Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 83 for “"Coastal environments"”.
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Common plastics degradation in coastal environments
… the production of microplastics seems to be the coastal one. In order to increase knowledge on the degradation of plastics in this environment, in situ experiments were conducted in sub coastal environments to test the degradation of six commonly used types of plastics and the possible factors …
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Phenomenology in a wetsuit : understanding biophilia in pacific coastal environments
… individuals develop emotional relationships with coastal environments; (2) what role the ocean plays in emotional change; (3) how individuals act in response to their relationships with the coast. Analysis included grouping themes from observation notes, questionnaires, and Interpretative …
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Broadband acoustical scattering in coastal environments: application to gelatinous organisms
… could interfere with acoustical operations in coastal environments; however, the density and size distribution of the bubbles must be known to assess their impacts. This dissertation addresses these deficiencies in our application of broadband techniques. In Chapter 2, a sound scattering model …
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Atmospheric deposition of trace metals to urban and coastal environments
The atmospheric flux (wet and dry) of trace metals (Ni, Co. Cu, Pb, Cd, Al and Na) to the Irish Sea and the North-West of England is presented. The fluxes were calculated from determined trace metal concentrations of aerosols (Al, Fe, Mn, Cd, Co, Cr, Cu, Na, Ni, Pb, V and Zn) and rainwaters (Ni, …
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Quantitative Methodology for Measuring Natural Character in New Zealand's Coastal Environments
Anecdotal evidence points to an overall loss of coastal natural character in New Zealand since preserving the natural character of the coastal environment first became a statutory policy-goal in 1973. Today the preservation of the natural character of the coastal environment is one of the matters …
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Integrated approaches for monitoring and modeling vegetation in riparian and coastal environments
L'abstract è presente nell'allegato / the abstract is in the attachment
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Understanding the source and distribution of marine macro-plastics in coastal environments
… litter can enter the open ocean directly, or via coastal waters and then through numerous hydrological processes is transported to the open ocean, and potentially dispersed vast distances. The spatial and temporal variability of plastic marine litter is complex due to the interaction between …
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Breakwater Enhancement: Redesign Tetrapod Structures for Resilient Coastal Environments and Marine Ecosystem Rehabilitation
Global coastal erosion, exacerbated by climate change, poses a pressing threat with widespread repercussions, necessitating innovative and sustainable solutions. Tetrapod structures, while effective in coastal defense, suffer from their drawbacks, including substantial carbon emissions from …
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Broadband acoustical scattering in coastal environments: application to gelatinous organisms and gas microbubbles
… could interfere with acoustical operations in coastal environments; however, the density and size distribution of the bubbles must be known to assess their impacts. This dissertation addresses these deficiencies in our application of broadband techniques. In Chapter 2, a sound scattering model …
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Quantitative Studies of Late Neogene Coastal Environments Using Bivalve Subfossil and Fossil Assemblages
Coastal environments are important in many ways: they provide food and energy for coastal communities, have a variety of unique biologic habitats, and influence global climate. These environments can change due to either anthropogenic or natural phenomena over a wide range of time scales. However, …
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Investigations into actinomycetes isolated from coastal environments, with a special emphasis on the genus Micromonospora
Marine environments were investigated and actinomycetes were isolated on selective media. Thirty-four (34) actinomycete strains were isolated and identified: 21 Micromonospora strains, 10 Streptomyces strains, and 3 Pseudonocardia strains. A polyphasic approach was employed to determine the novelty …
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Influence of Geotechnical Properties on Sediment Dynamics, Erodibility, and Geomorphodynamics in Coastal Environments Based on Field Measurements
… strength have been discussed in the context of coastal sediment dynamics. However, these properties have rarely been assessed in their respective relevance or quantitatively related to sediment transport and erodibility. Also, to date there is no framework available for collecting direct …
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Development and Standardization of a Short-Term Assay for Evaluating Polluted Estuarine and Coastal Environments: The Medaka Embryo-Larval Assay
<p>The eggs of the Japanese medaka (Oryzias latipes) were employed in a number of studies to develop a routine, standardized assay which can assess the acute and sublethal impacts of individual toxicants and complex mixtures. The eggs of this Cyprinodont minnow were topically treated with each …
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Practical Use of Ground Penetrating Radar: A Survey of Coastal Historic Cemeteries in Brevard County, Florida
… Penetrating Radar (GPR) research conducted in coastal environments is one area that is lacking in archaeology. Surveys conducted in this type of environment afford the opportunity to evaluate the practical use GPR under field conditions. Coastal environments are effective for this evaluation …
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Persistent pharmaceutical concentrations in an urban Western Cape Estuary and the effects on microalgal assemblages
Coastal environments comprise distinct and diverse ecosystems of economic and ecological significance that provide invaluable ecosystem functions and services to humans. Despite their significance, coastal environments worldwide are experiencing deterioration due to the growth of the human …
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Predicting risks from acoustic deterrents
… and long-term use of these devices in coastal environments could pose<br/>considerable risks for target (pinnipeds) and non-target (e.g., cetaceans) species which also<br/>inhabit areas adjacent to aquaculture. This thesis contributes new knowledge towards our<br/>understanding of the …
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Nutritional consequences of prehistoric subsistence strategies in lower Central America
… prehistoric populations that inhabited tropical coastal environments in lower Central America during the period from 5000 B.C. to A.D. 1550. The subsistence bases of archaeological populations are reconstructed using the stable carbon and stable nitrogen isotopic composition of human bone …
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Numerical and Data Analysis of a Portable Free Fall Penetremeter
Coastal environments are among the most economically and environmentally significant regions on Earth. However, rising sea levels and increasingly frequent storms driven by climate change pose growing risks to these critical zones. Understanding and predicting the evolution of coastal environments …
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Evoluzione naturale ed impatto antropico sui sistemi costieri della Penisola del Sinis (Sardegna centro occidentale)
All over the world the coastal strip has suffered over the centuries the presence and the activities of the human beings: the historical needs of defending the countries from the invasions and to exploit natural resources for subsistence, have caused significant impacts on coastal environments, …
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