• Title/Summary/Keyword: Effects of Team

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How Does the Frequency of Instructor Feedback Affect Perceived Loafing and Team Performance in Team Project-Based Learning? A Moderated Mediation Approach

  • Ji Won YOU
    • Educational Technology International
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    • v.24 no.2
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    • pp.237-262
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    • 2023
  • This study focuses on the instructor's role in student-centered learning and aims to test the effects and moderating role of instructor feedback on perceived loafing in team project-based learning. A conditional effect model including team efficacy, perceived loafing, instructor feedback, and team performance was proposed. Data were collected from students who registered for team project-based learning courses at a university in South Korea. A total of 420 cases were subjected to moderated mediation analysis. The results demonstrated that instructor feedback was negatively related to perceived loafing and moderated the relationship between team efficacy and perceived loafing. Furthermore, instructor feedback moderated the relationship between perceived loafing and team performance. In particular, even when perceived loafing was high, students who received frequent instructor feedback were found to significantly reduce the damage to team performance. Based on these findings, the importance of instructors' facilitation in team project-based learning is discussed.

Effects of Blended-TBL on Students' Self-Regulated Learning

  • PARK, Eunsook
    • Educational Technology International
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    • v.10 no.1
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    • pp.137-155
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    • 2009
  • The purpose of this research is to develop Blended-TBL(Team Based Learning) model that emphasizes the active participation and teamwork of students in on-off blended learning environment, and apply it into the college course and explore whether self-regulated learning between one group pretest and posttest is different. For this, this research investigated the concept and the characteristics of Team Based Learning, and developed the Blended-TBL Model to apply it into the college course, and finally prove effects of Blended-TBL model on self-regulated learning using Motivated Strategies for Learning Questionnaire (MSLQ). The participants in this study were 57 college students. They participated in on-off blended-TBL course for 15weeks. Participants followed the content grounded and the problem solving steps in collaborative team-based learning. This research practiced a quantitative research to find out the statistical difference of the self-regulated learning between pretest and posttest using SPSS. The result revealed that Blended-TBL students improved self-regulated learning including motivation, cognitive, metacognitive, and resource management. Based on this result, this research discussed the effects of Blended-TBL on Self-Regulated Learning and suggested the further study.

Effects of deoxynivalenol- and zearalenone-contaminated feed on the gene expression profiles in the kidneys of piglets

  • Reddy, Kondreddy Eswar;Lee, Woong;Jeong, Jin young;Lee, Yookyung;Lee, Hyun-Jeong;Kim, Min Seok;Kim, Dong-Woon;Yu, Dongjo;Cho, Ara;Oh, Young Kyoon;Lee, Sung Dae
    • Asian-Australasian Journal of Animal Sciences
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    • v.31 no.1
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    • pp.138-148
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    • 2018
  • Objective: Fusarium mycotoxins deoxynivalenol (DON) and zearalenone (ZEN), common contaminants in the feed of farm animals, cause immune function impairment and organ inflammation. Consequently, the main objective of this study was to elucidate DON and ZEN effects on the mRNA expression of pro-inflammatory cytokines and other immune related genes in the kidneys of piglets. Methods: Fifteen 6-week-old piglets were randomly assigned to three dietary treatments for 4 weeks: control diet, and diets contaminated with either 8 mg DON/kg feed or 0.8 mg ZEN/kg feed. Kidney samples were collected after treatment, and RNA-seq was used to investigate the effects on immune-related genes and gene networks. Results: A total of 186 differentially expressed genes (DEGs) were screened (120 upregulated and 66 downregulated). Gene ontology analysis revealed that the immune response, and cellular and metabolic processes were significantly controlled by these DEGs. The inflammatory stimulation might be an effect of the following enriched Kyoto encyclopedia of genes and genomes pathway analysis found related to immune and disease responses: cytokine-cytokine receptor interaction, chemokine signaling pathway, toll-like receptor signaling pathway, systemic lupus erythematosus (SLE), tuberculosis, Epstein-Barr virus infection, and chemical carcinogenesis. The effects of DON and ZEN on genome-wide expression were assessed, and it was found that the DEGs associated with inflammatory cytokines (interleukin 10 receptor, beta, chemokine [C-X-C motif] ligand 9, CXCL10, chemokine [C-C motif] ligand 4), proliferation (insulin like growth factor binding protein 4, IgG heavy chain, receptor-type tyrosine-protein phosphatase C, cytochrome P450 1A1, ATP-binding cassette sub-family 8), and other immune response networks (lysozyme, complement component 4 binding protein alpha, oligoadenylate synthetase 2, signaling lymphocytic activation molecule-9, ${\alpha}$-aminoadipic semialdehyde dehydrogenase, Ig lambda chain c region, pyruvate dehydrogenase kinase, isozyme 4, carboxylesterase 1), were suppressed by DON and ZEN. Conclusion: In summary, our results indicate that high concentrations of DON and ZEN suppress the inflammatory response in kidneys, leading to potential effects on immune homeostasis.

A Study on the Relationship among Communication Competency, Social Network Centralities, Discussion Performance, and Online Boarding Activity in the Team Based Learning (팀 기반 토의 수업에서 의사소통능력, 사회연결망 중심도, 토론성과 및 온라인 게시활동의 관계 연구)

  • Heo, Gyun
    • Journal of Fisheries and Marine Sciences Education
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    • v.27 no.1
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    • pp.108-114
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    • 2015
  • The purpose of this study is to find the relationships among communication competency, social network centrality(trust centrality and knowledge sharing centrality), discussion performance, and online boarding activity in the team based learning situation. For investigating this topic, 44 students are participated in the classes of educational technology. In order to find out the relationships among communication competency, social network centrality, discussion performance, and online boarding activity, compared t-test and path analysis are used. Followings are the results of the research: (a) Communication competency is improved significantly after team based learning. (b) Trust centrality effects significantly on the knowledge sharing centrality. (c) Knowledge sharing effects significantly on discussion performance. (d) Trust centrality effects on the online boarding activity in the team based learning.

Effects of Team-based Learning using Concept Mapping on Critical Thinking Disposition and Metacognition of Nursing Students (개념지도를 활용한 팀 기반 학습이 간호대학생의 비판적 사고성향 및 메타인지에 미치는 영향)

  • Jeong, Yeo Won;Min, Hae Young
    • The Journal of Korean Academic Society of Nursing Education
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    • v.25 no.3
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    • pp.277-288
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    • 2019
  • Purpose: This study aimed to examine the effects of team-based learning using concept mapping on critical thinking disposition and metacognition on college of nursing students. Methods: A non-equivalent control group pretest-posttest design was used. The experimental group was provided team-based learning using concept mapping. The control group was provided team-based learning. A total of 77 nursing students participated. Results: The experimental group increased significantly in critical thinking, however, there were no significant differences in critical thinking or metacognition between the two groups. The four essential themes extracted were as follows: (1) Expanding the scope of thinking; (2) Strengthening learning competency; (3) Enhancing communication skill; and (4) Burden of new learning method. Conclusion: The findings indicate that team-based learning using concept maps may be an effective teaching-learning method for nursing students.

The Effects of Signal Delay on Scanning Velocity Modulation in CRT

  • Choo, Seong-Hun;Choi, Jong-Hoon;Bae, Min-Cheol
    • 한국정보디스플레이학회:학술대회논문집
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    • 2003.07a
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    • pp.1160-1163
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    • 2003
  • The effects of time delay between a video signal and a current signal applied to velocity modulation coil on free-spot movement and beam size were measured and analyzed quantitatively in this study. The result shows that it is the most important to avoid signal mismatching in order to achieve the optimal velocity modulation performance.

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Gene Expression Analysis of Hepatic Response Induced by Gentamicin in Mice

  • Oh, Jung-Hwa;Park, Han-Jin;Hwang, Ji-Yoon;Jeong, Sun-Young;Lim, Jung-Sun;Kim, Yong-Bum;Yoon, Seok-Joo
    • Molecular & Cellular Toxicology
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    • v.3 no.1
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    • pp.60-67
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    • 2007
  • Gentamicin is a broad-spectrum aminoglycoside antibiotic used in the treatment of bacterial infection. Although side effects of gentamicin such as nephrotoxicity and ototoxicity have been investigated, the information on the hepatic effects of gentamicin is still limited. In the present study, gene expression profiles were analyzed in the liver of gentamicin treated mice using Affymetrix GeneChip$^{(R)}$ Mouse Expression 430A 2.0 Array. Totally, 400 genes were identified as being either up- or down-regulated over 1.5-fold changes (P<0.01) in the liver of gentamicin treated mice. Among these deregulated genes, 16 up-regulated genes mainly involved in transport (Kif5b, Pex14, Rab14, Clcn3, and Necap1) and 20 down-regulated genes involved in lipid and other metabolisms (Hdlbp, Gm2a, Uroc1, and Dak) were selected using k-means clustering algorithm. The functional classification of differentially expressed genes represented that several stress-related genes were regulated in the liver by gentamicin treatment. This data may contribute in understanding the molecular mechanism in the liver of gentamicin treated mice.