Digital Commons Network^™

Conservation Of Bridle Shiner (Notropis Bifrenatus) In Connecticut: Issues In Detecting An Elusive Species, Kasey C. Pregler

Master's Theses

Bridle Shiner (Notropis bifrenatus) is apparently declining over most of its range and is currently listed as a species of concern in Connecticut. Using an occupancy modeling framework in program PRESENCE, my study compared seining and electrofishing backpack unit detection probabilities of Bridle Shiner. This research indicated the apparent decline of Bridle Shiner in the state was in part due to changes in sampling gear used for statewide surveys. Seining used 50 years ago was demonstrably more effective at capturing Bridle Shiner than the currently favored and more frequently used electrofishing gear. In light of this recent finding, …

Making The Invisible Visible: Latin American Women With Undocumented Status And Their Experiences Of Intimate Partner Violence, Maria Teresa (Maytte) Restrepo-Ruiz

Master's Theses

This study aimed to contribute to the currently scarce literature on unauthorized Latina immigration and intimate partner violence expanding the analysis to include women’s reasons for migrating, their experiences during the migration journey, and the intimate partner violence once they arrived in the United States. Through these women’s voices, this study shows how the lack of migratory documentation affects the experiences of Latina immigrant women. Qualitative data were collected from 11 in-depth interviews with Latin American women that had an undocumented status and received services from five domestic violence programs in Connecticut. A thematic analysis approach was employed to examine …

Geomicrobial Investigation Of Thrombolites In Green Lake, New York And Highborne Cay, Bahamas, Molly Patterson

Master's Theses

Thrombolites are non-laminated, clotted microbialites that form by the lithification of microbial communities through the trapping and binding of sediment and mineral precipitation. This precipitation (microbially-induced organomineralization) is controlled by both intrinsic (microbial; e.g. microbial metabolisms) and extrinsic (environmental; e.g. temperature) factors, which dictate the carbonate saturation index and ultimately the precipitation of carbonate minerals within the microbialite structure (i.e. EPS matrix). Thrombolites date back in the rock record to the early Paleoproterozoic (ca. 1.9 Ga) and are currently forming around the world in various climates and under a range of environmental conditions. This study compares two markedly different modern …

Efficacy Of Optical Coherence Tomography In The Detection Of Potentially Malignant Oral Mucosal Lesions Of The Tongue: An Animal Model, Hugo Cesar Campos Jaramillo

Master's Theses

No abstract provided.

Non-Destructive Evaluation And Maintenance Of Thermal Barrier Coatings, Martin P. Hawron

Master's Theses

Abstract Thermal Barrier Coatings (TBC) composed of Yttria-stabilized Zirconia (YSZ) ceramic are widely employed in gas turbine engines to insulate nickel-based components from the extreme temperatures of the gas stream. Over the course of extensive operation, these coatings delaminate and eventually succumb to spallation failure. Photoluminescence Piezospectroscopy (PLPS) is employed as a non-destructive evaluation (NDE) technique for the predictive determination of the operational lifetime of these coating systems. A mobile analysis unit has been developed to provide remaining life analysis for EB-PVD applied TBCs of engine-run turbine blades. This technology includes a Laser-Induced Breakdown Spectroscopy (LIBS) capability utilized for precision …

Development Of A Silicon Nanowire Mask Using Scanning Probe Microscopy, Ross Gregoriev

Master's Theses

Scanning probe microscopy techniques were used to investigate the desorption of hydrogen passivated silicon to form SiO2 etch masks The application of the etch masks were planned on being used to manufacture silicon nanowires. Low concentration hydrofluoric acid was used to passivate the surface. The surface was selectively depassivated by SPM techniques. Scanning tunneling microscopy (STM) and atomic force microscopy (AFM) were used to create the masks. The STM system used was found to desorb hydrogen from the surface faster than the STM could image and was considered incapable in the configuration investigated. This led to the use of atomic …

Avoided Water Cost Of Electricity Generation For Solar Pv And Wind Technologies In Southern California, Matthew Cohen

Master's Theses

The objective of this thesis is to provide a foundation for evaluating the water costs associated with electricity production to calculate the avoided water cost of energy for solar PV and wind technologies relative to coal, natural gas, nuclear, geothermal, concentrated solar thermal, and biomass. Water consumption is estimated for energy production (fuel extraction and preparation) and electricity generation (power plant operation) using the best available information from published articles. The quantity of water consumed for electricity production is monetized for a Southern California case study based on the water rates of Metropolitan Water District of Southern California (MET), which …

Investigating Hemodynamic Responses To Electrical Neurostimulation, Sean Youra

Master's Theses

Since the 1900s, the number of deaths attributable to cardiovascular disease has steadily risen. With the advent of antihypertensive drugs and non-invasive surgical procedures, such as intravascular stenting, these numbers have begun to level off. Despite this trend, the number of patients diagnosed with some form of cardiovascular disease has only increased. By 2030, prevalence of coronary heart disease is expected to increase approximately by 18% in the United States. By 2050, prevalence of peripheral arterial occlusive disease is expected to increase approximately by 98% in the U.S. No single drug or surgical intervention offers a complete solution to these …

Element Detection In Japanese Comic Book Panels, Toshihiro Kuboi

Master's Theses

Comic books are a unique and increasingly popular form of entertainment combining visual and textual elements of communication. This work pertains to making comic books more accessible. Specifically, this paper explains how we detect elements such as speech bubbles present in Japanese comic book panels. Some applications of the work presented in this paper are automatic detection of text and its transformation into audio or into other languages. Automatic detection of elements can also allow reasoning and analysis at a deeper semantic level than what’s possible today. Our approach uses an expert system and a machine learning system. The expert …

A Rubric For Electrochemical Testing Of Metallic Biomaterials, Frederick G. De La Fuente

Master's Theses

Corrosion is a major factor for the failure of metallic medical implants. Testing a metal’s suseptability to corrosion prior to implantation is key to a successful implantation. Electrochemical processes were used in this study to evaluate the characteristics of corrosion of both AISI 316 stainless steel and titanium alloy Ti6Al4V, welded and non-welded. Linear, potentiodynamic, and cyclic polarization curves were produced by the PARC 2273 potentiostat showing the corrosion tendencies of the metals in four unique solutions 3.5% NaCl, 0.35% NaCl, phosphate buffered saline solution (PBS), and Butterfield phosphate buffered solution (BPS). The concentration of chloride ions in solutions affected …

Effect Of Adaptive Tabs On Drag Of A Square-Base Bluff Body, Brian W. Barker

Master's Theses

This thesis involves the experimental wind tunnel testing of a 0.127m by 0.127m square-base bluff body to test the effectiveness of trailing edge tabulations to reduce drag in the Cal Poly 0.912m by 1.219 m low-speed wind tunnel. To accomplish this, the boundary layer was first measured on the trailing edge of the model for the three speeds at 10, 20, and 30 m/s, with Re = 8.3e4, 1.6e5 and 2.5e5 respectively, without the tabs. Three different tests were performed to determine the effectiveness of the tabs. These tests included base pressure measurements, total drag force measurements and hotwire velocity …

Examining The Impacts Of State Route 101 On Wildlife Using Road Kill Surveys And Remote Cameras, Sara Ann Snyder

Master's Theses

Roads can negatively impact the survival of wildlife populations through additional mortality from road kill and population fragmentation caused by road avoidance behaviors. The 11.9 mile section of State Route 101 between the towns of San Luis Obispo and Atascadero, CA, USA, cross a mountain lion movement corridor and an area important to maintaining ecological connectivity between protected lands in the Los Padres National Forest to the north and south.

I examined the spatial patterns and landscape and roadway factors associated with road kill occurrence for six taxa; large mammals, mesocarnivores, squirrels, rabbits, birds and raptors. Between 1 May 2009 …

Design, Characterization And Application Of A Multiple Input Stethoscope Apparatus, Spencer Geng Wong

Master's Theses

For this project, the design, implementation, characterization, calibration and possible applications of a multiple transducer stethoscope apparatus were investigated. The multi-transducer sensor array design consists of five standard stethoscope diaphragms mounted to a rigid frame for a-priori knowledge of their relative spatial locations in the x-y plane, with compliant z-direction positioning to ensure good contact and pressure against the subject’s skin for reliable acoustic coupling. When this apparatus is properly placed on the body, it can digitally capture the same important body sounds investigated with standard acoustic stethoscopes; especially heart sounds. Acoustic signal inputs from each diaphragm are converted to …

Chromatographic Analysis Of Fatty Acids Using 9-Chloromethyl-Anthracene And 2-Bromomethyl-Anthraquinone, Jesus B. Tapia

Master's Theses

Fatty acids are carboxylic acids with long alkane or alkene chains and are important components of living organisms. The presence of the carboxylic acid is analytically very important since it allows for derivatization with fluorescence reagents such as 9-chloromethyl-anthracene (9-CMA) for HPLC analysis. A method for the analysis of fatty acids using 9-CMA and 2-bromomethyl-anthraquinone (MAQ-Br) was developed. The method utilizes a modified protocol previously used for the analysis of short-chain carboxylic acids with 9-CMA. The modified protocol was applied to medium- and long-chain fatty acids for analysis by HPLC with UV-visible and fluorescence detection. After successful derivatization and analysis …

Examining Student Perceptions: Ethics And Misconduct In Today's Police Department, William Andrew Davis

Master's Theses

Police ethics and decision making are issues of concern to both academic scholars and police leaders. While previous studies have focused on perceptions of police officers, little research has focused on the perceptions of young people about police ethical decision-making. This study aims to capture such perceptions from a cohort of college students majoring in criminal justice. Students from an undergraduate criminal justice program (n=263) were surveyed to determine their attitudes toward various ethical components of police work, including the prevalence of misconduct and the impact of a college education on ethical decision-making. Moreover, the effect of successful completion of …

The Treatment Utility Of Hypothesis-Driven Functional Analysis Methods For Students Whose Behavior Is Elevated During Escape, Attention, Or Escape-To-Attention Contingencies, Chandler Erin Mclemore

Master's Theses

Current research indicates that function-based treatments, based on functional analysis data can be effective for decreasing an array of problem behaviors. The vast majority of the functional analysis literature has focused on single variables that maintain problem behavior. More recently, it has been hypothesized that perhaps multiple variables may maintain a problem behavior at a given time, for example; conceivably, escape and attention could maintain a child’s problem behavior simultaneously. Research regarding multiple variables, specifically the use of an escape-to-attention (ETA) condition has been limited. Furthermore, prior studies have fallen short in reporting treatment data. The purpose of the present …

Experimental Study Of Delay Of Separation On A Naca 0015 Wing Model Using Synthetic Jet Actuators, Alan M. L'Esperance

Master's Theses

An experimental study has been conducted in the Cal Poly ME 0.61 m x 0.61 m (2 ft x 2 ft) subsonic wind tunnel of the effect of a piezoelectric synthetic jet actuator at 10% chord on a NACA 0015 finite wing up to α = 20° at ReC = 100,000. It was observed that the actuation is able to delay the separation over the NACA 0015 finite wing model up to α = 20°. For all the Cμ values tested, the synthetic jet excitation is effective at F+ = 1, 2.8, and 13.9 at α = 16°, but only …

Experimental Investigation Of Active Wingtip Vortex Control Using Synthetic Jet Actuators, Peter J. Sudak

Master's Theses

An experiment was performed in the Cal Poly Mechanical Engineering 2x2 ft wind tunnel to quantify the effect of spanwise synthetic jet actuation (SJA) on the drag of a NACA 0015 semispan wing. The wing, which was designed and manufactured for this experiment, has an aspect ratio of 4.20, a span of 0.427 m (16.813”), and is built around an internal array of piezoelectric actuators, which work in series to create a synthetic jet that emanates from the wingtip in the spanwise direction. Direct lift and drag measurements were taken at a Reynolds Number of 100,000 and 200,000 using a …

Jackson's Flying Dutchmen: The Significance Of The Royal Netherlands Military Flying School, Samuel Howard Ward

Master's Theses

From May 1942 thru February 1944, the United States allowed the Netherlands to train its aviators at Jackson Army Air Base. Known as the Royal Netherlands Military Flying School, the training the Dutch conducted helped rebuild the Royal Netherland Air Force and the air component of the Royal Netherland Navy. The Dutch military came to Jackson because they lost their territory to foreign invaders. Furthermore, the surviving members of the Dutch military felt compelled to endure and carry on the fight. The United States military selected Jackson Army Air Base because of its geographic location, the existing infrastructure at the …

Self-Assembled Gold Nanoplexes For Cancer-Targeted Sirna Delivery, Yongliang Shi

Master's Theses

Through layer-by-layer method, the authors have constructed three Au nanoplexes: AuPEI/RNA/PEI, AuPEI/RNA/PEI-mPEG, and AuPEI/NA/PEI-PEG-FA. All the nanoplexes are characterized by UV-vis spectrometry, DLS, and zeta potential. The surface density of the first layer PEI and second layer RNA were also determined. Moreover, the Au nanoplexes can protect siRNA from RNase degradation and are stable in cell culture medium.

siGLuc-ppp, ssRNA₈₀, and siF17 were delivered by the assembled Au nanoplexes, and the results were analyzed by GLuc assay, TB assay, and Luciferase assay. In terms of RNA delivery, the Au nanoplexes AuPEI/RNA/PEI exhibited excellent gene silencing efficiency (or causing …

Examination Of High School Students' Understanding Of Geometry, Brantley Grant Pierce

Master's Theses

Not every student learns geometry instruction the same. Inside today’s classroom, one will find a diverse collection of students with different learning styles, background knowledge, and cognitive abilities. Students with high cognitive skills may sit next to those who struggle to maintain the material of a single subject. It is the job of an educator to accept the students as they are and guide them through a successful academic journey. This process is called Differentiated Instruction. Gregory and Chapman, authors of Differentiated Instructional Strategies: One Size Doesn’t Fit All, state that the term differentiation is a philosophy that allows instructors …

The Relationship Between Mothers' Physical Self-Perceptions, Exercise Self-Regulation, Body Image Discrepancy And Sport-Specific Socialization Support For Their Daughters, Janelle K. Beilman

Master's Theses

Opportunities in youth sport are impacted by many socialization factors. In order to keepfemales engaged in sport, the study of additional factors that predict girls sport socialization is important. This study investigated the relationships among mothers’ physical self-perceptions, self-regulation of exercise, body image discrepancies (BID) and sport/activity socialization for their daughters. One hundred and four mothers (M= 44.932, SD= 5.8078) completed self-report questionnaires that assessed their physical self-perceptions, exercise self-regulation, body image discrepancy and support for their daughters’ participation in 20 different sports and physical activities. Results indicated that no significant correlations between the physical self-perception competence and most importance …

Predictors Of Major Commitment, Anna Jill Womack

Master's Theses

Contextual (e.g. job fit, job involvement), individual (e.g. job satisfaction, need for achievement), and demographic (e.g. gender, educational level) factors have been related to forms of career commitment (i.e. affective, continuance, and normative commitment), highlighting that the commitment one feels toward his or her career is a complex variable. Furthermore, commitment has been associated with intent to remain within a profession or organization (Bowling, Beehr, & Lepisto, 2006; Den Hartog & Belschak, 2007; Duffy, Dik, & Steger, 2011; Goulet & Singh, 2002), suggesting that commitment is an important component of retention within a career. Correspondingly, commitment to one's academic major …

Because A Fire, A Lover's Quarrel: Poems, Clifton Clyde Ward

Master's Theses

This thesis comprises poems written and/or revised over the past two years. They mark the development of my aesthetic and writing ability thus far and are representative of the training and practice incited by my own efforts and those of my professors during my enrollment in the Master of Arts degree in English, Creative Writing emphasis. The majority of these poems are written in an open form, and all of them fall under three general categories: autobiographical, absurdist, or formal.

Effects Of Water Parameters On Container Mosquito (Diptera: Culicidae) Oviposition And Performance, Stephanie Sue Schelble

Master's Theses

Water body parameters have a considerable effect on the communities that develop within them. In small container habitats like tires, the depth, surface area, and volume effect the development and success of the mosquito communities. This study investigated the choices of the adult female mosquitoes, Aedes albopictus and Culex quinquefasciatus, between different depths and surface areas. In addition, larval performance was determined under differing depth and larvae densities. Oviposition studies showed that Ae. albopictus had a preference for deeper habitats (χ²= 14.2902, p= 0.0139) but did not prefer any surface areas (χ²= 7.2321, p= 0.0649) though …

Psychopathology And Sexual Addiction As Correlates Of Disordered Attachment, Natasha Lisa Laurent

Master's Theses

The current study examined associations between insecure adult romantic attachment and symptoms of psychopathology, disordered personality, and problematic sexual behaviors in a clinical sample of 402 men in treatment for sexual addiction. Anxious and avoidant attachment were hypothesized to correlate with certain constructs of psychopathology, disordered personality, and dimensions of problematic sexual behaviors. Multiple regression analyses were conducted to examine the hypothesized relationships using data from scales of the Minnesota Multiphasic Personality Inventory- 2-Revised Form (MMPI-2-RF), the Sexual Dependence Inventory – 4.0 (SDI – 4.0), and the Experiences in Close Relationships-Revised (ECR-R). Results suggested greater similarities than expected across higher-order …

Selling Tradition: Impression Management And Draft Animal Agriculture Of A Mississippi Farmstead, Matthew Corbin Lance

Master's Theses

This thesis is a case study of a family of farmers in Mississippi’s Piney Woods who use horse-drawn equipment to grow crops. This practice is notable in the context of a larger agricultural system that prioritizes mechanization (particularly the use of tractors). The production style and their use of local direct selling via farmers markets allowed them to thrive economically because they were able to tap into a niche market of consumers desiring an alternative to the modern, conventional agricultural system.

Other literature on Alternative Food Networks (AFN) discusses the issues of alterity and appropriation—that is, whether AFN ventures are …

The Ontogeny Of Whistle Production In Infant Atlantic Bottlenose Dolphins (Tursiops Truncatus) During The First Thirty Days Of Life, Brittany Leigh Jones

Master's Theses

The manner in which dolphin calves acquire their whistle repertoire is largely unknown. This paper focuses on whistle development in four bottlenose dolphin calves during the first thirty days of life in order to increase our understanding of the early emergence of whistles and whistle-like vocalizations. The acoustic parameters of whistle-type vocalizations (i.e., whistles and whistlesquawks) that coincided with a bubblestream emission from the focal calf and/or its mother were analyzed, as were the behavioral states of the mother-calf pair during the emission of such vocals. Mother and calf whistle rates are inversely related, with the mother whistling more often …

Effects Of Selective Grazing By Microzooplankton On Phytoplankton Composition In A Subtropical Estuary, Amanda Marie Mcgehee

Master's Theses

Rates of phytoplankton growth and microzooplankton grazing were measured at two locations within the Bay of St. Louis, MS, over the course of three months to explore the dynamics of the phytoplankton community. Community growth rates were estimated based on the changes in chlorophyll a (chl a) concentration using the dilution technique, (Landry and Hassett, 1982) and a C-specific rate was obtained using chl a labeling (Redalje and Laws, 1981). Concentrations of chl a were determined using high performance liquid chromatography (HPLC) and fluorometry. HPLC was also employed to obtain class specific growth and grazing rates, using either marker pigments …

Haunted To Death: Subverting Genre And Reader Expectations In Lewis Carroll's Phantasmagoria, Elissa Anne Graeser

Master's Theses

This study of Lewis Carroll’s Phantasmagoria argues that the poem failed to achieve critical and popular success due to unmet reader expectations. The poem is a haunted house or ghost story and in many ways follows the familiar formula of the Victorian ghost story. However, Carroll’s political and generic satire alters various aspects of the anticipated structure, thereby creating a work that fails to satisfy readers on multiple levels. The failure of a work by a successful author writing within a popular genre is particularly significant for what it shows us about the relationship between genre, consumerism, and literary criticism.