Digital Commons Network^™

Nanosensors For The Detection Of Nerve Agents And Explosives, Deepak Kumar Thimmaraju

Masters Theses

The central hypothesis of this research was development of a novel nanosensor for the detection of nerve agents and explosives. The nanosensor assembly comprises a bottom up approach with nanoparticle (N), monomer (M), nanomolecule (N) and a receptor (R) as moieties of a NMNR assembly. My research was focused on evaluating receptors for their efficiency towards the target analytes such as nerve agents and explosives. Pi electron rich receptor 2-Phenyl-2-Propanol and its fluorinated analog 1,1,1,3,3,3-Hexafluoro-2-Phenyl-2-Propanol were investigated for their ability to detect nerve agents such as DCP, its analogs DMMP and HCl along with the explosives mono, di, and trinitrotoluene. …

Deconvolution And Segmentation Of Ground Penetrating Radar Images, Vincent Krause

Masters Theses

Ground Penetrating Radar is a valuable tool for infrastructure condition evaluation as well as in archaeology and geology. The image produced by a GPR scan can be difficult to interpret due to the weak reflection amplitude, the overlap of reflections, and due to outside interference. This thesis proposes an algorithm to automate GPR scan interpretation. This will enable maintenance engineers to read GPR scans quickly and accurately.

The proposed algorithm framework uses an optimization-based deconvolution technique followed by a segmentation process. Each column of the image is deconvoluted and thus reducing them to a list of ordered pairs of reflection …

The Effect Of A Skyrme Interaction On Nucleon Induced Reactions, Yingfa Zhang

Masters Theses

The main goal of this Master thesis is the theoretical study of the interaction between a nucleon and a nucleus. This is a fundamental method to study the structure and dynamics of nuclear systems. This thesis concentrates on the study of nucleon scattering on light nuclei, ⁶Li, ⁷Li and ¹⁴N, with the effective interaction M3Y and its modification by adding a Skyrme force. This is the first time the Skyrme interaction has been employed in scattering calculations. From a comparison of the measured differential cross section σ (θ) and the analyzing power Ay (θ) for ⁶Li …

Synthesis And Characterization Of Ruthenium Bipyridyl Complexes For Detecting Nerve Gas Agents And Explosives, Arambe Gedara Aruna Weerasinghe

Masters Theses

Five novel 2,2 '-bis bi pyridine Ru(II) complexes have been synthesized and characterized using ¹H NMR, ¹³C NMR, ¹H-¹H-COSY, elemental analysis, fast atom bombardment or electrospray mass spectra and electronic absorption spectroscopy. Binding of Ru (11) complexes with nerve gas analogos such as diethyl chlorophosphate (DCP), dimethyl methyl phosphonate (DMMP) and hydrolyzed product (HCl) has been investigated by electronic absorption, fluorescence, and lifetime studies. Compound 1 showed a quenching in ³MLCT emission after an initial increase in intensity upon the addition of DCP with a bathochromic shift of 25 nm. Compound 2 exhibit a …

Design Of Multi-Electron Transfer Catalysts For The Reduction Of Trichloroethylene, Christopher Gerard Eman Ciptadjaya

Masters Theses

For decades, organohalide (RX) compounds have been heavily used in the chemical and pharmaceutical industries and in agriculture as pesticides. Improper disposal of organohalides has resulted in their presence in the environment as pollutants, and they have therefore presented serious environmental and toxicological concerns. These organohalides have been associated with various health and environmental problems. Therefore, effective methods for their remediation are required. We have developed a multi-electron transfer (MET) catalyst consisting of flavin mononucleotide anchored to nanocrystalline mesoporous titanium dioxide (TiO₂) thin films, and examined its reactivity toward the organohalide pollutant trichloroethylene (TCE). Various environmental factors were …

A Study Of The Relationship Between Semiotic Content In Commercial Email Subject Lines And The Decision By The Recipient To Open The Message, Stephen J. Johnson

Masters Theses

The writings of Saussure, Peirce, Barthes, Eco and others express theories that symbols, signs, and signals are integral elements in the assignation of meaning within general human communication. Email marketing specialists such as Stephanie Miller, Andy Goldman, and Jeannieay Mullen opine that it is the email recipient’s inferences regarding the words in the address or subject lines that are the primary determinants in the decision whether or not to first open and subsequently respond to a commercial email. It would then seem that email marketers would be well served by understanding what forms these inferences in the minds of the …

Synthesis And Characterization Of Doped Core/Shell Quantum Dots, Elizabeth J. Sodt

Masters Theses

The central theme of the research performed is the systematic modification of the optical properties of quantum dots by the formation of a shell of another quantum dot of a different band gap energy. Core/shell quantum dots such as CdS:Mn/CdS, CdS:Mn/ZnS, and ZnS:Mn/CdS with various concentrations of dopant Mn²⁺ in the core and shell concentrations have been synthesized under mild conditions in the aqueous phase using stoichiometric amounts of the surfactant stabilizer dodecyl sulfate. These quantum dots exhibit UV-vis, emission, and electron paramagnetic resonance (EPR) spectral behavior that is dependent on the concentration of the shell and the dopant …

The Role Of The Interteach In Interteaching, Thorhallur Orn Flosason

Masters Theses

Interteaching is a relatively new instructional method, based on behavioral approaches to education, that has been offered as an alternative to the traditional lecture format in the college classroom. The present study examined the role of the cooperative learning component of interteaching in an undergraduate statistics class. An alternating treatments design, with conditions counterbalanced across two sections of the course, was used to determine whether or not the effectiveness of interteaching depends on the interteach (cooperative learning) component. Weekly exams were administered to measure student learning and social validity was assessed via a questionnaire that required students to rate their …

Nitrogen Heterocyclic Compounds As Receptors In Nanosensors For Nerve Gas Agent Analogs, Swapna Katram

Masters Theses

The research is focused on developing nanosensors consisting of different components that are chemically linked, namely, nanoparticle, fluorescent monomer, and receptor (NMR sensors) and nanoparticle, monomer, nanomolecule, and receptor (NMNR sensors) for the sensitive and selective detection of nerve gas agents. These sensors detect the target toxins by fluorescence change which is amplified by signal transduction. Model nerve gas toxins (DCP) and (DMMP) and HCl were employed as analytes, and the nitrogen heterocyclic compounds, 5-aminoindazole and dipyrido[3,2-a:2',3'-c]phenazine (dppz) as receptors in the NMR and NNMR nanosensors. The monomers were (E)-4-(4- formylstyryl) benzoic acid (NMR sensor) and 2-mercaptosuccinic acid (NNMR sensor). …

The Leadership Style Of An Administrator: Influence On Teachers' Willingness To Implement Selected Instructional Strategies, Brenda Lopez Martinez

Masters Theses

This project examined an elementary public school principal with regard to their leadership style and how it influences classroom culture or climate. A 45- questionnaire was administered to one principal in a public school setting and a classroom survey instrument was administered to nine teachers in his building.

Significant findings based on literature in this project indicated a transformational leader was more inclined to support teachers and utilize different instructional modalities than a principal whose leadership style is transactional. The teacher survey collected data from teachers' perception about their administrator across different instructional domains. The researcher utilized statistical means to …

Cross Platforms Display Calibration And Profiling Mac Os And Windows, Reem El Asaleh

Masters Theses

The monitor is an important part in many digital applications including graphic design, digital photography and prepress proofing. In fact, designers and prepress personnel rely on their monitor for good color decision for a printed job.

The aim of this research is to achieve a consistent color across platform using the same hardware (CPU, monitor video controller, etc.). Also to describe the main issue that affects the accuracy of monitor profiles. ICC profiles were generated for monitor in Windows and Mac OS platform using GretagMacbeth ProfileMaker Pro version 5.0 and X-Rite MonacoPROFILER ICC profiling softwares. In the laboratory environment, we …

Transceiver Design And Radio Frequency Integrated Circuits Evaluation Via Electronic Design Automation, Yu Ming Chen

Masters Theses

This thesis study presents the theory and design methodology of Radio Frequency Integrated Circuits (RFIC) and analyzes a RF frond-end receiver and down-conversion mixers using circuit evaluation tools. The theory of RF is described on both architectures and circuit levels with respect to monolithic implementation in integrated semiconductor technologies. The design methodology provides an efficient and practical way to approach ·the theoretical values by using an Electronic Design Automation (EDA) tool called Cadence Virtuoso custom design platform Based on the libraries provided by the Cadence Virtuoso, a Heterodyne receiver and two Gilbert mixer circuits have . been evaluated through the …

Towards A Better Understanding Of The Hydrology Of The Tigris- Euphrates System And Its Marshlands, Christopher K. Jones

Masters Theses

Rising demands for fresh water supplies are leading to water management practices that are altering natural flow systems world-wide. One of the most devastated of these natural systems is the Tigris-Euphrates watershed that over the past three decades has witnessed the construction of over 60 engineering projects that eliminated seasonal flooding, reduced natural flow and dramatically reduced the areal extent (1966: 11000 km² ; 2002: 750 km²) of the Mesopotamian Marshes downstream. We constructed a continuous (1964 to 1998) catchment-based rainfall runoff model for the entire Tigris-Euphrates watershed (area: one million km²) using the SWAT …

Data Fusion Technique For Measuring Intersection Delay Using Gps-Enabled Probe Vehicles, Byung-Hee Han

Masters Theses

Intersection control delay is considered a primary measure for determining the level of service at signalized intersections. This thesis develops a technique estimating intersection delay using GPS data from GPS-enabled vehicles. First, this study analyzes existing methods that estimate control delays using GPS data and proposes an improved technique in response to the weakness of those methods. The proposed method estimates the control delay well with better accuracy covering the weaknesses. However, the control delay from the GPS data has a sample size problem for determining the level of service at signalized intersections. Therefore, this thesis proposes a data fusion …

Spatial Analysis Of Great Lakes Ferry Transit Systems, Joe Lane

Masters Theses

This thesis will explore the feasibility of a cross-lake ferry on Lake Michigan between Metropolitan Chicago and Southwestern Michigan. Two potential origins have been chosen in Northeastern Illinois (Evanston and Downtown Chicago) and two potential destinations have been chosen in Southwestern Michigan (St. Joseph/ Benton Harbor and South Haven).

The introduction includes historical information on Great Lakes Ferry Systems, information about Great Lakes ports, routes and locations along with the operation requirements for a ferry system. The Methodology includes In-Depth interviews that were done with maritime experts of the Michigan Department of Transportation. This is in order to illustrate a …

An Upper Extremity Biomechanical Model: Application To The Bicep Curl, Adam Miller

Masters Theses

An upper extremity biomechanical model was developed based on recommendations provided by the International Society of Biomechanics. The model was used to investigate biomechanical differences between two variations of the bicep curl exercise: the standing and incline dumbbell curls. An 8-camera Vicon motion capture system was used to collect data on five subjects that executed 10 repetitions of each type of curl.

Four key biomechanical indicator variables were investigated: range of motion, maximum elbow flexion moment, mean elbow flexion moment, and the flexion angle at which the maximum flexion moment occurs. On average, the range of motion at the elbow …

A Computer Aided Diagnosis System For Breast Cancer Using Independent Component Analysis And Fuzzy Classifier, Fadi Abu-Amara

Masters Theses

Screening mammograms by a radiologist is a repetitive task that causes fatigue and eye strain. For every thousand cases analyzed by a radiologist, only 3 to 4 are cancerous and thus an abnormality may be overlooked. Computer-Aided Detection (CAD) algorithms have been developed to assist radiologists in detecting mammographic lesions. CAD algorithms have improved total radiologists' detection accuracy of cancerous tissues. In this thesis, a computer aided detection and diagnosis (CADD) system for breast cancer is developed. The algorithm framework is based on combining principal component analysis (PCA), independent component analysis (ICA), and fuzzy classifier to identify and label suspicious …

Transcriptional Regulation Of Glucose-6-Phosphate Dehydrogenase (G6pdh) By Glucose, Pramod U. Thekkat

Masters Theses

In liver, insulin and glucose regulate the expression of important genes for lipid and carbohydrate homeostasis. Studies on the effects of glucose and insulin, including effects on cell signaling, are vital since deficiencies in glucose utilization in cells and/or insulin secretion contribute to conditions like obesity and diabetes. In liver, the pentose phosphate pathway is one of the primary pathways that can utilize the excess carbohydrate. Glucose-6-phosphate dehydrogenase (G6PDH) is an important rate limiting enzyme in this pathway. Our laboratory has shown that both insulin and glucose induce the expression of G6PDH, although the mechanism by which this transcriptional regulation …

Biochemical Characterization Of Disease-Causing Mutation In N-Terminal Wilson Protein Domain Six, Patrick Ochieng

Masters Theses

Wilson protein (ATP7B) is a copper-transporting P-type ATPase that regulates copper homeostasis and secretion of copper-containing enzymes in the liver. In hepatocytes, ATP7B delivers copper to apoceruloplasmin and mediates the excretion of excess copper into bile. Mutation in the gene coding for Wilson protein leads to Wilson disease. Several mutations in Wilson protein have been identified and of particular interest, mutations affecting the N-metal binding region significantly interfere with the ability of Wilson protein to transport copper to its target in the copper-trafficking pathway. In an attempt to characterize the disease-causing mutation (G591D) in Wilson protein domain 6 (WLN6), we …

Experimental Measurements And Mathematical Modeling Of The Rigid Capillary Dewatering, Vrajesh N. Chokshi

Masters Theses

Rigid Capillary Dewatering (RCD) technology is a process in which water is removed from a wet paper web by capillary dewatering action without excessive mechanical compaction of the fiber furnish. Operating conditions on the Rigid Capillary Pressing (RCP) roll, and properties of paper and pulp determines the dewatering behavior of the RCD technology.

The dewatering behavior of the RCD technology is studied in four sets of experiments performed using different operating conditions, on a paper pilot machine at a Western Michigan University (WMU) facility. The solids content of the paper web before and after the RCP roll in the press …

Building A Predictive Model For Paleo Indian Archaeological Site Location Using Geographic Information Systems, Zachary Jaime

Masters Theses

This research is a multi step method to predict unknown Paleoindian archaeological site locations within Pine Bluffs, Wyoming, situated in the southeastern corner of the state, using a Geographic Information System (GIS). The GIS technology is being used to predict Paleoindian archaeological site locations and will help demonstrate the geographic similarities and differences between already known Paleoindian archaeological sites and random non-site locations in the Pine Bluffs region. Using GIS, one can note the similarities and differences between the Paleoindian sites and the surrounding landscape and, with help of logistic regression analysis, one can predict the location of unknown Paleoindian …

Stratigraphy And Organic Carbon Contents Of Glacial Deposits In The City Of Portage, Michigan, U.S.A., Nathaniel A. Barnes

Masters Theses

The objectives of this study are to characterize the stratigraphy of the glacial drift in an area located in Portage, Michigan using four complete rotasonic cores, and to determine the variation of organic carbon content in the drift that may explain the high iron concentrations in the groundwater typically obtained in moderate to deep wells in southwestern Michigan. The four cores were characterized in detail in terms of lithology, textural and statistical analyses, gamma ray logging, S¹³C variation and organic carbon analyses. Clay minerals were characterized using X-ray diffraction analysis.

Results of this study identified two main diamicton …

Heterogeneous Formation Of Hono On Hno3 Pre-Conditioned Hydrophobic, Hydrophilic And Ionic Surfaces At Various Relative Humidities, Dustin S. Wier

Masters Theses

Nitric acid (HNO₃) is a major sink for NO_x (NO+NO₂ ) and is known to be removed from the atmosphere as a result of wet and dry deposition where it is then deposited on various surfaces in the environment. As these surfaces are photolyzed HONO is produced which affects the overlying troposphere. This study examines the amount of HONO (Nitrous Acid) produced by the photolysis of adsorbed HNO₃ as a function of changing relative humidity on hydrophobic, hydrophilic, and inorganic ionic salt surfaces. The amount of HONO produced was measured in long path cell using …

Development Of Scanning Electrochemical Microscopy For Studying Electron Transport In Lipid Monolayers And Gold Nanoparticle Films, Violeta Stoycheva

Masters Theses

The focus of this thesis is the scanning electrochemical microscopy (SECM) investigation of the electron transport in lipid monolayers and in films of gold nanoparticles. The quality and stability of lipid monolayers were characterized by various analytical techniques such as fluorescence microscopy and spectroscopy, contact angle, and electrochemistry using a monolayer modified electrode. In the SECM measurement, the monolayer electron transport was not detected. The microscopic monolayer quality turned out to be not suitable for studying the electron transport.

The conductivity of mono layer protected gold clusters (MPCs) with different core sizes (1-3 nm diameter) were investigated using SECM. These …

Wimax Software Defined Radio, Assad Saleem

Masters Theses

As processors and configurable devices are getting faster and smaller, they are giving rise to better solutions for various communications systems and standards. In this paper, the implementation of a software defined radio for WiMAX is presented. This paper highlights the system model for simulation to achieve better understanding of the system, which was developed in MATLAB. Also, included in the paper is the discussion of the physical implementation of this communication system. The system is build around National Instruments’ PCI 5640 hardware which features a Xilinx Virtex-II FPGA. Naturally, LabVIEW was the tool used to implement the hardware/software co-design.

Physicochemical Properties Of Individual And Mixed Oxides Of Sio2, Al203, Tio2‚ And Photocatalytic Behaviour Of Organosilane Modified St Samples, Kalyani Gude

Masters Theses

A variety of oxides such as silica, alumina, titania and mixed oxides such as silica/alumina (SA), silica/titania (ST) and alumina/silica/titania (AST) are investigated by TGA and FTIR. These mixed oxides are analyzed because of their applications as catalysts. Thermogravimetric analysis is done on all the samples to determine the temperature at which the weakly adsorbed water is lost and the surface is left with only surface hydroxyls. TGA data showed the loss of most of the adsorbed water at around 100°C.

From the diffuse reflectance FTIR spectra taken at 200 and 300°C the silanol content is estimated from the 3740 …

Assessing Levels Of Hope And Motivation In Two Groups Of At-Risk Undergraduate College Students, Victoria M. Zeter

Masters Theses

Among the many prominent motivational theories addressed in this study, one was central to the research - hope theory. Hope is a goal directed cognitive process that involves three components: goals, pathway thinking, and agency thinking (Snyder, Feldman, Shorey, & Rand, 2002). The focus of this study was to assess the levels of hope and motivation of two at-risk undergraduate student populations attending Eastern Illinois University (EIU). All of the subjects were participants in one of two student support programs: a) Gateway, an alternative admissions program designed to provide access to higher education to underrepresented and disadvantaged students; and b) …

Presenting Problems And Treatment Outcome Of College Counseling Center Clients: The Role Of Gender And Academic Major, Erik Lennart Timothy Fister

Masters Theses

The current study examined whether gender and/or academic specialization had any relationship to students presenting issues, symptom severity, and treatment outcome at a university counseling center. The participants were 484 clients and the data were collected at an East Coast university counseling center. Clients were included for the analyses if they were a new intake, clearly fit into one of six categories for academic major, and attended more than one session. Each client filled out both the Personal Information Form (PIF) and Behavioral Health Questionnaire (BHQ) at intake, and was administered the BHQ prior to each subsequent session. Based on …

Calibration Of Reading Self-Efficacy Beliefs Of Students With Reading Disabilities, Melissa Mickelson

Masters Theses

A study was conducted to measure self-efficacy calibration, or accuracy of performance beliefs, in reading by high school students with reading disabilities. This study examined participant's reading metacognitive skills, reading self-concept, reading comprehension, and reading self-efficacy. Fifty-two participants were placed into a group of students with reading disabilities and a comparison group of normal achieving students. These students completed all measures and group results were compared to determine the degree of calibration, metacognitive abilities, and self-concept of students with reading disabilities as compared to normal achieving students. Results of the study found that students with reading disabilities did not significantly …

Numerical Approximations Of Differential Equations And Applications In Maple, Joyce Zimmerman

Masters Theses

The primary purpose of this work was as an aid for students taking an elemenentary differential equations course, or for students that may be trying to find approximate solutions to a differential equation without solving it. This work covers numererical methods of approximating differential equations. There are three types of methods covered, Euler's method, Runge-Kutta method, and Picard method. Also, in each of these sections there is a biography to introduce students to the various mathematicians covered. In the Appendix, there are several Maple worksheets that can be implemented into a differential equations course. These worksheets contain some programming language …