Results 111 to 120 of about 2,221,788 (282)

Civic education, key to democratic consolidation [PDF]

open access: yesCivilizar, 2012
Assuming the importance for Chile to deepen and improve its democratic system, this article aims first to recognize the status of citizen progressive distancing of political affairs, especially in the youngest segment, based on data provided by various ...
Roberto Mardones Arévalo
doaj  

La formación vía satélite ante las demandas de la formación ocupacional [PDF]

open access: yes, 1994
Este artículo habla de las posibilidades que hoy en día aporta la formación vía satélite ante lo que la formación ocupacional demanda. Se analizan diversos aspectos y dimensiones a considerar de la formación ocupacional y se recogen algunos proyectos ...
Bermejo Campos, Blas   +4 more
core  

Cationic Fluorinated Polyphosphazenes for Efficient Decontamination of Anionic Pollutants from Wastewater

open access: yesMacromolecular Chemistry and Physics, Volume 226, Issue 15, August 4, 2025.
This work presents a convenient synthesis of cationic fluorinated copolyphosphazenes via the quaternization of 3‐(diethylamino)phenolate (3DEAP) side groups with methyl iodide. The resulting water‐soluble copolymers, featuring tunable hydrophobic (CF3) and hydrophilic ammonium moieties, self‐assemble into large compound micelles (LCMs) or vesicles in ...
Francesco Lanero   +7 more
wiley   +1 more source

Effect of confinement on physical inactivity in child and juvenile populations/Efecto del confinamiento sobre la inactividad física en poblaciones infanto-juveniles

open access: yesPodium, 2022
Introduction: An outbreak of disease due to a variety of coronavirus that affects humans began in December 2019 in Wuhan, China, where as of January 2022 it has caused more than five and a half million deaths. As the COVID-19 pandemic continues to unfold
Ángel Da Luz Pereira   +4 more
doaj  

Immobilization of Enzyme–Polymer Hybrids and Nanozymes Through Electrostatic Interactions: Toward Multicatalytic Microreactors with Controlled Nanoarchitecture

open access: yesSmall Science, Volume 5, Issue 8, August 2025.
A modular hybrid membrane is constructed via a layer‐by‐layer strategy, integrating glucose oxidase/horseradish peroxidase or glucose oxidase/nanozyme‐loaded microreactors within alternating polyelectrolyte layers on a calcium carbonate core. This hierarchical design enables precise spatial confinement of catalytic units, facilitating efficient cascade
Aitor Ontoria   +7 more
wiley   +1 more source

Caracterización mineralógica y estratigráfica de las formaciones neógenas del borde sur de la cuenca del Tajo (Comarca de la Sagra). [PDF]

open access: yes, 1990
El estudio mineralógico y químico de los materiales neógenos del borde sur de la cuenca del Tajo ha permitido establecer cinco unidades litoestratigráficas, a las que se ha atribuido el rango de formación.
Brell, J.M.   +2 more
core  

Time Series of the Canary Current Derived From One Year of Pressure Inverted Echo Sounder (PIES) Data

open access: yesJournal of Geophysical Research: Oceans, Volume 130, Issue 8, August 2025.
Abstract Five pressure inverted echo sounders (PIES) have been deployed north of the Canary Islands at a nominal latitude of 29°N for 1 year to estimate a time series of volume transport of the Canary Current (CC) and the Lanzarote passage (LP) using the gravest empirical method (GEM).
A. Hernández‐Guerra   +2 more
wiley   +1 more source

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