Digital Commons Network^™

The Effects Of Acute Exercise On Plasma Volume Expansion In Men – Variations Of The Intensity/Duration Relationship, Christopher Matthew Gregory

Masters Theses

The purpose of this study was to examine the exercise variables of intensity and duration in relation to PV expansion during an acute bout of exercise, when the total amount of work performed was kept constant. Six male subjects completed a maximal graded exercise test and three two-day experimental trials. During the experimental trials, each subject performed one of three exercise protocols on a cycle ergometer: 50% VO_2peak (60 minutes), 65% VO_2peak (45 minutes), and 80% VO_2peak (30 minutes). Measurements of hematocrit, hemoglobin, and serum albumin and total protein concentrations were obtained before exercise (BASE), immediately post-exercise …

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 . …

Simulating Discriminatory Profiling, Oscar Neal

Masters Theses

There is a concern that racial profiling is being used to invoke searches and stops in spite of its violation of the fourth amendment. Simulation methods are used to study the correlation test of stops, searches and citations with race, age, and gender. The design uses sensitivity analysis of inputs to determine their relationship to outputs statistics of a police department's citations and stops. Experimental results are than used to verify and predict departmental bias. A simulation program written in Visual Basic is used as a tool to explore simulation techniques. A formulation of simulation uses in studying discriminatory profiling …

Cloning, Overexpression, Purification And Characterization On N-Terminal Metal Binding Domains 5 And 6 Of Wilsons Disease Protein, David Achila

Masters Theses

Wilsons disease is an autosomal recessive disorder of copper metabolism which results from mutations in the gene encoding for Wilson disease protein (WDP). The cytosolic N-terminus of WDP comprises six metal binding domains each containing a conserved metal binding motif, GMXCXXC. The contribution of these metal binding domains to copper homeostasis is poorly understood. We have cloned, expressed and purified residues 485 to 633 corresponding to N-terminal metal-binding domains 5 and 6 of WDP (WD5-6). Two of the 3 disease causing mutations in the N-terminal metal binding domains of WDP occur one in each of these domains and the two …

Development Of A Web-Based Gis For Groundwater Exploration In Arid Lands, Nakul Manocha

Masters Theses

A three-fold exercise was conducted to assess the groundwater potentiality in the Eastern Desert (ED) of Egypt. First, a database was generated to host all relevant data sets in a GIS environment for a better understanding of the spatial relationships between these data sets. Co-registered digital mosaics were generated from relevant data sets including remote sensing (e.g., Landsat TM, SIR-C, SRTM, TRMM), geochemical (solute concentrations, O and H stable isotope composition), geological (geologic maps), and hydrological (lithology, depth to water table) data sets. Second, a web-based GIS interface (ArcIMS) was developed to provide a vehicle for data analysis, visualization, and …

A K-Epsilon Extension For Wall-Bounded Flows On The Broadband Aeroacoustic System Simulator, David González

Masters Theses

The turbulence modeling capabilities of the Broadband Aeroacoustic System Simulator (BASS), an experimental code developed at NASA Glenn Research Center, have been extended to include wall-bounded flow capabilities. This was done by first validating the code's viscous solving routines by comparing numerical solutions to known, simple analytic solutions. Finally, the dynamics of the wall shear flows were accounted for with the use of wall-damping functions incorporated into the turbulence model. The results for both viscous and turbulence routines agree well with published data.

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 …

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 …

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 …

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 …

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 …

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 …

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 …

A Tool Supporting Validation Of Uml Models, Weng Liong Low

Masters Theses

Software design is an important phase in the computer software development life cycle. The Unified Modeling Language (UML) is a widely used notation to design software models. As a software system increases in size and complexity it is harder for developers to check that their UML models are correct with respect to the UML metamodel. Consistency among different diagrams in a UML model is also important to ensure that there are no design conflicts that will lead to problems later. Incorrect software design will result in loss of productivity, time and money as developers fix design errors. Therefore, to ensure …

Segmentation Of Thermal Images For Non-Destructive Applications, Solange Yohali

Masters Theses

Infrared Thermogarphy (IR) is used in this project to detect subsurface conditions in concrete specimen for nondestructive testing and evaluations. This thesis goal is to bridge the gap between Infrared Testing and image analysis by developing an algorithm based on the region growing approach to segment the images and identify the voids without human interference or prior knowledge of the conditions. The segmentation algorithm starts with seed points as the hottest pixels in the image, and then regions are grown based on a neighborhood comparison criterion. The algorithm was tested on images collected from concrete specimen containing various man-made defects …

Applications Of Integrated Data Viewer – Idv In An Introductory Meteorology Class For Non-Science Majors, Ricardo C. Nogueira

Masters Theses

Computer products developed to visualize and integrate meteorological products with real-time data can create a virtual reality of the atmosphere. These advanced technologies help educators to improve teaching techniques in the classroom for science and non-science majors and increase the students' interest in learning as well. One of these products, the Integrated Data Viewer (IDV), was recently developed by University Corporation for Atmospheric Research (UCAR) project, Unidata, to visualize and integrate geoscience data. This study compares students' performance in the laboratory sessions using IDV-based and MANUAL-based exercises. Comparison of lab scores with exam scores of questions on the same topic …

The Effects Of Brain Gym® Activities On Second-Grade Students' Academic Performance And Handwriting Skills, Kristen Keinath

Masters Theses

Objective: The purpose of this quantitative study was to determine the effects of Brain Gym® activities on second-grand students' academic performance and handwriting skills.

Method: Results were obtained by administering the Test of Handwriting Skills (THS) to two classrooms in a Northern Michigan Elementary School and having both teachers complete a self-developed Academic Performance Form on each student participating in the study. The data from was analyzed using a t-test for the THS and mean scores for the self-developed Academic Performance Form.

Results: Findings suggest a significant difference (p < .05) in the number of letters produced in 20 seconds and spacing of letters. Non-standardized testing showed a decrease in attention to task scores between pre- and post-testing.

Conclusion: Brain Gym® activities were shown to positively effect handwriting …

Ionic Liquid As Catalysts In The Cycloaddition Of Co2 To Styrene Oxide In Supercritical And Subcritical States, Joy Mwalimu

Masters Theses

Supercritical fluids (SCFs) have fascinated researchers ever since the discovery of a critical temperature more than a century ago.¹ Initial studies focused mainly on the physical properties of supercritical phases.² However, their use as reaction media has sparked mainly during the last five to ten years.²

The coupling of CO₂ and Ionic Liquids (ILs) in the synthesis of cyclic carbonates comes from an increasing need for environmentally and toxicologically benign processes for the production of high-value compounds. In my research, CO₂ was utilized as both a replacement solvent and a C₁ feedstock in its …

Psychosocial Theories Of Development: Socializing Future Educators In Modernity, Jennifer Jill Niedzielski

Masters Theses

The purpose of this paper is to illuminate the implicit curriculum of high-profile theories of identity and moral development as commonly found in collegiate-level educational psychology texts. My primary concern is the manner in which Erik Erikson's and Lawrence Kohlberg's theories of development implicitly convey modernistic frames of mind of the autonomous individual at a level that goes unnoticed. The manner in which the implicit curriculum socializes future educators to adopt the autonomous individual frame of mind is problematic for our natural world.

The aims of this paper are significant because they illuminate the notion of the autonomous individual as …

An Investigation Of The Interlobate Area West Of Three Rivers, Michigan And Its Relationship To The Late Wisconsinan Glaciation Of Southwest Michigan, Scott J. Kendzierski

Masters Theses

A detailed investigation of selected mineralogical and textural characteristics of glacial deposits was conducted in order to explore the complex relationships between the Lake Michigan and Saginaw Lobe ice-margins and associated depositional regimes during the deglaciation of southwest Michigan. Various analytical methodologies were applied to the characterization of glacial materials, glacial and post-glacial environments in order to infer a chronology of lobate activity.

The Sturgis Moraine, located in St. Joseph County, Michigan, is a major recessional moraine owing to the processes of both the Lake Michigan and Saginaw Lobes. Analysis of geologic materials and examination of subsurface data along with …

Effectiveness Of Wavelet Transform, Fractals, Lacunarity And Spatial Indices In Content-Based Image Retrieval, Sivagurunathan Chinniah

Masters Theses

The thesis demonstrates the feasibility of applying wavelet transforms, fractals, and spatial indices in content-based image retrieval (CBIR) of remotely sensed imagery. It consists of three major parts: the design and development of thick-client CBIR software, population of two samples of SPOT™ and Landsat 7 Enhanced Thematic Mapper Plus (ETM+) image databases with metadata describing their visual properties, and, exploration of the effectiveness of region quadtree query and retrieval by content using various combinations of indices. 272 SPOT™ and 507 Landsat 7 ETM+ 512 x 512 pixel panchromatic images of Atlanta, Georgia were subsetted from two scenes. Moran's I index …

Effect Of Antioxidants On Cadmium Induced Oxidative Stress And Signal Transduction, Deepti Goel

Masters Theses

A study was done to establish if reactive oxygen species (ROS) participate in the signal transduction pathway through which cadmium induces gene transcription. Cadmium has become a concern in the health care community in the past few years as evidence suggests that cadmium can induce the development of tumors, influence cell signaling and cause damage to organs, tissue, cells and DNA. The mechanism by which cadmium exerts its action on cellular processes or induces toxicity is however unclear although there is evidence to suggest that ROS play a role. Our laboratory is interested in understanding the mechanisms of differentially regulated …

Seasonal Variability In Trace Metal Speciation And Vertical Redox Stratification Of Freshwater Lake And Marsh Sediments In The Kalamzoo River Watershed (Mi, Usa), Noah Tumusiime Ndenga

Masters Theses

This research was aimed at: 1) quantifying redox-sensitive parameters in order to study redox stratification of the upper freshwater sediments at Asylum Lake and Kleinstuck Marsh, 2) quantifying the speciation of metals (e.g., Pb, Mn, Fe, Cr, Cu, Zn, Co and Cd), particularly with respect to their association with Fe and Mn (hydr)oxide phases, and 3) assessing changes in redox stratification and metal speciation as a function of season in the sediments. Both the solid phase and sediment pore waters were collected to a depth of ~50cm. Pore waters were analyzed for redox-sensitive species and the sediment solid phase was …

Copper Exchange Studies Between The First And Fourth N-Terminal Metal-Binding Domains Of Wilson Disease Atpase, Jennifer Bunce

Masters Theses

The human copper-transporting ATPase Wilson's disease protein was one of the first proteins shown to be actively involved in cellular copper homeostasis. The protein includes six N-terminal metal binding domains. The individual capabilities of the domains to bind and transfer copper are not yet fully understood. Each metal-binding domain is about 72 amino acid residues long and contains the conserved binding motif GMTCXXC, of which the cysteines are involved in the copper coordination. Studies have shown that the protein binds six copper atoms suggesting the potential involvement of each metal-binding domain. Separate functional roles for the latter domains have been …

The Effects Of Various Types And Percentages Of Fillers With The Mechanical Properties Of Latex Saturated Paper, Jeffrey Alan Kuehn

Masters Theses

This study examined how the percentage of mineral fillers and their various types, when added to the base paper, affects the mechanical characteristics of latex impregnated paper.

A series of model handsheets were produced and subjected to physical property tests. The basis weight of these handsheets was held constant, as various types and percentages of filler were added. This base paper was then impregnated with a known acrylic emulsion. All variables with the impregnation process were held constant during the impregnation process. Physical properties were tested on the handsheets before and after impregnation. All physical tests on the handsheet samples …

Development Of A Statistical Model For Process Control To Eliminate Sink Marks In Injection Molded Products, Kurt Frederick Hayden

Masters Theses

Customer demands for high-quality, defect-free injection-molded products are ever increasing. In order to satisfy these quality requirements, much effort is spent monitoring and controlling variable data such as cycle time, part weight, and dimensions. Attribute defects such as sink or splay are often overlooked in the development of process control systems. However, customers reject products because of these attribute defects. Industrial control systems based upon process variables and product design variables can detect conditions that may result in the molding of products with attribute defects. The systems can then correct the process prior to the molding of these defective products. …

Glacial Stratigraphy And Surficial Geology Of The Decatur, Lawrence, And Paw Paw U.S.G.S.7.5 Minute Quadrangles In Van Buren County, Michigan, Brian Bird

Masters Theses

The modern day landscape of Van Buren County Michigan was created by the advance and retreat of glaciers from about 13,000 to 20,000 years ago. The Lake Michigan Lobe of the Laurentide Ice Sheet sculpted southwest Michigan most recently. The sediments deposited by the glacier include diamicton, outwash sediments, and lacustrine deposits. The build up of sediment by the glaciers led to the construction of particular features such as moraines, till plains, and outwash fans. The huge amount of meltwater from the glaciers led to the erosion of channels throughout the area. In the area of this investigation the Ganges …

A Preliminary Study Of The Kaogong Ji (The Book Of Artificers), Hanmo Zhang

Masters Theses

The focus of this paper is on the ancient Chinese text of the Kaogong ji, which is now included in the Zhouli as one of its chapters. Through a careful comparison between the Kaogong ji and the rest of the Zhouli and through a synthetic analysis of academic discussions of the completion date and authorship of the Kaogong ji, this paper attempts to show that the Kaogong ji had been an independent text before its inclusion. It goes on to disprove the argument that the Kaogong ji was forged by the Han scholar Liu Xin as political propaganda. …

Synthetic And Structural Studies Of Novel 1, 10-Phenanthroline Derivatives, Eunjoo Kim

Masters Theses

Asymmetric catalysis can provide a general approach to the preparation of enantiomerically enriched compounds in organic synthesis. Very often these asymmetric catalysts consist of a chiral ligand-metal complex. Because of the growing demand to develop enantioselective reactions in organic chemistry one focus of this area of research is the design and characterization of new chiral ligands for asymmetric synthesis.

The focus of my research is in the design, synthesis, and characterization of novel 1, 10-phenanthroline derivatives that could be used as chiral ligands in enantioselective reactions. Central to these studies have been the effect of substituents on the B-ring of …

Tilt-Rotor Aircraft Flight Control Design With Pid, H2, H∞ And Μ Synthesis Approach, Yinyang Zhai

Masters Theses

The main objective of this project is to design optimal controllers for Hover and Cruise Dynamic Systems of XV-15 Tilt Rotor Aircraft. The design criterion is to make system Robust in sense of both Stability and Performance. μ synthesis is applied to system uncertainty; this method is less conservative as compared to the worst-case H_∞ synthesis. The power of P∆K architecture is to represent uncertainties and system interconnections in μ synthesis. For comparison, the classical control techniques, such as Root Locus Algorithm, PID controller design with ITAE Performance Index, and Pole Placement Approach are also investigated. For application of …