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The Science Of Team Science: Exploring Principal Investigator Leadership Style And Team Collaboration Satisfaction, Stephenie K. Kennedy Dec 2013

The Science Of Team Science: Exploring Principal Investigator Leadership Style And Team Collaboration Satisfaction, Stephenie K. Kennedy

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study examined the relationship between the leadership style of principal investigators (PIs) of interdisciplinary research teams at academic health science centers and the collaboration satisfaction of their team members. Two stage sampling was used. One hundred NIH-funded principal investigators at eight regional health science centers completed a team identification form, identifying their teams as interdisciplinary and providing the names and emails of team members. An online survey instrument that included a basic demographic questionnaire, the Bolman and Deal Leadership (Others) Survey, and the Collaboration and Transdisciplinary Integration Survey was then sent to team members. The sample used for analysis …

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Modeling And Recognizing Binary Human Interactions, Ke Feng Dec 2013

Modeling And Recognizing Binary Human Interactions, Ke Feng

Graduate Theses, Dissertations, and Problem Reports (ETD)

Recognizing human activities from video is an important step forward towards the long-term goal of performing scene understanding fully automatically. Applications in this domain include, but are not limited to, the automated analysis of video surveillance footage for public and private monitoring, remote patient and elderly home monitoring, video archiving, search and retrieval, human-computer interaction, and robotics. While recent years have seen a concentration of works focusing on modeling and recognizing either group activities, or actions performed by people in isolation, modeling and recognizing binary human-human interactions is a fundamental building block that only recently has started to catalyze the …

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A Correlational Study To Evaluate The Effectiveness Of Behavior-Based Safety In An Offshore Oil Production Facility, Zinga Martine Branco Dec 2013

A Correlational Study To Evaluate The Effectiveness Of Behavior-Based Safety In An Offshore Oil Production Facility, Zinga Martine Branco

Graduate Theses, Dissertations, and Problem Reports (ETD)

For many countries, oil production constitutes a large part of their economic resources. It is also one of the most hazardous activities with high incident rates. Workplace safety has remained a challenge for these industries which strive to operate injury free. Behavior-Based Safety (BBS) is used as a safety intervention approach to minimize the frequency and severity of workplace incidents and injuries. Many companies assume BBS is effective in reducing injuries and losses. However, only anecdotal evidence is usually presented to support the effectiveness of BBS in decreasing incident rates.;This study explores the relationship between Behavior-Based Safety (BBS) outcomes and …

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Complete Hamstring Rehabilitation Program For Division I Football Athletes, Caitlin Mcfadden Aug 2013

Complete Hamstring Rehabilitation Program For Division I Football Athletes, Caitlin Mcfadden

Graduate Theses, Dissertations, and Problem Reports (ETD)

Context: Hamstring strains, primarily grade one and two strains, are represented in the literature. However, there is contradicting evidence-based research for rehabilitation of the hamstring as well as limited evidence-based research for preventing de-conditioning of the entire body during the rehabilitation process. Objective: This study combined evidence-based practice and the best clinical experienced to: 1) design a complete program to rehabilitate the hamstring complex and prevent de-conditioning of the entire body with involvement of hamstring researchers, strength and conditioning and athletic training professions; and 2) determine the inclusion of concepts and components of a Five Phase Recovery Process incorporated in …

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Droplet Impact Sub-Cavity Histories And Pdpa Spray Experiments For Spray Cooling Modeling, Nicholas Lee Hillen Aug 2013

Droplet Impact Sub-Cavity Histories And Pdpa Spray Experiments For Spray Cooling Modeling, Nicholas Lee Hillen

Graduate Theses, Dissertations, and Problem Reports (ETD)

Spray cooling is a topic of current interest for its ability to uniformly remove high levels of waste heat from densely packed microelectronics. It has demonstrated the ability to achieve very high heat fluxes, up to 500 W/cm2 with water as the coolant, making it an attractive active thermal management tool.;Full Computational Fluid Dynamic (CFD) simulations of spray cooling are infeasible due to the complexity of the spray (drops fluxes of 106 drops/cm2-sec) and heater surface physics requiring impractical resources. Thus a Monte-Carlo (MC) spray cooling simulation model based on empirical data is under development to serve as a cost …

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An Exploratory Investigation Of Baseball Coaches' Attitudes And Experiences With Sport Psychology, Jesse D. Michel Aug 2013

An Exploratory Investigation Of Baseball Coaches' Attitudes And Experiences With Sport Psychology, Jesse D. Michel

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study examined baseball coaches' attitudes and experiences with sport psychology. The researcher used a descriptive and multivariate approach to explore baseball coaches' relationship with sport psychology professionals and sport psychology services. A modified version of the Sport Psychology Attitudes Revised Coaches -- 2 (SPARC-2) (Zakrajsek, 2011) was administered to survey coaches' stigma tolerance towards sport psychology, confidence in sport psychology consultation, openness to hiring a sport psychology professional, and cultural preference towards sport psychology practitioners. Additional survey items were included to address coaches' experiences with sport psychology. All 2013 members of the American Baseball Coaches Association and all 2012-2013 …

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Probes Of Pulsar Emission Physics: The Double Pulsar And The Gamma-Ray Pulsar Population, Benetge Bhakthi Pranama Perera Aug 2013

Probes Of Pulsar Emission Physics: The Double Pulsar And The Gamma-Ray Pulsar Population, Benetge Bhakthi Pranama Perera

Graduate Theses, Dissertations, and Problem Reports (ETD)

The double pulsar, PSR J0737-3039A/B, is a unique binary system in which both neutron stars have been detected as radio pulsars. We analyze the evolution of the radio emission from the second born, 2.8 s pulsar (pulsar B) based on five years of Green Bank Telescope data since 2003 December. We find that the pulse profile and the flux density of pulsar B change significantly over time, culminating in its radio emission disappearance towards our line of sight since 2008 March. Over this time, the flux density decreases dramatically and the pulse profile evolves from a single to a double …

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Production History Matching And Forecasting Of Shale Assets Using Pattern Recognition, Soodabeh Esmaili Aug 2013

Production History Matching And Forecasting Of Shale Assets Using Pattern Recognition, Soodabeh Esmaili

Graduate Theses, Dissertations, and Problem Reports (ETD)

Generating long-term development plans and reservoir management of shale assets has continued apace. In this study, a novel method that integrates traditional reservoir engineering with pattern recognition capabilities of artificial intelligence and data mining is applied in order to accurately and efficiently model fluid flow in shale reservoirs. The methodology is efficient due to its relatively short development time and is accurate as a result of high quality history matches it achieves for individual wells in a multiwell asset. The technique that is named Artificial Intelligence (AI) Based Reservoir Modeling is a formalized and comprehensive, full-field empirical reservoir model. It …

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Searches For Radio Pulsars & Fast Transients And Multiwavelength Studies Of Single-Pulse Emission, Mitchell B. Mickaliger Aug 2013

Searches For Radio Pulsars & Fast Transients And Multiwavelength Studies Of Single-Pulse Emission, Mitchell B. Mickaliger

Graduate Theses, Dissertations, and Problem Reports (ETD)

Pulsars are excellent tools for studying a wide array of astrophysical phenomena (e.g. gravitational waves, the interstellar medium, general relativity), yet they are still not fully understood. What are their emission processes and how do they change at different energies? How is giant pulse emission different from regular emission? How are different classes of pulsars (RRATs, magnetars, nulling pulsars, etc.) related? Answering these questions will not only help us to understand pulsars in general, but will also help improve techniques for pulsar searches and timing, gravitational wave searches, and single-pulse searches. The work we present here aims to answer these …

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Sensitivity And Stability Analysis Of Nonlinear Kalman Filters With Application To Aircraft Attitude Estimation, Matthew Brandon Rhudy Aug 2013

Sensitivity And Stability Analysis Of Nonlinear Kalman Filters With Application To Aircraft Attitude Estimation, Matthew Brandon Rhudy

Graduate Theses, Dissertations, and Problem Reports (ETD)

No abstract provided.

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Perceived Burdensomeness, Thwarted Belongingness And Acquired Capability For Suicide: Suicidal Risk Factors In An Incarcerated Population, Sarra Nazem Aug 2013

Perceived Burdensomeness, Thwarted Belongingness And Acquired Capability For Suicide: Suicidal Risk Factors In An Incarcerated Population, Sarra Nazem

Graduate Theses, Dissertations, and Problem Reports (ETD)

Suicide is one of the leading causes of death in incarcerated individuals. Previous research suggests that prior suicidal behaviors, history of substance abuse/dependence, and depressive symptoms are common risk factors associated with death by suicide in incarcerated populations. Additionally, offenders who have committed violent crimes, are incarcerated in higher security institutions, and have longer sentences are also at increased risk for suicide. Although research has identified risk factors for suicidal behaviors, there has been very little theory-driven research on suicidal behaviors in incarcerated populations. Joiner's interpersonal theory of suicide (Joiner, 2005; Van Orden et al., 2010) may be an especially …

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Three Essays On Institutions, Religion, And Economic Development, Hossein Radmard Aug 2013

Three Essays On Institutions, Religion, And Economic Development, Hossein Radmard

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation consists of three essays that provide empirical evidence on the importance of institutions, informal institutions and particularly religion in economic development. In the first chapter, the relationship between religious adherence rate in the U.S. counties and entrepreneurship is examined. After controlling for spatial dependencies, results indicate that more religious counties, meaning counties with higher rate of religious membership, have lower entrepreneurial potentials. Chapter 2 investigates the relevance of institutional quality in efficiency of public spending. This study is delivered in the state level. By using a nonparametric method, efficiency of public spending is calculated and then its relationship …

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Rush To Failure: The Governorship Of Sir Percy Girouard, K.C.M.G., D.S.O., R.E.: 1909--1912, Abdullahi Daiyabu Sara Aug 2013

Rush To Failure: The Governorship Of Sir Percy Girouard, K.C.M.G., D.S.O., R.E.: 1909--1912, Abdullahi Daiyabu Sara

Graduate Theses, Dissertations, and Problem Reports (ETD)

In the British Colonial Service, to be a successful administrator, certain expectations must be met. These involved clarity of dispatches, keeping the CO fully informed of development in the dependency and cultivating a healthy working relationship between the governor and his subordinate staff and between the governor and the CO. The absence of the latter was a failing on a -would be successful administrator. At the time of Sir Percy's outstanding performance in the Sudan, Transvaal and Northern Nigeria, he was acclaimed as Canada's outstanding proconsul in the British colonial administration. His performance in the latter places informed the CO's …

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Development Of Carbonaceous Chemistry For Computational Modeling (C3m) With Application Of Uncertainty Quantification (Uq) Analysis For Coal Gasification Kinetics In Computational Fluid Dynamics (Cfd) Modeling, Kiran P Chaudhari Aug 2013

Development Of Carbonaceous Chemistry For Computational Modeling (C3m) With Application Of Uncertainty Quantification (Uq) Analysis For Coal Gasification Kinetics In Computational Fluid Dynamics (Cfd) Modeling, Kiran P Chaudhari

Graduate Theses, Dissertations, and Problem Reports (ETD)

In association with Department of Energy.s National Energy Technology Laboratory (NETL), a software platform entitled Carbonaceous Chemistry for Computational Modeling (C3M) that can access a variety of kinetic processes and reaction mechanisms typically found in coal gasification, gas clean-up, and carbon capture processes, has been developed to overcome the limitations in terms of applicable operating conditions and fuel types. It interfaces with CFD software such as Multiphase Flow with Interphase Exchanges (MFIX) developed at NETL, ANSYS-FLUENT by ANSYS Inc., and BARRACUDA by CPFD Software and provides relevant parameters to simulate chemical kinetics and/or to replicate laboratory data. The reaction kinetics …

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Tracer Gas Exposure Of Human Subjects Doing Simulated Work At A Benchtop Enclosing Hood In A Wind Tunnel, Rolando A. Carreno-Chavez Aug 2013

Tracer Gas Exposure Of Human Subjects Doing Simulated Work At A Benchtop Enclosing Hood In A Wind Tunnel, Rolando A. Carreno-Chavez

Graduate Theses, Dissertations, and Problem Reports (ETD)

Local exhaust ventilation devices (LEV) are critical in protecting workers from harmful airborne contaminants. The aim of this study is to investigate the factors that affect the performance of a benchtop enclosing hood. A Freon 134ahelium mixture was released from a 9" diameter pie-pan placed on the floor of a 30" high by 36" wide hood at 2" from the hood face. Freon 134a was measured close to the nose and mouth for a simple manikin (unheated and not breathing), a complex manikin (heated and breathing), and ten human subjects at different times while they stood at the face of …

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The Involvement Of Sigma Receptor Modulation In The Antidepressant Effects Of Ketamine And The Neurotoxic Actions Of Methamphetamine, Matthew J. Robson Aug 2013

The Involvement Of Sigma Receptor Modulation In The Antidepressant Effects Of Ketamine And The Neurotoxic Actions Of Methamphetamine, Matthew J. Robson

Graduate Theses, Dissertations, and Problem Reports (ETD)

Depression is estimated to affect at least 30% of the world's population at some point during their lives. Currently marketed antidepressants require a period of at least 2 to 3 weeks to display any antidepressant effects in clinical populations and rates of clinical resistance to the antidepressant effects of these drugs are high. Ketamine is an N-methyl-D-aspartate (NMDA) antagonist and dissociative anesthetic that has been shown to display rapid acting and prolonged antidepressant activity in smallscale human clinical trials. Ketamine also binds to sigma receptors, which are believed to be protein targets for a potential new class of antidepressant medications. …

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Lessons In Modeling, Preventing, And Treating Neural Injury: Improving Bench-To- Bedside Translation, Ryan Coddington Turner Aug 2013

Lessons In Modeling, Preventing, And Treating Neural Injury: Improving Bench-To- Bedside Translation, Ryan Coddington Turner

Graduate Theses, Dissertations, and Problem Reports (ETD)

The translation of therapeutic agents for ischemic stroke and traumatic brain injury from the preclinical laboratory to clinical trials has been fraught with failure as evident by the 1,000+ preclinical studies that have failed to translate to a proven therapeutic clinically. Numerous potential reasons for these shortcomings have been identified and include the use of animal models that fail to capture clinically relevant risk factors or injury parameters, targeting of pathological events occurring rapidly after injury but before the likely time of patient presentation for treatment, emphasis on acute rather than chronic outcome measures, and mismatch in outcome measures used …

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An Investigation Of Traveling-Wave Electrophoresis Using A Trigonometric Potential, James Vopal Aug 2013

An Investigation Of Traveling-Wave Electrophoresis Using A Trigonometric Potential, James Vopal

Graduate Theses, Dissertations, and Problem Reports (ETD)

Traveling-wave electrophoresis, a technique for microfluidic separations in lab-on-achip devices, is investigated using a trigonometric model that naturally incorporates the spatial periodicity of the device. Traveling-wave electrophoresis can be used to separate high-mobility ions from low-mobility ions in forensic and medical applications, with a separation threshold that can be tuned for specific applications by simply choosing the traveling wave frequency. Our simulations predict plateaus in the average ion velocity verses the mobility, plateaus that correspond to Farey fractions and yield Devil's staircases for non-zero discreteness values. The plateaus indicate that ions with different mobilities can travel with the same average …

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Is Postural Stability Compromised In Women With Urinary Incontinence?, Samantha K. Rondini Aug 2013

Is Postural Stability Compromised In Women With Urinary Incontinence?, Samantha K. Rondini

Graduate Theses, Dissertations, and Problem Reports (ETD)

Women with urinary incontinence (UI) have an increased risk of falling compared to their age-matched peers without UI. Due to the anatomical location of the pelvic floor muscles, they are suspected to contribute to the maintenance of postural stability during everyday activities. Women with UI have weak or dysfunctional pelvic floor muscles. The purpose of this study was to determine if women with UI, specifically stress, urge, and mixed UI, have deficits in postural stability during static tasks and in response to postural perturbations of the support surface.;Methods: To measure static stability, 14 women (7 with UI: age 51.75 +/- …

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Discrete Time Dynamic Traffic Assignment Models With Lane Reversals For Evacuation Planning, Yeh-Ern Poh Aug 2013

Discrete Time Dynamic Traffic Assignment Models With Lane Reversals For Evacuation Planning, Yeh-Ern Poh

Graduate Theses, Dissertations, and Problem Reports (ETD)

In an event of a natural or man-made disaster, an evacuation is likely to be called for to move residents away from potentially hazardous areas. Road congestion and traffic stalling is a common occurrence as residents evacuate towns and cities for safe refuges. Lane reversal, or contra-flow, is a remedy to increase outbound flow capacities from disaster areas which in turn will reduce evacuation time of evacuees during emergency situations. This thesis presents a discrete-time traffic assignment system with lane reversals which incorporates multiple sources and multiple destinations to predict optimal traffic flow at various times throughout the entire planning …

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Experimental Investigation Of The Vibrational And Thermal Response Of A Laser Spark Plug, Gregory S. Yoder Aug 2013

Experimental Investigation Of The Vibrational And Thermal Response Of A Laser Spark Plug, Gregory S. Yoder

Graduate Theses, Dissertations, and Problem Reports (ETD)

A study was conducted in order to evaluate the external thermal and vibrational effects on the operation of a laser ignition system for internal combustion (IC) engine applications. West Virginia University (WVU) in conjunction with the National Energy Technology Laboratory (NETL) have constructed a prototype laser spark plug which has been designed to mount directly onto the head of a natural gas engine for the purpose of igniting an air/fuel (A/F) mixture in the engine's combustion chamber. To be considered as a viable replacement for the conventional electrode-based ignition system, integrity, durability and reliability must be justified. Thermal and oscillatory …

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Effect Of Delmopinol Hydrochloride On Endodontic Biofilm, Gabriel M. Holley Aug 2013

Effect Of Delmopinol Hydrochloride On Endodontic Biofilm, Gabriel M. Holley

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background: The ideal goal of endodontic therapy is to decrease the microbial load within the root canal system followed by the placement of a hermetic seal of the apical portion of the root. Sodium hypochlorite (NaOCl) has long been considered the gold standard for disinfecting root canals, but, the presence of a persistent intraradicular biofilm in properly cleaned and shaped canals has led to the need of development for adjunct irrigant targeting these complex structures. Objectives: The purpose of this study was to compare the effects on the biofilm of NaOCl and delmopinol hydrochloride (DH), a new FDA approved oral …

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A Study Of Exploiting Objectness For Robust Online Object Tracking, Raghu Kiran Yalamanchili Aug 2013

A Study Of Exploiting Objectness For Robust Online Object Tracking, Raghu Kiran Yalamanchili

Graduate Theses, Dissertations, and Problem Reports (ETD)

Tracking is a fundamental problem in many computer vision applications. Despite the progress over the last decade, there still exist many challenges especially when the problem is posed in real world scenarios (e.g., cluttered background, occluded objects). Among them drifting has been widely observed to be a problem common to the class of online tracking algorithms - i.e., when challenges such as occlusion or nonlinear deformation of the object occurs, the tracker might lose the target completely in subsequent frames in an image sequence. In this work, we propose to exploit the objectness to partially alleviate the drifting problem with …

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Emulation Of Equal Open Access And Competition Creation In The Wireline Telecommunications Local And Last Mile Market Segments, Daniel L. Van Epps Aug 2013

Emulation Of Equal Open Access And Competition Creation In The Wireline Telecommunications Local And Last Mile Market Segments, Daniel L. Van Epps

Graduate Theses, Dissertations, and Problem Reports (ETD)

Expanded telecommunications was deemed a serious need for end users. The "Local Market" and "Last Mile" market segments have largely consolidated into "natural utilities". Competition and access problems occur if new providers enter the local market and desire competitive access and service to end users. Local and last mile telecommunications market structures are believed to be significantly responsible for inhibiting achievement of a more perfect marketplace. The purpose of this study was to examine potential solutions from laboratory network emulation results addressing the research question "Can equal open access and competition for all users be created in the telecommunications local …

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Implementation And Evaluation Of A Practice Change Incorporating A Weight Loss Strategy For Adolescent Patients With A Bmi Percentile In The Overweight And/Or Obese Category, Anita C. Fouch Aug 2013

Implementation And Evaluation Of A Practice Change Incorporating A Weight Loss Strategy For Adolescent Patients With A Bmi Percentile In The Overweight And/Or Obese Category, Anita C. Fouch

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background: Adolescent obesity has become an epidemic nationwide and globally. In Ohio, rates of obesity among African American, Hispanic and other minority students continues to rise. Adolescent obesity increases the risk of developing co-morbid health issues, such as Type II Diabetes Mellitus (T2DM), hypertension (HTN) and fatty liver disease.;Objective: To implement and evaluate a practice change incorporating a weight loss strategy in a large pediatric gastroenterology clinic for adolescent patients with a body mass index percentile (BMI) in the overweight and/or obese category.;Method: The capstone project practice change involved the use of a nosugaradded beverages weight loss strategy used by …

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Essays On Resource Allocation And Energy Commodity Markets, Oleg Kucher Aug 2013

Essays On Resource Allocation And Energy Commodity Markets, Oleg Kucher

Graduate Theses, Dissertations, and Problem Reports (ETD)

The dissertation consists of three essays directed towards energy resource allocation on micro-, regional- and macro- levels: 1. Economic Analysis of Coal and Biomass to Liquids Investment Decisions, 2. Spatial Dependence in Wholesale Gasoline Markets across the United States, and 3. Energy Prices, Inventory and the Business Cycle. The first dissertation essay entitled "Economic Analysis of Coal and Biomass to Liquids (CBTL) Investment Decisions" examines the economic feasibility of converting coal and biomass into liquid fuels in the U.S. The study investigates the investment decisions into the CBTL technology under fuel price uncertainty. The CBTL technology scenario draws upon the …

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Houses Of History And Homepages: Museums Of Communism In Eastern And Central Europe And Their Online Presence, Alexandra Day Coffman Aug 2013

Houses Of History And Homepages: Museums Of Communism In Eastern And Central Europe And Their Online Presence, Alexandra Day Coffman

Graduate Theses, Dissertations, and Problem Reports (ETD)

Museums of communism have been appearing all over Central and Eastern Europe, as has the interest in them. Memorabilia sells well and tourists are interested in what life was like behind the Iron Curtain. If these museums show how they present, represent, and deal with the recent past, museum websites also give insight into the museums' greater outreach. Communism is portrayed in several ways in different countries, but they generally depict the country as a victim of Soviet rule and influence. This study examines resources that are available for the global audience and observes how engaged the museums are in …

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When The Sacred Hurts: Using Grounded Theory Analysis To Understand How Former Members Experienced Abuse Of Religious Authority In Christian Groups, Karianne D. P. Bilsky Aug 2013

When The Sacred Hurts: Using Grounded Theory Analysis To Understand How Former Members Experienced Abuse Of Religious Authority In Christian Groups, Karianne D. P. Bilsky

Graduate Theses, Dissertations, and Problem Reports (ETD)

The topic of spirituality has recently enjoyed increased popularity within the field of psychology (Pargament, 2007). However, there is an aspect of spirituality that the scientific literature has only started to address -- trauma that occurs through religious manipulation. The current study utilizes a qualitative research design to develop an empirical definition and preliminary model of abuse of religious authority (ARA). Seventeen former members of Christian groups were interviewed by employing a semi-structured interview, and the results were analyzed using grounded theory analysis. All participants reported that the negative aspects of their experience outweighed the positive aspects. Participants provided a …

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Poverty On The Periphery: U.S. Implementation Of Modernization Theory In The Alliance For Progress And The War On Poverty, Michelle C. Mayhew Aug 2013

Poverty On The Periphery: U.S. Implementation Of Modernization Theory In The Alliance For Progress And The War On Poverty, Michelle C. Mayhew

Graduate Theses, Dissertations, and Problem Reports (ETD)

The principle objective of this paper is to compare how modernization theory was implemented during the Alliance for Progress and the War on Poverty and to explore how this impacted power structures at the national level in the Alliance and the local level in the War on Poverty There have been some earlier works which have addressed modernization theory during the Alliance for Progress, including Michael Latham's, Modernization as Ideology, however most information about modernization theory itself comes from W.W. Rostow's work, The Stages of Economic Growth, and Rostow and Millikan's, A Proposal. During the War on Poverty, President Johnson …

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Solving For Y: Digital Soil Mapping Using Statistical Models And Improved Models Of Land Surface Geometry, Stephen M. Roecker May 2013

Solving For Y: Digital Soil Mapping Using Statistical Models And Improved Models Of Land Surface Geometry, Stephen M. Roecker

Graduate Theses, Dissertations, and Problem Reports (ETD)

Digital soil mapping (DSM) is a rapidly growing area of soil research that has great potential for enhancing soil survey activities and advancing knowledge of soil-landscape relationships. To date many successful studies have shown that geographic datasets can be used to model soil spatial variation. This thesis addresses two issues relevant to DSM, scale effects on digital elevation models, and predicting soil properties. The first issue examined was the effect of spatial extent on the calculation of geometric land surface parameters (LSP) (e.g. slope gradient). This is a significant issue as they represent some of the most common predictors used …

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