• 제목/요약/키워드: systematic study

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What Do Consumers Expect and Gain from the Sharing Economy? A Systematic Literature Review (2016-2021) on the Antecedents and Outcomes

  • Jeesoo Kim;Soyeong Lee;Zhenghao Tong;Hongjoo Woo
    • 한국의류학회지
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    • 제48권2호
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    • pp.367-381
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    • 2024
  • The sharing economy (SE) describes an economic system in which consumers share a product or service via collaborative consumption. Reasonably, the SE receives much attention in the fashion industry as a sustainable form of consumption. However, a systematic review of the antecedents and outcomes of consumer participation in SE is limited by researchers' and practitioners' hindered understanding of what consumers expect and gain from the SE. This study offers a systematic review of the SE research conducted from January 2016 to July 2021 and proposes a conceptual model. In terms of antecedents, three factors, composed of nine categories and 153 variables, were identified: 1) consumer factors (80 variables), 2) platform/product factors (69 variables), and 3) environmental factors (4 variables). The outcomes included 14 variables divided into two categories: 1) positive outcomes (8 variables) and 2) negative outcomes (6 variables). The results provide recommendations for future research on applying the SE to the fashion sector. First, to more thoroughly investigating antecedents of consumer participation in fashion sharing, the research must focus on barriers and environmental factors, in addition to demographic and psychological variables. Secondly, research on the outcomes of participating in fashion sharing, including economic and social benefits, is needed.

Soy Supplementation Does Not Affect Serum Adiponectin Levels in Adults: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

  • Jahangir Karimian;Parivash Shekarchizadeh-Esfahani
    • Clinical Nutrition Research
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    • 제13권2호
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    • pp.130-138
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    • 2024
  • Numerous studies have indicated that low levels of serum adiponectin are linked with the development of various chronic diseases. While some recent research has suggested that soy has a positive impact on serum adiponectin levels, the results are inconsistent. Therefore, we aim to conduct a thorough systematic review and meta-analysis of randomized controlled trials (RCTs) that investigate the effects of soy on serum adiponectin levels in adults. The search was conducted until March 2024 on PubMed, Scopus, Web of Science, and Cochrane Library databases to identify RCTs that studied the effects of soy supplementation on serum adiponectin levels. A random-effects model was used to pool the weighted mean differences (WMDs). Ten and nine RCTs were selected for the systematic review and meta-analysis, respectively. After analyzing data from 9 eligible RCTs, it was found that soy supplementation did not significantly impact the concentrations of adiponectin (WMD = -0.24㎍/mL; 95% confidence interval, -1.56 to 1.09; p = 0.72). However, there was significant heterogeneity between the studies (I2 = 89.8%, p < 0.001). Sensitivity analysis showed that overall estimates were not affected by the elimination of any study. We did not observe any evidence regarding publication bias. In conclusion, soy supplementation did not have a significant effect on adiponectin levels in adults. However, further RCTs are needed with longer intervention duration, higher doses, and studies conducted in different countries.

의료서비스종사자의 역할갈등에 관한 체계적 문헌고찰 (A Systematic Review on Role Conflicts of Medical Service Workers)

  • 임순연;이순영
    • 융합정보논문지
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    • 제8권5호
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    • pp.1-10
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    • 2018
  • 본 연구는 의료서비스종사자의 역할갈등에 관한 선행연구 결과를 체계적으로 수집, 분석하여 역할갈등 측정도구와 관련요인에 대한 분석을 실시하였다. PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-analysis)의 체계적 문헌고찰 가이드라인에 의거하여 수집된 문헌 중 최종 분석에 사용된 문헌은 33편이었다. 김문실과 박상연의 도구를 사용한 문헌은 14편, Rizzio, house와 Lirtzaman의 도구를 사용한 문헌은 12편, 이은희 등의 도구를 사용한 문헌은 3편이었다. 33편의 문헌 중 5편의 문헌에서 질적 연구방법이 사용되었다. 문헌 분석 결과 역할갈등이 높을수록 직무만족과 재직의도, 조직몰입은 낮아지고, 소진과 직무스트레스, 이직의도는 증가하였다. 본 연구에서는 역할갈등과 다양한 변인 간의 상관관계 및 영향요인에 국한되어 분석하였기에 향후 본 연구 연구결과를 기초로 하여 의료서비스종사자의 역할갈등에 대한 대처방안 및 중재방안에 관한 연구가 활발히 진행되길 기대한다.

시판 후 의료기기 임상평가를 위한 체계적 문헌고찰 활용 방안 연구: 안과용전기수술기 사례를 중심으로 (A Study on the Application of Systematic Literature Review for Post-Market Clinical Evaluation of Medical Devices: Focused on the Ophthalmic Electrosurgical system)

  • 김병관;최영숙;김미선;양석조
    • 대한의용생체공학회:의공학회지
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    • 제41권1호
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    • pp.35-41
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    • 2020
  • In this study, we examined whether the systematic literature review method used in the field of evidence-based medicine could be used for post-market clinical evaluation of medical devices by modifying them to fit the regulatory perspective of medical devices in Korea. For this purpose, systematic literature review was modified and applied to conduct a clinical literature survey on the ophthalmic electrosurgical system(Trabectome®, NeoMediX Corp) used for the treatment of glaucoma. A total of six documents were finally selected, and clinical safety and efficacy information on the indications of the ophthalmic electrosurgical system were effectively presented. In addition, general safety information and unexpected safety information could be distinguished through comparison with medical device adverse event reporting cases. The method used in this study is expected to be used in various ways throughout post-market medical device safety management system and for the purpose of regulation improvement, especially in the field of ophthalmic electrosurgical system.

음악 중재 프로그램이 ADHD 아동에 미치는 효과에 대한 융복합 연구 -체계적 문헌고찰 및 메타분석- (Convergence Study on the Effect of Music Mediation Program on Children with ADHD -Systematic Review and Meta-Analysis-)

  • 조미란;박혜영
    • 디지털융복합연구
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    • 제17권10호
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    • pp.497-507
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    • 2019
  • 본 연구의 목적은 국내에서 ADHD 아동을 대상으로 실시된 음악 중재 프로그램의 효과를 체계적 문헌고찰과 메타분석을 통해 검증하는 것이다. 이를 위해 2000년부터 2019년 6월까지 출판된 논문 1,856편 가운데 선정기준에 부합하고 대조집단이 있는 실험연구 9편을 분석하였다. 일반적 특성, 음악 중재 특성, 연구별 목표 및 평가도구의 네가지 기준으로 체계적 문헌고찰을 실시한 결과, 대부분의 논문이 음악 활동, 목표, 평가도구를 각각 2가지 이상 사용하였으며, 특히 사회성과 주의집중력 향상을 위한 논문의 비중이 높았다. 메타분석 결과, 전체는 중간효과크기로 나타났으며, 주의력결핍과 사회성은 효과크기가 낮은 반면, 문제행동은 중간효과크기로 나타났다. 이는 ADHD 아동을 위한 음악 중재에서 표준화된 평가도구 사용의 중요성을 밝힌 것과, 음악 중재를 개발하는 데에 중요한 기초자료로 활용될 수 있다는 점에서 의의를 갖는다.

Acute abdomen following COVID-19 vaccination: a systematic review

  • Nelson Luis Cahuapaza-Gutierrez;Renzo Pajuelo-Vasquez;Cristina Quiroz-Narvaez;Flavia Rioja-Torres;Maria Quispe-Andahua;Fernando M. Runzer-Colmenares
    • Clinical and Experimental Vaccine Research
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    • 제13권1호
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    • pp.42-53
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    • 2024
  • Purpose: Conduct a systematic review of case reports and case series regarding the development of acute abdomen following coronavirus disease 2019 (COVID-19) vaccination, to describe the possible association and the clinical and demographic characteristics in detail. Materials and Methods: This study included case report studies and case series that focused on the development of acute abdomen following COVID-19 vaccination. Systematic review studies, literature, letters to the editor, brief comments, and so forth were excluded. PubMed, Scopus, EMBASE, and Web of Science databases were searched until June 15, 2023. The Joanna Briggs Institute tool was used to assess the risk of bias and the quality of the study. Descriptive data were presented as frequency, median, mean, and standard deviation. Results: Seventeen clinical case studies were identified, evaluating 17 patients with acute abdomen associated with COVID-19 vaccination, which included acute appendicitis (n=3), acute pancreatitis (n=9), diverticulitis (n=1), cholecystitis (n=2), and colitis (n=2). The COVID-19 vaccine most commonly linked to acute abdomen was Pfizer-BioNTech (messenger RNA), accounting for 64.71% of cases. Acute abdomen predominantly occurred after the first vaccine dose (52.94%). All patients responded objectively to medical (88.34%) and surgical (11.76%) treatment and were discharged within a few weeks. No cases of death were reported. Conclusion: Acute abdomen is a rare complication of great interest in the medical and surgical practice of COVID-19 vaccination. Our study is based on a small sample of patients; therefore, it is recommended to conduct future observational studies to fully elucidate the underlying mechanisms of this association.

국내 프랜차이즈 사업에서의 인적자원개발에 관한 체계적 문헌 고찰 (Systematic Literature Review for HRD in Korea Franchise Business)

  • 김은성;리상섭
    • 한국프랜차이즈경영연구
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    • 제10권2호
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    • pp.33-47
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    • 2019
  • Purpose - The purpose of this study is to classify and analyze existing studies from various angles through systematic literature review of how human resources development has been researched in the domestic franchise business. These studies are intended to suggest the direction in which human resource development research should be conducted in the future in the franchise business. Research design, data, and methodology - This study is based on systematic literature review methodology. It has gone through the process of subject language setting, literature search routing, search term selection, literature selection, literature classification and literature analysis. The systematic literature review identified 59 peer-reviewed dissertations and scientific journal publications on the subject of HRD in Korea franchise business. Result - This study analyzed by research methods, research industries, research population and dependent variable using the systematic review process. The literature studied in the 2000s mainly led to research on education and training of franchise employees in beauty franchise business. In the literature studied since 2010, human resources development was mainly studied in the supervisor in the restaurant franchise business, and in the study of competence rather than education and training. According to the research methods, statistical methods were mostly relatively simple, such as t-test or one-way distribution analysis until the 2000s, and after 2010, in-depth and structural studies using multiple return analysis, structural method analysis, path analysis, multi-dimensional scale analysis, AHP, etc were conducted. When classified by study dependant, early research until the 2000s focused on the study of education and training, which is an independent variable, on the satisfaction of education programs, job satisfaction, and immersion. On the other hand, studies conducted since 2010 have produced more complex results using various medium variants, and those related to management performance and relationship performance have been mainly studied, rather than the satisfaction of the education itself. Conclusions - While the domestic franchise business is expanding in terms of quantity, such as the number of franchises and franchises, the development in terms of quality for the joint growth of franchises and franchisees is still lacking. In order for the franchisee to continue to grow with each other, the franchisee must identify and develop their current performance or expected capabilities through capacity modeling at various targets and levels.

실험 결과 해석 과정에서 사용한 체계적 비유가 고등학생들의 효소 개념 변화에 미친 영향 (The Influence of the Systematic Analogies Used at the Interpretation of Experimental Results on High School Students' Conceptual Change of Enzymes)

  • 이원경;김희백
    • 한국과학교육학회지
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    • 제27권7호
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    • pp.663-675
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    • 2007
  • 세포 내의 화학 반응은 매우 복잡하고 추상적이어서 학생들이 이해하는 데 어려움을 갖고 있다. 본 연구에서는 이러한 세포 내 화학 반응에서 중요한 역할을 하는 효소 작용에 대한 이해를 돕기 위해 실험 결과 해석 과정에서 체계적 비유를 사용한 수업을 계획하고 10학년 학생들을 대상으로 이 수업이 효소 개념 이해에 미친 효과와 그 과정에서 체계적 비유가 어떤 역할을 하였는지 분석하였다. 실험반 학생들의 효소 개념 이해 정도가 대조반에 비해 유의수준 0.05에서 통계적으로 유의미한 차이를 보여 체계적 비유가 효소 개념 이해에 효과적임을 나타내었다. 효소 작용 개념을 내용별로 세분하여 살펴보면 특히 '온도 pH에 따른 효소 구조 변화와 반응 속도', '효소의 계속적 무작위적 작용'과 같이 학생들이 이해하기 어려워하는 평형 범주의 속성을 지닌 개념에 대한 이해에서 체계적 비유의 효과가 크게 나타났다. 이 과정에서 체계적 비유는 학생들의 개념 지위를 향상시키는데 긍정적인 역할을 하였다. 비유물의 가시화와 친숙성은 학생들의 효소 작용 개념에 대한 이해가능성을 높였으며, 효소 반응 실험에서 나타난 현상을 과학 개념과 연결짓는데 발판 역할을 함으로써 실험 결과를 과학 개념으로 일관성 있게 설명할 수 있게하여 개념 지위를 그럴듯함으로 향상시켰다. 또한 학생들에게 친숙한 비유는 학생들의 흥미를 유발시키고 어려운 과학 개념에 쉽게 다가갈 수 있도록 함으로써 정의적 측면에서도 매우 긍정적인 역할을 하였다.

산업용 리프트의 제어로직 설계 및 PLC 프로그래밍을 위한 체계화 연구 (A systematic approach to the control logic design and PLC programming of a industrial lift)

  • 박노억
    • 한국공작기계학회:학술대회논문집
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    • 한국공작기계학회 1999년도 추계학술대회 논문집 - 한국공작기계학회
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    • pp.452-457
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    • 1999
  • The recent control system has been changed into the type of PLC(Programmable Logic Controller) control. Up to now, systematic approach of PLC programming or control logic design is not suggested. In this study, the design process of the control logic is systematized and concrete process in each step is suggested. This systematized approach lead developer to be convenient to implement control system. When some error is occurred in the system, this approach enable the developer to analyze the reason of error rapidly and the system is amended according to systematic information of the analysis. The example of control system implementation following this approach is introduced.

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RMM과 XML의 결합을 통한 웹 애플리케이션 설계 (An Approach to Web Application Design by Integrating RMM with XML)

  • 최재화;류수인
    • 한국산업정보학회논문지
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    • 제7권2호
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    • pp.6-15
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    • 2002
  • 웹 기술의 발전은 웹 사이트와 사용자의 급속한 증가를 가져 왔으며, 많은 기업은 인터넷을 통한 비즈니스 거래를 지원하는 웹 애플리케이션을 기본 응용시스템으로 개발하고 있다. 이러한 웹 애플리케이션 을 개발하기 위해서는 체계적인 개발방법이 필요하지만 많은 기업들이 체계적으로 웹 애플리케이션을 설계하고 있지 못하다. 본 논문은 웹을 기반으로 하는 전자상거래시스템의 효과적이고 체계적인 개발을 위한 설계방법의 하나를 제시한다. 구체적으로 하이퍼미디어 애플리케이션 개발 모델인 RMM (Relationship Management Methodology)을 이용하여 개념적 모델을 디자인하고, 그에 대한 XML(extensible Markup Language) Schema를 디자인하는 보다 체계적인 웹 애플리케이션 설계방법을 예시한다.

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