Results 91 to 100 of about 629,639 (193)

Cryo‐EM structure of GH43 β‐Xylosidase from Enterobacter cloacae provides insights into substrate specificity and the role of an auxiliary domain in enzymatic activity

The FEBS Journal, EarlyView.
Xylan, the second most abundant plant cell wall polysaccharide, is degraded by β‐xylanases and β‐xylosidases. Here, we present the 2.65 Å cryo‐EM structure of Enterobacter cloacae β‐xylosidase (EcXyl43, GH43) and the 2.4 Å X‐ray structure of its inactive F507A mutant.
Lorenzo Briganti, Andre Schutzer Godoy, Caio Cesar Mello Capetti, Rafaela Sachetto Fernandes, Vanessa O. A. Pellegrini, Ornella M. Ontañon, Eleonora Campos, Rodrigo V. Portugal, Igor Polikarpov   +8 more
wiley   +1 more source

Um nanosegundo-luz na sua mão

, 2016
Ensino Médio::FísicaO experimento mostra como construir a barra de medida e explica que ano-luz é uma unidade de comprimento que corresponde à distância percorrida pela luz no vácuo em um ano.
Mateus, Alfredo
core   +2 more sources

Adaptações fisiológicas: luz e nutrientes

, 2014
Ensino Médio::BiologiaEnsino Fundamental::Séries Finais::Ciências NaturaisApresenta animação que trata dos organismos fotossintetizantes e sua dependência de luz e ...
Tavares, Cláudia
core  

Explanations for Cross‐Sectional Return Anomalies: Evidence on the IVOL Puzzle

Financial Management, EarlyView.
ABSTRACT Considering the time‐series dimension alongside the cross‐sectional dimension helps to almost entirely account for the idiosyncratic volatility (IVOL) puzzle. Based on a purely cross‐sectional approach, the previous literature shows that numerous candidate theories collectively fail to explain the puzzling finding that high‐IVOL stocks ...
Fabian Hollstein, Leon Kowalke, Marcel Prokopczuk   +2 more
wiley   +1 more source

Triple Oxygen Isotope Compositions of Isotopic Reference Waters: Implications for VSMOW‐Scale and VSMOW–SLAP‐Scale Δ′17O Calibration

Geostandards and Geoanalytical Research, EarlyView.
Key Points Triple oxygen isotope ratios of two primary (VSMOW, SLAP) and twelve secondary water isotopic reference materials were precisely measured using BrF5 fluorination‐IRMS. The measured Δ'17OVSMOW value for SLAP (34 ± 6 per meg) demonstrates that VSMOW‐SLAP normalisation ensures interlaboratory comparability, but introduces systematic offsets for
Ryoji Tanaka, Andreas Pack, Tyler B. Coplen   +2 more
wiley   +1 more source

A influência da luz natural na avaliação da eficiência energética de edifícios contemporâneos de escritórios em Florianópolis/SC [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Arquitetura e Urbanismo, Florianópolis, 2009Muitas edificações desperdiçam relevantes oportunidades de poupar energia, por não considerar ...
Didoné, Evelise Leite
core  

Self‐Perceived Competence and Self‐Efficacy Following a Sequential Preclinical Endodontic Curriculum Combining Haptic Virtual Reality Simulation and Extracted Natural Teeth for Access Cavity Preparation: A Prospective Cohort Study

International Endodontic Journal, EarlyView.
ABSTRACT Aim To evaluate changes in undergraduate dental students' self‐perceived competence and post‐training self‐efficacy in endodontic access cavity preparation following implementation of a revised preclinical course incorporating haptic virtual reality simulation (HVRS) prior to training on extracted human teeth (NT). Methodology This prospective
João Filipe Brochado Martins, Annemarie Baaij, Beliz Ozel   +2 more
wiley   +1 more source

Monitorización de la ventilación no invasiva [PDF]

Revista SOCAMPAR, 2017
El seguimiento de eficacia en la ventilación no invasiva (VNI) se basa, por lo general, en los datos recogidos de la his- toria clínica sobre la presencia de síntomas de hipoventilación nocturna, los controles gasométricos diurnos y la pul- sioximetría ...
Casado ME, Vargas R, Jiménez V, Peirón MJ, Peñas JM   +4 more
doaj  

A luz vermelha como sinalizador do ambiente

, 2019
Apresenta animação que mostra a influência da luz na germinação de brotos de feijão. Mostra também como a luz interfere na dinâmica celular das plantasEnsino Fundamental Final::Ciências NaturaisEnsino Médio ...
Carvalho, Rodrigo, Teixeira, Dirceu
core  

Blood Cell Counts and the Duffy Null Phenotype: Beyond Neutropenia

International Journal of Laboratory Hematology, EarlyView.
ABSTRACT The absence of Duffy antigen expression on red blood cells, caused by a single nucleotide polymorphism in the DARC/ACKR1 gene, confers protection against malaria and is associated with lower absolute neutrophil counts (ANC) in some studied populations.
Elvira Deolinda R. P. Velloso, Andreza Oliveira dos Santos, Carla Luana Dinardo, Carolina Bonet Bub, Leandro Dinalli Santos, Mauren Fernanda Moller dos Santos, João Carlos de Campos Guerra, Denise dos Anjos Laurentis de Sousa Campos, Monica Juliana Vieira, Fábio Julio da Luz, Alfredo Mendrone‐Junior, Rosana M. Cosentino Penteado   +11 more
wiley   +1 more source