Digital Commons Network^™

Evaluation Of Cocoa- And Coffee-Derived Methylxanthines As Toxicants For The Control Of Pest Coyotes, John J. Johnston

United States Department of Agriculture Wildlife Services: Staff Publications

Methylxanthines were quantified in coffee, tea, and chocolate products. Tarajuilie tea from India, cocoa powder, and cocoa nibs contained the highest levels of methylxanthines. Theobromine, caffeine, and theophylline combined in the ratios observed in tea and chocolate were ingested by coyotes. Although both mixtures induced acute toxicity, the symptoms accompanying the chocolate methylxanthine mimic were preferable. Manipulation of the ratios of methylxanthines in the chocolate mimic led to the identification of a 5:1 theobromine/caffeine mixture as a promising coyote toxicant. This mixture was then administered to coyotes using the coyote lure operative device (CLOD). Mortality occurred in every coyote that …

Probabilistic Model For Estimating Field Mortality Of Target And Non-Target Bird Populations When Simultaneously Exposed To Avicide Bait, John J. Johnston, Melvin J. Holmes, Andy Hart, Dennis J. Kohler, Randal S. Stahl

United States Department of Agriculture Wildlife Services: Staff Publications

A probabilisticmodel was developed to estimate target and non-target avian mortality associated with the application of the avicide CPTH (3-chloro-p-toluidine hydrochloride) to minimize sprouting rice damage in the southern USA. CPTH exposures for individual birds were predicted by random sampling from species-specific non-parametric distributions of bait seed consumption and CPTH residues detected on individual bait seeds. Mortality was predicted from the species-specific exposure versus mortality relationship. Individual variations in this response were captured in the model by Monte Carlo sampling from species-specific distributions of slopes and median toxicity values (LD50) for each bird. The model was used to simultaneously predict …

Avian Use Of Commercial Sunflower And Grain Crops Compared To Usda Wildlife Conservation Sunflower Plots In North Dakota., Heath M. Hagy, George M. Linz, William J. Bleier

United States Department of Agriculture Wildlife Services: Staff Publications

North Dakota and South Dakota produce about 70% of the sunflower grown in the United States. Blackbird depredation, particularly in the Prairie Pothole Region (PPR), can be a major problem that results in some producers abandoning sunflower. Reduced acreage of an otherwise profitable crop is important economically and might harm migratory bird populations relying on the shrub-like habitat in sunflower fields for food and cover. In 2004 in an effort to reduce blackbird damage, USDA Wildlife Services provided funds to growers to plant Wildlife Conservation Sunflower Plots (WCSP). Growers were instructed to plant 8-ha units of oilseed sunflower near shelterbelts …

Epizootiology Of Sin Nombre And El Moro Canyon Hantaviruses, Southeastern Colorado, 1995–2000, Charles H. Calisher, J. Jeffrey Root, James N. Mills, Joan E. Rowe, Serena A. Reeder, Emily S. Jentes, Kent Wagoner, Barry J. Beaty

United States Department of Agriculture Wildlife Services: Staff Publications

Sin Nombre virus (SNV) is an etiologic agent of hantavirus pulmonary syndrome. To better understand the natural history of this virus we studied population dynamics and temporal pattern of infection of its rodent hosts in southeastern Colorado (USA) from 1995 to 2000. We present evidence for the presence of two hantaviruses, SNV in deer mice (Peromyscus maniculatus) and El Moro Canyon virus in western harvest mice (Reithrodontomys megalotis), at our study sites. Sin Nombre virus appeared only sporadically in deer mouse populations; overall prevalence of antibody to SNV was 2.6%. El Moro Canyon virus was enzootic: …

Population Dynamics Of A Diverse Rodent Assemblage In Mixed Grass-Shrub Habitat, Southeastern Colorado, 1995–2000, Charles H. Calisher, James N. Mills, William P. Sweeney, J. Jeffrey Root, Serena A. Reeder, Emily S. Jentes, Kent Wagoner, Barry J. Beaty

United States Department of Agriculture Wildlife Services: Staff Publications

We followed seasonal and year-to-year population dynamics for a diverse rodent assemblage in a short-grass prairie ecosystem in southeastern Colorado (USA) for 6 yr. We captured 2,798 individual rodents (range, one to 812 individuals per species) belonging to 19 species. The two most common species, deer mice (Peromyscus maniculatus) and western harvest mice (Reithrodontomys megalotis), generally had population peaks in winter and nadirs in summer; several other murid species demonstrated autumn peaks and spring nadirs; heteromyids were infrequently captured in winter, and populations generally peaked in summer or autumn. Interannual trends indicated an interactive effect between …

Reflections On Diversity, William Murray Tabb

Faculty Articles

No abstract provided.

In Teachers' Hands: Effective Literacy Teaching Practices In The Early Years Of Schooling, William Louden, Mary Rohl, Caroline Barratt Pugh, Claire Brown, Trevor Cairney, Jess Elderfield, Helen House, Marion Meiers, Judith Rivalland, Ken Rowe

Monitoring Learning

This project investigated the link between children’s growth in English literacy in the early years of schooling and their teachers’ classroom teaching practices. Using the LLANS literacy assessment tasks, 2000 children from every state and territory were assessed at the beginning and end of their first or second year at school. The teaching practices used by teachers whose students made most progress were explored. The effective teachers used a wide repertoire and demonstrated key teaching practices with greater consistency, skill and subtlety.

Frontier Missionary: Felix De Andreis, 1778-1820: Correspondence And Historical Writings, Felix De Andreis, John E. Rybolt, C.M., Nathaniel Michaud

Vincentian Digital Books

A chronicle of the life and journey of the Vincentian missionary Felix De Andreis, in his own words. From his native Italy to the far reaches of frontier America. …this volume documents in detail the arrival of the Vincentians in the United States and paints a vivid picture of a country from its infancy.

The Feeling Of Difference: Minority Faculty Experience In Academe, Dan K. Hibbler Ph.D.

School of Continuing and Professional Studies Faculty and Staff Works

No abstract provided.

Fibonacci And Lucas Series With Elliptic Functions, Tuanh Gia Nguyen

Master's Theses

No abstract provided.

A Numerical Method For Solving Double Integral Equations, Afshin Tiraie

Master's Theses

No abstract provided.

Inductive Reasoning In The Algebra Classroom, Mihad Mahmoud Mourad

Master's Theses

No abstract provided.

Fermat Numbers : Historical View With Applications Related To Fermat Primes, Faun C. Maddux

Master's Theses

No abstract provided.

Effects Of Ultrasonic Scaling And Hand-Activated Scaling On Tactile Sensitivity In Dental Hygiene Students, Danielle L. Ryan, Michele Darby, Susan L. Tolle, Deborah Bauman, Dayanand Naik

Dental Hygiene Faculty Publications

Purpose. This study was conducted to determine if tactile sensitivity varies in dental hygiene students who use the ultrasonic scaler, as compared to those who scale with hand-activated instruments.

Methods. A two-group, randomized subjects, pretest-posttest design was carried out mid-semester for five weeks on 40 first-year dental hygiene students who met the inclusion criteria of this study and who agreed to participate. A convenience sample of 40 consenting, first-year dental hygiene students were randomly assigned to one of two groups (experimental or control). After establishing a baseline tactile sensitivity score with the Vibratory Sensory Analyzer (VSA), experimental group subjects used …

2005-00-00 Faculty Handbook, Morehead State University. Faculty Senate.

Faculty Senate Records

Faculty Handbook believed to have been revised between 2002 and 2005.

Evaluation Of Errors In National Energy Forecasts, Denys Sakva

Theses

Energy forecasts are widely used by the U.S. government, politicians, think tanks, and utility companies. While short-term forecasts were reasonably accurate, medium and long-range forecasts have almost always been highly erroneous. In the U.S. many energy policy decisions are driven by Annual Energy Outlook (AEO) forecasts prepared by Energy Information Association (EIA). This thesis evaluates accuracy of AEO reports from 1982 to 2003. Parameters evaluated are: total energy consumption, energy consumption by sector, sector specific parameters, and major model assumptions. Error decomposition and regression analysis are used to appraise accuracy of forecasts. I found that often underlying parameters used to …

An Analysis Of The Social Support Network Of Gay Men Living With Hiv, Bridget Roberts-Pittman

All-Inclusive List of Electronic Theses and Dissertations

This study examined the social support networks of gay men living with HIV. This study represents a unique detailing of the specific members of their social support networks. Eighty-five participants completed the Social Support Questionnaire (Wright, 1995) initially and at 6-month intervals for a 2-year period. The participants were divided into 3 groups defined by HIV status: (a) asymptomatic; (b) symptomatic; and (c) AIDS. Seven participants were randomly selected from each group, resulting in the sample of 21 participants with 238 different individuals within the networks. Networks were examined in terms of stability of the members within the specific networks. …

Variables That Predict Success In Mathematics For Females In Highereducation: An Analysis Of Quantitative And Qualitative Predictors, Dottie L. King

All-Inclusive List of Electronic Theses and Dissertations

Female students in higherEducation do not pursue high-level mathematics courses in the same proportion as males and this creates lessened opportunities for them. This mixed-methods study investigated attitudes as well as achievement factors that encourage or inhibit success for female students in mathematics. Mathematics SAT/ACT scores and high school courses of first-year students at a private women's college in the Midwest were used as achievement data; seven of the Fennema-Sherman scales provided attitudinal data. Multiple regression techniques were used to determine whether attitudinal or achievement variables best predict success and to create a model with the first college-level mathematics grade …

Elgamal-Type Signature Schemes In Modular Arithmetic And Galois Fields, Gerard Nealon

Theses

A digital signature is like a handwritten signature for a file, such that it ensures the identity of the person responsible for the file and prevents any unauthorized changes to the original file. Digital signatures use the same technology as most public key cryptosystems in which there is a public and private key. Most mathematical operations are done over a field Zp where p is some large prime. It is possible to do the same operations over other finite fields. My project explains and studies the different finite fields that can be used as well as ways to implement and …

Gross Margins Guide 2005 Western Australia, Allan Herbert

Farm Systems and Economics published reports

The Western Australian Department of Agriculture has prepared this 2005 booklet with the following aim:

To provide budgeting information for farmers, agribusiness, and other students of agriculture to enhance understanding and more informed decision making.

It builds on a previous similar booklet - "Gross Margins Guide 2003" - which was produced in 2002 with Commonwealth Bank sponsorship. 2,500 copies of that booklet were produced and gained wide readership. Gross margins for broad area agriculture had not been published by the Department for the previous 1 O years. Feedback and further requests suggested that an update was necessary - hence this …

Gas Plume Species Identification In Lwir Hyperspectral Imagery By Regression Analyses, David Pogorzala

Theses

The goal of this research was to develop an algorithm for identifying the constituent gases in stack releases. At the heart of the algorithm is a stepwise linear regression technique that only includes a basis vector in the model if it contributes significantly to the fit. This significance is calculated by an F-statistic. Issues such as atmospheric compensation, gas absorption and emission, background modeling, and fitting a linear regression to a non-linear radiance model were addressed in order to generate the matrix of basis vectors. Synthetic imagery generated by the DIRISG model were used as test cases. Results show that …

Analytical Investigations Of Modified Active Remote Dynamic Vibration Absorbers, Piyes Srungboonmee

Theses

This thesis investigates the performance of proposed modified Active Remote Dynamic Absorber (ARDA) systems. The modification is intended to improve the practicability of the previously proposed ARDA technique. The current ARDA concept utilizes an absorber system identical to the primary system (the system whose vibration is to be controlled) and two voltage amplifiers. The modification to the current ARDA system employs one amplifier only and a smaller absorber system. The mathematical model of the modified ARDA systems is developed based on a finite element approach. The developed mathematical model is programmed and solved using Maple. The program is validated by …

Novel Polyimides Based On 2,2-Bis(3-Amino-4-Hydroxyphenyl)Hexafluoropropane, 4,4'- (Hexafluoroisopropylidene)Diphthalic Anhydride, And Mellitic Acid Dianhydride, And Their Nlo Pendent Polymers, Eugene Galperin

Theses

Not included.

Generation Of A Combined Dataset Of Simulated Radar And Electro-Optical Imagery, Nancy L. Baccheschi

Theses

In the world of remote sensing there exist radar sensors and EO/IR sensors, both of which carry with them unique information useful to the imaging community. Radar has the capability of imaging through all types of weather, day or night. EO/IR produces radiance maps and frequently images at much finer resolution than radar. While each of these systems is valuable to imaging, there exists unknown territory in the imaging community as to the value added in combining the best of both these worlds. This work will begin to explore the challenges in simulating a scene in both a radar tool …

A Process Capability Index For Three-Dimensional Data With Circular Or Ellipsoidal Tolerances., Veljko Fotak

Theses

We discuss the estimation of a process capability index for three-dimensional data. Initially, we focus on the case in which the engineering tolerance associated with the measurements is a sphere. Then, we extend the discussion to the more general case in which the engineering tolerance is ellipsoidal. In both cases, we develop summary measures for repeatability and reproducibility, to be used in the context of a process capability index.

In the spherical tolerance case we define summary measures, where each measure is based on the diameter of a sphere that leads to a pre-specified capture rate (we will use here …

Low Frequency Noise Modeling In Single- And Double-Gate Mosfets, Shailesh S. Rai

Theses

The Flicker or 1// noise dominates the noise spectrum at low frequency. A serious concern for MOSFETs for circuit application is much higher flicker (1//) noise because of the heterogeneous interface between silicon (Si) and silicon dioxide (Si02). Very high intrinsic flicker noise of CMOS transistors becomes a drawback for low-Intermediate Frequency (IF) or direct-conversion architectures. In spite of extensive research and efforts to understand the low-frequency noise origin in semiconductor devices, there exists no unique theory to explain the low-frequency noise generation mechanism. Flicker noise in MOSFETs is usually perceived to be caused by carrier density fluctuations, which is …

Modeling Multiple Scattering And Absorption For A Differential Absorption Lidar System, Daniel D. Blevins

Theses

The Digital Image and Remote Sensing Image Generation (DIRSIG) model has been developed and utilized to support research at the Rochester Institute of Technology (RIT) for over a decade. The model is an established, first-principles-based scene simulation tool that has been focused on passive multi- and hyper-spectral sensing from the visible to long wave infrared (0.4 to 14 pm). Leveraging photon mapping techniques utilized by the computer graphics community, a first-principles-based elastic Light Detection and Ranging (LIDAR) model was incorporated into the passive radiometry framework so that the model calculates arbitrary, time-gated photon counts at the sensor for atmospheric, topographic, …

Evaluation Of Numerical, Analytical, And Experimental Particle Deposition In Simple And Lung Geometries, Pamela M. Snyder

Theses

Particle deposition is utilized to determine exposure limits, design inhaled medications, and study pulmonary disorders that are a result of airborne pathogens. This information can be obtained from analytical equations, experimental studies, empirical relationships, and numerical analysis.

This research utilizes analytical equations, empirical relationships, and experimental data to investigate the accuracy of three Computational Fluid Dynamics (CFD) software packages; Fluent Discrete Phase Model (DPM), Fluent Fine Particle Model (FPM) and CFX. The sedimentation, molecular diffusion and impaction deposition mechanisms are investigated in a straight tube, bifurcating tube, and three generation lung geometry.

Sedimentation is evaluated in the straight tube for …

Security In Serverless Network Environments, Carl Holtje

Theses

As portable computing devices grow in popularity, so does the need for secure communications. Lacking tethers, these devices are ideal for forming small proximal groups in an ad-hoc fashion in environments where no server or permanent services are available. Members of these groups communicate over a broadcast or multicast network interconnect, and rely upon each other to form a cohesive group. While generally small in size and short in lifetime, security is a critical aspect of these groups that has received much academic attention in recent years. Much of the research focuses upon generating a common, group-wide private key suitable …

A Comparison Of Reputation-Based Trust Systems, John Folkerts

Theses

Recent literature contains many examples of reputation systems which are constructed in an ad hoc way or rely upon some heuristic which has been found to be useful. However, comparisons between these reputation systems has been impossible because there are no established methods of comparing performance. This paper introduces a simulation framework which can be used to perform comparison analysis between reputation models. Two reputation models, one from Abdul-Rahman and Hailes (ARH) [1], and one from Mui, Mohtashemi, and Halberstadt (MMH) [17] are implemented and compared with regard to accuracy, performance and resistance to deception. In order to improve performance …