Digital Commons Network^™

Synthesis And Study Of Stimuli-Responsive Fluorescent Polymeric Thin Films For Early Corrosion Detection By Directly Monitoring Iron Dissolution From Steel Substrates, Kevin William Harman

Master's Theses

The successful measurement and prediction of material lifetimes is of high importance for proper maintenance on metal infrastructures for prevention of asset loss through corrosive processes. Current testing protocols include mismatched accelerated weathering techniques in combination with visual corrosion detection that consume substantial amounts of time and resources and often lead to inaccurate extrapolation to natural conditions. For corrosion science and engineering to evolve further, accurate and early detection methods of efficiently evaluating materials are necessary. Fluorescence spectroscopy is one established non-destructive analytical technique that is highly sensitive and selective to a variety of metal ion species and chemical environments …

Adsorption/Desorption Process Of Stimuli-Responsive Polymers On Simulated Natural Surfaces Using Qcm-D & Afm Analysis, Yan Zong

Master's Theses

The stimuli-responsive adsorption of polyelectrolytes to biosurfaces provides an important vehicle for development of protective coatings, delivery of therapeutic agents, and cosmetic applications. Developing a fundamental understanding of the mechanisms and kinetics of adsorption/desorption processes of polymeric systems to biological surfaces is of critical importance in predicting performance and designing new formulations. This study describes quartz crystal microbalance and atomic force microscopy analysis of a poly(methyl vinyl ether-alt-maleic anhydride) copolymer (Gantrez® S97 BF) adsorption on dental mimicking surfaces to determine properties including thickness, morphology, viscoelasticy, and rate of adsorption/desorption of the polymer layer as a function of solution environment. A …

Renewable Ocean Energy Site Selection Using A Gis: Gulf Coast Potential, Thomas Paul Wissing

Master's Theses

Development of offshore renewable wind energy for coastal states, counties and federally owned regions must account for numerous constraints and factors. In the northern Gulf of Mexico, decisions on developing sites for renewable wind energy have traditionally stemmed from environmental, socioeconomic, and political bases. Environmentally, new renewable off-shore projects cannot infringe on wetlands, marine sanctuaries, and fragile ecosystems (EFH). Placement of an offshore wind turbine should not significantly impact the surrounding environment. Taking into account maritime concerns, shipping lanes must not be impeded, and active military fly zones must be avoided.

Offshore projects must be financially self-sustaining for states and …

Maladaptive Personality Traits And Sex Addiction Profiles, Jonathan Knute Jore

Master's Theses

How do pathological personality traits relate to specific expressions of compulsive sexual behaviors? Previous studies have concluded that there are only small relationships between these two constructs, but such studies have usually conceptualized sexual compulsion as a unidimensional construct. The current study used a correlational design to evaluate the relationship between pathological personality traits and six general domains of sexually compulsive behaviors and cognitions in an inpatient and outpatient clinical sample (N = 540) of males seeking treatment for sex addiction. The pathological personality trait results were assessed using the MMPI-2 Psychopathology Five (PSY-5) domain and facet traits. The sexually …

Stimulant Use, Associated Psychopathology, And Eating Disordered Symptomatology, Tiffany Ann Hopkins

Master's Theses

The current study developed profiles of eating disorder, personality, and other psychopathological symptoms related to the use of central nervous system stimulants versus other types of drug use. Participants included 124 women in residential treatment for substance use with and without comorbid eating disorders. Symptomatology was measured by the Eating Disorders lnventory-3 (EDI-3), Millon Multiaxial Inventory-III (MCMI-III), and Personality Assessment Inventory (PAl). The current study utilized a series of six multivariate analyses of variance (MANOVAs) and discriminant analyses to determine patterns of psychopathology separating stimulant use from other drug use. Results indicated that women who used stimulants were primarily separated …

Legislated Landscape: A Comparison Of New Deal Farm Communities In Hattiesburg, Mccomb, And Tupelo, Mississippi, Joy Delaine Rhoads

Master's Theses

Government New Deal farm policies of the 1930s changed the realities of farming and the landscape in Mississippi. This research endeavors to compare three farm communities created by New Deal legislation in the state: Hattiesburg, McComb, and Tupelo. The economic crisis that was the Great Depression created a highly politicized environment as citizens looked to the government for economic relief. A crisis this severe would require an exceptional effort to mitigate the economic hardships it created, in varying degrees, for millions of Americans. The actions of the federal government during the Great Depression were an interesting mix of paternalism, desperation, …

Anticipated Life Role Salience And Career Decision-Making Difficulties, Emily A. Schedin

Master's Theses

With the dual-earner population increasingly becoming the norm, undergraduate students are forced to consider the ways in which their career choice may affect their future family life, as well as how their family life may affect their career. Research has shown that undergraduate students may alter their vocational aspirations or adjust their future family plans to avoid work-family role conflict thus implying that students are making career decisions based on their prioritization of anticipated future life roles. The present study sought to investigate how the salience of different life roles may factor into the level of career decision-making difficulty (CDMD) …

Sensitivity And Species Specificity Of Bisulfite Modification And Pyrosequencing Technology Used To Identify Tissue-Specific Dna Methylation Patterns In Common Biofluids Foudn In Crime Scenes, Sitara Christian Shirwani

Master's Theses

In order to convict the guilty or exonerate the innocent in criminal cases, it is crucial to reconstruct the crime scene and/or determine the nature of the crime. Identifying the different biofluids found at a crime scene can help shed light on these aspects of forensic casework. Recently, DNA methylation has been used as a means of identifying biological materials, as opposed to conventional protein/enzyme based methods. DNA methylation is the addition of a methyl group to the 5' carbon on a cytosine base (C), which is directly followed by a guanine base (G) and are called CpG sites. The …

An Investigation Of The Relationship Between Measures Of Service Quality And Satisfaction Of Golf Spectators In A Korean Ladies' Professional Golf Association Tournament, Jaemon Sun

Master's Theses

A variety of spectator sports, leisure activities, and internet media developments have changed the sport market environment into a serious global competition. In this sport market environment, it is necessary to execute customer satisfaction management to meet the wants and needs of sport spectators. Understanding which service quality factors best predict customer satisfaction is an important issue in the sport events industry. The primary purpose of this study was to examine the relationship between service quality and customer satisfaction for spectators in attendance at a Korea Ladies' Professional Golf Association Tournament event. A secondary purpose of the study was to …

Loyalist Or Patriot: The Precarious Position Of Edmund Randolph, 1774-1786, Tanisha Jean Staten

Master's Theses

On May 29, 1787, Governor Edmund Randolph took the floor of the Constitutional Convention in Philadelphia with a radical plan for a new federal government. Randolph was a key member of the influential Virginia delegation which paved the way for United States' Constitutionalism. An examination of his early life, legal career, and politics offers a new lens with which to view the emergence of American constitutional ideology. Building off the work ofT.H. Breen, who argues that Virginia's landed gentry inhabited a distinct culture, this work illuminates the dynamics of these elites who were absolutely pivotal in shaping a new sense …

Melancholia & Metaphor In Kazuo Ishiguro's The Remains Of The Day, Kristin Lasheaú Teston

Master's Theses

Critics widely acknowledge the psychological grounding of Kazuo Ishiguro's writing. His 1989 novel The Remains of the Day presents a central character deeply afflicted by his inability to acknowledge his condition. Both literal and figurative loss proliferates throughout the novel, and turning to Sigmund Freud's influential essay, "Mourning and Melancholia," allows us to understand how loss influences Stevens's narrative. In this essay, Freud explores conditions that result after the loss of person or an ideal. For Stevens, the lost object is the myth of pre-war English traditions. Freud's theories regarding melancholia provide a crucial insight to Stevens's inability to acknowledge …

Narratives By Six Year Old And Nine Year Old Boys: Brute: Institutional, And Non-Institutional Mental Facts, Adam Craig Whipple

Master's Theses

Brute facts, institutional facts, and non-institutional mental facts were studied. The philosophy of constructionism and the theory of intent provided a framework for this research. Intentionality provided the basis for social facts. Brute, institutional, and noninstitutional mental facts were operationally defined. This study analyzed the use of these facts in the narratives of 6-year-old boys and 9-year-old boys. There were a total of 19 participants in this research. This research established brute, institutional, and non-institutional mental facts as appropriate operational categories for studying children's narratives. The 6-year-old boys produced more brute facts than the 9-year-old boys. The 9-year-old boys produced …

Assessing Respiration Rates And Nutrient Dynamics Of Aritifical Reef Biofilms And Bacterioplankton In The Mississippi Sound, Lynn Elizabeth Wilking

Master's Theses

Artificial reefs are primarily used to provide a suitable habitat for target fish populations, but the structures can also improve water quality and benefit non-target organisms. Laboratory incubation experiments were conducted in the presence of biofilm on rubble and in its absence to examine bacterial growth, community respiration, and nutrient dynamics at four artificial reef habitats in the Mississippi Sound. Biofilm samples were also collected from settlement plates deployed at each site and were analyzed for 813C and 81sN stable isotope content. Respiration rates were always higher in the presence of biofilm but bacterial abundance often declined over time, and …

A Critical Examination Of Green Economic Development As A Post-Disaster Recovery Approach: The Case Of Greensburg, Kansas 2007-2012, David Edgardo Leiva

Master's Theses

In May 2007, an EF-5 tornado ripped through and annihilated 95% of Greensburg, Kansas, a town of about 1,500 people in the southwestern portion of the state. On the heels of the disastrous Hurricane Katrina federal response and with the promise of two sitting presidents to use all of the federal support available, the town vowed not only to "survive, but thrive." Months later, Greensburg civic, business and elected leaders - with a host of external expertise - unveiled a recovery plan that not only set in motion the rebuilding of the two-square mile town but also offered the opportunity …

Morphology And Conformation Of Polythiophene Derivatives In Anisotropic Core-Shell Nanocomposites And Solution, Neil Redeker

Master's Theses

Conjugated semiconducting polymers have garnered substantial interest in recent years due to the potential for use in various applications, particularly in the field of electronic devices such as photovoltaic cells and light emitting diodes. Conjugated polymers offer numerous advantages in these applications, including low cost and high flexibility, but electronic devices based on these materials are currently limited by poor performance. Because of these limitations, increased focus has been placed on improving conjugated polymers for use in commercially viable products. Here, a novel core shell hybrid nanocomposite based on anisotropic zinc oxide nanowires and a side-chain functionalized polythiophene is reported. …

Determining Parentage And The Effects Of Relatedness On Play Partner Preference In Belding's Ground Squirrels, Jessica Weidenbach

Master's Theses

I investigated 1) multiple paternity in Belding’s ground squirrels (Urocitellus beldingi) and 2) social partner preferences in juvenile U. beldingi. Prior work with blood allozymes demonstrated multiple paternity in U. beldingi litters. I evaluated paternity using microsatellite DNA analysis, which is more accurate than examining blood allozymes. My results indicate that multiple paternity in U. beldingi is more extensive than previously shown, occurring in about 90% of litters with more than one juvenile, and averaging 2.95 fathers in multiply sired litters. I also evaluated the hypothesis that play and other social behavior promotes bonding among juvenile female …

Building Women’S Solidarity To Advance Women’S Rights In Bolivia, Luzdary Hammad

Master's Theses

This paper takes a historical look at the deep-seated ethnic and class divisions between women in Bolivia. It also examines the cultural challenges that help explain the status of women in Bolivia and the obstacles women face to become politically active. It provides the theories of decolonization and depatriachalization as practical ways Bolivia can move past their colonial and patriarchal history. It also looks into what feminism means overall in Latin America and what strategies Latin American women have used to make change for women. It then provides a political history of Bolivia from 1994 to the present giving the …

Thermal Modeling And Validation Testing Of A Miniature Xenon Ion Thruster, Samuel R. Parker

Master's Theses

To support the research of miniature ion propulsion, Cal Poly's Miniature Xenon

Ion (MiXI) thruster has been modeled and tested. Using ANSYS Fluent, a two-

dimensional model of the transient thermal environment of MiXI-CP-V3 was

created. Validation testing was conducted in order to assess the accuracy of the

thermal model. During testing, temperature was measured at eight locations

across MiXI. From the test data it was determined that the thermal model did a

poor job of predicting temperature due to incident radiation at the four locations

nearest the keeper electrode. The four remaining locations were affected mostly

by conduction and …

Analysis Of An Inflatable Gossamer Device To Efficiently De-Orbit Cubesats, Robert A. Hawkins Jr.

Master's Theses

There is an increased need for spacecraft to quickly and efficiently de-orbit themselves as the amount of debris in orbit around Earth grows. Defunct spacecraft pose a significant threat to the LEO environment due to their risk of fragmentation. If these spacecraft are de-orbited at the end of their useful life their risk to future spacecraft is greatly lessened. A proposed method of efficiently de-orbiting spacecraft is to use an inflatable thin-film envelope to increase the body's area to mass ratio and thusly shortening its orbital lifetime. The system and analysis presented in this project is sized for use on …

A Software Development Kit For Camera-Based Gesture Interaction, Devlin Cronin

Master's Theses

Human-Computer Interaction is a rapidly expanding field, in which new implementations of ideas are consistently being released. In recent years, much of the concentration in this field has been on gesture-based control, either touch-based or camera-based. Even though camera-based gesture recognition was previously seen more in science fiction than in reality, this method of interaction is rising in popularity. There are a number of devices readily available to the average consumer that are designed to support this type of input, including the popular Microsoft Kinect and Leap Motion devices.

Despite this rise in availability and popularity, development for these devices …

Can Clustering Improve Requirements Traceability? A Tracelab-Enabled Study, Brett Taylor Armstrong

Master's Theses

Software permeates every aspect of our modern lives. In many applications, such in the software for airplane flight controls, or nuclear power control systems software failures can have catastrophic consequences. As we place so much trust in software, how can we know if it is trustworthy? Through software assurance, we can attempt to quantify just that.

Building complex, high assurance software is no simple task. The difficult information landscape of a software engineering project can make verification and validation, the process by which the assurance of a software is assessed, very difficult. In order to manage the inevitable information overload …

Alcohol Consumption And Unwanted Sexual Experiences Among College Females: The Mediating Role Of Protective Behavioral Strategies, Kayla Darlene Moorer

Master's Theses

The narrowing gender gap regarding consumption has resulted in more alcoholrelated consequences specific to females. Compared to males, females report more sexual consequences, such as doing something they later regret, as a result of alcohol consumption. For this reason, there is a vital need for researchers to identify active methods that females can engage in while consuming alcohol in order to reduce the risk of unwanted sexual experiences (UWS). Protective behavioral strategies (PBS) have been shown to decrease overall alcohol-related consequences, but further investigation is needed to determine which strategies are most influential in reducing the occurrence of specific alcohol-related …

Convergence Of Life History Phenotypes In Two Species Of Topminnows, Fundulus Notatus And Fundulus Olivaceus, Jared Aubin Harris

Master's Theses

Convergent evolution is the independent evolution of similar characteristics by means of natural selection. Convergence is a well-known phenomenon, but convergence resulting from equivalent environmental gradients has only been pursued in a few cases. The main purpose of this study was to look for evidence of convergence of life history traits between two sympatrically distributed topminnows. The two species typically separate along a stream size gradient with Fundulus notatus inhabiting the downstream environment, and F. olivaceus inhabiting the upstream headwater environment. However, there are at least three known drainages where the normal distribution pattern is reversed, and F. notatus is …

The Effects Of 8 Weeks Of Low Dose Supplementation Of Creatine And Sodium Bicarbonate On Exercise Performance, Amanda Jessica Morris

Master's Theses

Short-term (3-7 days), high doses of creatine (20g/d) and/or sodium bicarbonate (0.5g/kg body weight) supplementation increase exercise performance during short term high intensity activities; however, it remains unclear whether long-term, low doses of these supplements have a positive impact on exercise performance. The purpose of this study was to determine the effects of long-term (8 weeks), low dose creatine supplementation on exercise performance, and whether combining creatine and sodium bicarbonate supplementation has an additive effect. Sixty-three healthy, habitually active, adults (28 M, 35 W; 22+2 years; 23+ 3 BMI) were randomly assigned by sex to one of three supplement groups: …

The Tweet Delete Of Congress: Congress And Deleted Posts On Twitter, Theresa Loraine Cardenas

Master's Theses

Since 2006, increasingly more politicians have joined , and are active on, social media networks, in order to reach out to constituents. However, politicians, such as Anthony Weiner, have started to find themselves in the middle of Twitter scandals and criticism, since their posts are openly available to the public. These ramifications may be leading politicians to delete their tweets, but thanks to the Sunlight Foundation and its website Politwoops, deleted tweets by politicians are now archived and ripe for political research. This raises the question Which members of Congress are deleting tweets and why? Thus, I conduct the first …

Friction Ridge Dysplasia And Its Preponderance In The Afghanistan Population, Chelsea Elyse Woullard

Master's Theses

Friction Ridge Dysplasia is a rare genetic disorder in which the friction skin ridge units do not fuse together to form continuously flowing friction ridges. The skin affected by Friction Ridge Dysplasia is generally localized to one area and gives a similar appearance of the pebbled state of skin on the snout of a dog. Many authors have briefly discussed Friction Ridge Dysplasia in their publications; however, in-depth reflection as to the cause and rate of occurrence of Friction Ridge Dysplasia has not been documented. The objective of this study is to determine whether or not Friction Ridge Dysplasia is …

Influence Of Parenting Styles And Protective Behavioral Strategies On College Students' Alcohol Use And Alcohol-Related Consequences, Saarah Danielle Kison

Master's Theses

The current study examined the relationships between parenting styles, protective behavioral strategies (PBS), alcohol use and negative alcohol-related consequences in college students. While parenting styles have been associated with alcohol use, there are no studies which have investigated the relationship between parenting styles and negative alcohol-related consequences. Further, while alcohol use and negative consequences have been related to PBS, no studies have investigated the relationship between parenting styles and PBS. The current study hypothesized that PBS will be a partial mediator between parenting styles and alcohol use. The current study also hypothesized that PBS will be a partial mediator between …

In Perfect Xen, A Performance Study Of The Emerging Xen Scheduler, Ryan Hnarakis

Master's Theses

Fifty percent of Fortune 500 companies trust Xen, an open-source bare-metal hypervisor, to virtualize their websites and mission critical services in the cloud. Providing superior fault tolerance, scalability, and migration, virtualization allows these companies to run several isolated operating systems simultaneously on the same physical server. These isolated operating systems, called virtual machines, require a virtual traffic guard to cooperate with one another. This guard known as the Credit2 scheduler along with the newest Xen hypervisor was recently developed to supersede the older schedulers. Since wasted CPU cycles can be costly, the Credit2 prototype must undergo significant performance validation before …

Variability Of Practice And Strength Training Periodization: When Theories Collide, Katherine Lauren Streder

Master's Theses

The primary purpose of this study was to examine whether variability of practice enhances neuromuscular adaptations when compared to traditional strength training. The secondary purpose was to investigate whether there was a difference in perception of exertion between the two strength programs. Forty one subjects (23 women and 18 men) were assigned to either the control group or one of two treatment groups by a blocked-random method. Subject's one repetition maximum (1RM) for the kettlebell press and leg press were measured at baseline, after 4 weeks of training, and after 8 weeks of training. The treatment groups completed 8 weeks …

Effect Of Antimicrobials And Sodium Replacement Agents On The Survival Of Pathogenic Bacteria In Low Sodium Low-Moisture Part-Skim (Lmps) Mozzarella Cheese, Tiffany M J Taylor

Master's Theses

Recent increases in chronic cardiovascular diseases, such as hypertension, have put pressure on the food industry to reduce sodium levels. Dairy products, though full of vital nutrients, are perceived as being high in sodium. However, the reduction of salt in dairy products could potentially alter the microbial stability, as well as cause unfavorable changes in flavor. In order to reduce the sodium level, while maintaining acceptable flavor and microbial stability, salt replacers and alternative antimicrobial agents may need to be introduced into the food matrix. To identify potential antimicrobials for use in reduced sodium dairy products, this study evaluated the …