Digital Commons Network^™

The Nonlinear Price Fynamics Of Us Equity Etfs, Gunduz Caginalp, Mark Desantis, Akin Sayrak

Economics Faculty Articles and Research

We investigate the price dynamics of large market-capitalization U.S. equity exchange-traded funds (ETFs) in order to uncover trader motivations and strategy. We show that prices of highly liquid ETFs can deviate significantly from their daily net asset values. By adjusting for changes in valuations, we report the impact of non-classical variables including price trend and volatility using data from 2008 to 2011. We find a cubic nonlinearity in the trend suggesting that traders are not only aware of the underreaction of others, but also self-optimize by anticipating others' reactions, and sell when the uptrend is stronger than usual.

Performance Or Processing? Effects Of Levels Of Processing And Divided Attention On Memory-Related Eye Movements, Wei An

UNLV Theses, Dissertations, Professional Papers, and Capstones

Human memories are expressed either with or without consciousness, termed as explicit and implicit memories, respectively. Different encoding manipulations like levels of processing and divided attention have been shown to affect explicit memories but not implicit memories. These dissociations, however, were only found between explicit and implicit item memories. Whether explicit and implicit relational memories will exhibit similar dissociations is still unknown. In order to determine whether explicit and implicit relational memories dissociated in a similar way as explicit and implicit item memories, the levels of processing and divided attention were manipulated in the present study and participants' relational memories …

Digital Behavior Intervention Plans: Effects On General Education Teacher Fidelity Of Implementation, Christopher G. Holcomb

UNLV Theses, Dissertations, Professional Papers, and Capstones

Students with disabilities often have behavior that interferes with classroom learning. Serious problem behaviors are identified as the most significant factor interfering with learning in the classroom. Unfortunately, chronic behaviors often lead to a student dropping out of school. Current research typically focuses on areas of intervention for these students with little attention towards teacher fidelity of implementation of these interventions. Because of this, student's behavior intervention plans may not show effectiveness (e.g., progress monitoring, data driven decisions). It is important that researchers begin to explore systematic improvements in fidelity of implementation of behavior intervention plan components for general education …

Spectral Decomposition Of The Scattered Light Due To Deposits On The Solar Panel Surface, And Cross Correlated To Power Loss, Suzanna Ho

UNLV Theses, Dissertations, Professional Papers, and Capstones

The electric energy generated by solar panels declines due to dust particulates, bird deposits, water spots, and other contaminants that inhibit sunlight absorption and promote light scattering. As part of our research, we use cameras to capture images of solar panels, and analyze the images to detect the amount of scattered light. The more scattered light there is, the less light there is to penetrate the solar panel glass and reach the part of the panel that converts incident light to electric energy; therefore, less energy is generated. In this paper, we discuss the classification algorithm we developed to classify …

Postural Sway And Brain Hemispheric Power Spectral Density Under Different Attentional Focus Conditions, Sharon Jalene

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this study was to determine the differences, if any, in the root mean square error (RMSE) of postural sway and hemispheric power spectral density (PSD) in the alpha and beta bands (8-12Hz and 12-25Hz) during different conditions of attentional focus (i.e., internal focus (IF), and external focus (EF) and a control condition (C)). Previous studies have shown that the adoption of IF and EF significantly alter motor performance and that EF promotes automaticity (Wulf, 2013). Sports performance and balance studies utilizing EEG spectral analyses report increased alpha oscillations during expert performance and stable balance and increased beta …

An Examination Of Implicit Values In Cornerstone Student Affairs Textbooks, Nathan Slife

UNLV Theses, Dissertations, Professional Papers, and Capstones

The field of student affairs is properly cautious about indoctrination. Indoctrination, after all, clearly contradicts the field's ethical statements and standards. These cautions have led student affairs researchers to investigate explicit values in the field to prevent explicit forms of indoctrination. However, recent investigations of implicit values in the discipline of psychology have revealed a potential new source of indoctrination not currently studied in student affairs. Specifically, psychological researchers have identified a system of implicit values called liberal individualism that has been found to be pervasive throughout the psychological discipline. Given the widely acknowledged link between student affairs and psychology, …

Impact Of A Grade Contract Model In A College Composition Course: A Multiple Case Study, Nayelee Villanueva

UNLV Theses, Dissertations, Professional Papers, and Capstones

Due to the complex nature of assessment in critical pedagogy practices, continued research is necessary in order to investigate the constantly evolving nature of education and the way we come to know how people learn. To research assessment in the critical classroom requires both instructor and students. This qualitative multiple case study investigated impacts of a grading contract as a form of assessment on student writing in a Basic Writing composition course. This study examined the impacts of a grade contract on students' writing, motivation for writing, revision practices, authorship and expectations of a Basic Writing composition course. Through a …

A Secure Communication System For Early Childhood Collaboration System, Hao Kang

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

The Early Childhood collaboration System (ECCS) is a distributed health data system which provides coordinated, de-identified healthcare information to various types of data consumers. To satisfy this requirement, the ECCS needs a matcher that utilizes Personal Identifying Information (PII) to coordinate information from a wide range of data sources. Due to the sensitivity of PII, the ECCS also needs to guarantee that only matcher can access PII. This report describes a reusable subsystem, called Medical Records Secure Messaging (MRSecureMessaging), which utilizes a reliable cryptographic algorithm to encrypt PII and other confidential data so that matcher and data consumers cannot access …

Training Paraeducators To Use Behavior Management Strategies: Implementation And Evaluation Of A Brief Targeted Intervention, Aubrey Whiting

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Training paraprofessionals to be highly qualified providers of services to students with disabilities is a requirement of the Individuals with Disabilities Education Improvement Act (IDEIA), although many special education paraprofessionals still lack the skills and knowledge to work with students with special education needs – particularly those who engage in disruptive behaviors. This project evaluated the use of one module of a 10-week online paraeducator inservice training (Morgan et al., 2004) that focused on behavioral interventions. Five paraprofessionals who currently work at a public school for students with significant behavior problems in a rural school district in the Western United …

Design And Testing Of A Nanosatellite Simulator Reaction Wheel Attitude Control System, Fredric William Long

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Attitude control of a satellite is required for the pointing of communications antennas and other instruments. For this reason, a control algorithm capable of precision pointing is important. Because the process of sending a satellite into space is time consuming and costly, ground-based methods of testing are paramount. A simulator is a low-cost, groundbased system made to mimic the conditions of a weightless satellite in space. The simulator used in this project controls attitude through applying torque to reaction wheels. The objective of this project is to derive and test a control algorithm for the attitude control of a satellite …

Implementation Of Effective Instructional Routines, Praise Statements, Response Opportunities, And Error Correction Through Professional Training, Coaching And Observation, Sallie Richardson

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Professional development opportunities can range from a single workshop to long term ongoing training. Research shows that an inspiring and informed teacher is one of the most important school related factor influencing student achievement. The best professional development for new teachers is ongoing, experiential, and collaborative, while providing an opportunity for practice, reflecting and mentoring for successful development. Most professionals involved in professional development would agree that the goal of staff development is to produce a change in participant’s knowledge, behaviors, understanding, skills, values, and beliefs (Hord, S. & Monk, B. 1997). The purpose of this creative project was to …

Volatile Organic Compounds And Formaldehyde Levels In Ground-Based Simulated Spacecraft Cabins And The Comparison Of Two Analysis Methods: Epa/To-15 (Gc/Ms) And Nasa (Gc/Gerstel Thermal Desorption System), Kameca Alana Shields

Honors Capstone Projects and Theses

No abstract provided.

Preliminary Transcriptome Analysis And Homeobox Gene Isonlation For Tomocerus Minor (Entomobryomorpha: Tomoceridae), Alejandro Alaniz

Theses and Dissertations - UTB/UTPA

Collembola, or “springtails,” are small, edaphic arthropods classified as Entognatha; a group traditionally included as part of Hexapoda and sister-group to the true insects. However, some genetic studies suggest that they may instead have derived from a separate crustacean lineage rather than from a proto-Insecta lineage. The unique abdominal structures that develop on the collembolan ventral abdomen appear to be appendicular in origin – atypical to the canonical, appendage-less insect abdomen ground plan. I developed culture and embryo fixation protocols for; and sequenced and analyzed a multi-stage embryo transcriptome for Tomocerus minor (Collembola: Entomobryomorpha). This analysis annotated 14,417 distinct genes, …

Difference In The Perception Of Political Art Inside And Outside The Art Gallery, Jose Maria Parga

Theses and Dissertations - UTB/UTPA

The purpose of the research for this exhibit was to explore whether a major difference exists in the way political art is perceived by an audience when the art is in an art exhibition and when it is seen in an urban environment. Since the subject matter of En el País de No Pasa Nada, is the current wave of violence and corruption happening in Mexico, the targeted audience for this exhibited is limited to Mexican people and people on the US border with Mexico. If there is a difference in perception, what does the work of art gain, and …

Low Speed Water Tunnel Testing, John J. Taylor

Theses and Dissertations - UTB/UTPA

Water tunnels are ideal for studying flow patterns for hydrodynamic effects. The functionality of the University of Texas-Pan American water tunnel was limited by not being able to measure forces and moments corresponding to flow patterns. This report delivers an experimental set-up for calibrating the velocity of the water and development of a load measuring system to relate simultaneous visual investigation. An in-depth parts breakdown of the SST-model pump and the dye injection system for flow visualization will be reviewed. Few balances have been made for water tunnels due to small and difficult to measure flow-induced forces. The motive is …

Reflections Of Oppression, Fatemeh Semiari

Theses and Dissertations - UTB/UTPA

This thesis is an investigation into the lives of women living in Iran. I develop a critical framework for understanding it. It is now my understanding that women suffer greatly from the restrictions they are subjected to. I discuss what some of these restrictions are, and how these pressures create turmoil and confusion within some women. The artwork created for my thesis project is a reflection upon the relationship between social proscription and a woman’s desire to express her individuality publicly. The women I portray in my thesis project exhibit a range of emotions such as anger, depression, despair, defeat, …

Gps-Miv: The General Purpose System For Multi-Display Interactive Visualization, Irving A. Gonzalez Garza

Theses and Dissertations - UTB/UTPA

The new age of information has created opportunities for inventions like the internet. These inventions allow us access to tremendous quantities of data. But, with the increase in information there is need to make sense of such vast quantities of information by manipulating that information to reveal hidden patterns to aid in making sense of it. Data visualization systems provide the tools to reveal patterns and filter information, aiding the processes of insight and decision making. The purpose of this thesis is to develop and test a data visualization system, The General Purpose System for Multi-display Interactive Visualization (GPS-MIV). GPS-MIV …

The Best Bullies: A Critical Analysis Of Young Adult Anti-Bullying Novels, Nina Marie Bone

Theses and Dissertations - UTB/UTPA

Recently, bullying has become a critical area of research across disciplines exploring effective tools for dealing with this increasing problem. Emerging from this critical research is a new sub-genre of young adult (YA) anti-bullying literature that is becoming increasingly popular. This thesis offers a critical analysis of the contemporary YA anti-bullying literature and how it corresponds to The Bullying Circle, a highly effective bully prevention program tool. This work will incorporate scholarship about the educational interpretation of YAL and the potential impact it has on adolescents. Looking at The Chocolate War by Robert Cormier and Stargirl by Jerry Spinelli with …

Overview Of Inference About Roc Curve In Medical Diagnosis, Jingjing Yin

Biostatistics: Faculty Publications

Medical diagnosis aims to identify diseased individuals through the evaluation of the measurements of some biomarkers by performing a diagnostic test based on some biomarker measurements. Biomarkers are measured on either discrete or continuous scale and continuous biomarkers are utilized more often in medical practice. This article introduces the most popular tool for evaluating continuous biomarkers: the Receiver Operating Characteristic (ROC) curve.

Utilization-Focused Evaluation Of A School District Leadership Pipeline, Whitnee Shaffer

Dissertations

The Future Leaders Academy is a program for aspiring leaders that is directed by the Hillsborough County Public Schools Leadership Development Department. The research in this paper demonstrates the views of the cadre members that have completed the program. The research provides data and information as to their responses to the effectiveness of the program and whether it was beneficial to be a part of this leadership program. The following details the rationale for the research and the results of the surveys from the cadre members.

The Game Of Chess: A Conduit To Increase Student Academic Achievement In Pinellas County: A Policy Advocacy Document, Douglas Williams

Dissertations

The research about chess and education is very compelling. The usefulness of chess as an educational activity is particularly valid among children whose minds are entering the cognitive phase of abstract thinking. However, chess is useful among all age groups. Chess has been shown to improve cognitive abilities among educationally low-functioning students, and it has been shown to help students academically when traditional methods have failed to produce the desired outcome. Most people think of chess as a game, and I think the time has come for educators to think about chess in a different light. It is a game, …

A Balanced Approach: Advocating For Middle School Improvement That Levels The Playing Field, Derrik Craun

Dissertations

With a large disparity in the rate of suspension incidents received between African American and White students, it is evident why there still exists a gap in academic achievement. Too often we rely heavily on out of school suspensions as a consequence for student misbehavior. This approach leads to students falling behind academically and feeling less connected to their learning environment. My study takes a close look into establishing district policy to help each middle school offer a balanced approach to addressing student discipline in order to improve behavior and increase the amount of instructional time that African American middle …

Recruiting Minority Faculty: The Effects Of The Bradley Memo Of Understanding On An Urban School District - A Program Evaluation Dissertation, Lois Mckee

Dissertations

This Program Evaluation Plan (PEP) explores aspects of the Bradley Memorandum of Understanding (MOU) with respect to its implementation in Pinellas County Schools (PCS). Although the Bradley MOU has many facets, this dissertation examines the minority faculty initiative portion of the agreement. There are many obstacles to overcome regarding attracting African American teachers to the PCS district, and they seem to be similar to struggles found in other districts across the state of Florida. By implementing a pre and post survey and conducting interviews with teachers and district employees, I was able to discover that Pinellas County Schools is showing …

Teacher And Evaluator Perspectives On The Teacher Evaluation Process For Teachers Of English Language Learners: A Change Leadership Plan, Nancy Martinez

Dissertations

This paper examines the need to add indicators to the current teacher evaluation system that are specific to English Language Learners (ELLs). Florida teacher evaluation protocols do not specify ELL-specific instructional strategies. This study explores perceptions of ELL teachers and school administrators on the fairness of current evaluative practices for ELL teachers. I considered research that supported the need for differentiated instruction for ELLs. I used the diagnostic framework by Wagner et al. (2006) to identify “arenas” of change: culture, context, conditions, and competencies. I used these arenas to present the existing situation in a school district. I then presented …

Teacher And Evaluator Perspectives On The Teacher Evaluation Process For Teachers Of English Language Learners: A Policy Advocacy Document, Nancy Martinez

Dissertations

The focus of this study is on teacher evaluation systems. I examine the various teacher evaluation system currently implemented in Florida. These teacher evaluation frameworks approved by the Race to the Top initiative use protocols that do not provide opportunities for differentiating instructional practices specific to English Language Learners. The results from this analysis in combination with the wealth of research available on instructional practices for ELLs suggest a need for a change. This paper supports the need for a revision of the current teacher evaluation frameworks to include differentiation of ELL-specific indicators in the current teacher evaluation system that …

A Policy Advocacy Dissertation To Increase Transparency And Accountability Through Social Return On Investment Analysis, David F. Lewis

Dissertations

The connection between the funding of public schools and student achievement is complex. Facing dwindling revenue streams, schools and the communities they serve must begin to assess how effectively and efficiently school systems are utilizing federal, state, and local taxpayer resources. As seen in the previous program evaluation and change leadership projects, the Social Return On Investment (SROI) methodology provides a framework that yields a statistically reliable vehicle for doing so that garners trust through transparency. Toward this end, this document advocates for school districts and their boards of education to incorporate the SROI analysis as an essential element of …

Low Molecular Weight Glucosamine/L-Lactide Copolymers As Potential Carriers For The Development Of A Sustained Rifampicin Release System: Mycobacterium Smegmatis As A Tuberculosis Model, Jorge Ragusa

Department of Chemical and Biomolecular Engineering: Dissertations, Theses, and Student Research

Tuberculosis, a highly contagious disease, ranks as the second leading cause of death from an infectious disease, and remains a major global health problem. In 2013, 9 million new cases were diagnosed and 1.5 million people died worldwide from tuberculosis. This dissertation aims at developing a new, ultrafine particle-based efficient antibiotic delivery system for the treatment of tuberculosis. The carrier material to make the rifampicin (RIF)-loaded particles is a low molecular weight star-shaped polymer produced from glucosamine (molecular core building unit) and L-lactide (GluN-LLA). Stable particles with a very high 50% drug loading capacity were made via electrohydrodynamic atomization. Prolonged …

Measurement Based Statistical Model For Path Loss Prediction For Relaying Systems Operating In 1900 Mhz Band, Masoud Dao Hamid

Theses and Dissertations

Relays play important role in deployment of Long Term Evolution (LTE) and LTE-Advanced systems. They are used to enhance coverage, throughput and system capacity. The impact of the relay deployment on the network planning has to be modeled so that the above mentioned goals can be achieved. For successful modeling one needs to predict the path loss on the link between an eNodeB and a relay station. The review of literature shows that there is a general shortage of measured data to help empirical understanding of the propagation conditions in relay environment. This dissertation aims at developing empirical path loss …

Changes In R, The R Core Team

The R Journal

CHANGES IN 3.1.2

The R Journal (December 2014) 6(2): Complete Issue, The R Foundation

The R Journal

Editorial, Deepayan Sarkar

Contributed Research Articles

Coordinate-Based Meta-Analysis of fMRI Studies with R, Andrea Stocco

Automatic Conversion of Tables to LongForm Dataframes, Jimmy Oh

Prinsimp, Jonathan Zhang, Nancy Heckman, Davor Cubranic, Joel G. Kingsolver, Travis Gaydos, and J. S. Marron

phaseR: An R Package for Phase Plane Analysis of Autonomous ODE Systems, Michael J. Grayling

Flexible R Functions for Processing Accelerometer Data, with Emphasis on NHANES 2003-2006, Dane R. Van Domelen and W. Stephen Pittard

Applying spartan to Understand Parameter Uncertainty in Simulations, Kieran Alden, Mark Read, Paul S. Andrews, Jon Timmis, and Mark Coles

ngspatial: A Package for Fitting …