• Title/Summary/Keyword: Meta study

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Meta-Analysis on Factors Related to Children's Basic Psychological Needs (아동의 기본심리욕구와 관련 요인에 대한 메타분석)

  • Chae, Eun Young;Cheong, Moon Joo
    • Korean Journal of Child Studies
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    • v.37 no.4
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    • pp.83-99
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    • 2016
  • Objective: The purpose of this study was to analyze correlation effect size between Basic Psychological Needs (BPN) and factors affecting BPN. Methods: This research was reviewed and synthesized systematically by meta-analyse. Fifty-eight published studies between 2008 and 2016 were sampled and the effect sizes were acquired. Results: The major findings were as follows. In general, medium correlation effect sizes were found. Competency among sub-factors of BPN showed highest effects. Parental factor was more related to BPN than school and individual factors. Parenting behavior and family psychological backgrounds were the most crucial factors in the parental factors. School adjustment was the most critical factor in the school factors. In school grade, the elementary school was more related to BPN than junior high school and high school. Conclusion: Based on these results, we suggest a number of components for parent-education programs, and information for future research.

A Meta-analysis of the Gender Differences and Variables Related to Overt and Relational Aggression in Children and Adolescents (아동과 청소년의 외현적, 관계적 공격성의 성별 차이 및 관련변인에 대한 메타분석)

  • Seo, Mi-Jung
    • Korean Journal of Child Studies
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    • v.32 no.3
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    • pp.143-162
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    • 2011
  • This study presents a meta-anlalytic review of 119 studies, published between 1990 and 2009, of gender differences and variables associated with overt and relational aggression during childhood and adolescence. Gender differences in overt aggression were found to be significantly higher in boys than girls, but significant gender differences in relational aggression were not found. Gender differences of only overt aggression are moderated by age and the reporter type. In general, both overt and relational aggression are more strongly related to maladjustment than adjustment. In addition to this, overt and relational aggression has both common and differential associations with relative levels of maladjustment and adjustment. The moderation of these effect sizes of both overt and relational aggression by age and the reporter type was found.

The Effects of Panax Ginseng on Streptozotocin-Induced Diabetic Rats: Meta Analysis

  • Kook, Se-Jeong;Kim, Gun-Hee;Choi, Ki-Heon
    • The Korean Journal of Applied Statistics
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    • v.22 no.1
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    • pp.107-114
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    • 2009
  • The present study was carried out to summarize the effect of ginseng in the experimental diabetic rats by meta-analysis related studies. The association measure to test effect of ginseng was the mean difference(MD) between group of rats induced streptozotocin(STZ) and group of rats induced STZ treated with ginseng about the considered effect factors. The level of FI, glucose and TG were significantly reduced(< 0.01), and the level of glycogen was significantly increased by treatment with ginseng (< 0.01) After checking the indication of publication bias for the combined MDs by using the funnel plots, the anti-diabetic effects of ginseng is clearly presented in FI, glucose, TG and glycogen (< 0.05).

Predicting Audit Reports Using Meta-Heuristic Algorithms

  • Valipour, Hashem;Salehi, Fatemeh;Bahrami, Mostafa
    • Journal of Distribution Science
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    • v.11 no.6
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    • pp.13-19
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    • 2013
  • Purpose - This study aims to predict the audit reports of listed companies on the Tehran Stock Exchange by using meta-heuristic algorithms. Research design, data, methodology - This applied research aims to predict auditors reports' using meta-heuristic methods (i.e., neural networks, the ANFIS, and a genetic algorithm). The sample includes all firms listed on the Tehran Stock Exchange. The research covers the seven years between 2005 and 2011. Results - The results show that the ANFIS model using fuzzy clustering and a least-squares back propagation algorithm has the best performance among the tested models, with an error rate of 4% for incorrect predictions and 96% for correct predictions. Conclusion - A decision tree was used with ten independent variables and one dependent variable the less important variables were removed, leaving only those variables with the greatest effect on auditor opinion (i.e., net-profit-to-sales ratio, current ratio, quick ratio, inventory turnover, collection period, and debt coverage ratio).

Design of steel frames by an enhanced moth-flame optimization algorithm

  • Gholizadeh, Saeed;Davoudi, Hamed;Fattahi, Fayegh
    • Steel and Composite Structures
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    • v.24 no.1
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    • pp.129-140
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    • 2017
  • Structural optimization is one of the popular and active research areas in the field of structural engineering. In the present study, the newly developed moth-flame optimization (MFO) algorithm and its enhanced version termed as enhanced moth-flame optimization (EMFO) are employed to implement the optimization process of planar and 3D steel frame structures with discrete design variables. The main inspiration of this optimizer is the navigation method of moths in nature called transverse orientation. A number of benchmark steel frame optimization problems are solved by the MFO and EMFO algorithms and the results are compared with those of other meta-heuristics. The obtained numerical results indicate that the proposed EMFO algorithm possesses better computational performance compared with other existing meta-heuristics.

Study of Dyeing Properties by Swelling Agent on meta-aramid Fiber with Cationic Dyes (Swelling agent에 따른 메타계 아라미드 섬유의 Cationic dye 염색특성)

  • Kim, Eun-Mi;Park, Chung-Won;Choi, Jae-Hong
    • Textile Coloration and Finishing
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    • v.24 no.1
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    • pp.1-7
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    • 2012
  • Dyeing and fastness characteristics of 100% meta-aramid fiber were investigated with cationic dyes and swelling agents under various dyeing conditions such as dyeing temperature and pH of dye bath. Dye exhaustion started at around $80^{\circ}C$ and settled down at $130^{\circ}C$. Among swelling agents used, N-methyl formanilide showed comparatively higher K/S values comparing to 1-phenoxypropan-2-ol. Under weak acidic conditions in the range pH 5 to 7, the exhaustion of cationic dyes could be enhanced leading to higher adsorption and stability of colorimetric property. Wash and rubbing fastness were generally good but low light fastness found can be attributable to the poor photo-stability of the cationic dyes.

A Meta-Analysis of the Effects of Multi-Cultural Education Program in Korea (다문화가정과 일반가정 유아와 아동을 대상으로 한 다문화교육 프로그램의 효과에 관한 메타분석)

  • Choi, Hea Young
    • Journal of Family Resource Management and Policy Review
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    • v.19 no.3
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    • pp.1-16
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    • 2015
  • The purpose of this study was to synthesize the results of studies on the effects of multi-cultural education program for Korean children. Using the author's own selection criteria, 17 studies were finally selected and 31 effect sizes were calculated from these studies and used for meta analysis. The overall effect size for all studies on the random effect model was .802, and it was positive and high. Given the heterogeneity among the effect size, subgroup analysis was conducted. According to the analysis, effect sizes significantly differed depending on program goal, concerned multi-cultural higher than others. Result also showed that the high scored effect sizes were the general family, pre-school age children group, and the program were 11-20 children group in size, and 11~20 times in frequency of education.

Development of the inorganic which uses the Fly-ash and Meta-kaolin (플라이애쉬와 메타카올린을 사용한 무기결합재의 개발)

  • Jung, Suk-Jo;Chu, Yong-Sik;Lee, Jong-Kyu
    • Proceedings of the Korea Concrete Institute Conference
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    • 2005.05b
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    • pp.433-436
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    • 2005
  • The Fly-ash makes an Alumino-silicate gel when it mixes an alkali or a silicate solution. This Alumino-silicate gel is produced to the activation of an alkali silicate. And this act to the binder and makes a combine of particles. This study involved mechanical strengths of an Alumino-silicate Gel based the Fly-ash with an alkali solution. NaOH, KOH were utilized to an alkali solution. The alkali solution concentration was varied from 6 to 12M and the some added also the Meta-kaolin, Waterglass so that it made high the mechanical performance. Based on the experimental result, the compressive strengths increased as the quantity of the Meta-kaolin increased. And a mechanical strengths appeared according to the concentration of an alkali solution so that it was different. XRD, FT-IR have been used to characterize mechanical performance.

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Design and Implementation of Medical Education System using Mesh-Up Meta-Search Program (메쉬업을 통한 의학교육 메타검색시스템의 설계 및 구현)

  • Jung, Yong-Gyu;Choi, Jae-Kwan;Choi, Young-Jin
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.11 no.4
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    • pp.119-123
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    • 2011
  • In recent years, several technologies have brought many changes in the field of education. Nonetheless, it is difficult to get freely medical and professional knowledge in the educational environment. In this paper, we study a free medical education system for medical education through service to the Mashup offers a meta-search system. Received permission to use the system API to retrieve the content API, data retrieval systems and video content via the API to design a system, based on this medical education, meta-search system is implemented.

A Meta-Analysis on the Effectiveness of Project Approach in Early Childhood Education (프로젝트 접근법의 효과에 대한 메타분석)

  • Han, Kyung-Hee;Chung, Chung-Hee;Chung, Han-Chul
    • Korean Journal of Child Studies
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    • v.25 no.6
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    • pp.131-152
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    • 2004
  • This study used meta-analysis to synthesize the effectiveness of the project approach. After reviewing 51 studies, we analyzed the effect size of 119 articles published between 1990 and 2002 using SAS 8.2 program. The grand average of the project approach effectiveness was 1.03. This implies that the experimental group that employing the project approach is more effective than control group by the 35 percentile. We also found that the project approach is more effective for preschool children group (1.21, 89%) than for the elementary school children group (0.88, 81%). Specific variables regarding the effectiveness of the project approach were analyzed and its consequences were discussed.

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