Digital Commons Network^™

Comparing Taxi Clearance Input Layouts For Advancements In Flight Deck Automation For Surface Operations, Lara W.S. Cheng

Master's Theses

Airport moving maps (AMMs) have been shown to decrease navigation errors, increase taxiing speed, and reduce workload when they depict airport layout, current aircraft position, and the cleared taxi route. However, current technologies are limited in their ability to depict the cleared taxi route due to the unavailability of datacomm or other means of electronically transmitting clearances from ATC to the flight deck. This study examined methods by which pilots can input ATC-issued taxi clearances to support taxi route depictions on the AMM. Sixteen general aviation (GA) pilots used a touchscreen monitor to input taxi clearances using two input layouts, …

Location Gathering: An Evaluation Of Smartphone-Based Geographic Mobile Field Data Collection Hardware And Applications, Joel Clark

Master's Theses

Mobile field spatial data collection is the act of gathering attribute data, including spatial position, about features in a study area. A common method of field data collection is to use a handheld computing device attached to a global navigation satellite system in which attribute data are directly inputted into a database table. The market for mobile data collection systems was formerly dominated by bulky positioning systems and highly specialized software. However, recent years have seen the emergence and widespread adoption of highly customizable and user-friendly mobile smartphones and tablets. In this research, smartphone devices and smartphone data collection applications …

Seeing Success: Biographies Of Low-Income Students, Julia M. Morrice

Master's Theses

The purpose of this narrative ethnographic study was to explore the success stories and lived experiences of six low-income students, utilizing an asset-based approach and attention to cultural wealth. Low-income students are less likely to attend college, and those that do are less likely to complete a degree. There is presently a lack of asset-based research that explores the successes of low-income students. A semi-structured interview protocol yielded biographical narratives of low-income students, which included discussions about identity and provided insight into the cultural wealth possessed by low-income students. In an effort to better understand the use of visual methodologies …

A Sentimental Pigeon Keeper, Adnan Alam

Master's Theses

This is a memoir – a narrative work of creative nonfiction. This story takes place over a single day, during the summer of 1992, when the life of a thirteen-year old boy falls apart. Years of misbehaving culminate into something so devastating that his world has no other options but to explode. The day starts with his mother selling off his beloved pigeons, followed by his father’s stealing of a famous painter’s painting, all the while the boy is terrified by the possibility of having impregnated one of his cousins, who is five years his senior. During this transformative day, …

One County, Two Libraries: Watsonville And The Organizing Of The Santa Cruz County Library System, 1900-1930, David Robert Addison

Master's Theses

This thesis investigates the creation of California’s Free County Library System during the Progressive Era. Previous histories of the topic have conveyed a partial picture of those involved in organizing county libraries, focusing on leaders at the state level, such as James L. Gillis and Harriet Eddy. Using Santa Cruz County as a case study, this thesis examines the overall process of organizing a county library system at the local level.

Primary source materials consulted include correspondence and publications from the California State Library, newspaper accounts from the time period, California Library Association meeting minutes, News Notes of California Libraries, …

The Moderating Role Of Perceived Organizational Support On The Relationship Between Bullying And Work Behaviors, Zakwan Salahieh

Master's Theses

Workplace bullying has been linked to many unfavorable outcomes that can be very costly to organizations. One way to minimize the impact of this negative behavior is through perceived organizational support (POS). Thus, researchers have called for more studies examining the joint effects of workplace bullying and POS on various outcomes. The purpose of this study was to examine whether POS would moderate the relationship between workplace bullying and outcomes that are related to work behaviors and motivations, namely, organizational citizenship behaviors (OCBs) and work engagement. A total of 224 individuals working in a variety of industries participated in an …

Trajectories Of Air Parcel Motions In Mars' Atmosphere Computed Using Hysplit, David Bruggeman

Master's Theses

An analysis of the advection of air parcels in the Martian atmosphere during the 2001 global dust storm through the use of three-dimensional trajectories is presented. The Hybrid Single Particle Lagrangian Integrated Trajectory (HYSPLIT) model, well-known for trajectory, dispersion, and deposition modeling, and originally developed for Earth was modified for Mars to provide forward and backward trajectories. The custom HYSPLIT for Mars uses meteorological input generated by the NASA Ames Mars General Circulation Model (MGCM). The 2001 global dust storm was the earliest on record (Ls ~ 180°) and originated from local dust storms around the Hellas basin as the …

Chasing Rx: A Spatial Ethnography Of The Crossfit Gym, Matt Crockett

Master's Theses

CrossFit is a group fitness program that incorporates a variety of weightlifting and gymnastic movements performed at high intensities. Although there is growing research on CrossFit’s physiological and behavioral outcomes, few studies have qualitatively examined the program’s psychological and sociological characteristics. Drawing from Henning Eichberg’s (1998) work on spatial geography, this five-month ethnographic study examined the space and place of two San Francisco Bay Area CrossFit gyms as an introduction to a broader discussion on CrossFit subculture and evolving discourses about the body, health, and fitness. Specifically, three major themes about the CrossFit space emerged from the participant-observation data, including: …

“Great Nature, Refuge Of The Weary Heart:” A Regional And Literary Exploration Of The Early Grove Plays Of The Bohemian Club, Jeremy Denouden

Master's Theses

In 1872, a group of San Francisco newspapermen came together to start their own men’s club. This group, which named itself the Bohemian Club, was an outgrowth and a representative of the rapid development of the city of San Francisco at that time. Shortly after its founding, the club began making an annual retreat to the redwood forests north of the city. Eventually, the club began producing elaborate performances of musical dramas, referred to as Grove Plays, written and performed exclusively for club members at these summer retreats. This thesis, which takes its name from a line in one of …

Diversity And Community Structure Of Marine Invertebrate Fossil Assemblages From The Neogene Of The Dominican Republic, Nina Abdollahian

Master's Theses

River valleys in the Cibao Valley Basin, located in the northern Dominican Republic, expose three fossiliferous Neogene-aged strata (the Cercado, Gurabo, and Mao formations) that show evidence for shifting marine paleo-habitats. This study system is ideal for analyzing the relationships between environmental changes and faunal community stability through time. A new database was developed from the published literature to examine changing diversity patterns and to determine if the Cibao Valley communities exhibited stasis over a 3 My time span (6.5 Ma to 3.5 Ma) across shallow- to very deep-water environments. This database includes spatio-temporal occurrence data for 179 species of …

Tales Of Archaeological Places: Visualizing Mayan Pre-Colonial Settlement Patterns, Angela Ivanov

Master's Theses

In order to visualize ancient Mayan settlement patterns and demography through time, data derived from 26 published archaeological sites were collected and plotted onto three discrete map media. These data were subdivided into six time periods ranging from Pre-Classic to Post-Classic, and were simulated for each map medium. Specific attention was given during the selection of geographical locations, natural landscape features, map annotation, layers and coordinates. Tabulated information were site names, coordinates, site founding dates, site decline/abandonment dates, and estimated population. Combined with existing country base map layers downloaded from online geographical sources and time series animation (an animated map), …

Seasonal Road Layout Design In Mountainous Terrain Using Gis With The Side Hill And Least Cost Path Methods, Emil Harold Brundage

Master's Theses

Seasonal road design in mountainous terrain consists of four main phases: route selection, field investigation, surveying, and analysis. The first phase, route selection, consists of two parts: selecting control points at strategic locations, and then determining potential routes between those points. Two geographic information system (GIS) geoprocessing automations were developed to aid a road planner in determining routes between control points. Both automations utilized Environmental Systems Research Institute’s (ESRI) ArcGIS software package. The first method developed was the least cost path method, which makes use of ArcGIS’s cost path tool to find a route between points following a gradual slope. …

Structure, Construction, And Geochemistry Of The Cretaceous Seven-Fingered-Jack Intrusive Complex In The Klone Peak Area, North Cascades, Washington, Kelly N. Dustin

Master's Theses

The highly elongate Seven-Fingered-Jack intrusive complex (SFJIC) of the North Cascades, Washington provides an excellent opportunity to study the construction, geochemistry, and structure of a well-exposed mid-crustal pluton. The interior ~92 Ma Main Body tonalite has markedly heterogeneous and mafic domains that may represent interactions between multiple batches of melt. The ~78 Ma marginal Kelly Mountain suite includes a mafic complex containing abundant hornblendite, diorites of variable heterogeneity, and tonalite. Field mapping and structural, petrographic, and geochemical analyses are interpreted to indicate that this intrusive complex was built incrementally by many batches of melt. The dominantly NW-striking and NE-dipping magmatic …

Utilization Of Differential Thrust For Lateral/Directional Stability Of A Commercial Aircraft With A Damaged Vertical Stabilizer, Long Lu

Master's Theses

This thesis investigates the utilization of differential thrust to help a

commercial aircraft with a damaged vertical stabilizer regain its lateral/directional

stability. In the event of an aircraft losing its vertical stabilizer, the consequential

loss of the lateral/directional stability is likely to cause a fatal crash. In this thesis,

the damaged aircraft model is constructed, and the lateral/directional dynamic

stability and frequency domain analyses are conducted. The propulsion dynamics of

the aircraft are modeled as a system of differential equations with engine time

constant and time delay terms to study the engine response time with respect to a

differential thrust …

Assessing Lesbian Gay Bisexual Resistance In Core Team Sports, Kevin Edward Lynch

Master's Theses

The purpose of this study was to examine how sport and lesbian-gay-bisexual resistance intersect with economy, media, religion, politics, education, and race and whether those institutions reinforce the hegemonic masculinity gender construction embedded in sport. Through a review of literature, I explore whether the aforementioned institutions are incorporating sociologist Eric Anderson’s inclusive masculinity or whether they are stuck in the hegemonic form mainly in the core team sport of basketball, baseball, football and hockey. Also, I investigate if Allport’s contact hypothesis has played any role in the movement from hegemonic masculinity to inclusive masculinity. Religion, education, and economy all seem …

Efficient Message Propagation In Dense Linear Ad-Hoc Networks, Shiva Moballegh

Master's Theses

In this thesis, the dynamics of the cooperative broadcast in high density 1-dimensional (1D) networks is studied using multiple levels of relays. The benefits of the cooperative broadcast in terms of transmission range and power efficiency are evaluated by approximating the network as a continuum of nodes. Two transmission protocols are studied, the single-shot transmission and the continuous source transmission. In the single-shot transmission, the source node transmits a single message, whereas in the continuous source transmission, it transmits independent messages periodically adding signal interference into the picture. For each case, the analytical expressions for successful broadcasting are presented as …

Measuring Tsunami Exposure And Pedestrian Evacuation Potential For The City Of Alameda, California, Evacuation Playbook Phases, Jeffrey Peters

Master's Theses

A maximum tsunami inundation zone modeled by the California Geological Survey (CGS) is currently the basis for all tsunami evacuations in California, although CGS is developing Evacuation Playbooks of specific event-based evacuation phases. This report estimates population exposure for the Alameda, CA, Evacuation Playbook Phases since past U.S. Geological scientific reports estimated a large difference in numbers of Alameda residents in the maximum inundation zone when compared to an event-based inundation zone. A pedestrian evacuation analysis using an anisotropic, path distance model was also conducted to understand the time it would take for populations to reach high ground by foot. …

Paying For Your Crime: The Pay-To-Stay Jail Program In California, Carla Sue Schultz

Master's Theses

Many California cities have recently implemented pay-to-stay jail programs at the local level. Pay-to-stay programs provide a safe and private incarceration experience for those who can afford the nightly fee. This study provides a theoretical analysis of the pay-to-stay jail program in relation to mass incarceration and the ever-expanding prison economy. It examines pay-to-stay programs as a new method of stratified punishment, reproducing race and class oppression within the U.S. penal regime. A case study of the Fremont pay-to-stay program offers insight into the implementation, operation, and application process for inmates seeking segregation from general county jail populations. This study …

A Comparison Of Alternative Interface Designs For Planning Software, Rachna Tiwary

Master's Theses

This study investigated the impact of varying the interface design of a software planning tool in a specific domain of the Attitude Determination and Control Operator (ADCO, where ADCO refers to a group or an individual was studied). This study extended a prior study that compared two entirely different interfaces of a software planning tool, LEGACY and NEW, and by which it was found that the NEW interface better matched the underlying domain structure and resulted in improved performance. The current study looked into the impact of varying the levels of presentation of the elements of a plan on user …

Identity And User Preference In The Presentation And Content Of Digital Archives: A Study Of The Plumas County Museum’S Haun Collection, Lindsay Morton

Master's Theses

This thesis explores user preference in the presentation and content of online archives in small, local institutions. To obtain data for this study, a collection from the Plumas County Museum in northern California was digitized, and three versions were presented on a custom-built test website: 1) a straightforward reproduction of documents in the collection; 2) a pairing of reproductions and typed transcripts; and 3) a selective, interpretive reproduction with supporting secondary material. Users with a variety of research backgrounds viewed the website and provided feedback through an anonymous, online survey. Google Analytics was also used to measure site traffic.

During …

Walt Kuhn: From Spotlight To Studio, The Art Of Show Business, Emily May Mcewan-Upright

Master's Theses

Walt Kuhn, an American artist born in New York, is often overlooked for his contribution to Modern American Art. Kuhn is typically recognized for his organizational and curatorial role in the 1913 Armory Show, but he was also internationally known in his time for his paintings of show people and as a creative director for several vaudeville and circus acts over his lifetime. During his career as a creative director, Kuhn’s artwork evolved from superficial renderings of theatre scenes to psychologically intense tronies of performers. Kuhn and other American artists, including the Ashcan group and Edward Hopper, examined the relationship …

"They Going To Throw You In Jackson Where You Belong": Depictions Of Mental Disability In The Works Of William Faulkner And Flannery O'Connor, Marie Elizabeth Lawson

Master's Theses

Mentally disabled characters in the works of William Faulkner and Flannery O’Connor are often subjected to mistreatment, neglect, and violence at the hands of their families and communities. In William Faulkner’s The Sound and the Fury (1929) and The Hamlet (1940) and Flannery O’Connor’s “The Life You Save May Be Your Own” (1955) and The Violent Bear it Away (1960), characters with mental disabilities are depicted in such a way as to evoke sympathy for the characters without the narratives overtly calling for sympathy. This is achieved through the juxtaposition of positive narrative portrayals with negative treatment by the characters’ …

Epigenetic Regulation Of Nuclear Hormone Receptor Dax-1, Michael B. Heskett

Master's Theses

DAX-1 (NR0B1) is an orphan nuclear receptor that plays a key role in the development and maintenance of steroidogenic tissue in mammals. Dax-1 is also expressed in mouse embryonic stem (ES) cells and is required to maintain pluripotency. Duplication of the X-chromosome in the region containing the NR0B1 gene results in sex reversal, and mutations in NR0B1 cause adrenal hypoplasia congenita. DAX-1 has been observed to act as a corepressor of other nuclear receptors including androgen receptor (AR), estrogen receptor (ER), and steroidogenic factor 1 (SF-1). In addition to pluripotent ES cells, DAX-1 is primarily expressed in select tissues of …

Multivariate Remote Process Sensing For Online Quality Control Of Injection Molding, Xinyao Tang

Master's Theses

A new wireless multivariate sensor (MVS) is designed, prototyped, structurally embedded into a mold structure to provide in situ feedback of four process states within mold cavity: melt temperature, melt pressure, melt velocity and melt viscosity, which closely correlate to the quality of manufactured products through the constitutive viscoelastic behavior of the polymer being processed. The developed MVS enables the improved observability of injection molding and provides a new process instrumentation and control methodology that sets up, assures, and optimizes the quality of injected products. Relationship between the key in-process states and quality characteristics (e.g., thickness and width of the …

The Effects Of Robot-Child Interactions On Interpersonal And Intrapersonal Coordination, Kinga Palatinus

Master's Theses

Coordination is crucial throughout development, from motor development and language acquisition to children’s play and other social interactions. Based on the links between motor and social behavior, proper coordination should help children connect socially with others. Being part of a larger study investigating the effects of a multisystem intervention tool for children with ASD, this work examined the effect of robot-child interaction on interpersonal and intrapersonal coordination in typically developing children. 5-year-olds and 7 year-olds participated in a four-week training protocol, where children had to copy the movements of a small humanoid robot. Measures of cross recurrence quantification analysis revealed …

Impact Of Role Model Gender And Communality On College Women’S Math Performance And Interest In Stem, Elizabeth K. Lawner

Master's Theses

The current project examined the effect of science, technology, engineering, and math (STEM) role model gender and communality and communal goal endorsement on college women’s math performance and their interest in, perceived belonging in, and perceived communal goal affordance of STEM. The first study was conducted online and did not include math performance, while the second study was conducted in the laboratory and added a math assessment. It was hypothesized that exposure to a female role model would result in greater math performance and interest and perceiving belonging in STEM, exposure to a communal role model would result in increased …

The Final Whistle: An In-Depth Analysis Of How Elite Transfer Student-Athletes Adapt To Life After Intercollegiate Sport, Julianne Hubbard

Master's Theses

Since elite intercollegiate student-athletes often elect to transfer institutions for reasons of athletic dissatisfaction, it was hypothesized that members of this population have strong, exclusive athletic identities, making the transition out of sport extremely troublesome. The following research study utilized a mixed-methods approach to examine the athletic retirement experiences of elite transfer intercollegiate student-athletes. Nine former NCAA Division I women’s soccer players provided quantitative and qualitative information regarding athletic identity, transferring, and retirement from elite sport. Using the Athletic Identity Measurement Scale (AIMS) developed by Brewer et al. (1993), ‘at-risk’ individuals likely to have experienced negative transitions from sport were …

Finite Element Formulation Of Phase Field Fracture, Alexandros N. Mathioudakis

Master's Theses

Numerically predicting crack growth is difficult due to the infinite stresses at the crack tip as well as the extreme change in material properties which will introduce numerical instabilities. This project encompasses the development of a Finite Element Code that implements the phase field physics theory developed in order to analyze crack propagation. Under this theory a new state variable is introduced which describes the phase as failed or virgin material. The phase is modeled as diffusion through the material and is driven by specified equations, and is especially useful in the prediction of high temperature creep rupture.

To test …

Use Of Thermally Grown Oxide Stress Measurements To Predict Remaining Life Of Thermal Barrier Coatings Under Realistic Turbine Engine Conditions, Nirav V. Patel

Master's Theses

Thermal barrier coatings (TBCs) are important in increasing performance and extending the life of gas turbine engine hot parts. Over the course of thermal cycling and engine operation, the coatings eventually spall off exposing superalloys to extreme temperatures. In this thesis, two aspects involving thermal barrier coating life prediction were explored. The first was by making use of stress measurements in the thermally grown oxide (TGO) to predict lives of samples subjected to non-constant furnace testing. This work used data from an earlier thesis and for the first time developed specific strategies to predict remaining life in the face of …

Sequential Logic Circuits Using Spatial Wavefunction Switched (Sws) Fets, Neeraja Jagadeesan

Master's Theses

In this thesis, sequential logic circuits have been implemented using spatial wavefunction-switched field-effect transistor (SWSFET). The spatial wavefunction-switched field-effect transistor (SWSFET) is one of the promising quantum well devices that transfers electrons from one quantum well channel to the other channel based on the applied gate voltage. This eliminates the use of more transistors as we have coupled channels in the same device operating at different threshold voltages. This feature can be exploited in many digital integrated circuits thus reducing the count of transistors which translates to less die area. The simulations of basic sequential circuits like SR latch, D …