• Title/Summary/Keyword: expected relationships

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Understanding why the public agricultural information services would meet troubles?: based on systems thinking approach

  • Lee, Jongtae;Park, Kyuhyun
    • Agribusiness and Information Management
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    • v.9 no.2
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    • pp.22-26
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    • 2017
  • This study aims to understand why public information systems in agricultural fields have shown lower performances than other industrialized fields and industries and how these problems would be fixed and overcame. To accomplish this research purpose, this study would overview the previous studies on developing agricultural information systems in public sectors and would find out meaningful and considerable factors. This study would accept the methodologies of literature review and systems thinking approaches to understand the relationships among the found factors and to suggest the conceptual research model. Agricultural information system should take care to reduce implement and maintenance costs to reduce the negative relationships between costs and expected service value and between expected service value to perceived service value. Also, it should be understood that impersonal response would reduce the eager to use the services, so the government sectors should consider positively to adopt the concept of CRM even though the government sectors traditionally have ignored its necessity. The failure of public information systems/services may be caused not only by lack of the contents but also by the failure of the persistent post management.

Small Firms' Adoption Intention of Inter-Firm Electronic Linkages (소기업의 기업간 전자적 연결 도입 의도에 관한 연구: 기대 가치와 거래 관계 특성의 관점)

  • Lee, Won-Jun;Kang, Youn-Jung;Kim, Kil-Sun
    • Asia pacific journal of information systems
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    • v.15 no.2
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    • pp.171-193
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    • 2005
  • Small firms are considered as the last mile in electronic networks of business enterprises. Since small firms lack in their resources and capabilities for IT deployment, it seems a challenging project to make them electronically linked to their trading partners. This study aims to investigate the factors that influence the intent of small firms to adopt electronic linkage to their trading partners. This study considers the context where small firms already have transaction relationships with partner firms and where their adoption of electronic linkage may influence the nature and performance of the transactional relationships. This study considers the expected value of electronic linkage and the joint actions of the trading firms as the major factors. Its research model also includes traditional factors such as influences from the industry and the trading partner, the support of CEO, and the readiness of the trading partner. Based on the survey data from more than 1000 small firms, the present study performs regression analysis and finds that all but one factor are significant in explaining the variations in the adoption intention of small firms. The exception is the joint action, which is shown to decrease the intention. Based on the results, this study offers business and policy implications that would be useful to business managers and policy makers.

Assessment of quantitative structure-activity relationship of toxicity prediction models for Korean chemical substance control legislation

  • Kim, Kwang-Yon;Shin, Seong Eun;No, Kyoung Tai
    • Environmental Analysis Health and Toxicology
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    • v.30 no.sup
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    • pp.7.1-7.10
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    • 2015
  • Objectives For successful adoption of legislation controlling registration and assessment of chemical substances, it is important to obtain sufficient toxicological experimental evidence and other related information. It is also essential to obtain a sufficient number of predicted risk and toxicity results. Particularly, methods used in predicting toxicities of chemical substances during acquisition of required data, ultimately become an economic method for future dealings with new substances. Although the need for such methods is gradually increasing, the-required information about reliability and applicability range has not been systematically provided. Methods There are various representative environmental and human toxicity models based on quantitative structure-activity relationships (QSAR). Here, we secured the 10 representative QSAR-based prediction models and its information that can make predictions about substances that are expected to be regulated. We used models that predict and confirm usability of the information expected to be collected and submitted according to the legislation. After collecting and evaluating each predictive model and relevant data, we prepared methods quantifying the scientific validity and reliability, which are essential conditions for using predictive models. Results We calculated predicted values for the models. Furthermore, we deduced and compared adequacies of the models using the Alternative non-testing method assessed for Registration, Evaluation, Authorization, and Restriction of Chemicals Substances scoring system, and deduced the applicability domains for each model. Additionally, we calculated and compared inclusion rates of substances expected to be regulated, to confirm the applicability. Conclusions We evaluated and compared the data, adequacy, and applicability of our selected QSAR-based toxicity prediction models, and included them in a database. Based on this data, we aimed to construct a system that can be used with predicted toxicity results. Furthermore, by presenting the suitability of individual predicted results, we aimed to provide a foundation that could be used in actual assessments and regulations.

Sequence Divergence and Phylogenetic Investigation of the Nymphalidae (Lepidoptera: Papilionoidea) Occurring in South Korea

  • Wan, Xinlong;Kim, Min Jee;Cho, Youngho;Jun, Jumin;Jeong, Heon Cheon;Lee, Kwang Youll;Kim, Iksoo
    • International Journal of Industrial Entomology and Biomaterials
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    • v.26 no.2
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    • pp.95-112
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    • 2013
  • As a first step toward understanding the divergence and relationships of the Nymphalidae (Lepidoptera: Papilionoidea) occurring in South Korea, cytochrome oxidase subunit I (COI), 16S ribosomal RNA (16S rRNA), and elongation factor-$1{\alpha}$ (EF-$1{\alpha}$) that comprise 3,501-3,716 bp were either sequenced (55 species) or the sequences were obtained from GenBank (23 species). The concatenated sequence divergence of six nymphalid subfamilies ranked in the following order: Danainae (10.3%), Satyrinae (9.5%), Limenitidinae (8.0%), Apaturinae (7.0%), Nymphalinae (6.7%), and Heliconiinae (6.2%). As has been reported in previous large scale international studies, the subfamilial relationships of (((((Limenitidinae + Heliconiinae) + (Nymphalinae + Apaturinae)) + Satyrinae) + Libytheinae) + Danainae) were also confirmed, except for the switched positions between Danainae and Libytheinae, and supported all subfamilies and tribe monophylies. Unlikely consistent phylogenetic relationships among genera within the majority of tribes in Nymphalidae, a conflicting relationship within the subfamily Apaturinae was obvious, presenting Apatura as sister to either Mimathyma or (Mimathyma + (Sephisa + (Hestina + Sasakia))), and both of these relationships are unconventional. Within the subfamily Limenitidinae, the genus Neptis was consistently revealed as a paraphyletic with respect to the genus Aldania, requiring further taxonomic investigation of the genus. Although limited, current sequence information and phylogenetic relationships are expected to be helpful for further studies.

A Study on the Impacting Factors Influencing on the Volunteer Firefighter's Satisfaction in Sejong City Upon their Activities as a Volunteer Firefighter (세종특별자치시 의용소방대원의 활동 만족도에 미치는 영향 요인 연구)

  • Kim, Seon Woong;Lee, Wonjoo;Lee, Chang-Seop
    • Fire Science and Engineering
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    • v.30 no.1
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    • pp.96-103
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    • 2016
  • The purpose of this paper is to study effects of participation motivations, relationships, and compensation on a satisfaction in activity of volunteer firefighter. For this purpose, we surveyed 106 volunteer firefighter worked in Sejong city. The survey data was analyzed the reliability in questionnaire design by SPSS 20.0 win program. Also, the interrelationship of each factors were confirmed by analysis of frequency, percentage and regression analysis. Furthermore, the regression analysis was performed in order to investigate effects of motivations, interpersonal relationships, and compensation on a satisfaction in activity of volunteer firefighter. A factor of motivations, interpersonal relationships, and compensation was found to be a positive influence on a satisfaction in activity of volunteer firefighter under significance probability of < 0.05. The overall satisfaction was influenced in order of motivations, compensation, interpersonal relationships. This paper is expected to serve as a basis for the efficient operation of the Korean Volunteer Fire Department.

Relationships between Teamwork Skills and Thinking Styles in Engineering Students (공과대학생의 팀워크 역량과 사고양식의 관계)

  • Hwang, Soonhee
    • Journal of Engineering Education Research
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    • v.20 no.2
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    • pp.39-49
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    • 2017
  • This research aims to explore the relationships between 'teamwork skills' (often called team activity competence) and 'thinking styles' of engineering students in Korea, and to provide an explanation for the application of team-based environment as well as for the increase of teamwork skills. Teams and team activity are pervasive in today's organization and there has been relatively much research on teamwork skills and its related factors. However, to date, little attention has been paid to the teamwork skills, essential factor in team-based environment and its relationships with thinking styles. This study was conducted with 383 engineering students at P University, and students' teamwork skills as well as thinking styles have been measured before and after team-based learning class (hereafter TBL). Our findings show that firstly, there was a significant increase of teamwork skills between before and after TBL class. Second, team activity competence was found to have a higher correlation with most of creativity generating styles (i.e. legislative, judicial, hierarchical and global styles). Third, hierarchical style was found to influence team activity more than other components, and also legislative, external, global and judicial styles contributed to team-based activity. These findings are expected to provide an explanation for the application of thinking styles in team-based environment and will be useful for the improvement of related courses in engineering school.

Influence of Dietary Factors of Smokers on Smoking-Induced DNA Damage as Reflected by Sister Chromatid Exchanges(SCE) (식이성요인이 SCE 빈도수로 본 흡연자의 DNA 손상에 미치는 영향)

  • 강명희
    • Journal of Nutrition and Health
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    • v.27 no.7
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    • pp.740-751
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    • 1994
  • Sister chromatid exchanges(SCE) in peripheral lymphocytes is recently used as a biomarker for increased cytogenetic damage in smokers. The purpose of the investigation was to determine if there were any relationships between dietary factors and their DNA damage as measured by SCE test in a group of 62 male cigarette smokers and 36 non-smokers. As expected, smokers as compared with non-smokers had high SCE levels (10.59$\pm$0.21 versus 9.23$\pm$0.17 SCE/lymphocytes ; p<0.05). No significant relationships were observed between SCEs and age in smokers and non-smokers. In smokers, SCEs were negatively correlated with egg frequency score(r=-0.336) and total food frequency scores(r=-0.283). In non-smokers, SCEs were positively correlated with white vegetable frequency score(r=0.333) and instant food frequency score(r=0.382). There was a positive association between SCEs and the history of coffee intake of smokers(r=0.318). SCE frequency was not influenced by any other dietary factors considered ; dietary diversity and quality scores, alcohol consumption, use of processed foods and intake of burned food. No significant relationships were found between SCEs and serum cholesterol or other hematological parameters of the subjects. These results indicate that increased egg frequency score, total food frequency score which reflects dietary quality, and decreased coffee intake may reduce cancer risk by preventing smoking-induced DNA damage as reflected by sister chromatid exchanges in human lymphocytes.

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LANDSLIDE SUSCEPTIBILITY MAPPING AND VERIFICATION USING THE GIS AND BAYESIAN PROBABILITY MODEL IN BOEUN, KOREA

  • Choi, Jae-Won;Lee, Sa-Ro;Yu, Young-Tae
    • Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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    • 2003.04a
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    • pp.100-100
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    • 2003
  • The purpose of this study is to reveals spatial relationships between landslides and geospatial data set, map the landslide susceptibility using the relationships and verify the landslide susceptibility using the landslide occurrence data in Bosun area in 1998. Landslide locations were detected from aerial photography and field survey and topography, soil, forest, and land use data sets were constructed as a spatial database using GIS. As the landslide occurrence factors, slope, aspect, curvature and type of topography, texture, material, drainage and effective thickness of soil, type, age, diameter and density of wood and land use were used. Is extract the relationship between landslides and geospatial database, Bayesian probability methods, likelihood ratio and weight of evidence, were applied and the ratio and contrast value that is W$\^$+/- W$\^$-/ were calculated. The landslide susceptibility index was calculated by summation of the likelihood ratio and contrast value and the landslide susceptibility maps were generated using the index. As a result, it is expected that spatial relationships between landslides and geospatial database is helpful to explain the characteristics of landslide and the landslide susceptibility map is used to reduce associated hazards, and to plan land use and construction.

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Structural Relationships between Quality, Satisfaction, and Behavioral Intentions in Rural Responsible Tourism: Moderating Effects of Age (농촌 공정관광의 품질과 만족이 행동의도에 미치는 영향)

  • Kim, Kyung-Hee;Lee, Sun-Min
    • The Korean Journal of Community Living Science
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    • v.26 no.3
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    • pp.523-540
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    • 2015
  • This study examines the structural relationships between service quality, satisfaction, and behavioral intentions in responsible tourism. In particular, the study focuses on moderating effects of age. Data were collected from 471 tourists from seven responsible tourism agencies. SPSS 20.0 and AMOS 18.0 were used for frequency, reliability, exploratory factor, confirmatory factor, and path analyses. The results of a exploratory factor analysis yield two dimensions of service quality (functional quality and technical quality). The results of structural equation modeling indicate that functional quality and technical quality had positive effects on satisfaction, which in turn had a positive effect on behavioral intentions. In addition, age moderated the relationships between service quality, satisfaction, and behavioral intentions such that functional quality had a positive effect on satisfaction in the group of tourists in their twenties and thirties and that functional quality and technical quality were important factors for tourists in their forties. The results are expected to help responsible tourism communities better manage service quality to increase tourist satisfaction.

Characterization of six new complete mitochondrial genomes of Chiasmodontidae (Scombriformes, Percomorpha) and considerations about the phylogenetic relationships of the family

  • Igor Henrique Rodrigues-Oliveira;Rubens Pasa;Fabiano Bezerra Menegidio;Karine Frehner Kavalco
    • Genomics & Informatics
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    • v.21 no.1
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    • pp.10.1-10.6
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    • 2023
  • The fishes of the Chiasmodontidae family, known as swallower fishes, are species adapted to live in deep seas. Several studies have shown the proximity of this family to Tetragonuridae and Amarsipidae. However, the phylogenetic position of this clade related to other Pelagiaria groups remains uncertain even when phylogenomic studies are employed. Since the low number of published mitogenomes, our study aimed to assemble six new mitochondrial genomes of Chiasmodontidae from database libraries to expand the discussion regarding the phylogeny of this group within Scombriformes. As expected, the composition and organization of mitogenomes were stable among the analyzed species, although we detected repetitive sequences in the D-loop of species of the genus Kali not seen in Chiasmodon, Dysalotus, and Pseudoscopelus. Our phylogeny incorporating 51 mitogenomes from several families of Scombriformes, including nine chiasmodontids, recovered interfamilial relationships well established in previous studies, including a clade containing Chiasmodontidae, Amarsipidae, and Tetragonuridae. However, phylogenetic relationships between larger clades remain unclear, with disagreements between different phylogenomic studies. We argue that such inconsistencies are not only due to biases and limitations in the data but mainly to complex biological events in the adaptive irradiation of Scombriformes after the Cretaceous-Paleogene extinction event.