Los periódicos oaxaqueños en la primera mitad del siglo XIX: del formalismo legal a la “creación del nuevo ciudadano” oaxaqueño, 1825-1860

"En los años que corren entre 1825 y 1860 nuestro país vivió un largo y sinuoso camino de estira y afloja entre las ideas del llamado “Antiguo Régimen” y los nuevos vientos republicanos liberales. Si bien se hablaba por diversos medios -donde las publicaciones periódicas, los folletos, los folletines jugaron un papel crucial- de formar a un ciudadano “nuevo”, que rompiera con las ataduras mentales del pasado, la cosa no fue simple y sencilla. Dentro de este contexto, un tema que ha sido poco abordado por la historiografía mexicana es el papel que los periódicos jugaron en esta tarea de educación cívica. En el mejor de los casos, este tipo de publicaciones ha sido utilizado como una fuente que abreva en el conocimiento del “formalismo legal” de una época determinada, pero pocos son los estudiosos que han utilizado con otra óptica esta riquísima fuente para el estudio de la cultura jurídico-política. Este artículo es un primer intento por analizar los periódicos oaxaqueños en el lapso que corre entre 1825 y 1860, tratando de relacionar su existencia con las coyunturas políticas que se vivían, así como con los intentos por renovar el contenido de este tipo de publicaciones en el ámbito local.

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

Las relaciones comerciales entre España y los Países Bálticos

[Resumen]: Los intercambios internacionales han cobrado una gran importancia durante los últimos años debido, principalmente, a la integración económica, a la apertura comercial de la gran mayoría de países y al proceso de globalización económica. Existen muchos factores tales como la tecnología, la distancia entre los países protagonistas en un intercambio, su participación en la misma unión comercial…, así como innumerables factores económicos, por ejemplo, la crisis global del año 2008, que provocan numerosos cambios durante diferentes períodos de tiempo. A lo largo de este trabajo de estudiará la relación comercial de España y tres países bálticos adheridos a la Unión Europea: Estonia, Letonia y Lituania. Se supone que compartir área de integración económica e incluso moneda habrá incrementado las posibilidades de comerciar bienes entre nuestro país y los 3 referidos. Como paso previo, se estudiará el comportamiento de las principales variables macroeconómicas durante los últimos años. Posteriormente, se revisarán los diferentes tipos de análisis utilizados a lo largo de los años para el análisis del comercio y, para terminar, se realizará el análisis pertinente.[Abstract]: International exchanges have gained great importance in recent years, mainly due to economic integration, the commercial opening of a lot of countries and the process of economic globalization. There are many factors such as technology, the distance between the leading countries in an exchange, their participation in the same trade union ..., as well as innumerable economic factors, for example, the global crisis of 2008, which cause numerous changes during different periods of time. Throughout this work you will study the commercial relationship of Spain and three Baltic countries adhering to the European Union: Estonia, Latvia and Lithuania. It is assumed that sharing the area of economic integration and even currency will have increased the possibilities of trading goods between our country and the 3 referred. As a previous step, the behavior of the main macroeconomic variables during the last years will be studied. Subsequently, the different types of analysis used over the years for trade analysis will be reviewed and, finally, the relevant analysis will be carried out.Traballo fin de grao (UDC.ECO). ADE. Curso 2019/202

Productividad y propietarios con diferentes objetivos: el caso de las sociedades de garantía recíproca

Las sociedades de garantía recíprocas (SGR) son un instrumento para facilitar el acceso a la financiación a las pymes mediante la concesión de avales. Se trata de sociedades donde cohabitan dos tipos diferentes de propietarios: los socios partícipes, que son las pymes avaladas, y los socios protectores que participan para apoyar el funcionamiento del sistema. En este último grupo tiene un papel primordial las administraciones públicas. Toda sociedad tiene por objetivo satisfacer los intereses de sus propietarios, por lo que estimamos la productividad en la consecución de los intereses de cada uno de los grupos. Asimismo también estimamos la productividad en la consecución de los intereses de los gestores y de la eficiencia técnica para comprobar su compatibilidad con los intereses de los propietarios. Todos los datos nos aportarán el grado de complementariedad que logra cada sociedad en la consecución de los diferentes intereses.Mutual guarantee societies (MGS) are a good vehicle to improve the financing of the Small and Medium-Sized Enterprises (SMEs). In MGS there are two major types of shareholders, a) participant SMEs which have received a loan guarantee and which have a stake in the MGS and b) protector shareholder which include public and private institutions such as local and regional governments, chamber of commerce and financial institutions although public institutions play a major role. Each group of shareholders has its own interests. We estimate the productivity over time for each group of shareholders in order to obtain a complete picture of the efficiency of MGS and in order to estimate how the different group objectives are achieved. Also we estimate the productivity in the attainment of the interests of the managers and the technical efficiency to check their compatibility with the interests of the owners

Alternativa metodológica para el desarrollo de la resistencia a la fuerza rápida en la lucha femenina

The research deals with a topic of great relevance and controversy in the academic circles of sport. The subject of sports training in female wrestling athletes in the category of 13-15 years is based on several methodological theoretical foundations. The aim is to offer a solution to the problem detected, from the contribution to the development of the resistance to the rapid force addressed in the process of the physical preparation of the practitioners. In this sense, a methodological alternative is proposed as the main contribution of the research. This includes a system of structural and functional elements in which it is emphasized as a contribution in the planning and execution of the special physical preparation of females, oriented to the methodological development for its fulfillment.  La investigación aborda un tema de mucha actualidad y polémica en los círculos académicos del deporte. Se parte de varios fundamentos teóricos metodológicos el tema del entrenamiento deportivo en las atletas de lucha libre femenina en la categoría de 13-15 años. Se persigue ofrecer una vía de solución al problema detectado, a partir de la contribución al desarrollo de la resistencia a la fuerza rápida abordado en el proceso de la preparación física de las practicantes. En tal sentido se propone una alternativa metodológica como aporte principal de la investigación. Esta comprende un sistema de elementos estructurales y funcionales en la que se enfatiza como contribución en la planificación y ejecución de la preparación física especial de las féminas, orientadas al desarrollo metodológico para su cumplimiento

South American Expert Roundtable : increasing adaptive governance capacity for coping with unintended side effects of digital transformation

This paper presents the main messages of a South American expert roundtable (ERT) on the unintended side effects (unseens) of digital transformation. The input of the ERT comprised 39 propositions from 20 experts representing 11 different perspectives. The two-day ERT discussed the main drivers and challenges as well as vulnerabilities or unseens and provided suggestions for: (i) the mechanisms underlying major unseens; (ii) understanding possible ways in which rebound effects of digital transformation may become the subject of overarching research in three main categories of impact: development factors, society, and individuals; and (iii) a set of potential action domains for transdisciplinary follow-up processes, including a case study in Brazil. A content analysis of the propositions and related mechanisms provided insights in the genesis of unseens by identifying 15 interrelated causal mechanisms related to critical issues/concerns. Additionally, a cluster analysis (CLA) was applied to structure the challenges and critical developments in South America. The discussion elaborated the genesis, dynamics, and impacts of (groups of) unseens such as the digital divide (that affects most countries that are not included in the development of digital business, management, production, etc. tools) or the challenge of restructuring small- and medium-sized enterprises (whose service is digitally substituted by digital devices). We identify specific issues and effects (for most South American countries) such as lack of governmental structure, challenging geographical structures (e.g., inclusion in high-performance transmission power), or the digital readiness of (wide parts) of society. One scientific contribution of the paper is related to the presented methodology that provides insights into the phenomena, the causal chains underlying “wanted/positive” and “unwanted/negative” effects, and the processes and mechanisms of societal changes caused by digitalization

Factor de condición relativo de Leporinus acutidens (Valenciennes,1837) (pisces, anostomidae) en el alto rio Paraná, aguas abajo de la represa Yacyretá

Leporinus acutidens (Valenciennes, 1837) es una de las especies más abundantes del Alto río Paraná. El objetivo del presente trabajo fue evaluar los cambios espacio-temporales en el estado de bienestar de sus poblaciones en un tramo de este río, aguas abajo de la represa Yacyretá. Los peces fueron colectados, desde julio de 2009 a junio de 2013, con una batería de redes agalleras en dos sitios seleccionados en relación con su distancia a la represa (Ituzaingó= 1 km aguas abajo; Itá Ibaté=90 km aguas abajo). Se aplicó un análisis factorial de la covarianza a fin de evaluar el efecto del sexo, sitios y ciclo hidrológico (2009/10, 2010/11, 2011/12, 2012/13) sobre el factor de condición relativo Kn de los peces. Los resultados mostraron que el factor fue siempre superior en las hembras. Las diferencias entre sitios de muestreo no fueron significativas, aunque se registraron valores de Kn más elevados en Itá Ibaté. Además, se detectó un efecto significativo del ciclo hidrológico (p < 0,05), con valores de Kn mayores en ciclos con inundaciones más pronunciadas. Los resultados obtenidos demuestran el fuerte efecto modelador del régimen hidrológico sobre las poblaciones de L. acutidens en este tramo del río Paraná.Leporinus acutidens (Valenciennes, 1837) is one of the most abundant species in the High Paraná River. The aims of this study was estimate the relative condition factor as an indicator of population fitness of fishes, and evaluate its spatio-temporal variation. Fishes were collected using gillnets in two sites along Paraná River, which were selected according to the distance from Yacyretá Dam (Ituzaingó= closer site; Itá Ibaté= farther site). Sampling was performed from July 2009 to June 2013. Factorial ANCOVA was applied to evaluate the sex, sampling sites and hydrological cycle effect (2009/10, 2010/11, 2011/12, 2012/13) on relative condition factor. The female always had higher condition factor than males. No significant differences were identified between sites, but higher Kn values occurred in Itá Ibaté. Besides, a significant effect of hydrological cycle (p < 0.05) was detected; intense and pronounced flood were associated to highest Kn values. Our results confirm the importance of hydrologic regime as strong determinant of population changes of L. acutidens in this section of Paraná riverFil: Silva, Natalia Andrea. Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias. Instituto de Ictiologia del Nordeste; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; ArgentinaFil: Soneira, Paula Alejandra. Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias. Instituto de Ictiologia del Nordeste; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; ArgentinaFil: González, Alfredo O.. Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias. Instituto de Ictiologia del Nordeste; ArgentinaFil: Barrios, Carlos Eduardo. Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias. Instituto de Ictiologia del Nordeste; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; ArgentinaFil: Sánchez, Sebastián. Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias. Instituto de Ictiologia del Nordeste; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; Argentin

Optimization of the dental implant with the use of ILIB: major considerations

Introduction: In the context of implantology and osseointegration for the stabilization of dental implants, the use of ILIB (Intravascular Laser Irradiation of Blood) to stimulate tissues, cells, and molecules at the systemic level stands out. In this sense, ILIB can be used with postoperative applications in the osseointegration and stability of dental implants. Objective: Conducted a concise systematic review of the main findings of using the ILIB to improve dental implant practices. Methods: The research was carried out from May 2021 to June 2021 and developed based on Scopus, PubMed, Science Direct, Scielo, and Google Scholar, following the Systematic Review-PRISMA rules. The quality of the studies was based on the GRADE instrument and the risk of bias was analyzed according to the Cochrane instrument. Results: A total of 58 studies were analyzed, with only 10 medium and high-quality studies selected, according to GRADE rules, and with risks of bias that do not compromise scientific development. After analyzing the major studies, it was analyzed that, with the use of ILIB, several bone regeneration factors can be promoted and optimized for implant dentistry. Other authors have shown that ILIB therapy has oral sterilization properties, facilitating tissue healing after surgical procedures and the osseointegration process for placement of stable implants. Despite this, low-intensity laser irradiation may have limitations, as it requires specific dosimetry and few published studies on the use of ILIB in Dentistry. Conclusion: Literary findings point to the safety and efficacy of ILIB in dental implant treatments. The ILIB power is included as an eligibility criterion equal to other low power lasers. Furthermore, ILIB enables local and systemic treatment, optimizing the benefits of its use by dentists, mainly to improve the stabilization of osseointegrated implants and prevent or eliminate contamination

Optimizing Phase Settings of High-Frequency Voltage Regulators for Power Delivery Applications

Every new computer server introduced to the market aims at delivering the best tradeoff between performance and power consumption. This goal is crucial in the case of servers for cloud computing hardware infrastructure. In this context, power delivery (PD) experts are adopting higher frequency switching voltage regulators (VR) to reduce platform’s cost as well as total cost of ownership (TCO). Because of this fact, the real estate of components, such as voltage regulators and output inductors, is shrinking as VR frequency increases. As a consequence, achieving the best performance of the VR implies looking into phase shedding schemes, as well as EM coupled inductor design, among other techniques, to mitigate power losses. This paper focuses on the study of the best angle arrangement possible for high frequency VR applications, by exploring angle settings under light load scenarios, aiming to minimize VR’s power loss and output’s voltage ripple