• 제목/요약/키워드: inconclusive evidence)

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The Effects of Policy Funds on the Investment and Management Stabilization Financing of Small- and Medium-sized Enterprises

  • Jinhwa Chung;Bohyun Kim;Seongman Moon
    • East Asian Economic Review
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    • 제27권4호
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    • pp.347-376
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    • 2023
  • This study empirically examines the impacts of policy funds from three different aspects using data on Daegu city's local government loans. First, we estimate the influence of policy funds on mitigating financial constraints affecting the investment decisions of Small- and Medium-sized Enterprises (SMEs), yielding inconclusive results indicating no significant discernible effects of policy funds. Second, we scrutinize the ramifications of policy funds on enterprise's management stability, revealing that these funds contribute to stabilizing the operations of small-scale enterprises. Third, we explore whether policy funds engender an unintended consequence of bolstering distressed enterprises, presenting empirical evidence that suggests a delayed exit of such enterprises.

학생들의 사전 지식이 밀도과제의 과학적 추론에 미치는 영향 (Effects of Students' Prior Knowledge on Scientific Reasoning in Density)

  • 양일호;권용주;김영신;장명덕;정진우;박국태
    • 한국과학교육학회지
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    • 제22권2호
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    • pp.314-335
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    • 2002
  • The purpose of this study was to investigate the effects of students' prior knowledge on scientific reasoning process performing a task of controlling variables with computer simulation and to identify a number of problems that students encounter in scientific discovery. Subjects for this study included 60 Korean students: 27 fifth-grade students from an elementary school; 33 seventh-grade students from a middle school. The sinking objects task involving multivariable causal inference was used. The task was presented as computer simulation. The fifth and seventh-grade students participated individually. A subject was interviewed individually while the investigating a scientific reasoning task. Interviews were videotaped for subsequent analysis. The results of this study indicated that students' prior knowledge had a strong effect on students' experimental intent; the majority of participants focused largely on demonstrating their prior knowledge or their current hypothesis. In addition, studnets' theories that were part of one's prior knowledge had significant impact on formulating hypotheses, testing hypothesis, evaluating evidence, and revising hypothesis. This study suggested that students' performance was characterized by tendencies to generate uninformative experiments, to make conclusion based on inconclusive or insufficient evidence, to ignore, reject, or reinterpret data inconsistent with their prior knowledge, to focus on causal factors and ignore noncausal factors, to have difficulty disconfirming prior knowledge, to have confirmation bias and inference bias (anchoring bias).

화장품 임상시험 프로토콜 개발을 위한 체계적 문헌 고찰 (A Systematic review for the development of cosmetic clinical trial protocol)

  • 조가원;황충연;홍석훈;김남권
    • 한방안이비인후피부과학회지
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    • 제26권1호
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    • pp.104-117
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    • 2013
  • Objective : The aim of this review is to development of clinical trial protocol for against cosmetics as a treatment of dry skin condition. Methods : We searched the literature from 2002 through April 2012 using 5 databases. We included randomized controlled trials(RCTs) in which human participants with dry skin condition as chief complaint were treated with cosmetics. The methodological quality of all RCTs was using the Jadad score. Results : Nine RCTs met the inclusion criteria. Cosmetic types included cream (7 trials), lotion (1 trial), oil (1 trial) and body wash (1 trial). The methodological quality of the trials was generally low (Jadad score: mean 1.78; range, 1 to 3). Conclusions : The evidence for cosmetics as an effective treatment for dry skin condition(xerosis) is currently scarce and of poor quality, and is therefore inconclusive. More rigorous studies are warranted.

Specific CCND1 G870A Alleles Associated with Breast Cancer Susceptibility: a Meta-analysis of 5,528 Cases and 5,353 Controls

  • Cui, Jing;Shen, Liang;Wang, Yu
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권10호
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    • pp.5023-5025
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    • 2012
  • Background: The Cyclin D1(CCND1) G870A polymorphism may be associated with breast cancer, but the evidence from individual studies is inconclusive. The aim of this study was to investigate the correlation between the CCND1 G870A polymorphism and breast cancer risk in a meta-analysis. Materials and Methods: We searched Pubmed and analysed 11 articles on 5,528 cases and 5,353 controls before February 1, 2012. Results: we found there are significant association for AA versus GG and AA versus GA/GG. No significant associations were found for GA versus GG, GA/AA versus GG. There are significant association for AA versus GG, and AA versus GA/GG in Caucasians. We didn't find any significant main effects for G870A polymorphism on breast cancer risk either in recessive or dominant models in Asians. Conclusion: This meta-analysis suggests that AA of the CCND1 G870A polymorphism is associated with breast cancer susceptibility.

Reproductive Risk Factors for Thyroid Cancer: A Prospective Cohort Study in Khon Kaen, Thailand

  • Sungwalee, Wararat;Vatanasapt, Patravoot;Kamsa-ard, Siriporn;Suwanrungruang, Krittika;Promthet, Supannee
    • Asian Pacific Journal of Cancer Prevention
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    • 제14권9호
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    • pp.5153-5155
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    • 2013
  • Background: Because of the gender disparity in the incidence of thyroid cancer, this study aimed to determine the association between reproductive factors and thyroid cancer. Methods: A total of 10,767 eligible women from the Khon Kaen Cohort, recruited and interviewed between 1990 and 2001, were followed up until 2011. The data were linked to the Khon Kaen Population-Based Cancer Registry to detect thyroid cancer cases. Results: There was 17 thyroid cancer cases detected, an incidence of 11.2 per 100,000 person-years, of which 70.6 % were papillary tumors. The incidence was apparently greater among those with an early age of menarche, nulligravida women, and oral contraceptive users. Conlusions: There was a trend for thyroid cancer to develop in relation to longer estrogen exposure. This evidence is inconclusive but warrants further investigation.

Rapidly Progressive Small Bowel Necrosis in a Previously Healthy Child without Proven Mechanical Obstruction

  • Kim, Hyun Hee;Kang, Hyungoo;Park, Chul Hee;Kwon, Yu Jin;Jung, Euna;Lim, Misun
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • 제22권3호
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    • pp.291-297
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    • 2019
  • Bowel ischemia is a life-threatening surgical emergency. We report a case of rapidly progressive bowel necrosis in a previously healthy child without proven mechanical small bowel obstruction. The definite diagnosis was established at the time of an exploratory operation. Of note, imaging studies and even a laparotomy did not reveal any evidence of acute appendicitis or mechanical obstruction such as intussusception or Meckel's diverticulum. During hospitalization, since we could not rule out surgical abdomen after inconclusive image findings, we closely followed the patient and repeated physical examinations carefully. Eventually surgical exploration was performed based on changes in clinical condition, which proved to be the right decision for the patient. We propose that in children with suspected strangulation of small bowel obstruction, especially when imaging findings do not provide a conclusive diagnosis, the timely exploratory surgical approach ought to be chosen based on carefully observed clinical findings and other evaluations.

What Drives Residents Low Carbon Transportation Commuting? Evidence from China

  • Li, Liang;Tan, Meixuen;Sun, Huaping;Sanitnuan, Nuttida
    • Asia Pacific Journal of Business Review
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    • 제6권1호
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    • pp.21-48
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    • 2021
  • Promoting low carbon transportation adoption is important for energy saving. Some prior studies have discussed on environmental values affect low carbon transportation commuting is inconclusive. This study has constructed the environmental values, utility value, and social influence-based low-carbon transportation adoption model through the theory of the technology acceptance model and VBN model and the IS success model. Through the SEM model and stepwise regression analysis, we have found that environmental values positively affect utility value, and utility value also positively affects the behavior adoption of low carbon transportation. The utility value as mediating effect in the relationship between environmental values and low carbon transportation commuting behavior. Besides, we also have found that social influence positively impacts the behavior adoption of low carbon transportation. It better enhances the level of household residents' environmental values and utility values, and social influence for promoting the adoption of low carbon transportation. This present research provides theoretical guidance and suggestions for promoting the development of low-carbon transportation innovation.

턱관절 장애에 대한 근에너지 기법의 효과: 체계적 문헌 고찰 및 메타분석 (Efficacy of Muscle Energy Technique for Temporomandibular Disorders: A Systematic Review and Meta-analysis)

  • 윤홍렬;변정원;김순중
    • 척추신경추나의학회지
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    • 제18권2호
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    • pp.31-42
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    • 2023
  • Objectives This study aimed to conduct a systematic review evaluating the effectiveness of muscle energy technique(MET) in temporomandibular joint disorders (TMD). Methods Searches were conducted in 11 electronic databases until October 2023. Randomized controlled trials(RCT) comparing the effect of MET for TMD were included. All studies were evaluated using the Cochrane Risk of Bias tool. Results Nine documents that fulfilled all the criteria were obtained for analysis. All studies showed some concerns in high risk of bias, but showed a significant improvement in pain and maximum mouth opening compared to baseline of MET or control group. MET was not better than extracorporeal shock wave therapy or myofascial release in some outcomes. Conclusions MET seems to be an effective treatment for TMD in some regards, however, can be considered as an adjunct therapy which has weak evidence. Further studies are required due to the inconclusive data and poor homogeneity found in this review.

협력은 항상 옳은가? 거래 의존성과 비선형 관계를 고려한 공급사슬 협력에 대한 재고찰 (Does it Always Pay to be Collaborative? Supply Chain Collaboration Revisited in the Consideration of Supplier-Buyer Dependence and Curvilinear Relationships)

  • 이수열
    • 한국경영과학회지
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    • 제40권3호
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    • pp.73-95
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    • 2015
  • Firms have reexamined and restructured their supply chain based on a long-term and partnership perspective as a firm's competitive advantage increasingly relies on its supply chain capability. A number of scholar works has provided evidence to support the positive effects of supply chain collaboration; however, the relationship between collaboration and performance is still inconclusive. This study refuses to have blinded faith on supply chain collaboration, but rather this paper suggests that the contribution of collaboration to supply chain performance improvement can be limited and vary along the contextual characteristics of a buyer-supplier relationship. Moreover, we argue that the relationship between supply chain collaboration and performance can be curvilinear. This paper provides and test hypotheses regarding the relationship between supply chain collaboration and performance. By using data of the Manufacturing Panel Survey (MPS), this study empirically validates the hypotheses. Overall, the results of the study support our hypotheses about a limited contribution of supply chain collaboration to manufacturing performance, which is opposite to a conventional expectation. Particularly, the effects of supply chain collaboration differ depending on the dimensions of performance such as customer satisfaction, quality, cost, delivery, and flexibility as well as the dependency in the buyer-supplier relationship. Moreover, the results of the study indicate that supply chain collaboration and performance may have curvilinear relationships in a certain context. Through a comprehensive model and empirical evidence, this study presents a better understanding of supply chain collaboration and provokes an open discussion about the effects of collaboration. This study also provides insightful implications for managers of buyers as well as suppliers who wish to foster stronger supply chain performance via a deep buyer-supplier relationship and collaboration.

Lack of Association between the COMT rs4680 Polymorphism and Ovarian Cancer Risk: Evidence from a Meta-analysis of 3,940 Individuals

  • Du, Jin-Ze;Dong, Yu-Ling;Wan, Guo-Xing;Tao, Lin;Lu, Li-Xia;Li, Feng;Pang, Li-Juan;Jia, Wei
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권18호
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    • pp.7941-7945
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    • 2014
  • Catechol-O-methyltransferase (COMT) is involved in estrogen metabolism and is vital to estrogen-induced carcinogenesis, including that of ovarian cancer. Although many recent epidemiologic studies have investigated associations between the COMT rs4680 polymorphism and ovarian cancer risk, the results remain inconclusive. We therefore performed a meta-analysis to derive a more precise estimate of associations. Systematic searches of the PubMed, Embase, Web of Science, Cochrane Library, Wanfang, China National Knowledge Infrastructure, and Chinese Biomedicine databases were undertaken to retrieve eligible studies. Odds ratios (ORs) with their corresponding 95% confidence intervals (CIs) were pooled to assess the strength of the association. In total, 8 case-control studies involving 1,293 cases and 2,647 controls were included in the meta-analysis. Overall, the results showed no evidence of significant association between the COMT rs4680 polymorphism and ovarian cancer risk in any of the assessed genetic models. Subgroup analyses by ethnicity also did not reveal any significant association in any genetic model (p>0.05). In conclusion, our findings suggest that the COMT rs4680 polymorphism may not contribute to the risk of ovarian cancer.