984 resultados para Mapa base


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El siglo XXI está contribuyendo a la consolidación de un arte más social, contextual, referencial y colaborativo. El auge y la proliferación de las estrategias cartográficas son un claro ejemplo de ello, así como sus múltiples formatos de expresión. Identificar los mapas colaborativos como una herramienta capaz de comunicar lo que sucede dentro de un contexto en riesgo de exclusión social, puede ser una de las claves para que la población que en ellos habita genere conocimiento propio de sus vínculos con el territorio y así contribuya a la desmitificación de imaginarios sociales estigmáticos. Se plantea el empleo de estas estrategias en un entorno en concreto, el Polígono Sur, para valorar las consecuencias que éstas podrían tener en el fomento de una autonomía intelectual a través de una propuesta de intervención con base empírica. Ésta se ha fundamentado en los principios metodológicos de una investigación de corte cualitativo, como la investigación-acción y el estudio de caso, a la par que en las herramientas que consecuentemente se diseñaron para la obtención de información. Los resultados apuntan a que, al menos en lo que se refiere al Polígono Sur, a fin de que el mapa colaborativo se convierta en un recurso que fomente la difusión de lo que éste constituye para sus vecinos, es necesario que primeramente exista una conciencia de la situación, que promueva, a su vez, el desarrollo de un pensamiento crítico de la misma.

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O estudo da sismicidade em Portugal ao longo de várias centenas de anos é essencial para uma melhor avaliação do risco sísmico ao qual o continente está sujeito. Neste trabalho, a organização de diversas fontes históricas e atuais numa base de dados possibilita validar facilmente a ocorrência de eventos sísmicos no período desde 1300 a 2014. A construção de um mapa de intensidades máximas observadas neste período permite mostrar que todo o território Português esteve sujeito a sismos com Io≥V. Existem também registos de grandes eventos sísmicos, concentrados em pequenas áreas, que causaram danos consideráveis. De destacar ainda o impacto dos sismos com epicentro no mar, nas cidades costeiras, no Centro e Sul do país.

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Se presenta en este trabajo, el primer intento de integración de un mapa temático, escala 1:500.000, de las amenazas geológicas que afectan frecuentemente a Costa Rica.  El esfuerzo principal ha consistido en aportar la compilación de toda la fuente bibliográfica, cartográfica y documental, técnica y científica disponible, de los principales fenómenos geológicos que han provocado o son capaces de provocar daños al hombre y a su infraestructura del país.El mapa tiene carácter descriptivo y por supuesto NO de pronóstico, pues esencialmente presenta los sitios donde se han manifestado los fenómenos y donde, por las condiciones locales, podrían hacerlo de nuevo.  Según el predominio relativo de los factores que controlan cada fenómenos, las amenazas se clasifican en tres grandes categorías:  aquellas de naturaleza atmosférica (sequías, tormentas-lluvias de alta intensidad), geológica, geodinámica interna (sismicidad, volcanismo) y geodinámica externa (erosión, deslizamientos , inundaciones).  No obstante que las amanazas de carácter atmosférico intervienen fuertemente dentro del desarrollo de la geodinámica externa, no serán descritas, al igual que las inundaciones.   Se pretende con este mapa establecer un criterio de base para iniciar y difundir la conciencia de la necesidad de conceptualizar un adecuado ordenamiento territorial, de explotación racional de los recursos naturales y de mitigación preventiva de los desastres naturales.

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A pesquisa em viticultura de precisão deve ser conduzida por meio de zonas de manejo, que podem ser definidas por meio do mapeamento detalhado do solo. No entanto, em termos de pesquisa torna-se necessário avaliar a variabilidade espacial dos atributos do solo, fato que aumenta a demanda por recursos financeiros. Neste trabalho, compara-se a eficiência do mapeamento detalhado dos solos em relação à malha regular de amostragem para definição de zonas de manejo em viticultura de precisão, em estudo de caso no Vale dos Vinhedos, Bento Gonçalves, RS. O estudo sugere que ambos os métodos são complementares, existindo certa dependência com o tipo de solo, colocando em dúvida a possibilidade de eliminação de um dos métodos por motivos de custo.

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This paper reports on the performance of 58 11 to 12-year-olds on a spatial visualization task and a spatial orientation task. The students completed these tasks and explained their thinking during individual interviews. The qualitative data were analysed to inform pedagogical content knowledge for spatial activities. The study revealed that “matching” or “matching and eliminating” were the typical strategies that students employed on these spatial tasks. However, errors in making associations between parts of the same or different shapes were noted. Students also experienced general difficulties with visual memory and language use to explain their thinking. The students’ specific difficulties in spatial visualization related to obscured items, the perspective used, and the placement and orientation of shapes.

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Despite the numerous observations that dynamic capabilities lie at the source of competitive advantage, we still have limited knowledge as to how access to firm-based resources and changes to these affect the development of dynamic capabilities. In this paper, we examine founder human capital, access to employee human capital, access to technological expertise, access to other specific expertise, and access to two types of tangible resources in a sample of new firms in Sweden. We empirically measure four dynamic capabilities and find that the nature and effect of resources employed in the development of these capabilities vary greatly. For the most part, there are positive effects stemming from access to particular resources. However, for some resources, such as access to employee human capital and access to financial capital, unexpected negative effects also appear. This study therefore provides statistical evidence as to the varying role of resources in capability development. Importantly, we also find that changes in resource bases have more influential roles in the development of dynamic capabilities than the resource stock variables that were measured at an earlier stage of firm development. This provides empirical support for the notion of treating the firm as a dynamic flow of resources as opposed to a static stock. This finding also highlights the importance of longitudinal designs in studies of dynamic capability development. Further recommendations for future empirical studies of dynamic capabilities are presented.

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Manual calibration of large and dynamic networks of cameras is labour intensive and time consuming. This is a strong motivator for the development of automatic calibration methods. Automatic calibration relies on the ability to find correspondences between multiple views of the same scene. If the cameras are sparsely placed, this can be a very difficult task. This PhD project focuses on the further development of uncalibrated wide baseline matching techniques.

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This study has important implications for marketing theory and practice. In an era of turbulent market environments, the organisational ability to sense and seize market opportunities and to reconfigure the resource base accordingly, has significant effects on performance. This paper uses a dynamic capability framework to explain more explicitly the intricacies of the relationship between sensing and seizing of market opportunities and reconfiguring the resource base (i.e. dynamic capabilities) and the resource base. We investigate how the attributes of dynamic capability deployment, timing, frequency and speed, influence the resource base. We test the proposed framework using survey data from 228 large organisations. Findings show that the timing and frequency of dynamic capability deployment have significant effects on the resource base.

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A significant issue in primary teacher education is developing a knowledge base which prepares teachers to teach in a range of subject areas. In Australia, the problem in primary social science education is compounded by the integrated nature of the key learning area of Studies of Society and Environment (SOSE). Recent debates on teaching integrated social sciences omit discussions on the knowledge base for teaching. In this paper, a case study approach is used to investigate primary pre-service teachers’ approaches to developing a knowledge base in designing a SOSE curriculum unit. Data from five teacher-educators who taught primary SOSE curriculum indicates that novice teachers’ subject content knowledge, as revealed through their curriculum planning, lacked a disciplinary basis. However, understanding of inquiry learning, which is fundamental to social science education, was much stronger. This paper identifies a gap in the scholarship on teaching integrated social science and illustrates the need to support and develop primary teachers’ disciplinary knowledge in teacher education.

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Post-concussion syndrome (PCS) is a controversial constellation of cognitive, emotional, and physical symptoms that some patients experience following a mild traumatic brain injury or concussion. PCS-like symptoms are commonly found in individuals with depression, pain, and stress, as well as healthy individuals. This study investigated the base rate of PCS symptoms in a healthy sample of 96 participants and examined the relationship between these symptoms, depression, and sample demographics. PCS symptoms were assessed using the British-Columbia Post-Concussion Symptom Inventory. Depression was measured using the Beck Depression Inventory II. Results demonstrated that: The base rate of PCS was very high; there was a strong positive relationship between depression and PCS; and demographic characteristics were not related to PCS in this sample. These findings are broadly consistent with literature suggesting a significant role for non-neurological factors in the expression of PCS symptomatology. This study adds to the growing body of literature that calls for caution in the clinical interpretation of results from PCS symptom inventories.