421 research outputs found
Undecidability of Q(2)
Get PDFIt is shown that the compositum Q(2) of all degree 2 extensions of Q has undecidable theory.articl
On polar Legendre polynomials
Get PDF10 pages, no figures.-- MSC2000 codes: Primary 42C05; Secondary 33C25.-- ArXiv pre-print available at: http://arxiv.org/abs/0709.4537Accepted in Rocky Mountain Journal of Mathematics.We introduce a new class of polynomials {Pn}, that we call polar Legendre polynomials, they appear as solutions of an inverse Gauss problem of equilibrium
position of a field of forces with n + 1 unit masses. We study algebraic, differential
and asymptotic properties of this class of polynomials, that are simultaneously
orthogonal with respect to a differential operator and a discrete-continuous Sobolev
type inner product.Research by first author (H.P.) was partially supported by Dirección General de Investigación, Ministerio de Ciencia y Tecnología de España, under grant MTM2006-13000-C03-02, by Comunidad de Madrid-Universidad Carlos III de Madrid, under grant CCG06-UC3M/EST-0690 and by Centro de Investigación Matemática de Canarias (CIMAC). Research by second author (J.Y.B.) was supported by CNPq-TWAS. Research by third author (W.U.) was partially supported by Centro de Investigación Matemática de Canarias (CIMAC).En prens
Duplicidad de código en Stack Overflow en español.
No full textPDFEl sitio Stack Overflow en español es una comunidad en línea de preguntas y respuestas sobre
desarrollo de software y temas tecnológicos donde sus usuarios pueden publicar interrogantes
y aportar sus soluciones a las preguntas de otros usuarios. No obstante, uno de los problemas
más recurrente que existe en la comunidad son las publicaciones con segmentos de código
duplicado, por tanto, el objetivo de este estudio es desarrollar un modelo de aprendizaje
automático para la detección de código duplicado para la cual se llevó a cabo una revisión
sistemática de estudios relacionados sobre el tema, con el propósito de tener conocimiento
sobre los métodos y técnicas de aprendizaje automático para la detección de duplicidad. Se
tomo en consideración las técnicas Levenshtein y FuzzyWuzzy que permiten calcular la
distancia de similitud entre dos cadenas de caracteres. Creando un dataset para el
preprocesamiento de los datos que serán utilizados para el etiquetado manual, entrenamiento
de los modelos desarrollados y recolección de información, una vez implementado las técnicas
se procedió a evaluar los resultados obtenidos mediante su precisión y encuestas a los usuarios
del sitio, se determinó que las técnicas implementadas tienen una precisión muy efectiva al
momento de detectar segmentos de códigos duplicados. Concluyendo que la técnica que es más
precisa al momento de identificar la duplicidad en los segmentos de código en las preguntas de
SOES es FuzzyWuzzy.The Stack Overflow site is an online Q&A community on software development and
technology issues where its users can post questions and provide their solutions to other users'
questions. However, one of the most recurrent problems in the community is publications with
duplicate code segments, therefore, the objective of this study is to develop a machine learning
model for duplicate code detection for which a systematic review of related studies on the
subject was carried out, with the purpose of having knowledge of machine learning methods
and techniques for duplicity detection. Consideration was given to the Levenshtein and
FuzzyWuzzy techniques that allow the similarity distance between two-character strings to be
calculated. By creating a Dataset for the preprocessing of the data that will be used for manual
labeling, training of the developed models and collection of information, once the techniques
were implemented, the results obtained through their precision and surveys of the users of the
site were evaluated, it was determined that the techniques implemented have very effective
accuracy when detecting duplicate code segments. Concluding that the technique that is most
accurate when identifying duplication in code segments in SOES questions is FuzzyWuzzy
Perspectives of the River Plate around the time of Rosas : an analysis based upon the personal correspondence, private memoirs and published accounts of British settlers, as well as works by creole authors
No full textThis thesis draws inspiration from the emergence of cultural studies as an academic
pursuit, in addition to the current renewal of interest in the relationship between
literary works and their socio-cultural milieux, to bring together an assortment of
textual traces pertaining to the River Plate around the era of Juan Manuel de Rosas,
governor of Buenos Aires and de facto dictator of Argentina for most of the period
1829-1852. The main texts analysed range from private documents relating to two
Scottish settler families, through accounts published by British citizens with first-hand
knowledge of the region (Un inglés, Cinco años en Buenos Aires and
Beaumont, Travels in Buenos Ayres and the Adjacent Provinces), to three influential
pieces of early Argentinian literature (Echeverria's El matadero, Mármol's Amalia
and Sarmiento's Facundo). One justification of this apparently eclectic approach lies
in the prominence accorded to the incomer in the thought of liberal Platine
intellectuals, a concern evinced in their literary production.
The methodology involves examining the representation of certain
fundamental topics across this range of written artefacts, observing frequent points of
thematic convergence amongst the various texts. In this fashion, I construct an image
of the River Plate region around the Rosas period, whilst also appraising the degree
to which early British settlers matched the idealized notion of the immigrant present
in liberal creole writings.
The study is divided into four main chapters, supplemented by an
introduction, conclusion and appendix. The first chapter summarizes the historical
context of the young Platine republics; the second deals with the themes of society,
community and family, the third focuses upon religion; the fourth considers
perspectives of politics, dictatorship and civil war. The appendix consists of an
unpublished settler autobiography, a remarkable account of the tribulations faced on
a daily basis in the developing Argentina
Similarity in greater dissimilarity. The analogical discourse on God according to Thomas Aquinas in "STH" I, q .13, aa .3-4
No full text[ES] El presente estudio pretende ofrecer un análisis del discurso analógico sobre Dios a partir de STh. I, q.13, aa.3-4. La intención de Tomás de Aquino consiste, principalmente, en presentar una solución al problema de los fundamentos que asisten al discurso teológico sobre Dios. Pero antes de analizar dicha cuestión, nuestro autor ha establecido las condiciones de posibilidad para un conocimiento sobre el mismo. Es precisamente en este marco concreto de cuestiones previas donde se sitúa el debate sobre la analogía, considerada, además, como un tipo de lenguaje indirecto que apunta más allá de sí mismo. [EN] The present study aims to offer an analysis of the analogical discourse on God from STh. I, q.13 a.3-4. Thomas Aquinas's claim consists, mainly, of presenting a solution to the problem of the foundations that support the theological discourse on God. But before analyzing this question, our author has established the conditions of possibility for the knowledge about God. It is just this specific framework of previous questions the place of the debate on the analogy, which is considered, in addition, as a type of
indirect language that points beyond itself.Este trabajo ha sido realizado con la ayuda del Centro Español de Estudios Eclesiásticos anejo a la Iglesia Nacional Española de Santiago y Montserrat en Roma en el marco de los proyectos de investigación del curso 2018-2019
Semejanza en mayor desemejanza. El discurso analógico sobre Dios según Tomás de Aquino en STh I, q.13, aa.3-4 // Similarity in greater dissimilitary. The analogical discourse on God according to Thomas Aquinas in STh I, q.13, aa.3-4.
No full texthe present study aims to offer an analysis of the analogical discourse on God from STh. I, q.13 a.3-4. Thomas Aquinas's claim consists, mainly, of presenting a solution to the problem of the foundations that support the theological discourse on God. But before analyzing this question, our author has established the conditions of possibility for the knowledge about God. It is just this specific framework of previous questions the place of the debate on the analogy, which is considered, in addition, as a type of indirect language that points beyond itself. Keywords: Analogy, Proportion, Proportionality, Knowledge, Thomas Aquinas.
El presente estudio pretende ofrecer un análisis del discurso analógico sobre Dios a partir de STh. I, q.13, aa.3-4. La intención de Tomás de Aquino consiste, principalmente, en presentar una solución al problema de los fundamentos que asisten al discurso teológico sobre Dios. Pero antes de analizar dicha cuestión, nuestro autor ha establecido las condiciones de posibilidad para un conocimiento sobre el mismo. Es precisamente en este marco concreto de cuestiones previas donde se sitúa el debate sobre la analogía, considerada, además, como un tipo de lenguaje indirecto que apunta más allá de sí mismo. Palabras clave: analogía, proporción, proporcionalidad, conocimiento, Tomás de Aquino.
Talking Away the Crisis? The E3/EU-Iran Negotiations on Nuclear Issues. College of Europe EU Diplomacy Paper 6/2007, November 2007
Get PDFThe E3/EU-Iran negotiations on nuclear issues have been ongoing since summer 2003 with the aim to find a balance between Iran’s desire to establish a peaceful nuclear enrichment programme and satisfying the safeguards of the international community against the possible development of a nuclear weapons programme. This paper provides an analysis of these negotiations and draws the conclusion that the E3, and later the E3/EU, have entered the negotiations with Iran without a clear strategy or alternative outcomes, focusing only on ‘getting what they want’. It argues that in order to reach a mutually acceptable solution, the E3/EU needs to take a more pro-active stand in preparing the pre-negotiations and negotiations. It will be important to find a common formula. The E3/EU needs to create a win-win situation and end the crisis before it is too late
Q–Str2–Models: A software in PyQGIS to obtain Stress–Strain models from GNSS geodynamic velocities
Get PDFQ–Str2–Models is an opensource application developed in Python (PyQGIS) and integrated into QGIS that provides us with several tools for creating Stress–Strain models in geodynamically active areas, from the calculation of the horizontal velocities of many points from a temporal or permanent GNSS network. This software generates the results of the maximum geodetic deformation, shear deformation, rotation and dilatation of the points, which are later translated into graphic products; heatmaps, displacement vectors and Stress–Strain tensors. In this article we show the results of the application of Q–Str2–Models for the analysis of 65 GNSS stations of SPINA (South of the Iberian Peninsula and North Africa) network to know the geodynamic behavior of the Andalusian region and its surroundings. © 2023 The Author
Cvrsv certari : acerca de la afición cinegética de Q. Tvllivs Maximvs (CIL II 2660)
Get PDFPresentamos en este artículo un nuevo estudio de las cinco inscripciones que E. Hübner reunió bajo el núm. CIL II 2660, con nueva edición de texto y nueva interpretación.In this paper the author offers a new study about the five latin inscriptions that E. Hübner published in CIL II 2660, with a new edition and a new interpretation
A True Random Number Generator for Blockchain Wallets Based on Quantum Computation
No full textPublisher Copyright: © The Author(s), under exclusive license to Springer Nature Switzerland AG 2025.Considering the importance of cryptography in blockchain networks, the usage of pseudo-random number generators for the secret key and nonce generation is, at least, arguable. Randomness should always be generated from non-deterministic sources, to ensure the random elements are not retrievable from third parties. In this work, a true random number generator based on quantum computation (Q-TRNG) is proposed. This Q-TRNG has allowed to create a quantum secret key generator (Q-SKG), generating keys and nonces whose entropies and serial correlation coefficients showed better values compared to the ones obtained from other widely used blockchain wallets. To the knowledge of the authors, this is the first Q-SKG that has been built for blockchain applications, enhancing the security of secret keys and transaction signatures.Peer reviewe
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