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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

A ÁGUA DA VIDA E O SENTIDO DA VIDA.

Lazarin, Cleide 22 November 2013 (has links)
Made available in DSpace on 2016-07-27T13:48:27Z (GMT). No. of bitstreams: 1 CLEIDE LAZARIN.pdf: 4331080 bytes, checksum: 74b692e74b6b33f537e8dde9da913b4c (MD5) Previous issue date: 2013-11-22 / This research aims to reflect on the apocalyptic in the Old and New Testament in its context, with the object of particular attention is the meaning and symbolism of life and water particularly in Ap 22.1 to 5. The water of life, theme proposed in Ap 22.1 aims to bring hope, encouragement and comfort to communities persecuted by the Roman Empire in the late first century AD. Cherish the dream of justice and law as a raging river running through the land, bringing life to all parts of the planet. Water is a symbol of life in the process of reconstruction of the life and history in a context of persecution and death. It is a symbol of life when it comes to establish certainty and expectation of a new heaven and a new earth. It Presents a new paradise critically, creatively fruitful and eschatological hope and strength in new times and places in which they want to build relationships of equity, peace and abundance. Water is a symbol of death when it shelters the beasts, beasts and comes as avalanche chase ruining the lives of communities. / Esta investigação se propõe a refletir sobre a apocalíptica no Antigo e no Novo Testamento em seu contexto, tendo como objeto de peculiar atenção o significado e a simbologia da vida e da água de modo particular em Ap 22,1-5. A água da vida, tema proposto em Ap 22,1 tem por finalidade levar esperança, ânimo e conforto às comunidades perseguidas pelo Império Romano, no final do século I dC. Acalentar o sonho da justiça e do direito correndo como um rio caudaloso pela terra, levando vida a todas as partes do planeta. A água é símbolo de vida no processo de reconstrução da vida e da história em um contexto de perseguição e mortes. É símbolo de vida quando se trata de firmar a certeza e a expectativa de um novo céu e uma nova terra. Apresenta um novo paraíso de maneira crítica, criativa, fecunda e escatológica para a esperança e a resistência em novos tempos e lugares nos quais se quer construir relações de equidade, paz e abundância. A agua é símbolo de morte quando abriga as bestas, as feras e vem como avalanche de perseguição arruinando a vida das comunidades.
2

Evaluation of the sustainability of controlling diffuse water pollution in urban areas on a life cycle basis

Tomasini Montenegro, Claudia January 2013 (has links)
Diffuse water pollution in urban areas is growing due to polluted runoffs. Therefore, there is a need to treat this kind of pollution. Different structural treatment practices can be used for these purposes. However, little is known about their environmental, economic and social impacts. Therefore, the aim of this study has been to develop an integrated methodology for sustainability evaluation of structural treatment practices, considering environmental, economic and social aspects. Both environmental and economic evaluations have been carried out on a life cycle basis, using life cycle assessment and life cycle costing, respectively. For social evaluation, a number of social indicators, identified and developed in this research, have been used. The methodology has been applied to the case of the Magdalena river catchment in Mexico City. Three structural treatment practices have been analysed: bio-retention unit, infiltration trench and porous pavement. Based on the assumptions and the results from this work, the bio-retention unit appears to be environmentally the most sustainable option for treatment of diffuse water pollution. It is also the second-best option for social sustainability, slightly behind the porous pavement. However, if the costs of treatment are the priority, then the porous pavement would be the cheapest option. If all the sustainability aspects evaluated here are considered of equal importance, then the bio-retention unit is the most sustainable option. Therefore, trade-offs between the different sustainability aspects are important and should be considered carefully before any decisions are made on diffuse water pollution treatment. This also includes the trade-offs with the additional life cycle impacts generated by the treatment options compared to the impacts from the untreated runoff. The decisions can only be made by the appropriate stakeholders; however, some recommendations are given, based on the outcomes of this research.
3

Is the shelf life of bottled water a cause for concern?

Liee, Yvone Lieketseng 08 1900 (has links)
Thesis. (M. Tech (Biotechnology, Faculty of Applied and Computer Science))--Vaal University of Technology, 2011. / Bottled water like any drinking water used for human consumption should be safe and wholesome to ensure adequate public health protection. This is due to potential health effects of concern such as endocrine disruption, toxicity teratogenicity, mutagenicity and carcinogenicity. Despite the number of regulatory bodies, publications on bottled water and speculations on its public health significance, many questions remain to be answered. One of the questions is whether the shelf life of bottled water is a cause for concern. The aim of the study was to determine the shelf-life of various commercial bottled waters by monitoring the variation in microbiological, chemical and aesthetic qualities of bottled water. A total of five commercial bottled water brands (A, B, C, D, E) each containing bottles from the same batch consisting of spring water, mineral water and bottled tap water were purchased directly after being bottled from different distributors around Gauteng in South Africa. All samples were stored at room temperature with artificial lighting and controlled temperature for a year thus mimicking typical conditions in retail outlets, supermarkets and in homes. Analyses were conducted over a period of 12 months, at monthly intervals. Within days of being purchased, high Heterotrophic plate counts (HPC) bacteria exceeding drinking water alert level >5 000 cfu/ml was common in four bottled water brands. Growth succession occurred during the period of study as various algal species were growing and accumulating on all bottled water tested. Total coliforms (TC), faecal coliforms (FC) and E.coli were not detected in all the bottled water tested. Yeasts and moulds were also not detected in all the bottled water. There were insignificant variations during the period of study for turbidity, pH, TDS, conductivity, and colour. These did not indicate any potential impact on aesthetic quality of bottled water. Two bottled water brands had hardness measures as low as 11mg/ℓ as CaCO3 making the water too soft which has an effect on taste. Radioactive substances, trihalomethanes, heavy metals, pesticides and other chemical contaminants were not found at levels that can be detrimental to human health.

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