Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 30 of 346

Full-Text Articles in Entire DC Network

A Markov Model For Baseball With Applications, Daniel Joseph Ursin Dec 2014

A Markov Model For Baseball With Applications, Daniel Joseph Ursin

Theses and Dissertations

In this work we confirm a Markov chain model of baseball for 2013 Major League Baseball batting data. We describe the transition matrices for individual player data and their use in generating single and nine-inning run distributions for a given lineup. The run distribution is used to calculate the expected number of runs produced by a lineup over nine innings. We discuss batting order optimization heuristics to avoid computation of distributions for the 9! = 362, 880 distinct lineups for 9 players. Finally, we describe an implementation of the algorithms and review their performance against actual game data.


Biomechanical Joint Demands And Functional Outcomes During Manual Wheelchair Use In Pediatric Patients With Spinal Cord Injury, Christine M. Aurit Dec 2014

Biomechanical Joint Demands And Functional Outcomes During Manual Wheelchair Use In Pediatric Patients With Spinal Cord Injury, Christine M. Aurit

Theses and Dissertations

The biomechanical demands of the upper extremities (UEs) during pediatric manual wheelchair (MWC) use have not been fully explored. Children who use MWCs for mobility engage in a range of functional activities that may place large biomechanical demands on the UEs leading to a high risk on overuse injuries. This study aims to analyze the kinematics and kinetics of pediatric manual wheelchair use during propulsion, starting, stopping and weight relief tasks. Fourteen pediatric patients with spinal cord injury were recruited and data were collected using a 14-camera Vicon MX motion analysis system (Oxford Metric Group, Oxford, UK) and a SmartWheel …


Mechanical Properties Of Glass Fiber Reinforced Polymer Bars After Exposure To Elevated Temperatures, Mohammed Abdulqader Jalil Alsalihi Dec 2014

Mechanical Properties Of Glass Fiber Reinforced Polymer Bars After Exposure To Elevated Temperatures, Mohammed Abdulqader Jalil Alsalihi

Theses and Dissertations

ABSTRACT

MECHANICAL PROPERTIES OF GLASS FIBER REINFORCED POLYMER BARS AFTER EXPOSURE TO ELEVATED TEMPERATURES

by

Mohammed A. J. Alsalihi

The University of Wisconsin-Milwaukee, 2014

Under the Supervision of Professor Habib Tabatabai

In the past few decades, the use of composite materials has become more widespread in different fields and industries. Part of this increase comes as an answer to the corrosion issues that ordinary steel faces. Fiber Reinforced Polymers (FRP)s offer a number of advantages that make them an adequate solution to challenges in the rapidly developing construction industry. However, the behaviors of these materials at elevated temperatures and their …


An Optogenetic Brain-Machine Interface For Spatiotemporal Neuromodulation, Ryan Andrew Baumgartner Dec 2014

An Optogenetic Brain-Machine Interface For Spatiotemporal Neuromodulation, Ryan Andrew Baumgartner

Theses and Dissertations

Direct neural stimulation has recently become a standard therapy for neurological disorders such as Parkinson's Disease, Essential Tremors, and Dystonia. Currently, deep brain electro-stimulation and neuro-pharmaceutical treatments are the dominant therapeutic options available to the public. As our understanding of brain function and neurological diseases improves, we are able to develop more advanced neuromodulation techniques. These methods could become viable treatment solutions for treating brain dysfunction. Optogenetics, first introduced by a research team led by Karl Deisseroth at Stanford University, has proved to be a versatile technique with remarkable potential to be used in treatments for brain disorders, dysfunction, and …


Improving Mri Surface Coil Decoupling To Reduce B1 Distortion, Christian K. Larson Dec 2014

Improving Mri Surface Coil Decoupling To Reduce B1 Distortion, Christian K. Larson

Theses and Dissertations

As clinical MRI systems continue to advance, larger focus is being given to image

uniformity. Good image uniformity begins with generating uniform magnetic fields, which

are easily distorted by induced currents on receive-only surface coils. It has become an

industry standard to combat these induced currents by placing RF blocking networks on

surface coils. This paper explores the effect of blocking network impedance of phased array surface coils on B1 distortion. It has been found and verified, that traditional approaches for blocking network design in complex phased arrays can leave undesirable B1 distortions at 3 Tesla. The traditional approach of …


Use Of Secure Messaging By United States Veterans And Significant Others, Claudia S. Derman Dec 2014

Use Of Secure Messaging By United States Veterans And Significant Others, Claudia S. Derman

Theses and Dissertations

ABSTRACT

USE OF SECURE MESSAGING BY UNITED STATES VETERANS AND SIGNIFICANT OTHERS

By

Claudia S. Derman

The University of Wisconsin-Milwaukee, 2014

Under the Supervision of Professor Karen H. Morin, PhD, RN, ANEF, FAAN

The purpose of this study was to describe the topics discussed using secure messaging (SM), the pattern of use of SM, and whether the themes discussed and/or the pattern of use varied based on gender and age of the SM user. Secure messaging is an example of a technology that focuses on patient-centered communication. Secure messaging allows patients to communicate with their clinicians using the Internet and …


Phosphorus Recycling By Profunda Quagga Mussels In Lake Michigan, Caroline Mosley Dec 2014

Phosphorus Recycling By Profunda Quagga Mussels In Lake Michigan, Caroline Mosley

Theses and Dissertations

Quagga mussels (Dreissena rostiformis bugensis) act as ecosystem engineers in the southern basin of Lake Michigan, altering physical habitats and biogeochemical processes. Adapted to cold and oligotrophic conditions, profunda quagga mussels thrive on the soft substrate of deeper depths. At a 55 m site (10,000 mussels m-2) offshore from Milwaukee, WI, profunda mussel biomass (g m-2) was 1/3 of biomass (g m-2) measured at a 10 m comparison site (5,000 mussels m-2). Higher densities but less biomass is due to profunda mussels having less tissue for a given length and the population per m2 comprising of mostly small mussels ( …


Exploring The Phenomenon Of Presence In An Online Educational Environment Through The Lived Experiences Of Graduate Nursing Faculty, John G. Rosselli Dec 2014

Exploring The Phenomenon Of Presence In An Online Educational Environment Through The Lived Experiences Of Graduate Nursing Faculty, John G. Rosselli

Theses and Dissertations

In this dissertation, the phenomenon of presence in an online educational environment is explored through the lived experiences of graduate nursing faculty who teach online.

Greater understanding of the phenomenon of presence in online educational environments may lead to better learner-instructor relationships, higher levels of inquiry and critical thinking on the part of faculty and students, and ultimately better student outcomes. Utilizing principles of Hermeneutic Phenomenology and deductive inquiry, and based on the learner-centric Being There for the Online Learner Model, the author conducted in-depth interviews with a purposive sample of 13 graduate nursing faculty members who teach online at …


Impact Of Gestational Exposure To 2,3,7,8-Tetrachlorodibenzo-P-Dioxin On T Lymphocyte Development, Lori S. Ahrenhoerster Dec 2014

Impact Of Gestational Exposure To 2,3,7,8-Tetrachlorodibenzo-P-Dioxin On T Lymphocyte Development, Lori S. Ahrenhoerster

Theses and Dissertations

2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) is a ubiquitous environmental contaminant and the best characterized agonist of the arylhydrocarbon receptor (AHR), a transcription factor crucial to the detoxification of numerous xenobiotics. Studies in animals show that TCDD is immunosuppressive in adult exposures, and epidemiological studies have found an association between TCDD exposure and hematologic cancers. Additionally, developmental exposure to TCDD has been shown to increase the likelihood of autoimmunity and to impair immune response to later-life infections. The cells of the immune system are all descended from multipotent hematopoietic stem cells (HSCs) that originate in the fetus. This multipotency, defined as the ability to …


Creating Neighborhood In Postwar Buffalo, New York: Transformations Of The West Side, 1950-1980, Caitlin Boyle Moriarty Dec 2014

Creating Neighborhood In Postwar Buffalo, New York: Transformations Of The West Side, 1950-1980, Caitlin Boyle Moriarty

Theses and Dissertations

This project reconsiders post-World War II neighborhood change by examining how various groups in Buffalo, New York conceptualized, experienced and produced the West Side as a cultural and economic artifact between 1950 and 1980. This approach offers an alternative to conceptualizing neighborhoods as bounded, natural entities and it encourages narratives that complicate the prevailing metaphor of decline in rust belt cities by illuminating other components of postwar neighborhood change than population loss and economic disinvestment. This project uses neighborhood retail as a lens through which to examine how city planners, the West Side Business Men's Club, the Federation of Italian …


"Tales" Of Text And Culture: Tropes Of Imperialism, Women's Roles, Technologies Of Representation, And Collaborative Meaning-Making In Rita Golden Gelman's Tales Of A Female Nomad, Female Nomad And Friends, And Personal Website, Michelle Lynne Van Wert Kosalka Dec 2014

"Tales" Of Text And Culture: Tropes Of Imperialism, Women's Roles, Technologies Of Representation, And Collaborative Meaning-Making In Rita Golden Gelman's Tales Of A Female Nomad, Female Nomad And Friends, And Personal Website, Michelle Lynne Van Wert Kosalka

Theses and Dissertations

This dissertation examines contemporary travel writing specifically created for a popular reading culture, Rita Golden Gelman's Tales of a Female Nomad, Female Nomad and Friends, and personal website. The project is concerned with how culture is continuously represented and shaped through the dialogic interaction between writer and reader, and the subsequent liminal spaces which emerge in moments of meaning-making. Chapter 1 is a close reading of how Gelman's works reinforce and, in some cases, resist, tropes of imperialism. Chapter 2 examines patriarchal gender roles in Gelman's works and the ways in which recent advances in feminist psychiatry and psychology can …


On The Nonlinear Tribological Jerk Dynamics At Sliding Interfaces, Divyeshkumar Patel Dec 2014

On The Nonlinear Tribological Jerk Dynamics At Sliding Interfaces, Divyeshkumar Patel

Theses and Dissertations

As the world desires the next industrial revolution, the potential threats that will undermine energy efficient innovations include detrimental frictional effects that exacerbate wear, hasten equipment breakdowns, and worsen heat dissipation. Capturing the inherently nonlinear manifestations of friction fundamentally has been difficult. A fundamental modeling scheme elucidating friction will bolster novel technologies synthesizing wear resistant materials and lubricants needed for sustainable energy efficiency.

Frictional dissipation at dynamical sliding interfaces has been studied for generations. Interfacial sliding frictional effects are prevalent in natural and artificial phenomena such as earthquake, hip and knee joints, and the moving parts of energy-producing and energy-consuming …


Alcohol Use Disorders And An Fmri Stress Task: A Connectivity Analysis, Natasha E. Wright Dec 2014

Alcohol Use Disorders And An Fmri Stress Task: A Connectivity Analysis, Natasha E. Wright

Theses and Dissertations

Little research has been conducted on neuronal stress processing in individuals

with alcohol dependence (AD). The present study examined neural stress response in AD individuals compared to controls using an fMRI stress task, assessing amygdala

activation and its connectivity to the medial prefrontal cortex (mPFC). Further, the study

analyzed the impact of hormone levels and subjective stress on frontal-limbic

connectivity patterns.

Ten abstinent AD individuals and 11 controls were recruited. Subjects

participated in an fMRI stress task. A region of interest (amygdala) analysis was

conducted using area-under-the-curve. This activation was then examined in a whole brain functional connectivity analysis. Follow-up …


Teaching Discriminated Social Approaches To Individuals With Angelman Syndrome, Caitlin Shea Fichtner Dec 2014

Teaching Discriminated Social Approaches To Individuals With Angelman Syndrome, Caitlin Shea Fichtner

Theses and Dissertations

Angelman syndrome is a neuro-genetic disorder characterized by intellectual and developmental disability. Common behavioral characteristics of this disorder include a heightened interest in social interactions and frequent bids to initiate interaction. These bids can be problematic, for instance when a child attempts to hug strangers in public places. The purpose of the current study was to evaluate a discrimination training program to teach appropriate from inappropriate times to initiate a social interaction with three males diagnosed with Angelman Syndrome whose caregivers reported frequent hugging or hand holding as a problem. During a baseline, we alternated periods in which attention was …


Api Usage Verification Through Dataflow Analysis, Kenneth Baptiste Tapsoba Dec 2014

Api Usage Verification Through Dataflow Analysis, Kenneth Baptiste Tapsoba

Theses and Dissertations

Using APIs in a program is often difficult because of the incomplete documentation and the shortage of available examples. To cope with that, we have seen the increase of API checking tools that provide efficient suggestions for API usage. However, most of those checking tools use a pattern-based analysis to determine errors such as misuse of API calls. In this thesis, we introduce a different analysis technique that relies on explicit API state transitions for the analysis of the program. We adopt a static dataflow analysis framework from SOOT to inspect state transitions at each program point.


Public Perceptions Of Anorexia Nervosa, Katherine Karas Dec 2014

Public Perceptions Of Anorexia Nervosa, Katherine Karas

Theses and Dissertations

Despite the severe impact of anorexia nervosa if left untreated, it has been estimated that only roughly 10% of those meeting diagnostic criteria for anorexia nervosa ever seek out effective treatment. The most cited potential barrier to treatment seeking for general mental health issues is an individual's fear of stigmatization (Corrigan, 2004), but this has never having been examined specifically for anorexia nervosa, In order to further the understanding as to how stigmatization may affect treatment seeking for individuals with anorexia nervosa, it is first necessary to establish the currently held stereotypes for anorexia nervosa. It is the goal of …


An Analysis Of Co2-Driven Cold-Water Geysers In Green River, Utah And Chimayo, New Mexico, Zachary T. Watson Dec 2014

An Analysis Of Co2-Driven Cold-Water Geysers In Green River, Utah And Chimayo, New Mexico, Zachary T. Watson

Theses and Dissertations

The eruption periodicity, CO2 bubble volume fraction, eruption velocity, flash depth and mass emission of CO2 were determined from multiple wellbore CO2-driven cold-water geysers (Crystal and Tenmile geysers, in Utah and Chimayó geyser in New Mexico). Utilizing a suite of temporal water sample datasets from multiple field trips to Crystal geyser, systematic and repeated trends in effluent water chemistry have been revealed. Crystal geyser has a four part eruption cycle composed of a minor eruption period (mEP), major eruption period (MEP), aftershock eruption period (Ae) and recharge (R). Tenmile geyser has a four part eruption cycle composed of MEP, drainage …


Predicting Outcome At Posttreatment For Adolescent Obsessive-Compulsive Disorder In A Residential Treatment Setting, Heather M. Jones Dec 2014

Predicting Outcome At Posttreatment For Adolescent Obsessive-Compulsive Disorder In A Residential Treatment Setting, Heather M. Jones

Theses and Dissertations

Exposure and response prevention (ERP) paired with psychopharmacological interventions are considered first line treatments for pediatric obsessive compulsive disorder (OCD). Recent literature has emphasized the importance of investigating effectiveness and treatment outcomes for difficult-to-treat cases of pediatric OCD who do not respond to outpatient treatment. Effectiveness studies have found that adolescent patients treated in residential settings have demonstrated gains comparable to those patients included in published outpatient outcomes studies (Bjorgvinsson et al., 2008; Leonard et al., 2014). Current research efforts are needed to 1) better predict gains in real-world clinical settings and 2) identify risk factors for difficult-to-treat patients who …


Spatial Dimensions Of Tower Karst And Cockpit Karst: A Case Study Of Guilin, China, Wei Huang Dec 2014

Spatial Dimensions Of Tower Karst And Cockpit Karst: A Case Study Of Guilin, China, Wei Huang

Theses and Dissertations

Tower karst (fenglin) and cockpit karst (fengcong) are two globally important representative styles of tropical karst. Previously proposed sequential and parallel development models are preliminary, and geomorphological studies to date do not provide enough satisfactory evidence to delineate the spatial and temporal relation between the two landscapes. This unclear interpretation of tower-cockpit relationships not only obscures understanding of the process-form dynamics of these tropical karst landforms, but also confuses their definition. Moreover, previous technological limitations, as well as the fragmental nature of the karst landscapes, has limited incorporation of geologic and other data into broad geospatial frameworks based on geographic …


Caring And Cleaning "On Par": The Work Of Au Pairs & Housecleaners In The Chicagoland Area, Anna Kuroczycka Schultes Dec 2014

Caring And Cleaning "On Par": The Work Of Au Pairs & Housecleaners In The Chicagoland Area, Anna Kuroczycka Schultes

Theses and Dissertations

Immigrant domestic workers are perceived as highly exploitable and expendable employees, yet they are entangled in a very complex global exchange of services. The main purpose of this study will be to revise existing knowledge and assumptions about the female migrant service sector, especially within the field of domestic and care labor, by comparing the work of au pairs with housecleaners. Although these two forms of work appear to have many similarities on the surface, they are actually at opposite ends of the spectrum in terms of visibility and regulation. Unlike the highly regulated nature of au pair work and …


Framing The Policy Debate: Competing Portrayals Of Technology In Online Content Regulation And Lessons From Science And Technology Studies, Jeremy John Mauger Dec 2014

Framing The Policy Debate: Competing Portrayals Of Technology In Online Content Regulation And Lessons From Science And Technology Studies, Jeremy John Mauger

Theses and Dissertations

In an effort to control access to certain online content, the U.S. Congress has repeatedly mandated the use of powerful regulatory technologies such as Domain Name System blocking, Internet Service Provider filtering, age verification systems, and commercial filtering software. The application of these enforcement mechanisms may have serious implications for constitutional rights, individual freedom, and autonomy. This research will show that policies including the Communications Decency Act, the Child Online Protection Act, the Children's Internet Protection Act, the Stop Online Piracy Act, and the PROTECT Intellectual Property Act all have the potential to negatively impact these rights. Although the motivations …


Novel Protein Secretion And Chitin Utilization Machinery Of Flavobacterium Johnsoniae, Sampada Suresh Kharade Dec 2014

Novel Protein Secretion And Chitin Utilization Machinery Of Flavobacterium Johnsoniae, Sampada Suresh Kharade

Theses and Dissertations

Flavobacterium johnsoniae, a member of phylum Bacteroidetes, is a gliding bacterium that digests insoluble chitin. A novel protein secretion system, the Type IX secretion system (T9SS), secretes the motility adhesins SprB and RemA and is also required for chitin utilization. In order to understand F. johnsoniae chitin utilization and the role of the T9SS, Fjoh_4555 (chiA) was targeted for analysis. Disruption of chiA resulted in cells that failed to digest chitin and complementation restored this ability. Antisera raised against ChiA were used to characterize its secretion. ChiA was secreted in soluble form by wild-type cells but remained cell-associated in T9SS …


A Novel Transport Based Model For Wire Media And Its Application To Scattering Problems, Ebrahim Forati Dec 2014

A Novel Transport Based Model For Wire Media And Its Application To Scattering Problems, Ebrahim Forati

Theses and Dissertations

Artificially engineered materials, known as metamaterials, have attracted the interest of researchers because of the potential for novel applications. Effective modeling of metamaterials is a crucial step for analyzing and synthesizing devices. In this thesis, we focus on wire medium (both isotropic and uniaxial) and validate a novel transport based model for them.

Scattering problems involving wire media are computationally intensive due to the spatially dispersive nature of homogenized wire media. However, it will be shown that using the new model to solve scattering problems can simplify the calculations a great deal.

For scattering problems, an integro-differential equation based on …


Transgender College Student Activists: The Intersections Of Identities, Les Tyler Johnson Dec 2014

Transgender College Student Activists: The Intersections Of Identities, Les Tyler Johnson

Theses and Dissertations

Transgender students, sometimes motivated by their experiences of marginalization, other times driven to bring meaning to their lives, participate in activism on their college campuses in efforts to enact social change. This qualitative study sought to learn how transgender college students describe the intersection between their gender and activist identities, and the role other identities play at the intersection. Situated in the theoretical framework of intersectionality, I used data from interviews to construct narratives where participants describe the place where their identities meet. Learning more about the intersection of transgender students' gender and activist identities is significant to inform the …


Impact Of Monetary Uncertainty And Economic Uncertainty On Money Demand In Africa, Alice Kones Dec 2014

Impact Of Monetary Uncertainty And Economic Uncertainty On Money Demand In Africa, Alice Kones

Theses and Dissertations

This dissertation investigates the role that economic uncertainties and monetary uncertainties play in the money demand function for 21 African countries. The Auto-regressive Distributive Lag (ARDL) and F-test approach are employed using quarterly time series data covering the period from 1971I-2012IV. In particular, this paper aims to demonstrate both short and long-run relationships between the dependent variables, Real Money Aggregate (M2), and the independent variables that include real income (Y), inflation rate nominal effective exchange rate (NEX), output uncertainty (VY), and monetary uncertainty (VM). We apply GARCH methodology to approximate the uncertainty measures. The empirical results show that except for …


Evaluation And Forecast Of Energy Consumption In Different Sectors Of The United States Using Artificial Neural Networks, Arash Kialashaki Dec 2014

Evaluation And Forecast Of Energy Consumption In Different Sectors Of The United States Using Artificial Neural Networks, Arash Kialashaki

Theses and Dissertations

The United States is a country which consumes a vast amount of energy. In order to keep the development of the United States sustainable (diverse and productive over the time) energy planning should be carried out comprehensively and precisely. This dissertation presents a specific mathematical modeling approach towards energy demand modeling of the United States and forecast future energy demand. To generate more detailed and accurate results, this dissertation investigates the energy demand of each sector separately using the analysis of trend for unique set of independent parameters which affect the energy demand in that sector.

In solving a forecast …


Reward Distracters And Working Memory Performance, Tara Ann Miskovich Dec 2014

Reward Distracters And Working Memory Performance, Tara Ann Miskovich

Theses and Dissertations

Past literature has demonstrated that reward stimuli capture attention involuntarily, much like salient stimuli or other emotional stimuli (e.g., threat). In addition, even previously rewarded stimuli capture attention when they are not task-relevant. Recent evidence has demonstrated that affective stimuli have preferential access to working memory stores, even when they are task-irrelevant distracters. The current study aimed to assess the potential impact of attentional capture of task-irrelevant reward stimuli on filtering efficiency into working memory. It was predicted that this attentional capture of stimuli representing reward may impact ongoing goal-directed behavior by impairing the encoding of task-relevant information into working …


Dissecting The Impact Of Dif/Dbf On Ability Estimation And Person Fit, Kevin Cappaert Dec 2014

Dissecting The Impact Of Dif/Dbf On Ability Estimation And Person Fit, Kevin Cappaert

Theses and Dissertations

Prior research has shown that differential item functioning (DIF) and differential bundle functioning (DBF) can influence ability estimation in unidimensional item repose theory (IRT); however, the relationship between ability estimation and uniform and non-uniform DIF/DBF has not been thoroughly investigated. Therefore, a simulation study was conducted to more thoroughly investigate how DIF/DBF and other related factors influence ability estimation in IRT. The factors examined included bundle size, the sum of uniform DIF in a bundle, magnitude of non-uniform DIF in each item in a bundle, balance of reference and focal group examinees, test length, and impact. Results indicated that an …


The Effects Of A Selected Wheel Design And Caster Fixture Design On Pushing Force When Pushing Four Wheeled Industrial Carts, David Wein Dec 2014

The Effects Of A Selected Wheel Design And Caster Fixture Design On Pushing Force When Pushing Four Wheeled Industrial Carts, David Wein

Theses and Dissertations

Manual material handlings tasks, many of which require pushing and pulling are common in almost all industrial and service sector environments. These tasks expose workers to musculoskeletal stresses as well as other related slipping and tripping hazards. The company sponsor of this study sought to lower the risk of injury from manually pushing and pulling carts. The company wanted to evaluate a newer style of split wheel and also an offset pivot dual orbital caster, which the manufacturer states will reduce pushing and pulling force. A total of eight participants (4 male, 4 female) were included in the study. Participants …


Cellular Zinc Trafficking: The Zinc Proteome And Its Reactions With Cadmium, Mohammad Ali Namdarghanbari Dec 2014

Cellular Zinc Trafficking: The Zinc Proteome And Its Reactions With Cadmium, Mohammad Ali Namdarghanbari

Theses and Dissertations

Metals play a crucial role in living systems. Iron, zinc, copper, molybdenum, and manganese are involved in many essential biological activities. Among transition metals, zinc after iron is the most abundant transition metal in the human body and the most abundant in the brain. It exists in more than 3000 proteins, which comprise about 10% of the human proteome. Zn2+ dyshomeostasis is associated with chronic diseases such as metabolic syndrome, diabetes and related complications, bone loss, growth retardation in young children, and neurological and behavioral problems. Despite a good knowledge obtained for metabolism of some metal ions such as copper, …