Results 61 to 70 of about 506,236 (280)

A de‐novo Approach Towards Divergent [3+2π/σ] Photocycloadditions of Nitrones via Assembly‐Controlled Kinetic Electron Transfer Gating

open access: yesAngewandte Chemie, EarlyView.
A metal‐free photocatalytic platform converts nitrones into 4‐isoxazolines and oxa–aza–bicycloheptanes through divergent [3+2π/σ] cycloadditions. Assembly‐controlled kinetic electron transfer gating dictates substrate activation, enabling selective reactivity beyond thermodynamic expectations.
Nayan Saha   +6 more
wiley   +2 more sources

Aberrations‐Corrected Ratiometric Parameters and PLQYs for Upconversion Thermometry in Hexagonal NaYF4:Yb3+,Er3+ and NaYF4:Yb3+,Tm3+ in Micro and Nanoscale Phosphors Using Novel Integrating Sphere Setup

open access: yesAdvanced Optical Materials, EarlyView.
Each optical system introduces aberrations in the reading of photoluminescence, which makes the signal dependant on the lab equipment. Here, a calibrated system is used to obtain the PLQYs and ratiometric parameters of popular upconverters to be used in thermometry.
Adilet Zhakeyev   +5 more
wiley   +1 more source

Carlos Campos

open access: yesVitruvio: International Journal of Architectural Technology and Sustainability, 2022
He has been an architect since 1978, settling himself as an independent professional with the firm that bears his name. He has carried out professional works for the public administration, in the City Council of Valencia, within the Urban Projects Office,
Luis Manuel Palmero Iglesias
doaj   +1 more source

Crossover From Excitonic to Bulk Emission in Metal Halide Perovskite Nanocomposites

open access: yesAdvanced Optical Materials, EarlyView.
A transition from excitonic to free‐charge recombination is uncovered in perovskite nanocomposites as a function of nanostructure size using PLQY(R, F) mapping as a function of excitation fluence (F) and repetition rate (R). These findings demonstrate that PLQY(R, F) mapping serves as a powerful and non‐invasive tool to extract quantitative information
Miriam Minguez‐Avellan   +5 more
wiley   +1 more source

A Mechanical sp2‐Jail for C60 Fullerene

open access: yesAngewandte Chemie, EarlyView.
A rigid bisporphyrin receptor with an exceptionally compact 3D cavity functions as a molecular “mechanical jail”, tightly enclosing C60 fullerene. Near‐perfect shape complementarity affords ultrahigh binding affinity while imposing a large kinetic barrier for guest exchange, rendering encapsulation effectively irreversible under ambient conditions ...
A. Priscila Gia   +8 more
wiley   +2 more sources

Risk assessment and monitoring programme of nitrates through vegetables in the Region of Valencia (Spain).

open access: yesFood and Chemical Toxicology, 2017
This study was carried out to determine current levels of nitrate in vegetables marketed in the Region of Valencia (Spain) and to estimate the toxicological risk associated with their intake. A total of 533 samples of seven vegetable species were studied.
L. Quijano   +5 more
semanticscholar   +1 more source

Post‐Deposition Photonic Curing Treatment for Improved Sb2Se3 Photovoltaic Performance

open access: yesAdvanced Optical Materials, EarlyView.
Millisecond‐scale photonic curing overcomes the open‐circuit voltage deficit in Sb2Se3 solar cells by transforming the rear interface. This ultrafast treatment enhances crystallographic texture and smooths the absorber surface, suppressing interfacial recombination and boosting power conversion efficiency to 8.2%.
Udari Wijesinghe   +5 more
wiley   +1 more source

IV Plan de Igualdad de la Universitat de València

open access: yes
El IV Pla d'Igualtat (2024-2028) respon al compromís polític de la Universitat de València amb l'aplicació efectiva del principi d'igualtat d'oportunitats entre dones i homes, i aprofundeix en les polítiques iniciades fa més de quinze anys, quan es va ...
Universitat de València
core   +1 more source

Underground Signals: The Ecological Power of Root Volatiles

open access: yesAdvanced Science, EarlyView.
Root volatiles mediate rhizosphere chemical communication, shaping interactions among plants, microbes, herbivores, and natural enemies. Their production, transport, and perception underpin ecological adaptation, multitrophic interactions, and plant resilience, offering opportunities for sustainable crop protection, resilient agroecosystems, and ...
Xueyao Cao   +31 more
wiley   +1 more source

IV Pla d'Igualtat de la Universitat de València

open access: yes
El IV Plan de Igualdad (2024-2028) responde al compromiso político de la Universitat de València con la aplicación efectiva del principio de igualdad de oportunidades entre mujeres y hombres, y profundiza en las políticas iniciadas hace más de quince ...
Universitat de València
core   +1 more source

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