2,821 research outputs found
Examining the cross-level relationship between shared leadership and learning in teams: evidence from China
No full textThe current study extends the literature on shared leadership by exploring the questions of whether, how, and when shared leadership makes an impact on team and individual learning behaviors. Specifically, the current research proposed that shared leadership has a positive impact on both team and individual learning and this impact was realized through the mediating role of team psychological safety. Furthermore, the study introduces job variety as a potential moderator in the relationships between shared leadership on team and individual learning behaviors through team psychological safety, such that the indirect effects are more positive when team members perceived high job variety. Using 263 members from 50 teams in China, the hypotheses were largely supported. Theoretical contributions, practical implications and future research directions are discussed
Linking boundary spanning behavior to task performance The influence of group power distance
No full textDriven by fierce global competition, flatter organizational structures, and the growing complexity of tasks, boundary spanning behavior is increasingly emphasized theoretically and practically, especially for externally dependent work teams. The current study aims at answering the questions of whether, when, and how an individual’s boundary spanning behavior impacts his or her task performance within the team. We surveyed 272 employees from 57 new product development teams in China to explore boundary spanning behavior by individual team members. Results indicated that informal leader emergence mediated the relationship between an individual’s boundary spanning behavior and his or her performance within a team. Moreover, cultural value at the team level plays important role in the above relationship. Group power distance positively moderated the association between boundary spanning behavior and informal leader emergence. An overall mediated moderation model of the interaction between boundary spanning behavior and group power distance on task performance via informal leadership emergence was confirmed. The implications of the research are discussed
sj-tif-2-nnr-10.1177_15459683221095034 – Supplemental material for Effects of Repetitive Transcranial Magnetic Stimulation on Motor Symptoms in Parkinson’s Disease: A Meta-Analysis
No full textSupplemental material, sj-tif-2-nnr-10.1177_15459683221095034 for Effects of Repetitive Transcranial Magnetic Stimulation on Motor Symptoms in Parkinson’s Disease: A Meta-Analysis by Ruoyu Li, Yijing He, Wenting Qin, Zhuoyu Zhang, Junhui Su, Qiang Guan, Yuhui Chen and Lingjing Jin in Neurorehabilitation and Neural Repair</p
Data for: Economic Analysis and Control of a Grid-Connected PEM Fuel Cell in Distributed Generation
No full textThe codes are provided just for the simulation purpose of the following submission to Energy Conversion and Management. "Li Sun, Yuhui Jin*, Jiong Shen, Lei Pan*, Kwang Y. Lee; Economic Analysis and Control of a Grid-Connected PEM Fuel Cell in Distributed Generation "The codes are tested well under MATALB R2015a. Running the "Main.m", the readers will get FIG. 11 in the paper. Note that the in the control structure, there are many swiching blocks to guarantee the system starting up to a reasonable initial steady state. Any query can be directed to Dr. Li Sun, [email protected]
sj-pdf-1-jiv-10.1177_08862605211050093 – Supplemental Material for Associations of Maternal Adverse Childhood Experiences with Behavioral Problems in Preschool Children
No full textSupplemental Material, sj-pdf-1-jiv-10.1177_08862605211050093 for Associations of Maternal Adverse Childhood Experiences with Behavioral Problems in Preschool Children by Xiaoyan Wang, Gangzhu Yin, Feng Guo, Haili Hu, Zhicheng Jiang, Shuqin Li, Ziyu Shao and Yuhui Wan in Journal of Interpersonal Violence</p
Maximally selected test statistics: methodology and application
No full textIn clinical or public health research studies, an investigator often assumes that some continuous predictive variable X allows classifying study population into a risk and a normal group with respect to a response variable Y. The aim of these research efforts is to transform a continuous variable into a binary variable by identifying a threshold or cutpoint in the predictor to distinguish different groups with high or low probabilities of favorable outcomes. Several methods including maximally selected chi-square statistics, maximally selected rank statistics and Koziol’s exact finite sample distribution approach to search for the optimal cut point have been reviewed and compared in Chapter 1. Since utilizing the maximally selected rank statistic to analyze semi-continuous predictors has not been discussed in the literatures, this dissertation provides the comparison of the null distribution, power curve, precision of cut point estimation between semi-continuous and continuous predictive variables via simulation. In Chapter 2, we confirmed the critical values to reject the null hypotheses are lower in semi-continuous predictors compare to continuous predictors. In Chapter 3, we show the power of maximally selected rank statistic from the semi-continuous predictor is stochastically larger than that from the continuous predictor. In Chapter 4, we found besides the sample size and effect size, the location of the true cut-point also affects the precision of the cut-point estimates. Compared to the continuous predictor, the semi-continuous predictor has higher percentage of correct cut-point estimates. The null distributions for semi-continuous predictor simulated in Chapter 1 are then applied to the study of “lead exposure, HPA dysfunction, blood pressure and hypertension risk” (Fiedler 2010) in Chapter 6 to determine the cut point in blood lead level that triggers increased stress. This application focused on the multivariate relationship between predictor variables and response variable, which were not discussed in the literature. After adjusted by other confounder variables through the regression residuals, a significant cut-point of 2 μg/dL in blood lead level is identified. Since the use of the regression residual of the response variable violates the independence assumption of this maximally selected rank statistics, this dissertation also demonstrated the robustness of this assumption in chapter 5.D.P.H.Includes bibliographical referencesby Yuhui M
sj-tif-1-nnr-10.1177_15459683221095034 – Supplemental material for Effects of Repetitive Transcranial Magnetic Stimulation on Motor Symptoms in Parkinson’s Disease: A Meta-Analysis
No full textSupplemental material, sj-tif-1-nnr-10.1177_15459683221095034 for Effects of Repetitive Transcranial Magnetic Stimulation on Motor Symptoms in Parkinson’s Disease: A Meta-Analysis by Ruoyu Li, Yijing He, Wenting Qin, Zhuoyu Zhang, Junhui Su, Qiang Guan, Yuhui Chen and Lingjing Jin in Neurorehabilitation and Neural Repair</p
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