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 16 of 16 for “"primary producer"”.
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Creating viable black economic empowerment initiatives on the primary producer level in the South African wine industry
… projects in the South African Wine Industry on producer level. Given the concern as mentioned above the following research question was formulated: How does one increase the leadership and management capabilities of individuals within empowerment projects on the primary producer level in the …
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Kinetic Characterization, Inhibition, and Activity-Based Protein Profiling of Protein Arginine Methyltransferase 1
… Since PRMT1 exhibits type I activity, it is the primary producer of the competitive NOS inhibitor, ADMA. Recently, dysregulated PRMT1 activity has also been implicated in the pathophysiology of breast cancer. Hence, potent inhibitors, which are highly selective for this particular isozyme, could …
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Molecular biogeochemistry of modern and ancient marine microbes
… oxidation of the surface environment. Through primary production – the biochemical reduction of carbon dioxide to synthesize biomass – large amounts of oxidants such as molecular oxygen, sulfate and ferric iron have accumulated in the ocean, atmosphere and crust, fundamentally altering the …
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Molecular Biogeochemistry of modern and ancient marine microbes
… oxidation of the surface environment. Through primary production - the biochemical reduction of carbon dioxide to synthesize biomass - large amounts of oxidants such as molecular oxygen, sulfate and ferric iron have accumulated in the ocean, atmosphere and crust, fundamentally altering the …
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Use of stable isotope signatures in the macroalga Ecklonia maxima and the filter feeder Mytilus galloprovincialis to determine the extent of sewage dispersal from the Green Point outfall, South Africa
… outfall in Cape Town South Africa, we selected a primary producer, the kelp Ecklonia maxima (for dissolved nutrients) and a filter-feeding organism, the blue mussel Mytilus galloprovincialis (for organic particulates). It was hypothesized that biota within close proximity of the outfall would have …
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Population dynamics and diversity of Synechococcus on the New England Shelf
Synechococcus is a ubiquitous marine primary producer. Our understanding of the factors that determine its abundance has been limited by available observational tools, which have not been able to resolve population dynamics at timescales that match response times of cells (hours-days). Development …
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The making of 'Modern' Assam, 1826-1935
… servants. It considers Assam’s development as a primary producer of a globally traded commodity, tea, and the complex ways in which related social and cultural structures meshed with ideologies of race, language and progress. The study begins in 1826, when British conquest brought the former Ahom …
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Population dynamics and diversity of Synechococcus on the New England shelf
Synechococcus is a ubiquitous marine primary producer. Our understanding of the factors that determine its abundance has been limited by available observational tools, which have not been able to resolve population dynamics at timescales that match response times of cells (hours-days). Development …
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Role of IRAK-1 in the Dynamic Regulation of Reactive Oxygen Species
… the generation of ROS, NADPH oxidase (Nox) is a primary producer. In terms of clearance, several ROS scavenging enzymes are induced by Nrf2, a sensor of excessive ROS. The mechanisms behind the skewing of this balance toward prolonged accumulation of ROS under chronic inflammatory conditions are …
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The influence of spatiotemporal variation in food web models
… are perpetually changing as organisms and primary producer communities adapt to current environmental conditions both in time and space. Despite this knowledge however, many food web studies continue to use temporally static and spatially homogenous representations of food webs. This thesis …
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Organisational identities and rationalities: A rhetorical and discourse analysis of organisational communication about genetic modification in the New Zealand kiwifruit and dairy industries
… thesis examines how two of New Zealand's largest primary producer industries negotiated their relationship with the highly controversial practice of genetic modification. This was in an effort to maintain their dominance in export markets, at a time when genetically modified foods were on the one …
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Toxicity of manufactured nano-ZnO to Lemna minor
… of nano-ZnO was analysed using the aquatic, primary producer lesser duckweed (Lemna minor), and the mechanism of toxicity was analysed. Both short-term (one week) and long-term (six weeks) toxicity of nano-ZnO (uncoated) were determined. Results show that the toxicity of nano-ZnO added to the …
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Biodiversity effects on the performance of terrestrial plant and phytoplankton communities
Die Ökosysteme unserer Erde sind durch das rasante Artensterben infolge von Umweltveränderungen durch den Menschen und des globalen Klimawandels stark betroffen. Mit den Auswirkungen dieses Artenverlustes und der damit einhergehenden Veränderung der Diversität beschäftigt sich die heutige …
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The effects of adult exposure to genistein on female reproductive outcomes
… most important follicle types because it is the primary producer of sex steroid hormones in the ovary, and it is the only follicle type capable of growing to the point of ovulation. Therefore, any effects on folliculogenesis can adversely affect female fertility. Crosstalk between the theca and …
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Carbon dynamics in coastal vegetated communities: evaluation of anthropogenic impacts, chemical characterization of dissolved organic matter, and its influence on blue carbon sequestration
… components that make up the community (dominant primary producer, bacterial activity in water and sediment and macrofauna, mainly). This thesis is composed of four chapters in which the direct and indirect impact of anthropogenic activities on coastal vegetated communities (seagrass meadows and …
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Ocean-surface heterogeneity mapping: exploiting hypertemporal datasets in support of seascape ecology research
… to a number of ecosystem indicators concerning primary producer abundance (phytoplankton) and fishing fleet activity. In doing so, it also further examined temporal scale considerations when using hypertemporal data. STH datasets were produced from different temporal inputs (an annual 7-day SST …