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 8 of 8 for “"CATION EFFECTS"”.
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Cation effects on the purple membrane of Halobacterium halobium
… research shows that the binding of one divalent cation is directly related to the blue-to-purple transition of bacteriorhodopsin; whereas, four other divalent cation binding sites involving carboxyl groups on the bacteriorhodopsin surface do not directly affect the color change. The intrinsic …
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Nuclear magnetic resonance studies of corn zeins and other byproducts of corn wet milling: Dynamic and structural basis of functionality
… were complicated by chemical exchange effects which were estimated to be as much as 50% of the observed relaxation rate for $\sp2$H NMR measurements of corn zein solutions. Subsequently, correlation times calculated from $\sp2$H NMR measurements were anomolously long. In addition, the …
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Substrate recognition by the 26S proteasome
… the interaction. Firstly, I optimised the purification of the human 26S proteasome, resulting in a high yield and purity sample. I showed that my 26S proteasome sample is fully functional – can recognise and bind the substrate, unfold it, translocate it into the proteolytic chamber and digest it …
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Ion effects on stability of carbon nanotubes dispersions and complex formation in polar solvents
The focus of this work is the effects of ions on solute association processes in solution: complex formations of aromatic carboxylic acids with α-cyclodextrin and bundle formation of carbon nanotubes in their N-methylpyrrolidone based dispersions. The work has two distinct parts: cation effects and …
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Hydrothermal Liquefaction of Municipal Sludge: Feedstock Composition, Inorganic Interactions, and Co-Liquefaction as a Dewatering Alternative
… (landfilling, incineration, and land application) present challenges, particularly with the rise of contaminants like per- and polyfluoroalkyl substances (PFAS). Hydrothermal liquefaction (HTL) is a near-term solution for wet sludge conversion because subcritical water tolerates the 96–99% …
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Effect of polyacrylamides on the physical properties of some light-textured soils.
… calcium chloride, or both). I measured the effects of PAM on pore-size distribution of one of the sands (by the water retention characteristic), on water repellence of the soils (by measuring water droplet penetration times), and the kinematic viscosity of the PAM solutions at various …
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Slow Inactivation of Sodium Channels: Structural Clues and Disease Associations
… analogous to the temperature-dependent provocation of paralysis. This finding further strengthens the association between defective slow inactivation gating and a specific disease phenotype. Chapter 3 explores the interaction of the sodium channel Beta-1 subunit and slow inactivation, which …
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ΑΛΛΗΛΕΠΙΔΡΑΣΕΙΣ ΙΟΝΤΩΝ ΚΑΙ ΠΡΟΣΑΝΑΤΟΛΙΣΜΕΝΩΝ ΘΥΛΑΚΟΕΙΔΩΝ ΚΥΑΝΟΒΑΚΤΗΡΙΩΝ
… THE THYLAKOIDS, AS WELL AS VIA CHAOTROPIC MODIFICATION OF SURFACE ELEMENTS, AT CONDITIONS PROVIDING FOR SUFFICIENT LOCAL ACCUMULATION OF CHAOTROPIC ANIONS. IN ADDITION, OUR RESULTS INDICATE THAT PHOTSYSTEM II ACTIVITY IS CONTROLLED BY LONG RANGE ELECTROSTATIC EFFECTS, GENERATED BYMEDIUM IONS …