The city shaped through the railway line: Albergaria-a-Velha, Portugal (1908-2018)

The construction of the railway lines in the cities has led to relevant territorial transformations and instigated the first urban planning operations all over the world. In Portugal, the deployment of the railway line — even though late in the second half of the 19th century — had a crucial role in the transformation of the territory. This article analyses the relationships between the implementation of the railways and the urban development. This is clarified with the case study of the city of Albergaria-a-Velha, in Portugal, which takes part in the largest railway system named “Vale do Vouga” line. The article is organized into three main moments. First, the implementation of the railways in the cities, in general, is addressed. Then, in a second moment, the implementation of the railways in Portugal is studied. Finally, the article focuses on the case of Albergaria-a-Velha and the way the railways relate to the urban development in this territory. It was found that, initially, the deployment of the train line in Albergaria-a-Velha was not too invasive in the territory, occupying predominantly agricultural lands. Also, it is noticed that Albergaria-a-Velha suffered its greatest urban growth during the early 70s of the 20th century. This came about abruptly and unregulated, similarly to what occurred in several other cities during this period. In the current urban structure, the railway line is an element that clearly divides the city. But still, over time, the railway line was responsible for moments in which the city was redesigned and adapted to it, through the new buildings and streets. In fact, the railway line had an important role in the regulation of the urban fabric, shaping and defining the urban growth in Albergaria-a-Velha. We conclude that the railway line produces two opposite effects in the urban design of Albergaria-a-Velha. It regulates the space, but acts simultaneously as a barrier. Not only it conditions the roads that it crosses, but also conditions the limits on the development of urban form, while not preventing the urban growth.info:eu-repo/semantics/publishedVersio

Charge Influence On Mini Black Hole's Cross Section

In this work we study the electric charge effect on the cross section production of charged mini black holes (MBH) in accelerators. We analyze the charged MBH solution using the {\it fat brane} approximation in the context of the ADD model. The maximum charge-mass ratio condition for the existence of a horizon radius is discussed. We show that the electric charge causes a decrease in this radius and, consequently, in the cross section. This reduction is negligible for protons and light ions but can be important for heavy ions.Comment: 4 pages, 0 figure. To be published in Int. J. Mod. Phys. D

Determinação da relação solo planta em pomar de citros com diferentes combinações copa/porta-enxerto.

A importância socioeconômica da citricultura no Nordeste brasileiro é incontestável. No entanto, problemas como a distribuição irregular de chuva na região onde se localizam os pomares - concentrada em seis a oito meses do ano - interferem de forma direta no crescimento e desenvolvimento das plantas. Em função disso, a busca de genótipos tolerantes a deficiência hídrica é crucial para a permanência da citricultura nesse território

Basketball game-related statistics that discriminate between teams season-long success

The aim of the present study was to identify the game-related statistics that discriminate between season-long successful and unsuccessful basketball teams participating in the Spanish Basketball League (LEB1). The sample included all 145 average records per season from the 870 games played between the 2000-2001 and the 2005-2006 regular seasons. The following game-related statistics were gathered from the official box scores of the Spanish Basketball Federation: 2- and 3-point field-goal attempts (both successful and unsuccessful), free-throws (both successful and unsuccessful), defensive and offensive rebounds, assists, steals, turnovers, blocks (both made and received), and fouls (both committed and received). To control for season variability, all results were normalized to minutes played each season and then converted to z-scores. The results allowed discrimination between best and worst teams' performances through the following game-related statistics: assists (SC=0.47), steals (SC=0.34), and blocks (SC=0.30). The function obtained correctly classified 82.4% of the cases. In conclusion, season-long performance may be supported by players' and teams' passing skills and defensive preparation

Effects of Inelastic Neutrino-Nucleus Scattering on Supernova Dynamics and Radiated Neutrino Spectra

Based on the shell model for Gamow-Teller and the Random Phase Approximation for forbidden transitions, we have calculated reaction rates for inelastic neutrino-nucleus scattering (INNS) under supernova (SN) conditions, assuming a matter composition given by Nuclear Statistical Equilibrium. The rates have been incorporated into state-of-the-art stellar core-collapse simulations with detailed energy-dependent neutrino transport. While no significant effect on the SN dynamics is observed, INNS increases the neutrino opacities noticeably and strongly reduces the high-energy tail of the neutrino spectrum emitted in the neutrino burst at shock breakout. Relatedly the expected event rates for the observation of such neutrinos by earthbound detectors are reduced by up to about 60%.Comment: 4 pages, 2 figures, 1 tabl

Scalar Casimir Effect on a D-dimensional Einstein Static Universe

We compute the renormalised energy momentum tensor of a free scalar field coupled to gravity on an (n+1)-dimensional Einstein Static Universe (ESU), RxS^n, with arbitrary low energy effective operators (up to mass dimension n+1). A generic class of regulators is used, together with the Abel-Plana formula, leading to a manifestly regulator independent result. The general structure of the divergences is analysed to show that all the gravitational couplings (not just the cosmological constant) are renormalised for an arbitrary regulator. Various commonly used methods (damping function, point-splitting, momentum cut-off and zeta function) are shown to, effectively, belong to the given class. The final results depend strongly on the parity of n. A detailed analytical and numerical analysis is performed for the behaviours of the renormalised energy density and a quantity `sigma' which determines if the strong energy condition holds for the `quantum fluid'. We briefly discuss the quantum fluid back-reaction problem, via the higher dimensional Friedmann and Raychaudhuri equations, observe that equilibrium radii exist and unveil the possibility of a `Casimir stabilisation of Einstein Static Universes'.Comment: 37 pages, 15 figures, v2: minor changes in sections 1, 2.5, 3 and 4; version published in CQ

Avaliação de Algumas Medidas de Dissimilaridade de Simetria Ajustável

XIV JORNADAS DE CLASSIFICAÇÃO E ANÁLISE DE DADOS, Porto, 2007As medidas, ou coeficientes, de similaridade utilizados habitualmente no cálculo da proximidade entre duas entidades destinam-se a dados simétricos, ou a dados assimétricos. Neste artigo são apresentados coeficientes de similaridade de simetria ajustável, propostos recentemente, e é avaliada a distorção que produzem numa classificação, usando vários critérios de aglomeração hierárquica aplicados e três conjuntos diferentes de dados. Estendeu-se a avaliação feita anteriormente a três conjuntos de dados. Na avaliação compararam-se os valores obtidos com uma versão simplificada desses coeficientes com os obtidos usando os correspondentes coeficientes simétricos e assimétricos. Os resultados obtidos com os coeficientes de simetria ajustável foram superiores aos obtidos com os outros dois tipos de coeficientes.info:eu-repo/semantics/publishedVersio

Caracterização biofísica e aptidão agrícola das terras em áreas de projeto de assentamento oficial: PA São Francisco.

Caracterização da área; Clima; Vegetação; Geologia e geomorfologia; Mapeamento das unidades de solo; Argissolos vermelho-amarelos; Cambissolos háplicos; Plintossolos argilúvicos; Gleissolos háplicos; Neossolos flúvicos; Avaliação da aptidão agrícola das terras; Classes de aptidão agrícola das terras.bitstream/item/63435/1/Oriental-Doc136.pd