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 29 for “"Hydrolyzable"”.
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Roles of tannase and hydrolyzable tannins in chestnut blight
<u>Endothia parasitica</u> (Murr.) P. J. & H. E. Anderson (syn: <u>Cryphonectria parasitica</u>(Murr.) Barr), the causal agent of chestnut blight, was able to grow in total aqueous and tannin extracts from blight-susceptible American chestnut as well as in blight-resistant Chinese chestnut bark …
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Effects of long-chain surfactants, short-chain alcohols and hydrolyzable cations on the Hydrophobic and Hydration Forces
The DLVO theory states that the interaction between two lyophobic particles in aqueous media can be predicted by the sum of two surface forces, i.e., the electrical double-layer and van der Waals forces. This theory, which was developed 50 years ago, served as a backbone for colloid chemistry. …
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Effects of tannins on protein digestibility and detoxification activity in gray squirrels (Sciurus carolinensis)
… Levels of phenols, condensed tannins, and hydrolyzable tannins were higher in red oak acorns than white oak acorns and were likely responsible for the lower dry matter intake, lower apparent protein digestibility, lower digestible protein and energy intakes, and higher glucuronidation …
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Carbohydrate and Fat Supplementation in Grazing Mares and Foals
… variation in pasture indicated an increase in hydrolyzable and rapidly fermed carbohydrates during periods of rapid growth. The FF supplement may have buffered seasonal changes and the increased hydrolyzable carbohydrate content in rapidly growing pasture, as evidenced by smoother growth curves …
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Nitrogen cycling in young mine soils in Southwest Virginia
… (fixed NH₄<sup>+</sup>) or coal fragments (nonhydrolyzable organic N). Active N, consisting of hydrolyzable organic N and exchangeable N, comprised the minor fraction of indigenous N available to plants.
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Hindered urea bond for the design of dynamic materials
… thermosets through bond exchange and hydrolyzable polymers through quenching of dissociative intermediate – isocyanate. HUB shows many advantages in dynamic materials designs compared with other DCB systems in terms of simplicity, dynamicity, tunability and cost.
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The Biochemical Characterization of Drosophila melanogaster RecQ4 Helicase
… though this is inhibited by AMPPNP, a non-hydrolyzable analog of ATP. RecQ4 also forms a stable complex with single-stranded DNA in the presence of AMPPNP. We argue that the helicase activity of RecQ4 is important to the process of DNA replication. This leads to the conclusion that two …
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Glucose regulation in Thoroughbred weanlings: Regulation by insulin, growth hormone and insulin-like growth factor-I
Diets rich in hydrolyzable carbohydrates induce a hyperglycemic/insulinemic response and may increase the incidence of metabolic disorders associated with some types of laminitis, exertional rhabdomyolysis and osteochondrosis in horses. This study applied the minimal model of glucose and insulin …
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The characterization of humic substances in seawater
… containing both polar and nonpolar moieties. Hydrolyzable amino acids constitute a low percentage of the nitrogen. Fatty acids and other lipids are important structural components. Seawater humic substances have significant structural differences from those of terrestrial origin; this seems to …
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INHIBITION OF THE SERINE PROTEASE CHYMOTRYPSIN BY A SILANEDIOL PEPTIDE MIMIC: ASYMMETRIC SYNTHESIS AND INHIBITION STUDIES
Dialkylsilanediols are non-hydrolyzable analogs of the tetrahedral intermediate of amide hydrolysis and have shown outstanding inhibition of metallo and aspartic proteases. This research describes the synthesis and inhibition of the serine protease α- chymotrypsin by silanediol structures and the …
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Sustainability of Reductive Dechlorination at Chlorinated Solvent Contaminated Sites: Metrics for Assessing Potentially Bioavailable Natural Organic Carbon in Aquifer Sediments
… present in the aquifer system, expressed as hydrolyzable amino acids (HAA), and the natural attenuation capacity (NAC) at the sites. Higher PBOC levels were consistently observed at sites with greater NAC and levels of HAA. The results of this study suggested that the variability of PBOC in …
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A soluble mannan from ripe banana fruit
… 48% pectin, 20% hemicellulose, 21% partially hydrolyzable polysaccharides and 11% protein. The hemicellulose represented about 0.05% of the banana fresh weight or about 0.2% of dry weight. Hydrolysis of the hemicellulose and analysis of the resulting sugars via gas chromatography revealed the …
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A Role for Oligomerization in the Multifunctional Nature of the Simian Virus 40 Large T Antigen Protein (Tumor, Dna, Cell Transformation, Association)
… of the aggregate form whereas addition of hydrolyzable nucleotide triphosphates resulted in reassociation of the monomer. This reassociation reaction was found to be closely linked to the phosphorylation of large T antigen by kinase activity endogenous to the preparation. Both the ATP …
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Biogeochemistry of dissolved free amino acids in marine sediments
… total nitrogen, dissolved organic carbon, total hydrolyzable amino acids, and pore water-dissolved remineralization products. Surface sediments from the oxygen minimum zone of the Peru Upwelling Region, which consisted of a filamentous bacterial mat, were sampled at three locations. DFAA …
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Recruitment and Mechanism of the Bacterial Type IV Pilus Motors
… ATPase domains of PilB bound to ADP and a non-hydrolyzable ATP analogue were determined. Analysis of the differences between structures permitted the deduction of the catalytic mechanism and domain movements of PilB, which with PilC would support the assembly of a right-handed helical pilus. …
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The ATP synthase from spinach chloroplasts (Spinacea oleracea) : improved isolation and purification of the enzyme and conformational changes observed with fluorescent labels
… a-Lys278 was changed upon addition of the non-hydrolyzable substrate AMP-PNP. <br> Fluorescence lifetime measurements of free and enzyme bound fluorophores confirm this effect. The fluorophores LY and Alexa 546 exhibited biphasic decays when bound to CF1 and free in solution. In the case of …
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Cluster Determinant 44 (CD44) Receptor and Gout: Mechanistic Role in Pathogenesis and Therapeutic Targets
… binds to CD44, to N-deacetylcolchicine via a hydrolyzable linker and study the efficacy and safety of the colchicine-P6 peptide conjugate in an in vitro model of MSU stimulated macrophages. our findings establish the CD44 receptor as a promising therapeutic target in gout, both through …
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Membrane protein conformational dynamics and ligand-binding interactions in bacterial glycoconjugate biosynthesis
… substrate binding and informs the design of non-hydrolyzable substratemimetic inhibitors. Chapter 5 further sets the stage for the use of structural bioinformatics and molecular simulation to characterize subsequent glycosyl transferase (GT) enzymes down pathway and presents initial results …
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Chemical characterization of dissolved organic matter (DOM) in seawater : structure, cycling, and the role of biology
… the dissolved organic nitrogen (DON) pool. Total hydrolyzable amino acids (THAA), and nucleic acids were measured for four incubations: a control incubation, a grazer added incubation, a zero virus incubation, and a 10 times virus incubation. Comparison to the control showed THAA and nucleic acid …
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Advances in Amino Acid Analysis for Marine Related Matrices and Its Application to Coastal Shelf Settings in The Canadian Arctic
… free amino acids (FAA) in seagrasses, total hydrolyzable amino acids (THAA) in mixed diatom-bacteria cultures, and sediment THAA. This method was then combined with additional measures and applied to examine the carbon cycling and conditions of the Arctic Ocean Mackenzie shelf system. …
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