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 216 for “"reversibility"”.
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Reversibility for efficient computing
… In traditional models of computation, pure reversibility seems to decrease overall computational efficiency; I provide a proof to this effect. However, traditional models ignore important physical constraints on information processing. This thesis gives the first analysis demonstrating that …
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Elucidating the reversibility of ataxia
Heterozygous and recently identified homozygous mutations in the SPTBN2 gene, encoding b-III spectrin, are implicated in spinocerebellar ataxia type 5 (SCA5) and spectrin-associated autosomal recessive cerebellar ataxia type 1 (SPARCA1), respectively. Our mouse model, lacking b-III spectrin (KO), …
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Reversibility and flows in queueing networks
… a node. From these two examples we conclude that reversibility is not a necessary condition for the input process to be the reverse process of the output process at a node and that the input process is not always the reverse process of the output process. Some implications of these results when …
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The Reversibility of Differential Rearing in Rats
… was not supported regarding the potential reversibility of differential rearing. Rats raised in IC and later shifted to EC did not perform as well at Test 2 as rats initially raised in EC and later shifted to IC. Discussion centers on possible reasons for these results.</p>
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Understanding of Molecular Interactions and Reversibility in Silylamines
<p>Modern Li-ion batteries employ flammable electrolytes that pose safety concerns. Battery safety has become important as several incidents involving Li-ion battery fires have been observed. This issue could be addressed through a switchable battery electrolyte. Reversible ionic liquids (RevILs) …
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Reversibility of Sea Ice and Climate under Global Change
… the ice cover returns. We find no evidence of irreversibility over the range of simulated sea ice conditions in the summer or winter ice cover in either hemisphere. We then shift our focus to quantification of the climate commitment---the warming that would still occur given no further emissions …
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Reversibility, memory formation and collective rotations in dense granular media
… behaviors such as segregation, shear- jamming, reversibility, and compaction. The finite size of the grains suggests that thermal fluctuations are neglibible compared to the macroscopic interactions such as gravitational potential. This implies that tools developed in thermodynamics cannot be …
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Structural Dynamics and Reaction Reversibility of Specific vs. Promiscuous Detoxification Enzymes
… in the absence and presence of ligands, and (II) reversibility of catalysis.Chapters 2 and 3 describe the substrate-dependent structural dynamics of membrane-embedded CYP3A4 and CYP19A1, respectively, via hydrogen-deuterium exchange mass spectrometry and molecular dynamics simulations. Comparison …
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Acquired copper imbalance in diabetes-induced cardiac disease: Molecular mechanisms and reversibility
Diabetes is a metabolic disorder characterised by chronic hyperglycaemia, which results from disruption of several glucose-control mechanisms. In diabetic patients, it is well established that prolonged hyperglycaemia increases the risk of the cardiovascular complications, which are responsible for …
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Thermal Reversibility of the Flow Stress in Single Crystal Titanium-56 Aluminum
The [021] oriented samples were also analyzed in order to observe ordinary dislocation motion without the presence of superdislocations. It was found that all ordinary dislocations observed were mostly 60°, mixed dislocations, with relatively few screw ordinary dislocations. At room …
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The Reversibility/irreversibility of the Thermohaline Circulation After Its Shutdown: Simulations From a Hierarchy of Climate Models
The thermohaline circulation (THC) in the North Atlantic plays a vital role in explaining past abrupt climate changes and in maintaining the current climate. Its remarkable nonlinear dynamics, first demonstrated by Stommel, has been supported by different types of models. This has led to concern …
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The effects of word order, noun animacy, and verb reversibility on the syllogistic processing of children and adults
… Animate-Animate (AnAn), and two levels of verb reversibility, nonreversible (NR) and reversible (R). These 24 syllogisms in written form bound in a test booklet were presented to individual subjects tested as a group. Each syllogism was written with two premises and four possible conclusions. …
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Gaussian free field, Schramm-Loewner evolution and Liouville quantum gravity
… of the level lines: continuity, monotonicity, reversibility and target-independence ... In the second part, we study Liouville quantum gravity(LQG).
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Slice sampling on Riemannian manifolds
… Under mild regularity assumptions, we establish reversibility with respect to the target distribution for this sampler and positive semi-definiteness of the corresponding operator. Moreover, on compact Riemannian manifolds we show uniform ergodicity with explicit constants for the geodesic slice …
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Kinetics and mechanism of alpha-chymotrypsin catalyzed reactions.
The principle of microscopic reversibility was formulated for elementary reactions at equilibrium. It follows from the principle that for any elementary reaction the favored reaction path in one direction must be the reverse of that in the opposite reaction, and that the ratio of rate constants is …
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Analysis of the impact on phylogenetic inference of non-reversible nucleotide substitution models
… viral and simulated data of incorporating non-reversibility into models of nucleotide substitution processes. I consider two non-reversible nucleotide substitution models: (1) a 6-rate nonreversible model (NREV6) that is applicable to analyzing mutational processes in double-stranded genomes in …
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Experiments and simulation of transverse cooling and heating in ion channeling
… in single crystals the so-called rule of reversibility claims equal probabilities for de- and rechanneling. However, the experimental study of this work shows a strong violation of this rule. Specially developed computer simulations provide the explanation of this unexpected behavior in …
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