Results 71 to 80 of about 205,845 (215)

Critical chain length and superconductivity emergence in oxygen-equalized pairs of YBa2Cu3O6.30

open access: yes, 2000
The oxygen-order dependent emergence of superconductivity in YBa2Cu3O6+x is studied, for the first time in a comparative way, on pair samples having the same oxygen content and thermal history, but different Cu(1)Ox chain arrangements deriving from their
Allodi, G.   +5 more
core   +1 more source

A Review of Vagus Nerve Stimulation for Disease: Comprehensive Theory and Evidence for Mechanisms of Action

open access: yesComprehensive Physiology, Volume 16, Issue 2, April 2026.
Vagus nerve stimulation (VNS) effects span central and peripheral organ systems through diverse mechanistic pathways. This comprehensive review provides a unified synthesis of these mechanisms across neurological, cardiovascular, immunological, metabolic, and gastrointestinal domains, filling a critical gap and serving as a foundational resource for ...
Yifeng Bu   +11 more
wiley   +1 more source

On the lexicographic representation of numbers

open access: yes, 2015
It is proven that, contrarily to the common belief, the notion of zero is not necessary for having positional representations of numbers. Namely, for any positive integer $k$, a positional representation with the symbols for $1, 2, \ldots, k$ is given ...
Manca, Vincenzo
core  

Look Who Is Talking: Extracellular Vesicles as Mediators of Intercellular and Interorgan Communication

open access: yesComprehensive Physiology, Volume 16, Issue 2, April 2026.
Extracellular vesicles (EVs) mediate intercellular and interorgan communication during both physiological and pathological conditions. EVs include exosomes, ectosomes, and apoptotic bodies and contain bioactive molecules. EVs are delivered to proximal cells or can travel in bodily fluids and reach distant organs, where they trigger a response from the ...
Michela Saviana   +4 more
wiley   +1 more source

Organic and perovskite solar cells for space applications

open access: yes, 2018
For almost sixty years, solar energy for space applications has relied on inorganic photovoltaics, evolving from solar cells made of single crystalline silicon to triple junctions based on germanium and III-V alloys.
Cardinaletti, Ilaria   +15 more
core   +1 more source

Social Sustainability in Chemical Engineering: Concepts, Methodologies, Challenges, and Integration Strategies

open access: yesSustainable Development, Volume 34, Issue 2, Page 2503-2519, April 2026.
ABSTRACT Chemical engineering faces an increasing imperative to integrate sustainability principles beyond traditional economic and environmental considerations. The social dimension—encompassing impacts on human well‐being, equity, community health, labor practices, and ethical governance—represents a critical yet often underdeveloped pillar within ...
José M. R. C. A. Santos
wiley   +1 more source

Educació bilingüe a la Comunitat Valenciana: èxits i fracassos

open access: yesRevista de Llengua i Dret - Journal of Language and Law, 2000
L’ensenyament en valencià a la Comunitat Valenciana ha augmentat des de l’aprovació de la Llei d’ús i ensenyament del valencià (1983), però encara hi ha molts problemes que dificulten el compliment de la legislació vigent.
Manuel Triano López
doaj  

Technology Catching-up and the Role of Institutions [PDF]

open access: yes
The aim of the paper is to investigate the role played by differences in Institutional Quality on the process of technology catch-up across countries. Empirical evidence shows how countries endowed with better institutions are those experiencing higher ...
Fabio Manca
core  

Manca d'infermeres assistencials

open access: yes, 1991
Màster en Administració i Gestió en Cures d'Infermeria, Escola Universitarias Santa Madrona, Universitat de Barcelona.
Cabanes i Duran, Concepció   +1 more
openaire   +1 more source

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