• Genomics & Informatics
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• 제20권4호
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• pp.43.1-43.18
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• 2022

Atropa belladonna is a valuable medicinal plant and a commercial source of tropane alkaloids, which are frequently utilized in therapeutic practice. In this study, bioinformatic methodologies were used to examine the pattern of coding sequences and the factors that might influence codon usage bias in the chloroplast genome of Atropa belladonna and other nightshade genomes. The chloroplast engineering being a promising field in modern biotechnology, the characterization of chloroplast genome is very important. The results revealed that the chloroplast genomes of Nicotiana tabacum, Solanum lycopersicum, Capsicum frutescens, Datura stramonium, Lyciumbarbarum, Solanum melongena, and Solanum tuberosum exhibited comparable codon usage patterns. In these chloroplast genomes, we observed a weak codon usage bias. According to the correspondence analysis, the genesis of the codon use bias in these chloroplast genes might be explained by natural selection, directed mutational pressure, and other factors. GC12 and GC3S were shown to have no meaningful relationship. Further research revealed that natural selection primarily shaped the codon usage in A. belladonna and other nightshade genomes for translational efficiency. The sequencing properties of these chloroplast genomes were also investigated by investing the occurrences of palindromes and inverted repeats, which would be useful for future research on medicinal plants.

• 대한임상검사과학회지
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• 제48권4호
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• pp.348-354
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• 2016

병원정보시스템에 저장되어 있는 자료들은 적절성 평가 및 질관리를 향상시키는 데 있어 많은 잠재력을 가지고 있으며 이를 기반으로 하는 데이터웨어하우스의 구축은 질 관리의 향상과 임상진료에 많은 도움을 줄 수 있는 것으로 알려져 있다. 본 연구는 감염관리 정보의 체계적이고 효과적인 자료 분석을 위한 일환으로 항생제 사용량 분석이 가능한 데이터마트를 구축하였다. 감염관리의 구성요소 및 평가 척도를 선정 후 XML DTD 방법으로 메타데이터를 설계하였고 모델링을 통해 데이터마트를 구축하여 항생제 사용량 분석을 위한 다차원 분석 도구인 OLAP를 시현하였다. 실험 자료는 1997년 7월 한 달 동안의 천안 지역의 일개 대학병원의 항생제 사용량 자료를 이용하였다. 감염관리 메타데이터의 상위요소는 항생제 내성 정보, 항생제 사용량 정보, 감염 정보, 검사 정보, 환자 정보 및 감염 관련 비용으로서 구성하였다. 이 중 항생제 사용량 정보를 스타 스키마에 적용하기 위한 데이터베이스의 설계를 하여 데이터마트를 구축하였다. 그리고 일 개월 간 사용된 항생제 사용량에 대해 OLAP을 시현하였다. 본 연구는 XML과 OLAP 기술의 구현을 통해 항생제 사용량에 대한 감염관리 데이터마트를 수립하였다. 개념적이고 구조화된 데이터마트의 구축은 감염관리 정보에 대해 신속하고 다양한 분석을 제공할 것으로 사료되었다.

• 한국IT서비스학회지
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• 제16권1호
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• pp.119-138
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• 2017

Mobile easy payment is a term for using mobile devices to facilitate financial transactions. Mobile easy payment is a quickly emerging practice, supported by the dramatic increase of mobile phone or device users around the world. The purpose of this study is to classify user's group of the mobile easy payment service by their lifestyle based on I-VALS type and to investigate differences in usage behavior among the user groups. For empirical study, a questionnaire survey was carried out with users of mobile easy payment services using the Internet from June 7 to 10 in 2016. We conducted factor analysis for I-VALS, usage factors, satisfaction factors. We also performed cluster analysis for group classification, and analysis of variance, cross analysis to compare the different usage behavior among the user groups. In analysis results, first three cluster appeared including "ICT task-oriented group", ICT positive and socialities oriented group", "ICT leader-oriented group". Second, it was found significant differences among the clusters about factor of "easy of use", "securities", "universality", "satisfaction". Third, we showed that there were significant differences in time first used the service. Based on these findings, we provide practical implications. Results of our study can be expected to provide the basis of differentiated marketing strategy of mobile easy payment services.

• 지식경영연구
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• 제10권2호
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• pp.85-103
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• 2009

Web 2.0, characterized as openness, sharing, and participation, has enabled Internet users to easily generate a variety of contents, and to share them through Web 2.0 services. Knowledge search service (KSS) is positioning itself as one of typical Web 2.0 services. Yet, few studies have sharpened our understanding of users' knowledge sharing behavior in the KSS environment. In order to address this knowledge void, this paper attempts to explore antecedents of their usage behavior in the KSS environment. Typically, they utilize stored knowledge and share their knowledge simultaneously. Considering this characteristic, our study regards service usage intention and knowledge sharing intention as final dependent variables. This study advances a research model based on Bhattacherjee's expectation-confirmation model, which is expanded by incorporating trust belief. Because of the openness of KSS, trust belief is believed to play a critical role in forming users' service usage intention and knowledge sharing intention. Furthermore, this study examines the difference of the antecedents' effects in terms of users' gender. We collected data from 275 respondents who have experience in using KSS. PLS (partial least squares) was employed for the analysis of the data. Analysis results confirm the important role of user satisfaction and trust belief in the formation of users' service usage intention and knowledge sharing intention. More importantly, trust belief has a more salient effect on knowledge service usage intention than user satisfaction. This study also shows the moderating role of users' gender. Finally, this paper provides managerial guidance on strategic planning aimed at improving users' service usage intention and knowledge sharing intention in the KSS environment.

• 한국산업보건학회지
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• 제10권2호
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• pp.27-39
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• 2000

Objectives : The purpose of this study is to analyze the factors associated with respirator usage on the basis of reasoned action theory. Methods : The data were collected from August 1 to September 30 1999, and study subjects consisted of 303 workers who were employed in the manufacturing industries. A self-administered questionnaire was used to measure the attitude, subjective norm and related factors. Results : In bivariate analysis, the variables related to protector usage were prevention of occupational disease, protection of toxic material, disturbance during working, troublesome of usage, proper exchange of protector. Multivariate logit analysis was used to estimate factors associated with respirator usage. Significant predictors that are related to respirator usage were attitude toward the behavior, size of industry and proper exchange of protector. Conclusions : The results suggest that it is strongly required to focus on attitude toward the behavior in order to improve workers' usage of respirator.

• 한국조경학회지
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• 제23권3호
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• pp.167-176
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• 1995

The purpose of this study is to suggest objective basic data for park management proposal through the quantitative analysis of users' behaviors and satisfaction for the actual conditions of management in Moaksan provincial park. For this, users' behaviors and socio-ecnomic characteristics have been analyzed. Specifically, it attempts to investigate users' anticipation and degree of satisfaction applied Expectancy Theory by Likert scale. And users' satisfaction for the actual conditions of management had been analyzed by using the multiple regression. Results of this study can be summarized as follows ; From the aspect of utilization reality, the male usage was silighty higher than female usage, and the usage rate reality, the male usage was slighty higher than female usage, and the usage rate among the young and students such as university students also appeared slightly higher than the norm. Due to the fact, subject park had been provincial park, bus usage was predominant, and users' visit park 1 or 2 times a year. Generally, the value of users' post occupancy evaluation were higher than those of anticipated, and Use in night and facilities were lower. A sense of the season, dense of forest, beauty of skyline and a perspective view appeared as main explicatory variables having positive effects on the satisfaction level for the landscape. Amount of plant and shade were positive variables on the satisfaction and users' had dissatisfaction with trial damage. According to the multiple regression analysis, the major variables to the satisfaction for the actual condition of vegetation management were diversity, recovery of artificial injury.

• 디지털융복합연구
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• 제20권5호
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• pp.525-535
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• 2022

본 연구의 목적은 게임에서 이용자가 게임을 지속적으로 이용하는데 영향을 주는 주요 영향 요인을 찾고자 하는 것이다. 이를 위하여 가치, 기대일치, 지각된 즐거움의 독립변수들이 이용자 만족과 지속이용의도 종속변수에 영향을 미치는 연구모델과 가설을 개발하였다. 104명의 게임 이용자들을 대상으로 설문을 실시하였으며 구조방정식 분석 프로그램인 Partial Least Square 분석도구를 이용하여 확인적 요인분석과 가설검증을 실시하였다. 가설검증 결과, 기대일치는 만족에 영향을 미치고, 다시 만족은 지속이용의도에 영향을 미치는 것으로 나타났다. 지각된 즐거움은 만족에 정의 영향을 크게 미치는 것으로 조사되었다. 또한 만족은 기대일치, 지각된 즐거움과 지속 이용 의도 사이에서 완전매개를 수행하여 지속적 이용을 위해서는 이용자 만족이 핵심적 역할을 수행함을 보여 주었다. 이는 게임 업체들에게 이용자 만족을 통하여 지속적 이용이 일어난다는 중요한 시사점을 제공한다. 이러한 관점에서 본 연구 결과의 응용분야는 게임산업 전반과 게임 제작사들이 해당된다. 또한 마케팅과 정보기술 분야의 핵심 연구변수들을 도입하여 게임 산업에서 가장 중요한 지속이용의도를 설명한 것이 본 연구의 가장 큰 기여도와 차별성이라 할 수 있다.

• 지식경영연구
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• 제25권1호
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• pp.193-215
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• 2024

본 연구는 코로나-19시기에 따라 디지털로의 변화가 요구되는 시대 속에서 디지털 격차를 일으키는 주요 요인이 무엇인지 파악한다. 이를 통해, 디지털 격차를 해소할 수 있는 시사점을 도출하고자 한다. 특히 2020년과 2021년 한국지능정보사회진흥원이 실시한 디지털정보격차실태조사 데이터를 바탕으로, 두 해의 데이터 분석에서 일관되게 신뢰성과 타당성 기준을 충족한 항목을 사용하여 연구모델을 구축하였다. 연구 방법은 SmartPLS 4를 분석 도구로 사용하여 PLS-SEM 및 다중집단분석을 실시하였다. 연구 결과는 다음과 같다. 첫째, 2020년과 2021년을 통합한 코로나-19 시기의 모바일 인터넷 이용량은 디지털 역량, 활용, 사회참여를 제외한 활용결과에 긍정적인 영향을 받는 것으로 나타났다. 둘째, 디지털 활용의 영향은 코로나-19 시작 시기보다 확산 시기에 큰 폭으로 증가하였는데, 이는 코로나 확산이 지속되면서 디지털 활용에 대한 요구가 증가하였고, 그에 따라 인터넷 이용 증가도 같이 나타난 것으로 보인다. 셋째, 코로나-19 확산 시기에 따른 모바일 인터넷 이용량 변화에 영향을 주는 요인은 인구통계요인이기보다는 앞서 검증한 디지털 활용 변수가 크게 작용하고 있음을 확인하였다. 본 연구 결과를 통해 디지털 리터러시 프로그램 개발의 중요성을 다시 확인하였다. 특히, 모바일 인터넷 이용량 증가에는 디지털 활용이 중요한 역할을 하고 있으므로, 디지털 서비스 이용자들을 위한 교육 프로그램 구성 시 디지털 활용을 중심으로 이루어져야 함을 제안한다.

• 산경연구논집
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• 제7권3호
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• pp.13-18
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• 2016

Purpose - Usage of E-services is critical for businesses to maximize work efficiency and gain competitive advantage. The aim of the study is to explore how awareness of technology and e-services usage in an emerging economy in Pakistan. The studies aimed to explore as to what extent these factors can potentially motivate transport employees towards e-services; who are generally not aware about technology and hence also not confident in using it also. Research design, data, and methodology - Employees from the three transport subsidiary units from a large private company in Pakistan were sampled for the study. Through using self-administered technique, the questionnaires were distributed during the month of April, 2016 to 189 employees. A total of 150 responses were taken further for analysis where the study found a positive link between awareness of technology and e-services usage. Results - This study found positive relationship between intention to use and e-service usage among the employees of three subsidiary units. The paper has reported 30 percent variance explained by the predicting variables in relation with e-services usage. Conclusions - Employees could be motivated to use e-services and latest technology through enhancing their awareness about their respective importance and viability. Accordingly, organizations can foster employees' intentions to use to enhance e-service usage.

• 지식경영연구
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• 제9권3호
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• pp.21-42
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• 2008

As many companies have recognized the importance of Knowledge Management(KM), they have invested lots of their resources in developing and deploying Knowledge Management Systems(KMS) to organize and share knowledge. When they implemented KMS in their organizations, most of them had high expectations about KMS at tile beginning. However, as time passed, its usage was rapidly declined. There have been many attempts to increase its usage. Many research works have tried to find solutions from users and organizations viewpoints, instead of the actual usage data itself. In order to assess the usage level of KMS, they have normally utilized user's attitudes toward KMS by assuming that user attitudes have strong relationship with actual uses of KMS. The purpose of this study is to assess tile impacts of user, organizational, and job characteristics on the satisfaction and the usage levels of KMS. Unlike other studies, this study is to explore impact factors which affect the usage level of KMS in organizations by using actual KMS log data as well as user's attitudes.