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2017

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Special Education Teachers' Experiences And Perceptions Of Instructing Students With Learning Disabilities, Kala Harris Johnstone Jan 2017

Special Education Teachers' Experiences And Perceptions Of Instructing Students With Learning Disabilities, Kala Harris Johnstone

Walden Dissertations and Doctoral Studies

An urban middle school in the northeastern United States was having a problem with low performance on state annual reading tests on the part of students with learning disabilities. Consequently, the middle school was not meeting the reading academic targets that were set by the Department of Education in the northeastern United States. The purpose of this exploratory qualitative case study was to explore special education teachers' experiences and perceptions about how teaching reading to students with learning disabilities was affecting special education teachers' pedagogy. Glasser's choice theory, which theorizes that an individual's behavior is chosen, formed the conceptual framework.- …

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Strategies For Retaining Employees For Call Centers, Kimberly M. Combs Jan 2017

Strategies For Retaining Employees For Call Centers, Kimberly M. Combs

Walden Dissertations and Doctoral Studies

Voluntary employee turnover has several adverse consequences for call center managers, including lowered productivity and decreased profitability. The purpose of this descriptive multiple case study was to explore strategies used to reduced voluntary employee turnover among 2 call center managers in the southern United States. These managers had been recommended by the human resource directors of the organizations because of their implementation of strategies to reduce voluntary employee turnover. The conceptual framework for this study was Herzberg's motivation-hygiene theory. Data were collected from semistructured face-to-face interviews and employee handbooks. The data analysis consisted of compiling the data, disassembling the data …

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Memo To Cannabis Regulators: The Expressions Hair Design Decision Does Not Limit Your Broad Authority To Restrict All Forms Of Discounting, Leslie Gielow Jacobs Jan 2017

Memo To Cannabis Regulators: The Expressions Hair Design Decision Does Not Limit Your Broad Authority To Restrict All Forms Of Discounting, Leslie Gielow Jacobs

McGeorge School of Law Scholarly Articles

No abstract provided.

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A Meta-Analytic Review Of Play Therapy With Emphasis On Outcomes Measures, Scott A. Jensen, Judith N. Biesen, Elizabeth R. Graham Jan 2017

A Meta-Analytic Review Of Play Therapy With Emphasis On Outcomes Measures, Scott A. Jensen, Judith N. Biesen, Elizabeth R. Graham

College of the Pacific Faculty Articles

A meta-analysis of 100 studies of outcomes of play therapy interventions was conducted to determine overall effect of intervention. Different from the Bratton, Ray, Rhine, and Jones (2005), but more consistent with the Lin and Bratton (2015), findings, there was a significant moderate effect for play therapy interventions across all outcomes (d = .44). When 4 studies with aberrantly large effects were removed, this effect was d = .36. These moderate effects are consistent with other meta-analyses that find lower effect sizes for nonbehavioral interventions. Overall study quality was poor with no studies meeting the criteria of randomized control trials. …

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Modulation Of H-Reflex Depression With Paired-Pulse Stimulation In Healthy Active Humans, Preeti Deshpande Oza, Shauna Dudley-Javoroski, Richard K. Shields Jan 2017

Modulation Of H-Reflex Depression With Paired-Pulse Stimulation In Healthy Active Humans, Preeti Deshpande Oza, Shauna Dudley-Javoroski, Richard K. Shields

School of Pharmacy Faculty Articles

Depression of the Hoffman reflex (H-reflex) is used to examine spinal control mechanisms during exercise, fatigue, and vibration and in response to training. H-reflex depression protocols frequently use trains of stimuli; this is time-consuming and prevents instantaneous assessment of motor neuronal excitability. The purpose of this study was to determine if paired-pulse H-reflex depression is reproducible and whether paired-pulse stimulation adequately estimates the depression induced by the more traditional ten-pulse train. H-reflexes were elicited via ten-pulse trains at 0.1, 0.2, 1, 2, and 5 Hz in ten neurologically intact individuals on two separate days. We measured the depression elicited by …

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Interaction Of Very Low Frequency (Vlf) And Extremely Low Frequency (Elf) Waves In The Ionospheric Plasma And Parametric Antenna Concept, Tony C. Kim Jan 2017

Interaction Of Very Low Frequency (Vlf) And Extremely Low Frequency (Elf) Waves In The Ionospheric Plasma And Parametric Antenna Concept, Tony C. Kim

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This research dramatically increase radiation efficiency of very low frequency (VLF) and extremely low frequency (ELF) antenna in the ionosphere by implementing a concept of a parametric antenna. The research addresses the interaction of the electromagnetic waves in the atmosphere; analyzes the radiation efficiency of different types of RF frequencies (ex: Very low Frequency (VLF) and Extremely Low Frequency (ELF)); and includes different types of antennas, such as dipole and loop antennas, in the ionosphere environment and simulating the differences to verify the parametric antenna concept. This VLF analysis can be performed many ways and this VLF frequency is widely …

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Efficient Reasoning Algorithms For Fragments Of Horn Description Logics, David Carral Jan 2017

Efficient Reasoning Algorithms For Fragments Of Horn Description Logics, David Carral

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We characterize two fragments of Horn Description Logics and we define two specialized reasoning algorithms that effectively solve the standard reasoning tasks over each of such fragments. We believe our work to be of general interest since (1) a rather large proportion of real-world Horn ontologies belong to some of these two fragments and (2) the implementations based on our reasoning approach significantly outperform state-of-the-art reasoners. Claims (1) and (2) are extensively proven via empirically evaluation.

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Novel Implementation Of Finite Field Multipliers Over Gf(2m) For Emerging Cryptographic Applications, Nazeem Basha Shaik Jan 2017

Novel Implementation Of Finite Field Multipliers Over Gf(2m) For Emerging Cryptographic Applications, Nazeem Basha Shaik

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Cryptographic and coding theory algorithms use arithmetic operations over finite fields. Finite field multiplications over GF(2m) are critical components for these systems. Well known irreducible polynomials are all-one-polynomials (AOP), equally spaced polynomial (ESP), trinomial and pentanomial. Due to its simple structure, AOP based multiplica- tion is easy to implement and hence the AOP based multiplication of variable length can be used as a standard computation core. In this thesis, first of all, we employ low register complexity AOP based systolic multiplication core to propose multiplication over GF(2m) based on NIST recommended pentanomials. The proposed parallel and serial ar- chitectures use …

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Analysis And Design Of High-Frequency Soft-Switching Dc-Dc Converter For Wireless Power Charging Applications, Abhishek V. Danekar Jan 2017

Analysis And Design Of High-Frequency Soft-Switching Dc-Dc Converter For Wireless Power Charging Applications, Abhishek V. Danekar

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Wireless power transfer (WPT) technology is becoming attractive in a wide variety of applications such as electric-vehicle charging, induction heating, charging portable applications, industrial robots, and biomedical implants. Recent studies have shown various techniques to implement wireless power transfer and these techniques differ based on the type of applications. For example, for electric vehicle charging, the power levels are in the range 5 kW to 25 kW and the operating frequency is in the range 70 kHz to 110 kHz. On the other hand, for consumer applications, the power levels vary from a few watts to hundreds of watts and …

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Multi-Class Classification Of Textual Data: Detection And Mitigation Of Cheating In Massively Multiplayer Online Role Playing Games, Naga Sai Nikhil Maguluri Jan 2017

Multi-Class Classification Of Textual Data: Detection And Mitigation Of Cheating In Massively Multiplayer Online Role Playing Games, Naga Sai Nikhil Maguluri

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The success of any multiplayer game depends on the player’s experience. Cheating/Hacking undermines the player’s experience and thus the success of that game. Cheaters, who use hacks, bots or trainers are ruining the gaming experience of a player and are making him leave the game. As the video game industry is a constantly increasing multibillion dollar economy, it is crucial to assure and maintain a state of security. Players reflect their gaming experience in one of the following places: multiplayer chat, game reviews, and social media. This thesis is an exploratory study where our goal is to experiment and propose …

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The Synthesis Of 3,5-Difluorobenzophenone Derivatives And Their Corresponding Peek Copolymers, Rachael Stuck Jan 2017

The Synthesis Of 3,5-Difluorobenzophenone Derivatives And Their Corresponding Peek Copolymers, Rachael Stuck

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Poly(aryl ether ketone)s (PAEK) are high performance thermoplastics, which are chemically robust, semi-crystalline, and stable at high temperatures. Of the family of PAEKs, poly(ether ether ketone) (PEEK) is a well-known semi-crystalline thermoplastic widely used for electronics, energy, industrial, and medical applications due to its resistance to solvents, radiation, heat, and other environmental factors. The traditional PEEK is prepared from 4,4’-difluorobenzophenone (2) and disodium hydroquinone. However, a challenge is processability, since due to its highly crystalline nature, PEEK possesses very limited solubility. An approach to solve these issues is to pre-functionalize PEEK polymers synthesized by nucleophilic aromatic substitution from 3,5-difluorobenzophenone (1) …

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Toward The Synthesis Of Functionalized Poly (Ether Ether Ketone): Monitoring The Meta-Fluorine Displacement In 3,5,4’-Trifluorobenzophenone, Giovanni Covarrubias Jan 2017

Toward The Synthesis Of Functionalized Poly (Ether Ether Ketone): Monitoring The Meta-Fluorine Displacement In 3,5,4’-Trifluorobenzophenone, Giovanni Covarrubias

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The synthesis of functionalized, linear poly (ether ether ketone), tailored to be semi-crystalline and soluble in a variety of organic-solvents was explored. Nucleophilic aromatic substitution was a chemical reaction method used to condense 3,5,4’-trifluorobenzophenone (TFK) with four different phenols at its para-positioned carbon-fluorine site: 4-methoxyphenol, 3-aminophenol, 4-bromophenol, and m-cresol. Further poly-condensation of functionalized TFK occurred at the meta-positioned carbon-fluorine sites with 4,4’-Bis[4-hydroxyphenoxy] benzophenone (Big A2) and 4,4’-difluorobenzophenone at molar equivalents of 1 to 0.5, respectively. The reaction afforded products that became insoluble in solvents needed for nuclear magnetic resonance spectroscopic (e.g. DMSO-d6) analysis. The lack of desirable compounds compelled the …

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Processing Global Properties In Scene Categorization, Hanshu Zhang Jan 2017

Processing Global Properties In Scene Categorization, Hanshu Zhang

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The current research examined the role of global properties in human observers' scene perception. In Experiment 1, comparisons of four global properties ("natural", "manmade", "open", and "closed") were collected online from a wide range of subjective choices. These answers were analyzed in a pairwise comparison model to generate four standardized reference ranking scales describing the extent to which characteristics can describe scene global properties. In Experiment 2, scene images selected from the reference scales were used to test human's performance in processing global properties conjunctively. Cognitive modeling indicated that human observers were more efficient in categorizing scene images as "natural …

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Exploring The Time-Based Resource-Sharing Model Of Working Memory Through Computational Modeling, Joseph Glavan Jan 2017

Exploring The Time-Based Resource-Sharing Model Of Working Memory Through Computational Modeling, Joseph Glavan

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Working memory is the fundamental component of cognition that allows us to temporarily maintain information needed for concurrent processing. An existing theory from the literature, the time-based resource-sharing (TBRS) model, posits that working memory is a serial, rapidly switching, attentional refreshing mechanism. While others have sought previously to formalize the TBRS model into a computational process model, I go further, using ACT-R to model the influence of working memory on an entire task from end to end. I leverage ACT-R's existing base-level learning mechanism, typically used to model recency and frequency effects in long-term memory, to enact the attentional refreshing …

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Sched-Its: An Interactive Tutoring System To Teach Cpu Scheduling Concepts In An Operating Systems Course, Bharath Kumar Koya Jan 2017

Sched-Its: An Interactive Tutoring System To Teach Cpu Scheduling Concepts In An Operating Systems Course, Bharath Kumar Koya

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Operating systems is an essential course in computer science curriculum, which helps students to develop a mental model of how computer operating systems work. The internal mechanisms and processes of an operating system (OS) are often complex, non-deterministic and intangible which makes them difficult for students to understand. One such concept is central processing unit (CPU) scheduling. CPU scheduling forms the basis of the multiprogramming in an OS. In practice, OS courses involve classroom lectures describing high-level abstractions of the concepts, and students complete programming assignments to apply the material in a more concrete way. Depending on the programming assignments, …

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A Framework For Centralizing Inventory In Pharmaceutical Supply Chains, Kerry Kathleen Ward Jan 2017

A Framework For Centralizing Inventory In Pharmaceutical Supply Chains, Kerry Kathleen Ward

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Effectively choosing the location of inventory in a pharmaceutical supply chain is central to the mission of pharmaceutical distributors. These supply chains are a critical backbone to the healthcare delivery process: the distributors must deliver products to pharmacies, hospitals and retailers at low cost and with a high level of reliability. This thesis provides a method for analyzing demand data to gain insight on the value of centralizing the inventory into either a hub-and-spoke or national network for a pharmaceutical distribution company. Demand data is analyzed using an off-the-shelf analysis tool as well as a new tool developed in SQL …

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An Optimization Compiler Framework Based On Polyhedron Model For Gpgpus, Lifeng Liu Jan 2017

An Optimization Compiler Framework Based On Polyhedron Model For Gpgpus, Lifeng Liu

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General purpose GPU (GPGPU) is an effective many-core architecture that can yield high throughput for many scientific applications with thread-level parallelism. However, several challenges still limit further performance improvements and make GPU programming challenging for programmers who lack the knowledge of GPU hardware architecture. In this dissertation, we describe an Optimization Compiler Framework Based on Polyhedron Model for GPGPUs to bridge the speed gap between the GPU cores and the off-chip memory and improve the overall performance of the GPU systems. The optimization compiler framework includes a detailed data reuse analyzer based on the extended polyhedron model for GPU kernels, …

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Multi-Gain Control: Balancing Demands For Speed And Precision, Lucas Warner Lemasters Jan 2017

Multi-Gain Control: Balancing Demands For Speed And Precision, Lucas Warner Lemasters

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Woodworth's Two-Component Theory (1899) partitioned speeded limb movements into two distinct phases: (1) a central ballistic open-loop mechanism and (2) a closed-loop feedback component. The present study investigated the implementation of multi-gain control configurations that utilized separate gain values for each movement phase. A target acquisition task using Fitts' Law (1954) was performed within a virtual environment using three control devices with three gain settings: mono-gain, dual-gain and continuous gain. The gain settings differed by the amount of gain values available to the participant. It was found that dual-gain and continuous gain configurations yielded lower movement times and higher information-processing …

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Rf Cmos Tunable Gilbert Mixer With Wide Tuning Frequency And Controllable Bandwidth: Design Sythesis And Verification, Xin Hu Jan 2017

Rf Cmos Tunable Gilbert Mixer With Wide Tuning Frequency And Controllable Bandwidth: Design Sythesis And Verification, Xin Hu

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The double-balanced Gilbert mixer is widely used in RF receivers. In general, it is desirable to design a wide tuning frequency Gilbert mixer for low power, high conversion gain, low noise figure, and good linearity, but they are not easy to attain simultaneously. Therefore, trade-offs always exist by tuning design parameters. To observe the trade-off relationship between each tunable parameter and to make a mixer achieve specified requirements easily (i.e., tuning frequency range, bandwidth, and power), an automated design synthesis and verification approach for Gilbert mixer is proposed. A wide tuning CMOS Gilbert mixer design synthesis while keeping the local …

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Structure Stability And Optical Response Of Lead Halide Hybrid Perovskite Photovoltaic Materials: A First-Principles Simulation Study, Siddharth Narendrakumar Rathod Jan 2017

Structure Stability And Optical Response Of Lead Halide Hybrid Perovskite Photovoltaic Materials: A First-Principles Simulation Study, Siddharth Narendrakumar Rathod

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A third-generation of solar cell is based on organic-inorganic hybrid perovskite materials. These have reached up to 22.1% conversion efficiency through exponential growth just within the last decade, compared to much longer improvement times for other photovoltaic technologies. Lead halide perovskites are among the most commonly used materials in this context. Despite the relatively large number of available works on some of these materials, in particular CH3NH3PbI3, others are less investigated. Here, we focused on CH3NH3PbCl3, CH3NH3PbBr3 and CH3NH3PbI3 for assessing structure stability and optical response. Using quantum-mechanics-based first principles approaches, we calculated the optimized structures of these three materials …

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Improvement Of Continuous Wave Radar Measurements In A Partially Controlled Environment, Jared Smith Jan 2017

Improvement Of Continuous Wave Radar Measurements In A Partially Controlled Environment, Jared Smith

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A continuous wave (CW) radar system within a partially controlled environment measures scale model aircraft for mono-static and fully polarimetric radar imaging. Due to a pseudo-far-field setup, wavefront curvature manifests primarily as geometric distortion. Recently proposed phase error models show induced geometric distortion to be independent of aperture size which are verified via measurement for Sensors and Signals Exploitation Laboratory (SSEL) collections. The partially controlled nature of the SSEL introduces stray infrastructural reflections into the measured data. Three methods to reduce stray signals are explored namely: true background subtraction (TBS), running average (RA), and spatial filtering (SF). Of the three …

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Is Humanism To Blame? Heidegger On Environmental Exploitation, Jacob A. Litteral Jan 2017

Is Humanism To Blame? Heidegger On Environmental Exploitation, Jacob A. Litteral

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Humanism has been targeted as the source of environmental exploitation. With the aid of Martin Heidegger's philosophy, this paper will attempt to answer the environmental critique of humanism. It will be shown that humanism is not to blame for environmental exploitation. This paper will also present Heidegger's alternative to contemporary environmentalism in addressing the issue of exploitation.

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Oclep+: One-Class Intrusion Detection Using Length Of Patterns, Sai Kiran Pentukar Jan 2017

Oclep+: One-Class Intrusion Detection Using Length Of Patterns, Sai Kiran Pentukar

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In an earlier paper, a method called One-class Classification using Length statistics of (jumping) Emerging Patterns (OCLEP) was introduced for masquerader detection. Jumping emerging patterns (JEPs) for a test instance are minimal patterns that match the test instance but they do not match any normal instances. OCLEP was based on the observation that one needs long JEPs to differentiate an instance of one class from instances of the same class, but needs short JEPs to differentiate an instance of one class from instances of a different class. In this thesis, we present OCLEP+, One-class Classification using Length statistics of Emerging …

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Pre-Mt. Simon Seismic Sequences Below West-Central Indiana: Local Interpretation And Regional Significance, Andrew Michael Parent Jan 2017

Pre-Mt. Simon Seismic Sequences Below West-Central Indiana: Local Interpretation And Regional Significance, Andrew Michael Parent

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Constraining the composition, structure, and origin of basement provinces, deep assemblages of Precambrian rocks, is largely dependent on deep boreholes and geophysical techniques. This is especially true for the eastern U.S. midcontinent. Here, I employ regional 2-D seismic reflection, Bouguer gravity, and aeromagnetic data to interpret the upper crust below west-central Indiana. Seismic reflection data were donated to Wright State University in 2015. Geopotential data are available through the USGS and affiliates. These geophysical data, together, are analyzed in a regional geologic context. Three distinct seismic stratigraphic sequences are observed on 2-D sections. The first, uppermost sequence, typified by continuous, …

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Enhancing Engineering Education Using Mobile Augmented Devices, Kushal Abhyankar Jan 2017

Enhancing Engineering Education Using Mobile Augmented Devices, Kushal Abhyankar

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Employing effective and modern educational systems that support augmented learning methods such as mobile-based learning, may offer a promising solution to lowering dropout rates and to improving learning interests in engineering education. Mobile-based learning is capturing tremendous attention due to the affordances mobile devices can offer. This project outlines efforts to integrate mobile-based educational technology into the classroom. Leveraging the affordances, we designed a mobile augmented education tool for basic math and physics concepts that allows access to information and additional learning content within the context of classroom learning. Results from the study indicate that there is significant improvement in …

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Experimental Investigation Of A Parametric Excitation Of Whistler Waves, Nathan E. Zechar Jan 2017

Experimental Investigation Of A Parametric Excitation Of Whistler Waves, Nathan E. Zechar

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Previous theoretical work has shown that a parametric interaction between electrostatic lower oblique resonance (LOR) and ion acoustic waves (IAW) can produce electromagnetic whistler waves in a cold magnetized plasma. It was also demonstrated theoretically that this interaction can more efficiently generate electromagnetic whistler waves than by direct excitation using a conventional loop antenna. For the purpose of experimentally validating the above result, an experimental facility was designed and constructed utilizing a vacuum chamber, electromagnets, and a helicon plasma source array capable of producing a volume of plasma with high density and spatial uniformity. Additionally, positioning equipment and plasma diagnostics …

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Conditional Correlation Analysis, Sanjeev Bhatta Jan 2017

Conditional Correlation Analysis, Sanjeev Bhatta

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Correlation analysis is a frequently used statistical measure to examine the relationship among variables in different practical applications. However, the traditional correlation analysis uses an overly simplistic method to do so. It measures how two variables are related in an application by examining only their relationship in the entire underlying data space. As a result, traditional correlation analysis may miss a strong correlation between those variables especially when that relationship exists in the small subpopulation of the larger data space. This is no longer acceptable and may lose a fair share of information in this era of Big Data which …

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Extended Kalman Filter And Lqr Controller Design For Quadrotor Uavs, Muneeb Masood Raja Jan 2017

Extended Kalman Filter And Lqr Controller Design For Quadrotor Uavs, Muneeb Masood Raja

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A quadrotor is a unique class of UAVs with vertical take off and landing (VTOL) capability and has attracted significant attention due to its importance in various applications. This thesis presents the design and experimental implementation of Extended Kalman Filters (EKFs) to estimate the states of a quadrotor and a Linear Quadratic Regulator (LQR) controller with integral action to meet the desired control objectives. In case of the Extended Kalman Filters, two different situations are considered: (1) all the states including the Inertial Measurement Unit (IMU) biases are estimated; (2) only the attitude, altitude, and vertical velocity are estimated. The …

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Mathematical Modeling Of A P-N Junction Solar Cell Using The Transport Equations, Surjeet Singh Jan 2017

Mathematical Modeling Of A P-N Junction Solar Cell Using The Transport Equations, Surjeet Singh

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While analytical models are limited in the situations that they can simulate, they are generally easier to implement than numerical models and provide a rapid view of the variables which affect a certain quantity. Analytical models are also very useful in educational situations; such as a graduate class on photovoltaics. The modeling of the interior workings of a solar cell can be complex and involved; and some of the equations can become quite lengthy. A focus of this thesis work is the derivation of the minority carrier density and minority current density equations for a p-n junction solar cell. The …

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Linking The Variance Of Permeability And Porosity To Newly Interpreted Lithofacies At The Site Of The Illinois Basin - Decatur Project, Decatur, Illinois, Ritu Chaity Ghose Jan 2017

Linking The Variance Of Permeability And Porosity To Newly Interpreted Lithofacies At The Site Of The Illinois Basin - Decatur Project, Decatur, Illinois, Ritu Chaity Ghose

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For effective geological sequestration of CO_2, it is critical to understand the processes associated with CO_2 movement and trapping in reservoirs, which requires a proper understanding of a diverse set of heterogeneous geologic properties. A highly-resolved data set from the Cambrian lower Mt. Simon sandstone reservoir (Unit A) in Decatur, Illinois, was used in a new approach to analyzing the variance of permeability and porosity. Newly interpreted bedding types, along with other factors, including grain size, and presence of bleached alterations, were considered in the analysis of variance. The results reveal that the factors contributing most to the sample variance …

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