• 제목/요약/키워드: a meta analysis

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소셜 네트워크 기반 공유경제 서비스에 관한 밀레니얼스 소비자 세분화 연구: 사이코그래픽 관점에서 (Segmenting Korean Millennial Consumers of Sharing Economy Services on Social Networking: A Psychographic-based Approach)

  • 이재헌;최재원;김기연
    • 인터넷정보학회논문지
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    • 제16권6호
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    • pp.109-121
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    • 2015
  • 본 질적연구의 목적은 이머징 소셜 네트워크에 익숙한 밀레니얼스 세대 소비자들의 소셜 네트워크 기반 공유경제 서비스를 대하는 소비자 행동학적 동향, 사이코그래픽적 특성, 다양한 인지적 유형이 어떠한지 탐색하고 발견하는 것이다. 이를 위해, 본 연구는 Q방법론을 적용하여 최신 기술의 ICT 장비, 디바이스 또는 사회 문화적 웹서비스나 네트워킹을 능숙하게 다루는 젊은 밀레니얼 소비자들을 해석적 관점에서 4가지 차별화 된 유형의 이론적 정의를 제시한다. 최근 국내 산학 분야에서 모두 창조경제 정책에 힘입어 공유경제 서비스의 영향력이 증가하고 있지만, 아직 공유경제를 주제로 한 기존 연구들이 본격화 된 것은 그리 오래되지 않았다. 본 연구는 개인의 내재적 관심, 선호, 태도, 의견 등을 포함하는 일명 스키마타(Schemata)라고 불리는 응답자의 사고 구조의 독특한 사이코그래픽적 특성을 발견하는데 초점을 둔다. Q방법론의 연구 절차에 따라, Q모집단과의 인터뷰 및 여러 문헌들의 메타 스터디를 통해 수집한 180개의 진술문으로부터 축약한 최종 40개의 Q샘플(진술문)을 35명의 밀레니얼스 세대(P표본) 응답자이 Q소팅 하여 등급화 하였다. 마지막으로, QUANL PC 분석프로그램을 활용하여 소셜 네트워크 기반 공유경제 서비스에 대한 젊은 층 소비자들의 4가지 시장 세분화를 수행하였다. 도출된 유형들은 제1유형 'Early majority', 제2유형 'Laggard', 제3유형 'Opinion leader', 제4유형 'Late majority' 라고 명명하였다. 본 연구의 결과는 향후 밀레니얼스 신세대 소비자의 행동 및 심리적 특성, 시장 세분화를 깊이 있게 탐구하려는 질적 관점의 후속 연구들의 기초 연구로 활용될 수 있을 것이다.

재생 PET섬유가 혼입된 황토 콘크리트 보의 휨 거동 (Flexural Behavior of Hwangtoh Concrete Beams with Recycled PET Fiber)

  • 김성배;남진원;이나현;김장호;최홍식
    • 콘크리트학회논문집
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    • 제20권5호
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    • pp.619-626
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    • 2008
  • 환경문제에 대한 높은 관심으로 친환경 콘크리트의 개발을 위해 많은 연구가 수행되어지고 있으며, 특히 콘크리트 배합 시 시멘트 사용량을 줄이기 위한 노력이 계속되고 있다. 시멘트 사용량을 줄이기 위한 방법으로 고로슬래그, 플라이애쉬, 메타카올린 등 포졸란반응재료들이 혼화재료로 많이 사용되고 있다. 우리나라 전역에 널리 매장되어 있는 황토는 친환경 재료로서 황토를 활성화시킨 활성황토는 포졸란반응을 하는 메타카올린계의 일종으로 콘크리트의 혼화재료로 활용성이 증가하고 있다. 또한 재생 PET섬유는 폐 PET병을 재활용하여 만든 친환경재료로서 콘크리트에 혼입되어 미세균열을 제어하는 역할을 한다. 하지만 보강섬유를 혼입한 콘크리트에 대한 연구는 아직도 미비한 실정이고 활성황토를 혼화재로 사용한 철근 황토 콘크리트의 경우 활성황토 혼화재의 포졸란반응과 보강섬유의 보강 효과가 복합적으로 나타날 것으로 판단된다. 따라서 본 연구에서는 에너지 절약 차원에서의 친환경 재료인 활성황토와 재생 PET 섬유를 혼입한 철근콘크리트 보의 거동 특성을 확인하기 위하여 재생 PET섬유를 혼입한 철근 황토콘크리트 보 시험체를 제작하여 휨 거동을 수행하였다.

체계적 문헌 고찰과 델파이 기법을 활용한 위암의 한약 치료에 관한 한의표준임상진료 지침 개발 (Development of a Guidelines of the Herbal Medicine Treatment for Gastric Cancer on the Use of Systemic Review and Delphi Technique)

  • 송시연;반경태;하수정;박소정;이연월;조종관;조성훈;유화승
    • 대한암한의학회지
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    • 제23권1호
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    • pp.1-14
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    • 2018
  • Objectives: This study was conducted towards developing guidelines of herbal medicine treatment for gastric cancer. Methods: We performed a systematic review and meta-analysis designed to investigate the efficacy of herbal medicine treatment for gastric cancer on four cancer questions; survival rate, metastasis, immune function, and quality of life. Based on the findings, we utilized a two-round delphi process with panel of 22 experts for their level of agreement. Results: Combined therapy group, herbal medicine treated with chemotherapy, was significantly higher in the 1-year survival rate (RR=1.27, 95% CI: 1.14 to 1.40, P=0.005, $I^2=71%$) and 3-years survival rate (RR=1.41, 95% CI: 1.16 to 1.71, P=0.91, $I^2=0%$) than chemotherapy group. The suppression of metastasis was higher in the combined therapy group (RR=0.62, 95% CI: 0.45 to 0.84, P=0.09, $I^2=54%$). The immunology function was higher in the combined therapy group compared with the chemotherapy group (MD=16.43, 95% CI: 13.25 to 29.61, P<0.001, $I^2=99%$). The quality of life score was higher in the combined therapy group compared with the chemotherapy group (RR=1.55, 95% CI: 1.21 to 2.00, P<0.66, $I^2=0%$). Conclusions: Among the Randomized controlled trials (RCT) included, the levels of survival rates, suppression of metastasis, immune function, and quality of life of the group treated with chemotherapy were lower compared to those treated with herbal medicine in addition to chemotherapy.

Effectiveness of Education Interventions for the Management of Cancer Pain: A Systematic Review

  • Lee, Yoon Jae;Hyun, Min Kyung;Jung, Yea Ji;Kang, Min Joo;Keam, Bhumsuk;Go, Su Jin
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권12호
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    • pp.4787-4793
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    • 2014
  • Background: Many cancer patients experience poor pain control due to various factors, including misconceptions regarding the use of opioid analgesics. For management of cancer pain, interventions involving education of both patients and physicians have been attempted. Objectives: This review aimed to assess the current evidence of the benefits of education for the management of cancer pain. Methods: We searched the Medline, EMBASE, Cochrane library, and major Korean databases to identify relevant studies. We included most study designs, but excluded case series. The primary outcomes were pain intensity and quality of life (QoL). Two reviewers assessed the risk of bias using the Cochrane's tool for RCT and Risk of Bias Assessment tool for Non-randomized Studies (RoBANS) for non-randomized studies, independently. Results: After extensive searches, 3,324 publications were screened, and 32 studies were selected. The education interventions used in the included studies included a wide variety of education methods, but the most common method was a booklet produced for patients. Regardless of the education method used, the results of the meta-analysis were as follows. The SMDs of the most severe, average, and current pain in the RCTs were significant. The SMD of worst, average, and current pain were -0.34 (-0.55, -0.13), -0.40 (-0.64, -0.15), and -0.79 (-1.35, -0.23). In the non-randomized studies, the effects on average pain were significant, but those on worst and current pain were not. Conclusions: Education intervention reduced the pain of cancer patients. Therefore, patient education could be considered to be an effective method of cancer pain management. However, our data should be interpreted with caution, and studies using standardized protocols are needed to confirm these observations.

Association Between Gestational Diabetes Mellitus and Subsequent Risk of Cancer: a Systematic Review of Epidemiological Studies

  • Tong, Gui-Xian;Cheng, Jing;Chai, Jing;Geng, Qing-Qing;Chen, Peng-Lai;Shen, Xin-Rong;Liang, Han;Wang, De-Bin
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권10호
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    • pp.4265-4269
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    • 2014
  • Purpose: This study aimed at summarizing epidemiological evidence of the association between gestational diabetes mellitus (GDM) and subsequent risk of cancer. Materials and Methods: We searched Medline, Embase, Cancer Lit and CINAHL for epidemiological studies published by February 1, 2014 examining the risk of cancer in patients with history of GDM using highly inclusive algorithms. Information about first author, year of publication, country of study, study design, cancer sites, sample sizes, attained age of subjects and methods used for determining GDM status were extracted by two researchers and Stata version 11.0 was used to perform the meta-analysis and estimate the pooled effects. Results: A total of 9 articles documented 5 cohort and 4 case-control studies containing 10,630 cancer cases and 14,608 women with a history of GDM were included in this review. Taken together, the pooled odds ratio (OR) between GDM and breast cancer risk was 1.01 (0.87-1.17); yet the same pooled ORs of case-control and cohort studies were 0.87 (0.71-1.06) and 1.25 (1.00-1.56) respectively. There are indications that GDM is strongly associated with higher risk of pancreatic cancer (HR=8.68) and hematologic malignancies (HR=4.53), but no relationships were detected between GDM and other types of cancer. Conclusions: Although GDM increases the risk of certain types of cancer, these results should be interpreted with caution becuase of some methodological flaws. The issue merits added investigation and coordinated efforts between researchers, antenatal clinics and cancer treatment and registration agencies to help attain better understanding.

일 간호대학 박사학위논문의 분석을 통한 간호학 연구의 경향 (Trends of Doctoral Dissertations of One College of Nursing in Korea)

  • 최명애;홍경자;한경자;박영숙;박성애;하양숙;김금순;윤순녕;송미순;이명선;이인숙;박현애;최스미;정재원;박연환;장희경
    • 한국간호교육학회지
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    • 제15권1호
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    • pp.32-43
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    • 2009
  • Purpose: The purpose of this study was to identify the trend of nursing research by analyzing the doctoral dissertations in one college of nursing in Korea. Method: The areas of research, the methodological characteristics, and theories used in the research were explored in all doctoral dissertations (n=120) published from 1989 to 2006. Result: Mainly "Nursing" has been studied (44.9%) among four meta-paradigms of nursing science. The "client" domain (46.7%) and the "practice" domain (41.7%) were most frequently studied in type of nursing knowledge. The main purpose of the thesis was to develop nursing interventions and examine the effectiveness of the practice (40.8%) in quantitative research. Almost all (94.7%) of the qualitative dissertation studies were to explore phenomena in the nursing field. Almost half of the dissertations (43.9%) were an experimental design, 34.7% were a model construction, and 15.8% were a qualitative design. The majority of dissertations (83.3%) were to apply the specific theory and almost half (43.8%) studied borrowed theories from other fields. Conclusion: It is necessary to develop more rigorous and various research designs such a longitudinal design, or randomized controlled trial and this will lead to expanding the body of nursing knowledge.

호텔.외식조리 관련학과 학생들의 학습동기 및 자기조절학습능력에 관한 연구 - 대구.경북 지역 전문대 학생을 중심으로 - (A Study on Learning Motivation and Self-regulated Learning of Students in Hotel and Food Service Related Departments - Focused on College Students in the Daegu.Gyeongbuk Areas -)

  • 김기진;김향희;정외숙
    • 한국조리학회지
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    • 제16권3호
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    • pp.130-146
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    • 2010
  • 본 연구는 전문대 호텔 외식조리 관련학과 학생들의 일반적 특성에 따른 학습동기와 자기조절학습능력의 차이를 알아보고, 학습동기와 자기조절학습능력의 상관관계를 알아보고자 하였다. 조사는 대구지역의 3개 전문대 호텔 외식조리 관련학과 학생 300명을 대상으로 실시하였으며, 267부를 최종분석에 사용하였다. 먼저 학습동기에 대해 설펴보면, '졸업 후 취업'이라는 동기가 강한 학생은 20~24세로 나타났고, '학습의 기쁨'에 대한 동기는 연령이 높을수록 강해지는 것으로 나타났다. 아울러 '졸업 후 취업', '대학생활의 즐거움'의 동기가 높은 학생이 낮은 학생보다 자격증을 더 많이 취득한 것으로 나타났다. 자기조절 학습능력은 대체로 여학생이 남학생보다 높고, 학년과 연령이 높을수록 더 높게 나타났으며, 현장 실습 경험이 있는 학생이 없는 학생보다 높은 것으로 나타났다. 아울러 '인지전략', '메타인지 전략', '성취가치'의 수준이 높은 학생이 낮은 학생보다 취득한 자격증이 더 많은 것으로 나타났다. 학습동기와 자기조절학습능력의 상관관계는 학습동기 중 '무동기'를 제외하고는 긍정적인 상관관계를 보였다. '무동기'는 자기조절학습능력의 모든 요인과 부정적인 상관관계가 나타났다.

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메타인지 전략 학습을 통한 수학적 사고력 신장 방안 연구 (Metacognitive Learning Methods to Improve Mathematical Thinking)

  • 박혜연;정순모;김응환
    • 한국학교수학회논문집
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    • 제17권4호
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    • pp.717-746
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    • 2014
  • 21세기 지식 기반 사회에 적합한 인재는 자기주도적으로 지적 가치를 창출할 수 있는 자율적이고 창의적인 사고력을 갖춘 사람으로, 수학교육 현장에서는 학생들의 창의사고력이 강조되고 있다. 이러한 창의사고력은 자신의 사고과정을 모니터하고 조절 통제하는 메타인지능력과 밀접한 관련이 있다. 이에 본고에서는 메타인지와 관련된 여러 연구결과들의 통합을 통해 '메타인지능력과 수학적 사고력과의 상관관계, 메타인지 전략을 활용한 교수 학습 방법 및 그 효과, 메타인지 능력 향상을 통한 수학적 사고력 신장 방안'을 고찰하고자 하였다.

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견수증후군에 대한 침치료 임상연구의 동향 고찰 (Review of Clinical Studies on Acupuncture for Shoulder-hand syndrome)

  • 이은지;조희근;김신애;권민구;현민경;윤태경;김선욱;정주용;양태준
    • Journal of Acupuncture Research
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    • 제33권4호
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    • pp.121-136
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    • 2016
  • Objectives : Despite various treatment for Shoulder-hand syndrome being presented, only a few studies that examine the direct efficacy of acupuncture exist. The aim of this study is to establish a base for further research by reviewing studies on acupuncture treatment for Shoulder-hand syndrome. Methods : Clinical studies involving the effects of acupuncture for Shoulder-hand syndrome, published on July 19th 2016, were obtained from Pubmed, RISS, OASIS, the Journal of Korean Acupuncture and Moxibustion, the Journal of Korean institute of pharmacopuncture, the Korean Journal of Acupuncture, NDSL, Korean Traditional Knowledge Portal, DBpia, and KISS. Selected studies were evaluated by the Jadad scale and FEAS. Results : Among a total of two hundred and fifteen articles, thirteen articles (RCT 9, SR 1, Meta analysis 1, CCT 1 article, Case series 1) that meet the criteria were selected. Among 13 articles, one article was published in Korea. And apart from this one article, twelve studies were published in China. All studies reported that the experimental group treated by acupuncture had significantly better effects compared to the control group. However, the overall quality assessment of the studies is low. Conclusion : Despite several limitations, various studies to prove limited yet effective acupuncture treatment on Shoulder-hand syndrome provides much significance. Subsequent studies conducted by the complementary systematic review of the studies and well-designed clinical trials using the methodological quality will be needed to more firmly validate the therapeutic effect of acupuncture on Shoulder-hand syndrome.

A Systematic Review of Acupuncture for Chronic Fatigue Syndrome

  • Kim, Hong Guk;Ryoo, Dek Woo;Jeong, Seong Mok;Kim, Sung Jin;Baek, Seung Won;Lee, Chang Hee;Yoon, Jin Young;Goo, Bon Hyuk;Kim, Min Jeong;Park, Yeon Cheol;Seo, Byung Kwan;Baek, Yong Hyeon;Nam, Sang Soo;Kim, Yong Suk
    • Journal of Acupuncture Research
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    • 제34권2호
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    • pp.93-112
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    • 2017
  • Objectives : To evaluate and summarize the efficacy and safety of acupuncture treatment (AT) in chronic fatigue syndrome (CFS). Methods : Fifteen databases (Pubmed, Cochrane, EMBASE, AMED, CINAHL, CNKI, Wanfang, and eight Korean databases) were searched up to September 2016. Only trials in which acupuncture was the sole treatment were included. Fatigue was used as the primary outcome measure, while the quality of life, pain, mood disorders, and adverse events were used as secondary outcome measures. We adopted three classifications: AT vs Sham AT, AT vs Wait-list, AT vs Western medication. The Cochrane risk of bias tool was used to assess the methodological quality. Results : A total of 11 randomized controlled trials involving 869 participants were identified. In comparison with Sham AT, AT significantly alleviated fatigue and pain, but no conclusions about the quality of life and mood disorders could be drawn. In the Wait-list group and Western medication groups, patients with CFS might feel less fatigued following acupuncture treatment, but the evidence was insufficient due to lack of study. Nine of 11 RCTs (81.8%) reported adverse events and there were two cases of mild subcutaneous hemorrhage, but no serious adverse cases. Conclusion : This review found evidence that patients with CFS may generally benefit from alleviation of symptoms by acupuncture treatment, and there is no evidence of worsening symptoms or causing of serious adverse events. A positive effect on fatigue and pain was observed, but no conclusion for improving quality of life and mood disorders.