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We conduct an analysis of 1835 pledges to 10 music production projects hosted on the largest Brazilian crowdfunding platform, namely the Catarse Web site, and we assess the relation between the fundraising accumulation period, the donor–entrepreneur distance and the propensity of donors to back projects. Our results suggest a significantly negative association between distance and the value of capital pledged to projects, which is consistent with the notion that the entrepreneur’s network of close contacts might play a central role in funding. Furthermore, our results contradict the idea that crowdfunding reduces the inhibiting effect of donor–entrepreneur distance. In addition, the results show that a long project exposure is associated with higher values of pledges. These results suggest practical implications for the study of crowdfunding as a financing platform. This study contributes to the literature on the use of crowdfunding as an alternative funding source in a major emerging market.  相似文献   
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ABSTRACT

This reflection on practice provides a foundation for understanding the impact of Hurricane Harvey on teachers and children across the Texas Gulf Coast. It also documents the emergence of a professional development initiative born when early childhood teacher educators in the community outreach arm of a major university sought to provide immediate support for colleagues returning to their classrooms in the wake of the disaster. The initiative was designed to promote teachers’ understanding of the theoretical rationale behind supporting the psychosocial development of children in times of trauma and offer specific strategies and activities to help children work through this particular natural disaster, that is, storms, flooding, property destruction, and some physical harm. Implications for early childhood teacher preparation along with recommendations for future action are included.  相似文献   
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This article examines the online discourse that took place in representative threads from two classes, seeking to document indicators that students did or did not engage in co‐construction of knowledge. Stahl's (2006 Stahl, G. 2006. Group cognition: Computer support for building collaborative knowledge, Cambridge, MA: MIT Press.  [Google Scholar]) social theory of computer supported collaborative learning (CSCL) is used along with discourse analysis methods to examine these course dialogues. Findings show the class that had a peer‐like, consistent facilitative instructor and discussion anchored around questions and shared artifacts was more likely to engage in discussion leading to the negotiation of knowledge and understanding. This class relied on social acknowledgements, questions, and shared exploration of perspectives and theories throughout their discussion. These elements and strategies appear to be important components that make up for lower levels of tacit understanding in online environments, thus enabling learners to interact in social learning processes. The other class, which lacked a facilitative instructor, did not have the same results. Although interaction levels were equal and students carried topical motifs such as the phrase “faster, better, cheaper” from message to message, students in this other class did not engage deeply or develop new understanding of the course material through the discussion.  相似文献   
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The current status of intellectual assessment is reviewed. Traditional psychometric techniques are criticized for yielding only a single score that purports to measure the individual's intellectual ability. Such a unified score gives no indication of what specific deficit is present, nor does it suggest a strategy for remediation. The AVOM Test is presented as a potentially useful device. This experimental test measures performance in two input channels, auditory and visual, and two output channels, oral and manual. AVOM was administered to over 200 elementary school students. Scores increased with age, and the other results were supportive of the potential utility of the device.  相似文献   
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Lacrosse requires the coordinated performance of many complex skills. One of these skills is shooting on the opponents’ net using one of three techniques: overhand, sidearm or underhand. The purpose of this study was to (i) determine which technique generated the highest ball velocity and greatest shot accuracy and (ii) identify kinematic and kinetic variables that contribute to a high velocity and high accuracy shot. Twelve elite male lacrosse players participated in this study. Kinematic data were sampled at 250 Hz, while two-dimensional force plates collected ground reaction force data (1000 Hz). Statistical analysis showed significantly greater ball velocity for the sidearm technique than overhand (< 0.001) and underhand (< 0.001) techniques. No statistical difference was found for shot accuracy (P > 0.05). Kinematic and kinetic variables were not significantly correlated to shot accuracy or velocity across all shot types; however, when analysed independently, the lead foot horizontal impulse showed a negative correlation with underhand ball velocity (= 0.042). This study identifies the technique with the highest ball velocity, defines kinematic and kinetic predictors related to ball velocity and provides information to coaches and athletes concerned with improving lacrosse shot performance.  相似文献   
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