PROCESOS DE CONSTRUCCIÓN Y ORGANIZACIÓN DE LA DEPARTAMENTALIZACIÓN EN LA UNCUYO

El trabajo presenta los avances en una línea de investigación cualitativa iniciada en el 2005 acerca del análisis interpretativo de las políticas de gobernabilidad de la gestión universitaria en el ámbito de la Universidad Nacional de Cuyo, Mendoza, Argentina. En este período se focaliza el problema de estudio en comprender los procesos decisionales de la gestión presentes en las Asambleas Universitarias y su relación con medidas tendientes a la reforma en la organización, es decir, la departamentalización. Estos antecedentes orientan al objetivo central actual: especificar las políticas de gestión inherentes a los procesos de construcción y organización académica departamentalizada en el ámbito de la Universidad Nacional de Cuyo, en el marco de las reformas estatutarias. La universidad representa un sistema abierto y contingente. La totalidad dinámica de la UNCUYO se encuentra en transición, resignificándose su configuración organizacional, donde lo tradicional y lo moderno son parte de un sistema que evoluciona. El modelo departamental que se aplica hoy en el mundo, difiere según las realidades y posibilidades de cada universidad; puesto que sus premisas de organización y funcionamiento son diferentes. Esto hace que al analizarlas no se las puede considerar semejantes, ni aplicárseles las mismas lógicas y razonamientos académicos, administrativos y políticos, ni los mismos indicadores y parámetros para su comparación. Se pretende con esta presentación dar cuenta de las expresiones y decisiones que emergen de la propuesta de gestión de reforma estatutaria, de cara a la Asamblea, funcionales al modelo matricial departamentalizado. El método utilizado es la teoría basada en datos o método de comparación constante. Aún en etapa inicial, se cuenta con primeras aproximaciones que supondrían una estrategia de consecución de objetivos parciales y acotados para la reforma organizacional paulatina

Efeito da preservação alveolar com enxerto xenógeno e selamento com biomateriais absorvíveis em região não molar: revisão sistemática

Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Programa de Pós-Graduação em Odontologia, Florianópolis, 2017.A preservação do rebordo alveolar limita os efeitos negativos da perda óssea que se suscitam depois da perda do elemento dental, visando resultados favoráveis para posterior reabilitação protética. Atualmente, diferentes técnicas e biomateriais têm sido propostos para uso clínico, e uma vasta evidência científica é encontrada na literatura, criando confusão e gerando dúvidas na prática clínica. O presente trabalho tem como objetivo revisar sistematicamente os efeitos clínicos, radiológicos e histológicos da preservação alveolar com osso xenógeno e selamento com biomaterial absorvível na região anterior comparados com a cicatrização espontânea. Uma busca estruturada, seguindo critérios de inclusão e exclusão baseados nos participantes, intervenção estudada, comparação e desfechos procurados, foi realizada nas bases eletrônicas PubMed, SCOPUS, Web of Science, Cochrane Library, LILACS, ProQuest e Open Grey, assim como uma busca manual. Identificaram-se um total de 3,765 referências, depois de criteriosas etapas de seleção, resultaram 4 artigos para a análise narrativa, originados de 3 estudos. Todos foram ensaios clínicos randomizados com não menos de 10 pacientes avaliados por grupo e não menos 6 meses de seguimento. A avaliação do risco de viés dos estudos foi realizada por meio da software Reference Manager (Cochrane Collaboration). Embora as diferentes metodologias não permitissem ter um estudo conclusivo, pode-se observar que a perda óssea horizontal e vertical por vestibular e lingual é menor no grupo submetido à intervenção que no grupo controle.Abstract : The alveolar ridge preservation technique limits the negative effects of crestal bone loss, which is caused by tooth loss and consequently improves future results for prosthetic rehabilitation. Currently, different techniques and biomaterials have been proposed for clinical use, however, literature shows an extensive scientific evidence that brings confusion and generates doubts in clinical practice. The present study aims to systematically review the clinical, radiological, and histological effects of alveolar ridge preservation with xenogenous bone and sealing with an absorbable biomaterial in the anterior region, compared to spontaneous healing. A structured search, following criteria of inclusion and exclusion based on the participants, studied intervention, compared and searched outcomes, was performed in the electronic databases: PubMed, SCOPUS, Web of Science, Cochrane Library, LILACS, ProQuest and Open Grey, as well as hand-searching. A total of 3,765 references were identified. After careful selection study phases, 4 articles were included for the narrative analysis, which came out from 3 studies. All were randomized clinical trials with no less than 10 patients evaluated per group and no less than 6 months of follow-up. The risk of bias was assessed using the Reference Manager software (Cochrane Collaboration). Although, the different methodologies of the selected studies did not allow a conclusive revision, it can be observed that horizontal bone loss, mid-buccal and mid-lingual vertical bone loss are lower in the intervention group than in the control group

Las cantidades en la Yupana desde una perspectiva cultural andina: una experiencia en aulas de primer y segundo grado de primaria

En este estudio presentamos un análisis de la concepción de cantidad, histórica y culturalmente construida por las sociedades sudamericanas alto andinas. Nuestra finalidad es posibilitar su adaptación pedagógica a través de un recurso también culturalmente propio como es la Yupana. En este sentido, enlazamos las actividades que realizan las personas en un contexto sociocultural andino con las actividades escolares. Específicamente, la construcción de significados de cantidad y sus operaciones básicas en niños que inician la formación básica escolar. La metodología empleada es el estudio de casos. La recolección de datos consistió en las observaciones de actividades en el aula

IEEE 802.16J-Relay Fortified Aeromacs Networks; Benefits and Challenges

Aeronautical Mobile Airport Communications System (AeroMACS) is an IEEE 802.16 standard-based (WiMAX) broadband aviation transmission technology, developed to provide safety critical communications coverage for airport surface in support of fixed and mobile ground to ground applications and services. We have previously demonstrated that IEEE 802.16j-amendment-based WiMAX is most feasible for AeroMACS applications. The principal argument in favor of application of IEEE 802.16j technology is the flexible and cost effective extension of radio coverage that is afforded by relay fortified WiMAX networks, with virtually no increase in the power requirements. In this article, following introductory remarks on airport surface communications, WiMAX and AeroMACS; the IEEE 802.16j-based WiMAX technology and multihop relay systems are briefly described. The two modes of relay operation supported by IEEE 802.16j amendment; i.e., transparent (TRS) and non-transparent (NTRS) modes, are discussed in some detail. Advantages and disadvantages of using TRS and NTRS in AeroMACS networks are summarized in a table. Practical issues vis--vis the inclusion of relays in AeroMACS networks are addressed. It is argued that the selection of relay type may affect a number of network parameters. A discussion on specific benefits and challenges of inclusion of relays in AeroMACS networks is provided. The article concludes that in case it is desired or necessary to exclusively employ one type of relay mode for all applications throughout an AeroMACS network, the proper selection would be the non-transparent mode

Lineamientos de política para la articulación de las carreras técnicas con el sector productivo en la región Ica

El presente trabajo de investigación analiza, desde un enfoque cualitativo, el problema de la falta de articulación de las carreras técnicas con el sector productivo. Para ello, se centra en una determinada región del país, la región Ica, la cual es objeto de un diagnóstico tanto a nivel de fuentes primarias como secundarias. Previamente se desarrolló un modelo conceptual a partir de la teoría revisada sobre el tema, especialmente de la revisión de los sistemas de educación técnica de otros países. Una vez contrastada la realidad situacional de Ica con nuestro modelo conceptual, se obtienen los problemas o brechas principales que deben ser objeto de atención a nivel de política, mediante la formulación correspondiente de lineamientos. A partir de la información obtenida, se encuentra que existen brechas y deficiencias en todos los factores principales identificados como determinantes de la articulación de las carreras técnicas, con la demanda laboral del sector productivo: información, institucionalidad, participación de la empresa e incentivos, en algunos con más intensidad que en otros. Asimismo, se advierte que no en todos los casos es viable proponer lineamientos para orientar las políticas regionales, dado que la naturaleza del problema implica acciones y decisiones de nivel nacional. Sí es más viable en aspectos referidos a la participación empresarial y a la información, en algunos casos también a la institucionalidad, pero es más difícil poder solucionar algunos de los problemas vinculados con los incentivos desde una posición únicamente regional

Modelagem e estudo de fraturas em meios elásticos: estudo da equação da onda 1D

Anais do III Encontro de Iniciação Científica da Unila - Sessão de Matemática e Física I - 06/11/14 – 13h20 às 15h40 - Unila-PTI - Bloco 09 – Espaço 03 – Sala 03Problemas relacionados com a busca por hidrocarbonetos e áreas com reservas de Gás e Óleo exigem técnicas computacionais de tratamento de imagens. Uma forma de se obter estas informações é tratar os dados sísmicos e obter imagens de como é a subsuperfície alvo por meio de Modelos Matemáticos baseados na propagação de ondas elásticas. Dentro do que é esperado de uma iniciação científica, o objetivo deste trabalho foi comparar e analisar o método numérico com o método analítico no caso de um meio isotrópico, na sequência foram avaliados os aspectos das soluções numéricas quando aplicadas a um sistema acopladado de equações para o caso de meio anisotrópico VTI (Vertical Transversely Isotropic). A equação da onda elástica completa 3D para meios VTI pode ser desacoplada, por meio da decomposição de campos vetoriais de Helmholtz, e a partir dela podemos obter a equação da onda que na literatura é denominada Pseudo-Acústica. Foi utilizado o método de diferenças finitas (MDF) na resolução de um sistema de equações acopladas que representa o caso Pseudo-Acústico VTI em 1D. A semelhança da Equação Pseudo-Acústica 3D com a 1D justifica o estudo da equação da onda 1D e, após validada, a técnica pode ser expandida para mais dimensões. A técnica permite uma estimativa dos valores das amplitudes das ondas P e pseudo-S para valores de Epsilon e Delta conhecidos experimentalmente. Além disso, as condições iniciais adotadas garantem a convergência do resultado para valores de Epsilon > Delta. Para o caso de Epsilon < Delta o método numérico não esta adequado. Para que este último caso esteja de acordo com a física do problema um estudo detalhado das condições iniciais e uma outra forma de discretizar o problema é necessário. O estudo de uma malha de diferenças finitas que seja adequada para resolver a condição Epsilon < Delta pode ser o objeto de futuras pesquisas.Bolsista Pibic - UNILA; Universidade Federal da Integração Latino-Americana (UNILA)Bolsista Pibic - UNILA

Trade and Sustainable Development Goals (SDGs): How can trade in education services contribute to the SDGs?

While trade can greatly contribute to providing more education opportunities in the development world, its potential has not been fully exploited so far. This paper examines how international trade can help increase supply of and investment in higher education, thereby enhancing access and quality in support of the Sustainable Development Goals (SDGs). First, the paper examines the changing dynamics in the higher education sector and how these have spurred reforms in education systems and novel ways of delivering educational services. These factors, which include demand-side factors, reforms in government funding, technological developments, and the rise of global value chains (GVCs), have prompted mixed policies which increasingly regard foreign providers as prospective partners. Whereas these trends point toward the internationalization of education services, the role of trade agreements and their potential contribution to the SDGs have barely been explored. Therefore, the second part of the paper examines how trade agreements can help facilitate trade in education services and the flexibility they provide for attaining social policy objectives. International trade agreements can help attract foreign providers and foreign direct investment (FDI) in education by reducing barriers to entry, levelling the playing field among providers, and providing a predictable and transparent regulatory environment. At the same time, the General Agreement on Trade in Services (GATS) can support and complement the development of appropriate policy and regulatory frameworks to accompany market opening and promote the SDG goals of ensuring inclusive and quality education. Overall, a balance will need to be struck between opening trade in education and addressing regulatory challenges with a view to fostering coherence among policy objectives in support of the SDGs

Wireless Channel Characterization: Modeling the 5 GHz Microwave Landing System Extension Band for Future Airport Surface Communications

We describe a recently completed wideband wireless channel characterization project for the 5 GHz Microwave Landing System (MLS) extension band, for airport surface areas. This work included mobile measurements at large and small airports, and fixed point-to-point measurements. Mobile measurements were made via transmission from the air traffic control tower (ATCT), or from an airport field site (AFS), to a receiving ground vehicle on the airport surface. The point-to-point measurements were between ATCT and AFSs. Detailed statistical channel models were developed from all these measurements. Measured quantities include propagation path loss and power delay profiles, from which we obtain delay spreads, frequency domain correlation (coherence bandwidths), fading amplitude statistics, and channel parameter correlations. In this paper we review the project motivation, measurement coordination, and illustrate measurement results. Example channel modeling results for several propagation conditions are also provided, highlighting new findings

The endemic gastropod fauna of Lake Titicaca : correlation between molecular evolution and hydrographic history

Lake Titicaca, situated in the Altiplano high plateau, is the only ancient lake in South America. This 2- to 3-My-old (where My is million years) water body has had a complex history that included at least five major hydrological phases during the Pleistocene. It is generally assumed that these physical events helped shape the evolutionary history of the lake´s biota. Herein, we study an endemic species assemblage in Lake Titicaca, composed of members of the microgastropod genus Heleobia, to determine whether the lake has functioned as a reservoir of relic species or the site of local diversification, to evaluate congruence of the regional paleohydrology and the evolutionary history of this assemblage, and to assess whether the geographic distributions of endemic lineages are hierarchical. Our phylogenetic analyses indicate that the Titicaca/Altiplano Heleobia fauna (together with few extralimital taxa) forms a species flock. A molecular clock analysis suggests that the most recent common ancestor (MRCAs) of the Altiplano taxa evolved 0.53 (0.28–0.80) My ago and the MRCAs of the Altiplano taxa and their extralimital sister group 0.92 (0.46–1.52) My ago. The endemic species of Lake Titicaca are younger than the lake itself, implying primarily intralacustrine speciation. Moreover, the timing of evolutionary branching events and the ages of two precursors of Lake Titicaca, lakes Cabana and Ballivián, is congruent. Although Lake Titicaca appears to have been the principal site of speciation for the regional Heleobia fauna, the contemporary spatial patterns of endemism have been masked by immigration and/or emigration events of local riverine taxa, which we attribute to the unstable hydrographic history of the Altiplano. Thus, a hierarchical distribution of endemism is not evident, but instead there is a single genetic break between two regional clades. We also discuss our findings in relation to studies of other regional biota and suggest that salinity tolerance was the most likely limiting factor in the evolution of Altiplano species flocks

Global Mobile Satellite Service Interference Analysis for the AeroMACS

The AeroMACS (Aeronautical Mobile Airport Communications System), which is based on the IEEE 802.16-2009 mobile wireless standard, is envisioned as the wireless network which will cover all areas of airport surfaces for next generation air transportation. It is expected to be implemented in the 5091-5150 MHz frequency band which is also occupied by mobile satellite service uplinks. Thus the AeroMACS must be designed to avoid interference with this incumbent service. Simulations using Visualyse software were performed utilizing a global database of 6207 airports. Variations in base station and subscriber antenna distribution and gain pattern were examined. Based on these simulations, recommendations for global airport base station and subscriber antenna power transmission limitations are provided