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Search Results: 1 - 10 of 303264 matches for " Walter J Cuadro "
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Estudio Teórico de las Propiedades Electroconductoras de Oligómeros del Compuesto 4H-[1,2,4]-Triazol Theoretical Study of The Electroconductive Properties of Oligomers 4H-[1,2,4]-Triazole
Walter J Cuadro,Adolfo E Ensuncho,Jesús M López
Información Tecnológica , 2013,
Abstract: Se estudiaron computacionalmente una serie de oligómeros de 2 a 30 anillos del compuesto 4H-[1,2,4]-Triazol al nivel B3LYP/6-31G(d), con el fin de evaluar sus propiedades electro conductoras y contribuir con el dise o de nuevos materiales poliméricos transportadores de electrones (dopado n). La brecha de energía prohibida predicha para el polímero mediante extrapolación binomial de segundo orden, mostró buen acuerdo con los reportes experimentales. Asimismo, los cálculos teóricos mostraron que los procesos de dopado mejoraron notablemente la conducción de los diferentes oligómeros y polímeros (1/n = 0), obteniéndose brechas de energía prohibida de 0.095 eV para el dopado n y 0.017 eV para el dopado p respectivamente. Además, se encontró que las distancias de enlace C-N, N-N y C-C, son fuertemente distorsionadas en los oligómeros cargados, implicando con ello la pérdida parcial de la aromaticidad en el anillo triazólico, probablemente por la formación de estructuras quinoides. A series of oligomers of 2 to 30 rings of the compound 4H-[1,2,4]-triazole, were computationally studied at level 6-31G(d) in order to evaluate their electro-conductive properties and contribute to design of novel electron carrier polymers (n-type). The band-gap predicted for polymer by extrapolation approach adopted a binomial-fitting scheme of second order, showed good agreement with experimental data. Also, the theoretical calculations show that doping processes improved the conduction in oligomers and polymers (1/n = 0), obtaining band-gap of 0.095 eV for n-type and 0.017eV for p-type respectively. It was found that the C-N, N-N and C-C bond lengths in the oligomers are strongly distorted in the charged state, implying the partial loss of aromaticity on triazole ring, probably caused by the formation of quinoid-like structures.
Universalisation of liberal democracy, American exceptionalism and racism
Mariela Cuadro
Transcience : a Journal of Global Studies , 2011,
Abstract: The hegemonic idea of liberal democracy was one of the axes of the most recent interventionist policies of the United States and has its roots in American exceptionalism, understood as a fervent nationalism. Indeed, an idea of superiority underlies it. The paper affirms that it becomes a form of racism that we will label cultural racism utilizing the toolbox of Foucauldian thinking.
Relativized Quantum Physics Generating N-Valued Coulomb Force and Atomic Hydrogen Energy Spectrum  [PDF]
Walter J. Christensen Jr.
Journal of Modern Physics (JMP) , 2015, DOI: 10.4236/jmp.2015.63025
Abstract: Though not well-known, Einstein endeavored much of his life to general-relativize quantum mechanics, (rather than quantizing gravity). Albeit he did not succeed, his legacy lives on. In this paper, we begin with the general relativistic field equations describing flat spacetime, but stimulated by vacuum energy fluctuations. In our precursor paper, after straightforward general relativistic calculations, the resulting covariant and contravariant energy-momentum tensors were identified as n-valued operators describing graviton excitation. From these two operators, we were able to generate all three boson masses (including the Higgs mass) in precise agreement as reported in the 2010 CODATA (NIST); moreover local, as-well-as large-scale, accelerated spacetimes were shown to naturally occur from this general relativized quantum physics approach (RQP). In this paper, applying the same approach, we produce an n-valued Coulombs Force Law leading to the energy spectrum for atomic hydrogen, without assuming quantized atomic radii, velocity and momentum, as Bohr did.
God Is a Porcupine—Brain, Consciousness and Spacetime Physics  [PDF]
Walter J. Christensen Jr.
Journal of Modern Physics (JMP) , 2017, DOI: 10.4236/jmp.2017.88084
Abstract: Whereas the human body requires a vast numbers of atoms to maintain its intricate anatomical functions, we assert that the human brain requires “something extra” to carry out its higher mental and emotional functions. Recently, neuroscientists are beginning to suspect brain cells are not fast enough, or intricate enough, to correlate complex spatiotemporal information into cognitive understanding. They conclude that spacetime fields may be necessary to assist the brain during neurological processing—in much the same way magnetic and electric fields are essential for the propagation of light. This “something extra,” we argue, is spacetime itself—where structures in the brain, called facilitators (somewhat like Descartes pineal gland), have evolved biologically in such a way, so as to be able to store and retrieve spacetime quanta for the formation and generation of consciousness and memory. In this way, cognition is not a thing complete. Rather it is emergent, and accumulates as discretized spacetime quanta in the brain so rapidly, we perceive our own awareness to be continuous, events spontaneous. In this paper, we consider spacetime to be a field (like all quantum fields), which can be excited into quanta particles called gravitons. We then apply this quanta excitation to help explain the brain’s cognitive processes. If the brain has indeed evolved to interact with discretized spacetime, then with the advent of improved functional imaging equipment, we might be able to map detailed correlations between neural processes, conscious experience and spacetime. In so doing, it might be possible to learn more about the fundamental workings of spacetime itself.
En torno a las fuentes iconográficas de Tiepolo para la “Visión Teresiana” del Museo de Bellas Artes de Budapest
Moreno Cuadro, Fernando
Archivo Espa?ol de Arte , 2009,
Abstract: This study deals with the complex question of iconographic sources, with particular focus on Giovanni Battista Tiepolo’s Mary urging St. Teresa to name St. Joseph Protector of the Order in the Szépmüvészeti Múzeum, Budapest. The author reveals not only the demands of the patron and the freedom with which the artist carried them out in this painting, but also identifies the texts and notable graphic sources utilized. These prints were an important vehicle for the diffusion of iconography in Carmelite circles. El estudio aborda la compleja cuestión de la génesis iconográfica centrándose en la pintura de María exhortando a santa Teresa para que nombrara a san José protector de la Orden de Giovanni Battista Tiepolo del Szépmüvészeti Múzeum de Budapest. En el mismo, además de poner de manifiesto las exigencias del comitente y la libertad en la forma de materializarlas por el artista, se identifican los textos que generan la interesante representación teresiana sirviendo de base a notables fuentes grabadas y se constata la utilización de éstas como importante vehículo de difusión de iconografías en el ámbito carmelitano.
Restoration plan for the otter habitat in the Netherlands
Walter J.
IUCN Otter Specialist Group Bulletin , 1990,
Abstract: This paper reviews the provisions of the new otter recovery plan for the Netherlands, launched in July 1989. Threats to otters are reviewed, and mitigation measures specified, along with maximum levels of pollutants. Improvement in water quality is the first aim of the scheme. A principal role is given the the Stichting Otterstation Nederland.
Strong Unique Continuation for Solutions of a -Laplacian Problem
Johnny Cuadro,Gabriel López
International Journal of Mathematics and Mathematical Sciences , 2012, DOI: 10.1155/2012/108671
Abstract: We study the strong unique continuation property for solutions to the quasilinear elliptic equation where , is a smooth bounded domain in , and for in . 1. Introduction and Preliminary Results Let be an open, connected subset in . Consider the Schr?dinger Operator . If , and if vanishes of infinite order at one point (see definitions in Section 3) imply that in , then has the Strong Unique Continuation Property (S.U.C.P). If, on the other hand, in , and in , an open subset of , imply that in , we say that has the Weak Unique Continuation Property (W.U.C.P). In 1939 Carleman [1] showed that has the S.U.C.P whenever . In order to prove this result he introduced a method, the so-called Carleman estimates, which has permeated almost all the subsequent works in the subject. For instance, Jerison and Kenig [2] showed that if and , then has the S.U.C.P.; Fabes et al. in [3] gave a positive answer for a radial potential to Simon's conjecture, which stated that for a potential in the Stummel-Kato class and then has the S.U.C.P. Other results were obtained by de Figueiredo and Gossez, but for Linear Elliptic Operators in the case , [4]. Also, Loulit extended this property to [5]. More recently, Hadi and Tsouli [6] proved Strong Unique Continuation Property for the -Laplacian in the case and constant. Equations involving variable exponent growth conditions have been intensively discussed in the last decade. A strong motivation in the study of such kind of problems is due to the fact that they can model with high accuracy various phenomena which arise from the study of elastic mechanics, electrorheological fluids, or image restoration; for information on modeling physical phenomena by equations involving -growth condition we refer to [7–12]. The understanding of such physical models was facilitated by the development of variable Lebesgue and Sobolev spaces, and , where is a real-valued function. Variable exponent Lebesgue spaces appeared for the first time in literature as early as 1931 in an article by Orlicz [13]. The spaces are special cases of Orlicz spaces originated by Nakano [14] and developed by Musielak and Orlicz [15, 16], where if and only if for a suitable . For some interesting results on elliptic equation involving variable exponent growth conditions see [17–19]. We point out the presence of the -Laplace operator. This is a natural extension of the -Laplace operator, with positive constant. However, such generalizations are not trivial since the -Laplace operator possesses a more complicated structure than -Laplace operator; for example, it is
Acercamiento antropológico del concepto de salud mental en los aymaras del sector Isluga
Isabel Cuadro Leiva Valdés
Revista Cultura y Religión , 2008,
Abstract: During a field trip in the Isluga sector, where a major part of the Aymara population of the Tarapacá Region originated, concepts and ritual healings were identified. Western medicine would see this asa mental illness. This observation is done through Anthropology.
Unique continuation for solutions of p(x)-Laplacian equations
Johnny Cuadro,Gabriel Lopez G.
Electronic Journal of Differential Equations , 2012,
Abstract: We study the unique continuation property for solutions to the quasilinear elliptic equation $$ hbox{div}(| abla u|^{p(x)-2} abla u) +V(x)|u|^{p(x)-2}u=0quad hbox{in }Omega, $$ where $Omega$ is a smooth bounded domain in $mathbb{R}^N$ and $1
Rhabdits (Rhabditis) Freitasi/ sp. n. e Rhabditis (Rhabditis) Costai/ sp. n (Nematoda-Rhabditidae) isolados de otite bovina
Martins Júnior, Walter;
Memórias do Instituto Oswaldo Cruz , 1985, DOI: 10.1590/S0074-02761985000100002
Abstract: the author described two new species of nematoda-rhabditidae collected from the auditory meatus of catle with ear infection: rhabditis (rhabditis) freitasi sp.n. from formosa county in the state of goiás and rhabditis (rhabditis) costai sp.n. from sert?ozinho county in the state of s?o paulo.
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