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Field Methodology For The Determination Of The Prevalence Of Giardia Cysts And Cryptosporidium Oocysts Drinking Water And Its Association To The Development Of Diarrheal Disease In The Transylvania Region Of Romania, Rick J. Bauer

Dissertations and Theses @ UNI

The purpose of this study was to analyze the drinking water of 69 individuals living in the Transylvania region of Romania for the presence of Giardia cysts and Cryptosporidium oocysts. The ultimate objective was to determine if a correlation exists between the presence and concentrations of these two protozoa and the reported frequency and average severity of diarrheal disease in the study group members.

To accomplish this goal, a collection, emulsion, concentration, labeling, and identification method had to be developed that could operate effectively in an international field setting. The protocol selected included the collection of samples using a compressed …

Growth Rate Variability And Lipofuscin Accumulation Rates In The Blue Crab Callinectes Sapidus, Se-Jong Ju, David H. Secor, H. Rodger Harvey

OES Faculty Publications

To better understand growth and age-pigment (lipofuscin) accumulation rates of the blue crab Callinectes sapidus under natural conditions, juveniles (33 to 94 mm carapace width) were reared in outdoor ponds for over 1 yr. Growth rates, measured by carapace width, during summer and fall exceeded all those reported in the literature; the initial carapace width of 59 ± 14 mm (mean ± SD) increased to 164 ± 15 mm within a 3 mo period. No growth occurred during winter months (November to April) at low water temperatures. Growth rates of crabs in ponds were substantially higher (von Bertalanffy growth parameter …

The Effect Of Spectral Composition On The Photochemical Production Of Hydrogen Peroxide In Lake Water, Andrea Y. L. Wong, George T. F. Wong

OES Faculty Publications

Hydrogen peroxide was produced when samples of lake water were exposed to direct or filtered sunlight in which UV or UV(B+C) light was selectively removed. In all cases, the concentration of hydrogen peroxide increased linearly with time-integrated irradiance. While both visible and UV light can induce the formation of hydrogen peroxide, the contribution from the latter was disproportionately large as it was responsible for about two-thirds of the formation of hydrogen peroxide. Among the UV lights, the contributions from UV-A and UV-(B+C) light were 70% and 30% respectively. The contribution from UV-A light was equivalent to about one half of …

Incorporating Window-Based Passage-Level Evidence In Document Retrieval, Wensi Xi, Richard Xu-Rong, Christopher Soo Guan Khoo, Ee Peng Lim

Research Collection School Of Computing and Information Systems

This study investigated whether document retrieval can be improved if documents are divided into smaller sub-documents or passages and the retrieval score for these passages are incorporated in the final retrieval score for the whole document. The documents were segmented by sliding a window of a certain size across the document and extracting the words displayed each time the window stopped. A retrieval score was calculated for each of the passages extracted and the highest score obtained by a passage of that size was taken as the document’s passage-level score for that window size. A range of window sizes was …

What Principals Do To Minimize The Negative Effects Of The Incompetent Teacher, Georgia S. Collins

College of Graduate Studies: Theses & Dissertations (1964–2006)

Principals and teachers are being held increasingly accountable for student achievement. Every effort should be made to increase the chances of student success in school and in the global community. In this study, the researcher examined the perceptions of principals in the state of Georgia with regard to incompetent teachers, which according to the professional literature are a deterrent to student achievement. As previous research and literature have shown, incompetent teachers remain in school systems despite efforts of building-level administrators to dismiss them. The main focus of this study was to determine the means of minimizing the negative effect of …

Faculty Senate Librarian's Report-2001, Georgia Southern University

Faculty Senate: Librarian's Reports

No abstract provided.

Faculty Handbook, Georgia Southern University

Faculty Handbooks

Faculty Handbook for Georgia Southern University for the 2001-2002 academic year. The Faculty Handbook is https://digitalcommons.georgiasouthern.edu/faculty-senate-index/650/" target="_blank">published online by the Office of the Vice President for Academic Affairs and archived by the University Libraries in Georgia Southern Commons.

Simulation Methodologies For Political Scientists, Kenneth Benoit

Research Collection School of Social Sciences

In this brief article I identify and characterize the variety of simulation methodologies relevant to political science research. Having identified them, I then recount a light-hearted tale of one successful application of a computer simulation to a real world problem of enormous significance. Extending the discussion to other examples, I discuss some of the main issues and benefits in simulation models for political science. Finally, I identify some software tools and additional resources for those who would like to learn more about using simulation methods for their own work.

2001-2002 Undergraduate Catalog, Armstrong Atlantic State University

Armstrong Office of the Registrar: Undergraduate Catalogs (Archived)

No abstract provided.

Nature Writing, American Literature, And The Idea Of Community: A Conversation With Barry Lopez, David Thomas Sumner

Faculty Publications

This interview with Barry Lopez is part of a series of conversations with contemporary western writers about the ethical and cultural implications of nature writing.

Student Expectations And Satisfaction Levels In Private Career Colleges, Tammi Huggins

All-Inclusive List of Electronic Theses and Dissertations

The purpose of this study was to examine students' expectations of and satisfaction with academic experiences provided by private career colleges. Trends in student expectations and satisfaction levels at private career colleges were identified using the USA Group Noel-Levitz Student Satisfaction Inventory (SSI) database for private career colleges for the years 1997, 1998 and 1999. In addition, differences in perceived importance and satisfaction levels based on gender, age, race/ethnicity, grade point average (GPA), and employment status were identified. Means and standard deviations were calculated in each of the categories by year for all 21,409 students to determine both students' ranks …

The Psychological And Social Characteristics Among College Students Who Binge Drink, Mary Elizabeth Grigar

All-Inclusive List of Electronic Theses and Dissertations

This study examined whether personality type and social variables predict: (a) binge drinking behavior, and (b) alcohol related consequences. Two hundred thirty-seven first year students from a private, Midwest, engineering college were administered the Myers Briggs Type Indicator, a Student Information Questionnaire, a Drinking Questionnaire, and the Young Adult Alcohol Problems Screening Test. Binge drinking was defined as the successive consumption of four or more drinks for women and five or more drinks for men in one sitting. Logistical and multiple regression analyses were performed. The judgment-perception personality type predicted binge drinking behavior. The social variables which predicted binge drinkers …

Cognitive, Academic, And Behavioral Differences Between Children With Different Subtypes Of Adhd, Gregory Scott Howell

All-Inclusive List of Electronic Theses and Dissertations

This study evaluated cognitive, academic, and behavioral differences among clinic-referred children diagnosed with different subtypes of Attention-Deficit/Hyperactivity Disorder (ADHD). Children diagnosed with ADHD Predominantly Inattentive Type (ADHD-I), children diagnosed with ADHD Combined Type (ADHD-C), children in a clinical control group, and children in a nonreferred control group were compared on measures of cognitive ability, academic achievement, and behavior. It was hypothesized that the nonreferred control group would outperform the other groups on some of these measures. It was also hypothesized that few of these measures would distinguish among the ADHD groups. The results showed that there were no significant differences …

Introducing Integrated Performance Measurement Into Small And Medium Sized Enterprises, Melanie Hudson

Plymouth Business School Theses

The thesis extends current knowledge and understanding of integrated performance measurement (PM) development into the context of small and medium sized enterprises (SMEs). The research builds on existing knowledge of integrated PM development approaches and identifies the context-specific factors which affect its introduction into SMEs. These are used to design, develop and validate a new, continuous improvement based approach for the development of integrated PM systems, which is specifically designed for use in SMEs. First, a conceptual model of criteria for integrated PM development is synthesised from the literature and the characteristics of SMEs are established. An evaluation of current …

A Framework For Performance And Value Assessment Of E-Business Systems In Corporate Travel Distribution, A.M. Chircu, Robert J. Kauffman

Research Collection School Of Computing and Information Systems

This chapter proposes and illustrates a framework that the authors call the value life cycle for e-commerce systems. Based on recent research results that relate to technology investments in the corporate travel industry and related theoretical and empirical perspectives, the authors lay out the corporate travel e-commerce system solutions value life cycle. The perspective involves estimating the maximum value that that an organization can obtain by implementing an e-commerce system in a specific industry and competitive environment. It also considers multiple factors that act as value contingencies for the implementation process. These create barriers to value accrual and to …

Children's Song-Makers As Messengers Of Hope: Participatory Research With Implications For Teacher Educators, Peter J. Baird

Doctoral Dissertations

Pete Seeger, Ella Jenkins, Suni Paz and six other leading children's musicians in the U.S contributed their experience to this study about the crucial role of music and singing for social justice in children's lives and its shrinking presence in U.S. pre-school and elementary schools. The study built its theoretical framework on arts and music education, transformative education, and folk and socially conscious children's music. Participatory research, based on the revolutionary education theories of Paulo Freire, guided the dialogues with the participants. These activist singer-songwriters were asked how they define social justice, how they involve children in singing, and what …

External Memory Algorithms For Factoring Sparse Matrices, Florin Dobrian

Computer Science Theses & Dissertations

We consider the factorization of sparse symmetric matrices in the context of a two-layer storage system: disk/core. When the core is sufficiently large the factorization can be performed in-core. In this case we must read the input, compute, and write the output, in this sequence. On the other hand, when the core is not large enough, the factorization becomes out-of-core, which means that data movement and computation must be interleaved.

We identify two major out-of-core factorization scenarios: read-once/write-once (R1/W1) and read-many/write-many (RM/WM). The former requires minimum traffic, exactly as much as the in-core factorization: reading the input and writing the …

New Sequential And Scalable Parallel Algorithms For Incomplete Factor Preconditioning, David A. Hysom

Computer Science Theses & Dissertations

The solution of large, sparse, linear systems of equations Ax = b is an important kernel, and the dominant term with regard to execution time, in many applications in scientific computing. The large size of the systems of equations being solved currently (millions of unknowns and equations) requires iterative solvers on parallel computers. Preconditioning, which is the process of translating a linear system into a related system that is easier to solve, is widely used to reduce solution time and is sometimes required to ensure convergence. Level-based preconditioning (ILU(ℓ)) has long been used in serial contexts and is widely recognized …

Nonlinear Response And Fatigue Estimation Of Surface Panels To White And Non-White Gaussian Random Excitations, Jean-Michel Dhainaut

Mechanical & Aerospace Engineering Theses & Dissertations

In stochastic structural dynamics, the majority of analyses have dealt with linear structures under stationary, Gaussian, and band-limited white noise excitations. Although these simplifying assumptions may be justified, in many processes experimental data have shown quite frequently the non-stationary and non-Gaussian characteristics of the loads. An efficient finite element modal formulation has recently been developed to extend the analysis to nonlinear structural responses. Laminated plate theory and von Karman large displacement relations are used to derive the nonlinear equations of motion for an arbitrarily laminated composite panel subjected to combined acoustic and thermal loads. The nonlinear equations of motion in …

Mathematical Models Of Quiescent Solar Prominences, Iain Mckaig

Mathematics & Statistics Theses & Dissertations

Magnetic fields in the solar atmosphere suspend and insulate dense regions of cool plasma known as prominences. The convection zone may be the mechanism that both generates and expels this magnetic flux through the photosphere in order to make these formations possible. The connection is examined here by modeling the convection zone as both one-dimensional, then more realistically, two-dimensional.

First a Dirichlet problem on a semi-infinite strip is solved using conformal mapping and the method of images. The base of the strip represents the photosphere where a current distribution can be given as a boundary condition, and the strip extends …

Post Doi Moi Urban Higher Education In The Socialist Republic Of Vietnam: The Case Of Hong Duc University, Jeanne Beth Natali

Theses and Dissertations in Urban Services - Urban Education

The Socialist Republic of Vietnam is experiencing unprecedented peace and prosperity. Although Vietnam's war-damaged economy continued to decline for ten years after hostilities ended in 1975, everything changed in 1986 when doi moi, a moderate economic reform program, was introduced. Doi moi put enormous stress on higher education, whose function in the past had been to train workers for the state sector. Suddenly, higher education had to respond to the changing needs of Vietnamese society.

A 1992 educational sector study found that higher education was irrelevant to the needs of the transitional Vietnamese society. Universities were too small and …

Coastal Ocean Morphodynamics And The Resulting Erosion And Deposition: An Analytical Approach, Shejun Fan

OES Theses and Dissertations

Coastal ocean morphodynamics is the study of the morphological change of the coastal ocean system. Environmental conditions, such as climatic and geological controls, are exogenous inputs of the system, which are responsible for geographic variation among coastal oceans. In the coastal ocean system, coastal morphological changes are the results of a series of morphodynamical processes. In this treatise, quantitative, dynamical sedimentary models are developed to provide an analytical understanding of morphodynamical processes in coastal ocean environments. These dynamical sedimentary models numerically simulate the sedimentary processes over a range of time scales from an event time scale, based on the fundamental …

A Study Of The Effects Of Constructivist Based Vs. Traditional Direct Instruction On 8th Grade Science Comprehension, Clair T. Berube

Theses and Dissertations in Urban Services - Urban Education

Studies conducted nationwide over the past several decades point consistently to the evidence that American school children lag behind several other countries in science scores. Problems arise from this dilemma, including the question of the ability of our youngsters to compete nationally and globally in the sciences as adults. Current research in this area of scores currently studies mostly mathematics. The few studies conducted concerning science mainly highlight students in other countries and neglects minorities and females regarding outcomes.

By contrast, this study investigated the effects of teacher types (also defined as teaching styles or classroom orientation) on student outcomes …

The Relationship Between Academic Self-Concept And The Achievement Expectancies On The Academic Achievement And Persistence Rate Of African-American Freshmen Students, Ira Falls Iii

Theses and Dissertations in Urban Services - Urban Education

This study addressed the use of certain noncognitive variables and their relationship to the academic achievement and persistence rate of African-American freshmen students attending a large, predominately white institution. Academic achievement was defined as a student's cumulative college grade point average and cumulative credits earned at the end of the freshmen year of study. Persistence rate was defined as the number of freshmen who enrolled compared to the percentage of those who re-enrolled for the Fall semester of their sophomore year. Moreover, the purpose of this study was to identify selected variables that are associated with increased African-American academic achievement …

Perceptual Cues And Subjective Organization In A Virtual Information Workspace, Todd M. Eischeid

Psychology Theses & Dissertations

The key to effectively using the immense body of data on the Internet is an efficient method of organizing relevant information. Researchers and designers are beginning to promote the advantages of three-dimensional (3D) models of information storage and retrieval; however, the potential benefits of perceptual depth cues have not been systematically studied.

The present study used a computer task to examine the effectiveness of three types of virtual desktops. A two-dimensional (2D) virtual desktop display, lacking in the cues that give the illusion of depth, was compared to two different 3D virtual desktops, both of which used perceptual cues to …

Tidal And Subtidal Lateral Structures Of Density And Velocity In The Chesapeake Bay Entrance, Austreberto Cristobal Reyes-Hernandez

OES Theses and Dissertations

Hydrographic and velocity data collected along the Chesapeake Bay Entrance during seven 25-hours cruises centered around neap or spring tides, were used to assess the fortnightly variability in the transverse structure of the tidal and subtidal density and velocity fields. Amplitude and phase of the semidiurnal and diurnal harmonics reflected the influence of bathymetry, buoyancy conditions and fortnightly variability. Tidal amplitudes were almost twice as large in springs than in neaps. Both Chesapeake and North Channels had similar along-channel amplitudes, which suggested a higher vertically integrated mixing energy in North Channel. Tidal velocity convergences were more intense for springs than …

The Relationship Between Workplace Absenteeism And Alcohol Use: A Day-To-Day Examination, Susan Kay Mcfarlin

Psychology Theses & Dissertations

This investigation examined the conditional day-to-day relationship between alcohol use and workplace absenteeism among participants (N = 302) employed full-time in one of three large companies located in the northeastern U.S. Semi-structured interviews were used to gather information from employees on their daily use of alcohol and other drugs during a 1-month period. Employees' absenteeism and work injury data during the same target time period were gathered from personnel files residing in the companies' human resources departments. The presence of a current alcohol use disorder also was determined. The following primary hypotheses were tested: (a) there would be a …

Finite Element Analysis And Active Control For Nonlinear Flutter Of Composite Panels Under Yawed Supersonic Flow, Khaled Abdel-Motagaly

Mechanical & Aerospace Engineering Theses & Dissertations

A coupled structural-electrical modal finite element formulation for composite panels with integrated piezoelectric sensors and actuators is presented for nonlinear panel flutter suppression under yawed supersonic flow. The first-order shear deformation theory for laminated composite plates, the von Karman nonlinear strain-displacement relations for large deflection response, the linear piezoelectricity constitutive relations, and the first-order piston theory of aerodynamics are employed. Nonlinear equations of motion are derived using the three-node triangular MIN3 plate element. Additional electrical degrees of freedom are introduced to model piezoelectric sensors and actuators. The system equations of motion are transformed and reduced to a set of nonlinear …

An Integrated Risk Analysis Methodology In A Multidisciplinary Design Environment, Katrina R. Hampton

Engineering Management & Systems Engineering Theses & Dissertations

Design of complex, one-of-a-kind systems, such as space transportation systems, is characterized by high uncertainty and, consequently, high risk. It is necessary to account for these uncertainties in the design process to produce systems that are more reliable. Systems designed by including uncertainties and managing them, as well, are more robust and less prone to poor operations as a result of parameter variability.

The quantification, analysis and mitigation of uncertainties are challenging tasks as many systems lack historical data. In such an environment, risk or uncertainty quantification becomes subjective because input data is based on professional judgment. Additionally, there are …

The Supreme Court In Real Time: Haste, Waste, And Bush V. Gore, Michael Herz

Articles

No abstract provided.