Results 41 to 50 of about 99,668 (282)

A Layered Two‐Dimensional Hydrogen‐Bonded Organic Framework Based on 2,5,8,11‐Tetrakis(4‐Carboxyphenyl)Perylene Diimide: Structural Nature, Optical and Photophysical Properties

Advanced Optical Materials, EarlyView.
A novel hydrogen‐bonded organic framework (HOF) based on perylene diimide (PDI) is synthesized, structurally and spectroscopically characterized. Its photophysical behavior highlights how supramolecular organizations govern the optical properties, including emission from monomers, aggregates, and excimer‐like species. Structural transformations induced
Mario de la Hoz Tomás, Taito Hashimoto, Boiko Cohen, Yuzuki Murata, Kazuki Shiga, Ryota Hanyu, Ryusei Oketani, Norimitsu Tohnai, Ichiro Hisaki, Abderrazzak Douhal   +9 more
wiley   +1 more source

The Relationship of Overweight and Obesity to High Mortality Rates from Liver Cirrhosis in Mexico

Annals of Hepatology, 2004
Background & Aim: Liver cirrhosis continues to be an important cause of death in Mexico. Some data suggest that being overweight is a risk factor for chronic liver disease.
Nahum Méndez-Sánchez, MD, PhD, Claudia P. Sánchez-Castillo, Antonio R. Villa, Herlinda Madrigal, Beatriz Merino, Elsy García, Patricia López, Edgar Pichardo-Ontiveros, Misael Uribe   +8 more
doaj   +1 more source

Bismuth Nanogratings With Narrow Plasmon Resonances for Dynamic Polarized Color Generation and Colorimetric Sensing

Advanced Optical Materials, EarlyView.
Bismuth nanogratings are fabricated by pulsed laser deposition onto the nanostructured silver and polycarbonate surfaces of DVDs. They display spectrally‐narrow plasmon resonances yielding vivid colors, which are strongly sensitive to the polarization of light, angle of incidence, nature of the underlying surface and of the surrounding medium (air or ...
Fernando Chacón‐Sánchez, Fátima Cabello, Marina García Pardo, Emmanuel Haro‐Poniatowski, Rosalía Serna, Johann Toudert   +5 more
wiley   +1 more source

AMBIGUIDADE E OMISSÕES NOS REGRAMENTOS LEGAIS QUE DISCIPLINAM O TRABALHO DO SERVIDOR TÉCNICO DA UNEB [PDF]

, 2015
O presente artigo busca analisar em que medida a estrutura normativa que disciplina os mecanismos de gestão do servidor técnico da Universidade do Estado da Bahia define as atribuições dos cargos de Técnico Universitário e Analista Universitário.
SOUZA, MARIA JALVA XAVIER DA SILVA, MATOS, ROSÂNGELA DA LUZ   +1 more
core  

Electrolyte–Framework Matching in High‐Voltage TEMPO‐COF Cathodes for Lithium Batteries

Advanced Science, EarlyView.
TEMPO‐functionalized covalent organic frameworks are investigated as high‐voltage cathodes for lithium batteries. Screening five electrolyte anions identifies lithium difluoro(oxalato)borate (LiDFOB) as the optimal electrolyte, balancing capacity, rate capability, and cycling stability, while buckypaper electrodes achieve high mass loading (40 mg cm−2)
Marilyn Esclance DMello, Nagaraj Patil, Fanni Fekecs, Sergio Pinilla, Rebeca Marcilla, Manuel Souto   +5 more
wiley   +1 more source

Edificio en Cassarate, Lugano, Suiza: SPBR arquitetos - Ángelo Bucci, João Paulo Meirelles de Faria, 2011

ARQ, 2011
La arquitectura brasileña ha cultivado su cercanía con la ingeniería estructural: a través de voladizos y grandes luces, provee espacios interiores abiertos, aireados y ligeros.
Ángelo Bucci, João Paulo Meirelles de Faria   +1 more
doaj  

Carcinoma de Estirpe Tiroidea en Quistes Tiroglosos. Presentación de 3 Casos

Revista Colombiana de Cirugía, 2021
La aparición de carcinomas de estirpe tiroidea en quistes tiroglosos, que representan un remanente embriológico anormal del tracto tirogloso y a su vez la lesión congénita más común en el cuello, es un fenómeno raro, aunque no sorprendente en virtud de ...
José Félix Patiño, Hernando Harker, Guillermo Supelano, Francisco Cavanzo   +3 more
doaj  

Publicaciones del Departamento

Aragón en la Edad Media, 2016
Listado de publicaciones del Departamento de Historia Medieval, Ciencias y Técnicas Historiográficas y Estudios Árabes e Islámicos de la Universidad de Zaragoza y de los Grupos de Investigación adscritos al mismo.
openaire   +2 more sources

The Preparatory (Anti)Bonding Character of Molecular Orbitals

Advanced Science, EarlyView.
Herein, a concept to qualitatively predict changes in bond dissociation energies upon reduction or oxidation of molecular compounds is introduced. Changing the population of so‐called preparatory molecular orbitals influences how molecular fragments are relaxing after bond cleavage, which is shown for isolated organometallic aluminum compounds as well ...
Jonas O. Wenzel, Johannes Werner, Pascal Weisenburger, Joachim Podlech, Ralf Köppe, Ingo Krossing, Dieter Fenske, Andreas Reiß, Claus Feldmann, Israel Fernández, Frank Breher   +10 more
wiley   +1 more source

Methane Activation by B5+ Toward a CB5H2+ Isomer Containing a Planar Tetracoordinate Carbon Atom

Angewandte Chemie, EarlyView.
Methane activation by B5+ yields CB5H2+ through H2 elimination. Electronic‐structure calculations connect the nascent dehydrogenation product to a low‐lying isomer containing a planar tetracoordinate carbon atom. ABSTRACT Planar tetracoordinate carbon (ptC) motifs have been identified predominantly in the global‐minimum structures of gas‐phase clusters
Qin‐Wei Zhang, Qiang Chen, Fernando Murillo, Filiberto Ortíz‐Chi, Rui‐Nan Yuan, Fernando Martínez‐Villarino, Aura Gómez‐Heredia, Hong Niu, Rui Wei, Jiao‐Jiao Chen, Yan‐Bo Wu, Gabriel Merino   +11 more
wiley   +2 more sources