Digital Commons Network^™

Systems For Predicting Pitzer’S Ion-Interaction Model Parameters, Theresa Balderas Obias

Masters Theses

Pitzer's Ion-interaction Model had been widely used in predicting the non-ideal behavior of solution over a wide range of conditions for natural water systems. The model is successful only when there are sufficient parameters available. However, generating these needed parameters requires a great quantity of work and it would be advantageous to be able to predict the Pitzer's parameters for salt systems when there is no data available.

This research entailed the development of ionic radii dependent equations for Pitzer's binary ion-interaction parameters β_MX⁽⁰⁾, β_MX⁽¹⁾, β_MX⁽²⁾, and C^ϕ_MX . …

Ductile Regime Nano-Machining Of Silicon Carbide, Biswarup Bhattacharya

Masters Theses

This thesis describes experimental work carried out to study the ability to ductile . single point diamond turn both polycrystal Silicon Carbide (SiC) and chemically vapor deposited (CVD) SiC. A Precitech diamond turning machine was used for ductile regime machining of polycrystal SiC at depths of 10 and 25 nm. The possibility of machining SiC in the ductile mode was substantiated by post process analysis of the chips collected during machining and the surface profiles. The force data obtained during machining was recorded and compared later with the different depth of cuts. An investigation into the ability to single point …

Relational Aggression In Adolescent Girls: Developing Self-Esteem For The Target Girl, Lisa Suzanne Gulch

Masters Theses

Relational aggression (RA) is rampant in our schools, especially in middle schools across America. The name-calling, rumors, exclusion, eye-rolling, and whispers work to undermine relationships between and amongst girls. Because RA is covert in nature, the behavior goes mostly unnoticed by the adults in these girl’s lives. Society conditions girls, from a very young age, to respond to aggressive behaviors by not being aggressive back; girls are supposed to be nice. The target of relational aggression is especially hurt by this behavior. She generally suffers from low self esteem and poor social skills, and when put up against a clique, …

Human Resources Management: An Exploration Of Strategic Human Resources Management In Michigan Police Organizations, Jason L. Hunt

Masters Theses

There exists in the law enforcement community an antiquated notion that reactive management policies and practices are sufficient for the day-to-day operations of police organizations (Tafoya 1986,1990; Manning, 1997; Anderson, 2000). The law enforcement community remains highly resistant to change and unfortunately maintaining the ‘status quo’ inhibits the ability of police organizations to prepare for the uncertainties of an ever-changing environment (Tafoya, 1990; Manning, 1997; Anderson 2000).

The research presented here demonstrates the need for the law enforcement community to evaluate management strategies and move toward proactive management practices that are promoted from within the organization rather than from outside …

The Effectiveness Of Aquatic Therapy With Persons Who Have Experienced A Cerebral Vascular Accident, Heather L. Tweedie

Masters Theses

This study examined the effectiveness of using aquatic therapy (AT) as a technique in the treatment of cerebral vascular accidents (CVA). The unique properties of the aquatic environment were manipulated to determine change in range of motion, muscle tone, balance, functional ambulation, and psychological functioning particularly social relationship and positive and negative feelings.

A single subject design was conducted using two subjects that participated in a twelve week aquatic therapy program. Aquatic therapy showed to be effective in treating common symptoms of a CVA. More research needs to be completed to ensure the effectiveness of aquatic therapy in congruency with …

Caregivers’ Perceptions Of Accessibility And Quality Of Services In The Community For Children With Mental Health Diagnoses: A Pilot Survey, Karin E. Brems

Masters Theses

This pilot study was intended to explore caregivers' perceptions of the mental health services available in the community for children with mental health diagnoses. A study-specific survey was developed to look at demographic characteristics, service accessibility, and service quality. This survey was distributed to caregivers through Michigan support groups. Returned surveys were analyzed for themes that could assist in the development of further research to improve community services for children with mental health diagnoses.

This pilot study yielded rich qualitative data. Upon review and analysis, five themes emerged: (1) bureaucratic hassles and getting the runaround, (2) closed doors, (3) support …

Technology And News: How Are Choices Changing The Way Americans Get Their News?, Mary Eilleen Lyon Cleary

Masters Theses

This study examines the on-going research into where Americans get their information about news events. The vehicles that news consumers use drive many markets and news coverage itself. Readers, listeners and viewers are not only choosing a media vehicle; they are also choosing who will advertise on and support those media outlets. Demographics play a role in determining which media vehicles are turned to for everyday news events, crisis information or political events and analysis. Those demographics can in turn influence the events covered by the media. Media outlets will cover what people want to see or hear so advertisers …

Classroom Management In Music Ensembles: Exploring The Relationship Between Perceived Classroom Management Skills And Performance Achievement, Jeffrey David Costello

Masters Theses

As literature repeatedly has stated that classroom management is a great area of concern for teachers, the present study was conducted in an attempt to determine whether a relationship exists between classroom management skills and performance achievement among directors of music ensembles in western Michigan. Subjects (n=28), selected from Michigan School Vocal Music Association’s District Ten, responded to a mail survey providing answers to various questions pertaining to their classroom management skills and education experience. Also volunteered by the participants were the District Festival ratings received by their ensembles during the past three years. These ratings served as the measure …

The Influence Of Landing Technique Versus Technique And Strength Training On Valgus Knee Deformity In Females, Kirsten R. Holmes

Masters Theses

The purpose of this study was to evaluate the effectiveness of landing technique training versus landing technique and plyometric/strength training program on knee valgus during landing in females. Subjects participated in a 6-week training program. A 2 X 3 repeated measures ANOVA with two within subjects’ factors Test and Group was used to test for differences in the knee valgus angle in the landing condition and the five jump condition. A 2 x 2 repeated measures ANOVA with two within subjects’ factors, was used to test for difference in knee extension strength and knee flexion strength. Pre-test knee-valgus 4.76 ± …

The Trials And Tribulations Of Eliciting American Indian Voice, Amber Madoll

Masters Theses

In this thesis I explored the application of oral history in the collection, preservation and interpretation of American Indian cultural history. Through the analysis of written ethnographies, published works, oral histories and case studies, this research addresses some of the major debates hindering oral history's admittance as a viable ethnographic and historical resource. The overall intention of this research was to elicit the major methodological issues anthropologists face when employing oral history techniques in American Indian studies so that solid, comprehensive strategies can be created and implemented to strengthen the acceptance and practice of oral history in modem cultural studies. …

“See Your Healthcare Provider For A Prescription Today!” The Influence Of Direct-To-Consumer Drug Advertising On Nurse Practitioners And Their Patients, Kelly A. Getman-Dissette

Masters Theses

In 1997, the U.S. Food and Drug Administration relaxed the guidelines regarding the advertising of prescription drugs directly to consumers (i.e., direct-to-consumer advertising, DTCA). The purpose of this research was to examine the impact of DTCA on the relationships of healthcare providers with their patients. In order to accomplish this task, in-depth, semistructured interviews were conducted with ten nurse practitioners (NPs). The interviews sought out provider perceptions on four topics as they relate to DTCA: diagnosis and treatment decisions, prescribing practices, additional burden on the provider, and patient trust in the provider. The findings reveal that DTCA has had both …

People Without Voice: Perceptions Of Social Bias Against Muslims In The United States, Dhiren Patel

Masters Theses

This paper is an ethnographic investigation of Muslim American perceptions of social marginalization in the United States as a by-product of various governmental and media forces, with the Kalamazoo, MI community being the regional focus. The existence of the violence-crazed zealot Muslim stereotype has had social repercussions for Muslims living in America. The first part of this research looks at the development of Muslim stereotypes before 9/11. The second half of this paper discuses the results from interviews with local Muslims Americans who have given me their perspective on prejudice against Islam in the United States.

The oral accounts provided …

Investigating Nickel Partitioning In A Contaminant Aquifer, Suama Ndengu

Masters Theses

Improved prediction of the transport and bioavailability of metals in contaminated sediments demands a better quantitative understanding of how metals partition between aqueous solutions and mineral phases. This research examines the partitioning of nickel in a contaminated aquifer from Grand Rapids, Ml. Contaminated aquifer sediments were examined using the five step Tessier et al. (1979) operationally defined sequential extraction procedure to determine the solid phase distribution of nickel in the aquifer sediments. Models used to guide remediation efforts at the contaminated site assume that Ni behavior can be predicted based on Ni adsorption onto ferrihydrite (HFO). Although sequential extraction results …

Alkali Silica Reaction In Virgin And Recycled Aggregates: State Of The Art And Experimental Investigation Using Astm C 1260 And The Staining Method, Shadi Sami Bajjali

Masters Theses

Alkali silica reaction (ASR) is one of the most prevalent causes of concrete deterioration worldwide. A study done in 1995 showing the impact of ASR on structures stated that 104 concrete dams and spillways, massive concrete structures, have been damaged by alkali silica reaction up to date. Since its discovery by Stanton (1940), there has been significant research on ASR, and major advances have been made in understanding the mechanism underlying ASR-induced expansion and in developing methods of preventing ASR in new and existing concrete through proper measures including proper materials selection and mixture proportioning.

This thesis summarizes the findings …

Habitat-Specific Diet Of The Mottled Sculpin And Its Impact On Benthic Invertebrate Community Structure, Brendan M. Earl

Masters Theses

The relationships between predators and their prey are important and influential components in the structure of ecological communities. These interactions not only impact the species involved, but can also have a wide range of direct and indirect effects that resonate throughout the community. In Michigan trout streams, one of the main predators of benthic invertebrates is the mottled sculpin (Cottus bairdi) whose diet and selective predation may influence benthic invertebrate community structure. Using gastric lavage, the stomach contents of sculpins from both erosional and depositional habitats were collected and analyzed to determine the main prey types, prey preference, …

Structure-Activity Relationship Studies On Thioxolone Compounds As Inhibitors Of Human Carbonic Anhydrase Ii, Jared Nyabuto Orwenyo

Masters Theses

Carbonic anhydrase II (CA II) is a zinc metalloenzyme that catalyzes the reversible hydration of carbon dioxide. The role of this reaction in physiology has made it a target of many therapeutic approaches. Most CA II inhibitors currently known are sulfonamide-based and this is the only functional group incorporated into rationally designed CA II inhibitors. Thioxolone (6-hydroxy-1, 3-benzoxathiol-2-one), is a non-sulfonamide that has been found to have CA II inhibitory activity.

Thioxolone and its analogs were studied to evaluate the inhibition activity that can be achieved upon modification of the thioxolone molecule. IC₅₀ values and dissociation constants were determined …

Behavioral Skills Training For Parents Of Children With Autism: Teaching Implementation Of The Natural Language Paradigm, Jill N. Gillett

Masters Theses

The effects of the use of behavioral skills training to teach parents of children with autism to implement the Natural Language Paradigm (NLP) were examined. Data were collected on parent implementation and child behavior. Results indicated that parents of children with autism were able to learn to implement the NLP procedures and continued to implement the procedures accurately throughout the study. Child data indicated that parent-implemented NLP resulted in improvements in child play. These improvements consisted of a decrease in intervals with no toy engagement, a decrease in intervals in which inappropriate play occurred, and an increase in intervals in …

Comparing Material Impact Strength Of Three High Impact Plastic Resins Used In Automotive Grille Using Nonlinear Finite Element Analysis Tools, Jason Santiago

Masters Theses

As a part of Team Value Management program, existing products are benchmarked against the best in class products and their product design and manufacturing reviewed to identify ways to lower costs, such as using less expensive materials or streamlining manufacturing processes.

In this study an effort has been made to compare impact properties of three different plastic resins used in car grilles. The plastic resins being compared are a proprietary grade PC+ABS, an alternate commercial grade PC +ABS and a commercial grade ABS. The results from this study will be used to evaluate the feasibility of replacing PC+ABS with ABS …

Are Female Television News Anchors Still Judged By Their Appearance: A Study Of Gender Bias In Relation To Female Television News Anchors And Their Perception Of Age And Appearance Discrimination, Dottie M. Barnes

Masters Theses

Are Female Television News Reporters Still Judged by Their Appearance Many female television news anchors and reporters believe the emphasis placed on physical appearance in the 1980s and 1990s exists in the same magnitude today. As of 1998, women comprised more than one-third of the television news workforce in the United States and half of all television news reporters and anchors. According to testimonials from female news anchors, women continue to feel pressured to look young and attractive. Studies show female anchors believe they have overcome some of the gender bias encountered in the 1980s and early 1990s. A 2005 …

The Effect Of Glycemic Indices And Timing Of Meal On Exercise To Fatigue, Amy Morrison Gyorkos

Masters Theses

The purpose of this study was to investigate and describe the influence of pre-carbohydrate feedings prior to exercise to fatigue. Five individuals performed a peak bike test and four experimental trials, separated by 7 days. Upon arrival, subjects ingested 1g of carbohydrates (CHO) for every kilogram of body weight (BW) of a high glycemic index meal (HGI) or a low glycemic index meal (LGI) prior to exercise to fatigue. Subjects waited 30- or 60-minutes following each test meal, totaling four experimental trials. The exercise regiment was consistent following each meal; 90 minutes cycling at 70% peak oxygen consumption (VO_{2peak …}

Design Of A Reconfigurable State Transition Algorithm For Fuzzy Automata, Paolo A. Tamayo

Masters Theses

An Ontological Controller, a type of supervisory controller used for complex industrial systems, is usually characterized by a large global state set. Monitoring the global state set of these systems is impractical when the desired goal path is chosen since the decision on the next state depends only on a small section of the total state space. The approach is to operate only in a small moving window of the large state transition path. The Hybrid Fuzzy-Boolean Finite State Machine (HFB-FSM) is part of the solution to implement this scheme. The HFB-FSM models the state graph along with plant data …

Aspects Of Fatherhood In Thirteenth-Century Encyclopedias, Philip Grace

Masters Theses

The thesis examines the treatment of fatherhood in Thomas of Cantimpré's Liber de Natura Rerum, Bartholomaeus Anglicus' De Proprietatibus Rerum, and Vincent of Beauvais' Speculum Maius, all of whom were influential mendicant encyclopedists writing between 1240 and 1260. The study examines sections on anatomy, the ages of man, family relations, and the theology of marriage. The thesis argues that the anatomical concept of heat functioned as a metaphor for masculinity, strength and intelligence, and linked together such aspects of fatherhood as the father's formative role in conception and the responsibility to instill virtue in and provide for …

Third Wave Feminist Identity, Sarah Brightman

Masters Theses

The research I am proposing is to gain a better understanding of current, individual feminist identity and the impact of that identity, more broadly, on current feminism. There is controversy in the current literature about the existence of a third wave of feminism and I believe this research will contribute to this discussion by exploring various individual experiences with feminism and how feminist identity fits into individuals lives. Gaining an understanding of young feminist identity and the individual meaning of feminism might help define the characteristics of this whole new generation of feminists in their own terms. Much progress and …

Resistivity, Induced Polarization, And Spontaneous Potential Study Of Part Of The Calvin 28 Oil Field, Cass County Michigan, Eric M. Larsen

Masters Theses

Some hydrocarbon reservoirs have a documented reducing chimney, extending upward to the surface due to diffusion of hydrocarbon volatiles. This effect reportedly reduces the iron in the soil to magnetite and precipitates fine-grained pyrite if there is sufficient sulfur in the system. This study was conducted to test the detectability of the hypothetical chimney, using electrical geophysics in an environment of relatively recent glacial cover, known depth to an underlying petroleum reservoir, and known faulting.

The Calvin 28 oil field, in Cass County Michigan, is a middle Devonian domal field where reservoir rocks are draped over the central uplift block …

Use Of Borate In Semi-Chemical Pulping, Promodh K. Veguru

Masters Theses

The original Neutral Sulfite Semi-Chemical (NSSC) pulping process used sodium sulfite as the principle cooking chemical and had the disadvantage of sulfur emission problems. Considerable research was conducted to investigate the use of other chemicals including sodium hydroxide, but was not completely satisfactory. Several mills adapted a sodium carbonate based process but experienced slower pulping and reduced physical properties. The objective of this research is to study the use of borate as a pulping chemical in sodium carbonate semi-chemical pulping. The experimental plan included digester cooks; controls with pure sodium carbonate, and the other with partially borate autocausticized sodium carbonate. …

Effect Of The Cycle-Run Transition On Running Economy In Triathletes, James J. Swanson

Masters Theses

The purpose of this study was to investigate the effects of prior cycling on running economy (RE) during the running portion of a simulated Olympic distance triathlon. Six triathletes and one duathlete participated in four consecutive laboratory trials: (1) maximal treadmill tests, (2) independent 40km cycling trial (IC), (3) independent 10km treadmill running (IR) and (4) 40km cycling (TC) followed by a 10km treadmill run (TR). Pulmonary data were collected every minute using an automated breath-by-breath system and compared between the first and last ten minutes of each trial. The data showed a significant increase was seen in RE from …

A Bioarchaeological Investigation Of Two Unmarked Graveyards In Bridgetown, Barbados, Christopher Crain

Masters Theses

In 1996 and 1999 two previously unknown graveyards were discovered in separate sections of Bridgetown, Barbados. Emergency excavations of the sites recovered the skeletal material of at least thirty-two (MNI=32) individuals as well as a number of grave goods. While the artifacts were from the historical period there was continuing speculation as to the ancestry of the individuals interred within these graveyards. During the summer of 2004 the first preliminary osteological analysis of the skeletal material was conducted to identify the biological characteristics, including the ancestral affiliation, of these individuals. The analysis determined that the individuals interred at these sites …

Defining Peaceful Picketing: The Michigan Supreme Court And The Labor Injunction, 1900-1940, Coreen Derifield

Masters Theses

In a ruling which would stand for nearly half a century, the Michigan Supreme Court decided in 1898 that pickets and boycotts were inherently violent activities, and declaring them illegal, the Court sanctioned the injunction to restrict their use during a strike. This thesis traces the Court's rulings across these forty years, analyzing how these cases functioned, assessing their impact on union activity, and charting the role of the Michigan Supreme Court in legal procedure. Examining the Court's rulings in three different geographic, social, and cultural environments from the early 1900s to the 1930s, the thesis argues that the Michigan …

Design, Synthesis And Characterization Of Nanosensors For Nerve Gas Agents, Thushara Gunasinghe

Masters Theses

This research is focused on the design synthesis and characterization of nanosensors to detect the nerve gas agents such as sarin at very low concentration levels (parts per billion and lower) which is very important to combat terrorism. Nanosensors constructed by the bottom up approach could provide the low sensitivity levels and high selectivity required for nerve gas detection. The sensing mechanism exploits the inherent properties of nanomaterials and signal amplification by signal transduction. The components of a nanoparticle-fluorescent monomer-nanomolecule-receptor (NMNR) sensor have been designed, synthesized, and characterized successfully. Interaction of the components of NMNR sensor with a model nerve …

Great Lakes Coastal Wetland Fragmentation: Edge Effects On Zooplankton, Macroinvertebrate, And Larval Fish Communities, Keto F. Gyekis

Masters Theses

Wetlands are some of the most diverse and ecologically important habitats in the world. Although wetlands have been plagued by anthropogenic destruction and disturbance, there is a general lack of knowledge regarding how fragmentation affects these systems. During the summer of 2004 and the spring and summer of 2005,1 investigated edge effects associated with anthropogenic fragmentation in 25 fringing marshes of Lakes Michigan and Huron. Environmental data, microcrustacean zooplankton, aquatic macroinvertebrates, and larval fish were collected along transects extending into each marsh from reference (natural) and anthropogenic (artificial) edges. Bulrush stems of Great Lakes fringing marshes attenuated the influx and …