• 제목/요약/키워드: systematic relationship

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Selaginella austrotibetica (Selaginellaceae), a new spikemoss from Xizang, China

  • Meng-Hua Zhang;Jie Yang;Aleksandr Petrovich Shalimov;Jong-Soo Kang;Xian-Chun Zhang
    • Journal of Species Research
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    • 제13권1호
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    • pp.1-9
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    • 2024
  • Selaginella austrotibetica, a new spikemoss species from China, is described. The species is epipetric and was found on a moss-covered rocky cliff by a riverbank. Morphologically, it is unlike any anisosporophyllous species in the genus Selaginella. However, it resembles species of the S. sanguinolenta group, especially similar to S. sajanensis in gross morphology, except for the characters of strobilus. The molecular phylogenetic analysis clearly showed that S. austrotibetica was nested within the anisosporophyllous species clade, forming a sister relationship with the clade of S. vaginata and S. xipholepis, and distinct from the S. sanguinolenta group, including S. sajanensis. Although S. austrotibetica is sister to the clade of S. vaginata and S. xipholepis, the species can be clearly distinguished by its sparse leaves on branches, dorsal leaves that are broad-ovate, base obtuse to rounded, margin denticulate or very shortly sparsely ciliolate, and leaves that are slightly thick and shiny. Therefore, we described Selaginella austrotibetica as a new species and discuss its phylogenetic relationships within the genus Selaginella.

객실승무원의 항공기 안전의도와 안전행동의 영향요인 분석: TPB와 SCT 통합모델 (A Study on the Relationship of Factors Related to Cabin Crews' Safety Behavior: Integration of TPB & SCT)

  • 김지윤;박상범
    • 산경연구논집
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    • 제10권11호
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    • pp.57-69
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    • 2019
  • Purpose: The purpose of this study is to investigate systematic and comprehensive explanation about safety behavior by applying integrated model of Theory of Planned Behavior (TPB) and Social Cognitive Theory (SCT). By showing the interrelationship of effects of factors affecting safety behavior in a single model, comprehensive understanding regarding safety behavior will be possible. Research design, data, and methodology: This study try to integrate the two theory, TPB and SCT, to introduce background factors, such as safety culture, affecting cognitive factors of subjective norm, safety attitude, perceived behavioral control, safety consciousness, which are again affecting behavior intention of the TPB. We composed 73 questionnaire to analyse the relationship among factors affecting safety behavior. The questionnaire were distributed to stewards and stewardesses of KAL, ASIANA, and LCCs. 422 were collected and used for analysis. Factor analysis, regression analysis, and control effect analysis were conducted using SPSS windows version 2.0. Results: The safety culture, safety atmosphere, and safety education/training were turned out to affect subjective norm, safety attitude, perceived behavioral control, safety consciousness. And the cognitive factors also showed to affect safety intention significantly. The results that safety intention affects safety behavior was found. Also there are control effect of cost consciousness and punishment while safety intention affects safety behavior. Conclusions: Safety is the virtue that should be given first priority to in our daily life. To secure safety, everyone in an organization should have high level of safety intention and conduct safety behavior. The study results provide systematic and comprehensive understandings on the relationship among factors affecting cabin crews' safety behavior. The results will help design safety related regulations, education/training, and support employees to engage in safety behavior related activities.

농촌주민의 여가소비유형과 만족도 (Rural Residents' Leisure Satisfactions and Types by Social demographics in Korea)

  • 조영숙;이문주;황대용
    • 농촌지도와개발
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    • 제16권4호
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    • pp.1021-1048
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    • 2009
  • Based on Rural living indicator -2005 survey data, in RDA this study attempted to investigate Rural Residents' real life satisfaction or identity model by the types of leisure consumption depending on each generation and explored the relationship between leisure consumption and the enhancement of self-identity/ interpersonal relationship, and that between leisure consumption satisfaction and real life satisfaction. Based on systematic random sampling with constructed questionnaires, 1,870 data were collected and analyzed. Overall, the results of this study showed that there are statistically significant differences between generation in leisure consumption. In detail, the findings of this study are as follows. The types of Rural Residents' leisure consumption can be divided into three styles including Semi-leisure type, Passive leisure type and Total leisure type consumption. The preferred types of leisure consumption of Rural Residents' were Semi-leisure type, Passive leisure type and Total leisure type in order. Except for times-pending leisure culture consumption, Semi-leisure type and Passive leisure type influenced on the enhancement of self-identity and interpersonal relationship, then the enhancement of self-identity and interpersonal relationship influenced on leisure consumption-satisfaction, and finally leisure consumption satisfaction influenced on real life satisfaction.

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인터넷 쇼핑몰 이용고객의 관계지향성에 관한 질적 연구 (A Qualitative Study on Customer Relationship-orientation in Internet Shopping Mall)

  • 서문식;서용한
    • 마케팅과학연구
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    • 제8권
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    • pp.269-290
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    • 2001
  • 본 연구는 질적 연구를 통해 인터넷 쇼핑몰을 이용하는 고객의 행동특성과 장기지향성과 관계 단절행동 특성을 살펴보았다. 연구결과 인터넷 쇼핑몰 이용고객도 특정 쇼핑몰에 대한 장기지향성을 가지고 있음을 확인할 수 있었다. 하지만 인터넷 쇼핑몰에 대한 고객의 장기 지향성은 일반오프라인에서의 관계와는 달리 '쉽게 깨어질 수 있는 제한적 장기지향성' 이라는 특징을 지니고 있었다. 이러한 연구결과는 인터넷 고객은 여러 가지 이유로 인해 '타성적 장기지향성'을 지니고 있 음을 의미하는 것이다. 인터넷 쇼핑몰이 경쟁우위 확보를 확보하기 위해서는 고객선점이 중요하다 따라서 인터넷 마케팅 관리자는 고객과의 관계초기 단계에는 신뢰확보와 고객만족 달성에 노력하는 것뿐만 아니라 사소한 관계문제에도 세심함 배려를 통해 유대관계를 강화하는 전략이 필요하다.

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The Relationship between Management bonuses with Earnings stability in Information technology and Computer listed companies on the Tehran Stock Exchange

  • Moghani, Reza;Mohammadi, Shaban;Esmaeilioghaz, Hamed
    • 융합경영연구
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    • 제4권4호
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    • pp.17-24
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    • 2016
  • The purpose of the present study is to investigate the relationship between Management bonuses and earnings stability of the listed companies on the Tehran Stock Exchange (TSE). The population includes 94 firms selected through systematic sampling. The data is collected from the audited financial statements of the firms provided by TSE's website from 2009 to 2016. The results of multiple linear regression analysis show that there is a significant relationship between Management bonuses and earnings stability. The aim of this study primarily investigating the relationship between earnings stability and management bonus. In the case of this target, the next goal of this research is to develop a proposal for legislation in the domain of capital market, students and faculty as well as accounting information users provide research interests. Observations show many companies despite the decline in profitability, bonus managers to continually pay. Increase in listed companies Stock Exchange as well as the importance of communication between earnings quality and bonus managers in Financial Accounting the authors created an incentive to research about this relationship do. The results of this research could be the development of literature done in the past. Thus, more knowledge about the issue of sustainability and its relation to bonus managers the users of accounting information, accounting courses provide students and faculty.

A Meta-Analysis on the Correlation between Job Satisfaction, Turnover Intention and Organizational Commitment among Nurses

  • Lee, Hong-Ki;Myoun, Sungmin
    • 한국컴퓨터정보학회논문지
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    • 제22권4호
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    • pp.115-122
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    • 2017
  • The purpose of this study was to evaluate the effect of job satisfaction on turnover intention and organizational commitment in nurses through a systematic literature review and meta-analysis. For the study purpose, 26 studies were selected through a systematic process of using several databases and used to estimate the effect size of correlation between 3 variables. Meta-analysis was applied by usingcrandom effects model, and effect sizes on three types were calculated. Results are as follows. First, the effect size of correlation between job satisfaction and turnover intention is -.58. Second, the effect size of correlation between job satisfaction and organizational commitment is .77. Third, for the organizational commitment and turnover intention relationship, the effect of correlation is -0.68. Furthermore, publication bias analysis were assessed the results by using the funnel plot, Egger's regression test, fail-safe N, and trim-and-fill test. Based on these results, implications for the study were discussed.

용접구조물의 구속효과와 균열발생특성간 상관관계 (A Relationship Between Restraint Effect of Weldment and Crack Initiation Characteristics)

  • 이제명;백점기;윤동렬
    • 한국해양공학회지
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    • 제17권2호
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    • pp.14-20
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    • 2003
  • In this paper, a practical design criteria for judgement of crack occurrence in weldments is presented as a function of typical welding parameters, such as diffusible hydrogen, restraint intensity, and preheating temperature. The elastic analyses using the finite element techniques are employed in order to quantify the restraint intensities, numerically. Systematic experiments are also conducted in order to investigate the propensity of crack to typical welding parameters. The results of numerical estimation using the proposed method for the experimental specimens show the usefulness as a practical tool in welding induced crack problems with extensive uncertainties. Systematic experiments are also conducted in order to investigate the propensity of crack to typical welding parameters. The results of numerical estimation using the proposed method for the experimental specimens show the usefulness as a practical tool in welding induced crack problems with extensive uncertainties.

한국산 늑대거미과의 게통분류학적 연구 (The Systematic relationship of Korean Lycosidae(Araneae))

  • 김주필
    • Animal Systematics, Evolution and Diversity
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    • 제13권1호
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    • pp.45-52
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    • 1997
  • 계통분류학의 분지(cladistics)의 원리와 방법들을 한국산 늑대거미과(Lycosidae)의 7 속들 사이의 계통분류학적 관계를 분석하는데 적용시켰다. 형질( ∼)의 형태적, 생리적 그리고 생태적 특성에 기초를 둔 분석으로부터 분지도(cladogram) Fig. 1, 2, 3을 만들었다. 한국산 늑대거미과는 아로페늑대거미속, 논늑대거미속, 짧은마디늑대거미속, 긴마디늑대거미 속, 부이표늑대거미속, 곤봉표늑대거미속, 마른마디늑대거미속의 7속으로 나누어진다. 필자는 그간의 국내외 여러학자들이 연구한 사항을 정리하여 지금까지 짧은마디 늑대거미아과에 속 해있는 논늑대거미속과 곤봉표늑대거미속을 이 아과에서 분리하여 논늑대거미아과를 새로 설정하였다. 이로써 한국산 늑대거미과에는 부이표늑대거미아과, 긴마디늑대거미아과, 짧은 마디늑대거미아과, 논늑대거미아과의 4개 아과로 새로이 정리하였다.

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체계적 배치계획을 이용한 특수 건축물의 설계사례 (Design of A Special Facility using Systematic Layout Planning(SLP))

  • 박세진
    • 교육녹색환경연구
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    • 제2권1호
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    • pp.69-79
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    • 2002
  • This paper investigates the methodology to develop a layout of the simulator for measuring and evaluating human sensibility. Since the simulator layout is different from general building layouts in that it is organized in order to communicate systematically between facilities, laboratories to evaluate human sensibility and equipments to support experiments in simulator, two approaches based on eigenvector and cut tree are support to develop a simulator layout. Qualitative input data (relationship chart, space requirements for each laboratory and equipment) are obtained and transformed into quantitative data. The information obtained by two approaches provides several meaningful clues to generate the simulator layout. The simulator layout is presented based on the obtained information by two approaches. Extracted quantitative data by using eigenvector and cut tree are meaningful of generating the simulator layout.

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Alcohol Consumption and Risk of Cancer: a Systematic Literature Review

  • de Menezes, Raquel Ferreira;Bergmann, Anke;Thuler, Luiz Claudio Santos
    • Asian Pacific Journal of Cancer Prevention
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    • 제14권9호
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    • pp.4965-4972
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    • 2013
  • This study aimed to discuss the consumption of alcohol as a risk factor for major cancers. We performed a search in the PubMed database, using the following inclusion criteria: meta-analysis published in English in the last 10 years that addressed the relationship between alcohol and the risk of developing cancer. The results indicate that moderate to heavy consumption of alcohol increases the risk of developing cancer of the oral cavity and pharynx, esophagus, stomach, larynx, colorectum, central nervous system, pancreas, breast and prostate. This review did not find any association between alcohol consumption and an increased risk of cancers of the lung, bladder, endometrium and ovary. It was also observed that alcohol consumption may be inversely related to thyroid cancer. Our systematic review has confirmed consumption of alcohol as a risk factor for the development of several types of cancer.