Pragmatic Rhetorical Principles in Isocrates

While Isocrates regarded rhetoric not as a rigid discipline, but as a creative and pliable art, it is not possible to standardize art. According to his point of view (Against the sophists 13.13), good speech depends on certain principles: opportunity (kairos); suitability (to prepon) and novelty (kainos). The sophists, according to Isocrates, did not pay attention to these principles, and that was their main mistake. The problem was, however, that it was difficult to teach these principles to the disciples, precisely because rhetoric was a flexible art. Still, although it is not possible to provide fixed rules concerning rhetorical principles, the ancient rhetor provided some useful suggestions in his works which make it possible to reconstruct the nature of these principles

Because I Am Not Here: Second Life Based Artists, Four Selected Case Studies

Second Life (SL) is an on-line virtual world ‘inhabited’ by avatars that are designed by actual life users (SL residents). In SL identity, sociability and subjectivity are important and permanent aspects of the goal of having a second (virtual) existence. My doctoral thesis (in progress) is centred on the work of 4 artists in SL and how they play with autoempathy, identity an subjectivity in the liminal shifting of aesthetic regimes (that rely upon temporalities rather than spatialities) present in their SL artwork. This is what Anna Munster calls the distribute aesthetics1 of virtual worlds. Lacan Galicia, my avatar in SL, works in four case studies concerning these subjects. The expected findings of my research can contribute to the discussion of the theories of digital aesthetics and interactive virtual worlds at large

Because I am Not Here, Selected Second Life-Based Art Case Studies. Subjectivity, Autoempathy and Virtual World Aesthetics

Second Life is a virtual world accessible through the Internet in which users create objects and spaces, and interact socially through 3D avatars. Certain artists use the platform as a medium for art creation, using the aesthetic, spatial, temporal and technological features of SL as raw material. Code and scripts applied to animate and manipulate objects, avatars and spaces are important in this sense. These artists, their avatars and artwork in SL are at the centre of my research questions: what does virtual existence mean and what is its purpose when stemming from aesthetic exchange in SL? Through a qualitative research method mixing distribute aesthetics, digital art and media theories, the goal is to examine aesthetic exchange in the virtual: subjectivity and identity and their possible shifting patterns as reflected in avatar-artists. A theoretical and methodological emphasis from a media studies perspective is applied to digital media and networks, contributing to the reshaping of our epistemologies of these media, in contrast to the traditional emphasis on communicational aspects. Four case studies, discourse and text analysis, as well as interviews in-world and via email, plus observation while immersed in SL, are used in the collection of data, experiences, objects and narratives from avatars Eva and Franco Mattes, Gazira Babeli, Bryn Oh and China Tracy. The findings confirm the role that aesthetic exchange in virtual worlds has in the rearrangement of ideas and epistemologies on the virtual and networked self. This is reflected by the fact that the artists examined—whether in SL or AL—create and embody avatars from a liminal (ambiguous) modality of identity, subjectivity and interaction. Mythopoeia (narrative creation) and experiencing oneself as ‘another’ through multiplied identity and subjectivity are the outcomes of code performance and machinima (films created in-world). They constitute a modus operandi (syntax) in which episteme, techne and embodiment work in symbiosis with those of the machine, affected by the synthetic nature of code and liminality in SL. The combined perspective from media studies and distribute aesthetics proves to be an effective method for studying these subjects, contributing to the discussion of contemporary virtual worlds and art theories

La comunicación y difusión de las políticas públicas de gobierno. Aspectos constitucionales, legales y presupuestarios

The paper analyzes the regulatory framework of the governmental official communications from the legal aspects of expenditure, content and channels, and its relation to freedom of speech and the right to receive informationEl trabajo analiza el marco regulatorio de las comunicaciones oficiales de Gobierno, desde sus aspectos de legalidad del gasto, contenido y vías de difusión, y su relación con la libertad de expresión y el derecho a recibir información

A Nonlinear Technical Indicator Selection Approach for Stock Markets. Application to the Chinese Stock Market

In this paper we present a combinatorial nonlinear technical indicator approach for the identification of appropriate combinations of stock technical indicators as inputs in non-linear models. This approach is illustrated with the example of Chinese stock indexes and 35 different stock technical indicators using neural networks as the chosen non-linear method. Stock market technical indicators can generate contradictory signals regarding the future performance of the stock analyzed. Furthermore, some non-linear methods, such as neural networks, can have poor generalization power when dealing with problems of high dimensionality due to the issue of local minima. Therefore, non-linear approaches that can identify appropriate combinations of input variables are of clear importance. It will be shown that the proposed approach, when using neural networks as classifiers, generates error rates lower than those using directly neural networks without dimensionality reduction. It will also be shown that merely increasing the number of neurons does not increase the accuracy. The approach proposed in this article is illustrated with an application to the stock market using neural networks but it could be applied to other fields and it can also be used with other non-linear techniques such as for instance support vector machines.Ministerio de Ciencia e Innovación PID2019-106212RB-C41

Evaluación de las condiciones predisponentes a enfermedades en granjas porcinas a pequeña escala en un ambiente urbano en el noroeste de la Ciudad de México

The objective of the work was to develop and apply an instrument to identify the predisposing conditions to the occurrence of diseases in 12 small-scale swine farms in an urban environment. The percentage of negative points obtained in general and by type of farm was analyzed according to its production, fattening (T1) or full cycle (T2), where the highest percentage was for T1 (50 %) and for T2 (66.0 %). Likewise, the data were analyzed to compare the farms T1 and T2 in relation to the percentages of each section that makes up the survey, where only a difference in the “health state” section (P<0.0001) was found. The relationship between the population density per m2 with respect to the maximum percentage of points reached by farms showed no difference (R2, 0.03; P=0.854). No correlation was found between the percentage of points obtained with the number of animals (R2, 0.13; P=0.722). In relation to the average percentage per section by population size, only a difference in the “feeding” section (P<0.0006) was detected, indicating that farms with 10 to 40 swine obtained fewer points in this section. It is concluded that the methodology for the evaluation of conditions predisposing to diseases in this type of farms proved to be applicable. It was determined that farm size and population density are not a predisposing factor in these farms, but the predisposing conditions to the occurrence of diseases differ between full-cycle and fattening farms.El objetivo del trabajo fue desarrollar y aplicar un instrumento para identificar las condiciones predisponentes a la presentación de enfermedades en 12 granjas porcinas a pequeña escala en un ambiente urbano. Se analizó el porcentaje de puntos negativos obtenidos de manera general y por tipo de granja en función a su producción, engorda (T1) o ciclo completo (T2), donde el mayor porcentaje fue para T1 (50 %) y para T2 (66.0 %). Del mismo modo se analizaron los datos para comparar a las granjas T1 y las T2 en relación con los porcentajes de cada sección que integra la encuesta, donde solo se encontró diferencia en la sección “estado de salud” (P<0.0001). La relación entre la densidad de población por m2 con respecto al porcentaje máximo de puntos alcanzados por granjas, no mostró diferencia (R2, 0.03; P=0.854). No se encontró correlación entre el porcentaje de puntos obtenidos con el número de animales (R2, 0.13; P=0.722). En relación al porcentaje promedio por sección por tamaño de la población, solo se detectó diferencia en la sección “alimentación” (P<0.0006), indicando que las granjas con 10 a 40 cerdos obtuvieron menos puntos en esta sección. Se concluye que la metodología para la evaluación de las condiciones predisponentes a enfermedades en este tipo de granjas resultó ser aplicable. Se determinó que el tamaño de las granjas y la densidad de población, no son un factor predisponente en estas granjas, pero las condiciones predisponentes a la presentación de enfermedades difieren entre granjas de ciclo completo y engorda

Aerófonos y mitología caribeña

El trabajo aborda la musicalidad de los aborígenes prehispánicos, aspecto muy reiterado en las Crónicas de Indias por los europeos y que han quedado reflejadas en las obras escritas por: Fernando de Oviedo, Fray Bartolomé de Las Casas, Pedro Mártir de Anglería, y Núñez Cabeza de Vaca, que de manera irresoluta nos posibilitan explicar las prácticas organológicas de estas sociedades pretéritas. También se refleja la asociación de instrumentos de soplo con el sistema simbólico e iconográfico en el ámbito caribeño lo cual nos conduce a dialogar con un mundo mitológico conectado de manera indivisible con elementos de la naturaleza

Análisis de la influencia del grado de compactación de una mezcla asfáltica en su deformación permanente y la susceptibilidad a la humedad

Trabajo de InvestigaciónEstablecer la influencia que puede llegar a tener la densidad y su relación de vacíos dados por el grado de compactación, con la falla de la deformación permanente (Ahuellamiento) y la susceptibilidad al agua en las capas de asfalto.INTRODUCCIÓN 1.ANTECEDENTES Y JUSTIFICACIÓN 2.OBJETIVOS 3.MARCO DE REFERENCIA 4. METODOLOGÍA 5.INSTALACIONES Y EQUIPO REQUERIDO 6.ANÁLISIS DE RESULTADOS 7.PRESUPUESTO DEL TRABAJO Y RECURSOS FINANCIEROS 8.CONCLUSIONES • RECOMENDACIONES • BIBLIOGRAFÍAPregradoIngeniero Civi

MatSWMM - An open-source toolbox for designing real-time control of urban drainage systems

This manuscript describes the MatSWMM toolbox, an open-source Matlab, Python, and LabVIEW-based software package for the analysis and design of real-time control (RTC) strategies in urban drainage systems (UDS). MatSWMM includes control-oriented models of UDS, and the storm water management model (SWMM) of the US Environmental Protection Agency (EPA), as well as systematic-system edition functionalities. Furthermore, MatSWMM is also provided with a population-dynamics-based controller for UDS with three of the fundamental dynamics, i.e., the Smith, projection, and replicator dynamics. The simulation algorithm, and a detailed description of the features of MatSWMM are presented in this manuscript in order to illustrate the capabilities that the tool has for educational and research purposes.Peer ReviewedPostprint (author's final draft