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 96 for “"divalent cations"”.
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The structural effects of divalent cations and insulin on phospholipid model membranes /
… phospholipids have been done; but the effects of divalent cations and protein on these models would make these studies more applicable to intact membrane. The present study, performed with above view, is a structural analysis of divalent io~cardio1ipin complexes using the technique of x-ray …
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The binding of divalent cations to tobacco mosaic virus and to some isometric plant viruses
The binding of divalent cations (particularly calcium and magnesium) to strains of tobacco mosaic virus (TMV) and their isolated proteins was investigated, using equilibrium dialysis and potentiometric titration, in an attempt to elucidate the role of divalent cations in virus stabilisation. It was …
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The role of divalent cations in the development of nephrocalcinosis induced by modified food starches
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Nutrition and Food Science, 1983.
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Structural Characterization of the interaction between divalent cations and the novel Schistosoma mansoni Universal Stress Protein G4LZI3
… the binding of the protein with 3 metallic divalent cations using Isothermal Titration Calorimetry (ITC). Additionally, bioinformatics was employed to predict the secondary structure of the protein, generate a 3-dimensional model of the protein and use it for docking the divalent cations. …
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The Effect of Divalent Cations on the Prophenoloxidase Enzyme Cascade Activity in the Freshwater Crayfish Cambarus Latimanus
<p>The effect of divalent cations such as cadmium, calcium, copper, lead and magnesium upon the prophenoloxidase system (proPO) was studied in hemocytes of the crayfish Cambarus latimanus. It was demonstrated that cadmium, calcium, copper and lead increased proPO activity significantly, whereas …
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HIV Reverse Transcriptase Fidelity And Inhibition Are Modulated By Divalent Cations In A Concentration-Dependent Manner In Vitro
… by RT to perform catalysis, however, alternative cations including manganese (Mn2+), cobalt (Co2+), and zinc (Zn2+) can also be used. I demonstrate here that fidelity and inhibition of HIV RT can be influenced differently, in vitro, by divalent cations depending on their concentration. The …
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Nickel Reduces Calcium Dependent Dimerization In Neural Cadherin
… we are investigating whether other divalent cations might affect calciumdependent dimerization of neural-(N-) cadherin. The first chapter focuses on studies to characterize the impact of binding physiological magnesium (II) or neurotoxic nickel (II) on calcium-dependent N-cadherin …
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Influence of counter-ions on antifogging coatings
… treated with salt solutions of monovalent and divalent cations. Refraction index of the films dropped significantly when treated with monovalent cations, and increased when treated with divalent cations. It has been found that the refraction index decrease in films treated with monovalent salts …
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Single channel characterisation of a calcium-selective channel from wheat roots / by Miguel Alfonso Pinenos.
… mechanism for entry of calcium and other divalent cations into the roots of wheat.
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Biochemical studies of the tear film in humans and rabbits
… In this thesis, the concentrations of metal cations were tested using the inductively coupled plasma mass spectrometer (ICP-MS) and inductively coupled plasma atomic emission spectrometer (ICP-AES). A higher concentration of divalent cations was found in rabbit tears. Their influence on the …
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The effects of cations on activated sludge characteristics
… plant study were caused by the addition of divalent cations and whether the deterioration of the sludge was due to sodium ion additions. Bench-scale, activated sludge reactors were fed wastewater from the Celanese plant to model plant conditions. Sodium was added in an attempt to cause …
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Morphological responses of neutrophils in suspension to plasma components and chemotactic factors / Damien Gerard Harkin.
… In addition, the possible roles of extracellular divalent cations (Ca2+ and Mg2+), intracellular Ca2+ ions and actin microfilament distribution during responses to each stimulus are examined.
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Bioflocculation: Implications for Activated Sludge Properties and Wastewater Treatment
… properties. In these studies, it was shown that divalent cations such as calcium and magnesium improved activated sludge properties, whereas monovalent cations such as sodium, potassium and ammonium ions were detrimental to these properties. The divalent cations promoted bioflocculation through …
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Multiscale Simulations of Phosphatidylinositol Bisphosphate: Understanding Its Biological Role Through Physical Chemistry
… charged lipids to interact with monovalent and divalent cations affects their spatial organization and temporal distribution on the cytoplasmic side of membranes. In turn, these lipids act as important effectors of apoptosis, inflammation, motility, and proliferation through their interactions …
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Novel insights into low salinity water flooding enhanced oil recovery in sandstone reservoirs
… LS water requires decreasing only the active divalent cations such as Ca<sup>2+</sup>, Mg<sup>2+</sup> and water salinity makes LS water flooding a relatively simple and low expense IOR technique. The water chemistry significantly impacts the oil recovery factor. Wettability is one of the …
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Achieving High Replication Fidelity by Intricate Communication between Two Active Sites and Efficient Use of Available Cofactors in Human Mitochondrial DNA Polymerase
… bigger role. Third, we investigate the role of divalent cations in DNA synthesis ability of Pol g, especially on UV-lesion-containing template. Using biochemical techniques, we discovered that Mg2+ prevents Pol g from replicating over UV-lesion, whereas Mn2+ confer Pol g translesion DNA …
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Diamphotoxin : the arrow poison of the !Kung Bushmen
… bound irreversibly to the cell but, provided no divalent cations were present, no damage to the cell could be detected. The second stage required the presence of free calcium (or certain other divalent cations), with an optimum concentration at 1 mM. The interaction of calcium with the cell-bound …
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The Effect of The Modification of The Acidic and Zwitterionic Phospholipid Composition on The Enzymatic Activity of D-Beta-Hydroxybutyrate Dehydrogenase
… increased by 24%. The addition of monovalent or divalent cations, which reduced the electrostatic potential, largely reversed the apparent K(,m) changes. At the same ionic strength divalent cations had a substantially larger effect than monovalent cations. Similar results were obtained when the …
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