Centering around Heidegger's Thought of "Openness" -)

  • 이승헌;이동언
    • 건축역사연구
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    • 제12권3호
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    • pp.149-162
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    • 2003
  • Schulz accepted the existentialist view based on Heidegger's thought and at the same time the objectivist view making fixed this living world, evoking controversies for discussion. He could not see various presentations of the meaning of place because he perceived elements of this world individually. Thus Schulz's mixed system of understanding is sternly different from Heidegger's thought. First, Heidegger suggests that place as existential space represents the occasion revelation of incidents in Dasein. While Schulz recognizes that place is a systematic space predetermined for Dasein. Second, Heidegger interprets the placeness as creative openness in which elements comprising this world face and interact with each other into one. In contrast, Schulz defines each of the elements through signification and regards it as invariable and static. Third, Heidegger perceives that the placeness is expressed with sustainable, complex images through "rift-design" which seeks dynamic interactions between the ground and the world. While Schulz attempts to take "Genius Loci" or "habituated scene" through "gathering" as a concept he regards static and then visualize such structural two factors, producing certain internal images of place. However, limits of Schulz's theory prevent us from exerting complete imagination and discovering the inner creative world of the object. Thus the ultimate goal of paying attention to the placeness, that is, the recovery of individual identity, fails due to the prevalence and abstraction of objectified thinking. In contrast, Heidegger's thought about "openness" is a useful means of realizing the placeness. Openness may be referred to a dynamic coordination in which the earth and the world sustain each other under incessant mutual tensions, but not sticking o each other. "Rift-design" is an openness strategy to cause tense relations by preventing structuralization intentively. This is a creative design that allows seeing original seams of the object.

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성인 취업자의 성별에 따른 생활만족도와 자아존중감의 관계: 인구사회학적인 변인 및 자원봉사활동 여부 상호작용효과 (Relations between Life Satisfaction and Self-Esteem according to Gender of Employed Adults: Correlation with Demographic Variables and Volunteer Activity)

  • 엄주란;문재우
    • 한국콘텐츠학회논문지
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    • 제19권1호
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    • pp.359-372
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    • 2019
  • 본 연구 목적은 성인 취업자의 성별에 따른 생활만족도와 자아존중감에 관해 살펴보고, 인구사회학적인 변인과 자원봉사활동 여부 상호작용 효과까지 영향을 검증하는데 있다. 자료는 한국복지패널 12차 자료를 사용하였으며, 분석대상은 남성 2,776명 여성 2,175명으로 하였다. 분석방법으로는 SPSS 프로그램을 사용하여 상호작용 효과까지 검증하였다. 연구결과 성인 취업자의 자아존중감은 생활만족도와 관계가 있는 것으로 나타났으며, 상호작용 효과는 성별에 따라 다르게 나타났다. 이를 토대로 성인 취업자의 성별에 따른 생활만족도와 자아존중감 높일 수 있는 차별적 개입 및 정책지원 방안을 제언하였다.

필리핀 국제결혼이주여성의 초국가적 행태에 관한 연구 (Intermarriage Migration and Transnationalism focused on Filipina Wives in South Korea)

  • 김동엽
    • 동남아시아연구
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    • 제20권2호
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    • pp.31-72
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    • 2010
  • This study is to explain the nature of transnational activities being involved in by Filipina intermarriage migrants in Korea by examining the institutional backgrounds of market, society and the state. The increasing number of Filipina intermarriage with Korean coincides with the advance of liberal market economy, which governs internal and bilateral interactions between and among the three institutions in both countries. While existing various reasons for engaging in intermarriage, a significant number of Filipina wives in Korea ventured into it with uncertain expectations that they might earn better lives and could support their families. Such hopes usually turn out in vain when they meet the real lives in Korea. It is mainly because their spouses in Korea would rather be those who left behind in the marriage market due to their lack of competitiveness. Filipina wives are also suffering from social isolation caused by language and other barriers such as family relations or rural life they might settle in. Their transnational activities usually tend to be their effort to breakthrough their unexpected condition of difficult lives in Korea. They usually make use of transnational sort of community activities to cultivate chances to engage in bread earning activity. Migrant's transnational activity has a great impact on sociocultural changes in the country of origin and of arrival. Transnational activity provides migrants with economic opportunities, and uplifts self-esteem as well. Intermarriage couples, especially with Southeast Asian wives, and their offsprings show a tendency of downward assimilation to Korean society. Korean state policy toward them should not simply apply undiscriminated assimilation theory, but take into account their possible strength of transnational identity with which they could find a means to integrate themselves successfully into the mainstream Korean society.

다문화 사회에서의 글로리아 안잘두아의 『경계지대들/경계선에서: 새로운 메스티자』의 혼성성의 시학 (The Poetics of Hybridity of Gloria Anzaldúa's The Borderlands/La Frontera: The New Mestiza in Multicultural Society)

  • 정순국
    • 영미문화
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    • 제10권2호
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    • pp.231-266
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    • 2010
  • This paper explores hybridity and hybridized relations that see mixings and crossings as the first moment of multicultural society. References to hybridity often assume that the definition and orientation of the term are located within biology; that is, hybridity constitutes a mixing of two formally discrete objects. In this regard, there seems to be a dialectical preoccupation with purity that goes hand in hand with discussions of hybridity. This dialectical reference to hybridity privileges whole, complete entities as the original instance before mixing, and in this way purity becomes reified. My analysis of hybridity foregrounds mixings that occur at the level of the social, not exclusively at the level of the biological. Hybridity contexts the myth of monoculturalism in the United States and foregrounds multiculturalism as the initial context around which difference has begun to be conceived. In destabilizing the myth of racial origins, this paper attempts to establish a retroactive construction of purity, which is historically, ideologically, and ethnically examined in Gloria Anzaldua's Borderlands/ La Frontera: The New Mestiza. Through this work composed of disparate narratives discourses, Anzaldua employs physical differences to ward off the colonial desire that has defined others as objects which are to be controlled. In this regard, this paper pursues the way that physical differences could be repositioned in terms of 'hybridity' that has been related to the cultural, historical, economical significations of borderlands. The space of borderlands is also a place marked psychologically; it will turn differences mobilized in the borderland into an acute consciousness that makes us recognize 'otherness' within ourselves. In sum, this paper attempts to elaborate the productive and creative interactions among disparate languages, classes, genders, and ideas, which will draw attention to their own interlocking nature.