Background: Activity Theory applied by the teacher to preschool education favors the development of new psychological formations, such as perception, attention, memory, thought, language, and voluntary self-regulation, which prepare the child for school.
Objective: To highlight the contributions of N.F. Talyzina based on Activity Theory applied to preschool education and to reflect on the theory's use in the Brazilian education system.
Design: This article is theoretically built from research in a sandwich doctorate program in Puebla, Mexico and internship supervision practices for psychologist training at a public university in Brazil's central-west region.
Results: Activity Theory is seldom applied to teaching, including in Brazil, and there is little knowledge about the scientific contributions of one of its practitioners, the late N.F. Talyzina. We chose the preschool stage as the focus of our reflections, and we maintain that the introduction of role-playing as the main activity in early childhood education promotes the development of psychological neoformations and prepares the child for the next stage of school. Finally, we present the internship practices in applied psychology in a Brazilian children's group, with evidence of advances.
Conclusion: There is a need for expansion of the formative experiments reported here to the Brazilian population, for scientific dissemination of the results, and promotion of teacher training and qualification in Activity Theory.
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http://dx.doi.org/10.11621/pir.2023.0306 | DOI Listing |
J Phys Chem A
January 2025
School of Applied Science and Humanities, Haldia Institute of Technology, ICARE Complex, Haldia 721657, India.
This study explores the reactivity of a new intermolecular P/B frustrated Lewis pair in the context of dinitrogen activation through a push-pull mechanism. The ab initio molecular dynamics model known as atom-centered density matrix propagation plays a pivotal role in elucidating the weakly associated encounter complex. In-depth analysis, mainly through intrinsic reaction coordinate calculations, supports a single-step mechanism.
View Article and Find Full Text PDFJ Am Chem Soc
January 2025
Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.
Hydrogen spillover is an important process in catalytic hydrogenation reactions, facilitating H activation and modulating surface chemistry of reducible oxide catalysts. This study focuses on the unveiling of platinum-induced hydrogen spillover on monoclinic tungsten trioxide (γ-WO), employing ambient pressure X-ray photoelectron spectroscopy, density functional theory calculations and microkinetic modeling to investigate the dynamic evolution of surface states at varied temperatures. At room temperature, hydrogen spillover results in the formation of W and hydrogen intermediates (hydroxyl species and adsorbed water), facilitated by Pt metal clusters.
View Article and Find Full Text PDFJ Chem Theory Comput
January 2025
Preferred Networks, Inc., Tokyo 100-0004, Japan.
Mapping the chemical reaction pathways and their corresponding activation barriers is a significant challenge in molecular simulation. Given the inherent complexities of 3D atomic geometries, even generating an initial guess of these paths can be difficult for humans. This paper presents an innovative approach that utilizes neural networks to generate initial guesses for reaction pathways based on the initial state and learning from a database of low-energy transition paths.
View Article and Find Full Text PDFJ Sports Sci
January 2025
School of Nursing, University of Pennsylvania, Philadelphia, PA, USA.
Backgrounds: Physical activity is crucial in health promotion. Exercise in groups can strengthen the benefits of exercise itself. However, the scale measuring the motivation for group exercise is scare.
View Article and Find Full Text PDFGenome Med
January 2025
Department of Systems Biology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, 10032, USA.
Background: Despite extensive analysis, the dynamic changes in prostate epithelial cell states during tissue homeostasis as well as tumor initiation and progression have been poorly characterized. However, recent advances in single-cell RNA-sequencing (scRNA-seq) technology have greatly facilitated studies of cell states and plasticity in tissue maintenance and cancer, including in the prostate.
Methods: We have performed meta-analyses of new and previously published scRNA-seq datasets for mouse and human prostate tissues to identify and compare cell populations across datasets in a uniform manner.
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