CONCEPTION D’UN LIVRE NUMÉRIQUE SUR LES CIRCUITS ÉLECTRIQUES ET FORMATION DES ENSEIGNANTS / DESIGN OF A NUMERIC BOOK ON ELECTRIC CIRCUITS AND TEACHER EDUCATION

Dans la présente recherche, nous présentons un résumé des travaux réalisés de par le monde sur la formation scientifique des enseignants des écoles primaires et nous verrons qu’elle est insuffisante pour initier les élèves aux sciences. Ensuite, nous esquissons une synthèse des recherches qui développent des environnements didactiques axés sur l’expérimentation, en vue d’aider les enseignants à acquérir les rudiments de la démarche expérimentale. Finalement, nous illustrons la structure générale d'un livre numérique portant sur l'expérimentation relative aux fonctionnements de circuits électriques simples, suivis de quelques commentaires d'étudiants québécois en formation qui l'ont étudié dans le cadre d'un cours universitaire portant sur la didactique des sciences et des technologies, au primaire. In this research, we present a summary of the work done around the world on the scientific training of primary school teachers and we will see that their training is deficient. Then, we sketch a synthesis of research that develops didactic environments focused on experimentation, to give teachers, the basics of the experimental approach. Finally, we illustrate the general structure of a digital book on experimentation related to the operation of simple electrical circuits, followed by some comments from Quebec students in training who experimented with it in a university course on the didactics of sciences and technologies at the primary level. Article visualizations:<img src="/-counters-/edu_01/0975/a.php" alt="Hit counter" />

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Experimental Determination of the Effective Resolution Limit in Thick Specimens at High Voltages

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100116942 ◽

1975 ◽

Vol 33 ◽

pp. 664-665

Author(s):

Mircea Fotino

Keyword(s):

Experimental Approach ◽

Chromatic Aberration ◽

Resolving Power ◽

Biological Research ◽

Specimen Thickness ◽

Resolution Limit ◽

High Voltage Electron Microscopy ◽

Voltage Electron ◽

Resolution Level

The use of thick specimens (0.5 μm to 5.0 μm or more) is one of the most resourceful applications of high-voltage electron microscopy in biological research. However, the energy loss experienced by the electron beam in the specimen results in chromatic aberration and thus in a deterioration of the effective resolving power. This sets a limit to the maximum usable specimen thickness when investigating structures requiring a certain resolution level.An experimental approach is here described in which the deterioration of the resolving power as a function of specimen thickness is determined. In a manner similar to the Rayleigh criterion in which two image points are considered resolved at the resolution limit when their profiles overlap such that the minimum of one coincides with the maximum of the other, the resolution attainable in thick sections can be measured by the distance from minimum to maximum (or, equivalently, from 10% to 90% maximum) of the broadened profile of a well-defined step-like object placed on the specimen.

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Malfunctional Reorganization in the Developing Limbo-Prefrontal System in Animals: Implications for Human Psychoses?

Zeitschrift für Neuropsychologie ◽

10.1024//1016-264x.12.1.8 ◽

2001 ◽

Vol 12 (1) ◽

pp. 8-14

Author(s):

Gertraud Teuchert-Noodt ◽

Ralf R. Dawirs

Keyword(s):

Prefrontal Cortex ◽

Mental Disorders ◽

Dentate Gyrus ◽

Cognitive Functions ◽

Experimental Approach ◽

Regulatory Mechanisms ◽

Hippocampal Dentate Gyrus ◽

Non Invasive ◽

Invasive Method ◽

Activity Dependent

Abstract: Neuroplasticity research in connection with mental disorders has recently bridged the gap between basic neurobiology and applied neuropsychology. A non-invasive method in the gerbil (Meriones unguiculus) - the restricted versus enriched breading and the systemically applied single methamphetamine dose - offers an experimental approach to investigate psychoses. Acts of intervening affirm an activity dependent malfunctional reorganization in the prefrontal cortex and in the hippocampal dentate gyrus and reveal the dopamine position as being critical for the disruption of interactions between the areas concerned. From the extent of plasticity effects the probability and risk of psycho-cognitive development may be derived. Advance may be expected from insights into regulatory mechanisms of neurogenesis in the hippocampal dentate gyrus which is obviously to meet the necessary requirements to promote psycho-cognitive functions/malfunctions via the limbo-prefrontal circuit.

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Social Cognition in Gilles de la Tourette Syndrome

Zeitschrift für Neuropsychologie ◽

10.1024/1016-264x/a000272 ◽

2019 ◽

Vol 30 (4) ◽

pp. 243-249

Author(s):

Ronja Weiblen ◽

Melanie Jonas ◽

Sören Krach ◽

Ulrike M. Krämer

Keyword(s):

Tourette Syndrome ◽

Social Cognitive ◽

Mirror Neuron System ◽

Mirror Neuron ◽

Theoretical Work ◽

Neural Processes ◽

The Social ◽

Decision Making System ◽

Social Decision Making ◽

Work Done

Abstract. Research on the neural mechanisms underlying Gilles de la Tourette syndrome (GTS) has mostly concentrated on abnormalities in basal ganglia circuits. Recent alternative accounts, however, focused more on social and affective aspects. Individuals with GTS show peculiarities in their social and affective domain, including echophenomena, coprolalia, and nonobscene socially inappropriate behavior. This article reviews the experimental and theoretical work done on the social symptoms of GTS. We discuss the role of different social cognitive and affective functions and associated brain networks, namely, the social-decision-making system, theory-of-mind functions, and the so-called “mirror-neuron” system. Although GTS affects social interactions in many ways, and although the syndrome includes aberrant social behavior, the underlying cognitive, affective, and neural processes remain to be investigated.

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Assessing Self-Efficacy in Presentation and Moderation Skills

European Journal of Psychological Assessment ◽

10.1027/1015-5759/a000423 ◽

2019 ◽

Vol 35 (4) ◽

pp. 564-576 ◽

Cited By ~ 3

Author(s):

Tobias Ringeisen ◽

Sonja Rohrmann ◽

Anika Bürgermeister ◽

Ana N. Tibubos

Keyword(s):

Construct Validity ◽

Self Efficacy ◽

Self Report ◽

Factor Analyses ◽

Confirmatory Factor Analyses ◽

Confirmatory Factor ◽

Constructed Self ◽

University Course ◽

Correlated Factors ◽

Report Measure

Abstract. By means of two studies, a self-report measure to assess self-efficacy in presentation and moderation skills, the SEPM scales, was validated. In study 1, factorial and construct validity were examined. A sample of 744 university students (41% females; more than 50% between 20 and 25 years) completed newly constructed self-efficacy items. Confirmatory factor analyses (CFAs) substantiated two positively correlated factors, presentation (SEPM-P) and moderation self-efficacy (SEPM-M). Each factor consists of eight items. The correlation patterns between the two SEPM subscales and related constructs such as extraversion, the preference for cooperative learning, and conflict management indicated adequate construct validity. In study 2, criterion validity was determined by means of latent change modeling. One hundred sixty students ( Mage = 24.40, SD = 4.04; 61% females) took part in a university course to foster key competences and completed the SEPM scales at the beginning and the end of the semester. Presentation and moderation self-efficacy increased significantly over time of which the latter was positively associated with the performance in a practical moderation exam. Across both studies, reliability of the scales was high, ranging from McDonald’s ω .80 to .88.

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Coping Humor as a Mediator Between Emotional Intelligence and Job Satisfaction

Journal of Personnel Psychology ◽

10.1027/1866-5888/a000185 ◽

2017 ◽

Vol 16 (3) ◽

pp. 155-159 ◽

Cited By ~ 4

Author(s):

Peizhen Sun ◽

Jennifer J. Chen ◽

Hongyan Jiang

Keyword(s):

Job Satisfaction ◽

Emotional Intelligence ◽

Future Research ◽

Satisfaction Scale ◽

Primary School Teachers ◽

Mediating Role ◽

Regulation Of Emotion ◽

The Relationship ◽

Overall Job Satisfaction

Abstract. This study investigated the mediating role of coping humor in the relationship between emotional intelligence (EI) and job satisfaction. Participants were 398 primary school teachers in China, who completed the Wong Law Emotional Intelligence Scale, Coping Humor Scale, and Overall Job Satisfaction Scale. Results showed that coping humor was a significant mediator between EI and job satisfaction. A further examination revealed, however, that coping humor only mediated two sub-dimensions of EI (use of emotion and regulation of emotion) and job satisfaction. Implications for future research and limitations of the study are discussed.

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