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Search Results: 1 - 10 of 1495 matches for " Villa "
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A Basis for Causal Scattering Waves, Relativistic Diffraction in Time Functions  [PDF]
Salvador Godoy, Karen Villa
Journal of Modern Physics (JMP) , 2016, DOI: 10.4236/jmp.2016.710107
Abstract: Relativistic diffraction in time wave functions can be used as a basis for causal scattering waves. We derive such exact wave function for a beam of Dirac and Klein-Gordon particles. The transient Dirac spinors are expressed in terms of integral defined functions which are the relativistic equivalent of the Fresnel integrals. When plotted versus time the exact relativistic densities show transient oscillations which resemble a diffraction pattern. The Dirac and Klein-Gordon time oscillations look different, hence relativistic diffraction in time depends strongly on the particle spin.
La cátedra de estudios Afrocolombianos: una posibilidad de descolonización del lenguaje en el Caribe seco Colombiano
Villa,Ernell; Villa,Wilmer;
Nómadas , 2011,
Abstract: an acknowledgment to those projects carried out in a silenced area inside an excluded region is made in this paper. the dry caribbean is a place in the colombian territory where some black communities live since the decolonization developing different actions to settle life. the text tackles the pedagogical sense of the cátedra de estudios afrocolombianos from devaluated cultural practices. the historical, territorial, juridical, educative, and organizational contextualization is followed by the emphasis in the necessity of creating a cultural production policy based on the black communities' life.
Relativism: A conceptual analysis
Eidos , 2010,
Abstract: in this paper, first, i will try to give a conceptual definition of relativism, with the aim of singling out the basic elements common to the most relevant relativist conceptions. i will qualify as "relativistic" all conceptions in which all or a relevant part of its criteria and beliefs necessarily depend on a given context. secondly, i will deal with some critical observations against relativism. from this point of view, a problem arises from the fact that many relativists would like to have the chance of expressing some objective judgments. lastly, i will propose a relativistic conception: one that doesn't incorporate absolutist elements at all and nevertheless could be able to explain the presence of a common core of criteria and beliefs in all our conceptual schemes and beliefs. two distinctions are important here: first, local conceptual schemes and long termframeworks, and second, environment and world. this last distinction makes possible to speak, even inside a coherent relativist epistemological conception, of the existence of an objective reality.
Tiempo local del superbrowniano en medios aleatorios
Revista Colombiana de Matemáticas , 2007,
Abstract: we prove the existence of local time of superbrownian motion in random environments, with state space the finite borelian measures on rd, when d ≤ 3.
Tiempo local del superbrowniano en medios aleatorios Local time of superbrownian motion in random environments
Revista Colombiana de Matemáticas , 2007,
Abstract: Se demuestra que el tiempo local del superbrowniano en medios aleatorios, con espacio de estados las medidas finitas en los borelianos de Rd, existe cuando d ≤ 3. We prove the existence of local time of superbrownian motion in random environments, with state space the finite Borelian measures on Rd, when d ≤ 3.
Le molte anime di Giaime Pintor
Cristina Villa
Incontri : Rivista Europea di Studi Italiani , 2013,
Abstract: Recensione di: Monica Biasiolo, Giaime Pintor und die deutsche Kultur: Auf der Suche nach komplement ren Stimmen, Heidelberg, Winter, 2010, 586 p., ISBN: 97838253571, € 85,00.
‘Leggere’ il Novecento attraverso Dante
Marianna Villa
Incontri : Rivista Europea di Studi Italiani , 2013,
Elena Villa
Image Analysis and Stereology , 2010, DOI: 10.5566/ias.v29.p111-119
Abstract: The problem of the evaluation of the so-called specific area of a random closed set, in connection with its mean boundary measure, is mentioned in the classical book by Matheron on random closed sets (Matheron, 1975, p. 50); it is still an open problem, in general. We offer here an overview of some recent results concerning the existence of the specific area of inhomogeneous Boolean models, unifying results from geometric measure theory and from stochastic geometry. A discussion of possible applications to image analysis concerning the estimation of the mean surface density of random closed sets, and, in particular, to material science concerning birth-and-growth processes, is also provided.
Milk (2008) and The Times of Harvey Milk (1984): The Double Filmic Resurrection of the Mayor of Castro Street
Sara Villa
Altre Modernità , 2010,
Abstract: On 18th November 1977, Milk recorded his will, "to be played only in the event of [his] death by assassination." In the first section of the tape, he declared his awareness of being the potential victim of such violence: "I fully realize that a person who stands for what I stand for, an activist, a gay activist, becomes the target or potential target for a person who is insecure, terrified, afraid, or very disturbed with themselves." Both Milk (2008), the most recent biopic dedicated to him, and The Times of Harvey Milk (1982), a previous Academy Award winning documentary, open on this testimony, and immediately follow it with the repertoire scenes of the day of his assassination. However, in spite of this initial mourning tonality, neither of these mainstream movies ends up being the martyrography of their main character, who was killed after receiving an escalating series of death threats. They rather proceed by relying on a journalistic style which resurrects Milk through his own words, which were constantly developed around the theme of hope. After the tragic first scene, both feature films reconstruct the keystones of Milk's political achievements by directly quoting from his frequent speeches, public and private writings and constant activism for the Gay Liberation Front. The first out-of-the-closet gay man elected to a political office in the United States is therefore alive again on screen, in two radically different occasions. Firstly, through the documentary The Times of Harvey Milk, in a year when the anti-gay HIV backlash was leading to increasingly serious levels of homophobia throughout the country. Secondly, in a mainstream biopic of the years 2000, when the debate over gay marriage legislation is again dividing the United States of America. This paper aims at analyzing the ways in which this double filmic reappearance of Milk's political figure reactivates his piercing political activism in two different, but similarly crucial historical moments for the GLBT community, and contributes to the affirmation of an illuminated gay icon within the overall fight for human rights.
Lolita: l'immortale
Sara Villa
Altre Modernità , 2010,
Abstract: Lolita: l'immortale (Paolo Caponi, Bambole di carne. Lolita prima e dopo il romanzo, Pisa: Edizioni ETS, 2008, 142 pp., ISBN 978-884672220-1) di Sara Villa
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