Digital Commons Network^™

Expanding Planning Public Participation Outreach Through Social Networking, Wesley Brian David Harris

Master's Theses

Public participation is not a form of civic responsibility that it once was. With not only fewer people taking part in the public participation process, there is a trend towards an older (45 years and older) group of residents that come to such meetings or workshops. Plans, such as Specific Plans or General Plans often take years to implement and require all generations to give feedback on what is needed for the future. Additionally, within the last decade, there has been a rise in social media websites such as Facebook and Twitter. These websites emerged as informal virtual places for …

Assessment And Improvement Of Fire Resiliency For Structures Located In The Wildland-Urban Interface, Allen L. Meskimen

Master's Theses

The purpose of this research was first to study the Wildland-Urban Interface and Wildland-Urban Intermix (WUI) fire problem, and then to design, develop and implement improved fire assessment and fire protection features for structures in the these interface fire-prone areas. The findings included that several areas of the world are prone to devastating fires that claim lives and destroy property, and their fire problems continue to exacerbate. None of these compare to the property loss experienced in Southern California due to its vast development in fire prone areas. It is because of the continuing huge property loss and frequency of …

Harmful Algal Bloom (Hab) Communities And Co-Occurring Species In Relation To Near Shore Ocean Dynamics In San Luis Bay, California, Samuel Christopher Rankin

Master's Theses

The occurrence of phytoplankton taxa, with special focus on harmful algal bloom (HAB) taxa, was monitored for one year off the central coast of California to examine both their co-occurrence and physical and chemical variables influencing their temporal patterns. Bi-weekly samples were taken from October 6, 2008 to October 5, 2009 in San Luis Obispo Bay, CA. Canonical correspondence analysis (CCA) of weekly samples indicated that 46.1% of the variability in species abundance was explained by the variables in the model, higher than previous reports. Cluster analysis divided phytoplankton communities into HAB and non-HAB groups of species, while shared distribution …

Irish Hills Natural Reserve Conservation Plan Update, Bijan N. Riley

Master's Theses

The Irish Hills Natural Reserve Conservation Plan is a unique component of the City
of San Luis Obispo’s green belt that provides a number of hiking and mountain biking
trails within a short distance from the downtown core as well as ensures that valuable
habitat be preserved into the future. As the subject of my thesis project, IHNR presented the opportunity to pursue an aspect of city planning that can often be over-looked and, conservation planning. Conservation planning is an important element of the planning profession in that it incorporates such elements into the future growth of cities. With proper …

Recommendations For Economic Development In Guadalupe, Ca, Larissa Requa Heeren

Master's Theses

It is recommended that the City of Guadalupe prepare and implement a small-scale business expansion and retention program using existing service providers in the area.  This type of program model seems to hold the most potential for Guadalupe. A mixed-methods approach including in-depth cases studies of existing economic development programs and an analysis of opportunities and constraints in Guadalupe informs a set recommendations for future economic development in the City. Data was collected in three phases: short interviews with a variety of economic development program staff, short interviews with Guadalupe business owners and City officials and in-depth interviews with staff …

Short-Distance Translocation Of The Northern Pacific Rattlesnake (Crotalus O. Oreganus): Effects On Volume And Neurogenesis In The Cortical Forebrain, Steroid Hormone Concentrations, And Behaviors, Matthew L. Holding

Master's Theses

The hippocampus of birds and mammals has been shown to play a crucial role in spatial memory and navigation. The hippocampus exhibits plasticity in adulthood in response to diverse environmental factors associated with spatial demands placed on an animal. The cortical telencephalon of squamate reptiles has been implicated as a functional homologue to the hippocampus. This study sought to experimentally manipulate the navigational demands placed on free-ranging northern Pacific rattlesnakes (Crotalus o. oreganus) to provide direct evidence of the relationship between spatial demands and neuroplasticity in the cortical telencephalon of the squamate brain. Adult male rattlesnakes were radio-tracked …

Hydrologic Alteration And Sedimentation In The Upper Henry's Fork Watershed, Amelie Jeanne Charnaux

Master's Theses

Abstract

Hydrologic Alteration and Sedimentation in the Upper Henry’s Fork Watershed

Amelie Jeanne Charnaux

The Henry’s Fork of the Snake River is venerated by the global recreational community as one of the finest trout fishing streams on the planet. Furthermore, this remarkable waterway flows within the bounds of one of the most important ecological corridors in the equally world-renowned Greater Yellowstone Ecosystem. While the recreational and biological features of this corner of Idaho may capture the interest of the broader public, the waterway is equally significant to the livelihoods of local interests, such as the ranching and farming communities. With …

Low Cycle Fatigue Behavior Of Concrete With Recycled Concrete Aggregates, Paul Mark Gordon

Master's Theses

A comparison of concrete containing recycled concrete coarse aggregates and natural coarse aggregates subjected to high strain, low cycle compressive fatigue is presented. Using a strain based feedback control loop, concrete cylinders are compressed at 15µε/s to a specified strain then unloaded to zero stress for 10 cycles. After cycling, all samples are loaded to a strain of 0.008. Direct concrete material variables are the water to cement (w/c) ratio, taken as 0.60, 0.45, and 0.39, and percent coarse recycled concrete aggregate content, varied from zero to 100 percent. The primary testing variable is the specified unloading strain. Unloading strains …

Development Of An Open Source Prosthetic Hand Platform, Scott James Garrett

Master's Theses

Development of an Open Source Prosthetic Hand Platform

Scott Garrett

In the field of upper extremity prosthetic devices, advancements in technology drive the design of products which are becoming capable of restoring the lost functions of the native hand. While several dexterous devices have been developed to serve this purpose, they remain prohibitively expensive and thus are not a viable option for many upper extremity amputees. To address this problem a prosthetic hand platform was developed utilizing the open source Arduino microcontroller and off-the-shelf electrical components. Using these resources, a novel finger actuation mechanism was developed to show how …

Impact Of Exercise On Brain Responses To Visual Food Cues: An Fmri Study, Nero Erezi Evero

Master's Theses

On the basis of a strong body of data, the Institute of Medicine currently recommends at least 60 minutes of exercise per day to prevent body weight gain overtime.  Previous studies have shown that there is no compensatory increase in food intake with this dose of exercise. Ultimately, the brain decides whether to alter food intake.  Surprisingly, no published studies have assessed the impact of exercise on brain activation.  Using functional magnetic resonance imaging (fMRI) and an appetite questionnaire, we investigated the effects of a single bout of aerobic exercise on brain responses to visual food cues and subjective appetite …

The Effectiveness Of Milestone Versus Duration Projects In A University Environment, Nicholas James Mehas

Master's Theses

The Critical Path and Critical Chain project management methodologies have different and unique characteristics; both methods are used by project managers to manage projects. This research develops and implements two methodologies, milestones (critical path) versus duration (modified critical chain), in a university environment. The implementation of the two methods allows for the comparison of the effectiveness of both styles. The intent is to determine if there is a significant difference in the project management methodologies in a university setting. The design of both projects allows for easy implementation and the ability to easily record determined measureable statistics.

Flood Capacity Improvement Of San Jose Creek Channel Using Hec-Ras, Erland Kragh Mowinckel

Master's Theses

The Santa Ynez Mountains of Santa Barbara County, California, have seen many major storm events during the past century.  San Jose Creek, which runs out of these mountains, through the town of Goleta, and into the Pacific Ocean, has experienced several intense flood events as a result.  The lower portion of the creek was diverted in 1960 to alleviate flooding through Old Town Goleta.  However, flooding still occurred in the storms of 1995 and 1998.  This study incorporates a hydraulic analysis component of a project aimed at re-designing this diverted portion of the channel.  It presents an analysis of modifications …

City Of Mcfarland Land Use Element Update, Jeffrey James Ballantine

Master's Theses

The City of McFarland, CA is in the process of updating its General Plan and identified updating the land use element as the first step in this process. This land use element consists of a land use diagram, land use standards, and goals, policies, and programs. These components of the document are based upon community feedback as well as upon analysis of case studies and state and regional guidelines. The final plan accommodates for increased residential densities, a mixture of adjacent land uses, a greenbelt, and large areas of land adjacent to Highway 99 for commercial and industrial use.

Anaerobic Co-Digestion Of Microalgae With Food Waste And Wastewater Sludge, Ruth E. Spierling

Master's Theses

This research sought to optimize anaerobic co-digestion of microalgae biomass harvested from a wastewater treatment pond facility with locally-available wastes.  The goal was to produce high methane yields and stable digestion without the need for supplemental alkalinity addition.  A key research question was if algae digestion could be improved via the synergistic effects of co-digestion.  Cell disruption to increase digestibility was not pursued due to its relatively high mechanical complexity and high energy use.  For the wastewater treatment ponds studied, the most practical co-substrates identified were municipal wastewater sludge and food waste (sorted organic municipal waste).  Although wastewater sludge does …

Studying Milk Coagulation Kinetics With Laser Scanning Confocal Microscopy, Image Processing, And Computational Modeling, Richard Joseph Hennessy

Master's Theses

The kinetics of milk coagulation are complex and still not well understood. A deeper understanding of coagulation and the impact of the relevant factors would aid in both cheese manufacturing and also in determining the nutritional benefits of dairy products. A method using confocal microscopy was developed to follow the movement of milk fat globules and the formation of a milk protein network during the enzyme-induced coagulation of milk. Image processing methods were then used to quantify the rate of coagulation. It was found that the texture of the protein network is an indicator of the current status of the …

Characterization And Implementation Of A Decellularized Porcine Vessel As A Biologic Scaffold For A Blood Vessel Mimic, Aubrey N. Smith

Master's Theses

Every 34 seconds, someone in the United States suffers from a heart attack.  Most heart attacks are caused by atherosclerotic build up in the coronary arteries, occluding normal blood flow.  Balloon angioplasty procedures in combination with a metal stent often result in successful restoration of normal blood flow.  However, bare metal stents often lead to restenosis and other complications.  To compensate for this problem, industry has created drug-eluting stents to promote healing of the artery wall post stenting.  These stents are continually advancing toward better drug-eluting designs and methods, resulting in a need for fast and reliable pre-clinical testing modalities. …

Implementation And Assessment Of Hyperglycemic Conditions For The Creation Of A Diabetic Blood Vessel Mimic, Vikramaditya Mediratta

Master's Theses

Introduction: Diabetes Mellitus is a metabolic disorder that affects a person’s ability to either produce insulin (Type I diabetes mellitus) or properly use insulin (Type II diabetes mellitus) in order to maintain adequate blood glucose levels. The most severe diabetic complications arise due to hyperglycemia – a state of extremely high blood glucose levels – such as, coronary artery disease (CAD), in which coronary stent therapy is a popular method of treatment. However, research has shown a high rate of in-stent restenosis in diabetic patients with CAD, most likely due to activation of cellular adhesion molecules on endothelial cells exposed …

The Ma-10 Cell Line As A Model Of Insl3 Regulation And Leydig Cell Function, Mary E. Strong

Master's Theses

Leydig cells produce testosterone in response to luteinizing hormone (LH) via the cyclic adenosine monophosphate (cAMP)/protein kinase A pathway. Additionally, these cells are responsible for producing insulin-like peptide 3 (INSL3), a peptide hormone that is essential for testicular descent. The insl3 promoter in Leydig cells can be activated by cAMP through the transcription factor Nur77, which has also been shown to regulate the promoters of the steroidogenic enzymes, cyp17 and 3b-hsd. While the mechanism of LH action on testosterone production is well characterized, the effect of LH on insl3 abundance has yet to be shown directly. The MA-10 …

An Optimization Approach To Employee Scheduling Using Fuzzy Logic, William G. Spence

Master's Theses

An Optimization Approach to Employee Scheduling Using Fuzzy Logic

William G. Spence

Selection of sales employees is critical because the sales employees represent the company’s image, competitive advantage, technology, and values. In many service systems the majority of consumer contact is with the sales department. Since there are different types of customers, scheduling quality salespersons who can adequately help consumers may affect revenue.

This thesis proposes a new methodology for the scheduling of employees in a service system. The methodology uses Fuzzy Logic to calculate possible sales and Linear Programming to create an optimal schedule. This approach enables the rating …

Seawater/Wastewater Production Of Microalgae-Based Biofuels In Closed Loop Tubular Photobioreactors, Joshua Bradley Lowrey

Master's Theses

The push for alternatives to petroleum fuels has forced researchers to look for highly productive, renewable, non-food resources.  The advantages of using microalgae instead of traditional oil crops for biofuel production include high oil yields, rapid reproductive rates, and versatile growing requirements.  In order to reduce the cost of producing microalgae based biofuels, wastewater has been used as a nutrient source instead of specialized plant nutrients.  The purpose of this study was to compare the relative effectiveness of different combinations of microalgae strain and dairy wastewater for increasing biomass.  The methods for monitoring growth included optical density, cell counting, biomass …

Underwater Localization And Tracking Of Physical Systems, Patrick E. Carroll

Master's Theses

In this paper, we investigate the problem of localizing an underwater sensor node basedon message broadcasting from multiple surface nodes. With the time-of-arrival measurementsfrom a DSP-based multicarrier modem, each sensor node localizes itself based on the traveltime differences among multiple senders to the receiver. Using one-way message passing, such asolution can scale to accommodate a large number of nodes in a network. We consider the issuefrom not only the physical layer, but also at the node processing layer by incorporating a trackingsolution. We present simulation results as well as preliminary testing results in a swimming poolwith both stationary and moving …

Efficacy Of Different Retention Types Post-Orthodontic Treatment, Monica Sonia Kaur Dosanjh

Master's Theses

Introduction: Despite major advances in orthodontic tooth movement, orthodontic retention still remains a major problem. It has been estimated that only 10% of the population who have received orthodontics are still in acceptable occlusion as judged by orthodontists 20 years after retention. (Little, Riedel et al. 1988) In addition, very little is known about patient’s perception in relation to orthodontic relapse. Therefore, the goal of this study was to evaluate the efficacy of 3 different types of retainers (Hawley removable, Essix removable and Fixed) of the mandibular and maxillary anterior sextant and to assess patient perception of crowding. Materials and …

L1 Adaptive Control Of Uncertain Nonlinear Systems With Dynamic Constraints: As Applied To Commercial Aircraft Engines, Jennifer Hacker

Master's Theses

L1 adaptive control for a turbofan commercial aircraft engine is developed and applied in the presences of constraint limits. Turbofan engines are a highly complex system, with a wide variety of dynamics, operating under constantly changing environmental conditions. In aircraft turbofan operation many constraint requirements must be met. When constraints, such as rotor speeds, pressures, and temperatures, exceed the prescribed limits it can decrease the life expectancy of the engine, cause component failure, or even total engine failure. Additionally stall, also known as compressor surge, which occurs when the compressor is unable to work against incoming air resulting in flow …

An Analysis Of Technology And Management Gaps For Groundnut Producers In Kenya, Angelista Kihaga Ms

Master's Theses

No abstract provided.

Compost Tea And Milk To Suppress Powdery Mildew (Podosphaera Xanthii) On Pumpkins And Evaluation Of Horticultural Pots Made From Recyclable Fibers Under Field Conditions, Matthew Debacco

Master's Theses

Powdery mildew (caused by Podosphaera xanthii) a common problem for vegetable growers, and the cost of controlling the disease with fungicides to the growers and the environment is high. An alternative approach for control using methods approved for organic production are sprays based on teas made from compost, both actively aerated (ACT) and non-aerated (NCT) compost teas, and sprays made from diluted milk. We evaluated these sprays for control of powdery mildew on pumpkins in field trials in Connecticut in 2008 and 2009, and in greenhouse trials in 2009. We also evaluated the compost teas and milk in the greenhouse …

Optimization Of Culture Conditions For Equine Bone Marrow Mesenchymal Stem Cells And Their Differentiation Into Osteoblasts, Elizabeth R. Ackell

Master's Theses

The horse industry is a multibillion dollar industry where the health of the animals is of great focus for horse owners.  Bone fractures are an aspect of equine health failure that is continually catastrophic and often fatal.  In addition to discussing fracture, this review will outline the process by which bone tissue is regularly maintained and self-healed.  Also, traditional methods of healing fractures that have limited use and success will be discussed.  The lack of success that is common with the traditional methods has led to the need for additional research to identify more successful and economical ways of healing …

Team Physicians’ Practice Beliefs Regarding The Recognition And Treatment Of Exertional Heat Stroke, Lindsey Mcdowell

Master's Theses

Recognition and Treatment of Exertional Heat Stroke: A Perspective from the Team Physician

McDowell LH, Mazerolle SM, Casa DJ, Pagnotta KD, Armstrong LE: University of Connecticut, Storrs, CT

Context: Rectal temperature assessment (T_re) and cold-water immersion (CWI) are the gold standards for the recognition and treatment of exertional heat stroke (EHS), but athletic trainers (ATs) are reluctant to implement them regularly into clinical practice. ATs work under the guidance of a physician, but little information is available regarding the perceptions of the aforementioned methods from the team physician’s perspective. Objective: To investigate team physicians’ practice beliefs regarding the …

Rate-Dependent Behavior Of Clay, Harry F. Martindale Iv

Master's Theses

This thesis presents a strain-rate dependent two-surface plasticity constitutive model for clays based on the critical-state soil mechanics.  The model reproduces the mechanical response of clays under multi-axial loading conditions and predicts both drained and undrained behaviors at small and large strains.  Model parameter values are determined for Boston Blue Clay, London Clay and Kaolin Clay.  The performance of the model in simulating the mechanical response of clays is demonstrated for a variety of strain rates. Sensitivity of each model parameter is checked for ±5, ±10 and ±20% of the deterministic values. Probabilistic analysis using Monte Carlo simulations were done …

Noninvasive Assessment Of Joint Motion Over Long Durations: System Evaluation And Data Analysis Methods, Maria J. Qadri

Master's Theses

The development, progression, and treatment of degenerative musculoskeletal diseases, such as carpal tunnel and shoulder impingement syndromes, may be better characterized when joint motions are assessed over long durations outside clinical, laboratory, or rehabilitation settings that involve standardized assessment, exercise protocols, and/or regimented movements. Assessment methods for human movement capture beyond laboratory or clinical experiments are typically limited to short capture times of less than one hour. Noninvasive, long-duration measurements of joint motion in occupational settings provides more insight into movement patterns and quantitative assessments regarding joint usage, which lead to a better understanding of the cumulative effects associated with …

An Examination Of Unwritten Rule Development In Men’S Ice Hockey, Joshua M. Lupinek

Master's Theses

This research study sought to better understand at what point in the player development process did aspiring professional hockey players learn of, as well as consent to, ice hockey’s unwritten rules.  How this process occurred was also under examination.  While some research had been conducted relative to the development of unwritten rules within sport, little research to date had focused on ice hockey’s unwritten rules and none had focused on the factors associated with their development.  Research in other sport areas has indicated that knowledge and consent of unwritten rules is expected in the development of a professional athlete.  As …