• Title/Summary/Keyword: causal question

Search Result 67, Processing Time 0.024 seconds

A Study on the Influential Factors of Intention to Continued Use of e-Learning (이러닝의 특성과 유용성이 지속적 이용의도에 미치는 영향에 관한 연구)

  • Kwon, Sun-Dong;Yun, Suk-Ja
    • Journal of Information Technology Applications and Management
    • /
    • v.17 no.1
    • /
    • pp.35-54
    • /
    • 2010
  • Why does e-Learning service for individuals remain in the early development stage? To find the answers of this question, we adopted usefulness and intention to continued use as dependent variables based on technology acceptance model and inferred convenience, cost-effectiveness, social presence, interactivity, concentration, and procrastination as independent variables based on literature review and interview with e-Learning users. Convenience and cost-effectiveness of e-Learning tend to enhance usefulness and/or intention to continued use, while lack of social presence, interactivity, and concentration of e-Learning and academic procrastination tend to hinder usefulness and/or intention to continued use. To prove this research model, we used a data set collected from the survey. The respondents of survey were the undergraduate students who used voluntarily e-Learning. Data analysis was conducted using 275 respondents by partial least square. The analysis result of causal relation indicated that convenience and cost-effectiveness influenced both usefulness and intention to continued use, and that cost-effectiveness and concentration influenced only intention to continued use. But, interactivity and procrastination did not influence usefulness and intention to continued use.

  • PDF

A Study on Changes in the Relationship of Spaces with a New Structural Concept of Body (새로운 몸의 구조적 개념에 따른 공간의 관계성 변화에 관한 연구)

  • Lee, Jong-Se;Kim, Joo-Yun
    • Korean Institute of Interior Design Journal
    • /
    • v.16 no.1 s.60
    • /
    • pp.48-55
    • /
    • 2007
  • Proceedings in a new field of sciences and technologies like genetic engineering challenge to conventional concepts. It demonstrates a certain disappearance in conventional concepts that dominants our perceptions, such as organic, mechanical, and dichotomic concept of informative materials, and that is to be extended as a potential possibility. Then, what is a new space where our bodies that feel and cherish in their mind should live in these days as well as it makes senses by itself and should affect the principle that makes worlds? In addition, this study proposes a frame in the analysis in order to understand a section of modern designs with the question of 'what is the change in the relationship between relative structures in spaces and objects from a design point of view according to new structural concepts of body?' The major point of this analysis can be realized based on the assumption of the extension of the characteristics in the change of structural relationship in the aspect of post structuralism that includes non-structuralized relationship represented in modern philosophy, arts, and architectural works. Then, it can be accomplished as positive ideas in the foundation of space designs in future including the understand of 'new structural relationship' that can't be expressed as rationality and causal sequence by considering how the experiment conducted using several topics on body can be projected onto spaces through the process applied in the experiment.

Cytokines and Depression (사이토카인과 우울증)

  • Kim, Yong-Ku
    • Korean Journal of Biological Psychiatry
    • /
    • v.15 no.3
    • /
    • pp.175-185
    • /
    • 2008
  • Accumulating evidence has suggested the existence of reciprocal communication between immune, endocrine, and neurotransmitter system. Cytokine hypothesis of depression implies that increased pro-inflammatory cytokine such as -1, IL-6, IL-12, TNF-${\alpha}$, and IFN-${\gamma}$ in major depression, acting neuromodulators, play a key role in the mediation of behavioral, neuroendocrine, and neurochemical disturbances in depression. Concerning the relation between cytokines and serotonin metabolism, pro-inflammatory cytokines have profound effects on the metabolism of brain serotonin through the enzyme indoleamine-2,3-dioxygenase(IDO) that metabolizes tryptophan, the precursor of 5-HT to neurodegenerative quinolinate and neuroprotective kynurenate. The neurodegeneration process is reinforced by the neurotoxic effect of the hypercortisolemia during depression. From this perspective, it is possible that efficacy of antidepressants in the treatment of depression may, at least in part, rely on downregulation of pro-inflammatory cytokine synthesis. So, the use of cytokine synthesis inhibitors or cytokine antagonists may be a new treatment approach in depression. However, at present the question whether cytokines play a causal role in the onset of depression or are mere epiphenomena sustaining depressive symptoms remains to be elucidated. Nevertheless, cytokine hypothesis has created new perspectives in the study of psychological and pathophysiological mechanism that are associated with major depression, as well as the prospect for developing a new generation antidepressants.

  • PDF

Emotional Intelligence and Project Success: The Roles of Transformational Leadership and Organizational Commitment

  • DOAN, Thuy Thanh Thi;NGUYEN, Linh Cam Tran;NGUYEN, Thanh Dan Ngoc
    • The Journal of Asian Finance, Economics and Business
    • /
    • v.7 no.3
    • /
    • pp.223-233
    • /
    • 2020
  • The paper aims to examine the relationship of emotional intelligence on the project success, the causal relationship between emotional intelligence and project success, and also investigate the influence of emotional intelligence and the mediating role of transformational leadership as well as the moderating effect of organization commitment on the relationship between emotional intelligence and project success. Cross sessional research is applied to collect the data in this study. By applying quantitative research and survey question, the study collects 325 respondents who are the project managers. Snow-ball sampling method is used to distribute the questionnaires by face to face survey (68% of respondents) and online survey (32% of respondents). The collected data is analyzing by applying partial least square (PLS-SEM) via software SmartPLS 3.0.The result shows that the emotional intelligence and the transformational leadership making the project even more successful as the mediation actor. Furthermore, the project commitment also has the moderator effect between transformational leadership and project success. With the result of study, project managers should be aware of the importance of emotional intelligence and their commitment to the ability to manage projects successfully. A successful project is a combination of many actors, the most critical actor is the leader of the project.

Study of empowerment Factors of husbands in multicultural families in Korea - based on Grounded theory - (다문화가정 한국인남편의 적응역량 강화 과정에 관한 연구 - 근거이론방법을 적용하여 -)

  • Park, Jeong-Yun;Anh, Jin-Kyung
    • Korean Journal of Human Ecology
    • /
    • v.23 no.6
    • /
    • pp.981-997
    • /
    • 2014
  • This study set out to examine the adaptation capabilities of husbands in multicultural families and further identify strengths to maintain a healthy multicultural family based on the grounded theory. For those objectives, the investigator had an ongoing interview with ten husbands that had a child in the setting of multicultural family and were judged to maintain a healthy family. Question analysis through the method of Strauss & Cobin and the abstraction and categorization process among similar concepts identified total 89 concepts, 24 subcategories, and 11 categories. In a paradigm model according to the axial coding results, the causal condition was "having an international marriage with the spouse"; the contextual conditions were "crisis in the development of multicultural family" and "general family conflicts"; the mediating condition was "positive self-rationalization"; and the central phenomena were "family-oriented value" and "cultural tolerance." The operation and interaction strategies for them were "forming communicative couple relationships," "cultivating cultural sensibility," and "utilizing unofficial external resources." The adaptation capabilities were "satisfaction with family life" and "pride in building a healthy multicultural family."

Simple power analysis in causal mediation models for a dichotomous outcome based on the mediation proportion

  • Kim, Young Min;Cologne, John Bennett;Cullings, Harry Michael
    • Journal of the Korean Data and Information Science Society
    • /
    • v.28 no.3
    • /
    • pp.669-684
    • /
    • 2017
  • Mediation models are widely used in many fields of research and have recently gained attention in epidemiology. The mediation proportion is a standard measure to evaluate what part of the total exposure effect on an outcome may be explained by a particular mediator and to examine how important that pathway is relative to the overall exposure effect. A common question is how large a sample size is needed to achieve high statistical power or, equivalently, what magnitude of effect can be detected. Current power and sample size calculations for mediation analysis are limited and additional research is needed. We therefore propose a computer-intensive power analysis using the mediation proportion. We conduct simulation studies to calculate statistical powers and sample sizes. And then, we illustrate our power analysis using an example from the Adult Health Study of atomic-bomb survivors and demonstrate that the method is relatively straightforward to understand and compute.

An Analysis of Nursing Research on Diabetes Published in Korea from 1981 to 2000 (당뇨병에 관한 국내 간호연구 분석)

  • Hong Yong-Hae;Kim Myung-Ae
    • Journal of Korean Academy of Fundamentals of Nursing
    • /
    • v.8 no.3
    • /
    • pp.416-429
    • /
    • 2001
  • The purpose of this study was to analyze research trends and to suggest future directions for nursing research on the diabetes in Korea. The method was a review of 97 nursing research papers on diabetes published between 1981 and 2000. Analysis included year of publication, academic theses or not, research design, key words and the results. The results of the analysis can be summarized as follows : The number of the nursing research papers on diabetes has been increasing. Of those paper analyzed, it was found that 64 (65.97%) were master's theses, and 58 (59.79%) were descriptive or correlational studies. The most frequent key word was client behavior. Client behavior as the dependent variable was reported to be influenced by various causal variables but the results were not consistent. Nursing interventions reported as effective included education, exercise therapy, camps, and telephone coaching. Conclusion: We question whether the concepts, measurement scales, and theories used in these research papers were appropriate for Korean clients with diabetes. Development of concepts and theories for Korean clients is necessary.

  • PDF

Severity of Cowpea mosaic virus and Putkong Disease Monitoring and Purification of Cowpea mosaic virus (석량풋콩재배지에서의 동부모자이크바이러스병의 발생도 및 풋콩병해모니터링과 동부모자이크 바이러스의 순화)

  • Cho, Eui-Kyoo
    • Research in Plant Disease
    • /
    • v.13 no.1
    • /
    • pp.30-33
    • /
    • 2007
  • One hundred and eighty-six leaves of soybean cv. Seokryangputkong that showed mild mosaic symptoms were collected randomly and ELISA tests were conducted with those leaf samples to screen the presence of Cowpea mosaic virus (CPMV). Ninety-three out of 186 samples reacted positively to CPMV, but those samples did negatively to Soybean mosaic virus (SMV). At least, 55 leaf samples revealed higher values than that of positive control. The results strongly confirmed that CPMV occurred severely in soybean cv. Seokryangputkong. However, a question is raised on the primary reservoir and vector for transmission of this virus. Since the farmer changes seeds every year, seed transmission is excluded. The virus was also purified, the analysis of coat protein conformed the virus of cowpea mosaic virus and UV absorption pattern confirmed that the causal virus of mosaic disease in soybean putkong was cowpea mosaic virus.

Impacts of Employment Continuity on Life of the Elderly Participating the Senior Employment Project (노인일자리의 고용유사성이 참여노인의 삶에 미치는 영향)

  • Choi, Hye Ji
    • Korean Journal of Social Welfare
    • /
    • v.65 no.1
    • /
    • pp.247-270
    • /
    • 2013
  • This study started from a question about the causal relationship between employment continuity and quality of life of the elderly participating the Senior Employment Project. Based on Continuity theory and Similarity Model, this study investigated that direct impacts of continuity of employment on depression and life satisfaction and indirect impacts on depression and life satisfaction through job satisfaction and self efficacy. The study was designed as a social survey research. Data from 700 participants of the senior employment project was analyzed. The results revealed that only continuity of type of employment directly impacted on life satisfaction, and continuity of salary and expressed importance on continuity of employment indirectly impacted on depression as well as life satisfaction through self efficacy.

  • PDF

A Study on the Type of Attitude toward the Sexual Violence (성폭력에 대한 태도 유형)

  • Nam, Soon-Yeul;Yoo, Eun-Kwang;Park, Kyung-Eun
    • Women's Health Nursing
    • /
    • v.6 no.1
    • /
    • pp.5-17
    • /
    • 2000
  • The purpose of this study is to identify the type of attitude toward the sexual violence and to analyze the structure of subjectivity about the sexual violence. Q-methodological method was used. The Q concourse for this study was formed through literature review, open question and in-depth interview, 171 Q statements were obtained and finally 33 statements were selected. The subjects for Q classifications were 20 persons. The Quanl PC program was used for analysis. The results of the study were as follows : The first type, blaming offenders consisted of 10 subjects has the recognition that victims must not be blamed ; offenders are responsible for any circumstances ; and sexual violence is an infringement of human rights. the second type, blaming victims consisted of 3 subjects has the recognition that victims carelessness is causal factor of sexual violence. They recognized the sexual violence as an identical concept with sexual intercourse. The third type, blaming social moral consisted of 7 subjects has the recognition that the collapse of social ethics and moral gives rise to sexual violence. They recognized the sexual violence as both sexual intercourse and the infringement of human rights. In conclusion, the result leads to understand the type of attitude toward sexual violence in Korean sociocultural reality. Consequently, the results will be conductive to provide guidelines for nursing intervention and education program for preventing sexual violence.

  • PDF