Dartmouth Digital Library Program

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Some results on Souslin trees.
Trees (Graph theory). ; Set theory.
Dartmouth Dissertations

Segmentation and recognition of off-line cursive handwriting.
Graphology -- Data processing. ; Writing -- Data processing. ; Pattern recognition systems.
Dartmouth Dissertations

Pattern avoiding permutations & rook placements / by Jonathan S. Bloom.
In Chapter 2 we look at the distribution of permutation statistics in the context of pattern-avoiding permutations. The first part of this chapter deals with a recursively defined bijection of Robertson [37] between 123- and 132-avoiding...
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

Efficient design and implementation of permutation algorithms on the memory hierarchy.
Computer algorithms. Permutations. Memory hierarchy (Computer science). Computer programming.
For many scientific applications, the data set cannot entirely fit in main memory. The data must reside out-of-core, i.e., on parallel disks. For many basic data-movement operations such as permuting, if the programmer does not design efficient...
Dartmouth Dissertations

Ground-based observations of auroral radio emissions.
Hiss (Radio meteorology). VLF emissions. Auroras.
Dartmouth Dissertations

The modelling of bistatic rain scatter interference including a consideration of multiple scattering effects.
Artificial satellites in telecommunication. Rain and rainfall.
Dartmouth Dissertations

Laser-based oxygen isotopic studies of Acadian metamorphism in eastern Vermont.
Metamorphism (Geology) -- Vermont. Garnet -- Vermont. Laser spectroscopy.
This study presents δ18O analyses of garnets microsampled by laser fluorination from two localities in the deep seated, Barrovian metamorphic terrane of eastern Vermont. The broad goals of the research were to constrain further the amount,...
Dartmouth Dissertations

On uncountable trees and linear orders.
Trees (Graph theory). Linear orderings.
Dartmouth Dissertations

The role of TonB-dependent receptors and alternate sigma factors in the Bradyrhizobium japonicum/soybean symbiosis.
Rhizobium -- Genetics. Cell receptors. Transcription factors. Bacteria.
Bradyrhizobium japonicum forms a nitrogen-fixing symbiosis with soybean. Signaling events, such as production of flavonoids and Nod factor, initiate the interaction, leading to formation of specialized root organs called nodules. A B. japonicum...
Dartmouth Dissertations

Analysis of the respiratory movements of the human vocal cords.
Vocal cords. ; Respiration.
Dartmouth Dissertations

New measurements of equatorial spread-F: high-altitude irregularities and drifting bubbles.
Plasma instabilities. ; Ionospheric electron density. ; Ionosphere.
As a result of an unstable plasma stratification the nighttime equatorial ionosphere is subject to a variety of plasma instabilities known commonly as equatorial spread-F. In its fully developed form spread-F consists of large wedges of depleted...
Dartmouth Dissertations

Wave phenomena in the magnetosphere: auroral electromagnetic ion cyclotron waves and quasi-thermal electrostatic fluctuations.
Cyclotron waves. ; Plasma waves.
Dartmouth Dissertations

The dorsal tegmental nucleus of Gudden and angular velocity integration in the head direction system.
Space perception. ; Motion perception (Vision). ; Vestibular apparatus.
Head Direction (HD) cells are neurons located primarily in the limbic system that fire as a function of directional heading in the horizontal, or yaw, plane in the freely moving animal. Our hypothesis is that the HD signal is the result of two...
Dartmouth Dissertations

Perceived annoyance as a function of number of noise events and maximum noise level.
Noise -- Psychological aspects. ; Sound -- Psychological aspects. ; Auditory perception.
The problem of perceived annoyance as a function of number of noise events and maximum noise level was investigated in a series of seven laboratory experiments. Four models were tested: the Equal Energy Model, the Scandinavian Model, the Variance...
Dartmouth Dissertations

Affective and perceptual judgments of major and minor musical stimuli.
Musical intervals and scales -- Psychological aspects. ; Music -- Psychological aspects. ; Chords (Music) -- Psychological aspects. ; Stability.
In Western tonal music, the major mode is associated with positive emotions, and the minor mode is associated with negative emotions. Although this is a highly salient distinction, it is poorly understood. In 9 experiments, participants made...
Dartmouth Dissertations

Performance indicators and policy evaluation in rural transit.
Transportation -- Research -- New England. ; Travel -- Research -- Mathematical models -- New England.
Dartmouth Dissertations

Interaction of chromium with nucleic acids and protein: an in vitro and in vivo study.
Chromium. ; Nucleic acids. ; Proteins.
Dartmouth Dissertations

Gain experiments with a grating based free electron laser.
Free electron lasers -- Experiments. Wave guides -- Design and construction. Diffraction gratings -- Experiments. Electron beams. Infrared sources.
The far infrared region of the electromagnetic spectrum, 15-3000 Œºm in wavelength, has a paucity of narrow band laser sources. To address the issue of whether a grating based free electron laser could operate well as such a source, a grating...
Dartmouth Dissertations

Data assimilation in brain deformation modeling.
Diagnostic imaging -- Digital techniques. Diagnostic imaging -- Mathematical models. Image processing -- Mathematics. Intraoperative monitoring. Brain -- Magnetic resonance imaging. Ultrasonic encephalography.
One of the important challenges facing image-guided neurosurgery is the fact that the brain deforms significantly over the course of an operation during open-cranial procedures. This results in a loss of registration between the brain and the...
Dartmouth Dissertations

Hybrid code simulation of electromagnetic ion cyclotron waves in curvilinear coordinates.
Cyclotron waves -- Mathematical models. Curvilinear coordinates. Nonlinear theories
Dartmouth Dissertations

Examinations of structured dispersive features of auroral HF waves observed with sounding rockets.
Ionospheric radio wave propagation -- Observations. Auroras -- Alaska -- Observations. Electromagnetic waves -- Observations. Sounding rockets -- Observations.
Earth's high latitude ionosphere, highly disturbed by particle and energy inputs and associated aurora, is the stage for plasma wave activity across a wide range of frequencies. These waves often exhibit strikingly distinct time-frequency structure...
Dartmouth Dissertations

Analysis of aberrant cell cycle regulation in pancreatic ductal adenocarcinoma uncovers novel thereapeutic approaches
Aberrant activation of cyclin D-Cdk4/6 is commonly found in pancreatic ductal adenocarcinoma (PDAC). Here, we show that PD-0332991, a highly specific inhibitor for Cdk4 and Cdk6, exerted growth inhibitory effects on human PDAC cell lines....
Dartmouth Dissertations

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

MicroRNA-10b promotes pancreatic cancer cell invasion by suppressing TIP30 and enhancing EGF and TGF-[beta] actions / by Haoxu Ouyang
MicroRNA-10b (miR-10b) is considered a marker of disease aggressiveness in pancreatic ductal adenocarcinoma (PDAC), in view of the fact that lower levels of miR-10b are associated with better response to neoadjuvant therapy, likelihood of surgical...
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

Characterization of the role of Bacillithiol in Staphylococcus aureus / by Ana Catalina Posada.
As methicillin-resistant Staphylococcus aureus (MRSA) hospitalizations keep increasing, the understanding of the characteristics that make one isolate more successful over another is paramount. Strain variations among Staphylococcus aureus observed...
Dartmouth Dissertations

Tectonics of the Pacific margin of Northern Central America
Geology, Structural.; Geology -- Central America. ; Plate tectonics -- Pacific Coast (Central America)
Dartmouth Dissertations

The ecology and bioenergetics of the northern black-throated blue warbler.
Wood warblers.
Dartmouth Dissertations

Intrinsic photoconductivity in molecular crystals,
Crystals -- Electric properties.; Photoconductivity.
Dartmouth Dissertations

Analysis of zooplankton dynamics: case studies of temporal succession controlled by the predator, Asplancha, and of diel cycles in Keratella.
Freshwater zooplankton. Predation (Biology).
Dartmouth Dissertations

C.O.A.L.1: a dynamic model for the analysis of United States energy policy.
Energy policy -- United States -- Mathematical models.
Dartmouth Dissertations

Examining auroral downward current region processes using ground based data.
Auroras -- Alaska -- Observations. Magnetospheric currents.
This thesis presents data from ground camera observations of the aurora conducted from Alaska during the winters of 2005 through 2007. In conjunction with these camera observations, conjugate radar observations of the auroral ionosphere were...
Dartmouth Dissertations

A multivariate analysis of self-selection and change due to college experience.
College students -- Psychology. College environment.
Dartmouth Dissertations

Amine catalysis of B-elimination reactions.
Catalysis. Chemical reactions. Amines.
Dartmouth Dissertations

Forest structure and atmospheric interactions : predictive models for subalpine balsam fir forest
Forest hydrology -- Mathematical models; Forest Meteorology -- Mathematical models; Balsam fir
Dartmouth Dissertations

The effect of microstructure on firn gas transport / by Kaitlin M. Keegan
The processes affecting gas transport through the firn column are important to understand in order to accurately interpret climate records from ice cores. Historically, density measurements have been used to estimate open and closed porosity in the...
Dartmouth Dissertations

Refocussing and virtual legendrian knots / by Asa Levi.
We begin with a result on the refocussing of null geodesics in space-times. We show that all oriented refocussing 2-dimensional Lorentz manifolds are also strongly refocussing. We also introduce a theory of virtual Legendrian knots. We show that...
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

Group-aware stream filtering.
Streaming technology (Telecommunications). Computer networks -- Monitoring. Multicasting (Computer networks). Electronic data processing -- Distributed processing.
Recent years have witnessed a new class of monitoring applications that need to continuously collect information from remote data sources. Those data sources, such as web click-streams, stock quotes, and sensor data, are often characterized as...
Dartmouth Dissertations

Souslin trees and degrees of constructibility.
Constructibility (Set theory). Trees (Graph theory).
This thesis investigates possible initial segments of the degrees of constructibility. Specifically, we completely characterize the structure of degrees in generic extensions of the constructible universe L via forcing with Souslin trees. Then we...
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

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

Thermodynamic and spectroscopic studies of metalloprotein stability ligation and reactivity / by George P. Lisi III.
Metal ions confer structural stability and reactivity to a large number of proteins that use the amino acids histidine (His) and cysteine (Cys) to form stable metal-ligand complexes. The stability of metal-His and metal-Cys interactions and their...
Dartmouth Dissertations

Ground and space observations of medium frequency auroral radio emissions / by Matthew C. Broughton.
The auroral zone is a rich source of natural radio emissions that can be observed in space and at ground-level. By studying these waves, scientists can gain insight into the plasma processes that generate them and use the near-Earth space...
Dartmouth Dissertations

SGA screen identifies a cytoplasmic role for Dbp5/Rat8 and a novel player in nuclear pore complex biogenesis.
Nuclear membranes. Membrane proteins. Genetic regulation.
The coordination and coupling of the several steps in mRNA biogenesis helps to ensure proper regulation of gene expression. The DEAD-box helicase Dbp5/Rat8 is an essential mRNA export factor that has also been implicated in other steps of mRNA...
Dartmouth Dissertations

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