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Showing 1 to 20 of 67 for “"respirometry"”.
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Development of Kinetic Parameterization Methods for Nitrifying Bacteria using Respirometry
Understanding how nitrifiers react when exposed to low DO conditions could provide a greater understanding of low DO operations in full-scale biological wastewater treatment. Previous methods to observe nitrifier oxygen kinetics do exist in literature, however they are inefficient and labor …
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Determination of Biodegradation Kinetics of Select Pharmaceuticals and Personal Care Products in an Activated Sludge System through Respirometry
… of the environment and living organisms. A respirometry test method was used to measure the kinetic parameters of an activated sludge biomass degrading the pharmaceuticals and personal care products (PPCPs) triclosan, caffeine, acetaminophen, estrone (E1), 17β estradiol (E2), and 17α …
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Production of Gaseous Nitrogen in Human Steady-State Activities and Its Practical and Theoretical Implications for Open-Circuit Respirometry
Made available in DSpace on 2014-12-11T22:22:20Z (GMT). No. of bitstreams: 1 7317156.pdf: 3694765 bytes, checksum: 68c3c4eb1da998480892393fa113ad9c (MD5) Previous issue date: 1972
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Computational Advancements for Solving Large-scale Inverse Problems
… Third, we develop computational tools for a respirometry system that incorporate various regularization methods for both linear and nonlinear respirometry inversions. For the nonlinear systems, blind deconvolution methods are developed and prior knowledge of nonlinear parameters are used to …
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Recovering signals in physiological systems with large datasets
… experimentally by applying them to flow-through respirometry data. Specifically, we infused CO2 in a flow-through respirometry chamber in a known pattern, and used the methods to recover the known input from the recorded data. The results from these experiments indicate that these methods are …
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Chemical Inhibition of Nitrification: Evaluating Methods to Detect and Characterize Inhibition and the Role of Selected Stress Responses Upon Exposure to Oxidative and Hydrophobic Toxins
… nitrification inhibition, like differential respirometry and nitrate generation rate (NGR), are still the fastest and easiest methods to use. Because several conventional methods exist, we also investigated differences between differential respirometry and a UV method we developed to measure …
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EFFECTS OF WINTER AND SUMMER THERMAL VARIABILITY REGIMES ON GROWTH AND METABOLISM IN BROOK TROUT (Salvelinus fontinalis)
… fish from each group were subjected to swimming respirometry to assess metabolic and energetic capacities. The growth data showed no significant effect of the treatments in either season. Cortisol levels were elevated in response to temperature variability under winter conditions, but not during …
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The Role of Mouse Placental Endocrine Function on Offspring Metabolic Health
… the effect of Jz-Igf2UE on adipose tissue respirometry, and on the gonadal adipose transcriptome. The impact of Jz-Igf2UE on offspring metabolic health was evaluated via insulin tolerance tests, metabolic cage assessments and measuring lean mass and adiposity at multiple timepoints. Insulin …
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Assessing pace-of-life: Comparing metabolism and behavior in tarantulas
… species. RMRs were measured using an open-flow respirometry system, and a classic open-arena test was used to assess activity level. Spearman’s correlation determined that there were significant correlations between activity levels and RMR which followed PoLS predictions. I concluded these …
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Influence of Physical Stress, Sex, and Body Size on Metabolic Rates of Ozark Zigzag Salamanders, Plethodon Angusticlavius
… was measured following stress using a constant respirometry apparatus. For large salamanders (SVL ≥ 32 mm), stressed individuals had higher metabolic rates, but there was no significant effect of sex or significant interaction between sex and treatment. For small salamanders (SVL < 32 mm), there …
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Ammonia emissions and pathogen inactivation during controlled composting of pig manure
… for ammonia, water, oxygen and carbon dioxide. Respirometry showed that the optimal temperature for composting pig manure was about 60°C. A simulation model suggested that ammonia emissions could be reduced by lowering the initial pH and increasing the initial C:N ratio of the organic material. …
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RELATING METABOLIC PHENOTYPES TO MOVEMENT BEHAVIOR IN BROOK TROUT
… Rock River, Alger County, MI. Intermittent flow respirometry was used in the field using ambient stream water to determine metabolic phenotypes of wild trout. Individuals were then tagged with passive integrated transponders (PIT) and tracked with stationary readers and a backpack reader during …
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The behavioural physiology of diving animals, in particular tufted ducks (Aythya fuligula), and the implications for models of optimal diving
… all subject ducks but not for individual birds. Respirometry data also showed that both the oxygen and carbon dioxide stores were close to full adjustment after mean surface duration suggesting they have a similar influence on surface duration in tufted ducks, while pre-dive hyperventilation …
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The influence of embryo incubation temperature on later life aerobic performance of Lake Whitefish (Coregonus clupeaformis) and Yellow Perch (Perca flavescens)
… performance. I used intermittent swim respirometry to evaluate the effects of embryo incubation temperature on two measurements of whole-animal aerobic performance: aerobic scope and critical swimming speed. I chose to use two species of fish that use distinct reproductive …
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Integrating bioenergetics and foraging behavior : the physiological ecology of larval cod (Gadus morhua)
… of swimming in a viscous hydrodynamic regime? A respirometry system was developed to measure the activity metabolism of individual larvae. The cost of swimming was modeled as a power-performance relationship (energy expenditure as a function of swimming speed) and as the cost of transport (the …
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Development of a sensor-based rapid microbial testing platform for the Irish meat industry
… changes over shelf-life and after exposure to respirometry. Beta diversity was seen to be dictated by mincemeat type. Overall, the new optical oxygen respirometry systems are highly efficient and attractive for the food industry, with both developed systems improving existing methods in time to …
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Mitochondrial mechanisms in autism spectrum disorder: characterizing the neurotoxic effects of propionic acid in vitro
… to mitophagic flux. Finally, live-cell respirometry illustrated functional impairments to metabolic state marked by significant deficits in both oxidative and glycolytic ATP production. Having effectively recapitulated mitochondrial dysfunction in vitro, a model for neurogenesis was …
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Functional responses of cardiac and skeletal muscle mitochondria to short-term obesity: are all obesities the same?
… mice prior to sacrifice. High-resolution respirometry was used to examine mitochondrial function in permeabilized solei muscle fibers and isolated cardiac and skeletal muscle mitochondria obtained from all study groups. Body mass of obese animals was 30 and 50% greater than respective lean …
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Novel drug and exercise therapies to restore metabolic function in children with severe burns
… muscle protein turnover and high-resolution respirometry (HRR) to assay muscle mitochondrial function. Additionally, we were able to use these methods to test the efficacy of a combined pharmacological treatment of a testosterone analog and -blockade in severely burned pediatric patients …
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The Aerobic Metabolism and Behavior of the Burrow-dwelling Mantis Shrimp, HEMISQUILLA ENSIGERA CALIFORNIENSIS
… a function of oxygen tension, were measured in respirometry chambers using polarographic oxygen electrodes.</p> <p>This species is a near complete oxyconformer, so aerobic metabolism is strongly depressed at low oxygen levels, yet the animals remained active within the burrow even under these …
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