• Journal of Korea Trade
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• 제27권3호
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• pp.147-160
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• 2023

Purpose - This paper aims to investigate the competitiveness and complementarity of the agricultural products trade between Korea and Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP) countries. The study evaluates the opportunities and challenges that Korea's agricultural sector faces after joining the CPTPP, and suggests strategies to deepen cooperation and expand Korea's agricultural products trade. Design/methodology - To achieve these objectives, we analyze the trade competition and cooperation relationship between Korea and CPTPP countries in the agricultural products trade. This study uses data from Chapters HS1-24 in UN Comtrade from 2012 to 2022, and applies the indices of revealed comparative advantage, export similarity, and trade complementarity to examine the trade dynamics. Furthermore, we use an Autoregressive Integrated Moving Average (ARIMA) model to predict the agricultural products trade complementarity index between Korea and CPTPP countries from 2022 to 2031. Findings - The findings of our analysis reveal that Korea's agricultural products trade competitiveness is weak compared to that of CPTPP countries, and Korea's agricultural products are at a competitive disadvantage. On the whole, the similarity index of agricultural products trade exports between Korea and CPTPP countries is low, the structure of agricultural products export is quite different, and trade competition is relatively moderate. The trade complementarity index between Korea and CPTPP countries is generally high, with strong complementarity and a large space for cooperation and development. The ARIMA model shows that in the next ten years, although the agricultural products trade complementarity index fluctuates, but is generally high, there will still be a complementarity advantage in the future. Originality/value - This study is the first attempt to investigate the competitiveness and complementarity of the agricultural products trade between Korea and CPTPP countries. We also introduce an ARIMA model to forecast and analyze the future agricultural products trade complementarity index. Our study provides new perspectives and solutions for the future development of Korea's agricultural products trade after joining the CPTPP.

• Asia pacific journal of information systems
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• 제25권2호
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• pp.370-402
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• 2015

The dynamic capabilities of social media are changing the nature of contemporary news by allowing users to communicate and create content, deliver and share newsworthy information, and consume news. News organizations engage with social media because this computer-mediated tool provides an alternative platform for delivering news and connecting with global audiences. This role of social media is conceptualized as its complementarity. However, when mass user-generated-content is constantly shared with other users, more users are attracted to indulge in news-seeking activities on social media. This phenomenon potentially fulfills users' news requirements on social media, which is contrary to what news companies envisioned when they began engaging with social media. This dichotomous role of social media, providing complementarity and showing the potential for becoming a superior news medium, is conceptualized as its competing-complementarity. This paper offers preliminary evidence of competing-complementarity by analyzing the news consumption of individuals. Such consumption is explained through the theoretical perspective of punctuated equilibrium by conceptualizing news consumption as a deep structure radically impacted by a disruptive technology. Although social media benefit news organizations, its competing potential poses serious challenges to their monopolistic controls on news production, distribution, readership, and revenue generation.

• 지식경영연구
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• 제12권4호
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• pp.55-75
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• 2011

Scant attention has been given to analyzing how knowledge sourcing strategies affect firm performance in SMEs and what are the differences between SMEs and large firms in the patterns of knowledge sourcing strategies adoption. This study attempts to advance the current literature by examining the impact of knowledge sourcing strategies on SMEs performance. The empirical segment of our work is based on data on knowledge sourcing strategies of SMEs and organizational performance from a sample of 166 Korean firms. Our results indicate knowledge sourcing adoption patterns of SMEs are different from large firms. In addition, the results confirm that substitutability between internal- and external-oriented, person- and external-oriented sourcing strategies. This study sheds new light on knowledge management (KM) research by identifying the relationship between knowledge sourcing strategies and SMEs performance.

• The Plant Pathology Journal
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• 제17권3호
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• pp.115-122
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• 2001

Potato virus X (PVX) is a flexuous rod-shaped virus containing a single plus-strand RNA. Viral RNA synthesis is precisely regulated by regulatory viral sequences and by viral and/or host proteins. RNA sequence element as well as stable RNA stem-loop structure in the 5' end of the genome affect accumulation of genomic RNA and subgenomic RNA (sgRNA). The putative sgRNA promoter regions upstream of the PVX triple gene block (TB) and coat protein (CP) gene were critical for both TB and CP sgRNA accumulation. Mutations that disrupted complementarity between a region at the 5' end of the genomic RNA and the sequences located upstream of each sgRNA initiation site is important for PVX RNA accumulation. Compensatory mutations that restore complementarity restored sgRNA accumulation levels. However, the extent of reductions in RNA levels did not directly correlate with the degree of complementarity, suggesting that the sequences of these elements are also important. Gel-retardation assays showed that the 5' end of the positive-strand RNA formed an RNA-protein complex with cellular proteins, suggesting possible involvement of cellular proteins for PVX replication. Future studies on cellular protein binding to the PVX RNA and their role in virus replication will bring a fresh understanding of PVX RNA replication.

• 디지털융복합연구
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• 제14권11호
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• pp.135-142
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• 2016

최근 중동의 주요 국가들의 경제 성장과 맞물려 우리나라와의 다양한 분야에서의 경제협력 및 교류의 가능성에도 불구하고 그동안 이 지역과 경제협력과 관련된 연구와 자료가 부족했으며 특히, 이 지역과의 교역구조 및 동향과 관련된 논문은 거의 찾아 볼 수 없었다. 이에 본 연구는 우리나라와 주요 GCC(Gulf Cooperation Council) 국가(사우디아라비아, 아랍에미레이트, 카타르) 간에 최근 5년 동안 무역결합도 지수 분석과, 무역보완도, 국별편향도 지수 분석을 통해 향후 GCC 국가로의 한국의 수출 및 교류의 확대의 가능성을 살펴보고, 더 나아가 FTA 체결에 대한 시사점을 검토해 보는 것을 목적으로 하였다. 분석결과 중동의 주요 3개 국가 모두 산업구조상 한국과 상호보완 관계가 이루어져 있어 국가 간 자본이동을 점증적으로 증가시키거나 무역장벽을 낮추도록 노력한다면 향후 무역보완도와 국별편향도를 더욱 증가 시킬 수 있을 것으로 나타났다. 특히 한국과 사우디 간의 무역 및 교역 구조는 3국 중에서 가장 상호 보완관계가 높아 미래 FTA의 체결을 통해 우리나라의 수출증대와 더불어 양국 간 교역을 활성화 할 수 있는 새로운 기회를 창출할 수 있을 것으로 기대된다.

• 경영과정보연구
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• 제37권4호
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• pp.141-156
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• 2018

PMO(Project Management Office)는 IT 프로젝트의 성공적인 운영을 위한 보편적 접근방법으로 여겨지고 있다. PMO에 관한 선행연구는 PMO의 규범적 역할과 기능을 규명하는 데 집중하는 경향이 있다. 반면 실제 현장에서는 PMO가 발주기업과 전문PMO로 구성되는 조직간 협력체로서 운영되고 있기 때문에 적절한 협력체 (PMO 수행체계)의 수립은 프로젝트 성과에 의미있는 영향을 미칠 것으로 보인다. 본 연구에서는 발주기업과 외부 전문PMO의 역량이 PMO 수행체계의 수립을 통해 프로젝트 성과에 어떠한 영향을 미치는지 살펴보았다. 더불어, 발주자와 전문PMO 간의 지식 상호보완 정도에 따라 각각의 역량이 수행체계에 미치는 영향에 변화가 있는지도 살펴보았다. 연구결과, 발주기업과 외부 전문PMO의 역량이 PMO수행체계의 수립에 긍정적인 영향을 미치며 추진조직과 역할 및 책임에 대한 명확한 정의와 표준화된 프로세스의 확립 등이 IT 프로젝트의 성과에 중요한 요인임이 밝혀졌다. 또한, 발주기업과 전문PMO가 공통지식 기반을 갖고 지식 상호보완성을 확보했을 때 PMO가 더욱 효과적으로 기능을 발휘하는 것으로 밝혀졌다. 종합하면, IT 프로젝트의 성공을 위해서는 PMO 수행체계수립에서 거버넌스 관점의 접근이 중요하며 발주기업과 외부 전문 PMO 간의 지식 상호보완성의 확보가 도움이 되는 것으로 볼 수 있다.

• East Asian Economic Review
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• 제23권1호
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• pp.55-88
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• 2019

Our paper contributes to existing literature by empirically investigate the trade structure and trade performance between Korea and ASEAN. Overall, trade activities between Korea and almost major ASEAN economies have significantly focused on capital goods, medium and high technology goods, while the remaining ASEAN countries' exports over Korea have been mainly primary and low technology goods. There has been a higher complementarity in between Korea's exports and ASEAN's imports compared with between ASEAN's exports and Korea's imports. Estimation results show that ASEAN's GDP and income have larger impacts than those of Korea on aggregate trade flows as well as sectoral level between two sides. Additionally, geographical conditions are critical factors impeding Korea-ASEAN trade. Meanwhile, other factors in the estimation model have mixed impacts on components of Korea-ASEAN trade structure. Finally, there is a significant room for Korea's trade expansion with ASEAN, particularly new and less developed members in future.

• 통합자연과학논문집
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• 제6권2호
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• pp.100-103
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• 2013

Using computational approaches we can dock small molecules into the structures of Macromolecular targets and then score their potential complementarity to binding sites is widely used in hit identification and lead optimization techniques. This review seeks to provide the application of docking in structure-based drug design (binding mode prediction, Lead Identification and Lead optimization), and also discussed how to manage errors in docking methodology in order to overcome certain limitations of docking and scoring algorithm.

• 한국사회복지학
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• 제57권4호
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• pp.91-118
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• 2005

본 연구는 OECD 14개 회원국을 대상으로 복지체제와 생산체제의 조정전략과 이들 사이의 제도적 상보성이 소득 불평등에 미치는 영향을 분석하는 것이 목적이다. 분석에 포함된 기간은 1980년에서 1997년이며, 분석방법은 벡과 카츠(Beck and Katz, 1995)가 제안한 PCSE(Panel Corrected Standard Errors) 방법이 사용되었다. 제도적 상보성은 분배조정과 생산조정 변수의 상호작용 항으로 분석된다. 본 연구의 결과 제도적 상보성 수준이 높을 경우가 그렇지 않을 경우보다 소득불평등 수준을 낮추는 것으로 분석되었다. 또한, 조정전략의 관점에서 볼 때, 분배조정 영역과 생산조정 영역이 모두 전략적 조정을 지향하도록 제도가 구성될 때 소득 불평등 정도를 더 낮추는 것으로 분석되었다. 즉, 복지체제 영역에서 전략적 조정을 지향하는 정책 변화는 생산체제 영역에서 전략적 조정을 증가시키는 정책 변화가 같이 진행될 때 소득 불평등 수준을 더 낮출 수 있다는 것을 확인하였다.

• Bulletin of the Korean Chemical Society
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• 제14권4호
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• pp.491-496
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• 1993

A class A ${\beta}$-lactamase from Staphylococcus aureus PC1 complexed with 3R,5R-clavulanate is studied. The starting geometry for the computation is the crystal structure of the ${\beta}$-lactamase. Docking of the clavulanate to the enzyme is done exploiting the requirements of electrostatic and shape complementarity between the enzyme and clavulanate. This structure is then hydrated by water molecules and refined by energy minimization and short molecular dynamics simulation. In the energy refined structure of this complex, the carboxyl group of the clavulanate is hydrogen bonded to Lys-234, and the the carbonyl carbon atom of the clavulanate is adjacent to the $O_{\gamma}$ of Ser-70. It is found that a crystallographic water molecule initially located at the oxyanion hole, which is formed by the two -NH group of Ser-70 and Gln-237, is replaced by the carbonyl oxygen atom of the 3R,5R-clavulanate after docking and energy reginement. The crystallographic water molecules are proved to be important in ligand binding. Glu-166 residue is found to be repulsive to the binding of clavulanate, which is in agreement with experimental observation. Arg-244 residue is found to be important to the binding of clavulanate as well as to interaction with C2 side chain of the clavulanate. The electron density redistribution of the clavulanate on binding to the ${\beta}$-lactamase in studied by an ab initio quantum-mechanical calculation. A significant redistribution of electron density of the clavulanate is induced by the enzyme, toward the enzyme, toward the transition state of the enzymatic reaction.