555 resultados para Interferencia métrica


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The Atlantic Forest in Rio Grande do Norte (RN) is included in Pernambuco biogeographic sub-region and it is composed by Semi-deciduous Forest, deciduous Forest, Mangrove and Restinga. We assessed the conservation status of Atlantic Forest in the RN through remnants mapping using high resolution satellite images and landscape ecology approaches. We evaluated if there is difference between the north and south coastal regions considering their natural a historical land use differences. We also assessed the influence of the small remnants on landscape cover and configuration. The proportion of the original biome area with remnants larger than 3 hectares is 15.60% for the official governmental limit and is 16.60% for the alternative limit (SNE, 2002). This remnants proportion varies between 0.56 and 46.52% in the hydrographic basins. 89.70% of the remnants are smaller than 50 hectares. Only 6.00% of the remnants are greater than 100 hectares, and these remnants are responsible by 65% of remaining area. The patches with smaller area influence all calculated metrics. The south coastal hydrographic basins have higher percentage of coverage of remnants, larger patch densities and fragments with larger areas than north coastal hydrographic basins. The diffuse drainage basins of the southern coastal have the highest percentage of coverage with remnants. 18.28% and 10% of the biome area are protected by reserves, according to the official governmental and alternative limits respectively. The reserves are mainly of sustainable use (IUCN V-VI). Therefore, the Atlantic Forest in Rio Grande do Norte is in critical situation, with low proportion of remaining area and high fragmentation level. It’s indispensable to biome conservation keep all the remaining area, especially the large remnants, and restore areas to increase remnants proportion and to increase landscape connectivity

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This study describes the development of a prototype to evaluate the potential of environments based on two-dimensional modeling and virtual reality as power substations learning objects into training environments from a central operation and control of power utility Cemig. Initially, there was an identification modeling features and cognitive processes in 2D and RV, from which it was possible to create frames that serve to guide the preparation of a checklist with assigning a metric weight for measuring cognitive potential learning in the study sites. From these contents twenty-four questions were prepared and each was assigned a weight that was used in the calculation of the metric; the questions were grouped into skill sets and similar cognitive processes called categories. Were then developed two distinct environments: the first, the prototype features an interactive checklist and your individual results. And, second, a system of data management environment for the configuration and editing of the prototype, and the observation and analysis of the survey results. For prototype validation, were invited to access the virtual checklist and answer it, five professionals linked to Cemig's training area. The results confirmed the validity of this instrument application to assess the possible potential of modeling in 2D and RV as learning objects in power substations, as well as provide feedback to developers of virtual environments to improve the system.

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lmage super-resolution is defined as a class of techniques that enhance the spatial resolution of images. Super-resolution methods can be subdivided in single and multi image methods. This thesis focuses on developing algorithms based on mathematical theories for single image super­ resolution problems. lndeed, in arder to estimate an output image, we adopta mixed approach: i.e., we use both a dictionary of patches with sparsity constraints (typical of learning-based methods) and regularization terms (typical of reconstruction-based methods). Although the existing methods already per- form well, they do not take into account the geometry of the data to: regularize the solution, cluster data samples (samples are often clustered using algorithms with the Euclidean distance as a dissimilarity metric), learn dictionaries (they are often learned using PCA or K-SVD). Thus, state-of-the-art methods still suffer from shortcomings. In this work, we proposed three new methods to overcome these deficiencies. First, we developed SE-ASDS (a structure tensor based regularization term) in arder to improve the sharpness of edges. SE-ASDS achieves much better results than many state-of-the- art algorithms. Then, we proposed AGNN and GOC algorithms for determining a local subset of training samples from which a good local model can be computed for recon- structing a given input test sample, where we take into account the underlying geometry of the data. AGNN and GOC methods outperform spectral clustering, soft clustering, and geodesic distance based subset selection in most settings. Next, we proposed aSOB strategy which takes into account the geometry of the data and the dictionary size. The aSOB strategy outperforms both PCA and PGA methods. Finally, we combine all our methods in a unique algorithm, named G2SR. Our proposed G2SR algorithm shows better visual and quantitative results when compared to the results of state-of-the-art methods.

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The growing interest in quantifying the cultural and creative industries, visualize the economic contribution of activities related to culture demands first of all the construction of internationally comparable analysis frameworks. Currently there are three major bodies which address this issue and whose comparative study is the focus of this article: the UNESCO Framework for Cultural Statistics (FCS-2009), the European Framework for Cultural Statistics (ESSnet-Culture 2012) and the methodological resource of the “Convenio Andrés Bello” group for working with the Satellite Accounts on Culture in Ibero-America (CAB-2015). Cultural sector measurements provide the information necessary for correct planning of cultural policies which in turn leads to sustaining industries and promoting cultural diversity. The text identifies the existing differences in the three models and three levels of analysis, the sectors, the cultural activities and the criteria that each one uses in order to determine the distribution of the activities by sector. The end result leaves the impossibility of comparing cultural statistics of countries that implement different frameworks.

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Objective: Relapse fear is a common psychological scar in cancer survivors. The aim of this study is to assess the effects of an abridged version of Acceptance and Commitment Therapy (ACT) in breast cancer patients.Method: An open trial was developed with 12 non-metastatic breast cancer patients assigned to 2 conditions, ACT and waiting list. Interventions were applied in just one session and focused on the acceptance of relapse fears through a ‘defusion’ exercise. Interference and intensity of fear measured through subjective scales were collected after each intervention and again 3 months later. Distress, hypochondria and ‘anxious preocupation’ were also evaluated through standardized questionnaires.Results: The analysis revealed that ‘defusion’ contributed to decrease the interference of the fear of recurrence, and these changes were maintained three months after intervention in most subjects. 87% of participants showed clinically significant decreases in interference at follow-up sessions whereas no patient in the waiting list showed such changes. Statistical analysis revealed that the changes in interference were significant when comparing pre, post and follow-up treatment, and also when comparing ACT and waiting list groups. Changes in intensity of fear, distress, anxious preoccupation and hypochondria were also observed.Conclusions: Exposure through ‘defusion’ techniques might be considered a useful option for treatment of persistent fears in cancer patients. This study provides evidence for therapies focusing on psychological acceptance in cancer patients through short, simple and feasible therapeutic methods.

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En el presente trabajo se analiza la manera en la que el dramaturgo valenciano Andrés Rey de Artieda diseñó los diferentes espacios dramáticos por los que transcurre la acción de su única pieza teatral conocida: Los amantes. Compuesta poco después de 1577, se trata de una obra deudora de los parámetros dramatúrgicos de su tiempo, pues el componente literario del texto dramático predomina claramente sobre el espectacular. Estamos ante un tipo de teatro fundamentado en la palabra y muy poco en lo visual.Sin embargo, ya se perciben en el texto ciertos rasgos de innegable modernidad, que es el asunto que me ha interesado a la hora de acercarme a él. Mi objetivo será demostrar el dinamismo con el que se producen los cambios de espacio dramático a lo largo de la trama argumental para subrayar que Rey de Artieda tenía ya asumidas algunas de las innovaciones que desembocarán en el teatro nacional español unas décadas más tarde.

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La escritura electrónica es en la actualidad una modalidad gráfica de gran éxito que en los últimos años comenzó a ser albo de diversas investigaciones lingüísticas. Sin embargo, un análisis exclusivamente gramatical, desvinculado del medio social en el que se utiliza, parece insuficiente para entender un fenómeno de tal complejidad. Consecuentemente, analizamos sus características en base a los condicionamientos sociolingüísticos presentes en el caso gallego. Así, examinamos las implicaciones de la situación de contacto y conflicto lingüístico entre el gallego y el español, señalamos las motivaciones de la alternancia de código y de las interferencias lingüísticas –que no siempre coinciden con las que operan en la lengua común- y observamos que estas prácticas son consecuencia de la confluencia de factores sociolingüísticos con otros de naturaleza pragmática.

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Pilgrimage to Compostela was decreasing in the nineteenth century. This situation was still worse in France, where the number of pilgrims dwindled dramatically. In fact, there are not many travel narratives in this period, as no relevant French author showed any interest in this religious event. An analysis of these works reveals that the worship to Santiago was somehow considered by these authors a mere historical remnant with an aura of prestige. They allow almost no space for factual descriptions, and therefore used documentary sources to discuss the topic in their own texts. As a consequence, their knowledge of this universe became indirect and intertextual.

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En general, España es un país que no tiene una tradición sólida en la sinología. La traducción de la literatura china en España todavía no llega a un nivel satisfactorio y muchas obras originales todavía siguen sumidas en el desconocimiento. En comparación con los flujos de traducción de las obras occidentales, sobre todo las obras literarias de Gran Bretaña, Francia y Estados Unidos, la traducción de aquellas todavía ocupa una cuota reducida. En la recepción de la narrativa china en España, la traducción indirecta ha desempeñado un papel de suma importancia, lo que se debe en gran medida a la dependencia del círculo editorial español de las culturas europeas de poder. Esta situación desequilibrada pone de manifiesto las relaciones asimétricas entre lenguas y culturas.

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En este trabajo se abordan los problemas que presenta la traducción de textos poéticos, en concreto las dificultades que conlleva el trasvase del ritmo en poemas escritos en verso libre. Para ello, presentamos la traducción que hemos realizado del poema “Sonate à S.”, incluido en Avec un peu plus de ciel (2012), obra reciente del reconocido escritor contemporáneo francés André Velter. Tras una breve introducción sobre el verso libre, el ritmo y las posibles estrategias traductológicas, se analizan las características del poema original y se comentan las dificultades que plantea su trasvase. A continuación, el artículo se cierra con las principales conclusiones obtenidas. Asimismo, se incluye un anexo con el texto origen y el texto meta.

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Apesar de todos nós nos esquecermos, é comum atribuir-se os lapsos de memória às pessoas com idades avançadas. A evidência científica tem, no entanto, demonstrado que o esquecimento advém de uma multiplicidade de factores, como por exemplo, o excesso de trabalho, falta de descanso, entre outros. Neste estudo pretende-se saber se existe associação entre a tríade conceptual ansiedade, stress e depressão e os lapsos de memória, numa população em idade activa e com habilitações académicas de nível superior. A amostra é constituída por 68 professores que exercem a sua actividade profissional na Escola E.B. 2,3 de Cantanhede. A recolha dos dados foi efectuada recorrendo a: um questionário elaborado por nós, constituído por questões abertas e fechadas, uma Escala de Ansiedade, Depressão e Stress (EADS-21) e um Questionário de lapsos de memória (QLM). As análises estatísticas dos questionários foram efectuadas recorrendo ao programa informático SPSS (versão 15). As análises tiveram com objectivo final a testagem das hipóteses e tomaram em consideração a natureza métrica das variáveis. / In spite of all of we forget ourselves, it is common the lapses of memory are attributed to the persons with advanced ages. The scientific evidence has, however, when that the oblivion results from a multiplicity of factors was demonstrated, I eat for example, the excess of work, rest lack, between others. In this study one intends to know if there is association between the conceptual triad anxiety, stress and depression and the lapses of memory, in a population in active age and with academic competences of superior level. The sample is constituted by 68 teachers who practice his professional activity in the School E.B. 2,3 of Cantanhede. The gathering of the data was effectuated resorting to: a questionnaire prepared by us, constituted by questions open and shut, a Scale of Anxiety, Depression and Stress (EADS-21) and a Questionnaire of lapses of memory (QLM). The statistical analyses of the questionnaires were effectuated when there is resorting to the program informatics SPSS (version 15). The analyses had with final objective the testate of the hypotheses and took in consideration the metric nature of the variables.

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The current paper aims at analyzing customer retention in Internet provider services. For this study, we sought to understand what are the client's expectations regarding the services available and compare them with management perception in relation to the use of those services. Identifying the coherence level between the two points of view, management and client, it is possible to pinpoint how service is assessed in real conditions. Then, from this point on, a new vision can be implemented on available services, and new customer service strategies aiming at best serving to their expectation and need, can be rethought. The exploratory research was utilized. It was based on case study, and quantitative and qualitative methods were used. The quantitative method was done by applying the cluster technique with six variables of control derived from the six main services, whose definition was done through qualitative survey of the internal management team. Then, an structured interview with 443 clients, from a probabilistic sample of 800 costumers. The total number of active clients of the internet provider is of 10.677. Client perception in relation to services varied, if compared with the four services that were under the managerial metric method, this comparison showed a more positive evaluation than the real use of the service. Thus, it was observed that the value of each service available for the client depends on his/her perception of it, regardless of using or not the offered service. As a result, it is possible to understand which services offered by the company under study effectively contribute to a good client-company relationship, and the upkeep of those clients

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Recent paradigms in wireless communication architectures describe environments where nodes present a highly dynamic behavior (e.g., User Centric Networks). In such environments, routing is still performed based on the regular packet-switched behavior of store-and-forward. Albeit sufficient to compute at least an adequate path between a source and a destination, such routing behavior cannot adequately sustain the highly nomadic lifestyle that Internet users are today experiencing. This thesis aims to analyse the impact of the nodes’ mobility on routing scenarios. It also aims at the development of forwarding concepts that help in message forwarding across graphs where nodes exhibit human mobility patterns, as is the case of most of the user-centric wireless networks today. The first part of the work involved the analysis of the mobility impact on routing, and we found that node mobility significance can affect routing performance, and it depends on the link length, distance, and mobility patterns of nodes. The study of current mobility parameters showed that they capture mobility partially. The routing protocol robustness to node mobility depends on the routing metric sensitivity to node mobility. As such, mobility-aware routing metrics were devised to increase routing robustness to node mobility. Two categories of routing metrics proposed are the time-based and spatial correlation-based. For the validation of the metrics, several mobility models were used, which include the ones that mimic human mobility patterns. The metrics were implemented using the Network Simulator tool using two widely used multi-hop routing protocols of Optimized Link State Routing (OLSR) and Ad hoc On Demand Distance Vector (AODV). Using the proposed metrics, we reduced the path re-computation frequency compared to the benchmark metric. This means that more stable nodes were used to route data. The time-based routing metrics generally performed well across the different node mobility scenarios used. We also noted a variation on the performance of the metrics, including the benchmark metric, under different mobility models, due to the differences in the node mobility governing rules of the models.

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Contiene: Planificación de una red DVB-H en entorno urbano David Gómez Barquero, Ariana Salieto Alexis P. García, José F. Monserrat, Narcís Cardona Incorporación de la habilidad de coordinación y del módulo de personalización de sesiones al simulador de otorrinolaringología Wesst-OT Lina María Hurtado, Oscar Darío Ramírez Mauricio Castrillón S., Angélica María Ospina C. Francisco J. Herrera Botero Andrés A. Navarro Newball, Jorge A. Vélez Beltrán GenLeNa: Sistema para la construcción de Aplicaciones de Generación de Lenguaje Natural Gloria Johanna Chala T. Rafael Armando Jordán O. Diego Luis Linares Programación básica para adolescentes Guillermo Londoño Acosta Gustavo Adolfo Paz Loboguerrero Análisis de interferencia entre las tecnologías inalámbricas Bluetooth e IEEE 802.11g Fabio Guerrero Oliver Cardona Miguel Fuertes Teoría de Sistemas: Visión trascendental de Sistemas y Espiritualidad Ricardo Schnitzler

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Neste artigo me proponho discutir os critérios por mim adotados na tradução poética do espanhol para o português, a partir de teorias da tradução, com ênfase na tradução poética, exemplificando-os com as traduções que realizei de Quevedo e, mais especificamente, do soneto “Desde la torre”. Detenho-me no gênero soneto, com detalhes sobre a métrica e a consequente dificuldade para encontrar os efeitos rítmicos similares na língua de chegada. Encerro com uma micro-análise de “Desde la torre”.