Results 61 to 70 of about 2,450,551 (302)

Consideraciones sobre sociedad, ciencia y tecnología en el trabajo educativo

open access: yesPesquisa e Debate em Educação, 2018
Se desarrollan reflexiones analítico-metodológicas que reconstruyen cualitativamente el vínculo entre pasado y presente en relación dialéctica ciencia natural y social, tecnología en relación con las matemáticas.
Oscar Holguín Villamil, Daniel Mill
doaj  

Atividades experimentais no ensino de ciências: limites e possibilidades

open access: yes, 2016
Neste artigo propomos uma revisao das diversas vertentes teoricas que avaliam as possibilidades e os limites da utilizacao do Trabalho Experimental/Laboratorial nas aulas de Ciencias.
João Manoel da Silva Malheiro
semanticscholar   +1 more source

Rheumatoid Arthritis and Coronary Artery Calcium Progression: A Case Cohort Analysis From ELSA‐Brasil

open access: yesArthritis Care &Research, EarlyView.
Objective To investigate the association between rheumatoid arthritis (RA) and coronary artery calcium (CAC) prevalence, incidence, and progression over four years in adults without prior cardiovascular disease. Methods A case‐cohort study within the Brazilian Longitudinal Study of Adult Health (ELSA‐Brasil) included 585 participants (86 patients with ...
Patrícia Fonseca Estrada   +7 more
wiley   +1 more source

Editorial

open access: yesLiberabit, 2017
La edición de revistas científicas es un proceso que se distingue por exigencias elevadas y suma competitividad, como lo evidencian las crecientes tasas de rechazo de los manuscritos sometidos al arbitraje.
Manuel Fernández-Arata
doaj   +2 more sources

ALFABETIZAÇÃO CIENTÍFICA, ENSINO POR INVESTIGAÇÃO E ARGUMENTAÇÃO: RELAÇÕES ENTRE CIÊNCIAS DA NATUREZA E ESCOLA

open access: yes, 2015
El objetivo de este trabajo es discutir y buscar relaciones entre las ideas que rodean la alfabetizacion cientifica, la ensenanza por investigacion y la argumentacion en situaciones de ensenanza de las ciencias de la naturaleza.
L. Sasseron
semanticscholar   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez   +5 more
wiley   +1 more source

Historia, filosofía y didáctica de las ciencias: aportes para la formación del profesorado de ciencias

open access: yes, 2016
El libro Historia, Filosofia y Didactica de las Ciencias: Contribuciones a la Formacion del profesorado de ciencias, de los autores Merce Izquierdo Aymerich, Alvaro Garcia Martinez, Mario Quintanilla Gatica y Agustin Aduriz Bravo, aborda un tema ...
M. I. Aymerich   +3 more
semanticscholar   +1 more source

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

open access: yesAdvanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni   +7 more
wiley   +1 more source

Técnicas de análisis en estudios observacionales en ciencias del deporte

open access: yes, 2015
En este trabajo introductorio del numero monografico Analisis de datos en estudios observacionales de Ciencias del Deporte (1): Avances tecnologicos y analiticos, se realiza –desde la logica del metodo cientifico y sus distintas fases- un trazado de las ...
M. T. Argilaga, A. H. Mendo
semanticscholar   +1 more source

Multimodal Data‐Driven Microstructure Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang   +4 more
wiley   +1 more source

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