Abusive head trauma at a tertiary care children's hospital in Mexico City. A preliminary study     

Díaz-Olavarrieta C  García-Piña CA  Loredo-Abdala A  Paz F  Garcia SG  Schilmann A 《Child abuse & neglect》2011,35(11):915-923

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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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巴西首位女总统：人生始终在闯关     

Rita 《出版参考》2011,(4):46-47

从宣布参选之日起,关于迪尔玛·罗塞夫的角色描述就开始充斥媒体——“侠盗罗宾汉”、“游击队员”、“颠覆者圣女贞德”、“后卢拉时代的铁娘子”、“巴西之母”……她的人生跌宕起伏、惊险刺激犹如一部传奇大片。  相似文献   

基于本体的作战信息分发     

朱孟平  张东戈 《情报科学》2011,(8)

根据作战群在联合作战中的指挥控制特点及对信息组织的特点和模式的基础上,结合本体方法,提出一种基于作战用户本体和作战领域本体的面向作战单元的个性化服务的信息组织模式,并详述了其中的战场信息资源描述、作战用户建模和作战信息重组三个模块的详细流程、描述语言和具体算法。  相似文献   

Pheromone synthesis in a biomicroreactor coated with anti-adsorption polyelectrolyte multilayer     

Dimov N  Muñoz L  Carot-Sans G  Verhoeven ML  Bula WP  Kocer G  Guerrero A  Gardeniers HJ 《Biomicrofluidics》2011,5(3):34102-3410212

To prepare a biosynthetic module in an infochemical communication project, we designed a silicon/glass microreactor with anti-adsorption polyelectrolyte multilayer coating and immobilized alcohol acetyl transferase (atf), one of the key biosynthetic enzymes of the pheromone of Spodoptera littoralis, on agarose beads inside. The system reproduces the last step of the biosynthesis in which the precursor diene alcohol (Z,E)-9,11-tetradecadienol is transformed into the major component (Z,E)-9,11-tetradecadienyl acetate. The scope of this study was to analyze and implement a multilayer, anti-adsorption coating based on layer-by-layer deposition of polyethylenimine/dextransulfate sodium salt (PEI/DSS). The multilayers were composed of two PEI with molecular weights 750 and 1.2 kDa at pH 9.2 or 6.0. Growth, morphology, and stability of the layers were analyzed by ellipsometry and atomic force microscopy (AFM). The anti-adsorption functionality of the multilayer inside the microreactor was validated. The activity of His(6)-(atf) was measured by gas chromatography coupled to mass spectrometer (GC-MS).  相似文献   

Differentiating experts' anticipatory skills in beach volleyball     

Cañal-Bruland R  Mooren M  Savelsbergh GJ 《Research quarterly for exercise and sport》2011,82(4):667-674

In this study, we examined how perceptual-motor expertise and watching experience contribute to anticipating the outcome of opponents' attacking actions in beach volleyball. To this end, we invited 8 expert beach volleyball players, 8 expert coaches, 8 expert referees, and 8 control participants with no beach volleyball experience to watch videos of attack sequences that were occluded at three different times and to predict the outcome of these situations. Results showed that expert players and coaches (who were both perceptual-motor experts) outperformed the expert referees (who were watching experts but did not have the same motor expertise) and the control group in the latest occlusion condition (i.e., at spiker-ball contact). This finding suggests that perceptual-motor expertise may contribute to successful action anticipation in beach volleyball.  相似文献   

Effects of quality of opposition and match status on technical and tactical performances in elite volleyball     

Marcelino R  Mesquita I  Sampaio J 《Journal of sports sciences》2011,29(7):733-741

The aim of this study was to assess the effects of quality of opposition and match status on technical and tactical volleyball performances, as measured by block, attack, serve, and set actions related to the tasks, space, players, and efficacy of selected game actions. Twenty-five matches from the men's World Cup 2007 were notated and through cluster analysis were classified as "high" (HIGH), "intermediate" (INT) or "low" (LOW) quality. The difference between points scored and points allowed was used to define match status. Multinomial logistic regression identified an association of match status with: set direction (likelihood ratio test [LRT]?=?15.5, P?=?0.017) and block typology (LRT?=?9.6, P?=?0.047) in HIGH vs. HIGH matches; attack player (LRT?=?17.4, P?=?0.026) and block typology (LRT?=?9.2, P?=?0.010) in LOW vs. LOW matches; and serve type (LRT?=?17.4, P?=?0.002), block strategy (LRT?=?53.7, P?<0.001), and serve efficacy (LRT?=?26.0, P?=?0.001) in HIGH vs. LOW matches. Results suggest that volleyball teams took more risky decisions in unbalanced situations. They also carried less risk through technical and tactical decisions in balanced and moderate situations whether they had the advantage or not. Therefore, strategic behaviour was affected by the interaction of quality of opposition and match status, providing a better understanding of volleyball game performance and new insights for practice, competition, and research.  相似文献   

Fostering parents-professional collaboration for facilitating the school inclusion of students with ASD: design of the “ToGather” web-based prototype     

Mazon  Cécile  Etchegoyhen  Kattalin  Saint-Supery  Isabeau  Amestoy  Anouck  Bouvard  Manuel  Consel  Charles  Sauzéon  Hélène 《Educational technology research and development : ETR & D》2022,70(1):231-262

Educational technology research and development - In recent years, many psycho-educational technologies were studied to address the school-related difficulties encountered by students with autism...  相似文献   

Systematic Review: Flipped Classrooms in the Performance of Undergraduate Science Students     

Serrano Amarilla  Natalia  Cuetos Revuelta  Mar&#;a Jos&#;  Manzanal Mart&#;nez  Ana Isabel 《Journal of Science Education and Technology》2022,31(5):594-604

Journal of Science Education and Technology - The sciences are a complex and especially demanding area of study for undergraduate students, particularly in the earlier years, which are a critical...  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