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 17 of 17 for “"Transitional zone"”.
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Celebration of the edge: Old Town Alexandria waterfront, Alexandria, Virginia: a collage of architectural and landscape elements engaged in the transition from land to water
… can acknowledge the river and the city. A transitional zone has been developed here through the exploration of dualities. The concept of water meeting land is translated in the fragmentation and juxtaposition of architectural and landscape elements on the site.
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Interaction of ACTH and Estradiol in the Regulation of Growth, Differentiation, and Steroidogenic Maturation of the Baboon Fetal Adrenal Gland
… 17/20-lyase (P450c17) to the definitive zone (3βHSD (+), P450c17 (-)), transitional zone (3-β (+) and P450c17 (+)), and fetal zone (P450c17 (+), 3β-HSD (-)). At term, betamethasone treatment resulted in a reduction in the size of the fetal zone and eliminated the transitional zone. …
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Ecology and biogeochemistry of fluvial microphytobenthic communities on soft sediments
… matrix. These biofilm communities exist on a transitional zone (the hyporheic zone) between surface water and underground water. This thesis explores the ecology and biogeochemistry of microphytobenthic communities over multiple spatial scales within the Hampshire Avon river catchment, south …
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Plant introductions and community dynamics across environmental gradients in Great Lakes coastal wetlands
… edge of the herbaceous wetland is a dynamic transitional zone influenced by lake level fluctuations and the adjacent upland; this zone may serve as a refugium for herbaceous emergent vegetation species during flooding, as well as an entry point for new invaders. While previous studies have …
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Development of a Guide to Lake and Reservoir Zone Determination
… like the parent river. This is the riverine zone of the reservoir. The reservoir is deepest and widest near the dam. Here, lake-like conditions exist and the water is quiescent. This is the lacustrine zone. The transitional zone separates the lacustrine and riverine zone. It has intermediate …
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Taxonomia e distribuição geográfica dos Monstrilloida (Copepoda - Crustacea) do Atlântico sul ocidental
… a) species associations of the Tropical Zone – with species of Areas l and 2 . ln Area 1 Monstrilla grandis. M rugosa, M careli, Cymbasoma rigidum. C. longispinosum, and Monstrillopsis gracilis occurred. lt included the coast of region from Rio Grande do Norte to Alagoas (Brazil), with …
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Sensitivity of Precipitation to Land-use Changes in a Regional Climate Model of West Africa
… of the irrigation area. There also exists a transitional zone, north of which there is less rainfall. Desertification increases both the PBL and LCL heights, but the increase in LCL is greater. This pushes the cloud base higher than the PBL, preventing cloud formation and rainfall. However, …
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Gradients in benthic community structure and bioturbation potential along the Nordic Seas continental margin
… to the Fram Strait, north of Svalbard, marks a transitional zone between the temperate North Atlantic Ocean and the polar Arctic Ocean. The influence of contrasting fluxes of organic matter on benthic community structure and function within the deep waters of the region were investigated. …
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Remotely operated vehicle exploring ichthyofauna association with habitat from shore-shelf, in an endemism hotspot in South Africa
… Kei river mouth is an endemism hotspot, and a transitional zone between the Subtropical East Coast and the Warm Temperate South Coast. The region waslargely unexplored because of itstreacherous sea conditions and because it was no longer an area of commercial fishing importance. A remotely …
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Urea Hydrolysis in Soil Profile Toposequences: Mechanisms Relevant to Nitrogen Transport and Water Quality
… field, a grassed field border, and a transitional zone adjacent to surface waters. A pH-adjustment experiment identified soil C and N as important predictors of urea hydrolysis. Analysis of microbial community composition and ureC genes across a toposequence found the greatest …
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Correlation and Paleoenvironments above West T9.3 Tuff, Pisco Formation, Peru
… wave base with associated diatom or clay-rich zones. Occasional volcanic events flooded the system with tuffaceous material. Phosphate pebbles formed during a local sea-level maximum. These phosphate-rich beds were later winnowed during regression and condensed into an erosion-resistant …
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Study of spatiotemporal changes within the abandoned flotation plant site of Kirki (NE Greece) via clustering on Sentinel-2 data
… across seven tailings ponds and three near-pond zones. Each pixel's spectral signature was compared against a library of 13 mineral endmembers (from the USGS Spectral Library) — including jarosite species (K-, Na-, H₃O-jarosite), goethite, hematite, gypsum, butlerite, and lead-bearing phases …
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Χημική δομή και μεσοφασικές δράσεις τεσσάρων σιλανιούχων σκευασμάτων επιδιόρθωσης κεραμικών όψεων
… active -OH groups for adsorption. - an improved transitional zone was detected at the alloy-composite and porcelaincomposite interface treated with Enamelite 500, Kerr Ceramic Primer and Silanit, compared to the control where no silane was used. - the orientation of the silanol groups towards the …
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A HYDROLOGICAL INVESTIGATION OF THREE DEVON SAND DUNE SYSTEMS; BRAUNTON BURROWS, NORTHAM BURROWS AND DAWLISH WARREN
… along the eastern margin of the system. The transitional zone from dune sands to marshland, of a lower permeability, was restricting the inland lateral drainage regime and was controlling both the shape and elevation of the water table. At Northam the groundwater system was also mounded and …
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Numerical lnvestigation of Disturbance Environments in Low Pressure Turbines
… vibration is found to increase the level of pre-transitional fluctuations, without having a significant influence on the growth beyond separation. There is a cumulative effect in suppressing the separation region when blade oscillation and free-stream turbulence are studied in conjunction, …
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Rainbow Trout (Oncorhynchus mykiss) Summer Habitat Use in Lake Spokane, Washington
… State. Long Lake has three reaches, riverine, transitional, and lacustrine, and experiences low DO and high temperatures. The objectives of this project were to 1: Determine summer habitat use of Rainbow Trout from tracking data that provides location, depth, and temperature. 2: Compare habitat …
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Examining UAV-based LiDAR, Multispectral, Hyperspectral and Precision Photogrammetry Approaches for Tidal Salt Marsh Environments
… the elevation range of 2.30–2.80 meters LAT, a transitional zone spreading within the range of 1.91–2.78 meters LAT, and S. maritimus living within the range of 1.22–2.35 meters LAT. Establishing a method to assess the vulnerability of the salt marsh to SLR scenarios based on the relationship …