Results 61 to 70 of about 6,288 (254)

L'Aprenentatge de la química amb sensors: casos pràctics, utilitat i valoració [PDF]

open access: yes, 2008
Una de les noves tecnologies de la informació i la comunicació a les aules de ciències és la constituïda pels equips de captació automàtica de dades, que permeten visualitzar en temps real els gràfics del fenomen que s'està experimentant.
Tortosa Moreno, Montserrat
core  

From Mechanics to Electronics: Influence of ALD Interlayers on the Multiaxial Electro‐Mechanical Behavior of Metal–Oxide Bilayers

open access: yesAdvanced Functional Materials, EarlyView.
Ultrathin AlOxHy interlayers between aluminum films and polymer substrates significantly improve electro‐mechanical properties of flexible thin film systems. By precisely controlling interlayer thickness using atomic layer deposition, this study identifies an optimal interlayer thickness of 5–10 nm that enhances ductility and delays cracking.
Johanna Byloff   +9 more
wiley   +1 more source

Exciton‐Polaritons in Nanoscale Metal‐Organic Frameworks: A Platform for the Reversible Modulation of Strong Light‐Matter Coupling via the Chemical Environment

open access: yesAdvanced Functional Materials, EarlyView.
Strong exciton‐photon coupling is achieved by integrating porphyrin ligand‐based MOF nanoparticles in optical cavities, as evidenced by pronounced polariton branch anticrossing. The porous nature of the resonator enables precise, reversible tuning via vapor pressure, unlocking unprecedented chemical‐environment controlled dynamic polaritonic platforms ...
Beatriz de Sola‐Báez   +7 more
wiley   +1 more source

Nano‐ and Micro‐Sized Solid Materials Used as Antiviral Agents

open access: yesAdvanced Functional Materials, EarlyView.
Due to the rise of viral infections in humans and possible viral outbreaks, the use of nano‐ or micro‐sized materials as antiviral agents is rapidly increasing. This review explores their antiviral properties against RNA and DNA viruses, either as a prevention or a treatment tool, by delving into their mechanisms of action and how to properly assess ...
Orfeas‐Evangelos Plastiras   +6 more
wiley   +1 more source

Timing of gene expression in a cell‐fate decision system

open access: yesMolecular Systems Biology, 2018
During development, morphogens provide extracellular cues allowing cells to select a specific fate by inducing complex transcriptional programs. The mating pathway in budding yeast offers simplified settings to understand this process. Pheromone secreted
Delphine Aymoz   +6 more
doaj   +1 more source

Novel·les a la classe de ciències : una nova mirada a les narratives de ficció

open access: yesCiències, 2018
En aquest article es presenta la proposta d’usar novel·les a la classe de ciències com a context tot descrivint-ne les seves potencialitats a nivell teòric. A més a més, es fa una proposta d’anàlisi en la que es consideren els aspectes científics,
Isabel Pau Custodio
doaj   +1 more source

La competència d'ús de proves científiques : quines dimensions es promouen a les activitats de l'aula de ciències? [PDF]

open access: yes, 2013
L'ús de proves científiques és la competència científica que obté pitjors resultats en les proves per a alumnes, com és el cas de les proves internacionals PISA, però la menys treballada pels professors de ciències.
Couso, Digna, Garrido Espeja, Anna
core   +2 more sources

High Energy Density Asymmetric Aqueous Supercapacitor Based on a 2D Manganese Carbide as a Positive Electrode

open access: yesAdvanced Functional Materials, EarlyView.
A circular route, involving upcycling of waste surgical masks, affords a Mn‐based layered carbide with porosity, redox activity and low work function. These features enable its effective operation as positive supercapacitor electrode in an aqueous asymmetric supercapacitor delivering 213 Wh L−1 energy density.
Debabrata Nandi   +7 more
wiley   +1 more source

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