990 resultados para Underhead passage


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Aquest treball gira entorn a la controvèrsia que, des de finals del segle XIX, va generar el passatge de les Confessions (VIII, 6-12) on Agustí relata la seva crisi decisiva, viscuda a Milà l'estiu de l'any 386, que l'acabaria portant a l'aparent definitiva conversió al cristianisme. Els motius de fons de la controvèrsia són dos de clars. En primer lloc, i a la llum del que nosaltres entenem per gènere autobiogràfic, s'imposa aclarir si un relat com el de les Confessions s'hi pot adscriure, i per tant si ens relata una sèrie d'esdeveniments viscuts per Agustí històricament, o bé si cal interpretar els elements que l'autor desplega al llarg de la narració com a símbols d'un missatge que supera la narració que es troba a la superfície. La segona qüestió, directament vinculada a la primera, és el sentit que cal donar a aquesta conversió en relació a la noció de forma de vida filosòfica, i la influència que tindrà aquesta noció en la biografia i el pensament d'Agustí.

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RESUMO: Este trabalho pretende desenvolver de forma teórica, conceitual e histórica a questão da cidadania no cenário do CEFYA, percebendo a passagem da ideia de cidadania do plano ideal para as realidades práticas vivenciadas na escola. O objetivo desta pesquisa é a compreensão do processo de construção da cidadania em uma escola pública do Tocantins na perspectiva dos alunos do 9º ano da referida escola. Inicialmente foi feito um estudo sobre as principais compreensões de cidadania construídas desde a antiguidade até os tempos atuais, bem como, um resgate de educação popular no Brasil. Daí a compreensão da cidadania como efetivação da dignidade humana e, no âmbito da escola, como direito a participação, a formação de uma consciência crítica e ao respeito à diversidade. O trabalho de identificação do exercício da cidadania no âmbito da escola foi feito através da análise de documentos da própria escola, de questionários e partilha em grupo com os alunos do 9º ano. O estudo evidenciou que o Centro Educacional desenvolve uma pedagogia participativa de pais, da sociedade e da escola, propiciando experiências construtoras de cidadania, relativo à agregação da família, vivência comunitária etc. Portanto, existe no Centro Educacional uma preocupação em qualificar o projeto político-pedagógico e elaborar projetos que são importantes para o avanço dos processos participativos e comunitário. À luz de reflexões críticas, especialmente de Paulo Freire, chega-se à conclusão de que o CEFYA avançou muito nas experiências de cidadania visando à superação das práticas pedagógicas tradicionais. Esse avanço está embasado numa práxis libertadora-emacipatória, fundamentada no diálogo. O Centro Educacional torna-se, a cada dia, num espaço de formação de cidadãos conscientes, críticos e dialógicos. Para tanto, o conhecimento deste ambiente escolar cresce em cidadania, por vir acompanhado de relações democráticas, dialógicas e participativas. ABSTRACT: This work aims to develop a theoretical, conceptual and historical issues of citizenship in the scenario CEFYA, noting the passage of the idea of citizenship ideal plan for the practical realities experienced in school. The objective of this research is the understanding of the construction of citizenship in a public school in Tocantins from the perspective of students in 9th grade of that school. Initially a study was done on the main understandings of citizenship built from ancient to modern times, as well as a recovery of popular education in Brazil. Hence the understanding of citizenship and human dignity and effectiveness within the school, as the right to participation, the formation of a critical awareness and respect for diversity. The identification of the work of citizenship within the school was done by examining documents of the school, questionnaires and group sharing with students in 9th grade. The study showed that the Educational Center develops a participative pedagogy of parents, school and society, providing experience building citizenship on the aggregation of family, community life etc.. Therefore, there is a concern in the Educational Center in describing the political-pedagogical project and develop projects that are important for the advancement of participatory processes and community. In the light of critical reflection, especially Paulo Freire, one comes to the conclusion that the CEFYA progressed much on the experiences of citizenship in order to overcome the traditional pedagogical practices. This progress is rooted in a liberating praxis based on dialogue. The School changes every day, and raise students within a formation of concerned citizens, critical and dialogic. Thus, the knowledge of the school environment grows in citizenship, together with democratic relations, dialogical and participatory.

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Em início do século XX, no ano de 1905, no momento que se afigurou promissor, foi fundado o Colégio Americano Batista-C.A.B. Já predominava no Brasil o ensino religioso ministrado pelos Jesuítas vindos de Portugal. Fora um trabalho evangelístico-educacional, numa concepção de reeligere, numa cosmovisão unirreligiosa. Os conteúdos dessa disciplina ficavam sob a responsabilidade da igreja, visto ser ela considerada à única com habilidades plausíveis. José Eduardo Franco, (2006, p.311), em seu artigo O mito dos Jesuítas em Portugal - século XVI-XX menciona que “Portugal não teve, no seu território, nenhuma origem religiosa que tivesse obtido em tão elevado grau, o prestígio e o renome, que a partir de 1540, os Jesuítas conquistaram. Mas também nenhuma outra instituição religiosa foi julgada de forma tão dupla contraditória”. A despeito das possíveis qualidades do trabalho efetuado pelos Jesuítas, ou porventura, o aflorar de suas limitações, não é o que neste trabalho de pesquisa pretendemos analisar particularmente. Propomos investigar como o ensino religioso protestante tem influenciado a educação do Colégio Americano Batista desde as suas origens à atualidade sem excluir a promulgação da Lei de Diretrizes e Bases da Educação Nacional-9.394/96 e com a estrutura do ensino religioso mediante a produção dos Parâmetros Curriculares Nacionais-PCNs. Utilizamos como material empírico os depoimentos de docentes, discentes, e de toda a equipe técnica e pedagógica desta instituição. Pretendemos com tal metodologia assegurar a dimensão da influência do Ensino Religioso na educação como agente transformador na sociedade. Compreendemos a relevância desta pesquisa, à medida que observamos a interação do diálogo interreligioso e o avanço obtido quanto à concepção catequética numa passagem para uma nova concepção de ensino religioso, na concepção do sentido para a vida.

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A presente dissertação tem como objectivo reflectir sobre as condições funcionais da Praça da República, nas Caldas da Rainha, no domínio da sua regeneração e das potencialidades económicas e sociais, no sentido de apresentar uma solução, entre outras possíveis, como contributo para futuras intervenções. Ao estudo da Praça da República das Caldas da Rainha associou-se o caso da Praça do Mercado de Cambridge, na Inglaterra, fundamental como termo de comparação no sentido de tentar regenerar a Praça da República. A dissertação desenvolve-se em três partes. A primeira parte centra-se numa apresentação generalista e exemplificativa das praças, com destaque para as suas formas e funções. Na segunda parte, procedemos a uma observação pormenorizada do caso de Cambridge, em relação ao seu funcionamento, tipo de vendas e intervenções. Por último, na terceira parte, para além de procedermos a um exame pormenorizado da Praça da República, em relação aos seus problemas, à sua importância e ao estado de conservação dos edifícios envolventes, finalizamos com uma proposta de intervenção. O estudo desenvolvido neste trabalho permitiu-nos concluir que esta praça necessita, urgentemente, de uma intervenção que corrija a situação de decadência em que se encontra e dê solução a problemas de acessibilidade, limpeza, estacionamento, para além de necessitar da construção de um edifício de apoio que torne este espaço acolhedor e agradável e que não seja apenas local fortuito de passagem.

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Estudio que explora la manera en que se construye el archivo colonial a través de mecanismos jurídico-administrativos, dedicados a ejercer el control sobre las poblaciones subordinadas y el mantenimiento del poder colonial. El paso del testimonio oral, de los indígenas, al documento escrito, característico de la cultura letrada española, representó un desafío cultural. Paulatinamente, los indígenas aprendieron a usar el documento escrito y a emprender litigios judiciales. El control burocrático de la monarquía española dependió centralmente del uso y archivo de la documentación escrita y del papel que jugaron los letrados.

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Este artículo analiza los conflictos que produjo el paso del ferrocarril por Riobamba. Describe la lucha por la rectificación de la vía férrea, que enlazaba las ciudades de Guayaquil y Quito, y subraya las pugnas y aspiraciones locales relacionadas con el nuevo medio de transporte. Señala las reacciones de la opinión pública riobambeña, expuestas en su prensa local, y las posturas tanto de los gobiernos como de la empresa que construyó la obra. Además, estudia las consecuencias que se derivaron del paso del ferrocarril: la ampliación del mercado interno como consecuencia del incremento del comercio interregional, el desarrollo de los poblados situados a lo largo del trazado ferroviario y la aceleración del intercambio de personas y bienes.

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In recent years, the eastern foothills of the Rocky Mountains in northeastern British Columbia have received interest as a site of industrial wind energy development but, simultaneously, have been the subject of concern about wind development coinciding with a known migratory corridor of Golden Eagles (Aquila chrysaetos). We tracked and quantified eagle flights that crossed or followed ridgelines slated for one such wind development. We found that hourly passage rates during fall migration peaked at midday and increased by 17% with each 1 km/h increase in wind speed and by 11% with each 1°C increase in temperature. The propensity to cross the ridge tops where turbines would be situated differed between age classes, with juvenile eagles almost twice as likely to traverse the ridge-top area as adults or subadults. During fall migration, Golden Eagles were more likely to cross ridges at turbine heights (risk zone, < 150 m above ground) under headwinds or tailwinds, but this likelihood decreased with increasing temperature. Conversely, during spring migration, eagles were more likely to move within the ridge-top area under eastern crosswinds. Identifying Golden Eagle flight routes and altitudes with respect to major weather systems and local topography in the Rockies may help identify scenarios in which the potential for collisions is greatest at this and other installations.

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Sudden stratospheric warmings (SSWs) are usually considered to be initiated by planetary wave activity. Here it is asked whether small-scale variability (e.g., related to gravity waves) can lead to SSWs given a certain amount of planetary wave activity that is by itself not sufficient to cause a SSW. A highly vertically truncated version of the Holton–Mass model of stratospheric wave–mean flow interaction, recently proposed by Ruzmaikin et al., is extended to include stochastic forcing. In the deterministic setting, this low-order model exhibits multiple stable equilibria corresponding to the undisturbed vortex and SSW state, respectively. Momentum forcing due to quasi-random gravity wave activity is introduced as an additive noise term in the zonal momentum equation. Two distinct approaches are pursued to study the stochastic system. First, the system, initialized at the undisturbed state, is numerically integrated many times to derive statistics of first passage times of the system undergoing a transition to the SSW state. Second, the Fokker–Planck equation corresponding to the stochastic system is solved numerically to derive the stationary probability density function of the system. Both approaches show that even small to moderate strengths of the stochastic gravity wave forcing can be sufficient to cause a SSW for cases for which the deterministic system would not have predicted a SSW.

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The Neolithic chambered tombs of Bohuslan on the west coast of Sweden were built out of locally occurring raw materials. These exhibit a wide variety of colours, textures and mineral inclusions, and all were used to contrive a series of striking visual effects. Certain of these would have been apparent to the casual observer but others would only have been apparent to someone inside the passage or the burial chamber. There is no evidence that the materials were organized according to a single scheme. Rather, they permitted a series of improvisations, so that no two monuments were exactly alike. The effects that they created are compared with those found in megalithic art where the design elements were painted or carved, but in Bohuslan all the designs were created using the natural properties of the rock.

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Temporal and spatial variability of aerosol optical depth (AOD) are examined using observations of direct solar radiation in the Eurasian Arctic for 1940-1990. AOD is estimated using empirical methods for 14 stations located between 66.2 degrees N and 80.6 degrees N, from the Kara Sea to the Chukchi Sea. While AOD exhibits a well-known springtime maximum and summertime minimum at all stations, atmospheric turbidity is higher in spring in the western (Kara-Laptev) part of the Eurasian Arctic. Between June and August, the eastern (East Siberian-Chukchi) sector experiences higher transparency than the western part. A statistically significant positive trend in AOD was observed in the Kara-Laptev sector between the late 1950s and the early 1930s predominantly in spring when pollution-derived aerosol dominates the Arctic atmosphere but not in the eastern sector. Although all stations are remote, those with positive trends are located closer to the anthropogenic sources of air pollution. By contrast, a widespread decline in AOD was observed between 1982 and 1990 in the eastern Arctic in spring but was limited to two sites in the western Arctic. These results suggest that the post-1982 decline in anthropogenic emissions in Europe and the former Soviet Union has had a limited effect on aerosol load in the Arctic. The post-1982 negative trends in AOD in summer, when marine aerosol is present in the atmosphere, were more common in the west. The relationships between AOD and atmospheric circulation are examined using a synoptic climatology approach. In spring, AOD depends primarily on the strength and direction of air flow. Thus strong westerly and northerly flows result in low AOD values in the East Siberian-Chukchi sector. By contrast, strong southerly flow associated with the passage of depressions results in high A OD in the Kara-Laptev sector and trajectory analysis points to the contribution of industrial regions of the sub-Arctic. In summer, low pressure gradient or anticyclonic conditions result in high atmospheric turbidity. The frequency of this weather type has declined significantly since the early 1980s in the Kara-Laptev sector, which partly explains the decline in summer AOD values. (c) 2004 Elsevier B.V. All rights reserved.

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On 17 August 2007, the center of Hurricane Dean passed within 92 km of the mountainous island of Dominica in the West Indies. Despite its distance from the island and its category 1–2 state, Dean brought significant total precipitation exceeding 500 mm and caused numerous landslides. Four rain gauges, a Moderate Resolution Imaging Spectroradiometer (MODIS) image, and 5-min radar scans from Guadeloupe and Martinique are used to determine the storm’s structure and the mountains’ effect on precipitation. The encounter is best described in three phases: (i) an east-northeast dry flow with three isolated drifting cells; (ii) a brief passage of the narrow outer rainband; and (iii) an extended period with south-southeast airflow in a nearly stationary spiral rainband. In this final phase, from 1100 to 2400 UTC, heavy rainfall from the stationary rainband was doubled by orographic enhancement. This enhancement pushed the sloping soils past the landslide threshold. The enhancement was caused by a modified seeder–feeder accretion mechanism that created a “dipole” pattern of precipitation, including a dry zone over the ocean in the lee. In contrast to normal trade-wind conditions, no terrain triggering of convection was identified in the hurricane environment.

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In paper 1, we showed that the Heliospheric Imager (HI) instruments on the pair of NASA STEREO spacecraft can be used to image the streamer belt and, in particular, the variability of the slow solar wind which originates near helmet streamers. The observation of intense intermittent transient outflow by HI implies that the corresponding in situ observations of the slow solar wind and corotating interaction regions (CIRs) should contain many signatures of transients. In the present paper, we compare the HI observations with in situ measurements from the STEREO and ACE spacecraft. Analysis of the solar wind ion, magnetic field, and suprathermal electron flux measurements from the STEREO spacecraft reveals the presence of both closed and partially disconnected interplanetary magnetic field lines permeating the slow solar wind. We predict that one of the transients embedded within the second CIR (CIR‐D in paper 1) should impact the near‐Earth ACE spacecraft. ACE measurements confirm the presence of a transient at the time of CIR passage; the transient signature includes helical magnetic fields and bidirectional suprathermal electrons. On the same day, a strahl electron dropout is observed at STEREO‐B, correlated with the passage of a high plasma beta structure. Unlike ACE, STEREO‐B observes the transient a few hours ahead of the CIR. STEREO‐A, STEREO‐B, and ACE spacecraft observe very different slow solar wind properties ahead of and during the CIR analyzed in this paper, which we associate with the intermittent release of transients.

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The suite of SECCHI optical imaging instruments on the STEREO-A spacecraft is used to track a solar storm, consisting of several coronal mass ejections (CMEs) and other coronal loops, as it propagates from the Sun into the heliosphere during May 2007. The 3-D propagation path of the largest interplanetary CME (ICME) is determined from the observations made by the SECCHI Heliospheric Imager (HI) on STEREO-A (HI-1/2A). Two parts of the CME are tracked through the SECCHI images, a bright loop and a V-shaped feature located at the rear of the event. We show that these two structures could be the result of line-of-sight integration of the light scattered by electrons located on a single flux rope. In addition to being imaged by HI, the CME is observed simultaneously by the plasma and magnetic field experiments on the Venus Express and MESSENGER spacecraft. The imaged loop and V-shaped structure bound, as expected, the flux rope observed in situ. The SECCHI images reveal that the leading loop-like structure propagated faster than the V-shaped structure, and a decrease in in situ CME speed occurred during the passage of the flux rope.We interpret this as the result of the continuous radial expansion of the flux rope as it progressed outward through the interplanetary medium. An expansion speed in the radial direction of ~30 km s-1 is obtained directly from the SECCHI-HI images and is in agreement with the difference in speed of the two structures observed in situ. This paper shows that the flux rope location can be determined from white light images, which could have important space weather applications.

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The images taken by the Heliospheric Imagers (HIs), part of the SECCHI imaging package onboard the pair of STEREO spacecraft, provide information on the radial and latitudinal evolution of the plasma compressed inside corotating interaction regions (CIRs). A plasma density wave imaged by the HI instrument onboard STEREO-B was found to propagate towards STEREO-A, enabling a comparison between simultaneous remotesensing and in situ observations of its structure to be performed. In situ measurements made by STEREO-A show that the plasma density wave is associated with the passage of a CIR. The magnetic field compressed after the CIR stream interface (SI) is found to have a planar distribution. Minimum variance analysis of the magnetic field vectors shows that the SI is inclined at 54° to the orbital plane of the STEREO-A spacecraft. This inclination of the CIR SI is comparable to the inclination of the associated plasma density wave observed by HI. A small-scale magnetic cloud with a flux rope topology and radial extent of 0.08 AU is also embedded prior to the SI. The pitch-angle distribution of suprathermal electrons measured by the STEREO-A SWEA instrument shows that an open magnetic field topology in the cloud replaced the heliospheric current sheet locally. These observations confirm that HI observes CIRs in difference images when a small-scale transient is caught up in the compression region.

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Current feed evaluation systems for dairy cattle aim to match nutrient requirements with nutrient intake at pre-defined production levels. These systems were not developed to address, and are not suitable to predict, the responses to dietary changes in terms of production level and product composition, excretion of nutrients to the environment, and nutrition related disorders. The change from a requirement to a response system to meet the needs of various stakeholders requires prediction of the profile of absorbed nutrients and its subsequent utilisation for various purposes. This contribution examines the challenges to predicting the profile of nutrients available for absorption in dairy cattle and provides guidelines for further improved prediction with regard to animal production responses and environmental pollution. The profile of nutrients available for absorption comprises volatile fatty acids, long-chain fatty acids, amino acids and glucose. Thus the importance of processes in the reticulo-rumen is obvious. Much research into rumen fermentation is aimed at determination of substrate degradation rates. Quantitative knowledge on rates of passage of nutrients out of the rumen is rather limited compared with that on degradation rates, and thus should be an important theme in future research. Current systems largely ignore microbial metabolic variation, and extant mechanistic models of rumen fermentation give only limited attention to explicit representation of microbial metabolic activity. Recent molecular techniques indicate that knowledge on the presence and activity of various microbial species is far from complete. Such techniques may give a wealth of information, but to include such findings in systems predicting the nutrient profile requires close collaboration between molecular scientists and mathematical modellers on interpreting and evaluating quantitative data. Protozoal metabolism is of particular interest here given the paucity of quantitative data. Empirical models lack the biological basis necessary to evaluate mitigation strategies to reduce excretion of waste, including nitrogen, phosphorus and methane. Such models may have little predictive value when comparing various feeding strategies. Examples include the Intergovernmental Panel on Climate Change (IPCC) Tier II models to quantify methane emissions and current protein evaluation systems to evaluate low protein diets to reduce nitrogen losses to the environment. Nutrient based mechanistic models can address such issues. Since environmental issues generally attract more funding from governmental offices, further development of nutrient based models may well take place within an environmental framework.