Digital Commons Network^™

An Unconventional Design For Bus U-Turns At Signalized Intersections, Huaguo Zhou, Pei-Sung Lin, Joan Shen

Journal of Public Transportation

This paper addresses an unconventional design for accommodating bus U-turns at signalized intersections based on a case study in Miami, Florida. Field data were collected at the study site, including traffic volumes, traffic conflicts, pedestrian/ bicyclist activities, signal phase sequence, headway of buses, and radii of bus U-turns. A detailed operational analysis was performed at the signalized intersection using Synchro. The results of the operational analysis indicate that implementation of the unconventional bus U-turn design at the signalized intersection will not cause major operational problems when the total entering volume is less than 4,000 vehicles per hour. To address the …

Safety-Focused Altruism: Valuing The Lives Of Others, Kevin Lee Brady

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The value of statistical life is an estimate of the monetary benefits of preventing an anonymous death. Society's willingness to pay to eliminate private health risks determines agencies' value-of-statistical-life estimates. Most estimates ignore society's willingness to pay to eliminate others' health risks. There are two possible reasons. First, altruism does not exist: Peter is not willing to pay to save Paul's life. The second possible reason is a bit more complicated. Certain economists argue that increasing benefit estimates to account for altruism involves double-counting.

The purpose of this thesis is to evaluate these possibilities. Accounting for altruism, it turns out, …

Bio Buzz Newsletter, Issue 2, December 2008, Department Of Biology

Biology Buzz Newsletter

Denison University Biology Department newsletter for 2008

Resurrecting Speranza: Lady Jane Wilde As The Celtic Sovereignty, Heather Lorene Tolen

Theses and Dissertations

This thesis explores the ways in which Lady Jane Wilde, writing under the pen name of Speranza, established ethos among a poor, uneducated, Catholic populace from whom she was socially and religiously disconnected. Additionally, it raises questions as to Lady Wilde's exclusion from the roster of Irish literary voices who are commonly associated with the Irish Literary Revival, inasmuch as Lady Wilde played a critical, inceptive role in that movement. Lady Jane Wilde, mother of Oscar Wilde, was an ardent nationalist who lived in Victorian Ireland. She contributed thirty-nine poems and several essays to the Nation newspaper—a nationalist publication—under the …

Preliminary Perspectives On The Health Needs Of Pastoral Women On The Borana Plateau Using Participatory Approaches, D. Layne Coppock, Seyoum Tezera, Solomon Desta

Environment and Society Faculty Publications

Since 2000, the PARIMA project has conducted participatory research and outreach among pastoralists in southern Ethiopia. This has led to notable achievements in terms of forming collective-action groups dominated by women, stimulation of sustainable micro-finance and micro-enterprise activities, and improving linkages of pastoral producers to livestock markets. Despite such gains, there are many other challenges to be addressed. One is poor human health. PARIMA researchers used participatory and qualitative methods to conduct a preliminary assessment of women’s health problems among members of six, well-established collective-action groups from the Borana and Gugi zones in the Oromia Regional State during 2008. Conventional …

Successful Implementation Of Collective Action And Human-Capacity Building Among Pastoralists In Southern Ethiopia: Lessons Learned, 2001-2008, D. Layne Coppock, Seyoum Tezera, Solomon Desta, Getachew Gebru

Environment and Society Faculty Publications

Since 2000 the PARIMA project has implemented pilot risk-management activities among poverty-stricken, semi-settled pastoralists in southern Ethiopia. The goal has been to improve human welfare via collective action and capacity building. Outcomes include progress in income generation, asset conservation, and livelihood diversification. The approach has been unique to southern Ethiopia in that a bottom-up, participatory perspective has dominated. It has focused on the priorities and felt needs of local people rather than top-down development of livestock or agricultural technology. Fifty-nine collective-action groups were created. Dominated by women, they have included over 2,300 members and most groups have been recently merged …

Are Cattle Die-Offs Predictable On The Borana Plateau, D. Layne Coppock, Getachew Gebru, Solomon Desta, Sintayehu Mesele, Seyoum Tezerra

Environment and Society Faculty Publications

Drought regularly affects rangelands and contributes to high death rates for livestock and poverty for pastoralists. But do livestock losses occur randomly simply when rainfall is low, or are they cyclical and predictable? Previously, PARIMA researchers proposed that high stocking rates—combined with low rainfall—trigger livestock die-offs on the Borana Plateau. It takes about six years for animal numbers to recover, setting the stage for another die-off when a dry year occurs. This “boom-and-bust” cycle is based on observed herd crashes in 1983-5, 1991-3, and 1998-9. Researchers predicted in 2002 that the next major die-off would occur during 2004-06, and one …

What Are Consumers In Moyale, Kenya Willing To Pay For Improved Milk Quality?, D. Layne Coppock, Francis O. Wayua, Mohamed G. Shibia, Moses S. Mamo

Environment and Society Faculty Publications

Pastoralists in northern Kenya and southern Ethiopia may be able to diversify income by selling milk to urban residents. However, milk sold in open-air markets is often low in quality because it has been transported long distances without refrigeration and is subject to spoilage, or because milk is adulterated prior to sale to boost volume or enhance appearance. Open-air markets are characterized by low-income consumers who must make choices about milk quality with virtually no information other than their own sensory perceptions. PARIMA researchers used an experimental-auction approach to determine what residents in Moyale, Kenya, are willing to pay (WTP) …

December 1, 2008, The Daily Mississippian

Daily Mississippian (all digitized issues)

No abstract provided.

'Fabrication And Characterization Of Polymer Blends And Composites Derived From Biopolymers', Suraj Sharma

All Dissertations

This research focuses on fabricating blends and composites from natural polymers especially from proteins and natural epoxy, and describing the properties of plastics made from them. Specifically, plastic samples from partially denatured feathermeal and bloodmeal proteins, derived from the animal co-products (rendering) industry, were successfully produced through a compression molding process. The modulus (stiffness) of the material obtained was found to be comparable with that of commercial synthetic materials, such as polystyrene, but was found to have lower toughness characteristics, which is a common phenomenon among plastics produced from animal and plant proteins. Therefore, this study explored blending methods for …

Presidential Fundraising In South Carolina's Two-Year Technical Colleges, John Boyd

All Dissertations

ABSTRACT
The purpose of this study was to explore fundraising at South Carolina's Technical Colleges. The major focus of the study was on presidential characteristics and practices along with various institutional characteristics and fundraising success. The research design was descriptive and employed various methods in the collection of data. Data were obtained from administrative sources, public documents, surveys, and interviews. The study includes general information on South Carolina's Technical Colleges, information from IRS Form 990s on 15 of the colleges, results of survey data from 12 colleges, and follow-up interview responses from 5 of the presidents who completed the survey. …

Characterization Of Bioactive Phytochemicals From The Stem Bark Of African Mahogany Khaya Senegalensis (Meliaceae), Huaping Zhang

All Dissertations

ABSTRACT
African mahogany Khaya senegalensis (Desr.) A. Juss (Meliaceae) is a large tree growing mainly in the sub-Saharan savannah forests from Senegal to Uganda. This plant is one of the most popular medicinal meliaceous plants in traditional African remedies, used as a bitter tonic, folk and popular medicine against malaria, fever, mucous diarrhea, and venereal diseases as well as an anthelmintic and a taeniacide remedy. Its extracts and chemical constituents have been the subject of extensive phytochemical and pharmacological investigations since 1960s. Anti-inflammatory, anti-bacterial, anthelmintic, and antiplasmodial activities of plant extracts have been reported. Limonoids with anti-feeding, feeding deterrent and …

Synthesis, Characterization, And Application Of Ag Nanostructures, Stephen Hudson

All Dissertations

Noble metal nanoparticles (NPs) have been used for many centuries; however their properties were not truly scrutinized until Michael Farady's investigations in the 1850's. Advances in the field of nanotechnology over the last three decades have enabled insights into the properties of materials as their dimensions are reduced to the nanoscale. The repercussions of these insights are seen in many modern applications.
In this dissertation, properties of novel nanostructures based on Ag NPs are presented and discussed. The exceptional optical properties of Ag NPs stem from the collective oscillations of the conduction electrons known as plasmon resonances. The excitation of …

Agritourism As A Viable Strategy For Economic Diversification: A Case Study Analysis Of Policy Options For The Bahamas, Erecia Hepburn

All Dissertations

This research examines the prospects for developing an economic diversification policy for The Bahamas, utilizing agritourism. The Bahamas is plagued with the dominance of one traditional sector, tourism combined with the lack of economic innovation and the inability to maintain domestic demand for food security, which has the potential for economic crisis if there are any serious 'external shocks' or setbacks in mainstream tourism. Such a possible drop in tourism is most evident from experiences in 2001 with the Straw Market fire of Sept 4th, and the terrorist attacks in America on September 11th, coupled with the escalating cost of …

Synthesis And Characterization Of Macromolecular Layers Grafted To Polymer Surfaces, Oleksandr Burtovyy

All Dissertations

The composition and behavior of surfaces and interfaces play a pivotal role in dictating the overall efficiency of the majority of polymeric materials and devices. Surface properties of the materials can be altered using surface modification techniques. It is necessary to highlight that successful methods of surface modification should affect only the upper layer of the polymer material without changing bulk properties. The processes must introduce new functionalities to the surface, optimize surface roughness, lubrication, hydrophobicity, hydrophilicity, adhesion, conductivity, and/or biocompatibility.
Research presented in this dissertation is dedicated to the synthesis, characterization, and application of thin macromolecular layers anchored to …

The Influence Ofattribute Performance Appraisal, Emotion And Time On The Satisfaction Response Of Golf Travelers, Brian Krohn

All Dissertations

Golf travel has been shown to be a strong component of the economy for regions that rely on tourism for generating revenue (Flowers, 2006). As a reflection of the importance of this component of the tourism industry, researchers have examined the components of the golf travel experience (Petrick & Backman, 2002). One methods to examine the quality of the experiences is to examine variables such as perceived value (Hutchinson, Lai & Wang, in press), loyalty (Backman, 1991) and satisfaction (Petrick & Backman 2001, 2002b).
Consumer behavior research has looked at satisfaction as a gauge of the quality of the experience …

Institutional Culture, Performance, And Learning In A Two-Year Technical/Community College, Vicky Maloney

All Dissertations

The environments of higher education institutions have undergone significant changes in the past twenty years as a result of concerns expressed in prominent reports. These external concerns and initiatives reflect contemporary criticisms by the public about the efficiency and effectiveness of the performance of institutions. The response from research, legislatures, and the institutions has been to implement practices aimed at improvement and borrowed from business and industry. Research indicates that this performance orientation to change in higher education has largely failed, due in part to the lack of attention given to the culture of the institution.
Emerging research indicates a …

Topographic Analysis And Predictive Modeling Using Geographic Information Systems, Steven Hall

All Dissertations

This dissertation describes three GIS models developed to better model topographic features and the occurrence of mountain laurel (Kalmia latifolia) in the southern Appalachian Mountains. The first study presented 'A LiDAR based GIS model to calculate Terrain Shape Index on a landscape scale', attempts to develop a GIS based model to calculate the Terrain Shape Index (TSI). TSI is typically collected in the field using a series of elevation measurements to determine the average elevation change within the study plot. In this study, a GIS model is developed and TSI values compared to those collected using conventional methods. The second …

The Experiences Of Chief Student Affairs Officers In Addressing Incidents Of Racial Insensitivity On College And University Campuses, Idella Glenn

All Dissertations

ABSTRACT
This study examined the Chief Student Affairs Officer's (CSAO) role in addressing incidents of racial insensitivity on college and university campuses. The research methodology used for the study was a qualitative research design. Utilizing the collective case study method, within-case and cross-case analyses were completed for the study. Data were collected from eleven CSAOs at public institutions through their participation in telephone interviews.
Five major themes emerged from the study. First, the CSAO
must be multiculturally competent in order to address a variety of incidents of racial insensitivity. Second, the CSAO must understand the law and legal precedents regarding …

Effective Vr: Interplay Of Presence, Perception, Fidelity And Transfer Effects In The Development Of Inspection Training Simulators, Sajay Sadasivan

All Dissertations

Increased emphasis on aircraft inspection to ensure aviation safety has resulted in the need for a better trained workforce of aircraft maintenance personnel. Aircraft inspection is mostly visual in nature. Thus it has led to the development of computer simulators to train human inspectors performing the inspection task. However, the lack of immersion and interaction in such simulators has led to limited effectiveness and adoption. Using advances in graphics and virtual reality technology, there is an increase the sense of involvement in using these simulators. Though technology is available to provide higher levels of immersion, it is expensive. It is …

Estimation Of Emergency Room Visits: Implications For Uninsured In South Carolina, Anusha Pokuri

All Dissertations

This study assesses the relationships between the percentage of emergency room visits, the percentage of uninsured population, and socio-demographic characteristics. This is accomplished by developing linear models of the relationships among these variables for the 46 counties of South Carolina for the year 2000. The results showed that the percentage of non-White population and percentage of business establishments that employ fewer than 50 workers had significant positive influence on the percentage of uninsured population. The median household income and high percentage of population with educational attainment beyond high school had a significant negative influence on the percentage of uninsured population. …

Theoretical And Practical Implications Of A Hedonic Pricing Model: Empirical Observations From Wholesale Automobile Auctions, Jeffrey Roach

All Dissertations

Wholesale auto auctions are convenient structures for economists as they attempt to observe the marginal effects of quality changes on the market-clearing price. However, what may be categorized as a quality change might rather be a market signal of an environment with adverse selection. This dissertation analyzes the effects of seller type and tests their sensitivity to econometric model specification.
General hedonic attributes and their various applications are reviewed. This dissertation explores the basic auto auction environment and dispels inaccurate notions about the auction structure. Following Bartik's (1987) analysis, multi-market data are used to produce hedonic estimates for seller, mileage …

Software Process Control Without Calibration, Oussama El-Rawas

Graduate Theses, Dissertations, and Problem Reports (ETD)

Software process control is important for large enterprise since it is essential for software project management. Boehm [10, 12--15, 20] argues that the best way to do software process control is reusing old proven models (e.g. COCOMO for effort, COQUALMO for defects, etc) while tuning them to local data in order to obtain accurate estimates. This however suggests that historic data is available related to the use of these models in previous software projects. This is not the case, as the availability of relevant historic data related to the use of the above models in a specific software environment is …

Effects Of The Antimicrobial Agent Triclosan On Bacterial Resistance To Disinfection In Wastewater Treatment Processes, Meilin Liu

Graduate Theses, Dissertations, and Problem Reports (ETD)

2-(2,5-Dichlorophenoxy)-5-chlorophenol or Triclosan is a widely used antimicrobial agent included in a multitude of products, such as soap, toothpaste, and personal care products.;The objective of this research was to investigate the effects of Triclosan on the resistance of activated sludge bacteria to conventional disinfection processes applied in wastewater treatment processes, such as chlorination and UV.;Specific Aim 1. A complex bacterial community collected from an active sludge was acclimated over several sub-cultures in the presence of different concentrations of Triclosan (from 0.0 to 20 mg L-1) and then exposed to sub-lethal doses of chlorine and UV irradiation. Determination of bacterial viability …

Measurement Of Short-Wavelength Electrostatic Fluctuations In A Helicon Plasma Source, Robert Aaron Hardin

Graduate Theses, Dissertations, and Problem Reports (ETD)

The principle objective of this work is to determine if short wavelength fluctuations capable of heating ions are excited in helicon sources at the same plasma parameters for which anomalous ion heating has been observed in helicon sources. A portable 300 GHz based, coherent Thomson scattering (CTS) diagnostic, employing both quasioptical propagation and a homodyne detection scheme, was designed and installed on the HELIX source to measure fluctuations with wavelengths on the order of 1 mm. While testing a new antenna designed to directly excite finite k⊥ electrostatic waves in conjunction with a new electrostatic double probe, spontaneously occurring excited …

Population Growth And Planned Birth Policy, Yigang Zhang

All Dissertations

China's planned birth policy is based on 'population pessimism', which states population growth affects the income level negatively, though the role of population growth in cross-country growth regressions is ambiguous. There are 'population pessimism', 'population optimism', and 'population neutralism'. Also, a new concept 'demographic dividend' was raised in recent years, which states a rise in the rate of economic growth can be induced because of a rising share of working age people in a population while still holding 'population neutralism'. The planned birth policy results in a decreasing fertility rate, which slows down the population growth and changes the age …

Reciprocal Share-Alike Exemptions In Copyright Law, Guy Pessach

Cardozo Law Review

This article introduces a novel element to copyright law's exemptions' scheme, and particularly the fair use doctrine - a reciprocal share-alike requirement. I argue that beneficiaries of a copyright exemption should comply with a complementary set of ex-post reciprocal share-alike obligations that come on top of the exemption that they benefit from. Among other aspects, reciprocal share-alike obligations may trump contractual limitations and technological protection measures that are imposed by parties who relied on a copyright exemption in the course of their own use of copyrighted materials. Thus, fair use beneficiaries should be obliged to treat alike subsequent third parties …

Modeling The Relationship Between Air Quality And Intelligent Transportation System (Its) With Artificial Neural Networks., Dinesh Kumar Gupta 1965-

Electronic Theses and Dissertations

Environmental or air quality impacts of Intelligent Transportation Systems (ITS) are very difficult to measure. Some researchers have attempted to quantify the effects of individual ITS application on emissions; yet, the effects of ITS as a whole on ambient air quality have not been investigated. The objective of this research was to model the relationship between ITS and ambient air quality. The multiple Artificial Neural Networks (ANN) training with the data yielded a model for predicting the air quality. In addition, the ANN made the measurement of the effect of ITS on air quality possible. Data pertaining to sixty US …

St. Ambrose And The Architecture Of The Churches Of Northern Italy : Ecclesiastical Architecture As A Function Of Liturgy., Sylvia Crenshaw Schneider 1948-

Electronic Theses and Dissertations

This thesis argues that the architecture of the churches of northern Italy that were constructed during the fifth and sixth centuries reflected the influence and vision of Ambrose, bishop of Milan (374-397), whose spiritual authority, theologically and liturgically, militantly extended the ecclesiastical authority of the see of Milan. In particular, this thesis demonstrates that the hegemony of the see of Milan in northern Italy was implemented in the architectural accommodation of the distinctive Ambrosian liturgy of Milan. To develop this argument, this thesis has adopted an integrated approach to the political and ecclesiastical history of northern Italy in the fourth …

Limitations Of A True Random Number Generator In A Field Programmable Gate Array, Jennifer L. Brady

Theses and Dissertations

Random number generators are used in many areas of engineering, computer science, most notably in simulations and cryptographic applications. There are true random number generators (TRNG) and pseudo random number generators (PRNG). Only a true random number generator is secure because the output bits are non-repeating and nonreproducible. As society has become more dependent on electronic technology the need for true random number generators has increased due to processes that require encryption in everyday use. A fast true random number generator on a field programmable gate array presents digital designers with the ability to have the generator on chip. Since …