913 resultados para urban development,
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Juniperus navicularis Gand. is a dioecious endemic conifer that constitutes the understory of seaside pine forests in Portugal, areas currently threatened by increasing urban expansion. The aim of this study is to assess the conservation status of previously known populations of this species located on its core area of distribution. The study was performed in south-west coast of Portugal. Three populations varying in size and pine density were analyzed. Number of individuals, population density, spatial distribution and individual characteristics of junipers were estimated. Female cone, seed characteristics and seed viability were also evaluated. Results suggest that J. navicularis populations are vulnerable because seminal recruitment is scarce, what may lead to a reduction of genetic variability due solely to vegetative propagation. This vulnerability seems to be strongly determined by climatic constraints toward increasing aridity. Ratio between male and female shrubs did not differ from 1:1 in any population. Deviations from 1:1 between mature and non-mature plants were found in all populations, denoting population ageing. Very low seed viability was observed. A major part of described Juniperus navicularis populations have disappeared through direct habitat loss to urban development, loss of fitness in drier and warmer locations and low seed viability. This study is the first to address J. navicularis conservation, and represents a valuable first step toward this species preservation.
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The commercial activity is and has been fundamental for the development of the society and our cities. We cannot forget that the medieval city was a market in itself. These urban spaces, as well as the new spaces generated after the different sales of Church lands, have been transforming continuously both from the point of view of urban development and social. In these spaces took place leisure activities as well as the exchanges and sales of products. Later, markets were transformed into covered spaces as we know today. Nowadays they are reflection objects. This abstract tries to make known the interesting and avant-garde Andujar Market, Pedro Rivas Ruiz`s architect work. It was built in 1949 and was inspired in Eduardo Torroja`s work with reinforced concrete. Its urban context`s relation explain this studio since the market was built on the place of the convent of San Francisco. This research is part of the result of the development of my thesis.
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La práctica y teorías de la planificación urbana han avanzado históricamente hacia la incorporación de temas y análisis intersectoriales, fundamentalmente aquellos en relación con la base territorial y el ambiente. En materia de zonificación urbana se han hecho esfuerzos por incorporar la variable ambiental a la planificación urbana. El presente artículo hace un recuento general de la evolución del concepto de zonificación tradicional hacia la zonificación ambiental territorial, la macrozonificación y la zonificación por rendimiento. Finalmente plantea el acercamiento metodológico planteado como parte de la estrategia de la Fase III del Plan Nacional de Desarrollo Urbano de Costa Rica en relación con la macrozonificación por rendimiento, como ejemplo de la puesta en práctica de las más recientes herramientas en la planificación urbano- regional de un Área Metropolitana (PRUGAM). Abstract:The Urban Planning practice and theory has historically developed towards the inclusion of more comprehensive themes and analyses, fundamentally those that are environmentally and territorially related. Within this context, urban zoning has made significant efforts to incorporate the environmental component in planning. The article makes a general account of the evolution of zoning from its traditional form to environmental land zoning, macro zoning and performance zoning. Finally it establishes the Costa Rica’s National Urban Development Plan methodological approach for its phase III with regards to performance macro zoning as an example of putting the more recent zoning and planning theories to practice in a regional Plan for a metropolitan area.
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En el presente artículo se desarrollan los aspectos principales dentro de la propuesta de planificación urbana de Costa Rica a través de la iniciativa del Plan Nacional de Desarrollo Urbano en sus diferentes fases de trabajo. Primeramente se realiza una breve descripción de los antecedentes principales de las fases I y II para luego describir lo que consistirá en la elaboración de un nuevo Plan GAM, denominado PRUGAM, y los requisitos necesarios para su implementación, bajo la visión del modelo de ciudad generada por procesos participat ivos. Además, se realiza una descripción del Plan GAM de 1982, sus alcances y logros, para luego realizar una evaluación de los mismos. Abstract:This article shows the main aspects included in the Costarrican proposal of urban planning throw the different phases of the Nacional Planning of Urban Development (PRUGAM). There is a description of the background of the project at its I and II phases, follow by what is will be the new Urban Plan call PRUGAM and the requirements to implementation following a participative city model. Also a description of the 1982 Plan GAM, its achievements, and evaluation is done
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Rationale- Chronic exposure to air pollution has been associated with adverse effects on children`s lung growth. Objectives: We analyzed the effects of chronic exposure to urban levels of particulate matter (PM) on selected phases of mouse lung development. Methods: The exposure occurred in two open-top chambers (filtered and nonfiltered) placed 20 m from a street with heavy traffic in Sao Paulo, 24 hours/day for 8 months. There was a significant reduction of the levels of PM(2.5) inside the filtered chamber (filtered = 2.9 +/- 3.0 mu g/m(3), nonfiltered = 16.8 +/- 8.3 mu g/m(3); P = 0.001). At this exposure site, vehicular sources are the major components of PM(2.5) (PM <= 2.5 mu m). Exposure of the parental generation in the two chambers occurred from the 10th to the 120th days of life. After mating and birth of offspring, a crossover of mothers and pups occurred within the chambers, resulting in four groups of pups: nonexposed, prenatal, postnatal, and pre+postnatal. Offspring were killed at the age of 15 (n = 42) and 90 (n = 35) days; lungs were analyzed by morphometry for surface to volume ratio (as an estimator of alveolization). Pressure-volume curves were performed in the older groups, using a 20-ml plethysmograph. Measurements and Main Results: Mice exposed to PM(2.5) pre+postnatally presented a smaller surface to volume ratio when compared with nonexposed animals (P = 0.036). The pre+postnatal group presented reduced inspiratory and expiratory volumes at higher levels of transpulmonary pressure (P = 0.001). There were no differences among prenatal and postnatal exposure and nonexposed animals. Conclusions: Our data provide anatomical and functional support to the concept that chronic exposure to urban PM affects lung growth.
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LUDA is a research project of Key Action 4 "City of Tomorrow & Cultural Heritage" of the programme "Energy, Environment and Sustainable Development" within the Fifth Framework Programme of the European Commission
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Dissertação para obtenção do Grau de Doutor em Engenharia do Ambiente
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IPH conducted a rapid HIA appraisal in response to the consultation on DSD Draft Regeneration Framework. The Department for Social Development (DSD) has developed a Draft Regeneration Framework for the North West Quarter Part 2 area of Belfast City Centre, to be known as the Northside Urban Village. The Framework, which outlines the vision for the redevelopment of an inner city area of Belfast was released for public consultation in April 2008. In responding to this consultation, the Institute of Public Health in Ireland (IPH) conducted a Health Impact Assessment (HIA) in order to assess how the proposed Framework might impact on the health of those living in or close to the area as well as the wider Belfast population. The key recommendations which resulted from this process have been presented to the Department. This paper presents an overview of the HIA conducted.
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The Institute of Public Health in Ireland is an all-island body which aims to improve health in Ireland by working to combat health inequalities and influence public policies in favour of health. The Institute promotes co-operation in research, training, information and policy in order to contribute to policies which tackle inequalities in health. Over the past ten years the Institute has worked closely with the Department of Health and Children and the Department of Health, Social Services and Public Safety in Northern Ireland to build capacity for public health across the island of Ireland. The Institute takes the view that health is determined by policies, plans and programmes in many sectors outside the health sector as well as being dependent on access to and availability of first class health services. The importance of other sectors is encapsulated in a social determinants of health perspective which recognises that health is largely shaped and influenced by the physical, social, economic and cultural environments in which people live, work and play. Figure 1 illustrates these multi-dimensional impacts on health and also serves to highlight the clear and inextricable links between health and sustainable development. Factors that impact on long-term sustainability will thus also impact on health.
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Currently, individuals including designers, contractors, and owners learn about the project requirements by studying a combination of paper and electronic copies of the construction documents including the drawings, specifications (standard and supplemental), road and bridge standard drawings, design criteria, contracts, addenda, and change orders. This can be a tedious process since one needs to go back and forth between the various documents (paper or electronic) to obtain information about the entire project. Object-oriented computer-aided design (OO-CAD) is an innovative technology that can bring a change to this process by graphical portrayal of information. OO-CAD allows users to point and click on portions of an object-oriented drawing that are then linked to relevant databases of information (e.g., specifications, procurement status, and shop drawings). The vision of this study is to turn paper-based design standards and construction specifications into an object-oriented design and specification (OODAS) system or a visual electronic reference library (ERL). Individuals can use the system through a handheld wireless book-size laptop that includes all of the necessary software for operating in a 3D environment. All parties involved in transportation projects can access all of the standards and requirements simultaneously using a 3D graphical interface. By using this system, users will have all of the design elements and all of the specifications readily available without concerns of omissions. A prototype object-oriented model was created and demonstrated to potential users representing counties, cities, and the state. Findings suggest that a system like this could improve productivity to find information by as much as 75% and provide a greater sense of confidence that all relevant information had been identified. It was also apparent that this system would be used by more people in construction than in design. There was also concern related to the cost to develop and maintain the complete system. The future direction should focus on a project-based system that can help the contractors and DOT inspectors find information (e.g., road standards, specifications, instructional memorandums) more rapidly as it pertains to a specific project.