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Two Essays On Investor Sentiment, Amin Amoulashkarian

Theses and Dissertations in Business Administration

The body of literature on investor sentiment underlines its impact on future stock returns, with general consensus that investor sentiments and future returns are negatively correlated (Baker and Wurgler, 2006; Brown and Cliff, 2004). This extends to the notion that a bullish investor would expect returns to be above average, while a bearish investor anticipates below-average returns (Brown and Cliff, 2004).

The first essay proposes a model to examine the influence of unexpected volatility of investor sentiment on the equity risk premium. Assumptions underpinning the model include risk-averse investors, homogeneous expectations regarding asset returns and price changes, and sentiment-influenced expectations …

Graduate Research Project Guide: Secondary Data Analysis, Sei-Young Lee, Siyon Rhee

Faculty Book Gallery

This Open Educational Resource (OER) book presents a step-by-step guide to help graduate students complete a Master’s thesis or a graduate research project paper for those who conduct research using a secondary dataset. Almost all graduate programs require a Master’s thesis/graduate research project as a graduate requirement. However, it is not easy for students to complete a thesis/research project since it requires a mastery of knowledge and skills through the integration of research methodology and statistics. Both research methodology and statistics are not easy subjects for students as well as researchers. Nonetheless, books or other published materials that combine both …

Comparative Study Of 3-D Planned Spatially Fractionated Radiation Therapy Utilizing An External Compensator, Standard Definition Mlcs, And High Definition Mlcs, Christine Grow

Masters Projects

Spatially fractionated radiation therapy (SFRT) often has a radiological advantage in the management of bulky tumors over traditional radiation treatment regimes. Implementation of SFRT into linear accelerator-based clinics can give radiation oncology departments another tool to increase the quality of life in patients undergoing treatment for large and bulky tumors. MLC-based static fields and external grid compensators offer clinicians simple routes to introduce SFRT into their program.

Methods

A total of 10 patients, all of whom had bulky thoracic tumors and were previously treated with conventional radiotherapy, were chosen for this retrospective SFRT study. The researcher created three plans for …

Early Career Special Education Teacher Lived Experiences During Covid-19, Sydney Parks

Graduate Student Dissertations, Theses, Capstones, and Portfolios

The stories and lived experiences of Early Career Special Education Teachers must be shared. This study provides more information on the beginning lived experiences of Special Education Teachers during COVID-19. The researcher conducted a qualitative narrative design to further investigate burnout and self-efficacy among Early Career Special Education Teachers. The researcher conducted an open-ended question interview that allowed participants to relive their experience teaching during COVID-19. The conclusion of this study is that Special Education Teachers love their job but seek more financial security, administrative support and guidance, recognition.

Gastrointestinal Stromal Tumor Presenting As Food Impaction And Pseudo-Achalasia, Mark S. Obri, Faisal M. Nimri, Wasih Kamran, Rund Nimri, Robert Pompa, Tobias Zuchelli

Gastroenterology Articles

Gastrointestinal stromal tumors (GISTs) are one of the most common mesenchymal tumors of the gastrointestinal tract. Studies report the incidence of GIST to be 14.5 per million, with 18% being diagnosed incidentally. The most common location is the stomach while the esophagus is the rarest, representing only 0.7% of cases. The clinical manifestations of GISTs vary. Most patients present with bleeding and gastric discomfort. Some may present with life-threatening hematemesis or melena. We present a unique case of a GIST presenting as pseudo-achalasia and food impaction.

Bioethanol Production By Candida Tropicalis Isolated From Sheep Dung, Furdos Noori. Jafer

Baghdad Science Journal

Microorganisms have an active role in biotechnology for example yeasts, especially in some genus like Saccharomyces, Pichia, and Candida. C.tropicalis one of the most important species of Candida and despite it is one of the causative agents of candidiasis but it has a major role in the production of many chemical compounds. C.tropicalis in the previous study was isolated from sheep dung and morphologically and molecularly classified the result of sequencing was elucidate 100% similarity between the studied isolate and other isolates inserted in DNA Data Bank of Japan DDBJ, physiologically this isolate tolerated 6% ethanol concentration in broth media …

A Developed Colorimetric Assay Using Unmodified Gold Nanoparticles For The Identification Of Acinetobacter Baumannii Isolates From Different Clinical Samples, Mohamed M. Sehree, Amani M. Al-Kaysi, Hanaa N. Abdullah

Baghdad Science Journal

Acinetobacter baumannii (A. baumannii ) is considered a critical healthcare problem for patients in intensive care units due to its high ability to be multidrug-resistant to most commercially available antibiotics. The aim of this study is to develop a colorimetric assay to quantitatively detect the target DNA of A. baumannii based on unmodified gold nanoparticles (AuNPs) from different clinical samples (burns, surgical wounds, sputum, blood and urine). A total of thirty-six A. baumannii clinical isolates were collected from five Iraqi hospitals in Erbil and Mosul provinces within the period from September 2020 to January 2021. Bacterial isolation and biochemical identification …

The Classical Continuous Optimal Control For Quaternary Nonlinear Parabolic Boundary Value Problems, Jamil A. Ali Al-Hawasy, Wissam A. Abdul-Hussien Al-Anbaki

Baghdad Science Journal

In this paper, our purpose is to study the classical continuous optimal control (CCOC) for quaternary nonlinear parabolic boundary value problems (QNLPBVPs). The existence and uniqueness theorem (EUTh) for the quaternary state vector solution (QSVS) of the weak form (WF) for the QNLPBVPs with a given quaternary classical continuous control vector (QCCCV) is stated and proved via the Galerkin Method (GM) and the first compactness theorem under suitable assumptions(ASSUMS). Furthermore, the continuity operator for the existence theorem of a QCCCV dominated by the QNLPBVPs is stated and proved under suitable conditions.

Performance Evaluation Of A Triple Concentric Tube Heat Exchanger Using Deionized Water And Oil-40, Huda Majid Hasen

Baghdad Science Journal

This study examines experimentally the performance of a horizontal triple concentric tube heat exchanger TCTHE made of copper metal using water as cooling fluid and oil-40 as hot fluid. Hot fluid enters the inner annular tube of the TCTHE in a direction at a temperature of 50, 60 and 70 oC and a flow rate of 20 l/hr. On the other hand, the cooling fluid enters the inner tube and the outer annular tube in the reverse direction (counter current flow) at a temperature of 25 oC and flow rates of 10, 15, 20, 25, 30 and 35 l/hr. The …

Religious Liberty As A Judicial Autoimmune Disorder: The Supreme Court Repudiates Its Own Authority In Kennedy V. Bremerton School District, Andrew Koppelman

UC Law Journal

No abstract provided.

Addendum To Ap Art History Curriculum: Impressionism And Its Female Painters, Julie Short

Theses

This project seeks to add depth to Content Area 4 of the AP Art History Curriculum by supplementing the study of Impressionism as a whole, as well as including the study of the role of women artists in the movement and their contributions to Impressionism and Modern art in general. The goal is to provide students with greater historical context and formal analysis of major Impressionist works, as well as to expose students to the accomplishments of more female artists.

Reconsidering Fertility Imagery In The Murals Of Teotihuacan, Grace T.O. Ray

Theses

This thesis explores fertility imagery in the Tepantitla Paradise and Tetitla Goddess murals of ancient Teotihuacan in Mexico. In the beginning of the 1970s, these murals had been utilized as case studies in the assertion for the existence of a central female deity known as the Great Goddess, based on an abundance of fertility imagery within the scenes. Scholarship in the field has since discredited this theory, but the deity in the murals remains unidentified. In addition, the city does not offer surviving written texts to provide context for cosmological beliefs, only Teotihuacan’s vibrant material culture was left behind after …

Western Pearlshell (Margaritifera Falcata) Extirpation In The Smith River, Montana, With A Possible Link To Warming Water Temperatures, David M. Stagliano

Western North American Naturalist

Western pearlshell (Margaritifera falcata) populations are in decline across the species’ range in western North America. In 2008, Montana categorized the western pearlshell as an imperiled species of concern (S2) based on reduced detections at historically occupied sites and few viable populations. Between 2004 and 2014, we surveyed 24 Smith River reaches (61 total sites in the watershed) for the presence of western pearlshell populations. Despite historical and anecdotal descriptions of abundant western pearlshell in the Smith River, intensive structured surveys between 2004 and 2007 documented only 4 sections with low-density, nonviable western pearlshell populations (<10 individuals, large size classes [average total length = 70 mm], with no signs of recruitment). In 2014, we revisited these occupied sites to repeat surveys (expending significantly more search time) and observed no live individuals. This was surprising given that, although those populations would certainly die out without recruitment, older individuals can oftentimes persist for decades. Therefore, we consider the western pearlshell mussel extirpated from the Smith River watershed. We reviewed long-term USGS gage discharge and temperature data near the western pearlshell populations to evaluate the potential causal factors for, and timing of, the extirpation. From 3 July to 3 August 2007, water temperatures were at or above the thermal stress levels of the western pearlshell (>25 °C, …

Time To Rethink Higher Education In Singapore And Set Our Own Agenda, Lily Kong

Research Collection School of Social Sciences

In a commentary, SMU President Professor Lily Kong discussed the need to rethink higher education in Singapore and set an impact agenda for Singapore and the region, instead of benchmarking achievements against universities elsewhere. She called for institutes of higher learning to start focusing on research and partnerships that can make a difference to the region.

Patient-Therapist Congruence On Aspects Of The Therapeutic Alliance In Psychotherapy For Medically Unexplained Symptoms, Sarah Daehler

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Medically unexplained symptoms (MUS) are physical symptoms that cannot be explained or are not sufficiently explained by medical examination. These symptoms most typically present as pain or other discomfort, and are associated with significant psychological distress, healthcare utilization, and disability. Both psychologists and medical professionals have struggled to treat this population, and MUS patients have noted their dissatisfaction with the care they receive. The present study analyzed a sample of 174 patient-therapist dyads to explore the role of congruence, or agreement, on aspects of the therapeutic alliance in therapy for MUS as congruence research has not yet been conducted in …

Developing Firmware For Space Weather Probes 2 Using Hdl Coder, Nicholas L. Wallace

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

GPS and wireless communications are affected by interference from the ionosphere. Space weather affects plasma in the ionosphere, causing communication disruptions and reliability issues. To better understand how space weather affects the ionosphere, instruments are flown in space to collect data about the electrical characteristics of plasma in the ionosphere. Space systems require a lot of time and effort to develop and test. This thesis explores how a high level tool can be used to simplify the process and some obstacles that still exist with developing some space systems. To do this, the firmware architecture of a new version of …

Temporally Weighted Averaging: The Effects Of Test Delay On Spontaneous Recovery Of Choice, Jack Van Allsburg

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Foraging animals in natural environments must track the value of different behavioral options in order to make decisions that maximize their food intake. The process by which they track this value is poorly understood, but holds relevance for our understanding of how animals make choices in general. In a series of experiments conducted in operant chambers, we put rat subjects in a choice scenario where they could press two levers, one of which would intermittently produce the delivery of food pellets on a rich (more frequent) schedule, while the other would do the same on a lean (less frequent) schedule. …

Consumption Of A Western Diet Enhanced Colitis-Associated Colorectal Cancer And Dysbiosis Of The Fecal Microbiome In Mice Notwithstanding Dietary Intervention Or Fecal Microbiome Transfer, Daphne Michelle Rodriguez Jimenez

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In a rodent model of inflammation-associated colorectal cancer, consumption of a Western-style diet increases gut inflammation and enhances risk of developing colon tumors. The goal of this dissertation was to understand the contribution of bacteria within the large intestine on colon inflammation and colon tumorigenesis. Two pre-clinical animal studies were performed using two different intervention strategies to shift the microbiome, and potentially gut inflammation and tumor development: 1) an experiment using dietary supplementation with black raspberries, a functional food enriched in bioactive anthocyanins with purported antiinflammatory activity, and 2) an experiment using fecal microbiota transfer from mice fed a healthy …

Evaluating The Effects Of A Teacher-Implemented Mindfulness-Based Intervention On Teacher Stress And Student Prosocial Behavior, Mary L. Phan

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

High levels of teacher stress have a negative impact on teacher performance, maintenance, and student outcomes. Given the escalation in teacher stress levels, it is important to decrease teacher stress to improve their wellbeing. One intervention that has received growing attention in reducing teacher stress is mindfulness training. However, few studies have focused on teachers implementing mindfulness-based interventions (MBIs) both with themselves and with school-age children within their classrooms. Additionally, few studies have examined the fidelity, feasibility, and social validity of teacher-implemented MBIs in a classroom setting. Through a single-case multiple baseline design across four teachers, the current study evaluated …

Stressor: An R Package For Benchmarking Machine Learning Models, Samuel A. Haycock

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Many discipline specific researchers need a way to quickly compare the accuracy of their predictive models to other alternatives. However, many of these researchers are not experienced with multiple programming languages. Python has recently been the leader in machine learning functionality, which includes the PyCaret library that allows users to develop high-performing machine learning models with only a few lines of code. The goal of the stressor package is to help users of the R programming language access the advantages of PyCaret without having to learn Python. This allows the user to leverage R’s powerful data analysis workflows, while simultaneously …

Making Space For Student Agency: A Multilayered Exploration Of Agency And Writing In A First‐Grade Classroom, Kara Decoursey

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Early literacy learning is crucial for later success in reading and writing. We have a limited understanding of generative writing (i.e., expressing ideas in writing) in first grade and further research is warranted. The socially situated nature of writing justifies a study of student agency during writing.

In this study, data were collected before, during, and after 10 writing sessions in a first-grade classroom. Students took a pre- and post-survey that revealed their self-perceptions of their agency and confidence as literacy learners. The participating teacher was interviewed three times and the teacher’s talk was recorded during all 45- to 60- …

Telehealth Acceptance And Commitment Therapy For Adolescents With Transdiagnostic Health-Related Anxiety: A Randomized Controlled Trial, Julie M. Petersen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Health-related anxiety is a growing issue to understand how to treat, particularly following the COVID-19 pandemic. Some studies show that a specific type of therapy, acceptance and commitment therapy (ACT), may be beneficial for health anxiety in adults, but this has not yet been tested with adolescents. The present study is a randomized, waitlist-controlled trial of ACT delivered via Zoom for adolescents struggling with health-related anxiety. A total of 30 adolescents (ages 12-17), plus one caretaker each (N = 60), living in Utah and currently struggling with health-related anxiety were enrolled. The majority of caretakers and adolescents were White, non- …

By Other Means: The Political And Economic Motivations For The Formation Of The Anglo-Japanese Alliance Of 1902 In The United Kingdom, David Cornell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This thesis is an attempt to answer the question of why British political leaders made the Anglo-Japanese Alliance of 1902. To answer this question, I have used primary sources such as government communications, newspaper articles, and articles from scholarly journals. Also, I have consulted the works of past historians to better understand the complex topic of the Anglo-Japanese alliance. This thesis is divided into three chapters. Chapter One explains the events that led up to the creation of the treaty between Britain and Japan and clarifies why this treaty was so unusual for the British Empire in the early 1900s. …

A Cohesive Simulation And Testing Platform For Civil Autonomous Aerial Sensing And Operations, Stockton G. Slack

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Drones (also known as sUAS or small Uncrewed Aerial Systems) are often flown with cameras to take images of an area of land. These images can then be used to create a map by stitching these images together. This map can then be analyzed using scientific principles to learn things about the land and make decisions or take action based on the information.

The scientific application of drones is very advantageous, but flying a drone is inherently dangerous, impacting the safety of the airspace (particularly in the event of a crash), and drones are more dangerous the bigger they are. …

Executive Functioning In Children With Autism And Co-Occurring Neurodevelopmental Disorders: A Systematic Review And Quantitative Analysis, Kandice Benallie

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Children with autism and other NDDs experience some level of executive dysfunction including challenges with problem-solving, judgement, working memory, and flexibility. Considering autism and other NDDs including ADHD and ID have overlapping symptoms, it can be difficult to differentially diagnose the disorders. This dissertation sought to explore how co-occurring ADHD and ID impact the EF of autistic children. The first study systematically reviewed the current research examining EF of autistic children with co-occurring ADHD and ID. Findings suggest that co-occurring ADHD and ID result in increased executive dysfunction as compared to children with autism only. The systematic review also revealed …

Multispecies Genomic Sex Identification Using Ddx3 Gene Polymorphisms, Jessica Felts

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

PCR sex determination assays must be reliable and cost effective due to the frequent and integral use of these assays in biological research and the animal production industry. Thus, the design of proof of a primer pair with a built-in control is warranted to not only bypass the extra cost of a multiplex reaction, but also to prevent anomalous results that have been documented with other primer pairs.

The objective of this study was to design primer pairs with built in PCR amplification control to identify sex in Equus caballus (domestic horse), Homo sapiens (humans), Macaca mulatta (rhesus macaque), and …

Cislunar Navigation Techniques And Navigation Performance Optimization, Quinn P. Moon

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Nova-C is a lunar lander developed by the private company Intuitive Machines to deliver commercial payloads to the Moon. The IM-1 mission set for 2023 will launch and land the Nova-C near the Moon's south pole. In this research, various navigation techniques are explored to determine the lander's position and velocity during key segments. This process is studied for key mission events including trajectory correction maneuvers (TCMs), lunar orbit insertion (LOI), and descent orbit insertion (DOI). Each mission segment, referred to as an Orbit Determination Segment (OD), is analyzed with three different navigation techniques: Monte Carlo Analysis, Linear Covariance Analysis, …

Precipitation And Soil Properties Determine Long-Term Consequences Of Disturbance And Invasion In Drylands, Tyson Terry

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Disturbance and invasive species have dramatic effects on desert plant communities, often resulting in degradation or shifts to alternative plant communities. Climate and soil properties determine water availability to plants, and have been thought to drive patterns of recovery following disturbance and potential for invasion.

In chapter II we used a combination of natural gas pipelines and satellite imagery to understand how recovery from a uniform disturbance differs across precipitation and soil gradients. We used a recovery ratio (disturbed/undisturbed) of pipeline pixels and their undisturbed nearest neighbor pixel to quantify recovery in a comparable way across precipitation gradients. We found …

An Interval-Valued Random Forests, Paul Gaona Partida

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

There is a growing demand for the development of new statistical models and the refinement of established methods to accommodate different data structures. This need arises from the recognition that traditional statistics often assume the value of each observation to be precise, which may not hold true in many real-world scenarios. Factors such as the collection process and technological advancements can introduce imprecision and uncertainty into the data.

For example, consider data collected over a long period of time, where newer measurement tools may offer greater accuracy and provide more information than previous methods. In such cases, it becomes crucial …

A Statewide Evaluation Of Fuel Treatment Effectiveness In Altering Wildfire Outcomes On Public Lands In Utah, Jamela Charmaine Thompson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Fuel treatments are land management activities that reduce living and dead flammable materials on the landscape to mitigate undesirable wildfire behavior and effects. Common treatments in the western United States include mechanical methods such as thinning and mastication, prescribed burns, and chemical methods, such as herbicide application. Treatments usually have multiple objectives, including reducing fire intensity, protecting natural and cultural resources, slowing or disrupting a potential future fire’s path, supporting ecosystem health, and reestablishing low to mid severity fire cycles in ecosystems. Although treatments can potentially modify fire behavior and ecological health, they generally cannot prevent fires from igniting, eliminate …