21,845 research outputs found
Reversible Loss of Bernal Stacking during the Deformation of Few-Layer Graphene in Nanocomposites
No full textThe deformation of nanocomposites containing graphene flakes with different numbers of layers has been investigated with the use of Raman spectroscopy. It has been found that there is a shift of the 2D band to lower wavenumber and that the rate of band shift per unit strain tends to decrease as the number of graphene layers increases. It has been demonstrated that band broadening takes place during tensile deformation for mono- and bi-layer graphene but that band narrowing occurs when the number of graphene layers is more than two. It is also found that the characteristic asymmetric shape of the 2D Raman band for the graphene with three or more layers changes to a symmetrical shape above about 0.4% strain and that it reverts to an asymmetric shape on unloading. This change in Raman band shape and width has been interpreted as being due to a reversible loss of Bernal stacking in the few-layer graphene during deformation. It has been shown that the elastic strain energy released from the unloading of the inner graphene layers in the few-layer material (0.2 meV/atom) is similar to the accepted value of the stacking fault energies of graphite and few layer graphene. It is further shown that this loss of Bernal stacking can be accommodated by the formation of arrays of partial dislocations and stacking faults on the basal plane. The effect of the reversible loss of Bernal stacking upon the electronic structure of few-layer graphene and possibility of using it to modify the electronic structure of few-layer graphene is discussed
Feuerborniella veracruzana Ibanez-Bernal 2004
No full text<i>Feuerborniella veracruzana</i> Ibáñez-Bernal, 2004 <p> <i>veracruzana</i> Ibáñez-Bernal, 2004a: 2. Type locality: Mexico, Veracruz, Tlilapan, Cueva Matzinga.</p> <p> <b>General distributio</b> n. Mexico.</p> <p> <b>Distribution in Mexic</b> o. Veracruz (Ibáñez-Bernal 2004a).</p>Published as part of <i>Ibáñez-Bernal, Sergio & Durán-Luz, Juana, 2022, An actualized catalogue of the Psychodidae (Diptera) of Mexico and their known distribution by state, pp. 347-408 in Zootaxa 5104 (3)</i> on page 380, DOI: 10.11646/zootaxa.5104.3.2, <a href="http://zenodo.org/record/6332122">http://zenodo.org/record/6332122</a>
Arisemus imeldae Ibanez-Bernal & Suarez-Landa 2017
No full text<i>Arisemus imeldae</i> Ibáñez-Bernal & Suárez-Landa, 2017 <p> <i>imeldae</i> Ibáñez-Bernal & Suárez-Landa, 2017: 18 (as <i>Arisemus</i>). Type locality: Mexico, Veracruz, municipality of Xalapa, Chavarrillo.</p> <p> <b>General distribution.</b> Mexico (Ibáñez-Bernal & Suárez-Landa 2017).</p> <p> <b>Distribution in Mexico</b>. Veracruz (only the type locality) (Ibáñez-Bernal & Suárez-Landa 2017).</p>Published as part of <i>Ibáñez-Bernal, Sergio & Durán-Luz, Juana, 2022, An actualized catalogue of the Psychodidae (Diptera) of Mexico and their known distribution by state, pp. 347-408 in Zootaxa 5104 (3)</i> on page 375, DOI: 10.11646/zootaxa.5104.3.2, <a href="http://zenodo.org/record/6332122">http://zenodo.org/record/6332122</a>
Micropygomyia (Coquillettimyia) nahua Ibanez-Bernal, Garcia-Torres & Vasquez-Marquez 2017
No full text<i>Micropygomyia</i> (<i>Coquillettimyia</i>) <i>nahua</i> Ibáñez-Bernal, García-Torres & Vásquez-Márquez, 2017 <p> <i>nahua</i> Ibáñez-Bernal, García-Torres & Vásquez-Márquez, 2017: 169 (as <i>Micropygomyia</i> (<i>Coquillettimyia</i>)). Type locality: Mexico, Veracruz, municipality of Naolinco, Tenampa-Chivería (about 10 km south of Naolinco city by road; 19°36’42.10” N 96°51’39.96” W, 900 m asl). Galati (2021, classification, keys)</p> <p> <b>General distribution.</b> Mexico (Ibáñez-Bernal <i>et al</i>. 2017).</p> <p> <b>Distribution in Mexico.</b> Veracruz (only the type locality) (Ibáñez-Bernal <i>et al</i>. 2017).</p>Published as part of <i>Ibáñez-Bernal, Sergio & Durán-Luz, Juana, 2022, An actualized catalogue of the Psychodidae (Diptera) of Mexico and their known distribution by state, pp. 347-408 in Zootaxa 5104 (3)</i> on page 370, DOI: 10.11646/zootaxa.5104.3.2, <a href="http://zenodo.org/record/6332122">http://zenodo.org/record/6332122</a>
Design of the electrical installation for The Casa Bernal
No full text[CA] La Casa Bernal és una casa senyorial situada en el Carrer Poeta Llorente de La Pobla de Vallbona (València) i que actualment està sent restaurada per l'Ajuntament com a part del projecte: "Vestim la Casa Bernal". Aquest edifici té especial importància per pertànyer a la família Bernal i per ser la residència d¿estiu del poeta valencià Teodor Llorente Olivares. L'objectiu d'aquest TFG serà el disseny d'una instal·laciò elèctrica per a aquesta com a part del procés de rehabilitació de la Casa. Dins del projecte s'inclouràn entre altres una introducció amb els conceptes i consideracions bàsiques a l'hora de dissenyar la instal·lació, així com tots els càlculs necessaris per a la justificació de les eleccions fetes tenint en compte les necessitats del projecte. La instal·lació elèctrica es dissenyarà d'acord amb la normativa vigent i tenint en compte totes les mesures de protecció necesàries per a garantir la integritat de la instal·lació i la seguretat de les persones en tot moment. El projecte consistirà en una memòria, plec de condicions, plànols i el pressupost final que permetrà justificar la viabilitat econòmica.Cànoves-Femenia I Garcia, J. (2023). Disseny de la instal·lació elèctrica de La Casa Bernal. Universitat Politècnica de València. https://riunet.upv.es/handle/10251/195017TFG
Alepia aculeocauda Duran-Luz, Ibanez-Bernal & Sandoval-Ruiz 2018
No full text<i>Alepia aculeocauda</i> Durán-Luz, Ibáñez-Bernal & Sandoval-Ruiz, 2018 <p> <i>aculeocauda</i> Durán-Luz, Ibáñez-Bernal & Sandoval-Ruiz, 2018: 548 (as <i>Alepia</i>). Type locality: Mexico, Puebla, Jolalpan, Rancho El Salado.</p> <p> <b>General distribution</b>. Mexico (Durán-Luz <i>et al</i>. 2018).</p> <p> <b>Distribution in Mexico</b>. Puebla (Durán-Luz <i>et al</i>. 2018).</p>Published as part of <i>Ibáñez-Bernal, Sergio & Durán-Luz, Juana, 2022, An actualized catalogue of the Psychodidae (Diptera) of Mexico and their known distribution by state, pp. 347-408 in Zootaxa 5104 (3)</i> on page 374, DOI: 10.11646/zootaxa.5104.3.2, <a href="http://zenodo.org/record/6332122">http://zenodo.org/record/6332122</a>
Alepia clavicula Duran-Luz, Ibanez-Bernal & Sandoval-Ruiz 2018
No full text<i>Alepia clavicula</i> Durán-Luz, Ibáñez-Bernal & Sandoval-Ruiz, 2018 <p> <i>clavicula</i> Durán-Luz, Ibáñez-Bernal & Sandoval-Ruiz, 2018: 551 (as <i>Alepia</i>). Type locality: Mexico, Puebla, Jolalpan, Rancho El Salado.</p> <p> <b>General distribution</b>. Mexico (Durán-Luz <i>et al</i>. 2018).</p> <p> <b>Distribution in Mexico</b>. Puebla (Durán-Luz <i>et al</i>. 2018).</p>Published as part of <i>Ibáñez-Bernal, Sergio & Durán-Luz, Juana, 2022, An actualized catalogue of the Psychodidae (Diptera) of Mexico and their known distribution by state, pp. 347-408 in Zootaxa 5104 (3)</i> on page 375, DOI: 10.11646/zootaxa.5104.3.2, <a href="http://zenodo.org/record/6332122">http://zenodo.org/record/6332122</a>
Métricas de autor Teresita De Lourdes Bernal Romero
No full textInforme de las métricas de autor de la Dra Teresita De Lourdes Bernal Romero de las publicaciones indexadas en Google Académico cuyo objetivo es entregar un insumo para el fortalecimiento de las capacidades y potencialidades de los autores de la Universidad Santo Tomás en el posicionamiento y visibilidad de sus publicacionesReport of the author metrics of Teresita De Lourdes Bernal Romero of the publications indexed in Google Scholar whose objective is to provide an input for the strengthening of the capacities and potentialities of the authors of the Santo Tomás University in the positioning and visibility of their publications.http://unidadinvestigacion.usta.edu.c
Bernal and the genesis of structural biology.
No full textI was invited to participate in this Symposium a month or so before the event. At
that time however, I knew little about J D Bernal. I vaguely remembered a brief conversation
on the topic over a decade ago with Professor Vittorio Luzzati as we ambled around the gardens
at the Palace of Varsailles. Vittorio likely knew Bernal through his friend Rosalind Franklin
who worked with Bernal at Birbeck College. But beyond that I knew nothing about the man or
his science. And so it was most fortunate that Andrew Brown?s book J D Bernal: The Sage of
Science [1] appeared in 2005 and I was able to call on it. Indeed, much of the material included
in this chapter is based on that source and on Dorothy Hodgkin?s biographic memoir of J D
Bernal [2], her postgraduate supervisor.
Given that this chapter is to be published in a Physics journal I thought it appropriate to
provide some background to the theme of my presentation, structural biology. Accordingly, I
will begin with an introduction to proteins, one of structural biology?s central characters, and
to which Bernal devoted much energy and attention. How the molecular structure of a protein
determines its activity and function will then be described. Bernal?s major contribution in
this area was to X-ray crystallography, the primary method by which a protein?s structure is
determined. The method, and aspects of its development, will be described. I will also make
reference to some of Bernal?s additional contributions in related fields. Finally, Vincent Casey,
the symposium organizer, asked that I comment on how structural biology might impact on
society. I will attempt to address that at the close of my presentation
Experiencias de las/os docentes y asistentes de la educación en torno a la inclusión de las/os estudiantes inmigrantes en la comunidad educativa, de los establecimientos educacionales Escuela Alemania y Liceo n°2 Mixto Polivalente Matilde Brandau de Ross de la comuna de Valparaíso.
No full textEl presente trabajo de investigación es desarrollado por las estudiantes de Trabajo Social de la Universidad de Valparaíso, Camila Bernal y Bárbara Morales, en el marco de la asignatura Proyecto de Título I y Proyecto de Título II, para optar al grado académico de licenciada en Trabajo Social y el título profesional de Trabajadora Social.
Este proceso investigativo cuenta con la guía metodológica del Profesor Dr. Mauricio Ureta Bernal y con el apoyo de las profesionales Paulina Vera y Allison Paredes, Trabajadoras Sociales de las instituciones, quienes serán el nexo con la población objetivo de esta investigación.
La investigación se enmarca al alero del Servicio Local de Educación Pública (SLEP) de la comuna de Valparaíso, la “Escuela Alemania” y el “Liceo N°2 Mixto Polivalente Matilde Brandau de Ross”.
El proyecto de título tiene por nombre “Experiencias de las/os docentes y asistentes de la educación en torno la inclusión de las/os estudiantes inmigrantes, dentro del espacio educativo, en las instituciones "Escuela Alemania" y "Liceo n2 Mixto Polivalente Matilde Brandau de Ross" de la comuna de Valparaíso.” desarrollada en la región de Valparaíso, Chile
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