Digital Commons Network^™

Investigations Of A Phenanthroline-Based Azo Dye Ligand And Of Re(I) And Ru(Ii) Complexes Based On This Ligand, Yan Zhang

Masters Theses

A 1,10-phenanthroline based azo dye ligand, phen-azo-phenol, produced by diazotizing 5-amino-1,10-phenanthroline (5-NH₂-phen) and then coupling to phenol, and several transition metal complexes containing this ligand, have been synthesized and characterized. The phen-azo-phenol ligands attach to Re(I) and Ru(II) through the phenanthroline linkage to form stable polypyridyl complexes. These complexes show greatly enhanced absorption properties in the visible region when compared to the well-known analogous bipyridine and phenanthroline containing complexes. The visible light absorption of the free ligand and the complexes containing this ligand are greatly affected by the position of the deprotonation equilibrium of the -OH group on …

The Use Of Noncontingent Reinforcement In The Regular Education Classroom With Attention-Deficit Hyperactivity Disorder Children, Heather A. D. Ochs

Masters Theses

A problem that exists in many regular education classrooms is excessive disruptive behavior of students. This study will examine the disruptive behavior of two children, age 8, who have been diagnosed with Attention-Deficit Hyperactivity Disorder, in a simulated regular education classroom. Due to a renewed emphasis on linking treatment to functional analysis, noncontingent reinforcement was utilized to determine whether teacher mediated or peer mediated attention can decrease the disruptive behavior. This study used a multi-element design for the functional analysis and a reversal (ABAB) design to evaluate the effects of the noncontingent reinforcement treatment. Results indicated that peer attention was …

The Effect Of Cognitive Load On Stance Width Of Healthy Older Adults, Susan Brown, Amy Thackery

Masters Theses

Research has shown that narrower stance widths lead to increased postural sway. There is also evidence of increased postural sway with cognitive loading. However, no research has been done to investigate the effect of a cognitive load on stance width. The purpose of this study was to determine if a cognitive task affected the stance widths of healthy, community dwelling 65-80 year old adults. Subjects underwent six task trials (three cognitive, three non-cognitive) after which their stance width was measured. Cognitive task trials required subjects to count backwards by 7's; non-cognitive task trials required subjects to look at a picture …

Exploration Into The Validity Of Use Of The Bruininks-Oseretsky Test Of Motor Proficiency In Assessing The Adolescent With Down Syndrome, Robin J. Essebaggers, Wynne M. Martin, Gina E. Smies

Masters Theses

The purpose of this study was to investigate the validity of the Bruininks-Oseretsky Test of Motor Proficiency (BOTMP) in assessing the adolescent with Down syndrome. Thirteen individuals with Down syndrome ages 13 to 20 years with an IQ of at least 35 were administered the short form of the BOTMP (BOTMP-SF). The functional abilities of these subjects were assessed using the Pediatric Evaluation of Disability Inventory (PEDI). Four parts of the PEDI were utilized: 1) Self-Care Functional Skills, 2) Self- Care Caregiver Assistance, 3) Mobility Functional Skills, and 4) Mobility Caregiver Assistance. No evidence of significant correlation existed between the …

Concurrence Of Decreases In Barometric Pressure And Spontaneous Rupture Of Membranes In Term Gravid Women, Linda M. Owen

Masters Theses

A retrospective design was used to examine the relationship between spontaneous rupture of membranes in term gestation gravid women and decreased barometric pressure of ten millibars or greater in the twenty-four hours proceeding the rupture of membranes. Delivery logbooks and charts of all women who were admitted to a Midwestern Hospital in 1997-1998 with spontaneous rupture of membranes (N-533) were examined and data from the Midwest Climate Center was utilized to determine the changes in barometric pressure within the twenty-four hours proceeding the documented rupture of membranes.

No correlation was elucidated between the timing of spontaneous rupture of the amniotic …

A Portable, Object-Oriented Library For Neural Network Simulation, Martin P. Franz

Masters Theses

A portable, object-oriented library for simulation of general Multi-layer Feedforward Neural Networks (MLFNs) is described. Unlike all-encompassing neural network simulation environments, the library was designed to allow convenient use in existing programs and in applications where training and testing data are generated using separate, often complex simulations.

The library' s design goals include modularity, portability, efficiency, correctness, compactness, and type-safety. To demonstrate how these objectives are met, competing architectural choices are presented, along with the criteria used for determining the strategy actually implemented. Sample applications using the library are presented, showing how the library' s class files are used in …

Nickel Subsulfide Can Protect Human Fibroblasts From The Mutagenic Effect Of Benzo[A]Pyrene Diolepoxide, Samir M. Hamdan

Masters Theses

Cancer researchers are interested in identifying the environmental causes and synergistic influences of different carcinogens. It is important to examine the combined effect of multiple carcinogens since this is a more realistic representation of the true environmental situation in which we are exposed daily. Our study has reported that pretreating human fibroblasts with nickel subsulfide followed by the simultaneous treatment with both nickel subsulfide and benzo[a]pyrene diolepoxide (BPDE) can protect human fibroblasts from the mutagenic effects of BPDE. These results correlate well with our previous chromium-BPDE co-treatment work, suggesting a transition metal dependent protective effect. This protective effect was dependent …

Improving The Writing Skills Of At-Risk Students Through The Use Of Writing Across The Curriculum And Writing Process Instruction, Theresa A. Dean-Rumsey

Masters Theses

A plan for improving the writing skills of at-risk students was developed and implemented. Subjects were fifteen seventh-grade Title I students who demonstrated weak writing skills. Evidence for the existence of the problem included MEAP test scores and teacher observations. A review of research on writing pointed to the following solutions to the problem: increasing students’ experiences with writing by implementing writing across the curriculum, improving students’ knowledge and use of the writing process, and direct instruction in writing strategies and techniques. Results of the post-test did not indicate a significant improvement in writing had occurred as a result of …

Spatial And Temporal Variations Of Cloud-To-Ground Lightning In Southern Michigan, Michael A. Crimmins

Masters Theses

Lightning has a profound impact on many aspects of modern day society. Understanding its temporal and spatial distributions is fundamental in learning to coexist with its destructive power. This study surveyed the spatial and temporal distribution of cloud-to-ground lightning over southern Michigan using data provided by the Detroit Edison Company. Flash density and 'lightning day' maps were produced for every year of the 1985 to 1995 study period and then averaged to determine long term trends. A temporal analysis determined the distribution of lightning from the inter-annual down to the diurnal scale.

The spatial analysis indicates both deficiencies in the …

Application Of The Paleomagnetic Fold Test To Determine The Relative Timing Of Sill Intrusion And Deformation In The Southwest Helena Salient, Montana, Stephen Christopher Whisner

Masters Theses

The Doherty Mountain fold complex is a highly folded and faulted region along the southern boundary of the Helena Salient in southwestern Montana. This region has a complex deformation history that is a key to deformation within the Helena Salient as a whole. A structural interpretation of the deformed rocks of this area was conducted using field mapping and cross section construction at 1:24,000 scale providing insight to the internal deformation processes involved. Fourteen folds and three major faults were mapped and analyzed showing the influence of the Southwest Montana Transverse Zone and late stage detachment faulting on fold orientation. …

Separation And Determination Of Monochlorophenols By Capillary Zones Electrophoresis, Zarina Yasmin Banu

Masters Theses

Chlorine has been widely used in industry. One of the most common uses of chlorine is in municipal water treatment plants. Chlorine reacts with a variety of organic compounds, among these are phenol and its derivatives which are commonly found in natural waters. When these compounds react with chlorine, a variety of chlorine substituted and oxidized products result depending on concentrations, pH, and temperature. In order to study these reactions it is necessary to separate and determine the various products produced.

Earlier studies have shown 3-chloro and 4-chlorophenol cannot be separated by commercial GLC columns. GC/MS (electron impact) measurements cannot …

Synthesis, Characterization And Photophysical Behavior Of A Cr(Iii) Bimetallic System, Yan Chen

Masters Theses

Many binuclear transition metal complexes have been studied to understand the nature of interactions between the metal centers. People have found Simultaneous Pair Excitation phenomenon in some bimetallic system that can serve as a potential source of Non-Linear Optical behavior.

Thus a series of Cr₂ -([14]aneN₄)₂-X₄ⁿ⁺ complexes were synthesized and characterized. Only the cis,cis configuration was found. The results were compared with those of their monomer analogs. The electronic structures are very similar in both monomer and dimer complexes. The quantum yield, UV-Vis absorption and lifetime studies suggested a possible coupling between the …

The Identification Of Domains And Competencies For Community Practice Occupational Therapy, Lisa Anne Werner

Masters Theses

Literature shows evidence of a shift in occupational therapy from traditional institutional settings to community-based settings. As increasing numbers of new and expert occupational therapists enter community-based practice, the need for competency identification for practice, education, and reimbursement becomes paramount. This qualitative research study sought to identify domains and competencies of community-based occupational therapy practice by interviewing three expert occupational therapists using the critical incident method in which each therapist described one therapeutic intervention with a client. This method, as seen in nursing studies (Benner, 1982, 1984), serves to elicit competencies embedded in expert practice. Thirty-nine competencies were described in …

Mathematical Model Of Paper Discoloration By Ink Particles, Zbigniew W. Slotwinski

Masters Theses

The goal of this experiment is to investigate how changes in the size and number of ink particles will affect the final brightness of the filter pad.

It was assumed that any differences in brightness of the used Millipore filters were due to change in the average particle size, given the same mass of ink solids on each filter. However, such simplified interpretation of image analysis proved to be inadequate to solve this complex problem.

The correlation between the particle area, number of particles, and brightness drop was established using an algorithm based on the particle area and the square …

Post-Secondary Retention Of The Non-Traditional Student At The Davenport College Career Center, Sheryl Roslund

Masters Theses

In order to increase understanding regarding the factors contributing to student attrition at the Davenport College Career Center, a survey was undertaken to determine how those elements over which the school has control impacted its students' decisions to discontinue pursuing their educational goals. The survey of 600 non-returning students asked questions on the following attributes of the college: admissions, advising, academics, support services, and facilities. Survey recipients were divided into two categories: those students who had intended to take a full program of study and those students who had come to college to update their skills with only a few …

Adaptive Channel Equalization Techniques, Saied Razavilar

Masters Theses

Inter Symbol Interference (ISI) is a characteristic of band-limited communication channels that can severely degrade the digital communication system performance if not treated properly. Channel equalization techniques may be used to mitigate the effects of ISI in the system, thereby improving the system capacity and performance. In this thesis, the problem of Inter Symbol Interference caused by the nonlinear characteristics of band limited communication channels and adaptive equalization techniques to combat the effects of ISI are discussed. First, the analysis of ISI in a band limited communication channel using a concrete theoretical framework is presented. Next, various adaptive equalization techniques …

Thomas Jefferson And The United States Constitution: A Comparative Study Of Jefferson As Maturing Political Thinker To Jefferson The Political Operative, Thomas A. Parker

Masters Theses

The purpose of this thesis is to use historical, qualitative, and comparative methods of research in studying the life of Thomas Jefferson, his views on governance, and his impact on the highest law of our land, the United States Constitution. Thomas Jefferson's constitutional thoughts and theories evolved first as a maturing political thinker and later as a political operative on the state, national and international stage. His beliefs were shaped by many factors including Jefferson's own principles and character, his scholarship via learned men and life experiences, American and overseas events in and out of his control, titles and offices …

Fitness Landscape Analysis Of Discrete Constrained Optimization Problems, Sai Prasanna Ravichandran

Masters Theses

The exponentially large size of the solution space of typical optimization problems precludes the use of any deterministic approach to search for an optimal solution. A more efficient and efficacious approach is to use heuristic algorithms based on rules of thumb to guide the search process in the solution space. Associated with every solution in the space is a real number called fitness that signifies the quality of a solution. This space and the fitness values together form the fitness landscapes. Knowledge about the topology of these fitness landscapes is vital for any heuristic search operator to expedite the search …

The Effects Of Phonological Awareness Activities On At-Risk First Grade Readers, Kimberly L. Van Belois

Masters Theses

The purpose of this study was to look at a variety of phonological awareness studies and their impact on students with reading difficulties and to implement a program to develop student's reading abilities and look at its impact on student's knowledge of vowel and consonant recognition, vowel sounds, and sight words. Phonological awareness can be defined as one's sensitivity to, or explicit awareness of, the phonological structure of words in one's language. A number of researchers (eg., Libennan, Shankweiler, & Liberman, 1989) have concluded that adequate awareness of the phonological structure of words helps to make learning to read words …

Development Of The Curriculum For Use In A Primary Multi-Age Classroom Using A Curriculum Map, Rae Anne Besser Hansberry

Masters Theses

Curriculum maps for multi-age classes are difficult to organize. This paper explores some of the ways that curricula has been organized in the past and a method developed by Heidi Hayes Jacobs . This method differs from other mapping strategies because it starts with the state standards and benchmarks and fits the curricula into this framework. This paper also explores the concept of multi-age groupings to insure a better understanding of the history of grouping students in education, the philosophy behind multi-age, as well as some of the benefits and detractors of this concept. The process for developing a curriculum …

Improvement Of Epa Method 8330: Complete Separation Of Explosives Using A Two Phase Approach, Michael J. Lang

Masters Theses

A wide range of primary and secondary contaminants is found in environmental matrices containing explosive residues. HPLC methodology for the detection of explosive is now standardized in EPA Method 8330, and represents the most common method currently used for explosive analysis. However, co-elution of some of the analytes occurs even using method 8330. As a result, explosive analysis using HPLC have required the use of a confirmation column in an additional analysis step.

In the current work, all of the compounds in the EPA 8330 explosives list were resolved using a single HPLC separation. While the EPA 8330 HPLC conditions …

The Implementation Of Group Mentoring Between At-Risk Teenage African American Males And Successful Adult African American Men, Cornell Mathis

Masters Theses

Little research has been done to examine the implementation of group mentoring. This study of group mentoring involving at-risk teenage African American males and successful adult African American men will provide insight into group mentoring as demonstrated through interpersonal communications.

An investigation of the composite reduction provides the foundation for establishing the following definition of the group mentoring experience. The mentees are drawn to the mentors by mutual respect developed through the use of a special language. Availability leads to bonding between the mentees and mentors. The relationships are fostered by the authenticity of both individuals while producing social enlightenment …

Image Processing Based On A Fuzzy Logic Edge Detection Algorithm, Jamshid Khazaai

Masters Theses

One of the major problems in image processing is that of efficient edge detection. This is because the automated determination of an edge requires a subjective interpretation of just what the image author intended to be an edge. By training an edge determination algorithm to be sensitive to edges in a consistent manner, efficiency can be improved. This is the central idea of this thesis in which I define edge occurrences for the intensity (monochrome) images using fuzzy sets.

Edge characteristic functions are proposed for detecting edge pixels within a desired block of an (intensity and binary) image based on …

Simulation Of The Hybrid Fuzzy-Boolean Finite State Machine (Hfb-Fsm), Hamed Shakouri

Masters Theses

Several models of fuzzy finite-state automata have been proposed in the literature. One model which benefits from the existing algorithms for designing Boolean finite-state machines, has been proposed by J. L. Grantner [8]. This model, which is called Hybrid Fuzzy-Boolean Finite State Machine (HFB-FSM), along with its algorithmic design procedure, can be used for implementing dynamic linguistic systems [7,8,13]. In this thesis we have developed a simulation program for the HFB-FSM model using C++ programming language. In order to simulate a HFB-FSM model, the user provides the information defining the system's behavior. Based on the algorithm proposed in [8], the …

The Effect Of Ink Jet Coating Rheology On Screening, Burak Aksoy

Masters Theses

Ink jet coating formulations are becoming of increasing importance due to rapid expansion in digital printing. These coatings have very specific ink absorption requirements, which are fulfilled by using polyvinyl alcohol and silica as binder and pigment, respectively. These coatings have unique rheological behavior and often have problems in industry during the filtering process. In this work, an attempt was made to relate filter blocking to the rheological behavior of the coating. A series of coatings were prepared and their rheological properties characterized. The solids content and pigment selection of the coating were altered in order to adjust the coating …

Implementation Of The Graphical User Interface Of The Parint Package In Java, Gwowen Fu

Masters Theses

The graphical user interface (GUI) of the ParInt interface package provides a convenient and efficient way for users to integrate multivariate functions on a parallel system or a network.

This thesis introduces basic structure of the GUI and gives a detailed description of each class of how the classes communicate with each other and how the connection with the parallel program is made.

Factors Governing The Rate Of Appearance Of Fuels In Monitoring Wells, Bradley A. Green

Masters Theses

Delays in the appearance of free product (e.g. fuels) in groundwater monitoring wells often cause costly delays in site evaluation. Little is known about how monitoring well design and installation affect this rate of appearance. This study examined the effects of well screen open area, filter pack grain size and wettability, and well development methods on the rate of appearance and subsequent thickness of free product in wells.

Laboratory and field results indicate that free product appears faster in hydrophilic filter packs than in hydrophobic filter packs. Hydrophobic filter packs with a finer grain size than the "industry standard", seem …

Vertical Resistivity Electrode Arrays For Detecting Hydrocarbon Movement And Content In Sands, Kirt Elliott

Masters Theses

In many contamination sites where hydrocarbon is involved an accurate thickness of the contaminant can not be achieved through the most commonly used methods. The purpose of this study is to find an alternate method of determining a precise thickness and monitor the contaminant movement in conjunction with the current methods. Vertical resistivity electrode arrays were tested in a lab environment on singular probes and between probes. The arrays tested were the Wenner, dipole dipole, gradient, parallel and down-hole 3-arrays. Electrode pipes were constructed and placed into a sand tank where the hydrocarbon thickness and the water level could be …

Sm-Nd Systematics As Indicators Of Displaced Plutons: A Test In The Idaho Batholith-Boulder Batholith Region, Christine J. Brand

Masters Theses

In east-central Idaho and western Montana a 400km-long Cretaceous and Tertiary magmatic corridor extends from the Wallowa-Seven Devils terrane to the Helena Salient. Three basement provinces underlie this area: Archean basement to the east, Permo-Triassic basement to the west, and Proterozoic basement in-between. Ideally, if Cretaceous plutons were decapitated and translated eastward along thrusts over a different basement province, then the Cretaceous pluton and the in-place Tertiary pluton would show different isotopic signatures. Pluton samples from locations evenly spaced throughout the magmatic corridor were analyzed for ε⁰_Nd, ε^t_Nd, and ¹⁴⁷Sm/¹⁴³Nd model ages …

A Generic Multi-Electrode Automated/Semi-Automated Field Resistivity System, Douglas D. Werkema

Masters Theses

Geophysical field exploration using electrical resistivity typically employs the use of four electrodes which are progressively relocated to positions that differ from a few meters to hundreds of meters. Consequently, field operations are tiresome and often lead to imprecise locations of electrodes and poor data quality. This project develops an automated field resistivity system.

This automation of resistivity measurements is accomplished by using multiple sets of field electrodes, a programmable switch box, remotely controlling the acquisition instrument and digitally storing the results. Controlling the process is the Acquisition Control^©software, for Windows 95^© .The prototype switch box has …