Results 51 to 60 of about 42,358 (203)
, 2021 This chapter examines collaborative learning as cognition at the small-group unit of analysis, and highlights theoretical questions concerning interrelationships among individual, collective, and cultural cognition. CSCL is a theory- and research-based pedagogical vision of what collaborative learning could be like, thanks to innovative computational ...
Stahl, Gerry, Hakkarainen, Kai
openaire +2 more sources
Revista Electrónica Interuniversitaria de Formación del Profesorado, 2009 Este artículo presenta el modelo receptivo de evaluación de escenarios CSCL centrado en el evaluando (CSCL--EREM); un modelo receptivo concebido como "objeto limítrofe" que puede ser empleado en la evaluación de un amplio abanico de escenarios CSCL.
Iván JORRÍN ABELLÁN
doaj
Regulating secondary phase of Rb‐based aggregates for efficient and stable perovskite solar cells
FlexMat, EarlyView.By introducing RbAc into the precursor solution, the crystallization pathway is optimized, excessive lead iodide is eliminated, grain size increases, and defects are passivated in the perovskite films. The obtained perovskite devices exhibit improved power conversion efficiency and operational stability. Abstract Passivating defects in perovskite films
Weiyuan Chen +7 more
wiley +1 more source
PHASE EQUILIBRIA IN TERNARY SYSTEM CsCl-CsBr-Cs2MoO4 AND THE ELEMENTS OF ITS TERMINATED
Конденсированные среды и межфазные границы, 2017 The methods of physical-chemical analysis is widely used for the development of new compositions of functional materials for various purposes. The alkali halides have found most widespread use in the industry.
Sukharenko Maria A. +3 more
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¿Evaluating or patchworking? An Evaluand-oriented Responsive Evaluation Model [PDF]
Revista Electrónica Interuniversitaria de Formación del Profesorado, 2009 This article presents the CSCL Evaluand-Oriented Responsive Evaluation Model, an evolving evaluation model, conceived as a “boundary object”, to be used in the evaluation of a wide range of CSCL systems.
Iván Jorrín Abellán
doaj
Interaction of 137Cs with Sumedang Clay as Natural Barrier of Radwaste Disposal
Atom Indonesia, 2019 The interaction of 137Cs with Sumedang clay as a natural barrier for radwaste disposal system has been studied. The initial concentration of Cs was 10‑8 M for the experiments on the contact time and the effect of Na and K concentrations on the sorption ...
B. Setiawan, U. Zhafirah, A. Saefumillah
doaj +1 more source
Land Degradation &Development, EarlyView.ABSTRACT Root exudates serve as a key driver for the restoration of soil organic carbon (SOC), particularly in aeolian desertification ecosystems where aboveground litter retention is limited. While Salix cupularis is widely planted as an effective pioneer shrub for ecological rehabilitation on the Qinghai‐Tibet Plateau, how the quantity of its root ...
Ran Xue +9 more
wiley +1 more source
Polymer Engineering &Science, EarlyView.Preparation of sustainable PEG‐based ssPCMs using a PC‐based low‐cos filler and G as a thermal enhancer. PEG 6000 is incorporated into the PC/G matrix through mixing to obtain the shape‐stabilized PCM for thermal energy storage applications. ABSTRACT This study investigates the development of a novel shape‐stabilized phase change material (ssPCM ...
Amira Akrouti +5 more
wiley +1 more source
Je-LKS: Journal of E-Learning and Knowledge Society, 2011 The present paper examines the relationship between assessment, locomotion and attitudes and learning outcomes in a Computer-supported collaborative learning (CSCL) framework.
Alberto Mirisola +2 more
doaj +1 more source
Small, EarlyView.This work presents a bottom‐up strategy for forming meta‐structures built from DNA‐assembled nanoparticle superlattices, establishing a versatile platform for multiscale photonic materials design. Confinement stabilizes non‐equilibrium crystal habits and enables geometry and mode control independent of lattice symmetry.
Alexa M. Wong +8 more
wiley +1 more source