Results 11 to 20 of about 340 (243)

Young children's perspectives of time: New directions for co‐constructing understandings of quality in ECEC

open access: yesBritish Educational Research Journal, EarlyView., 2023
Abstract Children's relationship with time in preschools is an under‐researched area. Young children rarely know how to measure time using a clock, but their experiences of time may contribute to understanding children's well‐being and debates about quality in preschools.
Kristín Dýrfjörð   +3 more
wiley   +1 more source

High‐Spatiotemporal‐Resolution Transparent Thermoelectric Temperature Sensor Arrays Reveal Temperature‐Dependent Windows for Reversible Photothermal Neuromodulation

open access: yesAdvanced Functional Materials, EarlyView.
Thermoelectric temperature sensors are developed that directly measure heat changes during optical‐based neural stimulation with millisecond precision. The sensors reveal the temperature windows for safe reversible neural modulation: 1.4–4.5 °C enables reversible neural inhibition, while temperatures above 6.1 °C cause permanent thermal damage.
Junhee Lee   +9 more
wiley   +1 more source

Tissue Engineered Human Elastic Cartilage From Primary Auricular Chondrocytes for Ear Reconstruction

open access: yesAdvanced Functional Materials, EarlyView.
Despite over three decades of research, no tissue‐engineered solution for auricular reconstruction in microtia patients has reached clinical translation. The key challenge lies in generating functional elastic cartilage ex vivo. Here, we integrate synergistic cell‐biomaterial strategies to engineer auricular grafts with mechanical and histological ...
Philipp Fisch   +13 more
wiley   +1 more source

Dual‐Functional Polyphosphoesters for Gene Delivery: Synergistic Effects of Guanidinium and Hydrophobic Side Chains in Degradable Polymers

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents guanidinium‐ and indole‐functionalized polyphosphoesters as degradable, non‐viral gene delivery vectors. Through precise tuning of charge density and hydrophobicity, these polymers form stable polyplexes with low toxicity. Remarkably, minor structural changes yield up to 200‐fold differences in transfection efficiency, highlighting ...
Markus Kötzsche   +8 more
wiley   +1 more source

Light Switchable Ionic Conductivity of Arylazopyrazole Modified Polysiloxanes

open access: yesAdvanced Materials Technologies, EarlyView.
We present a polysiloxane functionalized with a novel arylazopyrazole dye that undergoes reversible photoisomerization. Upon lithium bis(trifluoromethanesulfonyl)imide addition and UV irradiation, the polymer exhibits a shift in tan(d) toward higher frequencies and enhanced ionic conductivity.
Malte S. Beccard   +7 more
wiley   +1 more source

Com han canviat BiD i les revistes espanyoles de documentació en els darrers vint anys?

open access: yesBiD: Textos Universitaris de Biblioteconomia i Documentació, 2018
Es presenta l'evolució històrica de la revista BiD establint tres grans etapes en el seu recorregut: creació (1998–2003), consolidació (2004–2012), creixement (2013– ).
Abadal, Ernest
doaj   +1 more source

Amido‐Amine Co(II) Precursor‐Based Atomic/Molecular Layer Deposition Processes for Cobalt‐Organic Thin Films and Their Thermal Conversion to CoO Thin Films

open access: yesAdvanced Materials Technologies, EarlyView.
Three new atomic/molecular layer deposition processes are developed for Co‐organic thin films using a promising all‐nitrogen‐coordinated cobalt precursor. The study examines film growth, reaction mechanisms, chemical stability, and decomposition pathways of the resulting films through extensive characterization techniques and DFT calculations ...
Topias Jussila   +9 more
wiley   +1 more source

Distribució de bases de dades en el web amb Knosys Internet

open access: yesBiD: Textos Universitaris de Biblioteconomia i Documentació, 2000
S'introdueixen breument els sistemes de distribució de bases de dades documentals via web exposant els seus elements, processos i exemples. Seguidament, es mostra l'anàlisi de 'Knosys Internet', programa CGI distribuidor de bases de dades al web creades ...
Abadal, Ernest, Martínez Rivas, Raúl
doaj  

Quantificar-se per viure a través de les dades : les dades massives (big data) aplicades a l'àmbit personal

open access: yesBiD: Textos Universitaris de Biblioteconomia i Documentació, 2015
Objectius: aquest article reflexiona sobre el sorgiment dels fenòmens lifelogging i quantified self com una forma de viure a través de les dades personals generades pel mateix usuari.
Giones Valls, Aina, Giones, Ferran
doaj   +1 more source

Actualització consistent de bases de dades deductives

open access: yes, 2023
En aquesta tesi, proposem un nou mètode per a l'actualització consistent de bases de dades deductives. Donada una petició d'actualització, aquest mètode tradueix de forma automàtica aquesta petició en el conjunt de totes les possibles formes d'actualitzar la base de dades extensional de forma que la petició sigui satisfeta i que no es violi cap ...
openaire   +4 more sources

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