Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2009

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 35041 - 35070 of 35167

Full-Text Articles in Entire DC Network

Model-Based Classification Of Speech Audio, Chris. Thoman Jan 2009

Model-Based Classification Of Speech Audio, Chris. Thoman

Electronic Theses and Dissertations 2000 - 2009

This work explores the process of model-based classification of speech audio signals using low-level feature vectors. The process of extracting low-level features from audio signals is described along with a discussion of established techniques for training and testing mixture model-based classifiers and using these models in conjunction with feature selection algorithms to select optimal feature subsets. The results of a number of classification experiments using a publicly available speech database, the Berlin Database of Emotional Speech, are presented. This includes experiments in optimizing feature extraction parameters and comparing different feature selection results from over 700 candidate feature vectors for the …


Mixed Integer Nonlinear Programming Model To Optimize The Use Of Aircraft Deicing And Anti-Icing Fluids, Scott E. Ornitz Jan 2009

Mixed Integer Nonlinear Programming Model To Optimize The Use Of Aircraft Deicing And Anti-Icing Fluids, Scott E. Ornitz

Electronic Theses and Dissertations 2000 - 2009

A detailed study is proposed for understanding the use of aircraft deicing and anti-icing fluids (ADAF) and optimal use of these fluids in airport operations. A detailed literature review of past and current technologies is conducted and possible opportunities to improve the use of ADAF and relevant recommendations are derived. Mathematical optimization models (e.g. MINLP with binary variables) based on a variety of objectives, which deal with exhaustive sets of system constraints are formulated, developed and applied to case studies. One real-life case study area which routinely carries out aircraft deicing is used for testing the mathematical optimization formulations for …


Numerical Performance Prediction For Fau's First Generation Ocean Current Turbine, Nicolas. Vanrietvelde Jan 2009

Numerical Performance Prediction For Fau's First Generation Ocean Current Turbine, Nicolas. Vanrietvelde

Electronic Theses and Dissertations 2000 - 2009

This thesis presents the analytically predicted position, motion, attitude, power output and forces on Florida Atlantic University's (FAU) first generation ocean current turbine for a wide range of operating conditions. These values are calculated using a 7- DOF dynamics simulation of the turbine and the cable that attaches it to the mooring system. The numerical simulation modifications and upgrades completed in this work include developing a wave model including the effects of waves into the simulation, upgrading the rotor model to specify the number of blades and upgrading the cable model to specify the number of cable elements. This enhanced …


Object Detection In Low Resolution Video Sequences, Diego F. Pava Jan 2009

Object Detection In Low Resolution Video Sequences, Diego F. Pava

Electronic Theses and Dissertations 2000 - 2009

With augmenting security concerns and decreasing costs of surveillance and computing equipment, research on automated systems for object detection has been increasing, but the majority of the studies focus their attention on sequences where high resolution objects are present. The main objective of this work is the detection and extraction of information of low resolution objects (e.g. objects that are so far away from the camera that they occupy only tens of pixels) in order to provide a base for higher level information operations such as classification and behavioral analysis. The system proposed is composed of four stages (preprocessing, background …


Muddling Through, Carole A. Kain Jan 2009

Muddling Through, Carole A. Kain

Electronic Theses and Dissertations 2000 - 2009

In the United States, an estimated 1.4 million children and adolescents, age 18 and under, provide daily unpaid physical, emotional and supportive care to a chronically ill or disabled family member (NAC & UHF). While the phenomenon of caregiving performed by adult children and spouses has been extensively explored by nursing, little is known about how Young Adolescent Caregivers manage being a caregiver while they attend school and mature socially as an adolescent. The purpose of this Grounded Theory study was to identify and describe the basic social psychological problem shared by young adolescent caregivers girls, (N=9), aged 11-14, and …


One Nation Under Gods, Laura Gayle Fallon Jan 2009

One Nation Under Gods, Laura Gayle Fallon

Electronic Theses and Dissertations 2000 - 2009

This study argues that the interfaith symbolism present in the works of American author Jean Toomer undermines dominant Christian justifications for racism in the United States. It also discusses the ways in which Toomer's interfaith symbolism promotes the establishment of a race Toomer called the "American" race, a group of interracial, interreligious people whom Toomer hoped would change the way race was viewed in the United States. The multireligious references in Toomer's works challenge constricted definitions of both religion and race by highlighting interchangeable religious ideals from several world religions.


Optimal Operation Of Hydro Power Systems Under A Fuzzy Multi-Objective Decision Making Environment, Andrâe Rodrigues Ferreira Jan 2009

Optimal Operation Of Hydro Power Systems Under A Fuzzy Multi-Objective Decision Making Environment, Andrâe Rodrigues Ferreira

Electronic Theses and Dissertations 2000 - 2009

Management of water resources has become more complex in recent years as a result of changing attitudes towards sustainability and the attribution of greater attention to environmental issues, especially under a scenario of water scarcity risk introduced by climate changes and anthropogenic pressures. This thesis addresses the conflicts in optimizing multi-purpose hydropower operations under an environment where objectives are often conflicting and uncertain. Mathematical programming formulations can be used to achieve flexible, feasible and optimal operation and planning solutions to satisfy expectations of multiple stake-holders, including regulatory environmental compliance and sustainability. Innovative optimization models using MINLP with binary variables, fuzzy …


Pedometers In The Curriculum, Henry J. Allen Jan 2009

Pedometers In The Curriculum, Henry J. Allen

Electronic Theses and Dissertations 2000 - 2009

The purpose of this investigation was to determine the effects of a pedometer-based intervention on physical activity and self-efficacy among community college students in wellness classes (N = 154). The intervention included a pretest/posttest physical activity questionnaire, pedometer use, weekly goal setting and self-report of step data via the web. The experimental group wore pedometers daily for ten weeks; the control group wore pedometers for one week at baseline and week ten. Average weekday physical activity increased 29% for the experimental group and decreased 16% for the control group. Data analysis demonstrated a statistically significant difference due to the treatment …


Perceptions Of Industry Practitioners Toward An Academic Degree Program In Public Assembly Facility Management, James J. Riordan Jan 2009

Perceptions Of Industry Practitioners Toward An Academic Degree Program In Public Assembly Facility Management, James J. Riordan

Electronic Theses and Dissertations 2000 - 2009

Utilizing a modified Delphi Technique research study, consensus was sought from 298 practitioners in the public assembly facility management (PAFM) industry regarding their perceptions on varied matters connected to the academic preparation of managers/executives serving the industry. A comprehensive literature review and a prior pilot study were conducted for the purpose of creating the initial survey (Questionnaire 1). The pilot study consisted of an open-ended interview session with a panel (N=16) of PAFM managers. Sixty-four (64) of 66 consensus-seeking items attained consensus from the respondents (N=298) after Questionnaire 1 results were tabulated. Respondents were given the opportunity to re-assess their …


Opposition Politics And Populism, Morgan Alissa Weiss Jan 2009

Opposition Politics And Populism, Morgan Alissa Weiss

Electronic Theses and Dissertations 2000 - 2009

This thesis examines the relationship between the political opposition and populism. The goal is to identify when, how, and under what circumstances an opposition to a populist leader affects change to the political system. A comparative historical analysis is employed as five case studies from South America are examined. The evidence presented in these case studies demonstrates that the political oppositions in each country were unsuccessful in affecting change to their respective political systems. They were unable to demobilize the support base that the populist leaders had created. Change came to the political systems in four out of the five …


Plant And Ant Communities In The Northern Everglades, Camille Darby Carroll Jan 2009

Plant And Ant Communities In The Northern Everglades, Camille Darby Carroll

Electronic Theses and Dissertations 2000 - 2009

I examined the impact of the exotic, invasive plant Old World climbing fern, Lygodium microphyllum (Cav.) R. Brown, on tree island plant and ant communities in the northern Everglades. I selected 15 tree islands representing four groups: non-Lygodium islands, islands with low levels of Lygodium, islands with high levels of Lygodium, and disturbed islands impacted by people. I used a variety of diversity indices to compare plant and ant data among habitats. The ant communities studied included native and exotic species typical of south Florida. Tree island plant communities were consistent with descriptions from previous studies. Plant species richness decreased …


Philosophy Of The Animal In 20th Century Literature, Jamie Johnson Jan 2009

Philosophy Of The Animal In 20th Century Literature, Jamie Johnson

Electronic Theses and Dissertations 2000 - 2009

The following dissertation examines the philosophy of the animal as it appears in twentieth-century British and American literature. I argue that evolutionary theory, along with the Romantic emphasis on sympathy, creates an historical shift in our perception of humans and nonhumans. Beginning with Herman Melville's classic novel, Moby-Dick, the whale represents what I call a transitional animal figure in that the whale not only shows the traditionally symbolic literary animal but also the beginnings of the twentieth century shift toward the literal animal-as-subject. My proposed comparative analysis consists of a return to classic existential and phenomenological philosophers with animal studies …


Paleopathology Of Human Remains From The Plaza San Marcos, Quito, Ecuador, Ronda R. Graves Jan 2009

Paleopathology Of Human Remains From The Plaza San Marcos, Quito, Ecuador, Ronda R. Graves

Electronic Theses and Dissertations 2000 - 2009

Skeletal remains provide an exceptional opportunity to document the biological adaptations that a population undergoes in response to environmental, political and economic changes (Perry, 2007). For over 35 years, bioarchaeological analyses have documented such changes indigenous Ecuadorians. In 2007, Victoria Dominguez excavated remains at the Plaza San Marcos in Quito, Ecuador. I analyzed these remains, documented evidence of pathologic conditions and trauma, and compared this native population to other indigenous populations and to European cohorts. My analyses revealed increased violence and pathologic conditions in the Plaza San Marcos population when compared to populations occupying Quito prior to colonization and during …


Power Politics, Rebecca Ann Smith Jan 2009

Power Politics, Rebecca Ann Smith

Electronic Theses and Dissertations 2000 - 2009

While literary critics acknowledge Mary Elizabeth Braddon's Lady Audley's Secret and Wilkie Collins's No Name as sensation novels that were considered popular literature during the 1860s, many critics often fail to recognize the social and political implications embedded within these texts. In No Name, for instance, Collins's use of a heroine that is disinherited and deemed illegitimate by the law emphasizes the overpowering force of patriarchy. In response to patriarchal law, therefore, the heroines of Lady Audley's Secret and No Name attempt to improve their social positions in a society that is economically dependent upon men. Braddon's Lady Audley and …


Principals' Attitudes Toward The Use Of Culturally Relevant Pedagogy And Culturally Responsive Leadership In Predominantely [Sic] African American Schools, Tressey. Weaver Jan 2009

Principals' Attitudes Toward The Use Of Culturally Relevant Pedagogy And Culturally Responsive Leadership In Predominantely [Sic] African American Schools, Tressey. Weaver

Electronic Theses and Dissertations 2000 - 2009

The purpose of this study was to determine principals' attitudes toward the use of culturally relevant pedagogy and culturally responsive leadership in predominately African American schools. Culturally relevant pedagogy, culturally responsive teaching, culturally responsive urban leadership, and ethnohumanist leadership are the study's theoretical underpinnings. The research question was as follows: To what extent, if any, do principals of predominately African American schools promote culturally relevant pedagogy and utilize culturally responsive leadership? The sample for this mixed methods study was secondary school principals and teachers in predominately African American schools. Seven principals and 43 teachers participated in the study. The research …


Power, Instability And Regulatory Focus, Noel Jm Trew Jan 2009

Power, Instability And Regulatory Focus, Noel Jm Trew

Electronic Theses and Dissertations 2000 - 2009

This thesis applies Higgins (1997) Regulatory Focus Theory to the study of conflict by exploring the relationship between power and promotion vs. prevention orientation. After considering the earlier work of Keltner, Gruenfeld & Anderson (2003) that established the considerable effect that power has on approach and avoidance behaviors, the present research shows that this link also applies to regulatory focus. In this study, participants had their sense of power experimentally manipulated by a set of vignettes and then answered follow-up questions to determine what effect this had on their regulatory focus orientation. Results indicated that high power is associated with …


Predicting Hospital Readmissions In Patients With Diabetes, Darwin E. Asper Jan 2009

Predicting Hospital Readmissions In Patients With Diabetes, Darwin E. Asper

Electronic Theses and Dissertations 2000 - 2009

The objective of this study was to determine whether 11 independent variables or combinations of variables help to predict a diabetes-related hospital readmission for patients with diabetes within 60 days from discharge. The variables were categorized into four main groups: (a) patient characteristics, (b) lifestyle, (c) biomarkers, and (d) disease management aspects. A convenience sample of 389 historical medical records of patients who were admitted to a rural hospital in northeastern North Carolina with a diagnosis of, or relating to, diabetes was studied. After comparing predictive discriminant analysis (PDA) and logistic regression (LR), PDA performed better and was chosen to …


Probabilistic Predictor-Based Routing In Disruption-Tolerant Networks, Quan. Yuan Jan 2009

Probabilistic Predictor-Based Routing In Disruption-Tolerant Networks, Quan. Yuan

Electronic Theses and Dissertations 2000 - 2009

Disruption-Tolerant Networks (DTNs) are the networks comprised of a set of wireless nodes, and they experience unstable connectivity and frequent connection disruption because of the limitations of radio range, power, network density, device failure, and noise. DTNs are characterized by their lack of infrastructure, device limitation, and intermittent connectivity. Such characteristics make conventional wireless network routing protocols fail, as they are designed with the assumption the network stays connected. Thus, routing in DTNs becomes a challenging problem, due to the temporal scheduling element in a dynamic topology. One of the solutions is prediction-based, where nodes mobility is estimated with a …


Big, Bad, Black And Gay: Overcoming The Shackles Of The Socially Constructed Black Masculine, Scott Skinner-Thompson Jan 2009

Big, Bad, Black And Gay: Overcoming The Shackles Of The Socially Constructed Black Masculine, Scott Skinner-Thompson

Publications

No abstract provided.


Religious Expression And The Penal Institution: The Role Of Damages In Rluipa Enforcement, Joseph E. Bredehoft Jan 2009

Religious Expression And The Penal Institution: The Role Of Damages In Rluipa Enforcement, Joseph E. Bredehoft

Missouri Law Review

This Summary focuses on RLUIPA's institutionalized persons provision and whether, under its remedial provision, an inmate plaintiff can receive compensatory damages. First, this Summary looks at key decisions dealing with the availability of compensatory damages in individual and official capacity claims under RLUIPA. The second component of the Summary analyzes a recent Eighth Circuit decision on the issue of damages as it relates to RLUIPA. This Summary then evaluates the case law on this issue, discussing the policy reasons for and against allowing compensatory damages. Lastly, the discussion concludes that the Eighth Circuit should prohibit institutionalized persons from obtaining compensatory …


Statutory Leapfrog: Compensatory And Punitive Damages Under The Retaliatory Provision Of The Ada, David A. Doellman Jan 2009

Statutory Leapfrog: Compensatory And Punitive Damages Under The Retaliatory Provision Of The Ada, David A. Doellman

Missouri Law Review

Equality has traditionally been an important issue in many different aspects of American life, and Congress created various laws to ensure that this equality is preserved. One of these laws is the Americans with Disabilities Act of 1990 (ADA). The ADA was created to ensure that those with disabilities would be treated equally in aspects of both public services and accommodations, as well as in the employment sector. Among its many provisions, the ADA serves to protect employees from being discharged from their positions in "retaliation" for opposing practices by the employer that would have also been unlawful under the …


Protecting The Predator Or The Prey - The Missouri Supreme Court's Refusal To Allow Past Sexual Misconduct As Propensity Evidence, William E. Marcantel Jan 2009

Protecting The Predator Or The Prey - The Missouri Supreme Court's Refusal To Allow Past Sexual Misconduct As Propensity Evidence, William E. Marcantel

Missouri Law Review

Americans consider child molestation and sexual assault among the most heinous crimes that one can commit. In response to the public's opinion regarding these crimes, Congress created exceptions to the longstanding rule barring character propensity evidence. Over the protests of prominent lefal figures, Congress enacted Federal Rules of Evidence 413- 415 in 1994. Though these rules have been sustained by several appellate court decisions, the constitutionality of Rules 413-415 has not been conclusively decided by the United States Supreme Court. Missouri's legislature has twice attempted to pass a statute regarding child molestation similar to Federal Rule of Evidence 414, and …


How The New Economics Can Improve Employment Discrimination Law, And How Economics Can Survive The Demise Of The Rational Actor, Scott A. Moss, Peter H. Huang Jan 2009

How The New Economics Can Improve Employment Discrimination Law, And How Economics Can Survive The Demise Of The Rational Actor, Scott A. Moss, Peter H. Huang

Publications

Much employment discrimination law is premised on a purely money-focused "reasonable" employee, the sort who can be made whole with damages equal to lost wages, and who does not hesitate to challenge workplace discrimination. This type of "rational" actor populated older economic models but has been since modified by behavioral economics and research on happiness. Behavioral and traditional economists alike have analyzed broad employment policies, such as the wisdom of discrimination statutes, but the devil is in the details of employment law. On the critical damages-and-liability issues the Supreme Court and litigators face regularly, the law essentially ignores the lessons …


Jurisdiction's Noble Lie, Frederic M. Bloom Jan 2009

Jurisdiction's Noble Lie, Frederic M. Bloom

Publications

This Article makes sense of a lie. It shows how legal jurisdiction depends on a falsehood--and then explains why it would.

To make this novel argument, this Article starts where jurisdiction does. It recounts jurisdiction's foundations--its tests and motives, its histories and rules. It then seeks out jurisdictional reality, critically examining a side of jurisdiction we too often overlook. Legal jurisdiction may portray itself as fixed and unyielding, as natural as the force of gravity, and as stable as the firmest ground. But jurisdiction is in fact something different. It is a malleable legal invention that bears a false rigid …


Colorado V. Connelly: What Really Happened, William T. Pizzi Jan 2009

Colorado V. Connelly: What Really Happened, William T. Pizzi

Publications

In 1986, the Supreme Court decided Colorado v. Connelly, a landmark case in due process and fifth amendment law. The case began when Francis Barry Connelly approached a police officer on the street in downtown Denver to confess to having killed a young woman several months earlier in southwest Denver. Because Connelly was suffering from acute schizophrenia and was hearing auditory hallucinations commanding him to confess, state courts suppressed his statements to the police on the grounds (1) that his statements before arrest were involuntary and inadmissible under the due process clause and (2) those statements post-arrest could not …


Land Resources Series No 21 - Tambellup-Borden Area Land Resources Survey, Angela Stuart-Street, Rohan Marold Jan 2009

Land Resources Series No 21 - Tambellup-Borden Area Land Resources Survey, Angela Stuart-Street, Rohan Marold

Natural resources published reports

AGDEX 526

Land Resources Series No. 21

This report presents results from soil-landscape mapping at a scale of 1: 100,000 in the Tambellup- Borden area of Western Australia. It is accompanied by a soil-landscape map covering almost 511,000 hectares.

Most of the survey occurs within the upper Frankland-Gordon, Kent, North Stirlings Basin and upper reaches of the Pallinup and Kalgan River catchments. The survey falls within the Katanning and Albany Department of Agriculture and Food advisory districts.

Seventeen soil-landscape systems have been identified and are represented on the map on the accompanying CD-ROM. These systems have been further divided into …


Pdi, Reactive Oxygen Species Stress And Polyphenolic Phytochemicals: Implications For Neurodegenerative Diseases, Rituraj Pal Jan 2009

Pdi, Reactive Oxygen Species Stress And Polyphenolic Phytochemicals: Implications For Neurodegenerative Diseases, Rituraj Pal

Open Access Theses & Dissertations

PDI, protein disulfide isomerase, is one of the most versatile proteins and highly expressed in mammalian cells because there is a vast number of proteins that must undergo processing before secretion to their final destinations. PDI has several functions: oxidation of nascent proteins and isomerization of existing disulfide bonds. It also possesses chaperone activity and participates in protein degradation. Because of its structure, PDI can exist in a reduced or oxidized form. In mammalian cells it is mostly reduced due to the high demand of disulfide bond shuffling of secreted proteins within the ER, PDI a, a', and b' posses …


A Retrospective Study Of Dust Storms And Respiratory Hospitalizations In El Paso, Texas Using A Case-Crossover Study Design, Yanlei Peng Jan 2009

A Retrospective Study Of Dust Storms And Respiratory Hospitalizations In El Paso, Texas Using A Case-Crossover Study Design, Yanlei Peng

Open Access Theses & Dissertations

Dust storms frequently occur in El Paso, Texas, but little is known about their respiratory health effects. The association between dust storm and hospitalization for respiratory illness will be studied through a case-crossover study design. The goal is to ascertain the effect of dust storms, adjusted for weather and other pollutants, and to explore the potential harmfulness for different subgroups of residents. A case-crossover study allows patients to serve as their own controls, in order to reduce confounding. The history, relationship, and application of the case-control and case-crossover study designs are reviewed in this thesis. The estimating equations for conditional …


Effects Of Build Orientation, Aging, And Pre-Conditioning On Mechanical Properties For Stereolithography-Manufactured Astm Type I Specimens Using A Design Of Experiments Approach, Karina Puebla Jan 2009

Effects Of Build Orientation, Aging, And Pre-Conditioning On Mechanical Properties For Stereolithography-Manufactured Astm Type I Specimens Using A Design Of Experiments Approach, Karina Puebla

Open Access Theses & Dissertations

With industry's growing focus on the rapid manufacturing (RM) of end-use products, rapid prototyping (RP) or layered manufacturing (LM) machines that were originally designed to build prototypes may now be required to build functional end-use products. To successfully accomplish the transition, the available materials utilized in RP must provide the performance required for RM. The specific technology used must also be capable of producing repeatable and reproducible parts in regards to mechanical and dimensional properties.

A design of experiments approach was performed to determine the effects of build orientation, aging, and pre-conditioning on the mechanical properties. To perform the investigations, …


Optimization Of A Strapdown Inertial Navigation System, Mario Ruiz Jan 2009

Optimization Of A Strapdown Inertial Navigation System, Mario Ruiz

Open Access Theses & Dissertations

The focus of this Thesis is to find 21 error parameters in a Strapdown Inertial Navigation System (SINS) that would minimize objective functions or error functions to increase accuracy utilizing an optimization algorithm. The algorithm used is goal attainment by Gembiki which is a multi-objective optimization algorithm proven to outperform other optimization methods in terms of efficiency and accuracy over large numbers of problems. Simulations of a noise-free SINS mounted on an aircraft were done in a stationary and on the move scenario to simulate two conditions in which alignment could become necessary. The error parameters to find were sensor …