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Graduate Theses, Dissertations, and Problem Reports (ETD)

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A Joint Location Inventory Model Under The Risk Of Supply Disruptions With Facility Fortifications, Ehsan Jafari Shirazi Jan 2015

A Joint Location Inventory Model Under The Risk Of Supply Disruptions With Facility Fortifications, Ehsan Jafari Shirazi

Graduate Theses, Dissertations, and Problem Reports (ETD)

Inefficient facility location decisions result in extra cost throughout the lifetime of the facilities. Hence, facility location decisions are considered as critical and difficult decisions in today's highly competitive business environment. There are two relatively new areas of research in facility location modeling approaches that have recently received much attention. The first is the incorporation of short-term inventory decisions into long-term location decisions. It has been shown in the literature (e.g. Daskin et al. 2002 or Shen et al. 2003) that failing to account for inventory may result in fundamental changes in the location decisions and thus suboptimality. The second …

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Functional Analysis And Transcriptional Regulation Of Oocyte-Specific Nuclear Transporter Kpna7, Lei Wang Jan 2015

Functional Analysis And Transcriptional Regulation Of Oocyte-Specific Nuclear Transporter Kpna7, Lei Wang

Graduate Theses, Dissertations, and Problem Reports (ETD)

The finely orchestrated development and maturation of the oocytes has been the focus of many studies in which oocyte-specific genes essential for folliculogenesis and early embryonic development have been identified. Studies using knockout mice models of Nobox, Sohlh1, Sohlh2, Figla and Lhx8 have revealed that these oocyte specific transcriptional factors form networks in which they regulate the expression of each other and downstream targets. However, little is known about the mechanisms that control the nuclear transport of these essential factors in oocytes and early embryos. The nuclear envelope separates the nuclear and cytoplasmic compartment in the cell and uncouples transcription …

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Characterization Of Defects On Mocvd Grown Gallium Nitride Using Transient Analysis Techniques, Sujan Phani Kumar Kasani Jan 2015

Characterization Of Defects On Mocvd Grown Gallium Nitride Using Transient Analysis Techniques, Sujan Phani Kumar Kasani

Graduate Theses, Dissertations, and Problem Reports (ETD)

Since the invention of the first visible spectrum (red) LED by Holonyak in 1962, there has been a need for more efficient, more reliable and less expensive LEDs. The III-nitrides revolutionized semiconductor technology with their applications in the blue LED's. However the internal quantum efficiency of LED's are limited by the deep level traps in GaN substrate. Traps are defects in the crystal lattice, which depends on growth parameters. These traps act as non-radiative centers where non-radiative recombination occurs without conversion of available energy into light. Characterization of these traps in a material is necessary for better understanding of the …

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Heavy Metal Uptake By Four Plant Species: Radish, Indian Mustard, Corn, And Soybean., Oluwasogo Bolaji Alonge Jan 2015

Heavy Metal Uptake By Four Plant Species: Radish, Indian Mustard, Corn, And Soybean., Oluwasogo Bolaji Alonge

Graduate Theses, Dissertations, and Problem Reports (ETD)

Metal contaminated soils are a problem throughout the world. Because metals accumulate in the food chain they have been linked to adverse human and ecosystem health. One promising approach to remediating metal contaminated soils is phytoremediation but success has been limited by an incomplete understanding of the factors that control metal uptake by plants, including the effects when more than one contaminant metal is present in the system. Metal contaminated soil for this study was collected from near Spelter in Harrison County WV, the site of a former zinc smelting site that has contaminated residential soils and stream sediments with …

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Digital Divide Among Pakistani Faculty Regarding Their Information And Communication Technology (Ict) Access, Kamal Ahmed Soomro Jan 2015

Digital Divide Among Pakistani Faculty Regarding Their Information And Communication Technology (Ict) Access, Kamal Ahmed Soomro

Graduate Theses, Dissertations, and Problem Reports (ETD)

The issue of digital divide is a complex and multidimensional phenomenon. It centers on various dimensions of information and communication technology (ICT) access including physical access, motivation, skills, and actual usage of digital technologies. The examination of digital divide is helpful in taking necessary measures to remove or at least minimize the problem of digital divide. The past research does not provide adequate literature on digital divide among higher education faculty especially in the context of developing countries.;I developed and validated a quantitative survey instrument to examine digital divide among higher education faculty in terms of their access to information …

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Understanding The Educational Experiences Of Science Teachers In A Five-Year Teacher Education Program: A Phenomenological Study, Nitin Srivastava Jan 2015

Understanding The Educational Experiences Of Science Teachers In A Five-Year Teacher Education Program: A Phenomenological Study, Nitin Srivastava

Graduate Theses, Dissertations, and Problem Reports (ETD)

This qualitative study provides an overview of educational experiences of six in-service and three pre-service secondary science teachers in the Benedum Collaborative Five-Year Teacher Education Program at a land-grant university. The researcher interviewed secondary science teachers on the experiences they found meaningful in various program components that influenced their teacher identity, beliefs about science pedagogy, and their sense of preparedness for teaching. Document analysis of teachers' journals and lesson plans supplemented the qualitative data in addition to the researcher's role and knowledge as an outsider (non-Benedum graduate) and insider (facilitator and instructor in the technology integration based classes for one …

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Soluble Oligomeric Abeta42 Affects Microglia Activation And Mitochondrial Respiration, Cong Tan Jan 2015

Soluble Oligomeric Abeta42 Affects Microglia Activation And Mitochondrial Respiration, Cong Tan

Graduate Theses, Dissertations, and Problem Reports (ETD)

Microglia activation is associated with many neurodegenerative diseases such as Alzheimer's disease (AD). When activated, microglia cells change their morphology and become phagocytic. In the Alzheimer's brain, microglia cells play an important role in scavenging plaque-damaged cells and in clearing Abeta plagues. Soluble oligomeric Abeta (oAbeta) is capable to stimulate microglia activation. In AD brain, microglia cells accumulate around senile plaques as a hallmark of the pathology. Recently, we found that mitochondrial oxidative phosphorylation is affected in a dose-dependent manner in a microglia cell line (C8-B4) and primary rat glia cell. Mitochondrial basal, maximal and spare respiration capacities increase at …

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Type 1 Diabetic Heart: Examination Of Mitochondrial Structure And Micrornas, Dharendra Thapa Jan 2015

Type 1 Diabetic Heart: Examination Of Mitochondrial Structure And Micrornas, Dharendra Thapa

Graduate Theses, Dissertations, and Problem Reports (ETD)

Cardiac complications such as diabetic cardiomyopathy are the leading cause of morbidity and mortality in patients with diabetes mellitus. Dysfunctional mitochondria, an effect associated with cardiomyopathy, are central in the pathogenesis of type 1 diabetes mellitus. Cardiac mitochondria are comprised of two spatially located mitochondria including mitochondria located beneath the sarcolemma, termed subsarcolemmal mitochondria (SSM) and those located in between myofibrils, termed interfibrillar mitochondria (IFM). Mitochondrial subpopulations have been shown to respond differently to pathological and physiological stimuli as reported in a review published by our laboratory. IFM mitochondria are most impacted in a type 1 diabetic setting. Proteomic alterations …

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Effects Of Size And Size Distribution On The Magnetic Properties Of Maghemite Nanoparticles And Iron-Platinum Core-Shell Nanoparticles, Kelly Pisane Jan 2015

Effects Of Size And Size Distribution On The Magnetic Properties Of Maghemite Nanoparticles And Iron-Platinum Core-Shell Nanoparticles, Kelly Pisane

Graduate Theses, Dissertations, and Problem Reports (ETD)

Magnetic nanoparticles with large magnetic moments that can be manipulated with an external magnetic field, have potential uses in medicine because their sizes are comparable to biological scales. For such applications it is important to understand how their magnetic properties are affected by their size and size distribution inherently present in magnetic nanoparticles. For this purpose, maghemite (gamma-Fe2O3) nanoparticles with average diameters of 7.0+/-0.8 nm, 6.3+/-0.6 nm, 3.4+/-0.8 nm and 2.5+/-0.7 nm and Fe-Pt core-shell nanoparticles with an approximate core diameter of 2.2 nm were synthesized and investigated. To aid in the interpretation of the magnetic properties, the structural properties …

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Short-Term Resource Allocation And Management, Denis Da Cruz Pinha Jan 2015

Short-Term Resource Allocation And Management, Denis Da Cruz Pinha

Graduate Theses, Dissertations, and Problem Reports (ETD)

Almost all sectors of the economy, such as, government, healthcare, education, ship repair, construction, and manufacturing require project management. A key component of project management deals with scheduling of tasks such that limited resources are utilized in an effective manner. Current research on resource constrained project-scheduling has been classified as: a) Single project with single mode for various tasks, b) Single project with multiple task modes, c) Multiple projects with single task mode, and d) Multiple projects with multiple task modes.;This work extends the current multi-project, multi-mode scheduling techniques. The resources can be renewable, and non-renewable. In addition, it focuses …

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The Relationship Between The Distributed Leadership Readiness Of West Virginia Principals And Their Perceptions Of Selected School-Based Committees, Patrick L. Riddle Ii Jan 2015

The Relationship Between The Distributed Leadership Readiness Of West Virginia Principals And Their Perceptions Of Selected School-Based Committees, Patrick L. Riddle Ii

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this study was to determine the relationship between the distributed leadership readiness of West Virginia principals and their perceptions of selected school-based committees which influence leadership in their schools. Six hundred seventy four West Virginia principals were invited to participate in this study by responding to an online survey that included the Distributed Leadership Readiness Scale (DLRS), demographic items, and items from the researcher developed School-Based Committee Influence Survey. There were 198 West Virginia principal respondents to the survey (29.3%). The results of this study showed that West Virginia principal respondents were ready for distributed leadership and …

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What Shadows We Pursue: Death, Democracy, And Disunion In Antebellum America, Joseph M. Rizzo Jan 2015

What Shadows We Pursue: Death, Democracy, And Disunion In Antebellum America, Joseph M. Rizzo

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation examines the ways Americans registered concerns about antebellum democratic political culture through their mourning of national leaders. A "eulogizing class" consisting of clergymen, politicians, lawyers, and educators was especially prominent in shaping how contemporaries remembered the dead. As a class, the eulogists were conflicted about democracy and partisanship, and conveyed their concerns through the potentially demagogic form of the eulogy---the practice of glorifying the "great man." Through an examination of eulogies, sermons, and newspaper editorials after the deaths of William Henry Harrison, Andrew Jackson, John Quincy Adams, John Calhoun, Henry Clay, and Daniel Webster, this dissertation reveals the …

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Use Of Wireless, Ad-Hoc Networks For Proximity Warning And Collision Avoidance In Surface Mines, Venkata Raghava Siva Naga Shashank Sabniveesu Jan 2015

Use Of Wireless, Ad-Hoc Networks For Proximity Warning And Collision Avoidance In Surface Mines, Venkata Raghava Siva Naga Shashank Sabniveesu

Graduate Theses, Dissertations, and Problem Reports (ETD)

Despite the record of progress achieved in the United States with respect to reducing fatal and non-fatal injuries in surface mines, both the number and severity of these injuries remain unacceptable. A large fraction of these injuries in surface mines are caused by collisions involving large haulage equipment such as trucks, dozers, and front-end loaders. There are two main contributing factors for these collisions: (i) the massive size of these vehicles, which causes several blind spots surrounding the vehicle for the driver, and (ii) the sheer momentum of these vehicles, which makes it hard to maneuver these vehicles and often …

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Robust Shortest Path Problem: Models And Solution Algorithms, Mehrdad Shahabi Jan 2015

Robust Shortest Path Problem: Models And Solution Algorithms, Mehrdad Shahabi

Graduate Theses, Dissertations, and Problem Reports (ETD)

Shortest path is a key component of several network related problems and has been widely used and applied in numerous disciplines such as transportation, logistics and telecommunication networks. This problem in the base deterministic settings lends itself to elegant and efficient solution methods. Nevertheless, the initial formulation is limited in number of ways; one such limitation is the need to accounting for inherent uncertainty in real world transportation networks. In recent years there has been a growing interest in incorporating uncertainty within the transportation network analysis models and particularly the shortest path problem. This dissertation contributes to the growing body …

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The Effect Of Direct Instruction On Spanish Language Acquisition In A Preschool Free-Play Environment: A Single-Case Design, Lucy Rose Scotti Jan 2015

The Effect Of Direct Instruction On Spanish Language Acquisition In A Preschool Free-Play Environment: A Single-Case Design, Lucy Rose Scotti

Graduate Theses, Dissertations, and Problem Reports (ETD)

The predicted increase in Spanish speakers within the United States brings to light a new direction for preschool curricula. There are multiple, on-going arguments about the best time for children to learn a second language and what role critical periods for brain development play in second language acquisition. Although there are individual differences in development, the current study demonstrates that children can learn Spanish vocabulary words with an average of 30 minutes of instruction per week. Using a combination of direct instruction with developmentally appropriate practices, hands-on, and engaging activities, the teaching of Spanish vocabulary, themed and age appropriate for …

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Improved Periodicity Mining In Time Series Databases, Nithin Uppalapati Jan 2015

Improved Periodicity Mining In Time Series Databases, Nithin Uppalapati

Graduate Theses, Dissertations, and Problem Reports (ETD)

Time series data represents information about real world phenomena and periodicity mining explores the interesting periodic behavior that is inherent in the data. Periodicity mining has numerous applications such as in weather forecasting, stock market prediction and analysis, pattern recognition, etc. Recently, the suffix tree, a powerful data structure that efficiently solves many strings related problems has been used to gather information about repeated substrings in the text and then perform periodicity mining. However, periodicity mining deals with large amounts of data which makes it difficult to perform mining in main memory due to the space constraints of the suffix …

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Appalachian Adolescents' Identity And Agency: An Ethnographic Exploration Of How Local Culture And Social Class Matter In The Postsecondary Transition, Brandi Slider Weekley Jan 2015

Appalachian Adolescents' Identity And Agency: An Ethnographic Exploration Of How Local Culture And Social Class Matter In The Postsecondary Transition, Brandi Slider Weekley

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study details a one year critical, ethnographic examination of the postsecondary transitions of six West Virginia high school seniors. The work explores how social class and local culture mattered in the postsecondary transition for students from a range of social and economic backgrounds. Figured Worlds Theory (Holland, et al., 1998) was used to explore how students' identities were constructed from the world around them and enacted as students agentively moved through the postsecondary transition. Attention was paid to the hollowing out of rural spaces and how this happens in West Virginia as a product of deindustrialization and educational policy …

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Impacts Of Forest Management And Habitat Change On Declining Avian Species In West Virginia, Christina Slover Jan 2015

Impacts Of Forest Management And Habitat Change On Declining Avian Species In West Virginia, Christina Slover

Graduate Theses, Dissertations, and Problem Reports (ETD)

Understanding the impacts of forest management and severe storms on avian communities can assist decision making for specific wildlife and timber management goals. This is important because even carefully managed forests will be influenced by a combination of anthropogenic activities and non-anthropogenic forces. I studied the effects of prescribed burning and severe storm events on vegetation structure and avian community diversity and structure in the Monongahela National Forest in central West Virginia. I observed dramatic responses from vegetation structure to prescribed burning but few changes in avian abundances. I measured further impacts, particularly understory vegetation structure, in our forest stands …

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Using Storytelling As A Teaching Strategy To Increase Student Engagement In Stem Classes, Toni Morris Jan 2015

Using Storytelling As A Teaching Strategy To Increase Student Engagement In Stem Classes, Toni Morris

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study investigated whether or not the storytelling strategy could be used to increase student engagement and learning among non-STEM/STEAM majors participating in STEM/STEAM courses required by their programs of study. Specifically, it examined whether or not using storytelling to teach health science content to Early Childhood Development and Elementary Education students contributed to higher levels of student engagement, retention of content knowledge, self-reported preparedness to teach the content as future teachers, and ratings of teacher effectiveness. This study employed a QUAN-qual design. A true experimental design was used for the quantitative portion of the study while semi-structured group interviews …

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Investigations Of Surface Related Electronic Properties In Smb6 And Laalo3srtio3 Heterostructures, Sanjay Adhikari Jan 2015

Investigations Of Surface Related Electronic Properties In Smb6 And Laalo3srtio3 Heterostructures, Sanjay Adhikari

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation reports research performed on two types of two-dimensional systems: SmB6 and LaAlO3/SrTiO3 (LAO/STO). SmB6 has been proposed to be a topological Kondo insulator at low temperature. In order to understand carriers/ lattice dynamics and their interactions, femtosecond pump-probe spectroscopy is performed in SmB6 single crystals and thin lms at variable temperatures. The collective oscillation modes in GHz - THz and the change of carrier relaxations is observed as a function of temperature. From the temperature dependent results for d hybridization, opening of the hybridization gap, \phonon bottleneck", and th possible topological surface state formation is revealed. The topological …

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Analysis Of The Air Voids Within Superpave Gyratory Compacted Hot Mix Asphalt Specimens, Andrew Manuel Aguilar Jan 2015

Analysis Of The Air Voids Within Superpave Gyratory Compacted Hot Mix Asphalt Specimens, Andrew Manuel Aguilar

Graduate Theses, Dissertations, and Problem Reports (ETD)

Analysis of the Air Voids within Superpave Gyratory Compacted Hot Mix Asphalt Specimens Andrew Manuel Aguilar The influence of mix design properties on the mechanical properties of Superpave hot mix asphalt samples has been researched by the state of West Virginia with the Asphalt Mixture Performance Tester (AMPT) since its acquisition in 2013. The dynamic modulus, flow number, and number of cycles to failure through uniaxial fatigue testing are all affected by the mix properties of the sample being tested. It has been a concern if samples prepared with the Superpave gyratory compactor (SGC) for testing with the AMPT have …

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Longitudinal Patterns And Economic Consequences Of Emergency Department Visits Among Medicaid Enrollees, Parul Agarwal Jan 2015

Longitudinal Patterns And Economic Consequences Of Emergency Department Visits Among Medicaid Enrollees, Parul Agarwal

Graduate Theses, Dissertations, and Problem Reports (ETD)

Objective.;The objective of the dissertation was to examine the patient- and county-level factors associated with the Emergency Department (ED) visits and economic consequences associated with persistent ED use among adult fee-for-service (FFS) Medicaid beneficiaries. The first study examined the patient- and county-level factors associated with the number of ED visits and the second study examined the longitudinal patterns of ED visits among FFS Medicaid beneficiaries. Further, in both the studies ED visits due to primary care sensitive conditions were also examined. The third study examined the patient- and county- level factors associated with persistent ED use followed by an estimation …

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Effect Of Nutrition, Lactation And Gonadotropin Stimulation On Ram-Induced Lh Surge And Subsequent Fertility In Early Post-Partum Ewes During Seasonal Anestrous, Abiodun Emmanuel Adebiyi Jan 2015

Effect Of Nutrition, Lactation And Gonadotropin Stimulation On Ram-Induced Lh Surge And Subsequent Fertility In Early Post-Partum Ewes During Seasonal Anestrous, Abiodun Emmanuel Adebiyi

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study evaluated the effect of lactation, exogenous gonadotropin (GS), and nutritional supplementation (SUPP) on fertility of Katahdin ewes during seasonal anestrous. Experiment 1 evaluated effects of lactation and GS on ram-induced LH surge. Lactating (65 to 80 d postpartum; pp) and dry ewes were randomly assigned to be treated with an estrus induction protocol (EIP) consisting of a 5-d treatment with a CIDR device with an injection of a gonadotropin mixture (240 IU eCG and 120 IU hCG; P.G. 600RTM; 3 ml/animal i.m.; n = 16) or no further treatment (n=16) at removal of CIDRs. Experiment 2 was similar …

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Predicting Production Behavior Of The Marcella Shale By Using Arps Equation, Bassam Abdulhameed Alabdulkareem Jan 2015

Predicting Production Behavior Of The Marcella Shale By Using Arps Equation, Bassam Abdulhameed Alabdulkareem

Graduate Theses, Dissertations, and Problem Reports (ETD)

The behavior of the horizontal wells producing from Marcellus shale is not fully understood because of the limited production history. As a result a method of predicting the long term production is needed. A number of production decline curve analysis models have been proposed for application to unconventional gas reservoirs. The problem is that the reliable production prediction method are not available when production history from Marcellus shale horizontal wells is limited. In this study, production and completion data from Marcellus shale wells were collected to build a generic model The generic model was then used in conjunction with a …

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Diel Periodicity And Chronology Of Upstream Migration In Yellowphase American Eels (Anguilla Rostrata), Joni L. Aldinger Jan 2015

Diel Periodicity And Chronology Of Upstream Migration In Yellowphase American Eels (Anguilla Rostrata), Joni L. Aldinger

Graduate Theses, Dissertations, and Problem Reports (ETD)

This thesis examined 24-h diel periodicity of upstream migration of yellow-phase American Eels (Anguilla rostrata), and the chronology of upstream movements within diel periods (day, night, and twilight). Further, relationships were examined for total lengths of upstream migrants and diel movements (vespertine, nocturnal, matutinal, and diurnal), as well as for total lengths and season of year. The thesis is comprised of two chapters: (1) an introduction and literature review on American Eel life history, migration and movement, and population concerns, and (2) a research study of diel periodicity and movement chronology of upstream migrant yellow-phase American Eels at an eel …

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Lumbar Posture And Tissue Loading During Short-Term Static Trunk Bending, Faisal Alessa Jan 2015

Lumbar Posture And Tissue Loading During Short-Term Static Trunk Bending, Faisal Alessa

Graduate Theses, Dissertations, and Problem Reports (ETD)

Low back pain (LBP) is among the most prevalent occupational health problems worldwide and is a leading cause of lost work days. Previous studies have suggested that static prolonged trunk bending could generate lumbar muscle fatigue and introduce creep to the lumbar posterior tissues. Such physical changes could lead to alterations to the lumbar active and passive tissue sharing mechanism and also elevate spinal loading, which is highly associated with the risk of LBP. In the past, most occupational ergonomic studies focused on the instantaneous spine biomechanical responses during task performance. A few studies assessed the changes of spine biomechanics …

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Essays On Aesthetics Of Food, Marya Alhelaili Jan 2015

Essays On Aesthetics Of Food, Marya Alhelaili

Graduate Theses, Dissertations, and Problem Reports (ETD)

This thesis is comprised of three essays that explore the aesthetics of food in contemporary food and table setting design. The essays are: (1) Aesthetics of Food (2) Food Design (3) Table Setting Design.;Food is an everyday necessity. With advancements in production and a plentiful supply in developed countries, the preparation of food and its consumption has developed socially and artistically. There is increased emphasis being placed on how to make and present food in nontraditional ways to enhance aesthetic appeal. Yet, there is not consensus about the aesthetic dimensions of food. The viewpoint that food should be considered a …

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Comparing Different Fault Identification Algorithms In Distributed Power System, Salim Alkaabi Jan 2015

Comparing Different Fault Identification Algorithms In Distributed Power System, Salim Alkaabi

Graduate Theses, Dissertations, and Problem Reports (ETD)

A power system is a huge complex system that delivers the electrical power from the generation units to the consumers. As the demand for electrical power increases, distributed power generation was introduced to the power system. Faults may occur in the power system at any time in different locations. These faults cause a huge damage to the system as they might lead to full failure of the power system. Using distributed generation in the power system made it even harder to identify the location of the faults in the system.;The main objective of this work is to test the different …

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Erionite Studies In Custer National Forest, Daniel Farcas Jan 2015

Erionite Studies In Custer National Forest, Daniel Farcas

Graduate Theses, Dissertations, and Problem Reports (ETD)

Chapter 1. Introduction to erionite. Erionite is an emerging naturally-occurring carcinogen that through continued and frequent exposure can lead to mesothelioma. Erionite exposure is mostly environmental and it affects individuals that live in areas where a natural deposit of the mineral exists.;Chapter 2. What is mesothelioma? Why should I should be afraid? How do you calculate the risk of mesothelioma? What are the results? Mesothelioma, a rare cancer and the most dreaded asbestos-related disease affects the lining of the chest cavity and extremely debilitating and terminal. Rates of Malignant Mesothelioma (MM) are dependent on exposure times, concentrations, smoking, age of …

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First Year Sprouting And Growth Dynamics Of Northern Red Oak, Yellow-Poplar, Red Maple, And Sweet Birch On A Mesic Site Following A Release Burn During A "Shelterwood-Burn" Sequence, Maria Adele Fenwick Jan 2015

First Year Sprouting And Growth Dynamics Of Northern Red Oak, Yellow-Poplar, Red Maple, And Sweet Birch On A Mesic Site Following A Release Burn During A "Shelterwood-Burn" Sequence, Maria Adele Fenwick

Graduate Theses, Dissertations, and Problem Reports (ETD)

Oak regeneration challenges are a widespread issue across the mixed oak and mixed mesophytic forests of the eastern United States. Following disturbance on many mesic and sub-mesic sites oaks are being replaced by faster growing or shade tolerant species. There are many contributing factors, but one thought to have the strongest influence is attributed to the effects of 20th century fire suppression. For millennia fire was an integral part of oak dominated ecosystems and is thought to have contributed to and perpetuated oak's importance in these forests. During the 20th century the frequency and spatial scale of fire was severely …

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