• Journal of Plant Biotechnology
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• 제7권2호
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• pp.105-112
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• 2005

Buffer soluble protein and five isozymes were analyzed to assess the inter specific relationship among 25 species of the genus Mammillaria Haw. A total of 102 types of proteins were resolved, out of which eighty-six types were found to be polymorphic and only two were unique. A total of 248 bands (isoforms) were detected for 5 isozymes, among them only 4 were found to be monomorphic and 35 were exclusive. Mantel 'Z' statistics revealed wide variations in the correlation among different enzymes. The correlation value 'r' was the highest in case of esterase with pooled data of all the five enzymes. The dendrogram constructed on the basis of pooled data (protein and allozyme) divided the species into two major clusters containing 14 and 11 members respectively. The species M. matudae and M. bella were found to be the most closely related while M. decipience and M. camptroticha were distantly apart. The present study gave an indication of usefulness of the isozyme and protein markers for genetic discrimination between different species of Mammillaria.

• 경영과정보연구
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• 제38권2호
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• pp.47-66
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• 2019

본 연구는 잡 크래프팅이 조직유효성에 영향을 미치는 메커니즘에서 주도적 행동의 매개역할을 고찰하는데 연구의 목적이 있다. 본 연구를 통해서 다음과 같은 이론적 및 실천적 측면에 기여하고자 하였다. 첫째, 잡 크래프팅, 주도적 행동, 조직유효성 간의 새로운 발현 기제를 증명하여 이를 통해 이론적 논의를 확장하고자 하였다. 둘째, 실증된 잡 크래프팅, 주도적 행동, 조직유효성 간 발현 기제를 토대로 국내 조직 구성원에게 적용될 수 있는 실천적 시사점을 제공하여 조직 구성원의 직무만족을 더 높이고 이직의도를 줄이는 일터 환경을 조성하는데 기여하고자 하였다. 본 연구에서 독립변수인 잡 크래프팅 행동을 구조적 직무자원 증가, 사회적 직무자원 증가, 도전적 직무요구 증가, 방해적 직무요구 감소의 네 가지 유형으로 분류하였으며 실증분석 결과는 다음과 같다. 첫째, 잡 크래프팅의 하위요소인 구조적 직무자원 증가, 사회적 직무자원 증가 및 도전적 직무요구 증가는 직무만족에 정(+)의 영향을 미치는 것으로 나타났다. 둘째, 구조적 직무자원 증가, 사회적 직무자원 증가 및 도전적 직무요구 증가는 이직의도에 부(-)의 영향을 미치는 것으로 나타났다. 셋째, 잡 크래프팅은 주도적 행동에 정(+)의 영향을 미치는 것으로 나타났다. 넷째, 주도적 행동은 잡 크래프팅의 하위요소인 구조적 직무자원 증가, 사회적 직무자원 증가 및 도전적 직무요구 증가와 직무만족 간의 관계에서 매개역할을 하는 것으로 나타났다. 다섯째, 주도적 행동은 구조적 직무자원 증가 및 사회적 직무자원 증가와 이직의도 간의 관계에서 매개역할을 하는 것으로 나타났다. 본 연구는 잡 크래프팅이 조직유효성에 미치는 영향에 대한 이해를 제공하고 있으며 향후 잡 크래프팅에 관한 연구에 도움을 줄 수 있을 것으로 예상된다.

• 펄프종이기술
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• 제43권3호
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• pp.128-136
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• 2011

In order to investigate the relationship between the prices of wood chips and pulps, regression analysis and cointegration test were conducted. Test results indicated that pulp producers adjusted pulp price in response to the change in wood-chip price and there were a long-run relationship between these prices. This implied that by raising the selling price of pulp, pulp producers avoid profit loss incurred by the increase in the wood-chip price. The existence of cointegration between wood chips and pulp prices implied that pulp producers were competing when they set the selling price of pulp.

• 가족자원경영과 정책
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• 제1권1호
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• pp.79-88
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• 1997

The purpose of this study is to identify the situation of leisure preferences, the effect of related variables on the leisure preferences, and the relationship between leisure preferences and participations of urban married women. The survey of this research was conducted by means of interviews with 606 married women in Seoul. The instruments of the survey were questionnaires including a leisure preferences scale. Data were analysed by means of the statistics of frequency, mean, standard deviation, ANOVA, and Sheffe’s multiple range test, using the SPSS program. The results were as follows: The most preferred leisure type by urban married women is family oriented activities, especially conversations with family and playing with children. The level of leisure preferences differs according to related variables. The most distinctive variable on leisure preferences is the sex role of women. The relationship between leisure preferences and participations differs according to leisure activities and types. Especially in the area of religion/ social activities and self-developing activities, preferences on leisure activities has relatively strong relationship with participations on leisure activities.

• 가족자원경영과 정책
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• 제13권1호
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• pp.41-59
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• 2009

The purpose of this ethnography is to describe and analyze the wild-goose mother's everyday life, her family relationships, and her social networking. Thirteen mothers from New York, California, and Texas, U.S.A., were interviewed with an unstructured questionnaire. Their residency and everyday schedules are arranged around the children's educational conditions. They have experienced difficult relationships with Korean American immigrants, Korean students, other wild-goose mothers, and Americans. They have failed to develop their social capital effectively due to the language barrier and a cultural capital deficiency. As a kind of family strategy, this separation sometimes strengthens the spousal relationship, preventing divorce, but usually weakens the emotional ties and quality of communication between husband and wife. The acculturation gap between the mother and her children may cause the mother to become alienated and exacerbate the generational conflict.

• 동아시아경상학회지
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• 제9권1호
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• pp.17-26
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• 2021

Purpose-This study examines how financial slack resources and subcontracting of small and medium-sized enterprises (SMEs) affect their internationalization. To identify slack resources, subcontracting, and internationalization of SMEs, 1,062 SME samples in the electronics industry are used in the logistic regression analysis to analyze their relationship with SMEs' export. Research design, data, and methodology-This study conducted the empirical analysis on 1,062 SMEs in the electronics industry using the sample survey method. The samples were based on data selected and distributed by the Ministry SMEs and Startups. The data analysis methods were descriptive, correlation analysis, and logistics regression analysis. Result-The analysis shows that only available resources are negatively related to SMEs' internationalization. It can be interpreted as a high tendency for SMEs to avoid relatively risky choices such as entering overseas markets if they have enough financial resources. Moreover, subcontracting has a negative relationship with internationalization. Conclusion-This study broadened the scope of SME research by analyzing subcontracting and slack resources together and provides practical implications for policymakers and managers.

• 한국산학기술학회논문지
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• 제15권7호
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• pp.4191-4197
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• 2014

공동가치창출 현상은 B2B 및 B2C 시장 모두에서 중요한 비즈니스 전략으로 인식되고 있다. 본 연구에서는 다양한 주체들 및 복잡한 네트워크로 구성된 첨단 기술 기반의 B2B 시장에서 공동가치창출을 위한 핵심 자원 및 역량을 도출하였다. 대만의 파운드리 반도체 선두업체인 TSMC가 사례 연구로 선정되어 공급자, 고객, 파트너들간의 공동가치창출 현상에 대해 연구하였다. 관찰 연구, 내용 분석 및 TSMC 직원들과의 비구조화된 인터뷰를 통해 수집한 질적 데이터를 정성적 데이터 분석(Qualitative data analysis) 툴을 사용하여 분석하였다. 귀납적 추리 (Inductive reasoning)에 기반한 사례 연구 및 사례 연구를 바탕으로 한 이론수립을 연구방법론으로 적용하여 4가지의 핵심 자원 (재무적 자원, 지식 자원, 효율성 자원, 지적 자원)과 6가지의 핵심 역량 (관계 역량, 협력 역량, 전략적 역량, 혁신 역량, 관리 역량, 서비스 역량)을 도출하였다. 도출된 자원과 역량을 기반으로 관계 네트워크 하에서의 공동가치창출을 연구하기 위한 연구 체계를 수립하였다.

• 국제학술발표논문집
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• The 2th International Conference on Construction Engineering and Project Management
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• pp.530-539
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• 2007

Many construction projects such as highways, pipelines, tunnels, and high-rise buildings typically contain repetitive activities. Research has shown that the Critical Path Method (CPM) is not efficient in scheduling linear construction projects that involve repetitive tasks. Linear Scheduling Method (LSM) is one of the techniques that have been developed since 1960s to handle projects with repetitive characteristics. Although LSM has been regarded as a technique that provides significant advantages over CPM in linear construction projects, it has been mainly viewed as a graphical complement to the CPM. Studies of scheduling linear construction projects with resource consideration are rare, especially with multiple resource constraints. The objective of this proposed research is to explore a resource assignment mechanism, which assigns multiple critical resources to all activities to minimize the project duration while satisfying the activities precedence relationship and resource limitations. Resources assigned to an activity are allowed to vary within a range at different stations, which is a combinatorial optimization problem in nature. A heuristic multiple resource allocation algorithm is explored to obtain a feasible initial solution. The Simulated Annealing search algorithm is then utilized to improve the initial solution for obtaining near-optimum solutions. A housing example is studied to demonstrate the resource assignment mechanism.

• 가족자원경영과 정책
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• 제12권3호
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• pp.1-21
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• 2008

Research has emphasized that relationship marketing programs enhance customer satisfaction and reduce switching intentions by building switching barriers. However, the psychological reactance theory demonstrates that building switching barriers can make customers fsel that the alternative not chosen is more attractive, because their freedom of choice has been deprived. It can be hypothesized that a relationship marketing program, which is intended to offer various benefits to customers, may not result in positive customer attitude and behavior. This paper examines the effects of relationship marketing programs on customers' perceptions of switching cost and loss of freedom. The effects of those perceptions on customer satisfaction and switching intentions were identified. In addition, the moderating role of personal reactance was examined. The results of this study suggest that (1) perceived switching cost has significant influence on boosting perceived loss of freedom; (2) perceived loss of freedom has no significant effects on customer satisfaction; (3) perceived loss of freedom enhances customers' switching intentions. Furthermore, psychological reactance has a significant influence on customers' switching intentions. This study concludes that the role of relationship marketing programs should be reconsidered, especially in terms of customers' switching intentions. Customer satisfaction is not the key factor of predicting customers' future behavior.

• 자원ㆍ환경경제연구
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• 제27권3호
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• pp.521-544
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• 2018

This paper investigates the impact of ethanol mandate on the price relationship between corn and beef using the monthly time-series data from January 2003 through December 2013. In addition, we examine the non-linearity in ethanol, corn, and beef markets. Based on the threshold cointegration test, we find the symmetric relationship in pairs with ethanol production-corn price and ethanol production-beef price whereas there is the asymmetric relationship between prices of corn and beef. Employing the threshold vector error correction and vector error correction models, we also find that the corn price in the U.S is caused by both ethanol production and beef price in a long-run when the beef price is relatively high. On the other hand, the corn price does not cause both ethanol production and beef price in the long run. Findings from this study imply that demanders for corn such as ethanol and beef producers have price leadership on corn producers.