Faria, Manoel Severim de, Campos, J. F. M. de (Joaquim Francisco Monteiro), Barbosa, José,
Statement of responsibility transposed from position preceding subtitle. Book.
0000 - Gale Group | The Making of Modern World
Francisco José García‐Peñalvo,
El editorial de este primer número del volumen 17, correspondiente al año 2016, se dedica a las relaciones universidad-empresa-sociedad en lo que se conoce como la Tercera Misión de la Universidad o como la misión de la transferencia de conocimiento.
Tópico(s): Social impacts of COVID-19
2016 - Ediciones Universidad de Salamanca | Education in the Knowledge Society (EKS)
Faria, Manoel Severim de, Campos, J. F. M. de (Joaquim Francisco Monteiro), Barbosa, José,
Statement of responsibility transposed from position preceding subtitle. Book.
0000 - Gale Group | The Making of Modern World
Produção Nacional
Revisado por pares
Eduardo de Albuquerque Brocchi, Rogério Navarro Correia de Siqueira, Marcelo Motta, Francisco José Moura, Ivan Guillermo Solórzano-Naranjo,
Different materials have been synthesized by alternative routes: nitrates thermal decomposition to prepare oxide or co-formed oxides and reduction by hydrogen or graphite to obtain mixed oxides, composites or alloys. These chemical-based synthesis routes are described and thermodynamics studies and kinetics data are presented to support its feasibility. In addition, selective reduction reactions have been applied to successfully produce metal/ceramic composites, and alloys. Structural characterization ...
Tópico(s): Nanomaterials for catalytic reactions
2013 - Elsevier BV | Materials Chemistry and Physics
Francisco José Ruiz de Mendoza Ibáñez,
This paper investigates the notion of low-level situational cognitive model, its role in linguistic description and its possible computational treatment in the knowledge base FunGramKB. Low-level situational models are exploited metonymically to produce situation-based implicatures. When such inferences become stably associated with a formal pattern, they give rise to implicational constructions. Other kinds of construction make use of different kinds of cognitive model. For example, argument-structure ...
Tópico(s): Topic Modeling
2014 - John Benjamins Publishing Company | Studies in language companion series
M. Isabel Sarró, Diego A. Moreno, Eduardo Chicote, Petra I. Lorenzo, Ana M. García, Francisco José Collado Montero,
Abstract The objective of this study was to investigate the biofilm formation on three different types of austenitic stainless steel (UNS S30400, S30466 and S31600) submerged in a spent nuclear fuel pool. The presence of microorganisms in coupons was characterised using standard culture microbiological methods, microscopic techniques (epifluorescence microscopy and scanning electron microscopy), and molecular biology techniques (denaturing gradient gel electrophoresis and sequencing fragments of 16S ...
Tópico(s): Hydrogen embrittlement and corrosion behaviors in metals
2003 - Wiley | Materials and Corrosion
Produção Nacional
Revisado por pares
G. Vicentini, Francisco José Santos LIMA,
Compounds with composition Ln(pic)3·3(2-picNO)·H2O (Ln La - Lu, Y, pic = picrate) were synthesized and characterized by microanalytical procedures, X-ray powder patterns, electrolytic conductance data, IR and visible absorption (Nd3+) and emission (Eu3+) spectra. A C3ν symmetry and a monocapped octahedral geometry were attributed to the complex species.
Tópico(s): Luminescence Properties of Advanced Materials
1993 - Elsevier BV | Journal of Alloys and Compounds
Caroline De Smedt, Francisco José Ávila Ferrer, Karen Leus, Pieter Spanoghe,
To prevent the contamination of groundwater and surface water by pesticides, appropriate measures should be taken to treat the contaminated water before discharge. Zeolites seem to be a promising material to adsorb pesticides. This paper deals with the removal of mobile pesticides from water on different types of zeolites. Experiments were performed to understand the adsorption mechanisms of bentazon, clopyralid, imidacloprid, isoproturon and metalaxyl-m on zeolites and to determine the most efficient ...
Tópico(s): Mesoporous Materials and Catalysis
2015 - SAGE Publishing | Adsorption Science & Technology
Francisco J. Díaz, José de León,
*Department of Biostatistics, The University of Kansas Medical Center, Kansas City, Kansas; †University of Kentucky Mental Health Research Center at Eastern State Hospital, Lexington, Kentucky; and ‡Psychiatry and Neurosciences Research Group (CTS-549), Institute of Neurosciences, University of Granada, Granada, Spain Supported by Frontiers: The Heartland Institute for Clinical and Translational Research CTSA UL1TR000001 (awarded to the University of Kansas Medical Center). The contents are solely the ...
Tópico(s): Statistical Methods in Clinical Trials
2013 - Lippincott Williams & Wilkins | Therapeutic Drug Monitoring
Carmen M. Casado, Isabel Cuadrado, Moisés Morán, Beatriz Alonso, Francisco Lobete, José Losada,
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of the First Redox-Active Organometallic Polymers Containing Cyclosiloxanes as FrameworksCarmen M. Casado, Isabel Cuadrado, Moises Moran, Beatriz Alonso, Francisco Lobete, and Jose LosadaCite this: Organometallics 1995, 14, 6, 2618–2620Publication Date (Print):June 1, 1995Publication History Published online1 May 2002Published inissue 1 June 1995https://pubs.acs.org/doi/10.1021/om00006a003https://doi.org/10.1021/om00006a003research-articleACS ...
Tópico(s): Synthesis and characterization of novel inorganic/organometallic compounds
1995 - American Chemical Society | Organometallics
Produção Nacional
Revisado por pares
Fernando Barbosa, Samuel S. de Souza, Francisco José Krug,
A flow injection hydride generation manifold was coupled to a tungsten coil electrothermal atomizer for in situ collection of selenium. This strategy exploits selenium hydride trapping onto a double-layer coiled tungsten filament coated with rhodium. The hydride flows through a capillary quartz tube (20 mm long × 1.3 mm od × 0.5 mm id) positioned 1 mm from the modified tungsten coil surface. The capillary can be either inserted in the tip of the autosampler arm by replacing the last section of the PTFE ...
Tópico(s): Radioactive element chemistry and processing
2002 - Royal Society of Chemistry | Journal of Analytical Atomic Spectrometry
Produção Nacional
Revisado por pares
M.I. Silva, A. Manuela Gonçalves, Wângeska Alves Vieira Lopes, Mirelle Tainá Vieira Lima, Celme Torres Ferreira da Costa, Marta Paris, Paulo Renato Alves Firmino, Francisco José de Paula Filho,
Globally speaking, groundwater is the predominant source of water for populations living in arid and semiarid regions. The tools used to assess the quality of this resource contribute to the water security of the populations that depend on it. This study evaluated the quality of groundwater sampled from 22 monitored wells in the Araripe Sedimentary Basin (ASB), located in the Brazilian semiarid region. We used probability curves to identify the critical variables and a regional Water Quality Index ( ...
Tópico(s): Groundwater and Isotope Geochemistry
2021 - Elsevier BV | Journal of Hydrology
Silvia Valero, Francisco Climent, Rafael José Esteban de la Rosa,
The banking sector has begun a process of digital transformation that is changing the way financial products and services are sold. This transformation is a consequence of the growing demand for digital channels by some sectors of the population, the progress of new technologies and the banks’ need to improve efficiency after the economic crisis. The emergence of innovative financial technology (fintech) startups in the banking sector has been the lever initiating this digital transformation. Technology ...
Tópico(s): Blockchain Technology Applications and Security
2020 - | Journal of Business Accounting and Finance Perspectives
Juan Alfredo Montero Delgado, Francisco Javier Merino Alonso, Emilio Monte‐Boquet, José Francisco Ávila de Tomás, José María Cepeda Díez,
Resumen La evolucion de Internet y de la tecnologia digital en la sociedad y en los sectores productivos ha planteado en los sistemas sanitarios la necesidad de una transformacion digital que aporte mejoras en calidad y eficiencia. A pesar de los avances tecnologicos y de la creciente demanda social para incorporarlos en la practica clinica diaria, el grado de implementacion de la innovacion digital en el sector sanitario es todavia escaso y lento, en parte debido a la brecha digital. Por ello, ...
Tópico(s): Technology in Education and Healthcare
2019 - Elsevier BV | Educación Médica
Produção Nacional
Revisado por pares
Jonnys Paz Castro, Deise Morone Perígolo, Maria Lúcia Bianchi, Fábio Akira Mori, Alessandra de Souza Fonseca, Isabel Cristina Nogueira Alves, Francisco José de Vasconcellos,
O processo de armazenamento de bebidas destiladas em barris de madeira é uma prática que visa à melhoria das características sensoriais da bebida, tais como cor, aroma e sabor. A qualidade da bebida destilada armazenada nesses barris depende de características da madeira como densidade, permeabilidade, composição química e anatomia, além do tipo de tratamento térmico dado à madeira durante a confecção dos barris. O Brasil possui uma grande diversidade florestal, principalmente no norte do país, ...
Tópico(s): Phytochemistry Medicinal Plant Applications
2015 - UNIVERSIDADE FEDERAL DE LAVRAS | CERNE
Produção Nacional
Revisado por pares
Paul J. Somerfield, Verônica Gomes Fonsêca-Genevois, Andrea Carmelita Rodrigues, Francisco José Victor de Castro, Giovanni dos Santos,
Intertidal meiofauna were collected from various locations around the Pina Basin, Recife, Brazil. The basin is a shallow restricted environment which receives large quantities of untreated sewage, and is therefore polluted, eutrophic and hypoxic. The meiofauna were identified to major taxa (nematodes, copepods, polychaetes, oligochaetes, turbellarians, gastrotrichs, rotifers, ostracods, acari, and juvenile amphipods and bivalves) and counted. Subsamples of nematodes were extracted and identified ...
Tópico(s): Coastal wetland ecosystem dynamics
2003 - Cambridge University Press | Journal of the Marine Biological Association of the United Kingdom
Produção Nacional
Revisado por pares
Michael Strugale, Sidnei Pires Rostirolla, Fernando Mancini, Carlos Vieira Portela Filho, Francisco José Fonseca Ferreira, Rafael Corrêa de Freitas,
The integration of structural analyses of outcrops, aerial photographs, satellite images, aeromagnetometric data, and digital terrain models can establish the structural framework and paleostress trends related to the evolution of Ponta Grossa Arch, one of the most important structures of the Paraná Basin in southern Brazil. In the study area, the central-northern region of Paraná State, Brazil, the arch crosses outcropping areas of the Pirambóia, Botucatu, and Serra Geral Formations (São Bento Group, ...
Tópico(s): Geophysical and Geoelectrical Methods
2007 - Elsevier BV | Journal of South American Earth Sciences
Produção Nacional
Revisado por pares
Miguel Jafelicci, Marian Rosaly Davolos, Francisco José dos Santos, Sandro José de Andrade,
Tópico(s): Analytical Chemistry and Chromatography
1999 - Elsevier BV | Journal of Non-Crystalline Solids
Francisco José Francés García,
El estudio de la participación juvenil supone un reto investigador, por cuanto las prácticas colectivas de los jóvenes se contextualizan en el marco de la participación ciudadana adulta, pero presentando elementos y potencialidades propias del a condición juvenil. El artículo pretende asumir el vínculo entre reproducción del orden social y producción de nuevos órdenes en las prácticas sociales de los jóvenes, para cuestionar los enfoques teóricos que plantean una desafección pública de la juventud ...
Tópico(s): Latin American socio-political dynamics
2008 - Instituto Interuniversitario de Desarrollo Social y Paz, Universidad de Alicante | OBETS Revista de Ciencias Sociales
Produção Nacional
Revisado por pares
Leonardo Santos de Barros, Otávio Augusto Chaves, Edgar Schaeffer, Carlos Maurício R. Sant’Anna, Aurélio B.B. Ferreira, Darí Cesarin-Sobrinho, Francisco Assis da Silva, José Carlos Netto‐Ferreira,
By using spectroscopic methods (fluorescence and circular dichroism), the interactions of three di-fluorinated chalcones (CH23F, CH25F and CH35F) with bovine serum albumin (BSA) in a PBS buffer solution (pH = 7.4), at 288 K, 293 K and 298 K, were probed. Molecular docking was performed to evaluate the main protein cavity for the BSA/chalcone interactions. Fluorescence quenching of the albumin by the di-fluorinated chalcones follow a combination of static and dynamic quenching mechanisms. The Stern-Volmer ...
Tópico(s): Photochemistry and Electron Transfer Studies
2016 - Elsevier BV | Journal of Fluorine Chemistry
Raúl Fuentes-Azcatl, Francisco Noé Mendoza Ambrosio, José Alejandre,
In a recent work, Fuentes and Alejandre (2014) found that for TIP4P models there is a dipole moment of minimum density at 240 K and that the Lennard-Jones parameters can be adjusted to match the experimental dielectric constant at 300 K and the temperature of maximum density, respectively. The same procedure is used in this work to re-parameterize the simple point charge (SPC) model keeping the original geometry. The new model fails to reproduce the experimental self-diffusion coefficient and shear ...
Tópico(s): Theoretical and Computational Physics
2014 - Elsevier BV | Physica A Statistical Mechanics and its Applications
C. Álvarez-Rúa, Santiago García‐Granda, Alfredo Ballesteros, Francisco González‐Bobes, José M. González,
The title compound, C10H10IN2+·BF4−, or IPy2BF4, is found to crystallize in the monoclinic crystal system. The asymmetric unit contains two tetrafluoroborate anions, one independent IPy2 cation and two half-cations; for the latter the I atoms lie on centres of symmetry. A slight deviation from planarity is observed in the crystallographically independent IPy2 cation.
Tópico(s): Crystal structures of chemical compounds
2002 - International Union of Crystallography | Acta Crystallographica Section E Structure Reports Online
José Elguero, Carlos Jaime, Mercedes Marcos, Enrique Meléndez, Francisco Sánchez‐Ferrando, José Luís Serrano,
The molecular geometry of benzalazine derivatives was studied by spectroscopic and semiempirical MO (MNDO, CNDO/2) methods. The existence of a strong intramolecular H-bond (7–10 kcal mol−1) was determined by 1H NMR spectroscopy in molecules having a hydroxy group in the ortho position with reference to the diazine central bridge. A study of the H-bonds using the MNDO method proved to be unsatisfactory, whereas the results obtained by the CNDO/2 method were in excellent agreement with experimental ...
Tópico(s): Organic and Molecular Conductors Research
1987 - Elsevier BV | Journal of Molecular Structure THEOCHEM
Boaventura F. Reis, H. Bergamin Fo, Elias A.G. Zagatto, Francisco José Krug,
A flow injection procedure is described for the Spectrophotometric determination of aluminium in plant and soil material with eriochrome cyanine R. This system utilizes merging zones and sequential addition of pulsed reagents. A high degree of sample dispersion and pulsed neutralization reagent allow precise pH control; acid plant digests can therefore be analysed without pre-treatment. Iron(III) interference is avoided with ascorbic acid, and phosphate interference is negligible. The sampling rate ...
Tópico(s): Clay minerals and soil interactions
1979 - Elsevier BV | Analytica Chimica Acta
P. González‐Tello, Fernando Camacho, G. Blázquez, Francisco José Alarcón,
The liquid−liquid equilibrium for the ternary systems PEG1000 + MgSO4 + H2O, PEG3350 + MgSO4 + H2O and PEG8000 + MgSO4 + H2O has been obtained experimentally. The results are fitted to a three-parameter equation which fits the results to within ±2%. Tie lines have also been measured, along with the viscosity and density in both phases. The tie-line compositions have been fitted to Bancroft's potential equation.
Tópico(s): Crystallization and Solubility Studies
1996 - American Chemical Society | Journal of Chemical & Engineering Data
María Goretti Alonso de Castro, Francisco José García‐Peñalvo,
<p>La Unión Europea y países asociados están trabajando en proyectos europeos que aportan información relevante sobre las metodologías utilizadas a nivel educativo a través de diferentes programas, incluido el Programa Erasmus+. Estos proyectos son la fuente de inspiración para la investigación que se está realizando de cara a obtener una guía metodológica para el uso exitoso de las tecnologías digitales en la educación en la mejora del aprendizaje. Este artículo se centra en cómo se ha abordado ...
Tópico(s): Technology in Education and Healthcare
2022 - | Campus Virtuales
Francisco José García‐Peñalvo,
Learning analytics has become a reference area in the field of Learning Technologies as the mixture of different technical and methodological approaches in the capture, treatment and representation of educational data for later use in decision-making processes. With approximately ten years of development, it can be considered that learning analytics have abandoned their stage of dispersion and are heading towards a state of maturity that will position them as a fundamental piece in educational practice ...
Tópico(s): Educational Innovations and Technology
2020 - Springer Nature | Lecture notes in educational technology
Produção Nacional
Revisado por pares
Roberta A.A. Fagundes, Renata M.C.R. de Souza, Francisco José A. Cysneiros,
This paper presents a robust regression model that deals with cases that have interval-valued outliers in the input data set. Each interval of the input data is represented by its range and midpoint and the fitting to interval-valued data is not sensible in the presence of midpoint and/or range outliers on the interval response. The predictions of the lower and upper bounds of new intervals are performed and simulation studies are carried out to validate these predictions. Two applications with ...
Tópico(s): Fuzzy Systems and Optimization
2012 - Elsevier BV | Engineering Applications of Artificial Intelligence
Produção Nacional
Revisado por pares
Délcio Dias Marques, Rogério Antônio Sartori, Telma L. G. Lemos, Luciana Lucas Machado, João Sammy Nery de Souza, Francisco José Queiroz Monte,
Qualitative and quantitative analyses of the volatile constituents from resin of Protium heptaphyllum (Aubl.) Marchand subsp. ulei (Swat) Daly (PHU), and Protium heptaphyllum (Aubl.) Marchand subsp. heptaphyllum (PHH), Burseraceae were performed using GC-MS and GC-FID. The resins were collected around the city of Cruzeiro do Sul, state of Acre, Brazil. Essential oils from the two subspecies were extracted by hydrodistillation with a yield of 8.6% (PHU) and 11.3% (PHH); the main components were terpinolene ( ...
Tópico(s): Traditional and Medicinal Uses of Annonaceae
2010 - INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA | Acta Amazonica
Produção Nacional
Revisado por pares
Marco A. O. Domingues, Renata M.C.R. de Souza, Francisco José A. Cysneiros,
This paper introduces a new linear regression method for interval valued-data. The method is based on the symmetrical linear regression methodology such that the prediction of the lower and upper bounds of the interval value of the dependent variable is not damaged by the presence of interval-valued data outliers. The method considers mid-points and ranges of the interval values assumed by the variables in the learning set. The prediction of the boundaries of an interval is accomplished through ...
Tópico(s): Fuzzy Systems and Optimization
2010 - Elsevier BV | Pattern Recognition Letters