Resilience does not predict academic performance in gross anatomy     

Rodrigo Enrique Elizondo‐Omaña  María de los Angeles García‐Rodríguez  José Miguel Hinojosa‐Amaya  Eliud Enrique Villarreal‐Silva  Rosa Ivette Guzmán Avilan  Juan José Bazaldúa Cruz  Santos Guzmán‐López 《Anatomical sciences education》2011,4(1):56-56

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Optimal design for manipulation of random consensus over discrete information in networked systems     

Sidney Roberto Carvalho  Ubirajara Franco Moreno 《Journal of The Franklin Institute》2021,358(9):5039-5072

In distributed and cooperative systems, the network structure is determinant to the success of the strategy adopted to solve complex tasks. Those systems are primarily governed by consensus protocols whose convergence is intrinsically dependent on the network topology. Most of the consensus algorithms deal with continuous values and perform average-based strategies to reach cohesion over the exchanged information. However, many problems demand distributed consensus over countable values, that cannot be handled by traditional protocols. In such a context, this work presents an approach based on semidefinite programming to design the optimal weights of a network adjacency matrix, in order to control the convergence of a distributed random consensus protocol for variables at the discrete-space domain, based on the voter model. As a second contribution, this work uses Markov theory and the biological inspiration of epidemics to find out a dynamical spreading model that can predict the information diffusion over this discrete consensus protocol. Also, convergence properties and equilibrium points of the proposed model are presented regarding the network topology. Finally, extensive numerical simulations evaluate the effectiveness of the proposed consensus algorithm, its spreading model, and the approach for optimal weight design.  相似文献   

The impact of academic patenting on university research and its transfer     

Gustavo CrespiPablo D’Este  Roberto FontanaAldo Geuna 《Research Policy》2011,40(1):55-68

This paper contributes to the ongoing debate on the impact of academic patenting on publishing and knowledge transfer. Drawing upon two separate surveys of academics, and their CV information, we provide empirical evidence for UK academics in engineering and physical sciences. The contribution of this paper is two-fold. First, our findings show that (the intensity of) academic patenting complements publishing up to a certain level of patenting output, after which we find evidence of a substitution effect. We also find weak evidence of important differences across scientific fields with the more basic-oriented fields showing indications of a crowding-out effect. Second, our analysis of the potential impact of patenting on knowledge transfer shows a positive correlation between the stock of patents and engagement in knowledge transfer channels. However, we find that a substitution effect sets in, indicating an inverted U-shaped relationship between patenting and several knowledge transfer channels.  相似文献   

On Rest-from-Deliberate-Learning as a Mechanism for the Spacing Effect: Commentary on Chen et al. (2021)     

Sana  Faria  Yan  Veronica X.  Carvalho  Paulo F. 《Educational Psychology Review》2022,34(3):1843-1850

Educational Psychology Review - In their recent paper, Chen et al. (Educational Psychology Review, 2021) propose that rest periods between deliberate learning characterize the spacing effect and...  相似文献   

The Effects of a Preengineering Project-based Learning Curriculum on Self-efficacy Among Community College Students     

Soko S. Starobin  Yu “April” Chen  Aurelia Kollasch  Tushi Baul  Frankie Santos Laanan 《Community College Journal of Research & Practice》2014,38(2-3):131-143

Using statewide survey study data collected from more than 5,000 community college students, this study examined the impact of a preengineering curriculum on students' self-efficacy level after they entered rural community colleges. Project Lead The Way (PLTW), is a project-based learning curriculum for middle and high school students that strives to create a path to college and career success in STEM-related fields. In this article, the authors focused on comparing the probability of rating high self-efficacy among 86 community college students who participated in PLTW with students with no PLTW experience. The findings indicated that PLTW students have significantly lower probability of rating high self-efficacy compared to their non-PLTW counterparts. It might be that PLTW students rated their self-efficacy by comparing with a group of their close peers, who might be a group of academically high-ability students. This study provides implications for the unique, perhaps unintentional, peer effects of the project-based learning curriculum on the self-rating of students' self-efficacy. The findings highlighted the secondary-postsecondary nexus on STEM education, especially the importance of secondary programs that could positively influence the STEM educational pathways for community college students.  相似文献   

The Qubba of the Rabbato at Mineo in Sicily     

Roberto Campailla 《Al-Masaq: Islam & the Medieval Mediterranean》1995,8(1):1-20

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The Market for Picasso Prints: A Hybrid Model Approach     

Marilena?Locatelli?BieyEmail author  Roberto?Zanola 《Journal of Cultural Economics》2005,29(2):127-136

Two basic approaches have been used by the literature focusing on the return to holding artistic works: the hedonic price model and the repeat-sales model. This paper provides a procedure for jointly estimating the two models in a way that take advantages of the unique information contained in each. A semiannual price index for Picasso prints is estimated by using a model derived from the basic framework of the hybrid models. The empirical results suggest that the hybrid model provides the most precisely estimated price index by reducing the level of price volatility.JEL Classification: C5, Z1p  相似文献   

Anthropometric profiles of elite older triathletes in the Ironman Brazil compared with those of young Portuguese triathletes and older Brazilians     

Silva DA  Benedetti TR  Ferrari EP  Meurer ST  Antes DL  Silva AM  Santos DA  Matias CN  Sardinha LB  Vieira F  Petroski EL 《Journal of sports sciences》2012,30(5):479-484

The objective of this study was to describe the anthropometric profiles of elite older triathletes participating in the 2009 Ironman Brazil and to compare their somatotype, anthropometric and body composition characteristics with those of elite young triathletes and older non-athletes. The sample consisted of 64 males, divided into three groups: (1) older triathletes (n = 17), (2) young triathletes (n = 24), and (3) older non-athletes (n = 23). Somatotype was analysed according to the Carter and Heath ( 1990 ) method. Body mass index, sum of four skinfolds, percentage body fat, body fat mass, and fat-free mass were also estimated. Older non-athletes had higher endomorphy, sum of four skinfolds, fat percentage, and body fat mass than the athletes. Older athletes who participated in the Ironman and elite young triathletes had higher fat-free mass than older non-athletes. Older triathletes and older non-athletes were considered mainly endomorphic mesomorphs and young triathletes mainly ectomorphic mesomorphs. The findings that characterize the anthropometric profile of athletes in this sports modality could be used as a reference.  相似文献   

The indebtedness of Portuguese soccer teams--looking for determinants     

Mourao P 《Journal of sports sciences》2012,30(10):1025-1035

This work tests determinants of the indebtedness of Portuguese soccer teams using the sample of teams playing in the Portuguese major league from the 1999-2000 season until the 2005-2006 season. This is a major issue related to both the medium-term solvency of the Portuguese professional soccer sector and the solvency of the European soccer market. Our results show that past debt obligations, the market area, the rank of each team and, particularly, the costs of wages exert a positive and significant effect on the debt ratio for each soccer team. These results support suggestions seeking to promote the sustainability of the soccer sector, namely, the imposition of wage caps, a new regulation limiting the increasing debt ratios and the redistribution of TV rights via a more egalitarian system.  相似文献   

Teaching about violence prevention: A bridge between public health and criminal justice educators     

Roberto Hugh Potter  Jeanne E. Krider 《Journal of Criminal Justice Education》2013,24(2):339-351

Public health perspectives on violence-related injuries have become increasingly important over the past two decades, yet they are rarely mentioned in criminal justice educational texts or articles. Here we provide a brief overview of the public health approach to the prevention of violence and related injuries and compare it to an approach to crime prevention commonly associated with the criminal justice approach: deterrence. The prevention of sexual assault on college and university campuses is used as an illustration of the two approaches. Finally, given the similarities between the manner in which these two multi-disciplinary fields approach violence prevention, we explore how and why criminal justice educators might want to teach a bridge between public health and criminal justice.  相似文献