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 33 for “"BGC"”.
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ASSESSMENT AND POTENTIAL ADJUSTMENTS TO THE SNOW-RELATED ALGORITHMS IN BIOME-BGC, v4.2
… the effects of climate change on snowpack. BIOME-BGC, a well established eco-system process model, contains a simple snow melt model for predicting daily snow water equivalent (SWE). The model requires standard daily meteorological data and can, therefore, be extrapolated over long periods of …
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ASSESSMENT AND POTENTIAL ADJUSTMENTS TO THE SNOW-RELATED ALGORITHMS IN BIOME-BGC, v4.2
… the effects of climate change on snowpack. BIOME-BGC, a well established eco-system process model, contains a simple snow melt model for predicting daily snow water equivalent (SWE). The model requires standard daily meteorological data and can, therefore, be extrapolated over long periods of …
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Quantifying ocean carbon and oxygen cycles using Biogeochemical Argo
… carbon and oxygen cycles using Biogeochemical (BGC) Argo, which is a global array of autonomous drifting profiling floats. Chapter 2 of this thesis addresses the question of: “How can we improve BGC-Argo float oxygen measurement and address biases related to sensor response time?” by …
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A Stable Isotopic (Carbon And Nitrogen) Evaluation Of Regional Differences In Herded Animal Diet And Pastoral Risk Management Practices During The Xiongnu Period Of Mongolia.
… Mongolia (EG) and Baga Gazaryn Chuluu (BGC), an area located within the Gobi Desert. By comparing the [delta]13C and [delta]15N values of samples from EG and BGC, this study reveals intra-species and inter-regional trends in C3/C4 plant and water consumption during the Xiongnu Period.
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Mechanistic Insights into MftR-Dependent Regulation of the Redox Cofactor Mycofactocin
… when the <em>mft</em> biosynthetic gene cluster (BGC) is induced, we screened for effectors of MftR. As a result, we found that MftR binds to long-chain acyl-CoA’s with low micromolar affinities. To demonstrate that oleoyl-CoA induces the <em>mft</em> BGC <em>in vivo</em>, we re-engineered a …
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Dynamics of water, carbon, and nitrogen in forest and alpine tundra ecosystems in the Pacific Northwest and the Rocky Mountains of the U.S. under future climate change
… scale. Using a biogeochemical model, PnET-BGC, which has been extensively applied to the forest ecosystems in the northeastern United States, the interactive effects of multiple environmental factors on ecosystem function and element dynamics can be investigated. </p> <p>In this …
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Future potential net primary production trends of contiguous United States rangelands
… (GCM) to drive the biogeochemical model (Biome-BGC) in an attempt to simulate future potential NPP trends in rangelands of the contiguous United States from 2001-2100 on a 100 km2 scale. In response to the simulated climate projections, I found an overall slight increase in potential NPP …
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Future potential net primary production trends of contiguous United States rangelands
… (GCM) to drive the biogeochemical model (Biome-BGC) in an attempt to simulate future potential NPP trends in rangelands of the contiguous United States from 2001-2100 on a 100 km2 scale. In response to the simulated climate projections, I found an overall slight increase in potential NPP …
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Mid-childhood Outcomes of Children Born at Risk of Neonatal Hypoglycaemia
… treated to maintain blood glucose concentration (BGC) ≥2.6 mmol/L according to a common protocol. Masked interstitial glucose monitoring was undertaken to further assess glycaemic status. At 9 to 10 years’ corrected age a school-based assessment was undertaken of all children remaining in the …
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Genomics approaches to exploit the biotechnological potential of marine sponge-derived Streptomyces spp. isolates
… its genome-encoded biosynthetic gene cluster (BGC), as reported in Chapter 3; and c) to perform an in silico screening of a novel polyesterase from a marine sponge-derived Streptomyces isolate, followed by heterologous protein expression in an E. coli host, as demonstrated in Chapter 4. In …
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Modeling the interactions of forest cutting and climate change on the hydrology, biomass and biogeochemistry of a northeastern forest
… the long-term. The biogeochemical model, PnET-BGC has been used to simulate forest biomass, and soil and stream chemistry at the Hubbard Brook Experimental Forest (HBEF), New Hampshire, USA. Previous versions of PnET-BGC could accurately simulate the longer-term biogeochemical response to …
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Fusarium poae: Secondary Metabolism and Accessory Chromosomes
… secondary metabolite biosynthetic gene clusters (BGCs), high numbers of transposable elements, and undergo frequent sequence duplications, disruptions, inversions and translocations compared to core chromosomes. The presence of accessory chromosomes with active BGCs is promising for the discovery …
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Modeling grassland productivity through remote sensing products
… commonly-used process models (CENTURY and BIOME-BGC) have significantly improved our understanding of the possible consequences and responses of terrestrial ecosystems under different environmental conditions. However, problems with these models include only using site-based parameters and …
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Modeling the Effects of Acid Deposition and Natural Organic Acids on Surface Waters
… I used a biogeochemical model, PnET-BGC, as a tool to investigate the influence of acid deposition and watershed characteristics on the extent and rate of surface water response to changes in atmospheric deposition. I applied PnET-BGC model to surface waters in two regions of the …
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Biogeochemical Modeling of the Response of Forest Watersheds in the Northeastern U.S. to Future Climate Change
… hydrological and biogeochemical model (PnET-BGC) to evaluate the effects of climate change and increasing concentrations of atmospheric CO2 at seven diverse, intensively studied, high-elevation watersheds and to evaluate aspects of these applications. I downscaled coarse scale results to …
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Identificación y caracterización de agrupaciones de genes de biosíntesis para péptidos no ribosomales en Streptomyces sp. CS113
… para identificar agrupaciones de genes (BGCs) que codifiquen nuevos compuestos. La utilización de esta estrategia requiere poder identificar BGC desconocidos (BGCs crípticos) y que se expresen, ya que en muchos casos no lo hacen en condiciones de cultivo de laboratorio estándar y es …
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Investigation of cytochrome P450s in the biosynthesis of rice phytoalexins
… Intriguingly, two biosynthetic gene clusters (BGCs), composed of CYPs and upstream cyclases dedicated to LRD production, have been discovered in the rice genome. The chromosome two BGC (c2BGC) contains a set of closely related CYP76M sub-family members that function in LRD biosynthesis. The …
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Characterization of Cyclopropyl Synthases Involved in the Maturation of Ribosomally Synthesized and Posttranslationally Modified Peptides
… belongs to the TIG biosynthetic gene cluster (BGC), which is encoded by <em>tigABCDEF</em>, found in the bacterium <em>Paramaledivibacter caminithermalis</em>. The TIG precursor peptide, TigB, is comprised of a repeating TIGSVSG motif. Using a variety of chromatography, mass spectrometry, …
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Peculiar flow fields in the zone of avoidance from the near-infrared Tully-Fisher relation
… agrees with both HIPASS Bright Galaxy Catalog (BGC) and ALFALFA, whereas the characteristic HI mass aligns more closely with ALFALFA than the HIPASS BGC. We map the velocity field around the major large-scale structures in the southern ZOA, such as the Great Attractor (GA), the Local Void (LV), …
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