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 18 of 18 for “"passive process"”.
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A novel semi-passive process for sulphate removal and elemental sulphur recovery centred on a hybrid linear flow channel reactor
… across largely rural areas of SA. Semi-passive ARD treatment systems present an attractive alternative treatment approach for diffuse sources, with lower capital and operational costs than active systems as well as better process control and predictability than traditional passive …
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Novel function and regulation of mutagenic DNA polymerases in Escherichia coli
… that such mutagenesis is an active rather than passive process. Biochemical studies have revealed that umuC+ and its homolog dinB+ encode novel, low to moderate fidelity DNA polymerases with the ability to catalyze synthesis on imperfect DNA templates in a process termed translesion synthesis …
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Quantifying the Relationship of Bilateral Blood Flow in Glabrous Skin at Rest and During Sympathetic Perturbations
… vasoconstrictor tone, with vasodilation being a passive process. As bursts of sympathetic vasoconstrictor activity occur simultaneously at separate sites of the body, blood flow patterns should also be closely matched due to the direct connection between sympathetic nerves and peripheral …
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The Absorption of the Lead Cation from the Intestine of the Rat
… that lead transport by the intestine is a passive process. The interaction of lead cations with the tissue is a mainly surface phenomenon. Lead absorption is reduced by the presence of food in the intestine, the main effect being that of fibre. The age of the rat also affectedthe extent of …
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Constructions of Shakespeare in the secondary school curriculum
… knowledge, removed from meaningful cultural processes. For many students in this case study the reading of a set Shakespeare play has been a disabling rather than a liberating experience. This thesis argues that in the context of assessment- driven critical practice, <br/>reading a …
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THE EFFECTS OF NICOTINAMIDE MONONUCLEOTIDE ADENYLYLTRANSFERASE 2 (NMNAT2) ON MOUSE NERVE AND BLADDER DEVELOPMENT
… that, until recently, was thought to be a passive process based upon the lack of trophic support. There is now data that supports the compartmentalized neuron loss theory where each compartment of a nerve cell has a distinct mechanism of maintenance and death. In axons, the Wlds protein is …
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The tell-tale body: investigating the intertwined relationship between social cognition and visual perception through physiological indices.
… reciprocal interaction between early perceptual processes and social predispositions. Through three studies, we investigated the special status of social stimuli in perception and the link between physiological reactivity to emotional cues and social abilities. Using a breaking continuous flash …
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Acidification in the Rat Proximal Jejunum
… by DNP at concentrations that prevent oxidative processes, indicating the metabolic dependency and excluding anoxia as a source of acidification. Unaffected by histamine (10mM) and EDTA (10mM) , acidification is distinct physiologically, from gastric acid production. The ineffectiveness of …
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POLY(N-ISOPROPYL ACRYLAMIDE)-COATED SURFACES: INVESTIGATION OF CYTOTOXICITY WITH MAMMALIAN CELLS AND THE MECHANISM OF CELL DETACHMENT
… that the cell detachment from pNIPAM is mostly a passive process, and that no pNIPAM is removed from the surfaces during the detachment. Our results therefore provide an important step to clearing the hurdles presently obstructing the generation of engineering tissues from pNIPAM films.
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Interactions of Steroid Hormone Receptors With Coactivators and DNA
… a half time of about an hour. The dissociation processes can be accelerated dramatically and the half-life of the complex shortened to less than a minute by adding increasing concentrations of unlabeled HRE. The data indicates the movement of HR among HREs is not a passive process, in which the …
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A portfolio of theory, practice and research in a primary care setting
… service but they seem to view counselling as a passive process. There is no consensus among GPs or among counsellors as to what counselling is. The role of the counsellor within the practice does not appear to be clear to the GP and there are differences between the counsellors' perceptions of …
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Fear Not: Exploring the Role of Memory Suppression During Pavlovian Fear Extinction
… extinction. Memory suppression is a cognitive process whereby unwelcome memories intruding into our awareness are pushed out of mind, allowing us to regain control over the contents of our consciousness. Pavlovian fear extinction, on the other hand, refers to the waning of a developed fear. …
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Mechanisms of microbial-host interaction during asymptomatic bacteriuria
… We show that ABU is an active rather than passive process, and present a theory that basal transcriptional suppression may be a general mechanism used by commensal strains to modulate host gene expression. We further examined the kinetics of the local and systemic host response during ABU …
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Learning and teaching in the context of clinical practice: the midwife as role model.
… a theory in order to explain the meaning and process of learning the role of the midwife from midwives in the clinical setting. To achieve the depth and detail required in the absence of literature on this topic, the grounded theory approach was adopted. The sample consisted of twenty student …
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Interaction of peptides, peptidomimetics and other drug candidates with the DI/tripeptide transport system in intestinal epithelial cells, using the in vitro caco-2 cell culture system
… several ACE inhibitors to be absorbed via a passive process, thus suggesting that compounds are capable of binding to the transporter site and inhibiting the probe without being translocated into the cell. This was also shown to be the case for oligodeoxynucleotide conjugated to a lipophilic …
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Mechanisms of apoptosis modulation and their contribution to genomic instability in tumor cells
… controlled and medically important molecular process. More general terms such as ‘physiological’ or ‘regulated’ cell death cover different morphologies and sequences. Programmed suicide of cells that were subjected to toxic exogenous and endogenous stimuli plays a key role in understanding …
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Redefining the Gastrula Organiser in Early Chick Embryo Development
… cells, suggesting that neural induction is a passive process. Furthermore, explants of the neural plate at late gastrula stage appear to have already undergone AP patterning, yet the node-derived axial mesoderm retains the ability to induce distinct types of neural tissue found along the AP …
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Entwicklung einer Technologie zur langzeitstabilen Biologischen Reinigung schwermetallbelasteter Bergbauwässer
… sulphate reduction in a self-stabilising process. Electron donor for sulphate reduction is supplied by degradation of a solid substrate (silage). Elimination of metals is primarily achieved by sulphide precipitation within the sulphate reduction zone. The organic compounds are either …