Dartmouth Digital Library Program

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Chemistry of P-H bonds at metal centers.
Organophosphorus compounds -- Synthesis. ; Phosphine. ; Transition metal compounds.
Dartmouth Dissertations

A mechanistic investigation of the ring expansion of vinylcyclopropenes to metallacyclohexadienes and cyclopentadienyl complexes through the use of isotopically labelled ligands.
Organometallic chemistry. Isomerization. Organoiridium compounds. Organoiron compounds. Organorhodium compounds.
Dartmouth Dissertations

Fault modeling and design of dynamic logic.
Logic programming. ; Electronic digital computers -- Circuits -- Testing -- Mathematical models. ; Fault-tolerant computing.
Today''s fastest microprocessors, logic chips, and even memory chips employ dynamic logic as the key part to achieving advanced performance. Dynamic logic only retains the correct data state briefly and is far less robust than previous technologies...
Dartmouth Dissertations

Attributing change and understanding melt ponds on a seasonal ice cover.
Sea ice -- Arctic Ocean -- Measurement. ; Melt ponds -- Arctic Ocean -- Measurement. ; Sea ice -- Permeability.
Dartmouth Dissertations

Electron transfer reaction in solution: initial charge separation distance distribution and its impact on free ion formation.
Free radicals (Chemistry). ; Electron donor-acceptor complexes. ; Ions.
In this study, the initial charge separation distance and its impact on free radical ion (FRI) formation are investigated in detail. Transient photocurrent techniques together with other spectroscopic methods were used with a series of donors and...
Dartmouth Dissertations

Strategies for technological change in housing production.
Housing. ; Building -- Cost control. ; Building -- Mathematical models.
Dartmouth Dissertations

Graph algorithms for NMR resonance assignment and cross-link experiment planning.
Graph algorithms. Nuclear magnetic resonance spectroscopy -- Data processing. Proteins -- Structure -- Mathematical models. Proteins -- Crosslinking -- Mathematical models. Protein folding -- Mathematical models.
The study of three-dimensional protein structures produces insights into protein function at the molecular level. Graphs provide a natural representation of protein structures and associated experimental data, and enable the development of graph...
Dartmouth Dissertations

Design, fabrication, control, and programming of MEMS micro-robots.
Microelectromechanical systems. Robotics.
This thesis presents technologies for the design, fabrication, operation, and control of electrostatic MEMS micro-robots. It describes prototype micro-robots, with dimensions of 60 μm by 250 μm by 10 μm, that are capable of controllable...
Dartmouth Dissertations

Geographic access, utilization, and outcomes in lung, breast, prostate, and colorectal cancer patients at NCI-designated cancer centers.
Cancer Control Program (National Cancer Institute) -- Evaluation. Cancer -- Treatment -- United States -- Evaluation. Cancer -- Patients -- Care -- Evaluation.
Background. Disparities in access to cancer care and cancer-related outcomes have been demonstrated in the U.S. Patterns of access to National Cancer Institute-designated Cancer Centers (NCI-CCs), the most specialized cancer care settings, have not...
Dartmouth Dissertations

Crevasse detection in ice sheets using ground penetrating radar and machine learning / by Rebecca M. Williams.
The purpose of this thesis is to describe methods for detecting hidden crevasses on glaciers in Polar regions. Crevasses form in ice sheets as a result of forces imposed upon the brittle ice. The crevasses are hidden from view by bridges of soft...
Dartmouth Dissertations

Damping and decoherence of a nanomechanical resonator due to two-level systems
Nanoelectromechanical systems -- Mathematical models. ; Resonators -- Mathematical models. ; Damping (Mechanics) -- Mathematical models. ; Multilevel models (Statistics) ; Materials at low temperatures.
Dartmouth Dissertations

Boundary integral methods and their applications / by Lin Zhao
Boundary integral methods have long been used to solve boundary value problems for elliptic partial differential equations with piecewise constant coefficients, since they have several numerical advantages over conventional volume discretization....
Dartmouth Dissertations

Preparation and reactivity of perfluorobenzyl complexes of the group 9 metals (Co, Rh, Ir).
Organometallic compounds. ; Organofluorine compounds. ; Organic compounds -- Synthesis. ; Transition metals. ; Cobalt compounds -- Synthesis. ; Rhodium compounds -- Synthesis. ; Organoiridium compounds -- Synthesis.
Dartmouth Dissertations

Preparations of oxysterols and derivatives for investigation of cholesterol regulation.
Oxysterols -- Synthesis. ; Oxysterols -- Derivatives -- Synthesis. ; Cholesterol -- Metabolism -- Regulation. ; Cholesterol -- Synthesis -- Regulation.
Dartmouth Dissertations

Part I, the attempted synthesis of a highly fluorinated tetrahedrane; Part II, synthesis and study of a [2.2.2.] propellane.
Organofluorine compounds -- Synthesis. ; Propellanes -- Synthesis.
Part I. Attempted synthesis of a highly fluorinated tetrahedrane. In 1978 G. Maier and his group synthesized tetrakis-t-butyltetrahedrane and later made several closely related representatives. We attempted to synthesize a fluorinated analog of...
Dartmouth Dissertations

Generalized weights for linear codes.
Coding theory. ; Finite fields (Algebra) ; Rings (Algebra).
Dartmouth Dissertations

Migmatite systematics and geology : Carter Dome-Wild River Region White Mountains New Hampshire.
Migmatite -- New Hampshire. ; Geology -- New Hampshire.
Dartmouth Dissertations

Assisting human motion-tasks with minimal, real-time feedback.
Human locomotion -- Computer-assisted instruction. ; Real-time data processing. ; Human-computer interaction.
Teaching physical motions such as riding, exercising, swimming, etc. to human beings is hard. Coaches face difficulties in communicating their feedback verbally and cannot correct the student mid-action; teaching videos are two dimensional and...
Dartmouth Dissertations

Systematic replications and innovations in the neuroscience of humor / by Sean A. Guillory.
In the past decade, there have been efforts to understand the brain basis of humor processing with noninvasive imaging. Starting with Goel and Dolan (2001), several empirical reports have been published examining at the neuroimaging of humor. These...
Dartmouth Dissertations

Turbulent dynamo theory and its possible applications to reversed field pinches.
Plasma turbulence. Electric generators.
Dartmouth Dissertations

Computational studies of small group IB clusters and their van der Waals complexes.
Transition metal complexes -- Spectra. ; Chemical reaction.
Dartmouth Dissertations

New synthetic approaches to chlorins and bacteriochlorins.
Pyrroles -- Synthesis. Porphyrins -- Synthesis.
Naturally occurring macrocyclic tetrapyrroles of the chlorin and bacteriochlorin classes play important roles in essential biological processes, including photosynthesis and nitrogen cycling. The chromophores also show promise in various...
Dartmouth Dissertations

Regulation of the cystic fibrosis transmembrane conductance regulator by P-glycoprotein modulators.
Cystic fibrosis -- Chemotherapy. ; Cystic fibrosis -- Physiological aspects. ; P-glycoprotein. ; Membrane proteins -- Physiological transport. ; Cystic Fibrosis Transmembrane Conductance Regulator.
Dartmouth Dissertations

Utilization and health outcomes in a spatial model of the US health care system / by Laura C. Yasaitis.
Objectives: This dissertation comprises three essays on geographic variations in healthcare, and the association between utilization and health outcomes. I first explore associations between outpatient visits and Medicare beneficiaries'...
Dartmouth Dissertations

Group 6B metal complexes of three and four membered organic rings.
Organometallic compounds. Transition metal compounds.
Dartmouth Dissertations

Metabolic engineering of catabolic product metabolism in thermophilic bacteria.
Thermophilic bacteria -- Metabolism. Thermophilic bacteria -- Genetics. Thermophilic bacteria -- Biotechnology. Cells
Metabolic engineering of the catabolic end-product metabolism of Thermoanaerobacterium saccharolyticum was initiated. T. saccharolyticum is an anaerobic, thermophilic bacterium that utilizes xylans and xylose, the second most prominent sugar after...
Dartmouth Dissertations

Coloring posets and reverse mathematics.
Partially ordered sets. ; Forcing (Model theory). ; Set theory.
Dartmouth Dissertations

Investigations on optimizing the energy transmission of ultrafast optical pulses in pure water.
Laser pulses, Ultrashort. Electromagnetic waves -- Transmission.
Many of today's communication and imaging technologies share the common challenge of signal deterioration due to water's large absorption coefficient. As an example, it is water molecules that contaminate the fused silica of optical fibers and...
Dartmouth Dissertations

Groupoid crossed products.
Groupoids. Crossed products. Abelian groups.
We present a number of findings concerning groupoid dynamical systems and groupoid crossed products. The primary result is an identification of the spectrum of the groupoid crossed product when the groupoid has continuously varying abelian...
Dartmouth Dissertations

On a generalized second order linear differential operator.
Differential equations Linear. Calculus Operational.
Dartmouth Dissertations

Emergent coherent structures in nonequilibrium field theory.
Coherent states. Quantum field theory. Nonlinear theories.
In this thesis we study the properties of time-dependent, nontopological configurations and their effect on the macroscopic properties of a system described by a nonlinear field theory. These structures seem to be ubiquitous in relativistic field...
Dartmouth Dissertations

Distinguishing complete sets with respect to strong notions of reducibility.
Computable functions. Recursively enumerable sets. Logic.
This thesis investigates a notion of Turing reducibility introduced by Winkler [8] that is total on all computably enumerable oracles. Groszek and Weber show in [7] that this is a new notion of reducibility and it is not transitive. They give su...
Dartmouth Dissertations

SW Sextantis stars, superhumps, and other phenomena in cataclysmic variables.
Cataclysmic variable stars -- Spectra. ; Stars -- Constitution.
Cataclysmic variable stars are a broad class of close binary systems in which matter is transferred from a normal secondary star onto a white dwarf. This thesis reports spectroscopy of a number of examples, aimed mostly at clarifying the underlying...
Dartmouth Dissertations

Damage identification using sensitivity enhancing control with an identified model.
Automatic control -- Sensitivity. Structural control (Engineering). Strains and stresses -- Computer simulation. Structural analysis (Engineering). Engineering models.
Autonomous damage detection in engineering structures is critically important as the demands placed upon those structures are increased. It has been well established that damage detection can be done through monitoring the modal frequencies of the...
Dartmouth Dissertations

Eddy current loss in windings.
Eddy currents (Electric) -- Mathematical models. Electric generators -- Windings. Finite element method.
Magnetic components, such as transformers and inductors, are essential parts of most power electronics circuits. They usually are the largest components in the circuit, and also account for a large portion of the power loss. Reducing the volume of...
Dartmouth Dissertations

Rayleigh-Bénard convection between thermally perturbed boundaries.
Fluid dynamics -- Computer simulation. ; Heat -- Convection -- Computer simulation. ; Nonlinear theories. ; Turbulence.
Dartmouth Dissertations

Runx1 regulates hematopoietic stem cell quiescence.
Transcription factors. Hematopoietic stem cells -- Genetic aspects. Genetic regulation. Hematopoiesis -- Regulation.
Runx1 is required for the formation of hematopoietic stem cells (HSCs) during embryogenesis. The extent of developmental plasticity inherent to the HSC remains in question. We developed a system whereby the developmental fate of all Runx1...
Dartmouth Dissertations

Geometrical and probabilistic methods for determining association models and structures of protein complexes / by Himanshu Chandola.
Protein complexes play vital roles in cellular processes within living organisms. They are formed by interactions between either different proteins (hetero-oligomers) or identical proteins (homo-oligomers). In order to understand the functions of...
Dartmouth Dissertations

Permutations realized by signed shifts / by Kassie Archer.
In this thesis, we characterize and enumerate the permutations which are realized by the orbits of signed shifts, a family of discrete dynamical systems on words. The permutations, which are called patterns of the signed shifts, are given by the...
Dartmouth Dissertations

Bottom-up effects of nutrient enrichment on plants, pollinators, and their interactions.
Meadow ecology -- Colorado. Angiosperms -- Nutrition. Angiosperms -- Pollination. Plants -- Effect of nitrogen on. Insect pollinators -- Ecology -- Colorado. Mountain plants -- Ecology -- Colorado. Bees -- Ecology -- Colorado. Bees -- Nutrition --...
Nutrients play fundamental roles in biological systems, affecting plant growth and quality, community structure, and species interactions. Although the effects of nutrients on primary and secondary production have been well documented, their...
Dartmouth Dissertations

Implications of motion planning : optimality and K-survivability / by Yu-Han Lyu
We study motion planning problems, finding trajectories that connect two configurations of a system, from two different perspectives: optimality and survivability. For the problem of finding optimal trajectories, we provide a model in which the...
Dartmouth Dissertations

Vibrio cholerae H-NS: investigation of regulated genes and structure-function analysis.
Vibrio cholerae -- Genetics. ; DNA-binding proteins. ; Genetic transcription -- Regulation. ; Bacterial proteins.
H-NS, an abundant nucleoid associated protein, has a role in silencing the expression of a variety of environmentally regulated genes during growth under nonpermissive conditions. A genetic approach was used to study H-NS regulation of genes in...
Dartmouth Dissertations

Enolase in vacuole fusion and enolase and Bor1p in trafficking of proteins to the vacuole in Saccharomyces cerevisiae.
Membrane proteins -- Physiological transport. Membrane fusion. Plant vacuoles. Biological transport -- Regulation. Saccharomyces cerevisiae -- Cytology.
Dartmouth Dissertations

Role of proteolytic processing of tumor necrosis factor-[alpha] in immunopathology during influenza infection / by Matthew Peter DeBerge.
Influenza virus is a respiratory pathogen that is capable of causing considerable pulmonary pathology and respiratory dysfunction in humans. Seasonal influenza epidemics and the occasional influenza pandemic are responsible for significant...
Dartmouth Dissertations

Nonstigmatized individuals' reactions to the acknowledgment and valuation of a stigma by overweight individuals and physically disabled individuals.
Overweight persons -- Attitudes. ; People with disabilities -- Attitudes. ; Obesity -- Public opinion. ; Stigma (Social psychology). ; Self-presentation.
In the last few years, a new perspective on the management of obesity has emerged. Instead of focusing on dieting and weight loss efforts, the new approach focuses on size acceptance. The concept of positively accepting one's deviant features has...
Dartmouth Dissertations

Development of new methods for the synthesis of indolines and quinolizidines / by Hui Li
I. (3 + 2) Cycloaddition Reactions of Oxyallyl Cationic Intermediates with Indoles Cyclopenta- and cyclohexa[b]indolines are ubiquitous molecular skeletons in natural products and pharmaceutical agents. We have developed (3 + 2) cycloaddition...
Dartmouth Dissertations

Regulation of the floral organ identity gene APETALA3 in Arabidopsis thaliana.
Arabidopsis thaliana -- Genetics. ; Genetic regulation.
APETALA3 (AP3) is a MADS box gene required for normal development of the petals and stamens in the Arabidopsis flower. AP3 transcriptional regulation occurs in two stages; an initial establishment phase, which is mediated by LEAFY (LFY) and UNUSUAL...
Dartmouth Dissertations

Iron uptake in Arabidopsis thaliana.
Arabidopsis thaliana. ; Iron -- Metabolism. ; Growth (Plants). ; Plants -- Effect of iron on.
Dartmouth Dissertations

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