Digital Commons Network^™

Using A Computer Simulation To Teach Science Process Skills To College Biology And Elementary Majors, Aimée T. Lee, Rosalina V. Hairston, Rachel Thames, Tonya Lawrence, Sherry S. Herron

Faculty Publications

The Lateblight computer simulation (Arneson and Ticknor, 1990) has been implemented in the general biology laboratory and the science methods course for elementary teachers to reinforce the processes of science and to allow the students to engage, explore, explain, elaborate and evaluate the methods of building concepts in science. The students develop testable hypotheses and then use the program to run experiments and collect data. In addition, they research relevant background information and subsequently present their results in a poster during class.

Load Balancing And Congestion Avoidance Routing, Konstantinos N. Kokkinos

Dissertations

Today’s high speed backbone networks are expected to support a wide range of communication-intensive applications. One of the most important issues in Quality of Service (QoS) is efficient routing. Many QoS routing solutions have been published lately for different criteria of QoS requirements and resource constraints. In this dissertation we focus on the design of regular network topologies and suggest efficient routing schemes to reduce the probability of hot spot creation in the network. Furthermore, we provide a detection of congestion mechanism that reroutes traffic to maintain balancing with small communication cost. Several theoretical results relatively to network traffic balancing …

Robust Residuals And Diagnostics In Autoregressive Time Series, Kirk W. Anderson

Dissertations

One of the goals of model diagnostics is outlier detection. In particular, we would like to use the residuals, appropriately standardized, to “flag” outliers. Hopefully, our (robust) procedure has yielded a fit that resists undue influence by outlying points, while simultaneously drawing attention to these interesting points via residual analysis. In this study we consider several different methods of standardizing the residuals resulting from autoregression. A large sample approximation for the variance of rank-based first order autoregressive time series residuals is developed. This provides studentized residuals, specific to the time series model and estimation procedure. Simulation studies are presented that …

New Statitstical Methods For The Estimation Of The Mean And Standard Deviation From Normally Distributed Censored Samples, Abou El-Makarim Abd El-Alim Aboueissa

Dissertations

The main objective of this dissertation is to estimate the mean /x and standard deviation cr of a normal population from left-censored samples. We have developed new methods for calculating estimates for the mean and standard deviation of a normal population from left-censored samples. Some of these methods based on traditional estimating procedures. A new method of obtaining the Cohen maximum likelihood estimates for fx and cr without the aid of an auxiliary table will be introduced. This new method will be used to extend Cohen table of estimating the Cohen A-parameter that is required for calculating the maximum likelihood …

Why Write?, Michele A. Medved

Digitized Theses and Dissertations (prior to 2008)

A portfolio submitted in partial fulfillment of the Requirements for the degree of Master of Arts in Professional Writing in the Department of English In the College of Humanities and Social Sciences of Kennesaw State University

Historical Changes In Mid-Water Stands Of Common Reed In The Winnebago Pool Lakes, Wisconsin, Anthony O. Gabriel, Leo R. Bodensteiner

All Faculty Scholarship for the College of the Sciences

Despite the tolerance of common reed grass to environmental extremes, mid-water stands in the Winnebago pool lakes of central Wisconsin appear to be diminishing. Formerly occupying shoreline locations, water level manipulations subsequent to dam construction beginning in the 1850's have isolated reed stands off shore. These stands have persisted but casual observations indicate that stand size has been declining. To address this perception we obtained an approximately decadal series of aerial photographs dating back to 1937 for four stands in Lake Poygan. Annual records were available for 1986–94. Using image analysis software, we determined shape and size metrics. Changes in …

2002-12-00 Newsletter, Morehead State University. Board Of Regents.

Morehead State Board of Regents Agenda Books and Meeting Minutes

No abstract provided.

Flat-State Connectivity Of Linkages Under Dihedral Motions, Greg Aloupis, Erik D. Demaine, Vida Dujmović, Jeff Erickson, Stefan Langerman, Henk Meijer, Joseph O'Rourke, Mark Overmars, Michael Soss, Ileana Streinu, Godfried T. Toussaint

Computer Science: Faculty Publications

We explore which classes of linkages have the property that each pair of their flat states - that is, their embeddings in ℝ2 without self-intersection - can be connected by a continuous dihedral motion that avoids self-intersection throughout. Dihedral motions preserve all angles between pairs of incident edges, which is most natural for protein models. Our positive results include proofs that open chains with nonacute angles are flat-state connected, as are closed orthogonal unit-length chains. Among our negative results is an example of an orthogonal graph linkage that is flat-state disconnected. Several additional results are obtained for other restrictedclasses of …

A Framework For Prognostics Reasoning, Thomas C. Clutz

Theses and Dissertations

The use of system data to make predictions about the future system state commonly known as prognostics is a rapidly developing field. Prognostics seeks to build on current diagnostic equipment capabilities for its predictive capability. Many military systems including the Joint Strike Fighter (JSF) are planning to include on-board prognostics systems to enhance system supportability and affordability. Current research efforts supporting these developments tend to focus on developing a prognostic tool for one specific system component. This dissertation research presents a comprehensive literature review of these developing research efforts. It also develops presents a mathematical model for the optimum allocation …

On Rank-Based Considerations For Generalized Linear Models And Generalized Estimating Equation Models, Diana R. Cucos

Dissertations

This study discusses rank-based robust methods for estimation of parameters and hypotheses testing in the generalized linear models (GLM) and generalized estimating equations (GEE) setting. The robust estimates are obtained by minimizing a Wilcoxon drop in dispersion function for linear or nonlinear regression models. In addition, diagnostic tools for outliers and influential observations are being developed. These models are generalizations of linear and nonlinear models. They allow for both nonlinear mean functions and heteroscedasticity of their random errors. This makes them quite useful in practice. Rank-based inference has been developed for linear models over the last thirty years. This inference …

Resolvability In Graphs, Varaporn Saenpholphat

Dissertations

The distance d (u, v ) between two vertices u and v in a connected graph G is the length of a shortest u - v path in G . For an ordered set W = { w1 , w2 , [Special characters omitted.] &cdots; , wk } of vertices in G and a vertex v of G , the code of v with respect to W is the k -vector cW (v ) = (d ( v, w1 ),d (v, w 2 ), [Special characters omitted.] &cdots; , d …

After Turning Points: Evidence Of The Adoption Of Middle School Reforms In The United States 1987-2000., Nancy Barnes Mansberger

Dissertations

The purpose of this study was to explore the adoption by U.S. middle schools of key practices recommended by the 1989 Turning Points report. Three questions were examined: (1) To what extent have the organizational practices identified by research to impact the development of "small learning communities" been adopted by U.S. middle schools? (2) To what extent do the instructional practices of U.S. middle school teachers reflect developmentally responsive or traditional/bureaucratic methods?, and (3) Do the instructional practices of U.S. middle school teachers differ between those who teach in schools with developmentally responsive organizational practices and those who teach in …

The Colorsong Prophecy: Using Gardner's Theory Of Multiple Intelligences To Develop Hero Archetypes For A Young Adult Fictional Fantasy Series Aimed At Promoting A Mythology Of Nonviolence, Danielle Selyse Shylit

Critical and Creative Thinking Capstones Collection

This synthesis explores the value and possibility of using Howard Gardner’s Multiple Intelligences Theory to inform the development of hero archetypes for use as protagonists in my original fictional fantasy series entitled The Colorsong Prophecy. These seven books, in the process of being written, are intended to provide adolescent readers with strong hero models that mirror the intellectual diversity of their own population and promote a new mythology of nonviolence that depicts nonviolent choices as mighty in their own right. I relate this literary work-in-progress to the foundational theories upon which it is based, examining the relevant literature from the …

Perceptions Of Nebraska School Leaders On The Use Of Handheld Computers: Do Handheld Computers Make A Difference?, Veronica A. Huerta

Student Work

The purpose of this study is to examine the perceptions of Nebraska school leaders on technology and particularly about the use of handheld computer technology. The data gathered and analyzed in this study will provide Nebraska school leaders with the current, data driven research to utilize in their decision making process.

The Effects Of Interdisciplinary Team Size On Student Achievement, Behavior, Attendance, And Student Perceptions About Community, James Vernon Sutfin

Student Work

This study explored the impact of interdisciplinary team size on student achievement, behavior, attendance, and perceptions about community in an affluent Midwestern suburban middle school. Interdisciplinary teams were divided up in to three-, four- and five-teacher configurations. Data were gathered through the use of the district's School Information and Management System (SIMS) as well as the School Ethical Climate Index (SECI) (Schulte et al., 2002). The dependent variables were (a) academic achievement, (b) student behavior, (c) student attendance, and (d) student perceptions about community. Independent variables were the interdisciplinary team and grade level. All four research questions were answered using …

Should Canada Enact A New Sui Generis Database Right? , C.D. Freedman

Fordham Intellectual Property, Media and Entertainment Law Journal

No abstract provided.

The Patentability Of Transgenic Animals In The United States Of America And The European Union: A Proposal For Harmonization, Jerzy Koopman

Fordham Intellectual Property, Media and Entertainment Law Journal

No abstract provided.

Assessment Of Human Alveolar Bone Density By Using Volumetric Ct Machine, Prasit Aranyarachkul

Loma Linda University Electronic Theses, Dissertations & Projects

This study evaluated bone density in designated implants sites using cone-beam computed tomography (CBCT) and compared the measurements to those of quantitative computed tomography (QCT) and subjective bone density evaluation. Sixty-two designated implant sites in 9 human cadavers jaws were used. Indicator rods, 2 mm in diameter, were placed in all sites. CT images representing 1 mm bucco-lingual slices immediately mesial and distal to the rods were selected for density evaluations. Bone density in Hounsfield units (HU) was assessed in a standardized implant area superimposed on the images, and also subjectively evaluated by 2 independent examiners using the Lekholm & …

Historical Development Of The Linear Nonthreshold Dose-Response Model As Applied To Radiation, Ronald L. Kathren

The University of New Hampshire Law Review

[Excerpt] "Despite the nearly universal adoption of the linear nonthreshold dose response model (LNT) as the primary basis for radiation protection standards for the past half century, the LNT remains highly controversial and a contentious topic of discussion among health physicists, radiation biologists, and other radiological scientists. Indeed, it has been pointed out that the LNT has assumed the status of a paradigm, synonymous with an ideal, standard, or paragon or perhaps to some, a sacred cow. Reduced to its very basics, the LNT postulates that every increment of ionizing radiation dose, however small, carries with it a commensurate increase …

A Test Of Factor Analysis As A Validation Procedure For Physician Certification Examinations, Jeffrey D. Greene

Dissertations

Two physician certification examinations from different medical specialties were investigated. The purpose of the study was twofold: 1) to determine the similarities between the factor structure of the examinations and their respective tables of specifications; and 2) to demonstrate the relative efficacy of factor analysis in differentiating the structure between two related but dissimilar domains of information. Specialty A is a homogeneous discipline focused on a relatively narrow concentration of organs, body systems and anatomy. This examination contained 309 items. There were 845 cases available for analysis. Specialty B is a heterogeneous area of specialty concerned with numerous areas of …

Perception Of Gtas About Their Graduate Teaching Experiences: The Effects Of Pedagogical Support/Mentoring, Bruce Henry Emmel

Theses and Dissertations

This study sought to describe the outcome of a semester long course of study presented to graduate teaching assistants in several disciplines. This study was important because many departments offer little or no specific training for their GTAs and, as a result, many of them find themselves confused and frustrated in their duties.

For this research, an experienced professor of long tenure offered a sixteen-week course in “College Teaching” designed specifically for graduate teaching assistants from a variety of disciplines. All of these GTAs volunteered to participate and were offered one graduate credit for their participation.

The research question I …

Synthetic And Computational Studies On Polycyclic Aromatic Hydrocarbon Derivatives, Nucleoside Analogs And Peptides, Felix Nyuangem Ngassa

Theses and Dissertations

In recent years, the understanding of the structure and functions of biological macromolecules has advanced rapidly, the result of which is a better mechanistic understanding of many biological processes. As an outgrowth of this understanding, organic molecules that react with biological macromolecules (DNA) or adopt conformations responsible for specific functions in biological macromolecules (peptides and proteins) have been synthesized and computational modeling studies performed. Polycyclic aromatic hydrocarbons (PAHs) and β-peptides are among synthetic organic compounds known to interact with natural biological macromolecules. This interaction may affect the specific biological functions of the biomacromolecules. A variety of synthetic methodologies have been …

University Reporter - Vol. 07, No. 04 - December 2002, University Of Massachusetts Boston

1996-2009, University Reporter

No abstract provided.

University Reporter - Vol. 07, No. 03.2 (Special Edition) - December 2002, University Of Massachusetts Boston

1996-2009, University Reporter

No abstract provided.

Superconvergent Perturbation Theory For An Anharmonic Oscillator, Gregory S. Tschumper, Mark R. Hoffmann

Chemistry Faculty Research & Creative Works

A computationally facile super convergent perturbation theory for the energies and wavefunctions of the bound states of one-dimensional anharmonic oscillators is suggested. The proposed approach uses a Kolmogorov repartitioning of the Hamiltonian with perturbative order. The unperturbed and perturbed parts of the Hamiltonian are defined in terms of projections in Hilbert space, which allows for zero-order wavefunctions that are linear combinations of basic functions. The method is demonstrated on quartic anharmonic oscillators using a basis of generalized coherent states and, in contrast to usual perturbation theories, converges absolutely. Moreover, the method is shown to converge for excited states, and it …

An Efficient Burst-Arrival And Batch- Departure Algoriths For Round-Robin Service, Jorge R. Ramos, Janche Sang

Department of Computer Science Technical Reports

No abstract provided.

Computer Sciences At Purdue University 1962 To 2000, John R. Rice, Saul Rosen

Department of Computer Science Technical Reports

No abstract provided.

Performance Of Multi-Dimensional Space- Filling Curves, Mohamed F. Mokbel, Walid G. Aref, Ibrahim Kamel

Department of Computer Science Technical Reports

No abstract provided.

Periodicity Detection In Time Series Databases, Mohamed G. Elfeky, Walid G. Aref, Mikhail J. Atallah

Department of Computer Science Technical Reports

No abstract provided.

Multi-Dimenstional Traversals For Normalization Constants, Jorge R. Ramos, Vernon J. Rego

Department of Computer Science Technical Reports

No abstract provided.