Mainly for methodological reasons, little is known about the course of development of early cognitive competencies diagnosed with the violation of expectation (VoE) method in infants. The goal of this research was to evaluate the use of pupillometry as a unified approach to assess expectancy violations during and beyond the “dark ages” between 1 and 3 years. We tested children aged 1–6 years and adults (N = 279) with pictures of animals combined with matching or mismatching animal sounds. All age groups exhibited significantly greater pupil dilation in mismatched than matched trials. We conclude that pupillometry is a viable alternative to the VoE method that, by contrast to the latter, can be used throughout the life span. 相似文献
Weighted vests are widely used to improve running economy and performance. However, it is not well-studied how running mechanics are adapted to counteract the higher peak vertical ground reaction forces (Fpeak) while running with such a device. Therefore, the present study aimed to investigate the effects of different loading conditions on running mechanics at different velocities. Thirteen subjects participated in two separate sessions one week apart. In the first session, maximal aerobic speed (MAS) was determined through a maximal incremental running test while in the second session, they were instructed to run during one minute under different loading (0%, +10% and +20% of body mass [BM]) and velocity (60%, 80% and 100% of MAS) conditions in a random order. Spatiotemporal data were recorded and then running mechanics modelled using the spring-mass model. The main results indicated that vertical and leg stiffness (Kvert and Kleg, respectively) were increased (P?P?>?.05) when load was changed. At the same time, alterations of the running kinematics were observed such as longer contact times, reduced flight times, stride frequencies and step lengths, as well as an increase of the centre of mass dynamics. Based on these results it is assumed that runners maintain a certain stiffness level for each velocity despite different loading conditions. As a consequence, Fpeak increases and this probably causes spatiotemporal adjustments in the movement kinematics. 相似文献
Studying abroad is one way in which university students can develop personal capital and distinguish themselves in an increasingly congested graduate labour market. Data show that studying abroad indeed provides employment benefits, with evidence pointing to even greater positive effects for students from low socio‐economic status backgrounds. Focusing on a group of Canadian students about to embark on a study exchange, we find no evidence that career‐instrumental reasons played a role in participants’ decisions to study abroad. Rather, they sought personal growth and escape from the everyday frustrations of being an undergraduate student. We argue, however, that these motivations nonetheless have to be understood as strategic, since going on a study exchange abroad allows students to escape temporarily, while ‘staying in the game’ of becoming credentialed at home. We discuss the role of socio‐economic status, as well as the policy implications of these findings. 相似文献
Der vorliegende Beitrag besch?ftigt sich unter Bezugnahme auf einen systemtheoretischen Kommunikationsbegriff mit der (p?dagogischen)
Strukturierung des Lernens Erwachsener. Er geht von der These aus, dass die P?dagogisierung des lernbezogenen Umgangs mit
Wissen im Erwachsenenalter unsichtbar (gemacht) wird. Auf der Grundlage eines abgeschlossenen DFG-Projekts werden unterschiedliche
Formen p?dagogischer Kommunikation dargestellt und das in ihren Settings, ihrer kommunikativen Verfasstheit und den Mustern
ihrer Strukturierung eingelagerte Invisibilisierungspotenzial herausgearbeitet. Vor diesem Hintergrund wird das Konzept des
Lebenslangen Lernens als eine entwickelte Form des Umgangs mit dem Paradox der (Un-)Sichtbarkeit p?dagogischer Kommunikation
interpretiert. Was diese Institutionalisierungsform des Lernens kennzeichnet, ist somit eine doppelt gegenl?ufige Gleichzeitigkeit
von Visibilisierung und Invisibilisierung. 相似文献
Factors that influence the incidence of utilization deficiencies and other recall/strategy-use patterns on a strategic memory task were evaluated in two hundred and fourteen 7- and 9-year-old children. Both utilization deficiencies and the incidence of children showing increases in both recall and strategy use over phases were more likely to be observed on phase transitions involving prompting or when different lists of items were included on consecutive trials; in contrast, increases in recall in the absence of increases in strategy use were more likely to be found between trials consisting of the same stimulus items. This research clearly indicates that patterns of recall/strategy-use relations, including utilization deficiencies, vary meaningfully with the age of the child and a variety of contextual factors. 相似文献
Observed process quality in infant/toddler classrooms was compared in Germany (n = 75) and the USA (n = 219). Process quality was assessed with the Infant/Toddler Environment Rating Scale(ITERS) and parent attitudes about ITERS content with the ITERS Parent Questionnaire (ITERSPQ). The ITERS had comparable reliabilities in the two countries and similar factors were found. Content validity of the ITERS is supported in both countries by similarly high ITERSPQ importance scores. ITERS classroom mean scores are similar (Germany = 3.21; USA = 3.36), but a higher US standard deviation is found. A discriminant analysis revealed differences between countries on a bipolar dimension, with US programs characterized by higher scores on custodial issues while German programs have higher scores on educational aspects. Spearman rank order correlations were completed on ITERSPQ importance scores and observed ITERS scores, showing an association only in the USA. Results are discussed in terms of the parental values and infrastructures found in the two countries.
La qualité de processus observée dans les salles de classe des Enfants/Petits Enfants a été comparée en l’Allemagne (n = 75) et aux Etats‐Unis (n = 219). La qualité de processus a été évaluée avec l’Échelle d’Évaluation de l’Environnement des Enfants/Petits Enfants (ITERS) et les attitudes des parents au sujet du contenu de l’ITERS avec le Questionnaire d’ITERS pour les Parents (ITERSPQ). L’ITERS a eu fiabilités comparables dans les deux pays et des facteurs semblables ont été trouvés. La validité du contentu de l’ITERS est soutenue dans les deux pays par des points sur l’importance d’ITERSPQ pareillement hauts. Les points moyens ITERS de la salle de classe sontsemblables, (Allemagne = 3.21 ; Etats‐Unis = 3.36), mais un écart type plus élevé pour les Etats‐Unis est trouvé. Une analyse discriminante a indiqué des différences entre les pays sur une dimension bipolaire, avec les programmes des Etats‐Unis caractérisés par de points plus hauts sur la question de la garde tandis que les programmes allemands ont de points plus hauts sur des aspects éducatifs. Des corrélations Spearman d’ordre de rang ont été accomplies sur les points d’importance ITERSPQ et on a observé des points d’ITERS montrer une association seulement pour les Etats‐Unis. Des résultats sont discutés en termes de valeurs et infrastructures parentales trouvées dans les deux pays.
La calidad de proceso observada en salas de clase de infantes/niños pequeños fue comparada en Alemania (n = 75) y los E.E.U.U. (n = 219). La calidad de proceso fue determinada con la Escala para Evaluar el Ambiente del Infante/ Niño pequeño (ITERS) y las actitudes de los padres hacia el contenido del ITERS con el Cuestionario ITERS para los Padres (ITERSPQ). El ITERS tenía confiabilidades comparables en los dos países y se encontraron factores similares. La validez del contenido del ITERS es apoyada en ambos países por los puntajes sobre la importancia del ITERSPQ que son semejantemente altos. Los puntajes medios ITERS de la sala de clase son similares, (Alemania = 3.21; E.E.U.U. = 3.36), pero se encuentra una desviación estándar más alta con los E.E.U.U. Un análisis discriminante reveló diferencias entre los países en una dimensión bipolar, con los programas de los E.E.U.U. caracterizados por puntajes más altos en el área de la custodia mientras que los programas alemanes tienen puntajes más altos en los aspectos educativos. Las correlaciones Spearman sobre el orden de rango fueron completadas en los puntajes sobre la importancia de ITERSPQ y se observaron puntajes de ITERS demostrando una asociación solamente en los E.E.U.U. Los resultados se discuten en términos de los valores parentales e infraestructuras encontradas en los dos países. 相似文献
In this paper, I analyze how recent calls to internationalize publication behavior affect research practices at an automotive engineering department in Germany. Automotive engineering is a field with traditionally rather scarce publication activity and strong connections to industry. Substantial authority to define suitable research problems and ways of organizing knowledge production on a daily basis was therefore reserved for local academic elites as well as corporate partners. However, as engineers are increasingly expected to prove their performance through publishing in international peer-reviewed journals, the judgment as to what should be considered “interesting” or “robust” research is partly relegated to a gradually globalizing community of academic peers. This generates a variety of tensions with established ways of coordinating epistemic work at the department studied here. For example, the thematic interests of journals tend to exert a disruptive centrifugal pull in the context of an otherwise highly modular research culture, and possibilities to publish in international venues are unequally distributed across individual research projects. But while department members agree that there is a lack of fit between current practices and new expectations towards their publishing behavior, their opinions about the conclusions that should be drawn differ significantly. Some researchers argue that profound organizational changes are necessary to foster the academic rigor of German engineering research. Others believe that evaluation criteria should simply be adapted. This situation is arguably characteristic for research areas with a traditionally strong orientation to local stakeholders, and it suggests a need for more deliberative, participatory approaches to research evaluation in such fields. 相似文献
For almost a half century David F. Treagust has been an exemplary science educator who has contributed through his dedication and commitments to students, curriculum development and collaboration with teachers, and cutting edge research in science education that has impacted the field globally, nationally and locally. A hallmark of his outstanding career is his collaborative style that inspires others to produce their best work. 相似文献
Animations presented at different speed are assumed to differentially interact with learners’ perception and cognition due to the constraints imposed by learners’ limited sensitivity to incoming dynamic information. To investigate the effects of high and low presentation speed of animation, two studies were conducted. In Study 1, participants were 55 students who learned about the functioning of a four-stroke engine from an animation with user-controlled presentation speed. In Study 2, eye movements of 19 students were analysed for different system-controlled presentation speeds of animation. Results indicated that high presentation speeds accentuated global events (i.e., macro-events), whereas low speeds accentuated local events (i.e., micro-events). However, eye movements were primarily affected by the content rather than the presentation speed of animation. 相似文献
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