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Graduate Theses, Dissertations, and Problem Reports (ETD)

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Sports Investment, Beliefs About Food-Related Behaviors, And Engagement In Problematic Eating Behaviors During Adolescence, Kaitlyn A. Ferris Jan 2015

Sports Investment, Beliefs About Food-Related Behaviors, And Engagement In Problematic Eating Behaviors During Adolescence, Kaitlyn A. Ferris

Graduate Theses, Dissertations, and Problem Reports (ETD)

Involvement in sport is the most widely reported organized activity among children and adolescents. To date, organized sports also represent the only organized activity examined in conjunction with youths' eating behaviors. Organized sports serve as contexts where messages about healthy eating and body image are communicated, and adolescents' beliefs about food and their bodies' degree of thinness and muscularity has the potential to be amplified in such settings as youth strive to perform at high levels during athletic competitions. However, inconsistency in the measurement of both organized sports participation and adolescents' engagement in problematic under- and over-eating behaviors has resulted …


Influence Of Mycorrhizal Fungi On Soil Geochemistry And Plant Uptake Of Cadmium And Zinc: Greenhouse And Soil Studies Of Palmerton Zinc Superfund Site, Pennsylvania, U.S.A, Christian X. Figueroa Jan 2015

Influence Of Mycorrhizal Fungi On Soil Geochemistry And Plant Uptake Of Cadmium And Zinc: Greenhouse And Soil Studies Of Palmerton Zinc Superfund Site, Pennsylvania, U.S.A, Christian X. Figueroa

Graduate Theses, Dissertations, and Problem Reports (ETD)

The application of bioremediation as a means to ameliorate potentially toxic metals from contaminated soils has been on the forefront of sustainable technologies in the field of environmental studies. Conventional methods available for soil remediation are employed in both in situ or ex situ and these are: soil flushing, solidification/stabilization, vitrification, electrokinetics, chemical reduction/oxidation, soil washing, and excavation. In general, these technologies are limited by their applicability to small areas and the high costs to execute. The use of biota, in particular fungi and trees, has been an emerging low-cost and "environmentally-friendly" alternative to conventional technologies. In this study, I …


A Bayesian Approach To Reduced Order Modeling In Catalytic Steam Reforming, Evan D. Ford Jan 2015

A Bayesian Approach To Reduced Order Modeling In Catalytic Steam Reforming, Evan D. Ford

Graduate Theses, Dissertations, and Problem Reports (ETD)

An investigation was conducted to determine the feasibility of developing a reduced order model capable of accurately predicting the behavior of steam methane reforming. An emerging model reduction technique based on examining causal relationships was applied to the reaction network developed by Xu and Froment to eliminate unnecessary intermediate species[1]. A dynamic discrepancy term was included in the reduced network to quantify the error incurred from the network reduction. This discrepancy is stochastic in nature, and a Markov Chain Monte Carlo (MCMC) sampling routine coupled with Bayesian statistical methods was used to calibrate the parameters of the discrepancy by comparison …


Defining Cardiovascular Dysfunction In The Metabolic Syndrome: Therapeutic And Nutritional Approaches To Treatment, Sara Brooks Fournier Jan 2015

Defining Cardiovascular Dysfunction In The Metabolic Syndrome: Therapeutic And Nutritional Approaches To Treatment, Sara Brooks Fournier

Graduate Theses, Dissertations, and Problem Reports (ETD)

Metabolic syndrome (MetS) is a complex disease state defined by the manifestation of a cluster of cardiovascular (CV) risk factors including, abdominal obesity, dyslipidemia, hypertension, and hyperglycemia. Individuals afflicted with MetS have been demonstrated to assume the burden of a 3-fold increased risk of cardiovascular disease (CVD) mortality, myocardioal infarction, stroke, type II diabetes (T2DM) and all cause mortality. The national prevalence of hyperglycemia and abdominal obesity paralleled by a surge in sedentary lifestyle behavior underscore the importance of early identification and treatment of MetS. Deleterious adaptations to both vascular and myocardial structure and function have been demonstrated in MetS. …


The Eccentricities Of A Fading Southern Belle: Personalizing The Iconic Role Of Amanda Wingfield In Tennessee Williams' "The Glass Menagerie", Stephanie Freeman Jan 2015

The Eccentricities Of A Fading Southern Belle: Personalizing The Iconic Role Of Amanda Wingfield In Tennessee Williams' "The Glass Menagerie", Stephanie Freeman

Graduate Theses, Dissertations, and Problem Reports (ETD)

This document chronicles, from the first read-through to the final curtain call, the process of diving into the role of Amanda Wingfield from Tennessee Williams' 'The Glass Menagerie'. It details my path toward character development (personalizing Amanda's point of view and drawing on others for inspiration), the rehearsal process, and ultimately how I couldn't help but be changed by the experience. The opportunity to play one of Tennessee Williams' most famous women brought with it a myriad of emotions at the start---from excitement (due to the fact that this was a dream come true for a thesis role)---to absolute incredulity …


Does Self Love Lead To Spying On Ex-Partners On Facebook? The Examination Of Ego Factors In Facebook Stalking, Brittany Furbee Jan 2015

Does Self Love Lead To Spying On Ex-Partners On Facebook? The Examination Of Ego Factors In Facebook Stalking, Brittany Furbee

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study aims to identify predictable personality traits that can influence ones likelihood to stalk an ex-partner on Facebook. Particularly, the study focuses on the traits related with self-concept, given that motivations of using social network sites (SNS) are highly associated with self-concept. This includes self-esteem, two types of narcissism (grandiose and vulnerable narcissism), and self-efficacy. Furthermore, in order to better assess the predictability of these factors, this study considers other control variables while assessing predictability of personality traits, such as Facebook usage, length of the relationship, and time since the break- up, drawing from both social psychology and SNS …


A Consensus Based Decentralized State Estimation For Power Distribution Networks, Varun Garaga Jan 2015

A Consensus Based Decentralized State Estimation For Power Distribution Networks, Varun Garaga

Graduate Theses, Dissertations, and Problem Reports (ETD)

This thesis presents a new Decentralized State Estimation algorithm using agents directed mainly to distribution power systems. This new algorithm solves problems that occur when one tries to estimate the state of the distribution power systems. By various reasons such as high levels of quality of service, automation capabilities and comparatively less size, those problems do not occur so frequently on the transmission systems. A consensus based static state estimation strategy for radial power distribution systems is proposed in this research. This thesis concentrates on the balanced systems.;There are buses acting as agents using which we can evaluate the local …


Three Essays On Remittances, Institutions, And Economic Development, Durga Gautam Jan 2015

Three Essays On Remittances, Institutions, And Economic Development, Durga Gautam

Graduate Theses, Dissertations, and Problem Reports (ETD)

Does the inflow of remittances affect the quality of institutions in the recipient countries? This question is important because economists have stressed that good economic institutions, particularly those in the public sector, are instrumental for economic development and growth. The literature on remittances, however, does not document a thorough analysis and compelling evidence of the relationship between these private financial transfers and institutional quality. Unlike other kinds of international capital flows, remittances inflows are not mediated by the government of recipient countries. Remittances are not taxed directly and so are not a source of revenue for the government. Then a …


A Comparative Study Of E-Tail Service Quality Scale In Usa And India, Usha K. Geddam Jan 2015

A Comparative Study Of E-Tail Service Quality Scale In Usa And India, Usha K. Geddam

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this research is to measure the e-tail service quality of online retailers by considering survey responses from two different geographical locations, USA and India. This research focuses primarily on (i) Collecting data and performing factor analysis to refine initial scale items, developed by Qianqian, followed by reliability tests for checking the scale's validity by considering responses received from survey participants in two different geographical regions; (ii) Testing of hypothesis based on the construct of the scale items of the initial scale and the scale obtained in this research; (iii) Performing regression analysis to demonstrate the impact of …


Using Growth Curve Modeling To Describe Differential Patterns Of Change In College Level Student Academic Achievement Across Four Years Based On Degree Attainment And Mathematics Remediation, Zornitsa Georgieva Jan 2015

Using Growth Curve Modeling To Describe Differential Patterns Of Change In College Level Student Academic Achievement Across Four Years Based On Degree Attainment And Mathematics Remediation, Zornitsa Georgieva

Graduate Theses, Dissertations, and Problem Reports (ETD)

There is a focus on increasing the number of college degrees on national and state levels and a move toward performance-based funding for institutions of higher education. With these shifts, institutions need to study not only student persistence but student progression toward degree completion as well. This institutional case study of a single liberal arts four-year institution utilized academic momentum theory to examine college student academic performance trajectories across four years. Academic momentum theory poses that student initial academic progress defines a trajectory of subsequent progress and degree completion. Growth curve modeling was used to examine changes in student performance …


The Effects Of Modest Improvement In Pellet Quality On Tom Turkey And Straight-Run Broiler Performance, With Focus On Experimental Design, Brian Gregory Glover Jan 2015

The Effects Of Modest Improvement In Pellet Quality On Tom Turkey And Straight-Run Broiler Performance, With Focus On Experimental Design, Brian Gregory Glover

Graduate Theses, Dissertations, and Problem Reports (ETD)

Improving the crumble/pellet percentage of feed has been argued to be difficult to obtain in the commercial industry due to the necessity of feed mills producing adequate feed volume within a time constraint. Poultry research often utilizes small numbers of birds per pen or experimental unit that may affect the estimation of variance components, potentially producing pen performance metrics that are less valuable for industry guidance. In Experiment 1, diets were manufactured to maintain nutrient availability and vary only in crumble/pellet percentage (standard = 40% pellets, improved = 70% pellets). The two dietary treatments were then fed to Hybrid Converter …


Middle And High School Science Teachers' Attitudes Toward Nanotechnology And Intention To Implement It In Science Classrooms, Nadira I. Ghattas Jan 2015

Middle And High School Science Teachers' Attitudes Toward Nanotechnology And Intention To Implement It In Science Classrooms, Nadira I. Ghattas

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study was designed to determine the relationship between attitudes toward nanotechnology and the intention of implementing it in science classrooms; to detect the relationship between attitudes and other influential factors (knowledge and self-confidence, professional development, professional context, personal research experience, and personal practice of bringing nanotechnology in science classrooms); to highlight the salient attitudes of science teachers toward nanotechnology and implementing its related content, materials, and activities in science classrooms; and to identify the salient factors that would facilitate the process of integrating nanotechnology in science classrooms.;Science Teachers' Attitudes toward Nanotechnology (STAT-N) survey and semi-structured interview were both used …


Cloud Implementation Of Design Software For Strengthening Of Reinforced Concrete Member, Sucharitha Koleti Jan 2015

Cloud Implementation Of Design Software For Strengthening Of Reinforced Concrete Member, Sucharitha Koleti

Graduate Theses, Dissertations, and Problem Reports (ETD)

The design of Fiber Reinforced Composite (FRP) which has emerged as an effective alternative to strengthen concrete structures, using traditional approaches, involves a set of complex design procedures to strengthen a concrete member. The design procedures are classified as a three step processes to build an intuitive and user friendly web application. The design software incorporated in the aforementioned application solves for strengthening of Reinforced Concrete (RC) Beams and Columns. This application has been developed as an add-on to the existing Computer Aided Design Environment to Composites (CADEC). It has been built on the .Net platform in compliance with the …


Assessment Of Molecular Action Of Direct Gating And Allosteric Modulatory Effects Of Carisoprodol (Somartm) On Gaba A Receptors, Manoj Kumar Jan 2015

Assessment Of Molecular Action Of Direct Gating And Allosteric Modulatory Effects Of Carisoprodol (Somartm) On Gaba A Receptors, Manoj Kumar

Graduate Theses, Dissertations, and Problem Reports (ETD)

Carisoprodol is a centrally acting skeletal muscle relaxant frequently prescribed for the treatment of acute musculoskeletal conditions. Recreational use of carisoprodol is an increasing problem. Recent reports highlight the dangers involved in carisoprodol abuse, including severe withdrawal leading to seizures and death. Indeed, carisoprodol has been placed into schedule IV drug at federal level effective January 11, 2012 considering its alarming abuse rate. Until recently, it was widely accepted that the sedative effects of carisoprodol were due predominantly to its metabolite, meprobamate. Our lab recently concluded, that carisoprodol itself, at low concentrations allosterically modulates and at higher concentrations directly activates …


Fault Tolerance Analysis Of L1 Adaptive Control System For Unmanned Aerial Vehicles, Kiruthika Krishnamoorthy Jan 2015

Fault Tolerance Analysis Of L1 Adaptive Control System For Unmanned Aerial Vehicles, Kiruthika Krishnamoorthy

Graduate Theses, Dissertations, and Problem Reports (ETD)

Trajectory tracking is a critical element for the better functionality of autonomous vehicles. The main objective of this research study was to implement and analyze L1 adaptive control laws for autonomous flight under normal and upset flight conditions. The West Virginia University (WVU) Unmanned Aerial Vehicle flight simulation environment was used for this purpose. A comparison study between the L1 adaptive controller and a baseline conventional controller, which relies on position, proportional, and integral compensation, has been performed for a reduced size jet aircraft, the WVU YF-22. Special attention was given to the performance of the proposed control laws in …


The Nature Of Magnetic Reconnection At The Dayside Magnetopause, Colin Michael Komar Jan 2015

The Nature Of Magnetic Reconnection At The Dayside Magnetopause, Colin Michael Komar

Graduate Theses, Dissertations, and Problem Reports (ETD)

Magnetic reconnection is a phenomenon that occurs in hot ionized gases, or plasmas, whereby oppositely directed magnetic field components break and cross-connect, converting energy stored in the magnetic fields to plasma motion and heat. Reconnection occurs between Earth's magnetic field and interplanetary magnetic fields (IMF) carried by the solar wind, plasma emanating from the sun. Reconnection occurs at the sunward boundary of Earth's magnetosphere, the region of space that is dominated by Earth's magnetic field. However, predicting the properties of reconnection at this boundary, including basic considerations such as where reconnection occurs and how efficiently, remain an unsolved problem.;In this …


Persuasion, Police, And Public Safety: Message Framing, Compliance, And Perceptions Of Law Enforcement, Alexander L. Lancaster Jan 2015

Persuasion, Police, And Public Safety: Message Framing, Compliance, And Perceptions Of Law Enforcement, Alexander L. Lancaster

Graduate Theses, Dissertations, and Problem Reports (ETD)

In the everyday interactions between law enforcement and the citizens of their communities, officers attempt to gain compliance verbally, before resorting to physical force, if necessary. This dissertation examined the use of persuasive verbal messages by law enforcement officers when encountering citizens. These messages were created to represent a progression of asking, telling, and making, to gain compliance from an individual.;The officers in this study were university police officers, because university police departments are charged with providing a safe learning environment on campus. Due to the visible, community oriented policing in which university police departments tend to engage, it is …


Sustainability Index Development For Manufacturing Industry, Hasan Habibul Latf Jan 2015

Sustainability Index Development For Manufacturing Industry, Hasan Habibul Latf

Graduate Theses, Dissertations, and Problem Reports (ETD)

Manufacturing industries are adopting new techniques and philosophies to address the acute shortage of non-renewable energy. Many of these manufacturing industries are focusing on achieving sustainability in every possible stage of their production, from raw material to the recycling of waste. Thus, the significance of using renewable energy, properly handling waste, and progressively conserving the environment is increasing day by day. In this research, the definition of sustainability is quite specific: being productive while making little to no impact on non-replenishable resources. The objective of the research is to determine the sustainability index of manufacturing plants. Since the topic has …


Assessing Feeder Space Access And Commercial Phytase Production Methods On Performance Of Commercial Broilers Fed Pelleted Diets, Mark Edward Lemons Jan 2015

Assessing Feeder Space Access And Commercial Phytase Production Methods On Performance Of Commercial Broilers Fed Pelleted Diets, Mark Edward Lemons

Graduate Theses, Dissertations, and Problem Reports (ETD)

Applied research conducted at universities is essential for further advancements in poultry science and ultimately the commercial poultry industry. One important area of applied nutrition research is examining production methods associated with the important feed additive/enzyme phytase. Exogenous phytase inclusion in poultry diets has consistently been associated with decreased diet cost, increased broiler performance, and reduction in negative environmental impact. However, thermal stability of commercial phytases are variable. Strategies for production of phytases that ultimately maintain activity after being subjected to the pelleting process is essential. Phytase manufacturers have modified production methods in an effort to maximize phytase thermal stability …


Development Of Drilling Control Technology To Reduce Drilling Noise During Roof Bolting Operations, Mingming Li Jan 2015

Development Of Drilling Control Technology To Reduce Drilling Noise During Roof Bolting Operations, Mingming Li

Graduate Theses, Dissertations, and Problem Reports (ETD)

Noise induced hearing loss is a serious health issue among coal mine workers. The roof bolting operation is one of the noisiest underground mining operations. It is second among all equipment in underground coal mines whose operators exceed 100% noise dosage according to MSHA data. In roof bolting, the noise generated in the roof drilling normally contributes a major proportion to the noise exposure to this particular group of miners. This study is to develop a drilling control technology to reduce noise generated during roof bolting drilling.;Previous research shows that the specific energy consumed in drilling bolt holes is inversely …


Electrode Reaction Pathway In Oxide Anode For Solid Oxide Fuel Cells, Wenyuan Li Jan 2015

Electrode Reaction Pathway In Oxide Anode For Solid Oxide Fuel Cells, Wenyuan Li

Graduate Theses, Dissertations, and Problem Reports (ETD)

Oxide anodes for solid oxide fuel cells (SOFC) with the advantage of fuel flexibility, resistance to coarsening, small chemical expansion and etc. have been attracting increasing interest. Good performance has been reported with a few of perovskite structure anodes, such as (LaSr)(CrMn)O3. However, more improvements need to be made before meeting the application requirement. Understanding the oxidation mechanism is crucial for a directed optimization, but it is still on the early stage of investigation. In this study, reaction mechanism of oxide anodes is investigated on doped YCrO 3 with H2 fuel, in terms of the origin of electrochemical activity, rate-determining …


Ethnic Diplomacy: Race, The United States, And Mexico During World War Ii, Jordan Lieser Jan 2015

Ethnic Diplomacy: Race, The United States, And Mexico During World War Ii, Jordan Lieser

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation begins by framing the overall relationship between the United States and Mexico during World War II and recognizes the significant economic role Mexico played in the U.S. wartime industrialization. With this framework in place, the emphasis of this research then turns to how Mexico pressured the United States government into addressing the racial prejudice which existed within the United States against what was perceived as a unified Latin American ethnic group. Thanks to the increased importance of Mexico, multiple parts of the United States government including the State Department, the Office of the Coordinator of Inter-American Affairs, the …


Two-Faced: Bringing Two Roles To Life In Kurt Weill's "Street Scene", Vincent Pelligrino Jan 2015

Two-Faced: Bringing Two Roles To Life In Kurt Weill's "Street Scene", Vincent Pelligrino

Graduate Theses, Dissertations, and Problem Reports (ETD)

This thesis is the culmination of my process, rehearsal and performance of two roles in Kurt Weill's American opera Street Scene. This document serves to describe my process from casting to closing night. It is also a reflection of my work, and reveals information about my education in creating character, and the role of leadership in a large production. This is my process and romantic encounter with Kurt Weill's Street Scene.


Prediction Of Discretization Error Using The Error Transport Equation, Don Roscoe Parsons Iii Jan 2015

Prediction Of Discretization Error Using The Error Transport Equation, Don Roscoe Parsons Iii

Graduate Theses, Dissertations, and Problem Reports (ETD)

Since its conception, computational fluid dynamics (CFD) has had a role to play in both the industrial and the academic realm. Due to the availability of relatively cheap computer resources, CFD is now playing an increasingly critical role in the industry compared to experiments. It is also becoming increasingly important for the CFD analyst to have an in-depth understanding of the error inherently present in numeric and mathematical models. At a minimum, CFD simulation results should be accompanied by some analysis of the error including some type of grid convergence study and an estimation of the corresponding numerical uncertainty.;Error estimation …


Static Code Analysis: On Detection Of Security Vulnerabilities And Classification Of Warning Messages, Andrei M. Perhinschi Jan 2015

Static Code Analysis: On Detection Of Security Vulnerabilities And Classification Of Warning Messages, Andrei M. Perhinschi

Graduate Theses, Dissertations, and Problem Reports (ETD)

This thesis addresses several aspects of using static code analysis tools for detection of security vulnerabilities and faults within source code. First, the performance of three widely used static code analysis tools with respect to detection of security vulnerabilities is evaluated. This is done with the help of a large benchmarking suite designed to test static code analysis tools' performance regarding security vulnerabilities. The performance of the three tools is also evaluated using three open source software projects with known security vulnerabilities. The main results of the first part of this thesis showed that the three evaluated tools do not …


The Role Of Arginase I In Ischemic Stroke And Cardiovascular Disease, Ashley Brooke Petrone Jan 2015

The Role Of Arginase I In Ischemic Stroke And Cardiovascular Disease, Ashley Brooke Petrone

Graduate Theses, Dissertations, and Problem Reports (ETD)

Acute ischemic stroke (AIS) is currently the fifth leading cause of death and a leading cause of long-term disability in the United States. Further, the incidence of AIS is expected to increase dramatically through year 2030. Despite the current and anticipated burden of AIS, treatment options for AIS, both acute and chronic, are extremely limited. Tissue plasminogen activator (tPA) is currently the only FDA-approved drug used to treat AIS; however, only a small fraction of AIS patients are eligible to receive tPA, and of these, only roughly 15 percent benefit from treatment with tPA. Given this, there is a crucial …


Is A Follow Up Endoscopic Retrograde Cholangiography Procedure Necessary For Removal Of Biliary Stent?, Shashank Ponugoti Jan 2015

Is A Follow Up Endoscopic Retrograde Cholangiography Procedure Necessary For Removal Of Biliary Stent?, Shashank Ponugoti

Graduate Theses, Dissertations, and Problem Reports (ETD)

Follow up endoscopic retrograde cholangiopancreatography (ERCP) procedure is routinely performed to remove biliary stents. Simply removing the stents is feasible with upper endoscopy (EGD), which costs less, is technically less challenging, is likely to be more comfortable for the patient, and is safer from a sedation perspective. But therapeutic interventions requiring ERCP may preclude this option. The aim of this study was to analyze the utility of follow up ERCP for biliary stent removal and to determine if follow up ERCP procedure is necessary in all patients. The study population comprised 284 adults who had undergone ERCP for stent placement …


Digital Eye Modification A Countermeasure To Automated Face Recognition, Domenick Poster Iii Jan 2015

Digital Eye Modification A Countermeasure To Automated Face Recognition, Domenick Poster Iii

Graduate Theses, Dissertations, and Problem Reports (ETD)

This thesis describes and assesses a series of subtle digital eye modification techniques and their impact on automated face detection and recognition. The techniques involve altering the relative positioning of a person's eyes in a photograph using a variety of horizontal and vertical movements local to the eye regions. Testing with Eigenfaces, Fisherfaces, and Circular Local Binary Pattern face recognition algorithms on a database of 40 subjects and over 4000 modified images shows these subtle geometric changes to the eyes can degrade automated face recognition accuracy by 40% or more. Certain modifications even lower the chance a face is detected …


An Examination Of Households' Willingness-To-Pay For Wetlands Biodiversity Conservation In The United States: A Benefit Transfer Approach, Rajendra Prasad Poudel Jan 2015

An Examination Of Households' Willingness-To-Pay For Wetlands Biodiversity Conservation In The United States: A Benefit Transfer Approach, Rajendra Prasad Poudel

Graduate Theses, Dissertations, and Problem Reports (ETD)

This research paper provides a benefit transfer model of willingness-to-pay (WTP) for wetlands' biodiversity conservation in the United States. The validity of the estimated wetland's willingness-to-pay values is also examined. While valuation of the services provided by wetlands may be challenging due to their non-market nature, estimation of values is important. Conducting a primary study is the best option for precise results. However, researchers may recommend the benefit transfer approach in wetland valuation when there are limited time, budgetary constraints, and administrative urgency.;The benefit transfer approach involves transferring of value estimates from study sites (where research was already undertaken) to …


The Effects Of Parameter Tuning On Machine Learning Performance In A Software Defect Prediction Context, Benjamin N. Province Jan 2015

The Effects Of Parameter Tuning On Machine Learning Performance In A Software Defect Prediction Context, Benjamin N. Province

Graduate Theses, Dissertations, and Problem Reports (ETD)

Most machine learning techniques rely on a set of user-defined parameters. Changes in the values of these parameters can greatly affect the prediction performance of the learner. These parameters are typically either set to default values or tuned for best performance on a particular type of data. In this thesis, the parameter-space of four machine learners is explored in order to determine the efficacy of parameter tuning within the context of software defect prediction.;A distinction is made between the typical within-version learning scheme and forward learning, in which learners are trained on defect data from one software version and used …