Digital Commons Network^™

Cladophora, Mass Transport, And The Nearshore Phosphorus Shunt , Aaron I. Dayton

Dissertations, Master's Theses and Master's Reports - Open

Excessive Cladophora growth in the Great Lakes has led to beach fouling and the temporary closure of nuclear power plants and has been associated with avian botulism and the persistence of human pathogens. As the growth-limiting nutrient for Cladophora, phosphorus is the appropriate target for management efforts. Dreissenids (zebra and quagga mussels) have the ability to capture particulate phase phosphorus (otherwise unavailable to Cladophora) and release it in a soluble, available form. The significance of this potential nutrient source is, in part, influenced by the interplay between phosphorus flux from the mussel bed and turbulent mixing in establishing …

Comparison Of Modal Analysis Results Of Laser Vibrometry And Nearfield Acoustical Holography Measurements Of An Aluminum Plate, Jennifer L. Potter

Dissertations, Master's Theses and Master's Reports - Open

Noise and vibration has long been sought to be reduced in major industries: automotive, aerospace and marine to name a few. Products must be tested and pass certain levels of federally regulated standards before entering the market. Vibration measurements are commonly acquired using accelerometers; however limitations of this method create a need for alternative solutions.

Two methods for non-contact vibration measurements are compared: Laser Vibrometry, which directly measures the surface velocity of the aluminum plate, and Nearfield Acoustic Holography (NAH), which measures sound pressure in the nearfield, and using Green’s Functions, reconstructs the surface velocity at the plate. The surface …

Dynamic Modeling Of Active Regeneration In Catalyzed And Non-Catalyzed Diesel Particulate Filters, Aamod Pethe

Dissertations, Master's Theses and Master's Reports - Open

Particulate matter (PM) emissions standards set by the US Environmental Protection Agency (EPA) have become increasingly stringent over the years. The EPA regulation for PM in heavy duty diesel engines has been reduced to 0.01 g/bhp-hr for the year 2010. Heavy duty diesel engines make use of an aftertreatment filtration device, the Diesel Particulate Filter (DPF). DPFs are highly efficient in filtering PM (known as soot) and are an integral part of 2010 heavy duty diesel aftertreatment system.

PM is accumulated in the DPF as the exhaust gas flows through it. This PM needs to be removed by oxidation periodically …

Effects Of Hibernation On Bone In Yellow-Bellied Marmots, Samantha J. Wojda

Dissertations, Master's Theses and Master's Reports - Open

Disuse osteoporosis is a problem for people with spinal cord injury or stroke, patients confined to bed rest, and astronauts exposed to microgravity. Unlike most mammals however, bears have been shown to prevent bone loss during hibernation, a seasonal period of disuse. Similarly, studies in ground squirrels indicate preservation of whole bone strength during hibernation, though evidence suggests there may be some increased osteocytic osteolysis. Uncovering the mechanism by which these animals prevent bone loss during hibernation could lead to an improved treatment for osteoporosis in humans. Marmots are a good animal model for these studies because they are small …

Afghanistan Connection : Heroin Production, Distribution, And Consumption , Brandon J. Swartz

Dissertations, Master's Theses and Master's Reports - Open

Heroin prices are a reflection of supply and demand, and similar to any other market, profits motivate participation. The intent of this research is to examine the change in Afghan opium production due to political conflict affecting Europe’s heroin market and government policies. If the Taliban remain in power, or a new Afghan government is formed, the changes will affect the heroin market in Europe to a certain degree. In the heroin market, the degree of change is dependent on many socioeconomic forces such as law enforcement, corruption, and proximity to Afghanistan. An econometric model that examines the degree of …

Public Preferences Of The Great Lakes Environment : A Lake Michigan Pilot Study, Fangming Liu

Dissertations, Master's Theses and Master's Reports - Open

The Great Lakes watershed is home to over 40 million people, and the health of the Great Lakes ecosystem is vital to the overall economic, societal, and environmental health of the U.S. and Canada. However, environmental issues related to them are sometimes overlooked. Policymakers and the public face the challenges of balancing economic benefits with the need to conserve and/or replenish regional natural resources to ensure long term prosperity. From the literature review, nine critical stressors of ecological services were delineated, which include pollution and contamination, agricultural erosion, non-native species, degraded recreational resources, loss of wetlands habitat, climate change, risk …

Assessing Drinking Water Quality At Source And Point-Of-Use : A Case Study Of Koila Bamana, Mali, West Africa , Mathew D. Seib

Dissertations, Master's Theses and Master's Reports - Open

Ensuring water is safe at source and point-of-use is important in areas of the world where drinking water is collected from communal supplies. This report describes a study in rural Mali to determine the appropriateness of assumptions common among development organizations that drinking water will remain safe at point-of-use if collected from a safe (improved) source. Water was collected from ten sources (borehole wells with hand pumps, and hand-dug wells) and forty-five households using water from each source type. Water quality was evaluated seasonally (quarterly) for levels of total coliform, E.coli, and turbidity. Microbial testing was done using the …

Performance Characteristics And Design Recommendations For Biomass-Burning Stoves Using Earthen Construction Materials , Nicholas H. Schreiner

Dissertations, Master's Theses and Master's Reports - Open

This report provides an analysis of the thermal performance and emissions characteristics of improved biomass stoves constructed using earthen materials. Commonly referred to as mud stoves, this type of improved stove incorporates high clay content soil with an organic binder in the construction of its combustion chamber and body. When large quantities of the mud material are used to construct the stove body, the stove does not offer significant improvements in fuel economy or air quality relative to traditional open fire cooking. This is partly because a significant amount of heat is absorbed by the mass of the stove reducing …

Retrofitting Boreholes Contaminated With Iron In Rural Uganda , Caleb T. Fader

Dissertations, Master's Theses and Master's Reports - Open

During my Peace Corps service as a community health liaison in rural Uganda I noticed that many improved water wells in our area had been abandoned. The communities described the water in these wells as being reddish in color, having a foul taste and odor, discoloring clothes and food, and not able to produce lather for washing.

Personal investigations and an initial literature search suggested that the primary contaminant was iron. The water in these wells had a low pH and a rusty metallic smell. The water produced early in the morning appeared very red but the water became more …

Rural Water System Sustainability : A Case Study Of Community-Managed Water Systems In Saramaka Communities , Gwynneth Smith

Dissertations, Master's Theses and Master's Reports - Open

Worldwide, rural populations are far less likely to have access to clean drinking water than are urban ones. In many developing countries, the current approach to rural water supply uses a model of demand-driven, community-managed water systems. In Suriname, South America rural populations have limited access to improved water supplies; community-managed water supply systems have been installed in several rural communities by nongovernmental organizations as part of the solution. To date, there has been no review of the performance of these water supply systems. This report presents the results of an investigation of three rural water supply systems constructed in …

Locating American Indian Sciences : A Report On The Development, Use, And Analysis Of A Survey Of Perceptions, John Eric Holmlund

Dissertations, Master's Theses and Master's Reports - Open

All students in the United States of America are required to take science. But what if there is not a science, but in fact a number of sciences? Could every culture, perhaps every different grouping of people, create its own science? This report describes a preliminary survey, the goal of which is to improve the teaching of science at American Indian Opportunities and Industrialization Center in Minneapolis, Minnesota by beginning to understand the differences between Western and American Indian sciences.

Development Of An Optimization Model For Biofuel Facility Size And Location And A Simulation Model For Design Of A Biofuel Supply Chain, Fengli Zhang

Dissertations, Master's Theses and Master's Reports - Open

To mitigate greenhouse gas (GHG) emissions and reduce U.S. dependence on imported oil, the United States (U.S.) is pursuing several options to create biofuels from renewable woody biomass (hereafter referred to as “biomass”). Because of the distributed nature of biomass feedstock, the cost and complexity of biomass recovery operations has significant challenges that hinder increased biomass utilization for energy production. To facilitate the exploration of a wide variety of conditions that promise profitable biomass utilization and tapping unused forest residues, it is proposed to develop biofuel supply chain models based on optimization and simulation approaches. The biofuel supply chain is …

General Catalog 2011-2012, Utah State University

University Catalogs

This catalog contains information on the Academic Departments and Programs as well as Course Descriptions for the above school year at Utah State University. To avoid large file downloads, the Academic Departments and Programs information is located in this file. The Course Description information is located in the secondary file.

Discriminating Emotions And Engaging Difficult Emotional Material: Implications For Process And Outcome In Written Disclosure, Stephanie L. Nassar

Electronic Theses and Dissertations

Written disclosure participants have experienced numerous psychological and physiological benefits, as compared to those who wrote about neutral topics (Baikie & Wilhelm, 2005; Corter & Petrie, 2011; Frattaroli, 2006; Pennebaker & Chung, in press). Given the beneficial results of expressive writing commonly found among healthy participants, exploration of this method was expanded to broader populations with mixed results. Researchers have attempted to provide a rationale for why, when, and with whom written disclosure works. As emotional clarity and experiential avoidance have been linked to psychological well-being, this study examined their relative contributions to written disclosure benefits. Participants self-reported on measures …

Meaning In Life, Depression, And Alcohol Use In A College Sample, Lindsay Wilson Schnetzer

Electronic Theses and Dissertations

The meaning construct has been researched over the last several decades, yielding important empirical advancements in our understanding of its impact on psychological well-being. Comdenominators among various definitions of meaning and life purpose are (1) an emphasis on the significance of life (2) an awareness of coherence, and (3) the fulfillment of unique purpose. Research suggests that meaning and depression are related yet distinct variables, that depression and alcohol abuse are comorbid, and that meaning and alcohol use are significantly associated. Because there is minimal research examining relations among all three variables, and because there have been inconsistent findings with …

Use Of Structure-And Ligand-Based Drug Design Tools For The Discovery Of Small Molecule Inhibitors Of Cysteine Proteases For The Treatment Of Malaria And Sars Infection, Falgun Shah

Electronic Theses and Dissertations

A wide array of molecular modeling tools were utilized to design and develop inhibitors against cysteine protease of P. Falciparum Malaria and Severe Acute Respiratory Syndrome (SARS). A number of potent inhibitors were developed against cysteine protease and hemoglobinase of P. falciparum , referred as Falcipains (FPs), by the structure-based virtual screening of the focused libraries enriched in soft-electrophiles containing compounds. Twenty one diverse, non-peptidic, low micromolar hits were identified. A combined data mining and combinatorial library synthesis approach was performed to discover analogs of virtual screening hits and establish the structure-activity relationships (SAR). However, the resulting SAR of the …

New Synthetic Methodologies For The Construction And Optimization Of Natural Products, Amir E. Wahba

Electronic Theses and Dissertations

Toxicity associated with bioactive natural products is considered as a major obstacle in the process of drug discovery. Manzamine A (MA) is one such candidate that requires optimization to overcome the toxicity problem. The manzamine alkaloids represents a unique class of natural products that have shown a diverse range of bioactivities including antimicrobial, antiparasitic, cytotoxicity, anti-inflammatory, pesticidial, and was shown to possess activity against HIV-1 and AIDS opportunistic infections. The greatest potential for the manzamine alkaloids appears to be against malaria and neuroinflammation. Experimental and modeling studies suggested that the planer ?-carboline moiety can act as DNA intercalator and hence …

Characterization Of The Engineering Properties And Economic Potential Of The Transitional Clay Unit Of The Ripley Formation, Northeast Mississippi, Richard Christopher Wheeler

Electronic Theses and Dissertations

Expansive soils, throughout Mississippi and the U.S., have long been a source of problems within the engineering and construction industries, leading to billions of dollars in damage annually. Along with being a source of problems, the clays throughout Mississippi are also of economic importance, being mined for a variety of uses. In this study, the engineering properties of the transitional clay facies of the Ripley Formation are studied, to characterize the swell potential of the transitional clay, and to assist with the evaluation of the possible commercial uses of the soil. The transitional clay is an Upper Cretaceous unit characterized …

Teaching Acting: Not As Simple As It Looks, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

War Between North And South – In Literature, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Lana Hagan Teaching Acting A Hard Act To Follow, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Statistician Recommends A Dose Of Skepticism, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Siue’S Carr Teaches Tomorrow’S Public Servants, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Dennis Mares Has A Clue About Criminal Gangs, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Ruckh Studies How We Learn, Teach And Act, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Gussie Klorer Uses Art To Help Children Heal, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Mcclinton Teaches Sensitivity Toward Other Cultures, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

The Decentralization Of Immigration Law: The Mischief Of § 287(G), Marissa B. Litwin

Seton Hall Law Review

No abstract provided.

Tent Cities And Rluipa: How A New Religious-Land-Use Issue Aggravates Rluipa, Kelli Stout

Seton Hall Law Review

No abstract provided.

Foreword, Jordan Paradise

Seton Hall Law Review

No abstract provided.