Digital Commons Network^™

A Frequency-Modulated Continuous Wave-Based Boundary Detection System In A Small Pcb Profile, Hamid R. Asgarian

Master's Theses

Falls are a cause of concern for the elderly because it can make them unable to call for help. A monitoring system can detect automatically their immobility and provide help to the elderly if they fall. Ultra-wide band signals for a monitoring system is an excellent choice since it has low enough power to not interfere with other medical and household electronics as well as being able to transmit data to a central monitoring unit. One part of this monitoring system is a boundary detection system used to verify that the monitoring system is not capturing events outside the monitoring …

The Process Of Keeping Creative Expression And Artistic Freedom Unencumbered And Uncensored: A Study Of Student Actors In The Musical [Title Of Show], Mathew B. Hagmeier

Master's Theses

Creativity and the ability to freely devise and express are human capacities recognized to be highly important in today’s world. Yet, while many champion these qualities, modern society continually makes achieving them a laborious process, riddled with the pressure of success and commercial marketability. Two years of researching and devising educational methodologies surrounding the use of theatre as a tool for the development of students’ unbridled creativity, expression, and self-efficacy have led me to ask the following questions of this process: Can students achieve authentic creative self-expression inside the confines of portraying a pre-written character? How does one freely express …

The Effects Of Check-In/Check-Out And Check-In/Check-Out In Combination With Social Skills Training For Students Who Exhibit Disruptive Classroom Behavior, Aimee Maldonado

Master's Theses

The purpose was to investigate the additive effects of Social Skills Training (SST) to Check-in/Check-out (CICO) on academic engagement of students. Participants were 3 elementary students who exhibited disruptive behavior who were nominated by teachers. The two dependent variables were the level of Appropriately Engaged Behavior (AEB) of the student as well as the student's behavior ratings indicated by teacher responses on the Daily Behavior Report Card (DBRC) with and without SST. A noncurrent multiple baseline across students design was used to examine both dependent variables. Goldstein and McGinnis' program, Skillstreaming the Elementary School Child, was used during SST. The …

Profession Of Faith: Congressional Websites And Religious Expression In The 112th Congress, Molly Jaye Mcguffee

Master's Theses

The idea of culture wars in politics suggests that American voters have polarized according to their positions on moral issues, and a religious gap in the electorate also contends that voters are polarized on these issues according to their religious beliefs and practices. Research shows that members of Congress send cues about their faith to their constituents, who in turn use the information to assess their representatives and determine their members' position on these moral issues. To determine how these cues are delivered and who delivers the information, I combed 100 Senators' and 435 Representatives' from the 1121 h Congress …

A Place Like Home, Tabitha Denae Epperson

Master's Theses

On August 29, 2005, Hurricane Katrina changed many things. This storm destroyed buildings, businesses, places of worship, and homes. People lost their lives, possessions, way of life, and for those that survived, their lives now were measured in two eras - pre and post Katrina. Because this natural disaster turned their lives upside down, both in large and small ways, their lives would never be the same. This thesis . documents stories of those that for various reasons chose to stay on the Mississippi Gulf Coast after Katrina. Twenty-five interviews of residents of Pass Christian explore what exactly is a …

The Effects Of Dro And Dra For Increasing Academic Engagement And Decreasing Disruptive Behavior Of Elementary Students In General Education Classrooms, Jonna Lea Halphen

Master's Theses

The research literature suggests that functional assessment and differential reinforcement methods are effective for decreasing an array of problem behaviors. However, research is limited in the number of studies including children of typical development exhibiting common problem behaviors (e.g., inappropriate vocalization, off-task behavior) in a general education setting. In addition, previous studies have failed to report data regarding increases in appropriate replacement behaviors. The purpose of the present study was to examine the relative effectiveness of differential reinforcement of other behavior (DRO) and differential reinforcement on alternative behavior (DRA) for decreasing problem behavior and increasing academically engaged behavior with elementary-age …

Fungal Biofilm Colonization And Succession On Artificial Reefs In The North-Central Gulf Of Mexico, Amy Leigh Salamone

Master's Theses

This study represents the first characterization of natural mixed-species fungal biofilm communities on artificial reefs in the marine environment. Previous fungal biofilm studies have failed to observe the naturally-occurring biodiversity in coastal areas, which comprise the most utilized zone of the marine environment. Artificial reefs can increase fishing yields, amplify oyster habitats, contribute to shoreline stabilization, promote good water quality, and deter pollution. Proper management practices of artificial reefs require knowledge of the colonization of these new habitats by marine organisms and their subsequent succession. Fungi, along with bacteria, archaea, protists, algae, and diatoms, quickly form a complex biofilm on …

Perceptions And Realities Of The Irish Republican Army During The Second World War, L.B. Wilson Iii

Master's Theses

This thesis investigates the British and German perception of the IRA and claims that the organization represented an insurmountable obstacle to the progress of both German intelligence and British counter-intelligence. The IRA was also the primary contributor to the political troubles oflrish neutrality during World War II. It examines the perceived threat of the IRA in the minds of the Irish Prime Minister Eamon de Valera and British Prime Minister Winston Churchill and those ministers' respective governments. The thesis looks at official debates in the British Parliament and the Irish Dail as well as interwar newspapers and official records. Additionally, …

Mortality Assessment Of Redwood And Mixed Conifer Forest Types In Santa Cruz County Following Wildfire, Steve R. Auten

Master's Theses

On August 12, 2009, the Lockheed Fire ignited the west slope of the Santa Cruz Mountains burning approximately 7,819 acres. Foresters and other land managers were left with challenging decisions on how to evaluate tree mortality. Big Creek Lumber Company, California Polytechnic State University, San Luis Obispo (Cal Poly)’s Swanton Pacific Ranch (SPR), and other resource professionals familiar with this region teamed up to develop a method for evaluating damage and thereby mortality for redwood, California nutmeg, live oak, tanoak, California bay, Pacific madrone, big leaf maple, Douglas-fir, Monterey pine, and knobcone pine. Quantitative damage criteria were used to design …

Effect Of Short-Term Estrogen Depletion On Compact Bone Microdensitometry In The Ewe, Cailyn Bugbee

Master's Theses

Osteoporosis affects the human skeleton through the direct effects of the disease on the function and structure of bone. Individuals who are affected by osteoporosis may be subject to serious fractures and it is estimated that annually approximately 1.5 million fractures can be attributed to this disease [1]. The disease is categorized as the direct side effect of increased bone porosity and bone loss and is directly linked to estrogen deprivation [2]. Animal models are often used to make initial conclusions about the effects of the disease or pharmacological treatments. In this study, sheep were chosen as a representative animal …

Noise Reduction With Microphone Arrays For Speaker Identification, Zachary Gideon Cohen

Master's Theses

The presence of acoustic noise in audio recordings is an ongoing issue that plagues many applications. This ambient background noise is difficult to reduce due to its unpredictable nature. Many single channel noise reduction techniques exist but are limited in that they may distort the desired speech signal due to overlapping spectral content of the speech and noise. It is therefore of interest to investigate the use of multichannel noise reduction algorithms to further attenuate noise while attempting to preserve the speech signal of interest.

Specifically, this thesis looks to investigate the use of microphone arrays in conjunction with multichannel …

Low Cost Neurochairs, Frankie Pike

Master's Theses

Electroencephalography (EEG) was formerly confined to clinical and research settings with the necessary hardware costing thousands of dollars. In the last five years a number of companies have produced simple electroencephalograms, priced below $300 and available direct to consumers. These have stirred the imaginations of enthusiasts and brought the prospects of "thought-controlled" devices ever closer to reality. While these new devices were largely targeted at video games and toys, active research on enabling people suffering from debilitating diseases to control wheelchairs was being pursued. A number of neurochairs have come to fruition offering a truly hands-free mobility solution, but whether …

Calibration And Characterization Of Cubesat Magnetic Sensors Using A Helmholtz Cage, Justin Dean Foley

Master's Theses

Small satellites, and CubeSats in particular, have quickly become a hot topic in the aerospace industry. Attitude determination is currently one of the most intense areas of development for these miniaturized systems and future Cal Poly satellite missions will depend heavily on magnetometers. In order to utilize magnetometers as a viable source of attitude knowledge, precise calibration is required to ensure the greatest accuracy achievable. This paper outlines a procedure for calibrating and testing magnetometers on the next generation of Cal Poly CubeSates, utilizing a Helmholtz cage to simulate any desired orbital magnetic field that would be experienced by a …

Amaethon – A Web Application For Farm Management And An Assessment Of Its Utility, Tyler Yero

Master's Theses

Amaethon is a web application that is designed for enterprise farm management. It takes a job typically performed with spreadsheets, paper, or custom software and puts it on the web. Farm administration personnel may use it to schedule farm operations and manage their resources and equipment. A survey was con- ducted to assess Amaethon’s user interface design. Participants in the survey were two groups of students and a small group of agriculture professionals. Among other results, the survey indicated that a calendar interface inside Amaethon was preferred, and statistically no less effective, than a map interface. This is despite the …

"We Need The Storm, The Whirlwind, The Earthquake": The Intersection Of Language And Violence In Nat Turner's "Confessions" And Frederick Douglass's My Bondage And My Freedom, Allison L. Tharp

Master's Theses

Resistance literature is an established genre, dating back to the late eighteenth century, but it underwent a rhetorical revision as slavery increased within the United States in the years leading up to the Civil War. As slaves and free blacks began to rebel against their oppressed condition, they "stole" two prominent tools whites used_ to - oppress slaves: language and violence. Frederick Douglass's My Bondage and My Freedom is a self-conscious revision within resistance literature that argues for national change by advocating physical violence with written language. Reading this text as an intertext with Nat Turner's "Confessions" reveals the ways …

An Exploration Into The Perceived Effects Of International Volunteering And Service On Host Communities In The Global South, Katelyn Kerrigan

Master's Theses

Presently, we are witnessing an unprecedented expansion of Western youth participating in short-term (1 to 2 week) international volunteering and service (IVS) programs in developing countries located predominantly in the Global South (Lough, 2012; Sherraden et al., 2008). Current academic literature around the impacts IVS has on receiving host communities in developing countries is highly controversial. This study utilizes ethnographic research, involving a combination of participant -observation and semi-structured interviews, to gain the perspectives of the Fijian Highland villagers from the IVS host community, on the positive and negative effects of hosting American (aged 14-18) participating in short-term (one-week) international …

Design And Synthesis Of Fluorescence Turn-On Probes For Iron, Randy K. Jackson

Master's Theses

No abstract provided.

Consumer Purchase Decisions Regarding Screw Cap Wines, Lauren M. Jeter

Master's Theses

Screw cap wine closures provide many benefits in maintenance of wine quality over time, however acceptance of their use by purchasers has varied. This work first investigates how factors like age, gender, income and education affect the decision to purchase screw cap wines and to what extent these factors impact consumer decisions to bring screw cap wine to various social settings. The results of a questionnaire pooling attitudes and behaviors of wine purchasers (n=319) indicate that factors such as age, wine knowledge, income and gender influence a consumer’s decision to purchase screw cap wine. Education and income positively impact the …

Implementation Of Novel Group Delay Decomposition Method And Surgical Protocol For Assessing Peripheral Neuropathy, Sammy Paul Nicolas

Master's Theses

This paper outlines a surgical procedure for exposing and stimulating the sciatic nerve of an anesthetized rodent for purposes of obtaining conduction velocity readings. The ability to accurately quantify nerve conduction velocity has potential for use in the field of diagnostic medicine and disease characterization. An accurate reading depends on both the surgical method used to expose the desired nerve without imposing onto it any physical trauma as well as the stimulation protocol used to initiate action potentials. This paper contains the specific steps required to set up the necessary hardware and software for electrical stimulation as well as a …

Fault Mapping With The Refraction Microtremor And Seismic Refraction Methods Along The Los Osos Fault Zone, Justin Riley Martos

Master's Theses

The presence of active fault traces in proximity to any new infrastructure project is a major concern for the design process. The relative displacements that can be experienced in surface fault rupture during a seismic event must be either entirely avoided or mitigated in some way. Blind faults present a significant challenge to engineers attempting to identify these hazards. Current standards of practice employed to locate these features are time consuming and costly. This work investigates the geophysical methods of refraction microtremor (ReMi) and seismic refraction with regard to their applicability in this task. By imaging a distinct lateral variation …

Constant Conduction Angle Biasing For Class C Monolithic Rf Power Amplifiers, Gursewak Singh Rai

Master's Theses

In modern wireless communication systems, a base station typically serves a few hundred users within its cell coverage. To combat the near-far problem – the situation where a nearby user’s strong cellular signal masks the cellular signal of a faraway user – base stations continually enforce power control. That is, nearby users must lower their transmit power. In CDMA technology, power control can be as large as 70-80dB. At low power outputs, this greatly impacts the performance of the RF power amplifier (PA) in the cellular device. For small RF drives, the magnitude of the output RF current approaches the …

Narrative Abilities Of Optimal Outcome Children And Adolescents With A Previous History Of Autism Spectrum Disorder (Asd), Joyce Suh

Master's Theses

Background: Autism Spectrum Disorders (ASDs) have traditionally been considered a lifelong condition; however there appear to be a subset of people who make such significant improvements that they no longer meet diagnostic criteria for autism. The current study examines whether these “optimal outcome” (OO) children and adolescents continue to have subtle language and socio-cognitive deficits. Method: The narratives of 15 children and adolescents with a history of ASD who achieved optimal outcomes (OO), 15 high-functioning children and adolescents with a current ASD diagnosis (HFA), and 15 typically developing peers (TD) were evaluated. Results: OO children and adolescents have few residual …

The Impact Of Water On Girls' Formal Education: A Study Of Kenyan Secondary Schools, Jennifer Emick

Master's Theses

This study applies a human rights lens to view how the lack of access to potable water in Kenya’s rural areas impacts girls’ education. This research is intended to serve as a baseline for iteration and expansion, with the long-term goal of developing a greater understanding of the ways in which water development projects and the smarter provision of basic resources can be used as strategies for achieving gender equality in both education and civic participation.

Development And Implementation Of A Calibration Procedure For Complex Impedance Spectrum Measurements With Applications To Embedded Battery Health Monitoring And Management Systems, William H. Morrison

Master's Theses

Energy storage devices such as rechargeable Lithium ion batteries are assuming an increasingly prominent role in society, covering applications from electric / hybrid electric vehicles to personal portable electronics. In response to this increasing demand, technologies that monitor battery health and remaining useful life have developed. One such system is the Smart Battery Status Monitor (SBSM), developed by the Idaho National Laboratory, Montana Tech and Qualtech Systems, Inc. The SBSM utilizes impedance spectrum measurements using a subsystem called the Impedance Measurement Box (IMB). The impedance measurements are complex quantities (having both a resistive and a reactive component) and are made …

Transferability And Robustness Of Predictive Models To Proactively Assess Real-Time Freeway Crash Risk, Cameron Hunter Shew

Master's Theses

This thesis describes the development and evaluation of real-time crash risk assessment models for four freeway corridors, US-101 NB (northbound) and SB (southbound) as well as I-880 NB and SB. Crash data for these freeway segments for the 16-month period from January 2010 through April 2011 are used to link historical crash occurrences with real-time traffic patterns observed through loop detector data.

The analysis techniques adopted for this study are logistic regression and classification trees, which are one of the most common data mining tools. The crash risk assessment models are developed based on a binary classification approach (crash and …

Challenging Space Through Activism: Scaling Local And Global Issues At The 2012 London Olympic Games, Bridget Botelho

Master's Theses

This qualitative study focuses on issues of space created by the Olympic Games in London and the ways in which activists demonstrated against these issues by using space to their advantage. The Olympic Games is a phenomenon that scales local, national and international space in various ways, through its effects on global culture, identity, and economic processes. The games have a history of protest and activism, but the issues created by the games and struggles against them are not often discussed. My study aims to analyze the spatial effects of the Olympics on a local and global level through the …

Developing And Building A Lean Based Rfid Electronic Kanban Prototype, Ryan Chang

Master's Theses

The kanban system is a popular Toyota lean manufacturing tool used to help facilitate material movement between workstations and suppliers. Since the 1950’s, the original kanban system has undergone many different variations due to the advancement of technology and unique company implementation. This report focuses on the development and building of a new variation of the kanban system using lean principles while integrating radio frequency identification (RFID) technology with a fully electronic based kanban card system. This new type of kanban system will be called the RFID E-Kanban in this report. Since the lean philosophy is to reduce non-value added …

Responding To Dangerous Accidents Among The Elderly: A Fall Detection Device With Zigbee-Based Positioning, Michael R. Putnam

Master's Theses

The following paper describes a fall detection and activity monitoring system with position detection based on Zigbee transceivers.The main objective is to reduce the time taken for emergency personnel to respond to falls among the elderly. Especially when the victim is unconscious or delirious, position tracking reduces location determination time within a busy hospital or nursing home environment and facilitates immediate treatment. Reduced response times correlate to decreased morbidity and mortality rates. Background is provided on the major wireless network advances currently deployed in a healthcare setting for asset and personnel tracking, etiology of falls, and several methods of detecting …

Hierarchical Routing Protocols In Wireless Sensor Networks, Andrew David Lebeau

Master's Theses

In recent wireless sensor network research, using a mobile data center (sink) to collect data has shown the ability to decrease the overall energy expenditure of the sensor field. Before the introduction of mobile sinks, many different routing protocols were developed under the assumption of a stationary sink. This work compares three such routing protocols, one hierarchical and two non-hierarchical, under the assumption of a mobile sink to determine which is best. The three protocols are tested against varying sink speed, node communication radius, and sensor field node populations. Different sink movement strategies and modifications to the routing protocols are …

An Alternative Dual-Launch Architecture For A Crewed Asteroid Mission, Steven M. Korn

Master's Theses

This thesis is a feasibility study for a crewed mission to a Near Earth Asteroid (NEA). An alternate dual-launch architecture is proposed and analyzed against a more established architecture. Instead of a rendezvous in a low-Earth parking orbit, the new architecture performs the rendezvous while the two spacecraft are on an Earth-escape trajectory to the destination NEA. After selecting a target asteroid, 2000 SG344, each architecture will have its best mission compared to the best mission of the other architecture.

Using the new architecture, a mission is created to the chosen NEA, 2000 SG344. A back-up Orion MPCV and a …