Digital Commons Network^™

Proactive Decision Support For Intelligent Routing Of Unmanned Aerial Systems In Dynamic And Uncertain Mission Environments, Bala Kishore Nadella

Master's Theses

Unmanned Aerial System (UAS) missions are executed by teams of operators with highly specialized training and roles; however, the task demands on each operator are highly variable, often resulting in uneven workloads among operators and sometimes in mishaps. Therefore, there is a need to develop anticipative and effective decision support algorithms that permit the evaluation of courses of action (COAs), while assuring that operators are attending to the right task at the right time and that task demands do not exceed the operator’s cognitive capabilities in dynamic multi-mission environments. Motivated by the need to assist UAS operators in efficiently managing …

Exploring The Relationship Between Commuting Stress, Job Strain And Safety Behaviors While Commuting: The Dual Role Of Work-Related Rumination, Katrina A. Burch

Master's Theses

For those who commute to and from work on a daily basis, this is an activity that requires attention to both what one is doing and the environment, in order for the commute to be done safely. Although research has shown that work can spill over into home and other non-work domains, very little attention has been paid to the impact that work may have on the transition time between one’s work and home domains. The present study sought to examine the impact of daily commuting stress and end-of-day job strain on the safety of one’s commute through the experience …

Shared Space: Measuring The Boundaries And Assessing The Efficiencies, Benjamin W. Wargo

Master's Theses

Shared space is a design concept becoming increasingly common in European countries. It intentionally blurs pedestrian-driver boundaries in order to reduce vehicle speeds, create more walkable areas, and improve aesthetics and sense of place. What constitutes a shared space is not clearly defined in the existing literature. Steps toward a systematic method for assessing a space’s “level of sharedness” have been developed in this research to minimize the present ambiguity.

A paradox of shared space, suggested by numerous observers but little studied, is that while allowing freer pedestrian movement, shared space also appears to promote greater vehicle efficiency than conventional …

Revisiting Community Water Fluoridation, Jessica Marie Seyfried

Master's Theses

There is a bourgeoning controversy unknown to many surrounding one of the CDC’s top ten public health achievements of the 20^th century. After more than 50 years of implementation, community water fluoridation may not have achieved the declines in caries rates we once thought or hoped for, especially in light of alternative approaches to preventing caries including but not limited to other sources of fluoride supplementation, changes in diet, and tooth brushing behavior.

In fact, a survey of past research highlights the fact that this policy decision may be based on out of date and/or a lack of research …

Learning Delays In A Mouse Model Of Autism Spectrum Disorder, Amanda R. Rendall

Master's Theses

Autism Spectrum Disorder (ASD) is a heterogeneous neurodevelopmental disorder with core symptoms of atypical social interactions and repetitive behaviors. It has also been reported that individuals with ASD have difficulty with multisensory integration, and this may disrupt higher-order cognitive abilities such as learning and social communication. Impairments in the integration of sensory information could in turn reflect diminished cross-modal white matter connectivity. Moreover, the genetic contribution in ASD appears to be strong, with heritability estimates as high as 90%. However, no single gene has been identified, and over 100 risk genes have been reported. One of these genes -- contactin-associated-like-protein …

Authoritarian Member States In International Organizations, Matt Barg

Master's Theses

This thesis investigates under which conditions do authoritarian Member States exist in International Organizations that require democratic governance in their treaty law. The European Union is used as a case study along with two of its Member States that are in the process of transitioning to democracy from previous authoritarian regimes—Hungary and Romania. This thesis employs stealth authoritarian theory to analyze how a democratizing Member State may violate these laws and revert to authoritarian governance. It also critiques international enforcement mechanisms to consider their effectiveness to enforce their laws and norms as well as prevent an authoritarian reversal. Finally, cultural …

Thermal Transport And Melt Pool Geometry In Metallic Powder Bed Additive Manufacturing Processes For Various Novel Engineering Materials, John P. Romano Ii

Master's Theses

Laser and electron beam powder bed melting additive technologies are being rapidly adapted by industry. These technologies rely on the ability to produce defect free parts through a delicate control of the process. However, this process has not been attempted or has failed for many common metallic materials such as Aluminum. The objective of this thesis was to understand the thermal transport phenomenon in electron and laser beam powder melting technology through simulation and experiments and determine the suitable range of parameters that can be used for common metallic materials. A finite element model was developed using ANSYS APDL to …

Spatial And Temporal Use Of Early Successional Habitat Patches By A Community Of Mammals In The Northeastern United States, Kelly M. O'Connor

Master's Theses

No abstract provided.

“How Do You Define Yourself?” Mobilizing Leadership In The Graduate Employee Union Movement, Kathleen Ragon

Master's Theses

Social movement scholars agree that leadership plays a crucial role in the emergence, structure, and outcomes of social movement organizations (SMOs) and is thus an indispensable area of research. The vast majority of theories of leadership to date have been developed in contexts where participants’ movement identities are relatively stable (e.g., gender, sexual, or occupational) and engagement in the site of contestation will be long-term (e.g., workplace or nation state). However, the recent proliferation of graduate student employee unions poses a challenge to this literature because graduate students’ employment is by its very nature temporary and variable; graduate assistantship appointments …

Paleostress States And Tectonic Evolution Of The Early Mesozoic Hartford Basin, James Farrell

Master's Theses

No abstract provided.

Dislocation And Adjustment Of International Student-Athletes, Thiago Brito Lopes

Master's Theses

One reason that attracts international student-athletes to American universities could be the interest in earning high quality education with the possibility of playing high performance sports. However, when compared to other international students, differences are seen: Other foreign students who look for a degree in the US desire not only an international education, but also potentially staying in the country. The University of San Francisco, where a cosmopolitan city meets education, fits it best. At USF, 82 countries are represented, reaching a number of 1708 students. Approximately ¼ of the whole student population is international. The ratio with student-athletes is …

Power, Subjectivity, And Life In Spain: A Continuation Of Elite Power, Matthew Mason

Master's Theses

On December 20, Spain will hold national elections to determine the new prime minister and national and local parliaments. These elections will be another crossroads in the long history of Spain. The elections come about in a political and social atmosphere of ‘change’ and ‘regeneration,’ marked by the rise of two new political parties, Podemos and Ciudanos. These parties are the new forces in the political scene in Spain. This atmosphere of change is the result of the 2008 economic crisis. The economic crisis of 2008 was not only an economic crisis in Spain, but it provoked a political and …

The Tunisian Revolution: Empire And The Power Of The Multitude, Caroline A. Burns

Master's Theses

The self-immolation of Mohammed Bouazizi ignited the revolution that would oust Tunisian dictator Ben Ali in 2011. The momentum of the revolution in Tunisia spread ideas, tactics, and revolutionary chants across borders to various parts of the globe. The speed and intensity of the revolution dominated the attention of the unsuspecting global community. In order to understand the conditions under which this revolution transpired, I use Michael Hardt and Antonio Negri's theory of Empire to show how the contemporary global system functions. Through the historical development of Tunisia and concurrent rise of Empire emerges "the multitude," the heterogeneous manifestation of …

Evolution Of A Nation After A Dictatorship: How Law, Politics And Society Of The 1973 Dictatorship In Uruguay And Of The Subsequent Return Of Democracy In 1985, Potentially Helped Evolve The Nation Of Today., Jonathan A. Fein Proaño

Master's Theses

In 1973, Uruguay’s president authored a coup d’état with the military and changed the history and fabric of Uruguay. Once democracy returned to Uruguay in 1985, it was a chance to see if an evolution of the law, politics and society would occur. This thesis aims to analyze and understand the patterns of change and de-evolution or evolution that happened during the dictatorship and then over the last 30 years. I break down the process of changes that happened legally and politically, how the dictatorship and its leaders used law to destroy rule of law, and how society changed.

This …

Photooxidation Reactions Of Small-Chain Methyl Esters, Aerosol Photoelectron Spectroscopy, And The Photodissociation Of Ethylenediamine, Giel Muller

Master's Theses

Research conducted at the University of San Francisco is presented within this masters thesis, including the Cl-initiated photooxidation reactions of methyl propanoate, methyl butanoate, and methyl valerate (pentanoate), the aerosol photoelectron spectroscopy of isoprene and gamma-valerolactone, and the TPEPICO investigation of ethylenediamine. Experiments were conducted at the Lawrence Berkeley National Lab Advanced Light Source (ALS), the National Synchrotron Radiation Research Center in Hsinchu City (NSRRC), and the University of Stockton in California, respectively.

The Multidimensionality Of Schoolgirl Dropouts In Rural Bangladesh, Tiffany Yancey

Master's Theses

This thesis outlines the underlying causes for girl dropouts in the secondary school system of rural Bangladesh and assesses the barriers that affect adolescent girls and their families. The complex dynamics of the historical context within the patriarchal-dominant structure of society creates a system that hinders girls’ education and forces them into marriage at an early age. Poverty and lack of parental involvement in schools, as well as societal traditions and lack of government infrastructure play an enormous role and are the main structural factors that are linked to schoolgirl dropouts in this study. This thesis also analyzes previous education …

The Role Of The State, Multinational Oil Companies, International Law & The International Community: Intersection Of Human Rights & Environmental Degradation Climate Change In The 21st Century Caused By Traditional Extractive Practices, The Amazon Rainforest, Indigenous People And Universal Jurisdiction To Resolve The Accountability Issue, Marcela Cabrera Luna

Master's Theses

Local, national and international conventions that protect indigenous sovereignty and their territories, where many of the resources are extracted from by multinational corporations (MNCs) particularly oil, the number one commodity of the world and cause of climate change, continue to be jeopardized because of the lack of a clear international legal framework that can protect them and potentially hold multinationals accountable for their actions. These practices are causing not only environmental issues to the indigenous and surrounding communities, but climate change is in fact, the real human rights issue of the 21^st century and it affects everyone. By using …

The German Army At A Crossroads Of Modernization, Sarah E. Liebig

Master's Theses

This thesis examines the German civil-military relationship and the challenges the country is facing amidst modernizing reforms to the German armed forces. Over the last quarter of a century, new international security threats have manifested and continue to transform requiring Germany to adapt its military and defense policies in order to effectively protect itself and serve as a capable ally to other member states of international organizations such as NATO and the EU. The adaptations and reforms required of Germany have led to concern that the cornerstone civil-military relationship concepts are at risk. In this thesis I identify the major …

Modeling And Analysis Of A Steel Truss Railroad Bridge Traversed By Trains At Various Speeds, Surendra Baniya Mr.

Master's Theses

The dynamic analysis of a truss railroad bridge under a moving train is very complicated. The simplified model where an entire bridge is represented by a single beam of equivalent stiffness could be suitable to analyze a girder bridge, but is not adequate to analyze accurately truss bridges, which inherently consist of numerous structural components. Moreover, due to the repetitive nature of train loading on a railroad bridge, there is an excitation frequency as a function of speed associated with each moving train. If this loading (excitation) frequency coincides with the natural frequency of the bridge, the bridge response builds …

The Ecological Importance Of Brachiopods Versus Bivalves In The Paleozoic: Taphonomy, Biomass, And Energy Use, Shannon (Shin-Nan) Hsieh

Master's Theses

Brachiopods have commonly been considered more important than bivalves in Paleozoic ecosystems due to their greater global diversity and greater abundance in many fossil assemblages. New sampling-standardized diversity curves verify that brachiopods were more diverse than bivalves at the global level in the Paleozoic; they declined in the Permian-Triassic extinction, largely recovered, then faded away later in the Mesozoic. However, the subordinate ecological status of bivalves within local Paleozoic ecosystems has been challenged on two fronts. First, bivalve abundance may be underestimated due to preferential dissolution of aragonitic shells. Second, bivalve contribution to ecosystem function may be underestimated by abundance …

Adaptive Pi Control To Realize Sinusoidal Ripple Current Charging In Battery Charger Systems, Jen-Guey Chen

Master's Theses

This thesis proposes the adaptive PI gain control to regulate sinusoidal ripple current (SRC) in battery charger systems. The SRC charge method is suited for fast and efficient charging. Y.D Lee (2015) propose that SRC charge method can reduce the charging time, decrease the charging temperature and improve the charging efficiency by applying optimal frequency to charge the battery. In order to determine optimal frequency for charging, the swept frequency is required in SRC charge method. Therefore, in order to perform SRC charge approach, the battery charger systems have to be capable of handling swept frequency input and regulating high …

Europe’S Refugee Crisis: Assessing The Factors Preventing A Coordinated Eu Response, Ali Albassam

Master's Theses

In order to escape increasing political violence in the Middle East and Africa, many refugees are fleeing by sea to seek asylum in Europe. As a result, Europe has witnessed the highest influx of refugees since World War Two. European Union member states have scrambled for a solution, seemingly unable to form a collective response. The reemergence of nationalism amid the arrival of thousands of refugees not only clouds Europe’s moral compass, but also weakens the EU and its founding principles. In an effort to contribute to the protection of refugees and the EU and its values, this thesis aims …

Effect Of Electrical Stimulation On Muscle Recruitment As It Relates To Maximal Voluntary Contraction, Kelly Stratton

Master's Theses

Regeneration of complex muscle tissue, particularly at the interface between distinct tissue types such as muscle and tendon, remains an intricate and challenging issue. One approach recommended for regeneration is electrical stimulation (ES), which involves delivering an electrical pulse into the body to induce muscle contraction. Despite its well-documented effectiveness in both clinical rehabilitation and tissue engineering, little is known in terms of monitoring direct muscle response to stimulation. The recruitment mechanism for muscular contraction with stimulation is unclear, and to understand the muscle capabilities, it is necessary to filter out the electrical stimulation pulses from electromyographic (EMG) muscle activity, …

Transit Era Hartford: Using The Past To Plan The Future, Adam Polinski

Master's Theses

The past several decades have been accompanied by a growing concern regarding the viability of auto-centric planning as it relates to environmental, social, and economic sustainability. Research has shown that dense, multimodal urban development has many benefits over the sprawling land use patterns that are so common today. As there are few modern places that are free of automobile-oriented development, historic cities often act as great sources of this information. Unfortunately, it is difficult to fully explore and understand Pre-Automobile Era cities because of a lack of accessible data.

Through GIS digitization of maps of Hartford, Connecticut around 1920, it …

Density-Based Clustering Of High-Dimensional Dna Fingerprints For Library-Dependent Microbial Source Tracking, Eric Johnson

Master's Theses

As part of an ongoing multidisciplinary effort at California Polytechnic State University, biologists and computer scientists have developed a new Library-Dependent Microbial Source Tracking method for identifying the host animals causing fecal contamination in local water sources. The Cal Poly Library of Pyroprints (CPLOP) is a database which stores E. coli representations of fecal samples from known hosts acquired from a novel method developed by the biologists called Pyroprinting. The research group considers E. coli samples whose Pyroprints match above a certain threshold to be part of the same bacterial strain. If an environmental sample from an unknown host animal …

Regional Wine Reputation: How It Influences Trade And Consumer Purchasing Behavior, Joseph Bernard Ostrander

Master's Theses

ABSTRACT

Regional Wine Reputation: How It Influences Trade

and Consumer Purchasing Behavior

Joseph Bernard Ostrander

What are wine trade buyers and wine consumers willing to pay for a bottle of wine based on the reputation of the grape growing region apart from existing corporate branding reputation, variety popularity, or accolades from industry periodicals and celebrity wine critics? Results from a previous study discovered how attitudes about place-of-origin influenced consumer perceptions regarding the quality associated with the wines from that region. Related research also looked at how wine prices depended on the quality associated with a wine region’s reputation when linked …

The Interactive Effect Of Core Self-Evaluations And Perceived Organizational Support In Predicting Work Engagement, Martin Andres Araya

Master's Theses

Given that work engagement has been shown to be related to positive individual and organizational outcomes, researchers have examined factors that predict work engagement. Personal resources and job resources are two factors that previous research has found to predict work engagement. The purpose of this study was to examine core self-evaluations (personal resource) and their interaction with perceived organizational support (job resource) on predicting working engagement. A total of 155 participants in a variety of job industries participated in an online survey. The study examined the direct effect of core self-evaluations in predicting work engagement as well as the interaction …

"Living In The Confluence Of Two Eternities": The Impact Of Politicized Religion In Richmond, Virginia, 1845-1914, Timothy Allen Case

Master's Theses

This thesis analyzes the political nature of religion before, during, and after the Civil War in Richmond, Virginia, the capitol city of the Confederacy. I contend that the relationship between the state and the church, politics and faith, public space and sacred space was forever changed by the war and its origins. Sacred space and sacred actors became political space and political actors before the war in the debates over slavery, during the war in defense of the Confederacy, and continued in this role in its aftermath. Their faith in God and his providence for the South aided Southerners as …

Burrowing Owl (Athene Cunicularia) Diet And Abundance At A Stopover And Wintering Ground On Southeast Farallon Island, California, Sara Lee Chandler

Master's Theses

On the Farallon Islands the burrowing owl (Athene cunicularia) is a native migrant and predator of the non-native house mouse (Mus musculus) and the native ashy storm-petrel (Oceanodroma homochroa). Burrowing owl predation on the ashy storm-petrel is unnaturally exacerbated by the abundance of house mouse prey in the fall, which may encourage more owls to overwinter. When the cyclic mouse population crashes in winter, the owls prey upon storm-petrels, a species of conservation concern. In 2009, the U.S. Fish and Wildlife Service proposed eradication of the house mouse from the Farallon Islands in order to reduce owl predation on and …

Natural And Anthropogenic Disturbance In Mcmurdo Sound, Antarctica: Iceberg Scours, Human-Derived Pollutants, And Their Effects On Benthic Communities, Clint Alan Collins

Master's Theses

The purpose of this study was to explore the impact of icebergs on infaunal communities in McMurdo Sound, using cores taken from naturally occurring scours, experimental plots simulating iceberg disturbance, and undisturbed reference areas spanning a 24 year time period. Iceberg scours and experimental plots altered infaunal abundances, reduced diversity, and changed species compositions. Abundances were lower at inside scour locations, dominated by a suite of mobile crustaceans. Common sessile space-dominating species were higher at scour edges, suggesting that recolonization of scours occur inward from the edges. When compared to other samples from the McMurdo Sound exposed to varying degrees …