Digital Commons Network^™

A Climatological Study Of Drought In Southern Michigan, Rudy Bartels

Masters Theses

Drought has become a reoccurring phenomenon throughout many regions around the world. Significant drought conditions have beenobserved overthe pastfive decades in relation to economic, social, and agricultural impacts. In this study, Southern Michigan is investigated over the past 52 years from 1960-2012. The Standardized Precipitation Index (SPI) will be calculated over a 6-month timescale from monthly precipitations. Three variables including 500-mb heights, surface pressure maps, and sea surface temperatures, will be correlated with the SPI using sliding correlations and Pearson's R correlation to determine any relations between these variables and precipitation variations. We will further investigate the five driest, wettest, …

Vaccinia Virus Flll Mediated Expedition Of Tanapoxvirus Replication In Cell Culture, Yih Wen Goh

Masters Theses

Tanapoxvirus (TPV) produces large but slow-forming plaques as opposed to vaccinia virus (VACV) that forms similar large plaques but more rapidly. A number of genes were identified in VACV, inclucding FllL, A33R, A34R and A36R that contribute to the regulation of virus release and dissemination, and are particularly responsible for the induction of actin tails. Among them, TPV lacks homologs of the FllL and A36R genes. F11Lmediated inhibition of RhoA-mDia signaling was shown to enhance the microtubules dynamics and modulates the cortical actin that assisted in the release of progeny virus from infected cells. To understand the possible effects of …

Managing Dispersed Recreation In The Allegheny National Forest, Anne Santa Maria

Masters Theses

In the Allegheny National Forest, an unregulated dispersed camping policy has led to significant impacts to the natural environment. This study used data gathered from visitor surveys, interviews with managers, and environmental conditions of campsites to recommend management actions for campsites along seven roads in the National Forest. The seven road areas fell into two categories. Primitive recreation was more common in some areas and solitude was more highly valued by campers. Other areas had more frequent visitor use, motorized camping, and solitude was less important to campers. These factors influenced management recommendations, which include designing and constructing campsites to …

Design Of Hardware Accelerator For Fuzzy Automata Using Dynamic Partial Reconfiguration, Chinh K. Nguyen

Masters Theses

As embedded systems have become more complex and designers are required to develop new products faster while using fewer chips. FPGAs are a good choice because they offer flexibility to design on-chip devices as well as the embedded systems that are reprogrammable and reconfigurable. Today's tougher cost, higher performance, and lower power consumption requirements demand even more efficient design strategies. Dynamic partial reconfiguration (PR) is a good approach to meet these requirements because it extends the inherent flexibility of the FPGA by allowing partial regions of the FPGA to be dynamically reconfigured with new functionality while other applications are still …

Student Success And Service-Learning: Exploring The Relationship At A Two-Year Public Institution, Leah Renee Kicinski

Masters Theses

This exploratory study examines the relationship between service-learning and student success at a two-year community college in the urban Midwest. Students who participated in service-learning during the 2010-2011 academic year were identified by institutional research and planning (n=788); additionally, students completed a survey regarding service experiences and learning outcomes (n=280). The data suggest that student success appears to be related to service-learning; 76% of subjects who participated in service-learning met a success indicator compared to 62% of students who were enrolled 2011-2012. Additionally, students reported learning communication, critical thinking, diversity, interpersonal, and personal skills as a result of their participation.

Unreconciled Contradictions: Autonomy, Ideology, And The Possibility Of Progress In Tillie Olsen's "Tell Me A Riddle", Rachel Leigh Curtis

Masters Theses

Tillie Olsen's most piercing and poignant text, "Tell Me a Riddle," depicts inescapable circumstances as thwarting all avenues of meaningful pursuit for Eva, its aging protagonist. Throughout her work and philosophy, Olsen continually emphasized the power of external constraints, and in this lies her powerful legacy. Her texts outline tragic realities, drawing attention to those on the fringe of society. Regardless of successes and opportunities, she considered herself similarly stifled and downtrodden. In "Tell Me a Riddle," she framed Eva's plight in a way that resembles her own perception of herself, but despite her identification with Eva, her situation differed …

Microglia Respond To Both Permanent And Temporary Deaferentation In The Adult Zebrafish Olfactory Bulb, Amanda K. Mckenna

Masters Theses

The major goal of this study was to investigate a microglial response following deafferentation in the adult zebrafish, Danio rerio, olfactory bulb. Microglia were identified in the olfactory bulb using the 4c4 antibody and phagocytic-dependent labeling (DiA). Microglia responded to both methods of deafferentation namely, permanent (cautery) and temporary (Triton X- 100). On one and three days following both permanent and temporary deafferentation there was a significant increase in microglia in the treated olfactory bulb. At five and seven days after permanent and temporary deafferentation there was no longer a significant difference between the treated and untreated olfactory bulbs, …

Analytical Performance Evaluation Of Thermoelectric Modules Using Effective Material Properties, Sean Lwe Leslie Weera

Masters Theses

Designers often face the predicament of non-standardized forms of performance data provided by thermoelectric module manufacturers. Other than experimental means the only method to evaluate the performance of a product would be through analytical modeling using material properties that are usually undisclosed and unknown. This work studies the theoretical approach of obtaining such material properties using the maximum operating parameters reported by the manufacturers. These values are then analytically employed to evaluate the performances of these thermoelectric modules. Experimental means are also devised and carried out on these test samples to validate the integrity of the results. Three-way comparisons between …

Understanding Work Socialization: A Qualitative Study Of A Youth Employment Program, Katelyn S. Sandor

Masters Theses

Through early work experiences, often in part-time jobs, young people come to learn about the working world. This learning process is often considered a source of anticipatory socialization, or an experience that comes before real work and serves to socialize individuals into particular organizations and vocations. In contrast, this study seeks to understand how individuals are socialized into broader meanings of work through early, part-time work experiences by studying a Youth Employment Program (YEP) aimed at providing hands-on job opportunities for at-risk youth. Drawing upon in-depth interviews, I analyze what young people learned about work and how such learning occurred. …

Tunes, Textures, And Trends: The Transformation Of Johann Walther’S Geistliches Gesangbüchlein (1524, 1525, 1537, 1544, 1551), Emily Marie Solomon

Masters Theses

This thesis examines the contents of Geistliches Gesangbüchlein, a sixteenth-­‐‑ century German Lutheran hymnal by Johann Walther, published in five editions between 1524 and 1551, the contents of which were substantially augmented, particularly between the 1525 and 1537 editions. Specifically, this project focuses on the twelve hymns with multiple settings, one or more of which were published in the first two editions and replaced by one or more settings in the last three editions, while assessing the characteristics across the original and removed settings and noting discernable trends of revision employed by Walther. Observable revision trends include length increase …

Transport And Catabolism Of Inositol Isomers In Sinorhizobium Meliloti, Ee Leng Choong

Masters Theses

The nitrogen fixing symbiont of alfalfa, Sinorhizobium meliloti, is able to use inositols as the sole carbon source. In this thesis, the role of two genetic loci in S. meliloti was investigated; the first is involved in the transport of inositols and the second genetic locus is essential for the catabolism of D-chiro-inositol stereoisomers. The S. meliloti ibpA gene had been earlier described as playing a role in inositol transport, but this study identified the SMb20072 gene product, called IbpB, as a second periplasmic binding protein involved in inositol transport. A single ibpB mutant and a double …

Delayed Match-To-Sample In Preschool Children, Thomas Ratkos

Masters Theses

In delayed match-to-sample (DMTS) tasks, a sample stimulus is shown and then removed for some period of time before comparison stimuli are presented. Joint control theory (Lowenkron, 1984, 1988, 1991, 1998, 2006) explains correct selections on delayed match-to-sample tasks in terms of the joint control of behavior by the comparison stimulus and a repeated word or words originating from the sample stimulus. Eight children ages 3 to 6 were exposed to a DMTS task with visual stimuli using a 15s delay. During training, children were taught to name the stimulus cards and then repeat the name of the target stimulus …

Salmonid Habitat Restoration On The Chocolay River, Michigan, Ross J. Crawford

Masters Theses

This project seeks to improve salmonid habitat quality by improving riparian vegetation on the adjacent banks (from toe to terrace) on the Chocolay River in Michigan's Upper Peninsula. Quantities of large woody debris (LWD) were also analyzed to determine the heterogeneityof stream habitats, or channel roughness. Percentages of rock, gravel, sand, and silt were analyzed to determine spawning habitat quality. As the proportions of fines (

Design Of A Portable Fast Scan Cyclic Voltammetry System For Measuring Neurotransmitter Levels, Jayson Foster

Masters Theses

The goal of this project is to design, build, and validate a more economic portable Fast Scan Cyclic Voltammetry (FSCV) device to measure the concentration of neurotransmitters like dopamine. The device will allow educational demonstrations in classrooms and allow researchers to gather data without the financial burden of a full cost system. The device is created on a Printed Circuit Board (PCB) that interfaces with a standard computer through MATLAB. This allows data collected on the PCB to be accessible to the user to display and analyze at will, all while maintaining the system’s portability and low cost. The device …

A Quantitative Tool For Identifying The Epileptogenic Zone Using Network Connectivity Analysis, James Michael Gurisko

Masters Theses

Approximately one-third of patients diagnosed with focal epilepsy do not respond to medication and may be candidates for surgery to remove epileptogenic tissue known as the epileptogenic zone. A detailed pre-surgical evaluation is required and often includes invasive video electroencephalographic monitoring (IVEM) using intracranial surface and depth electrodes, and a camera. The resulting large pools of electrocorticorticographic (ECoG) data are manually analyzed by an expert epileptologist to determine epileptic events. The process is time consuming and prone to human error. This thesis investigates the use of measures to identify the causal relationship between ECoG signals during propagation of a seizure …

Comparing Methods For Full Body Inverse Dynamics Analysis Of A Standing Long Jump, Nathaniel Vlietstra

Masters Theses

The classic iterative Newton-Euler method for inverse dynamics applied to calculating net joint torques in biomechanics analysis has a number of drawbacks. Many sources of error including imprecision in video motion capture data measurements can lead to significant errors in calculated net joint torques. Adding ground reaction force data overconstrains the solution. This study examined the effectiveness of various inverse dynamics analysis methods on a full body analysis of the standing long jump motion. These methods included variations in which equations for segments from the linksegment model were removed to relieve over constraint. Also considered were analysis methods applying least …

Low Noise Nmos Imager Fabrication With A Study On The Effect Of Photodiode Shape On Dark Current, Steven Taylor

Masters Theses

The purpose of this project was to fabricate a low noise N-type Metal-Oxide- Semiconductor (NMOS) imager in the Grand Valley State University (GVSU) Cleanroom with a focus on reducing pixel dark current. Previous research suggests Photodiode (PD) shape affects dark current and charge transfer characteristics of the pixel. Five PD shapes were designed to determine an optimized pixel shape with respect to dark performance. PN junction PDs with the Three Transistor (3T) pixel architecture were found to be the most suitable for imager fabrication in the GVSU cleanroom. The integrated circuit layout of several 8x8 pixel arrays was designed to …

Acute Hyperbaric Oxygen Therapy Alters Vascular Reactivity Independent Of Atp, William Cole Waggener Iv

Masters Theses

Hyperbaric oxygen therapy (HBO), breathing 100 percent oxygen at greater than one atmosphere, has been prescribed for many different medical reasons. The mechanism for HBO, however, is not entirely understood. Adenosine triphosphate (ATP) is the main energy carrier molecule in the body and its production requires oxygen. By increasing the amount of oxygen carried by the blood, the amount of ATP could also increase. This possible mechanism for HBO was tested using the addition of exogenous ATP on approximately five millimeter wide rings of fresh porcine gut arteries. The vascular rings were attached to a force transducer which measured the …

The Relationship Between Maternal Child Feeding Practices And Child’S Bmi And Child’S Dietary Restraint In Mexican-American Families Of Grand Rapids, Mi., Larissa E. Fluegel

Masters Theses

Background. Research in Caucasian girls has shown a relationship between mother’s restrictive feeding practices and girls’ eating in absence of hunger and greater body mass index (BMI). Hispanic children disproportionately suffer from obesity, yet there are limited studies on this relationship.

Purpose. This study sought to examine the relationship between maternal feeding practices (MFP) and child BMI (BMI_ch); and to explore the effect of demographics and culture on the latter. The hypothesis that BMI_ch is positively correlated with dietary restriction and monitoring and negatively correlated with pressure to eat was tested.

Subjects. First or second-generation Mexican-American women …

A Southerner For The Union: Major General George Henry Thomas - A Brief Biographical Sketch And Analysis Of The Causes And Effects Of His Decision For The North, Miranda Becker

Masters Theses

The American Civil War was a conflict that set a country against itself, making enemies out of friends, severing familial bonds, and leaving a legacy that is evident to this day. There is no better illustration of this conflict than the life of Union Major General George Henry Thomas of the Western theater in Tennessee. When the Southern states seceded, each citizen had an important decision to make whether to side with the Union or the Confederacy. For some it seemed an easy conclusion, whether it meant staying loyal to their state or because they believed in the cause of …

Multi-Threaded Automatic Integration Using Openmp And Cuda, Rida Assaf

Masters Theses

Problems in many areas give rise to computationally expensive integrals that beg the need of efficient techniques to solve them, e.g., in computational finance for the modeling of cash flows; for the computation of Feynman loop integrals in high energy physics; and in stochastic geometry with applications to computer graphics.

We demonstrate feasible numerical approaches in the framework of the PARINT multivariate integration package. The parallel environment is provided by the cluster of the High Performance Computational Science (HPCS) laboratory, with 22 (16- or 32-core) nodes, NVIDIA GPUs, and Intel Xeon Phi coprocessors.

Monte Carlo integration is implemented in CUDA …

Investigation Of The Development Of Educational Ict Courses On Pre-Service Teachers’ Education Curricula, Sayuri Kojima

Masters Theses

Considering the 21^st - century children’s characteristics and needs, teachers need to realize the importance and necessity of educational technology integration, and understand how to use technology to facilitate student-centered instruction and achieve meaningful outcomes. Also, teacher education colleges need to provide pre-service teachers with practical activities using educational technologies prior to their teaching career. This will encourage new generation learners to learn with technology.

This study was conducted at a national university in Japan with 67 pre-service teacher participants. The five central research questions of this study were specifically focused assessing the course takers’ learning expectations in educational …

Electron Capture By Multiply Charged Ions From Molecular Targets, Justin Harris

Masters Theses

State-selective differential cross sections for single-electron capture processes in collisions of Ne^q+ (q=2, 3, 5) ions with H₂O and CO₂ have been studied experimentally at laboratory collisions energies between 45 and 250 eV, and at scattering angles between 0^o and 7:20^o by means of translational energy-gain spectroscopy technique. The translational energy spectra show that only a few final states are populated depending on the projectile's charge state, laboratory scattering angle, and the collision energy. In addition, these measurements show that the dominant reaction channels are due to non-dissociative electron capture into excited states of …

Impersonal Trust In Versus Dependence On Fda, Amanda C. Meyer

Masters Theses

This study emerged following an examination of the work by Susan Shapiro (1987) delineating the construct of impersonal trust, and Shapiro's analysis of trust was applied to an understanding of the impersonal trust relationship which Americans have with Food and Drug Administration (FDA). Few fields outside of organizational studies have undertaken efforts to operationalize impersonal trust and to distinguish it from other related constructs, so this exploratory study assessed whether variables associated with interpersonal trust as outlined by Meyer and Ward (2009) were also associated with impersonal trust in FDA. This study further examined whether measures of impersonal trust could …

Looking For Mr. Right Or Mr. Right-Now: A Content Analysis Of Gay Men’S Personals, Matt Reid

Masters Theses

Personal advertisements have long been valued by researchers for evaluating norms relating to love and romance in any given societal context. Using thematic, directed content analysis on ads placed on a popular online dating website, this exploratory study seeks to uncover the various ways by which gay and straight men craft an image of the ideal self.

Results largely diverge from previous studies, most of which were conducted prior to the advent of online dating and at a time in a society where homosexuality was more taboo. The current study found that gay men, more often than straight men, employ …

The Gender Of Participants In Published Research Involving People With Autism Spectrum Disorders, Erin Watkins

Masters Theses

Research articles involving participants with an autism spectrum disorder and published from 2010-2012 in Autism, Journal of Autism and Developmental Disorders, Journal of Child Psychology and Child Psychiatry, and Research in Autism Spectrum Disorders were examined to determine the reported gender of participants. The overall male:female ratio was 4.62, which is similar to that reported in epidemiological studies, but the ratio was 6.07 in intervention studies. These findings suggesting that males were in a statistical sense over-represented in intervention studies, but not in other kinds of research. Most (82.21%) of these studies included both male and female participants, but …

The Relationship Between Speaking Rate And Nasalance In Typical Adult Speakers, Rachel Whitney

Masters Theses

Nasometry is a non-invasive tool frequently used to measure speech resonance in clinical populations. The instrument uses an acoustic recording system to derive a measure termed nasalance, which is an estimate of the relative amount of acoustic energy emitted from the nasal cavity. Nasometry protocols do not provide detailed instructions for speaking rate control during data collection. Studies attempting to establish a relationship between speaking rate and nasalance have yielded mixed results; therefore, it is important to identify the influence of speaking rate on nasalance in a variety of speaking tasks. If rate is found to influence nasalance values, protocols …

Piles Of Salt: A Narrative Of Civil War, Refugeeism, And Sociopolitical Transnationalism, Patrice M. Niltasuwan

Masters Theses

Employing oral history methodology, this research project was presented in the form of a biography. The focus was a humanistic approach to understanding the effects of civil war tlirough a first-person account of the lived experience. Through examination of the life history narrative of an immigrant refugee who survived the Laotian Civil War, the war itself is explored from a personal perspective as well as other issues relevant to refugeeism and immigration in America including policy, citizenship, identity, family, acculturation, and transnationalism.

By personalizing war through the voice of one who experienced it, a new perspective arises; not only are …

In Their Own Words: Healing From Traumatic Childbirth, Jennifer L. Brammer

Masters Theses

Trauma related to childbirth is seldom addressed despite the incidence of women who experience traumatic births. Birth trauma, like other traumatic events, can have a lasting impact on women and can effect their attachment to their infants. This study gives voice to women's birth trauma and describes what women find helpful in their healing processes from traumatic birth. This study is based on the narratives of 14 women who graciously shared their birth stories and healing journeys in semi-structured qualitative interviews. Their traumatic birth experiences occurred 3 ½ to 26 years ago.

A post-positivist approach and narrative theory informed this …

Facing The Idea That Facebook Faces Us Towards Narcissism, Adam Forsberg

Masters Theses

Since its creation in 2004, Facebook has experienced tremendous growth and success, allowing users to communicate and share their life with people all over the world. Facebook is used to share information with others and allows users to show their friends what is happening in their lives. Erving Goffman developed face management theory as a way to explain how and why people preserve and maintain their public self image. This study applies Goffmans theory of face management to develop an understanding of how Facebook is used and specifically whether Facebook use influences narcissistic tendencies in its users. The researcher surveyed …