Dartmouth Digital Library Program

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Combined MRI and near-infrared spectroscopy for increased specificity of breast cancer imaging / by Michael A. Mastanduno.
A yearly breast contrast-MR scan is recommended to high-risk women because of MR's high sensitivity to breast tumors. However, breast contrast-MR yields a high number of false positives that lead to expensive and sometimes unnecessary biopsy...
Dartmouth Dissertations

Acquisition and registration of 3D optical surface scanning, MRI, and microwave tomographic imaging for improved clinical breast imaging and surgical planning / by Matthew John Pallone.
Continual improvements to clinical breast imaging technologies have led to ever earlier detections and increasingly accurate localizations of female breast cancers. While these advancements have certainly improved the prognoses of many patients,...
Dartmouth Dissertations

Advancement of magnetic resonance poroelastography for applications in brain imaging / by Adam J. Pattison.
Brain tissue mechanics are an important biomarker for neurological disorders, yet methods to obtain tissue information yield inconsistent conclusions. These techniques can be invasive or require excised tissue, where tissue function is altered from...
Dartmouth Dissertations

Sampling for complexity in rendering / by Jiawei Ou.
As the visual effect and movie industries are striving for realism and high fidelity images, physically based lighting, global illumination, realistic materials, and highly tessellated geometry are gradually accepted and used in movie and game...
Dartmouth Dissertations

Estradiol regulation of innate immune protection in the human female reproductive tract / by Mickey Vinay Patel.
Estradiol is a key regulator of immune protection in the female reproductive tract (FRT). Its concentration varies during the menstrual cycle, leading to changes in innate immune protection. In this thesis, I demonstrate the multiple levels at...
Dartmouth Dissertations

Phosphoproteomic strategies to identify aberrant kinase signaling in lung cancer / by Devin Karl Schweppe
Lung cancer is the leading cause of cancer-related death in the USA and worldwide causing 160,000 and 1.5 million deaths per year, respectively. Due to the late stage of diagnosis, poor efficacy of chemotherapies (targeted and pleiotropic), and...
Dartmouth Dissertations

Simultaneous saccharification and co-fermentation of paper sludge.
Cellulose -- Biodegradation. Zymomonas mobilis -- Biotechnology. Saccharomyces cerevisiae -- Biotechnology. Fermentation. Hydrolysis. Biomass conversion -- Mathematical models.
Production of fuel ethanol from cellulosic materials is a potentially attractive way to meet sustainability, energy security, and environmental goals. However, the high cost of processing using current technology has thus far prevented...
Dartmouth Dissertations

Alterations in the production of bacteriochlorophyll a and okenone in purple sulfur bacteria : implications for the interpretaion of their biomarkers / by Derek A. Smith.
Purple sulfur bacteria (PSB) can dominate the nitrogen, carbon, and sulfur cycles in anoxic ecosystems via their anoxygenic photosynthetic metabolisms and are the only producers of the carotenoid, okenone, a biomarker targeted for photic zone...
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

Security-policy analysis with eXtended unix tools / by Gabriel A. Weaver.
During our fieldwork with real-world organizations---including those in Public Key Infrastructure (PKI), network configuration management, and the electrical power grid---we repeatedly noticed that security policies and related security artifacts...
Dartmouth Dissertations

Parametric oscillations and the transition to turbulence in laminar flows
Fluid mechanics.; Laminar flow. ; Turbulent boundary layer.
A new type of analytic expansion for use in stability calculations is presented and applied to the question of the stability of laminar solutions of the Navier-Stokes equation. This leads in a natural way to a model of the transition from laminar...
Dartmouth Dissertations

The representation of size information in semantic memory.
Memory. Size perception. Semantics.
Dartmouth Dissertations

The synthesis and chemistry of novel cyclic perfluoromethyl-substituted molecules.
Fluorine compounds.
Dartmouth Dissertations

Evaluation and engineering of Saccharomyces cerevisiae for cellulase expression and growth on insoluble cellulose.
Saccharomyces cerevisiae -- Genetics. Cellulase -- Biotechnology. Cellulose -- Biotechnology. Biomass conversion -- Technological innovations.
Dartmouth Dissertations

A dynamically refocusable sampling infrastructure for 802.11 networks.
Telecommunication -- Traffic -- Measurement -- Statistical methods. IEEE 802.11 (Standard). Universities and colleges -- Computer networks -- New Hampshire -- Hanover -- Case studies.
The edge of the Internet is increasingly wireless. Enterprises large and small, homeowners, and even whole cities have deployed Wi-Fi networks for their users, and many users never need to--or never bother to--use the wired network. With the advent...
Dartmouth Dissertations

Spectroscopic analyses of type Ia supernovae / by Jerod Parrent.
After decades of searching we have yet to find the progenitor systems for type Ia supernovae. In fact most of what we know about this homogeneous class of supernovae is from spectral features associated with the incinerated remains of the C+O white...
Dartmouth Dissertations

Access control in and for the real world / by Sara Sinclair.
Access control is a core component of any information-security strategy. Researchers have spent tremendous energy over the past forty years defining abstract access-control models and proving various properties about them. However, surprisingly...
Dartmouth Dissertations

The SERM, Arzoxifene, and the rexinoid, LG100268, cooperate to prevent estrogen receptor-positive and -negative breast cancer as well as colon cancer.
Estrogen -- Receptors -- Regulation. Selective estrogen receptor modulators. Receptor-ligand complexes. Breast -- Cancer -- Chemoprevention. Colon (Anatomy) -- Cancer -- Chemoprevention.
We have previously shown that the selective estrogen receptor modulator, Arzoxifene (Arz), and the rexinoid, LG100268 (268) synergistically prevent breast cancer in an ER+ breast cancer model. This study was designed to determine the mechanism of...
Dartmouth Dissertations

Determining anthropogenic and natural controls on the global mercury cycle using lake sediment and ice cores ; by Samuel Adams Beal Jr.
While anthropogenic emissions of the toxic element mercury (Hg) to the atmosphere are currently rising, major uncertainties remain in determining the relative impacts of anthropogenic activity and natural processes on the global Hg cycle. In this...
Dartmouth Dissertations

SirT1 regulates vascular smooth muscle cell plasticity : implications for age-related cardiovascular disease / by Anne Marie Thompson.
Loss of vascular smooth muscle cell function is a hallmark of vascular disease. Vascular smooth muscle cells become increasingly resistant to phenotypic modulation, apoptotic and senescent. Sirtuin 1 (SirT1) is a deactylase that regulates...
Dartmouth Dissertations

Combined digital breast tomosynthesis and near-infrared spectral tomography for breast lesion characterization / by Kelly E. Michaelsen.
Annual screening mammograms are recommended for all women above 40 years of age for early detection of breast cancer, and are known to improve cancer mortality rates. However, mammography is hampered by low sensitivity and a high rate of false...
Dartmouth Dissertations

Traces on graph algebras / by Danny W. Crytser.
This thesis contains material relating to two separate subjects. The first section determines when the C*-algebra affiliated to a directed graph has continuous trace. We use groupoid methods and the focus is on producing conditions on a graph that...
Dartmouth Dissertations

Analytical and computational approaches for quantitative phosphoproteomics / by Jason M. Gilmore.
Protein phosphorylation is an important regulatory mechanism for the control of countless processes in living systems. The delicate management of phosphate attachment to, and removal from, serine, threonine and tyrosine residues in proteins...
Dartmouth Dissertations

The role of DEG/ENaC ion channel subunits in pheromone detection and mating behaviors in Drosophila melanogaster / by Vinoy Vijayan.
Gustatory pheromones regulate mating behaviors in Drosophila melanogaster and represent an important model for understanding how sensory stimuli can drive behavior. However, the genes and cells involved in pheromone detection have remained poorly...
Dartmouth Dissertations

In vivo degradation in modern orthopaedic UHMWPE bearings and structural characterization of a novel alternative UHMWPE material / by Steven D. Reinitz.
Ultra-high molecular weight polyethylene (UHMWPE) remains the most common bearing material for total joint arthroplasty. Advances in radiation cross-linking and other post-consolidation treatments have led to a rapid differentiation of polyethylene...
Dartmouth Dissertations

Temperature effects on food web interactions : from lakes to landscapes / by Samuel Butler Fey.
Temperature has powerful effects on all scales of biological organization from biochemical reactions to ecosystem processes. Despite the well-appreciated influence and thorough understanding of the physiological and population consequences of...
Dartmouth Dissertations

Multimodal electroencephalography and near-infrared spectroscopy neuroimaging measurement and analysis / by Paolo Giacometti
This project focuses on the development of research tools and methods that are used to study the relationship between neural activity and subsequent hemodynamic responses in the human brain. This relationship, referred to as neurovascular coupling,...
Dartmouth Dissertations

Towards the experimental verification of macroscopic phenomena in quantum electrodynamics.
Casimir effect. Zero-point field. Electric conductivity. Quantum electrodynamics.
The Casimir force arises from an alteration of boundary condition in vacuum and is often regarded as a manifestation of quantum zero point energy. Considerable progress has been made in the last decade with an impressive achievement of experimental...
Dartmouth Dissertations

Memory consolidation in temporal lobe epilepsy / by Ali Seçkin Titiz.
Epilepsy is associated with cognitive impairments which often manifest as a higher prevalence of memory impairments. Memory impairments in patients with epilepsy may persist even with sufficient control of seizures, suggesting other factors may...
Dartmouth Dissertations

Constitutively activated PI3K signaling accelerates tumor initiation and progression in breast and lung cancers / by Mee Rie Sheen.
Phosphatidylinositol 3-kinase (PI3K) is a major positive regulator of the PI3K signaling pathway that regulates many important cellular functions including growth, proliferation, survival, metabolism, and angiogenesis. The PIK3CA gene, encoding the...
Dartmouth Dissertations

Quantifying optical tomography methods for biomolecular sensing / by Jennifer-Lynn H. Demers.
Diffuse optical imaging techniques can be combined with standard imaging technologies such as computed tomography (CT) and magnetic resonance (MR) imaging to allow measurement of spectroscopic signals pertaining to the molecular components of...
Dartmouth Dissertations

Targeting CFTR endocytic interactions as a therapeutic strategy in cystic fibrosis / by Lemira Sahar Al Ayyoubi.
Despite the recent FDA approval of the potentiator drug Kalydeco for treatment of cystic fibrosis (CF), only a small (3-5%) portion of patients benefit from this drug. Other functional classes of drugs including correctors are under clinical...
Dartmouth Dissertations

Exercise and the brain : impacts on cognition neural function and mental health / by Andrea M. Robinson.
It has been well established that physical exercise has broad impacts across the lifespan, including improved cognition, brain function, and mental health. Studies investigating the mechanism underlying the cognitive enhancing effect of exercise...
Dartmouth Dissertations

Image reconstruction optimization and quantification for image-guided luminescent tomography / by Robert William Holt.
Molecular imaging of cancer features is a critical part of advancing better tools for oncology management and drug discovery, yet it is still evolving as a useful tool. Diffuse Fluorescence Tomography (FT) is one approach to molecular imaging, used...
Dartmouth Dissertations

Evaluating mobility predictors in wireless networks for improving handoff and opportunistic routing.
Wireless communication systems. Computer network protocols.
We evaluate mobility predictors in wireless networks. Handoff prediction in wireless networks has long been considered as a mechanism to improve the quality of service provided to mobile wireless users. Most prior studies, however, were based on...
Dartmouth Dissertations

Role of NA[subscript v]1.1 in septo-hippocampal coordination of theta rhythm and spatial memory : implications for cognitive deficits in Dravet syndrome / by Alex C. Bender
In the nervous system, neuronal communication relies critically on the function of membrane ion channels. One of these is the voltage-gated sodium channel (VGSC), which is essential for the generation and propagation of action potentials in...
Dartmouth Dissertations

Molecularly imprinted polymer and applications in nicotine sensing / by Yuan Liu.
Chemical sensing and separation is a constant challenge intriguing many scientists. Through numerous efforts, revolutionary techniques and innovative materials have been successfully developed to solve this old problem. However, a practical but...
Dartmouth Dissertations

Small molecule modulation of morphology and metabolism in Candida albicans / by Allia Kaye Smith
Candida albicans is a fungal species that naturally exists as a commensal member of the human microbiota, but can assume a pathogenic lifestyle and subsequently induce life-threatening systemic infections. The ability of the fungus to grow in...
Dartmouth Dissertations

On the nature mechanisms and neural correlates of visual feature conjunction learning / by Eric Andrew Reavis.
Visual searches for a conjunction of features (e.g., a particular combination of color and shape) are ordinarily slow and difficult. However, search efficiency for a particular conjunction can improve dramatically within a few hundred practice...
Dartmouth Dissertations

Affective decision-making in rhesus monkeys : reward order risk and the roles of the anterior insula and premotor cortex / by Eric R. Xu.
From deciding what to eat first or what stock to invest in, the order in which we prefer to experience events and the amount of risk we are willing to undertake are factors that influence our choices. However, the mechanisms underlying order and...
Dartmouth Dissertations

Development of an apparatus for simultaneous trapping of ⁶Li-⁸⁷Rb Fermi-Bose mixtures.
Trapped ions -- Instruments. Magnetooptical devices -- Design and construction. Atoms -- Cooling. Lithium ions. Rubidium -- Isotopes.
Dartmouth Dissertations

Reactor design considerations for the conversion of particulate biomass to ethanol.
Bioreactors -- Design and construction. Alcohol as fuel. Biomass energy.
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

Habitat selection in the American redstart (Setophaga ruticilla): the importance of early successional habitat and the role of landscape change in population declines.
Wood warblers -- Habitat. Wood warblers -- Effect of habitat modification on. Forest ecology -- New Hampshire. Animal populations -- Mathematical models.
Dartmouth Dissertations

Excitation transfer in strain-induced quantum wires and dots.
Semiconductors -- Optical properties. Quantum wells. Quantum electronics.
Quantum wires and dots can be created by patterning inhomogeneous strain on semiconductor quantum wells. I have used laser spectroscopic methods to study the carrier transfer from the host quantum well to quantum wires and dots. For quantum dot...
Dartmouth Dissertations

Characterization and rescue of a Drosophila model of prion disease; and The role of carcinine in signaling at the Drosophila photoreceptor synapse.
Drosophila melanogaster -- Genetic aspects. Prion diseases. Neurotransmitters. Photoreceptors.
Drosophila melanogaster is a model organism often used when studying the complex processes of neuronal signaling and neurodegeneration. The short life cycle, malleable genetics, amenability to in vivo electrophysiological assays and sensitivity to...
Dartmouth Dissertations