Results 111 to 120 of about 2,720,872 (300)
Ligand engineering enables precise control of emission in linear Cu(I) complexes by tuning donor–acceptor interactions between electron‐rich amines and π‐accepting mesoionic carbenes. Naphthyl‐substituted carbenes promote locally excited phosphorescence with vibronic structure, whereas electron‐rich amides combined with electron‐poor carbenes favor ...
Felix León +7 more
wiley +1 more source
A new luminescence mechanism in Cs2NaInCl₆ is revealed through spontaneously formed In3+→In+ centers and Er3+/Yb3+/Sb3+ doping. Tunable visible, near‐infrared, downconversion, and upconversion emissions are demonstrated, while DFT calculations explain the electronic structure.
Inna A. Ivashchenko +10 more
wiley +1 more source
Marginalia. The Literary Independence of Spanish America
This article discusses some of the characteristic problems and issues of the so-called “literary independence” of Spanish America in the light of its political emancipation from Spain. This topic goes beyond the temporal framework or the periodization of
Juan Guillermo Gómez García
doaj
World trade in medicinal plants from Spanish America, 1717-1815. [PDF]
Gänger S.
europepmc +1 more source
Bev Chapman's Miss Wheelchair America van
A photograph of the Miss Wheelchair America van with "Bev Chapman Miss Wheel Chair 1977" written on the ...
Miss Wheelchair America Pageant.
core
Here we use a template‐assisted self‐assembly approach of metal colloids onto metal films to produce hybrid plasmonic metasurfaces that integrate nanoparticle‐on‐mirror cavities with periodic metal colloid arrays. The resulting coupling between gap plasmons and grating‐coupled surface plasmon polaritons enables programmable hybrid modes with tailored ...
Afroditi Koutsogianni +6 more
wiley +1 more source
Sobre Murdo J. MacLeod, Spanish Central America
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Jesús Monjarás-Ruiz
doaj
1975 Miss Wheelchair America Pageant awards stage
This photograph shows the empty auditorium and awards stage for the 1974-75 Miss Wheelchair America ...
Miss Wheelchair America Pageant.
core
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
Perspectives of The Development of Spanish
Spanish as Castellano spoken in Spain or Spanish spoken in Latin America... What can we say about this language? Do we really mean the language and its variety or do we speak about different languages? Are there perspectives of the development of Spanish
N F Mikheeva
doaj

