Results 111 to 120 of about 116,651 (290)

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

open access: yesAdvanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr   +7 more
wiley   +1 more source

Association between antibiotic pressure and the risk of colonization/infection by multidrug-resistant Acinetobacter baumannii complex: a time series analysis. [PDF]

open access: yesRev Esp Quimioter, 2021
Huertas Vaquero M   +6 more
europepmc   +1 more source

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

open access: yesAdvanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao   +5 more
wiley   +1 more source

Series temporales y previsiones [PDF]

open access: yes, 2013
Mari Albareda   +2 more
openaire   +1 more source

The past and future of terrorism research [PDF]

open access: yes
Este artículo destaca cinco áreas donde el análisis económico del terrorismo ha tenido mayor relevancia en las políticas de los últimos 30 años. Estas áreas son la evaluación de la efectividad de las acciones contra el terrorismo, la identificación de ...
Todd Sandler
core  

Aproximación al comportamiento intraanual de las temperaturas diarias en el suroeste de la península ibérica [PDF]

open access: yes, 2003
Con base en los datos de las series temporales de temperaturas diarias, máximas y mínimas, de los observatorios de la región suroccidental española se realiza el análisis del comportamiento intraanual de las mismas.
García Barrón, Leoncio   +1 more
core   +1 more source

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

open access: yesAdvanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

¿Fomentan las democracias conductas de procura de rentas? [PDF]

open access: yes
(Disponible en idioma inglés únicamente) Empleando datos históricos institucionales objetivos, ponemos a prueba el vínculo existente entre el alcance, la duración y la transparencia en las democracias y las conductas de procura de rentas, empleando ...
Alberto Chong, César Calderón
core  

Near‐Infrared Organic Photovoltaic Electrodes for Subretinal Neurostimulation

open access: yesAdvanced Functional Materials, EarlyView.
Organic photovoltaic electrodes based on the D18:Y6 blend enable precise and light‐controlled activation of retinal ganglion cells in a degenerating retina. NIR Light‐driven activation of retinal ganglion cells, tunable stimulation parameters, and biocompatibility with human retinal organoids highlight their potential for next‐generation prosthetics ...
Andrea Corna   +10 more
wiley   +1 more source

Análisis de series temporales financieras

open access: yes, 2016
RESUMEN: Los constantes avances producidos en el campo de la econometría han llevado al desarrollo de métodos adaptativos que permiten modelar la volatilidad de los distintos activos que integran los mercados financieros. Gran parte de los métodos existentes a día de hoy parten de la metodología Box-Jenkins, cuyos autores desarrollan una serie de ...
openaire   +1 more source

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