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Articles 21031 - 21060 of 22264
Full-Text Articles in Entire DC Network
2015 Georgia Southern University Softball Media Guide, Georgia Southern University
2015 Georgia Southern University Softball Media Guide, Georgia Southern University
Women's Softball Records
- Georgia Southern Softball 2015
Throughfall Nutrients In A Degraded Indigenous Fagus Orientalis Forest And A Picea Abies Plantation In The Of North Of Iran, Parisa Abbasian, Pedram Attarod, Seyed Mohammad Moein Sadeghi, John T. Van Stan, Seyed M. Hojjati
Throughfall Nutrients In A Degraded Indigenous Fagus Orientalis Forest And A Picea Abies Plantation In The Of North Of Iran, Parisa Abbasian, Pedram Attarod, Seyed Mohammad Moein Sadeghi, John T. Van Stan, Seyed M. Hojjati
Earth, Environment & Sustainability: Faculty Publications
Aim of study: The objective of this study was to compare the quantity and quality of TF (throughfall) in an indigenous, but degraded, stand of Fagus orientalis and Picea abies plantation.
Area of study: Forests of Kelar-Dasht region located in Mazandaran province, northern Iran.
Material and Methods: TF measured by twenty collectors that were distributed randomly underneath each stand. For 21 storms sampled in 2012 (August-December) and 2013 (April-June), we analyzed pH, EC, Ca2+, Mg2+, K+, NO3-, and P of gross rainfall (GR) and TF.
Main results: Cumulative interception (I) for F. orientalis and P. abies were 114.2 mm and …
Comprehensive Self-Selected Reading And Student Engagement With The Novel: A Program Evaluation, Jennesis Kathleen Jensen
Comprehensive Self-Selected Reading And Student Engagement With The Novel: A Program Evaluation, Jennesis Kathleen Jensen
Doctoral Dissertations
Not reading (Krashen, 2009) is a phenomenon widely noted in students assigned to read as a part of school curriculum. A solution to the many criticisms and deficits cited in the literature surrounding the practice of not reading may lie in the CSSR (Comprehensive Self-Selected Reading) program chosen for focus in this study. In this high school student-reading program, incoming students are guided through a process of textual self-selection and evaluation in an enthusiastic, engaging, and motivating manner. During an eight-month study duration, thirty-two 10th grade students actively read a total of 24,419 pages collaboratively, and 763.09 pages on average. …
Design Thinking In Education: A Case Study Following One School District's Approach To Innovation For The 21st Century, Loraine Rossi De Campos
Design Thinking In Education: A Case Study Following One School District's Approach To Innovation For The 21st Century, Loraine Rossi De Campos
Doctoral Dissertations
The latest reform movement in education, known as 21st-Century Learning, is in
response to the transition from a primarily industrial-based economy to a knowledge- based one. 21st-Century Learning demands that educational organizations become more receptive to societal changes and provide educational services that can make the contributions needed to sustain our economic position in the world.
The purpose of this dissertation study was to understand how design thinking supports the implementation of 21st-Century Learning within a school district. Moreover, this project was designed to capture and understand how the strategic integration of design thinking, in the form of a District …
The Effects Of A Varied Method Of Instruction On Student Achievement, Transfer, Situational Interest, And Course Retention Rates In Community College Developmental Mathematics, Kevin L. Mccandless
The Effects Of A Varied Method Of Instruction On Student Achievement, Transfer, Situational Interest, And Course Retention Rates In Community College Developmental Mathematics, Kevin L. Mccandless
Doctoral Dissertations
The purpose of this quasi-experimental study was to compare the effects of a varied method of instruction on student achievement, knowledge transfer, situational interest, and course retention rates, relative to a non-varied method of instruction, in community college developmental mathematics. The varied method of instruction consisted of active learning teaching practices with foundations in social constructivism, whereas the non-varied method of instruction was founded in Cognitive Load Theory and consisted primarily of explicit instruction and individual practice.
An initial sample of 139 students who enrolled in six sections of Beginning Algebra at an urban community college in Northern California participated …
Factors That Affect The Reading Comprehension Of Secondary Students With Disabilities, Karen L. Sanford
Factors That Affect The Reading Comprehension Of Secondary Students With Disabilities, Karen L. Sanford
Doctoral Dissertations
Factors that Affect the Reading Comprehension of Secondary Students with Disabilities
Thirty-million Americans are considered functionally illiterate and are unable to complete job applications or understand health care forms. Fifty-seven percent of adults with disabilities believe that job opportunities are limited due to their poor reading ability. Without strong literacy skills, post-secondary college and employment options are limited. The genesis of adult literacy issues can be linked to below-grade level reading at the elementary and secondary school levels. For students with disabilities (SWD), reading deficits are rampant and lead to low self-efficacy and higher drop-out rates. While reading difficulties are …
Single Mothers Getting By: Cultural And Structural Violence In Public Policy, Amara E. Bates
Single Mothers Getting By: Cultural And Structural Violence In Public Policy, Amara E. Bates
EWU Masters Thesis Collection
From the birth of government funded welfare in 1935 through current discussions of welfare reforms, the media and politicians have used rhetoric to make poor single mothers the "other." This paper will apply Galtung's model of the rhetorical and enacted route from cultural violence to structural violence ending in direct violence to this case. To explore the in the creation and "reform" of the welfare system, I will use discourse from various sources such as addresses to congress, public policy, media sources and women's personal accounts as well as analyze directly the policies that were created in response to this …
Biology Ii Lab, Todd Schraw
Postmitotic Expression Of Sod1g93a Gene Affects The Identity Of Myogenic Cells And Inhibits Myoblasts Differentiation, M. Martini, G. Dobrowolny, M. Aucello, Antonio Musaro
Postmitotic Expression Of Sod1g93a Gene Affects The Identity Of Myogenic Cells And Inhibits Myoblasts Differentiation, M. Martini, G. Dobrowolny, M. Aucello, Antonio Musaro
Research outputs 2014 to 2021
To determine the role of mutant SOD1 gene (SOD1G93A) on muscle cell differentiation, we derived C2C12 muscle cell lines carrying a stably transfected SOD1G93A gene under the control of a myosin light chain (MLC) promoter-enhancer cassette. Expression of MLC/SOD1G93A in C2C12 cells resulted in dramatic inhibition of myoblast differentiation. Transfected SOD1G93A gene expression in postmitotic skeletal myocytes downregulated the expression of relevant markers of committed and differentiated myoblasts such as MyoD, Myogenin, MRF4, and the muscle specific miRNA expression. The inhibitory effects of SOD1G93A gene on myogenic program perturbed Akt/p70 and MAPK signaling pathways which promote differentiation cascade. Of note, …
A Comparison Of Two Gluteus Maximus Emg Maximum Voluntary Isometric Contraction Positions, Bret Contreras, Andrew D. Vigotsky, Chris Beardsley, John B. Cronin
A Comparison Of Two Gluteus Maximus Emg Maximum Voluntary Isometric Contraction Positions, Bret Contreras, Andrew D. Vigotsky, Chris Beardsley, John B. Cronin
Research outputs 2014 to 2021
Background. The purpose of this study was to compare the peak electromyography (EMG) of the most commonly-used position in the literature, the prone bent-leg (90°) hip extension against manual resistance applied to the distal thigh (PRONE), to a novel position, the standing glute squeeze (SQUEEZE). Methods. Surface EMG electrodes were placed on the upper and lower gluteus maximus of thirteen recreationally active females (age = 28.9 years; height = 164 cm; body mass = 58.2 kg), before three maximum voluntary isometric contraction (MVIC) trials for each position were obtained in a randomized, counterbalanced fashion. Results. No statistically significant (p …
Reduced Cardiovascular Capacity And Resting Metabolic Rate In Men With Prostate Cancer Undergoing Androgen Deprivation: A Comprehensive Cross-Sectional Investigation, Bradley Wall, Daniel A. Galvao, Naeem Fatehee, Dennis Taaffe, Nigel Spry, David Joseph, Robert Newton
Reduced Cardiovascular Capacity And Resting Metabolic Rate In Men With Prostate Cancer Undergoing Androgen Deprivation: A Comprehensive Cross-Sectional Investigation, Bradley Wall, Daniel A. Galvao, Naeem Fatehee, Dennis Taaffe, Nigel Spry, David Joseph, Robert Newton
Research outputs 2014 to 2021
Objectives. To investigate if androgen deprivation therapy exposure is associated with additional risk factors for cardiovascular disease and metabolic treatment-related toxicities. Methods. One hundred and seven men (42-89 years) with prostate cancer undergoing androgen deprivation therapy completed a maximal graded objective exercise test to determine maximal oxygen uptake, assessments for resting metabolic rate, body composition, blood pressure and arterial stiffness, and blood biomarker analysis. A cross-sectional analysis was undertaken to investigate the potential impact of therapy exposure with participants stratified into two groups according to duration of androgen deprivation therapy (≥3 months). Results. Maximal oxygen uptake (26.1 ± 6.0 mL/kg/min …
Electromagnetic Compatibility In Power Inverter Design, Natalia Bondarenko
Electromagnetic Compatibility In Power Inverter Design, Natalia Bondarenko
Doctoral Dissertations
"Power inverter systems generate significant electromagnetic emissions. Methods were studied to model these systems and to reduce their emissions. Three topics are presented in this dissertation.
Methods were developed to obtain simple SPICE models for complex systems which relate circuit components to physical geometry within the system. These models were derived using measurements or using partial element equivalent circuit (PEEC) and model size reduction techniques developed in this dissertation. Methods were proposed for developing a measurement-based model and were applied to a real power inverter/motor system. The model was used to identify system geometries responsible for critical resonances and to …
Shear Wave Splitting Analysis Beneath Tien Shan: Geodynamic Implications Of Complex Anisotropy, Solomon Gerra Cherie
Shear Wave Splitting Analysis Beneath Tien Shan: Geodynamic Implications Of Complex Anisotropy, Solomon Gerra Cherie
Doctoral Dissertations
"In spite of numerous studies, the mechanisms for the crustal shortening, mountain formation and associated tectonism leading to complex or simply seismic anisotropy formation beneath the Tien Shan Orogenic Belt is still debated. The most popular hypotheses suggested for the existence of seismic anisotropy are small-scale mantle convection, regional scale resistive basal shear and APM induced asthenospheric flow. Here, we used shear-wave splitting (SWS) measurements with good azimuthal coverage to provide additional constraints on the various models proposed by previous studies. One of the most effective approaches utilized to constrain convective mantle flow patterns is the splitting of P-to-S converted …
An Integrated Study For Hybrid Composite Beam (Hcb) Structures, Mohamed Abdelkhalik Aboelseoud
An Integrated Study For Hybrid Composite Beam (Hcb) Structures, Mohamed Abdelkhalik Aboelseoud
Doctoral Dissertations
"The hybrid composite beam (HCB) consists of a self consolidating concrete (SCC) arch that is tied at the end by galvanized strands. The tied arch is encapsulated by a glass fiber reinforced polymer (GFRP) shell. A limited number of researches have studied the essential design methodologies and long-term performance of the HCB. The research presented in this dissertation aimed to more fundamentally understand the structural behavior of this new beam and evaluate its durability. This research study was conducted through four phases. A full-scale bridge load testing was conducted on a single-web HCB bridge during the first phase. The first …
A Novel Powder Factor Based Bench Blast Design Method For Large Surface Coal Mines, Andrew Clifford Blair
A Novel Powder Factor Based Bench Blast Design Method For Large Surface Coal Mines, Andrew Clifford Blair
Doctoral Dissertations
"Large surface coal mines in Wyoming's Powder River Basin ship millions of tons of coal per annum, moving millions of cubic yards of overburden to mine the coal. Much of this volume is blasted in the form of benches, a common mining technique. Increases in production and scale of equipment in the past thirty-five years have created a paradigm shift for drill and blast personnel at these large surface mines, and the explosives industry has yet to create a blast design method specifically tailored for large surface coal mine bench blasting.
This research examines the typical scale of bench blasting …
Vrcc-3d+: Qualitative Spatial And Temporal Reasoning In 3 Dimensions, Nathan Eloe
Vrcc-3d+: Qualitative Spatial And Temporal Reasoning In 3 Dimensions, Nathan Eloe
Doctoral Dissertations
"Qualitative Spatial Reasoning (QSR) has varying applications in Geographic Information Systems (GIS), visual programming language semantics, and digital image analysis. Systems for spatial reasoning over a set of objects have evolved in both expressive power and complexity, but implementations or usages of these systems are not common. This is partially due to the computational complexity of the operations required by the reasoner to make informed decisions about its surroundings. These theoretical systems are designed to focus on certain criteria, including efficiency of computation, ease of human comprehension, and expressive power. Sadly, the implementation of these systems is frequently left as …
On The Design And Analysis Of Compliant Mechanisms Using The Pseudo-Rigid-Body Model Concept, Sushrut Gangadhar Bapat
On The Design And Analysis Of Compliant Mechanisms Using The Pseudo-Rigid-Body Model Concept, Sushrut Gangadhar Bapat
Doctoral Dissertations
"The pseudo-rigid-body model (PRBM) concept, developed for the analysis and design of large-deflection flexible members, has proved over time to be a simple, efficient and accurate tool for the synthesis, analysis and design of compliant mechanisms. This dissertation investigates a variety of compliant mechanism analysis and design problems using the PRBM concept and assists in further advancement of the implementation of the PRBMs. The dissertation begins with the development of a PRBM for a fixed-guided compliant beam with one inflection point in the deformed state. This research investigation advances the concept of characteristic deflection domain to a new synthesis framework …
Dissolution Of Borate Glasses And Precipitation Of Phosphate Compounds, Jaime Lynn George
Dissolution Of Borate Glasses And Precipitation Of Phosphate Compounds, Jaime Lynn George
Doctoral Dissertations
"Borate glasses have been developed for biomedical applications such as scaffolds for soft tissue and bone repair. The dissolution processes of borate glasses in phosphate-containing aqueous solutions were studied by µ-Raman spectroscopy which provided information about the types and concentrations of borate species released into the solution as a function of time and characterized the formation of calcium phosphate reaction products on the glass surface. Boric acid molecules (H3BO3) and borate anions (B(OH)4-) can be detected in solution and their relative concentrations depend on the solution pH.
Static and dynamic single-pass flow-through experiments …
Origin And Stratigraphic Architecture Of The Middle Permian Lower And Upper Quanzijie Low-Order Cycles, Bogda Mountains, Nw China, Jonathan Obrist-Farner
Origin And Stratigraphic Architecture Of The Middle Permian Lower And Upper Quanzijie Low-Order Cycles, Bogda Mountains, Nw China, Jonathan Obrist-Farner
Doctoral Dissertations
"This study is carried out in the Bogda Mountains, NW China, and aims to provide a detailed sedimentary, stratigraphic, environmental, and paleoclimatic reconstruction in the paleo-mid-latitude along the east coast of Pangea. The Middle Permian lower and upper Quanzijie low-order cycles (QZJ LCs) provide a nearly complete sedimentary record in an area were little is known. In the first part of this work, the previously-established QZJ LC is divided into two LCs on the basis of regional stratigraphic correlation and major changes in depositional environments and tectonic and climatic processes. The newly-established lower QZJ LC is mainly composed of meandering …
Fusion Welding Of Diboride-Carbide Ceramic Composites, Derek Scott King
Fusion Welding Of Diboride-Carbide Ceramic Composites, Derek Scott King
Doctoral Dissertations
"Plasma and pulsed plasma arc welding (PAW and PPAW) processes were used to fusion weld ZrB2 containing 20 vol% ZrC. Varying welding parameters resulted in changes in weld pool shape and size, and the size of ZrB2 grains within the fusion zone. For PAW processes that resulted in a keyhole fusion zone (full penetration), the arc to workpiece power transfer efficiency was estimated to be 2 grain lengths were observed to decrease between binary PAW FZs (~1 mm in length), and binary PPAW FZs (~0.8 mm in length), and an increasing aspect ratio for ZrB2 grains in …
Analysis Of Ion Emitting Jet Structures During Ionic Liquid Electrospraying, Shawn W. Miller
Analysis Of Ion Emitting Jet Structures During Ionic Liquid Electrospraying, Shawn W. Miller
Doctoral Dissertations
"The ionic liquid [Bmim][DCA] is a propellant candidate for a standalone electrospray thruster or a dual-mode propulsion system. Characterization of positive polarity ions produced by [Bmim][DCA] capillary emitters with a nominal extraction voltage of 2.0 kV within a quadrupole and time-of-flight mass spectrometers is presented along with the predictions of propulsion performance. Flow rates from 0.05 to 2.18 nL/s are used to investigate the impact variations in the flow parameter have on the electrospray plume. The retarding potential analysis reveals ions emitted from the capillary are formed below the emitter potential of 500 eV. Angular distributions indicate broadening of both …
Volterra Difference Equations, Nasrin Sultana
Volterra Difference Equations, Nasrin Sultana
Doctoral Dissertations
"This dissertation consists of five papers in which discrete Volterra equations of different types and orders are studied and results regarding the behavior of their solutions are established. The first paper presents some fundamental results about subexponential sequences. It also illustrates the subexponential solutions of scalar linear Volterra sum-difference equations are asymptotically stable. The exact value of the rate of convergence of asymptotically stable solutions is found by determining the asymptotic behavior of the transient renewal equations. The study of subexponential solutions is also continued in the second and third articles. The second paper investigates the same equation using the …
Constitutive Activity In Orphan G Protein Coupled Receptors, Adam Lee Martin
Constitutive Activity In Orphan G Protein Coupled Receptors, Adam Lee Martin
Doctoral Dissertations
"The goal of this research was to use a distal signaling pathway analysis to evaluate the extent of agonist independent constitutive signaling among orphan class-A G protein coupled receptors (GPCRs). These receptors translate extracellular signals via conformational change into intracellular activation of different G proteins and subsequent second messenger synthesis. These small molecules regulate cellular biochemistry, eventually leading to nuclear signaling that results in changes in gene expression. Some GPCRs are capable of signaling in the absence of an activating ligand, a phenomenon called constitutive activity that is inhibited via an "inverse-agonist". The use of cAMP dependent Luciferase expression is …
Design Studies Of Infrastructural Development For Applications Of Hydrogen Energy Technologies, Yousif M. H. Hamad
Design Studies Of Infrastructural Development For Applications Of Hydrogen Energy Technologies, Yousif M. H. Hamad
Doctoral Dissertations
"Countries around the world are trying to reduce their energy consumption, fossil fuel usage, and greenhouse gas (GHG) emissions. According to the International Energy Outlook 2012 released by the U.S. Energy Information Administration (EIA), the estimated fuel economy and greenhouse gas emissions standards proposed for light-duty vehicles for model years 2017-2025 has an increase of 44% in fuel economy and a reduction of 34% in GHG emissions. The use of alternative fuel vehicles and renewable energy sources are, therefore, inevitable toward achieving this goal. Biogas has untapped potential as an alternative energy source. This immediately available resource would allow countries …
Modeling Supply Chain Interdependent Critical Infrastructure Systems, Varun Ramachandran
Modeling Supply Chain Interdependent Critical Infrastructure Systems, Varun Ramachandran
Doctoral Dissertations
"While strategies for emergency response to large-scale disasters have been extensively studied, little has been done to map medium- to long-term strategies capable of restoring supply chain infrastructure systems and reconnecting such systems from a local urban area to national supply chain systems. This is, in part, because no comprehensive, data-driven model of supply chain networks exists. Without such models communities cannot re-establish the level of connectivity required for timely restoration of goods and services. This dissertation builds a model of supply chain interdependent critical infrastructure (SCICI) as a complex adaptive systems problem. It defines model elements, data needs/element, the …
Enabling Near-Term Prediction Of Status For Intelligent Transportation Systems: Management Techniques For Data On Mobile Objects, Lasanthi Nilmini Heendaliya
Enabling Near-Term Prediction Of Status For Intelligent Transportation Systems: Management Techniques For Data On Mobile Objects, Lasanthi Nilmini Heendaliya
Doctoral Dissertations
"Location Dependent Queries (LDQs) benefit from the rapid advances in communication and Global Positioning System (GPS) technologies to track moving objects' locations, and improve the quality-of-life by providing location relevant services and information to end users. The enormity of the underlying data maintained by LDQ applications - a large quantity of mobile objects and their frequent mobility - is, however, a major obstacle in providing effective and efficient services. Motivated by this obstacle, this thesis sets out in the quest to find improved methods to efficiently index, access, retrieve, and update volatile LDQ related mobile object data and information. …
Synthesis, Characterization And Application Of Acrylic Colloidal Unimolecular Polymer (Cup), Ameya Manohar Natu
Synthesis, Characterization And Application Of Acrylic Colloidal Unimolecular Polymer (Cup), Ameya Manohar Natu
Doctoral Dissertations
"Colloidal Unimolecular Polymer (CUP) particles were prepared by the process of water reduction on amphiphilic acrylic copolymers prepared via free radical polymerization technique. The formation of CUP particles was driven by the polymer-polymer interaction being greater than the polymer-solvent interaction and entropically favored by release of the water. It was demonstrated by Dynamic Light Scattering technique that CUP particles based on copolymers below 13,000 MW were unstable and the particles aggregated to a higher particle size. For the polymers with molecular weight (MW) above 13,000, a good correlation between the theoretical and experimental CUP particle size was observed. The rheology …
Printed Circuit Board Power Distribution Network Modeling, Analysis And Design, And, Statistical Crosstalk Analysis For High Speed Digital Links, Ketan Shringarpure
Printed Circuit Board Power Distribution Network Modeling, Analysis And Design, And, Statistical Crosstalk Analysis For High Speed Digital Links, Ketan Shringarpure
Doctoral Dissertations
"High-speed digital systems are moving to higher data rates and smaller supply voltages as the scale of integration goes smaller. With the smaller bit periods and the smaller operating voltages, the tolerable timing and noise margins are reducing. There are many sources of disturbances contributing to the tolerance margins. These margins have to account for inter symbol interference (ISI), reflections, jitter, noise from power distribution networks (PDN) and crosstalk. An important task during the design phase of the system is to find and mitigate the noise from such sources. This thesis proposes modeling and analysis methodology to resolve some of …
Models Predicting The Performance Of Ic Component Or Pcb Channel During Electromagnetic Interference, Chunchun Sui
Models Predicting The Performance Of Ic Component Or Pcb Channel During Electromagnetic Interference, Chunchun Sui
Doctoral Dissertations
"This dissertation is composed of three papers, which cover the prediction of the characteristics of jitter due to crosstalk and due to simultaneous switching noise, and covers susceptibility of delay locked loop (DLL) to electromagnetic interference.
In the first paper, an improved tail-fit de-convolution method is proposed for characterizing the impact of deterministic jitter in the presence of random jitter. A Wiener filter de-convolution method is also presented for extracting the characteristics of crosstalk induced jitter from measurements of total jitter made when the crosstalk sources were and were not present. The proposed techniques are shown to work well both …
Advancements In Uncertainty Quantification With Stochastic Expansions Applied To Supersonic And Hypersonic Flows, Thomas Kelsey West Iv
Advancements In Uncertainty Quantification With Stochastic Expansions Applied To Supersonic And Hypersonic Flows, Thomas Kelsey West Iv
Doctoral Dissertations
"The primary objective of this study was to develop improved methodologies for efficient and accurate uncertainty quantification with stochastic expansions and apply them to problems in supersonic and hypersonic flows. Methods introduced included approaches for efficient dimension reduction, sensitivity analysis, and sparse approximations. These methods and procedures were demonstrated on multiple stochastic models of hypersonic, planetary entry flows, which included high-fidelity, computational fluid dynamics models of radiative heating on the surface of hypersonic inflatable aerodynamic decelerators during Mars and Titan entry. For these stochastic problems, construction of an accurate surrogate model was achieved with as few as 10% of the …