Verificación de estructura autoportante para chimenena

Proyecto Integrador (IM)--FCEFyN-UNC, 2018Pretende verificar la estructura ampliada ya definida y corroborar según normas vigentes si es capaz de soportar las cargas a la cual se encontrará sometida en su utilización con las limitaciones que presenta el actual trabajo por el cual no debe por ningún motivo ser considerado una memoria de cálculo ni como guía constructiva

Local public sector big data communication on social media: A sentiment analysis in Twitter

La rápida difusión de las redes sociales en las administraciones públicas requiere un análisis desde la información y comunicación institucional. Uno de los aspectos detectados recientemente es el tono con el que emiten sus mensajes las organizaciones públicas, a través del cual pueden fomentar la colaboración y participación ciudadana. Este trabajo analiza el tono que los ayuntamientos españoles de más de 50.000 habitantes están empleando en sus perfiles de redes sociales. Se parte de dos preguntas de investigación: (a) cuál es el tono general empleado por los ayuntamientos en su uso de redes sociales; y (b) cuáles son los factores que explican la elección de un tono u otro. Recurriendo al estudio de Twitter mediante técnicas de big data y análisis estadísticos, el artículo encuentra un tono comunicativo general positivo. Los factores organizativos, institucionales y ambientales clásicos parecen no tener una influencia estadísticamente significativa sobre el tono. El artículo concluye con propuestas de mejora de cara a futuros estudios en diferentes aspectos a partir de los resultados obtenidosThe rapid adoption of social media by public administrations deserves attention from the side of institutional information and communication. One of the points recently identified is the tone used by public sector organizations to deliver their messages, as it may encourage citizen collaboration and participation. This paper explores the tone that Spanish city councils with more than 50,000 inhabitants are using in their social media profiles. This paper is based in two research questions: (a) What is the general tone used by the city councils in their use of social media?; (b) What explanatory factors are behind the adoption of one tone or another? Studying Twitter through big data techniques and statistical analysis, this study finds a positive general communicative tone. Traditional organizational, institutional and environmental factors do not seem to have a statistical significant influence over the tone. This article concludes with proposals for improvement on future research derived from the research resultsEsta investigación es resultado del proyecto de investigación Gobernanza inteligente de las redes sociales digitales en las administraciones locales de la Unión Europea. Estrategias de implementación, factores de éxito y modelos de servicio público en España, Países Bajos, Reino Unido y Suecia” #SocialGovNet (IN[16]_CJS_CCP_0190), financiado por la Fundación BBV

Revisiting social media institutionalization in government. An empirical analysis of barriers

Social media have become a common organizational resource of governments and public administrations in different contexts. Previous authors have stated that social media institutionalization encompasses a process including stages from experimentation to complete command of the innovation. However, an understanding of barriers to social media institutionalization in public administration needs to be developed. In this article we focus on exploring what factors operate as barriers of the social media institutionalization process. Methodologically, we use a mixed-methods strategy combining different sources of data for triangulation purposes, including a survey on social media conducted to Spanish largest local governments. Based on this data, and following the literature on social media institutionalization, we construct a Social Media Institutionalization Index (SMI). Our SMI is founded on a set of variables measuring to what extent social media have been embedded in public sector organizations. Also, we conducted a case study in a city council based on semi-structured interviews. Our results suggest that social media institutionalization has not been fully developed in our sample of local governments. In addition, different variables (including security, lack of resources for maintenance, control and evaluation, organizational culture, or absence of governance framework) are perceived by public managers as institutionalization barriers, whereas the governance scheme of social media seems to be the critical variable. At the same time, we emphasize that some inhibitors might be overvalued by public employees. This article encourages future avenues of comparative research and practical recommendations to public managers leading social media in the public sectorThis study was supported by the Research Grant RTI2018-095344-AI00 (SmartGov_Local), State Research Agency, Spanish Ministry of Science and Innovatio

Semantic model for flood management

Risk assessment involves the study of vulnerability and hazards. When focused on flood events, such an analysis should evidently include the theoretical and practical study of floods and their behavior. Nevertheless, risk assessment is not useful if the results are not subsequently used for more effective management and planning by local authorities and qualified personnel. The risk evaluation process is composed of a set of actions, each of which requires different inputs. In fact, the results of one action are used as the input for another. This paper describes a semantic model for the study and management of floods with a view to elaborating a conceptual framework and designing a knowledge base. The model is based on the environmental assessment ontology and demonstrates how a brief ontology can be generated.Andalusian Regional Government P07-TIC-02913 P08-RNM-0358

Un diálogo recuperado de Juan Ginés de Sepúlveda: De pugna legum dirimenda (1).

Sin resume

La industria de materiales básicos de construcción ante las ingentes necesidades actuales de edificación

El trabajo aborda en forma documentada, algunos aspectos del mayor de los retos que tiene planteado a nivel cosmopolita el sector de la edificación: las ingentes necesidades de habitabilidad básica que padece la humanidad, centrándose en forma monográfica en lo que ello supone para la industria de materiales básicos de edificación. Necesidades que se traducen en la mayor demanda histórica de soluciones ex-novo y en el aumento exponencial de rehabilitación y mejora de tugurios, que los autores traducen en necesidades de materiales de construcción, y de forma más concreta, de cemento, como material emblemático de la edificación. El trabajo, mediante el análisis de casos, muestra la muy diferente repercusión que tienen los materiales sobre los presupuestos finales de lo ejecutado, según se trate del mundo desarrollado (MD) o de países en vías de desarrollo (PVD). Por otra parte, estudia la incidencia general del sector 'informal' de la construcción, concluyendo que éste, en muchos países, es el consumidor mayoritario de materiales -specialmente cemento-y que a nivel mundial los PVD lo son tanto en producción como en consumo. - This paper documents some of the aspects of the major challenge facing world-wide building: humanity's daunting shortage of basic housing, monographically focusing on what this means for the basic building materials industry. These needs have created the greatest demand ever for ex-novo solutions and an exponential increase in slum rehabilitation and improvement, translated here into the need for construction materials and more specifically, cement, as the emblematic component of buildings. Based on case studies, the article explores the differential impact of materials on final building costs in the developed world (DW) and developing countries (DC). It also studies the general consequences of “informal” construction, concluding that in many countries this sector consumes a major share of materials, particularly cement, and that globally speaking DCs are both the largest producers and consumers of that product

Two-Section Two-Zone Fluidized Bed Reactor fluid dynamics: experimental study, hydrodynamic modelling and CFD simulations

A Two Zone Fluidized Bed Reactor (TZFBR) represents an effective solution to integrate reaction and catalyst regeneration in a single fluidized bed reactor. Reactor hydrodynamics of an improved TZFBR configuration, that incorporates a different cross-sectional area between zones to allow a better fluid dynamic control on each zone separately, is here investigated

Errata and authorial handwritten corrections in Michel de Vascosan’s edition of the Latin translation of Aristotle’s Politics by Juan Ginés de Sepúlveda (Paris, 1548)

La edición de Michel de Vascosan de la traducción latina de la Política de Aristóteles de Juan Ginés de Sepúlveda (París, 1548) apareció con un gran número de erratas. Esta circunstancia molestó profundamente a Sepúlveda que tomó nota de todas ellas y de sus correspondientes correcciones en dos ejemplares diferentes, destinados a servir de base a una nueva edición que nunca llegó a ver la luz y que son el objeto del presente trabajo.This paper studies the large number of misprints inMichel de Vascosan’s edition of the Latin translation, by Juan Ginés de Sepúlveda, ofAristotle’s Politics (Paris, 1548). The author, deeply disappointed, marked them in two different copies. They were planned to be used in the preparation of a new edition of the work, never printed

Distributed formation control of multiple unmanned aerial vehicles over time-varying graphs using population games

© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.This paper presents a control technique based on distributed population dynamics under time-varying communication graphs for a multi-agent system structured in a leader-follower fashion. Here, the leader agent follows a particular trajectory and the follower agents should track it in a certain organized formation manner. The tracking of the leader can be performed in the position coordinates x; y; and z, and in the yaw angle phi. Additional features are performed with this method: each agent has only partial knowledge of the position of other agents and not necessarily all agents should communicate to the leader. Moreover, it is possible to integrate a new agent into the formation (or for an agent to leave the formation task) in a dynamical manner. In addition, the formation configuration can be changed along the time, and the distributed population-games-based controller achieves the new organization goal accommodating conveniently the information-sharing graph in function of the communication range capabilities of each UAV. Finally, several simulations are presented to illustrate different scenarios, e.g., formation with time-varying communication network, and time-varying formationPeer ReviewedPostprint (author's final draft