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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Flocking motion in swarms with limited sensing radius and heterogeneous input constraints     

Eber Jafet Ávila-Martínez  Juan Gonzalo Barajas-Ramírez 《Journal of The Franklin Institute》2021,358(4):2346-2366

This paper addresses the flocking motion problem for swarms of agents with two restrictions: limited communication/detection ranges and different input constraints. In this problem, the distance between pairs of agents determines if a communication/detection link exists among them, while each agent has a different control action bound. We use the notion of proximity graph to model communication/detection between agents and provide distributed controllers designed for leaderless and leader-followers flocking motion scenarios. Our proposed designs preserve the connectivity of the proximity graph while the control effort satisfies the bound of each particular agent. Unlike previous results, our protocols take advantage of the group’s input heterogeneity to use agents with a greater capacity to compensate for neighbors that are less capable of meeting the group’s requirements. Additionally, our designs are based only on local state errors and are robust to non-modeled edge failures. To illustrate the effectiveness of our proposal, we use numerical simulations of different flocking scenarios.  相似文献   

Development and initial validation of the Psychological Characteristics of Developing Excellence Questionnaire     

Macnamara Á  Collins D 《Journal of sports sciences》2011,29(12):1273-1286

The development of talent is a complex process mediated by a host of psychological, social, physical, and environmental variables. Unfortunately, the multiple processes involved in talent development are frequently ignored by the systems and protocols employed in sport. Modern approaches to talent development are beginning to stress the initial possession, then subsequent development, of generic psychological characteristics (e.g. psychological characteristics of developing excellence; MacNamara, Button, & Collins, 2010a , 2010b ) as the best way to realize latent potential. Accordingly, this paper describes the development and initial validation of the Psychological Characteristics of Developing Excellence Questionnaire (PCDEQ). In the first phase, an initial list of 160 items was developed. A combination of expert panel reviews, cognitive interviews, and a pilot test was used to assess the relevance, representativeness, and validity of each item. Ninety-six items were retained following these steps. Exploratory factor analysis, with a sample of 363 athletes, revealed an interpretable 59-item, 6-factor solution with good internal consistency (0.870, 0.866, 0.847, 0.741, 0.749, and 0.701 respectively). The Psychological Characteristics of Developing Excellence Questionnaire would appear to hold promise as a useful tool to provide coaches and athletes with information about the psychological characteristics of developing excellence that are being properly addressed or neglected during different stages of development or in different contexts.  相似文献   

面向中华古籍阅读推广与文化传播的VR系统模型构建与实现     

张宁  Miguel Baptista Nunes  李俊炀  张伟波 《图书情报工作》2021,65(13):12-24

[目的/意义] 旨在借助VR媒介技术,克服或弱化普通读者在古籍阅读中存在的古籍获取不便和古汉语理解、专业知识、特定文化背景知识、阅读动力不足的问题,促进古籍阅读推广与文化传播。[方法/过程] 利用文献调研方法分析梳理认知科学和教育技术领域相关理论,提出VR古籍系统设计原则与模型,基于单个案例分析,设计、开发、测试系统原型,最后利用实验方法以问卷方式收集评估数据,验证设计原则、模型的有用性。[结果/结论] 研究成果包括VR古籍系统设计原则、VR古籍系统理论模型、首例VR古籍系统应用原型、VR古籍系统使用理论,可为后续从事VR古籍系统研究与设计的科研人员和设计人员借鉴使用。  相似文献   

Implementation of the flipped classroom and its longitudinal impact on improving academic performance     

Torres-Martín  César  Acal  Christian  El-Homrani  Mohammed  Mingorance-Estrada  Ángel C. 《Educational technology research and development : ETR & D》2022,70(3):909-929

Educational technology research and development - The objective has been to know the impact of the flipped classroom methodology on the academic performance of students during their training...  相似文献   

An evolving Learning Management System for new educational environments using 2.0 tools     

Miguel Á. Conde  Francisco J. García-Peñalvo  María J. Rodríguez-Conde  Marc Alier  María J. Casany  Jordi Piguillem 《Interactive Learning Environments》2014,22(2):188-204

The tools used in learning processes are in a continuous state of flux. One of the most significant changes is the application of Information and Communications technologies (ICTs) to educational contexts. This provides new possible ways to carry out learning activities, new learning services, the possibility to use new kinds of contents and activities, etc. However, ICTs have not provided as many advantages as they were supposed to, so changes are necessary. In this context, a new set of tools, Web 2.0, offers a new way to understand the Web, in which the user is the centre. Further, users can cooperate in order to define contents. This concept is also applied in technology-mediated learning but there are important problems when one tries to integrate such tools and concepts with existing systems. This paper explores the integration of these tools in traditional learning environments, the various possibilities and their advantages and drawbacks. After that, an interoperability scenario is described and two experiences are presented to show how 2.0 tools can be integrated in learning activities, and its effect in educational process.  相似文献   

Developing an audiovisual notebook as a self‐learning tool in histology: Perceptions of teachers and students          下载免费PDF全文

Antonio Campos‐Sánchez  Juan‐Antonio López‐Núñez  Giuseppe Scionti  Ingrid Garzón  Miguel González‐Andrades  Miguel Alaminos  Tomás Sola 《Anatomical sciences education》2014,7(3):209-218

Videos can be used as didactic tools for self‐learning under several circumstances, including those cases in which students are responsible for the development of this resource as an audiovisual notebook. We compared students' and teachers' perceptions regarding the main features that an audiovisual notebook should include. Four questionnaires with items about information, images, text and music, and filmmaking were used to investigate students' (n = 115) and teachers' perceptions (n = 28) regarding the development of a video focused on a histological technique. The results show that both students and teachers significantly prioritize informative components, images and filmmaking more than text and music. The scores were significantly higher for teachers than for students for all four components analyzed. The highest scores were given to items related to practical and medically oriented elements, and the lowest values were given to theoretical and complementary elements. For most items, there were no differences between genders. A strong positive correlation was found between the scores given to each item by teachers and students. These results show that both students' and teachers' perceptions tend to coincide for most items, and suggest that audiovisual notebooks developed by students would emphasize the same items as those perceived by teachers to be the most relevant. Further, these findings suggest that the use of video as an audiovisual learning notebook would not only preserve the curricular objectives but would also offer the advantages of self‐learning processes. Anat Sci Educ 7: 209–218. © 2013 American Association of Anatomists.  相似文献   

Active relatives and health-related physical fitness in European adolescents: The HELENA Study     

M Martín-Matillas  FB Ortega  JR Ruiz  D Martínez-Gómez  G Vicente-Rodríguez  A Marcos  L Béghin  A Kafatos  M González-Gross  M Zaccaria  D Molnár  S De Henauw  M Sjöström  LA Moreno  MJ Castillo On Behalf Of The Helena Study 《Journal of sports sciences》2012,30(13):1329-1335

Abstract High physical fitness in childhood and adolescence is positively associated with favourable health-related outcomes. Our aim was to examine the relationship between relatives' (father, mother, brother, sister, and best friend) physical activity engagement and encouragement on adolescents' physical fitness. Adolescents were part of the HELENA study, a multi-centre study conducted in 10 cities from nine European countries in 2006-2008. Participants were 3288 adolescents (48% boys, 52% girls) aged 12.5-17.5 years with valid data on at least one of the three fitness variables studied: muscular strength (standing long jump), speed/agility (4×10 m shuttle run), and cardiorespiratory fitness (20 m shuttle run). The adolescents reported their relatives' physical activity engagement and encouragement. Analysis of covariance showed that relatives' physical activity engagement (father, mother, brother, and best friend) was positively related to cardiorespiratory fitness (P?相似文献   

The impact of national research funds: A regression discontinuity approach to the Chilean FONDECYT     

José Miguel Benavente  Alessandro Maffioli 《Research Policy》2012,41(8):1461-1475

This paper analyses the role of national research funds in promoting scientific production in emerging economies. The study focuses on the impact of the Chilean National Science and Technology Research Fund (FONDECYT). The analysis uses data drawn from international sources of bibliometric information combined with the administrative records of the program's executing unit. To measure the program's impact, we implement a regression discontinuity (RD) design on principal researchers who applied for funding between 1988 and 1997 considering as outcomes both quantity (publications up to 2002) and quality (citations up to 2005) of their scientific production. Our results show significant and positive impact in terms of publications, but no impact in terms of quality of scientific production in the proximity of the program's threshold ranking.  相似文献   

Sobre lenguas y educación en Europa     

Miguel Siguán 《Cultura y Educación》2013,25(2):69-76

Pasar de una cultura nacional cerrada en sí misma—incluso contraria a su propia diversidad—a formar parte del experimento cultural europeo, requiere que actualicemos nuestros esquemas de comprensión. Estamos viviendo, como ciudadanos, pero más aún como educadores y como estudiantes, uno de los procesos más interesantes del diseño cultural de la historia del planeta, en todo caso del continente. Y la ecuación cultura = lenguaje parece la clave del invento. Sin embargo, Miguel Siguán analiza y resume con claridad la situación de partida y nos subraya la pobreza de nuestro soporte educativo ante el desafío del plurilingüismo.  相似文献