Results 11 to 20 of about 7,575 (270)

The Third‐Generation Magnetic Super‐Stable Mineralizer: Complete Removal and Separation of Multiple Heavy Metal Pollutants

open access: yesAdvanced Science, EarlyView.
The 3rd‐generation magnetic super‐stable mineralizer M‐MgAl‐700 features a core‐shell structure, strong superparamagnetism, large surface area, and abundant oxygen defects. It achieves exceptional Cd(II) and As(V) mineralization capacities, reducing both pollutants in co‐contaminated water and soil to meet national standards.
Haoran Wang   +9 more
wiley   +1 more source

Joves i ficció televisiva: representacions i efectes

open access: yesAnàlisi: Quaderns de Comunicació i Cultura, 2010
Research on young people and television fiction is a field of study rather unexplored. The attention devoted to children and other television genres, such as information, have been keys of the relative lack of interest that is observed.
Charo Lacalle
doaj   +1 more source

Breaking the Durability–Power Trade‐Off: Boron‐Directed Faceted O3 Cathodes for High‐Rate Sodium‐Ion Batteries

open access: yesAdvanced Energy Materials, EarlyView.
Boron‐oxide‐assisted particle engineering stabilizes O3‐type layered cathodes for sodium‐ion batteries by mitigating phase transitions and lattice strain. Acting as flux and structural modifier, boron forms submicron hexagonal platelets with (003) facets and expanded Na‐layer spacing, enabling rapid Na⁺ diffusion and mechanical resilience.
Tengfei Song   +9 more
wiley   +1 more source

Gènere, cos i sexualitat. La joventut, l’experiència i l’ús de l’espai públic urbà

open access: yesPapers, 2012
L’ús i l’experiència de l’espai públic per part de la gent jove estan fortament determinats pel gènere. L’objectiu d’aquest article és veure com aquesta intersecció entre l’edat i el gènere provoca una sèrie de pràctiques i de comportaments determinats ...
Maria Rodó-de-Zárate
doaj   +1 more source

A Highly Hydrophilic Air Electrode With Water‐Induced Surface Reconstruction for Efficient Reversible Protonic Ceramic Cell at Low Water Partial Pressures

open access: yesAdvanced Energy Materials, EarlyView.
This work demonstrates a new strategy for reversible protonic ceramic cells (R‐PCCs). By developing highly hydrophilic oxides, efficient operation is achieved under low water vapor pressures while maintaining high performance and stability. This approach addresses the challenge of hydrogen production in freshwater‐scarce regions.
Nai Shi   +15 more
wiley   +1 more source

Youtubers en llengua catalana: estudi quantitatiu i qualitatiu

open access: yesÍtaca, 2018
Amb l’arribada d’Internet hem vist nàixer una nova tipologia de creadors de continguts a les xarxes socials. Aquest article posa el focus en els youtubers que es comuniquen en llengua catalana a través de la plataforma de vídeos de YouTube. A continuació,
Maria Lluïsa Iglesias Nieto
doaj   +1 more source

A Closed‐Loop Direct Recycling Process for Prussian White From Scrap and End‐of‐Life Sodium‐Ion Batteries

open access: yesAdvanced Energy Materials, EarlyView.
A closed‐loop direct recycling route for Prussian White sodium‐ion battery cathodes is demonstrated. Ice‐stripped scrap and end‐of‐life electrodes are regenerated via low‐temperature aqueous resodiation (80°C), restoring sodium content, Fe2+ redox chemistry, and structural integrity.
Subha Samanta   +8 more
wiley   +1 more source

Percepció dels riscos a la xarxa per els adolescents a Espanya: usos problemàtics i formes de control

open access: yesAnàlisi: Quaderns de Comunicació i Cultura, 2013
El propòsit d'aquest estudi és analitzar, des d'una perspectiva qualitativa, les percepcions dels menors entorn dels riscos que suposa l'ús d'Internet i les xarxes socials a Espanya.
Esther Martínez Pastor   +2 more
doaj   +1 more source

Exposició virtual sobre l'assetjament en infants i joves al CRAI Biblioteca d'Economia i Empresa. (Febrer 2021)

open access: yes, 2021
Material elaborat pel CRAI Biblioteca d'Economia i Empresa.Imatge utilitzada per fer publicitat de novetats del CRAI de la Universitat de Barcelona - Vitrina Febrer 2021.Exposició Virtual febrer 2021.Aquest últim any de pandèmia i confinament, l’augment ...
Universitat de Barcelona. CRAI
core  

Magnetoelastic Cell Monitoring System for Evaluating the Effects of Surface Chemistry on the Performance of Mesenchymal Stem Cell Growth

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT The recent clinical adoption of cell therapies has increased the need for more efficient, robust, and reproducible manufacturing technologies. Human mesenchymal stromal cells (hMSCs), a major component of the cell and immunotherapeutic market, remain challenging to manufacture at scale because they require surface attachment and are highly ...
William S. Skinner   +7 more
wiley   +1 more source

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