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2018

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Individual Differences In Creative Cognition, Sarah K. Craig Dec 2018

Individual Differences In Creative Cognition, Sarah K. Craig

Theses and Dissertations

Creativity is increasing in value worldwide, but the processes underlying various creative abilities remain ambiguous. The most frequently used assessments of creativity (i.e., divergent thinking tasks; creative problem-solving tasks) differ in surface features and are also rarely examined together. These inconsistencies, in addition to mixed findings in the literature, have caused considerable debate among creativity researchers concerning the particular roles of independent or dual processes that lead to success on different creativity tests. The present study expounded upon these mixed findings using a factor analytic method. The results indicated that individual differences in working memory and fluency ability impact performance …

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Influence Of Winter Annual Cover Crops And Insect Management Strategies On Insect Pests Of Mississippi Soybean, Daniel Adam Whalen Dec 2018

Influence Of Winter Annual Cover Crops And Insect Management Strategies On Insect Pests Of Mississippi Soybean, Daniel Adam Whalen

Theses and Dissertations

An increasing cultural practice in soybean, Glycine max (L.), production is the use of winter annual cover crops before planting. Species of grasses, legumes, and forbs are planted for many agronomic purposes during the fall months. In the spring, cover crops are killed and soybean planted into the residue. When the termination of the cover crops is delayed for longer lasting benefits, insect pest issues can arise. The movement of insect pests from cover crops to subsequent cash crops happens through a connection known as the “Green Bridge”. Pests found in cover crops such as the pea leaf weevil, Sitona …

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An "[Un]Readiness To Be Touched": The Critique Of Sentimentalism In Sensation Fiction, Rachel Vernell Wolfe Dec 2018

An "[Un]Readiness To Be Touched": The Critique Of Sentimentalism In Sensation Fiction, Rachel Vernell Wolfe

Theses and Dissertations

Early sensation novels such as Wilkie Collins’s The Woman in White, Mary Elizabeth Braddon’s Lady Audley’s Secret, and Ellen Wood’s East Lynne use the eighteenth-century notion of sentiment in very distinct manners. These novels demonstrate a perspective in transition regarding sentimentality in how they apply sentimental qualities to very specific character types. Some characters are extremely sentimental, whereas others appear completely void of emotion and are even described as automata. These sensation novels even feature sentimental journeys and objects, as well as allusions to sentimental novels such as Laurence Sterne’s A Sentimental Journey and Henry Mackenzie’s Man of Feeling. The …

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An Assessment Of State Equations Of Air For Modeling A Blast Load Simulator, Gustavo Emmanuelli Dec 2018

An Assessment Of State Equations Of Air For Modeling A Blast Load Simulator, Gustavo Emmanuelli

Theses and Dissertations

When an explosive detonates above ground, air is principally the only material involved in the transmission of shock waves that can result in damage. Hydrodynamic codes that simulate these explosions use equations of state (EOSs) for modeling the behavior of air at these high-pressure, high-velocity conditions. An investigation is made into the effect that the EOS selection for air has on the calculated overpressure-time waveforms of a blast event. Specifically, the ideal gas, Doan-Nickel, and SESAME EOSs in the SHAMRC code were used to reproduce experiments conducted at the Blast Load Simulator (BLS), a large-scale shock tube operated by the …

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System Dynamics Model Of Necrotic Enteritis And Its Predisposing Factors In Broilers, Yu-Bin Chou Dec 2018

System Dynamics Model Of Necrotic Enteritis And Its Predisposing Factors In Broilers, Yu-Bin Chou

Theses and Dissertations

Necrotic enteritis (NE) caused by Clostridium perfringens type A is an important bacterial enteric disease of global broiler production. However, the dynamic interactions of NE and its predisposing factors are not fully presented by current studies. By using the System Dynamics (SD) Model, the epidemiological changes in susceptible-infected-removed models of NE and avian coccidiosis and their interactions in one or multiple grow-out cycles was established; meanwhile, the growth performance was measured by the average weights of infected and non-infected populations at harvest were estimated. The SD model provided direct and persuasive outcomes of the epidemiology and ecology of NE compared …

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Synthesis, Characterization, And Photophysics Of Symmetric And Unsymmetric -Nhc Pincer Platinum Halide Complexes And Derivatives, Min Zhang Dec 2018

Synthesis, Characterization, And Photophysics Of Symmetric And Unsymmetric -Nhc Pincer Platinum Halide Complexes And Derivatives, Min Zhang

Theses and Dissertations

A series of 24 new photoluminescent symmetric and unsymmetric -NHC pincer Pt complexes was synthesized and characterized, including collection of their 195Pt NMR chemical shifts. In total 18 new X-ray crystal structures, and photophysical studies of these photoluminescent -NHC pincer Pt complexes are reported. -NHC pincer Pt complexes were synthesized and characterized using new -NHC pincer based proligands [(RChetChetCRH3)X2, X = Cl, Br, or BPh4, where het represents imidazolyl, benzimidazolyl, and 1,2,4-triazolyl moieties; R = n-butyl, 3,3-dimethylbutyl, n-hexyl] as starting materials. A new method to synthesize Pt-Cl complexes to prevent halogen mixing was developed using tetraphenylborate salts as proligands. -NHC …

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Temperature Effects On Soybean Vegetative, Physiological, Reproductive Growth And Development, And Seed Yield And Quality, Firas Ahmed Alsajri Dec 2018

Temperature Effects On Soybean Vegetative, Physiological, Reproductive Growth And Development, And Seed Yield And Quality, Firas Ahmed Alsajri

Theses and Dissertations

Temperature is a major factor affecting plant growth and development at all stages. The objectives of this study were to investigate the temperature effects on all aspects of soybean growth and development. Five experiments were conducted at a wide range of temperatures under optimum water and nutrient conditions at specific growth stages. Two cultivars, Asgrow AG5332 (AG) and Progeny P5333RY (PR) from MG V with different growth habits, were used. All studies except the seed germination were conducted in sunlit plant growth chambers under optimum water and nutrient conditions. The seed germination experiment was conducted in a temperature-controlled incubator. Germination …

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Temperature Prediction Of Bioinspired Leaves-On-Branchlet Carbon Nanostructure Based Electric Double Layer Capacitors Under Constant Current, Karnpiwat Tantratian Dec 2018

Temperature Prediction Of Bioinspired Leaves-On-Branchlet Carbon Nanostructure Based Electric Double Layer Capacitors Under Constant Current, Karnpiwat Tantratian

Theses and Dissertations

The spatiotemporal evolution of temperature of leaves-on-branchlet carbon based electric double layer capacitors (EDLCs) under imposed constant current was studied using a continuum thermal model. The hot spot aggregated at the tips of graphene petals (GPs), particularly at the high concave surface, at the beginning of the charging step. As the charging proceeded, the overall temperature rose continuously, and the temperature distribution was likely uniform throughout the graphene petals due to an increasingly uniform distribution of ions on GPs surfaces. To elucidate the effects of electrode geometry on the change of temperature, several simple two-dimensional structures were also simulated in …

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Testament To Home: Using The Cultural Landscape Report For Conserving Historic House Grounds, Sylvia Rody Mclaurin Dec 2018

Testament To Home: Using The Cultural Landscape Report For Conserving Historic House Grounds, Sylvia Rody Mclaurin

Theses and Dissertations

The cultural landscape report (CLR) is a document commissioned by historic sites for the purpose of confirming an historic landscape’s significance and integrity, assessing its defining characteristics, evaluating the condition of its features, and recommending present and future landscape treatments. In this study of six publicly owned historic home grounds in the Deep South, the contents and format of the respective CLR’s are reviewed and site directors interviewed to determine their use of the CLR for their sites. While CLR’s are valuable especially to support bids for funding and other appropriations, directors indicate needs not readily met by their respective …

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The Differences In Stress Levels For African-Americans Working In Technical Based Occupations And Non-Technical Based Occupations In Mississippi, Michelene Piege Brock Dec 2018

The Differences In Stress Levels For African-Americans Working In Technical Based Occupations And Non-Technical Based Occupations In Mississippi, Michelene Piege Brock

Theses and Dissertations

The purpose of this study was to determine if there were any differences in stress levels for African-Americans working in technical and non-technical based occupations. In order to adequately address the differences in stress levels for African-Americans, this study examined the data from an existing study called the Jackson Heart Study. Based on the weekly stress of individuals when performing their occupations, information and data were collected from 3 questionnaires that were correlated with stress and occupations of African-Americans in Mississippi. These questionnaires were the Household Enumeration Form, Personal Data and Socioeconomic Form, and the Stress Form. The research design …

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The Effect Of Bacterial Supplementation On Black Soldier Fly Larval Growth And Development, Emilia Marjatta Kooienga Dec 2018

The Effect Of Bacterial Supplementation On Black Soldier Fly Larval Growth And Development, Emilia Marjatta Kooienga

Theses and Dissertations

With a growing human population, food insecurity is becoming a worldwide problem. As the search for sustainable sources of protein continues, black soldier fly larvae come to the forefront as a partial solution. Full of proteins and fats, the larvae will consume most organic matter and rapidly develop into a usable form. Supplementing black soldier fly larvae with oleaginous microbes Arthrobacter AK19 and Rhodococcus rhodochrous increases their body size by 25%, potentially accelerates their development by one day, and increases their conversion efficiency. Supplementing with Bifidobacterium breve decreased body size, slowed development, and decreased conversion efficiency, underscoring the importance of …

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The Effect Of The Degree Of Centralization Of Control Of Community Colleges On Core Indicators Of Performance Of The Carl Perkins Act, Jake Michel Dec 2018

The Effect Of The Degree Of Centralization Of Control Of Community Colleges On Core Indicators Of Performance Of The Carl Perkins Act, Jake Michel

Theses and Dissertations

This research study was designed to help illuminate if there is a relationship between the quality of career and technical education programs from centralized and decentralized-controlled systems in relation to the level of authority exerted by state governing/coordinating boards over the community college system. This study included data from the 50 states that are part of the United States of America. This study used a quasi-experimental, nonequivalent design. This study did not include randomly selected groups and was a nonequivalent control group design. The independent variables included: centralized or decentralized governance, median household income, the percent of community colleges that …

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The Effects Of A Web-Based Instructional Program: Promoting Student Growth In Reading And Mathematics Achievement, Penelope Pritchett Hill Dec 2018

The Effects Of A Web-Based Instructional Program: Promoting Student Growth In Reading And Mathematics Achievement, Penelope Pritchett Hill

Theses and Dissertations

As advances in technology allowed national and state education assessments to be administered digitally, many school districts transitioned to computer-based instructional programs and assessments to improve student achievement and better prepare students for high-stakes computerized assessments. One such rural public school district in Mississippi implemented a supplemental web-based instructional program, i-Ready, for the first time in the 2017-2018 school year. The purpose of this study was (a) to investigate the effects of the i-Ready program on student achievement in Grades 4 – 5 reading/language arts and mathematics and (b) to determine if there were significant differences in growth (from pretest …

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The Effects Of Dual Enrollment On An Institution: Student Persistence And Degree Attainment At The Community College, Stacey S. Irwin Dec 2018

The Effects Of Dual Enrollment On An Institution: Student Persistence And Degree Attainment At The Community College, Stacey S. Irwin

Theses and Dissertations

The overall college enrollment rates for young adults have increased over the last several years. While this is promising, a notable amount of students do not attain a degree. This scenario can create major consequences for the United States as global competitiveness requires a workforce that possesses a postsecondary degree. Dual enrollment is a program that has been seen to answer the need for more postsecondary graduates. Despite the robust literature that suggests the positive effects for students who participate in dual enrollment, limited research exists on the effects of dual enrollment on the institution. Therefore, this study attempted to …

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Microbial Succession From A Controlled Death Event Following Simulated Mass Mortality, Lindsay K. Harrison Dec 2018

Microbial Succession From A Controlled Death Event Following Simulated Mass Mortality, Lindsay K. Harrison

Theses and Dissertations

An increasing trend in mass mortality events (MMEs) has been observed in recent years, leading to an increased study of these events and their causes. Still to be investigated are the immediate and long-term effects of these environmental disturbances. Microbial communities found on and within the carcass are a major contributor to decomposition. With an increased biomass from several carcasses, transfer of these microbes to secondary death events may be affected. For this project, several simulated MMEs were used in conjunction with a secondary death event to observe the effects of transfer between the microbial communities and changes in the …

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Morpho-Physiological And Genetic Characterizations Of Rice Genotypes For Abiotic Stresses, Salah Hameed Jumaa Dec 2018

Morpho-Physiological And Genetic Characterizations Of Rice Genotypes For Abiotic Stresses, Salah Hameed Jumaa

Theses and Dissertations

Holistic and growth stage-specific screening is needed for identifying tolerant genotypes and for formulating strategies to mitigate the negative effects of abiotic stresses on crops. The objectives of this study were to characterize the genetic variability of 100 rice lines for early-season vigor, growth and physiological plasticity, and drought and temperature tolerance. Five studies were conducted to accomplish these objectives. In study 1 and 2, 100 rice genotypes consisting of several cultivars and experimental breeding lines were characterized for early-season vigor using several shoot and root morphological, physiological, and yield related traits. In study 3, low- and high-temperature tolerance assessed …

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The Role Of Early Visual Cortex In Global Motion Processing, Marshall L. Green Dec 2018

The Role Of Early Visual Cortex In Global Motion Processing, Marshall L. Green

Theses and Dissertations

Both visual area V1 and the medial temporal (MT) region of the human brain play a role in motion perception. V1 is thought to process "local motion," such as the movement of a single bird flying across a relatively small part of space, while MT is thought to process "global motion," such as the movement of an entire flock of birds flying across the sky. However, recent studies using fMRI to measure human brain activity have identified signals in V1 that appear to be global motion signals, although it is unclear whether these are related to global motion processing or …

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Transcriptomic Analysis Of Early B-Cell Development In The Chicken Embryo, Nikhil Krishna Nuthalapati Dec 2018

Transcriptomic Analysis Of Early B-Cell Development In The Chicken Embryo, Nikhil Krishna Nuthalapati

Theses and Dissertations

The chicken bursa of Fabricius is a primary lymphoid tissue important for B-cell development. Our long-term goal is to understand the role of bursal microenvironment in an early B-cell differentiation event initiating repertoire development through immunoglobulin gene-conversion in the chick embryo. We hypothesize that early bursal B-cell differentiation is guided by signals through cytokine receptors. Our theory is based on previous evidence for expression of the receptor tyrosine kinase superfamily members and interleukin receptors in unseparated populations of bursal B-cells and bursal tissue. Knowledge of the expressed genes that are responsible for B-cell differentiation is a prerequisite for understanding the …

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Transferability Of Maxent And Expert Opinion Models For American Beaver, Isidro A. Barela Dec 2018

Transferability Of Maxent And Expert Opinion Models For American Beaver, Isidro A. Barela

Theses and Dissertations

Modeling habitat suitability is beneficial for management and conservation of a species. Although data-rich models are commonly used, opinion-based models may be a beneficial alternative to estimate suitable habitat locations. Despite the increasing use of habitat models, few studies have linked habitat model covariates (i.e., land cover, weather, and normalized difference vegetation indexes (NDVI)) to demographic parameters. This study evaluates model performance and transferability of maximum entropy (MaxEnt) and expert opinion models for predicting American beaver (Castor canadensis) distribution in the southeastern US. I also investigated the relationship of environmental and habitat model covariates to beaver survival. The model’s predictive …

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Understanding How Pin1-Substrate Interactions Modulate Affinity And Inter-Domain Dynamics, Hewa Pathiranalage Dinusha Sanjeewani Jinasena Dec 2018

Understanding How Pin1-Substrate Interactions Modulate Affinity And Inter-Domain Dynamics, Hewa Pathiranalage Dinusha Sanjeewani Jinasena

Theses and Dissertations

Pin1 is an essential peptidyl-prolyl isomerase (PPIase) that catalyzes cis-trans prolyl isomerization in proteins containing phosphorylated serine/threonine-proline motifs (pSer/Thr-Pro). It has an N-terminal binding domain (WW) and a C-terminal PPIase domain. Pin1 targets pSer/Thr-Pro motifs by its WW domain and catalyzes isomerization through its PPIase domain. This dissertation is focused on elucidating the interactions between Pin1/substrate, the inter-domain dynamics upon binding, and the catalytic activity of Pin1 upon binding different substrates. Specifically, we investigated the Pin1-Histone H1 interaction and designed a series of chimeric peptides based on the H1.4 sequence (KATGAApTPKKSAKW). NMR titrations were performed for each peptide using both …

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Using Agricultural Wastes And Additives To Improve Properties And Lower Manufacturing Costs Associated With Biomass Energy Pellets, Cody Blake Dec 2018

Using Agricultural Wastes And Additives To Improve Properties And Lower Manufacturing Costs Associated With Biomass Energy Pellets, Cody Blake

Theses and Dissertations

The objectives of this dissertation’s studies were to determine the effects of different additives on biomass wood pellets’ physical properties and the production energy required to produce each treatment. Chapter II was completed using a pneumatic pelletizer as a small scale test to determine effects of different additives. The pneumatic pelletizer was a good indicator of which additives can be successfully pelletized. The results of this chapter show that using bio-oil can significantly increase calorific value, without significantly decreasing durability and significantly increasing production energy required. Corn starch, in a 4% treatment, was shown to not hinder durability or calorific …

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Using Geospatial Techniques To Assess Responses Of Black Bear Populations To Anthropogenically Modified Landscapes: Conflict & Recolonization, Jamie Elizabeth Mcfadden Dec 2018

Using Geospatial Techniques To Assess Responses Of Black Bear Populations To Anthropogenically Modified Landscapes: Conflict & Recolonization, Jamie Elizabeth Mcfadden

Theses and Dissertations

The convergence of three young scientific disciplines (ecology, geospatial sciences, and remote sensing) has generated unique advancements in wildlife research by connecting ecological data with remote sensing data through the application of geospatial techniques. Ecological datasets may contain spatial and sampling biases. By using geospatial techniques, datasets may be useful in revealing landscape scale (e.g., statewide) trends for wildlife populations, such as population recovery and human-wildlife interactions. Specifically, black bear populations across North America vary greatly in their degree of distribution stability. The black bear population in Michigan may be considered stable or secure, whereas the population in Missouri is …

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Using The Unified Theory Of Acceptance And Use Technology To Determine Factors That Affect The Acceptance And Use Of Social Media To Advertise And Promote Agriproducts In Farmer' Communities In North Mississippi, Carlos Alberto Moreno-Ortiz Dec 2018

Using The Unified Theory Of Acceptance And Use Technology To Determine Factors That Affect The Acceptance And Use Of Social Media To Advertise And Promote Agriproducts In Farmer' Communities In North Mississippi, Carlos Alberto Moreno-Ortiz

Theses and Dissertations

The present empirical study examined factors that affect the acceptance and use of social media platforms by farmers and vendors in farmers’ communities in North Mississippi for marketing their small farm businesses. Based on the Unified Theory of Acceptance and Use of Technology (UTAUT), structural equations modeling was used to examine several relationships: (1) the influence of performance expectancy (PE) on behavioral intention (BI) to use social media; (2) the influence of effort expectancy (EE) on BI; (3) the influence of social influence (SI) on BI; (4) the influence of facilitating conditions (FC) on actual use (USE) of social media; …

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Who Does It Best? Towards Understanding Virtual Accountability Practices In Public, Nonprofit And Private Organizations, Asya Besova Cooley Dec 2018

Who Does It Best? Towards Understanding Virtual Accountability Practices In Public, Nonprofit And Private Organizations, Asya Besova Cooley

Theses and Dissertations

The primary purpose of this dissertation is to comparatively review virtual accountability practices in public, private and nonprofit organizations, using the hospital industry as a case of analysis. Through the quantitative assessment of organizational websites, this study provides empirical evidence that there are statistically significant differences in how organizations conduct their virtual accountability practices. Nonprofits are leading the way in their overall virtual accountability practices. They are more likely to score higher on engagement, performance and mission dimensions of virtual accountability practices. Private organizations have the lowest scores on every dimension, except for accessibility. Public organizations have the strongest scores …

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Refining Spawning Protocols For Crappie, Christian A. Shirley Dec 2018

Refining Spawning Protocols For Crappie, Christian A. Shirley

Theses and Dissertations

White Crappie (Pomoxis annularis) and Black Crappie (P. nigromaculatus) are popular North American gamefish; however, frequent fluctuations in year class strength present a management challenge for recreational fisheries. Intensive aquaculture production has the potential to address this challenge through controlled hatchery reproduction for supplemental stocking, but further study is needed to refine and optimize techniques. Therefore, this study evaluated the effects of hormone injection timing on latency period and spawning success, examined effective cryopreservation techniques for black-stripe Black Crappie sperm (a preferred hatchery phenotype), and compared simulated spring duration on out-of-season spawning success. Latency period for White Crappie did not …

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Detailed Beta-Decay Studies Of Neutron-Rich 74-77ga Isotopes, Umesh Silwal Dec 2018

Detailed Beta-Decay Studies Of Neutron-Rich 74-77ga Isotopes, Umesh Silwal

Theses and Dissertations

The National Nuclear Data Center (NNDC) contains a compilation of information on the beta decays of Gallium isotopes. In the mass range A = 74 to 77, the Germanium daughters lie close to or at the valley of stability leading us to believe the decays would have been well studied. However, closer inspection indicates significant conflict for placement of gamma rays and energy levels between different measurements, especially for upper-lying states. Detailed beta-decay studies for the 74-77Ga isotopes were performed using a high resolution four clover Hyper-Pure Germanium (HPGe) detector system with two beta scintillators in the Holifield Radioactive Ion …

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Determination Of Salient Design Elements Through Eye Movements, Aesthetics, And Usability, Bryan C. Asuncion Dec 2018

Determination Of Salient Design Elements Through Eye Movements, Aesthetics, And Usability, Bryan C. Asuncion

Theses and Dissertations

The goal of study 1 was to use a remote eye tracker to understand how eye movements change with 7 geometrically varied remote controls to determine design element saliency. 20 participants were used to measure the following eye metrics: number of fixations prior to first fixation of any AOI, time to first fixation of an AOI, number of fixations on an AOI, dwell time of the first fixation on an AOI, total dwell time of an AOI, and the percentage of time spent on an AOI. The results of the study showed that all participants spent between 75-85% of their …

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Developing A Short-Form Measure To Predict Illicit Use Of Prescription Stimulants, Joanna C. Hachtel Dec 2018

Developing A Short-Form Measure To Predict Illicit Use Of Prescription Stimulants, Joanna C. Hachtel

Theses and Dissertations

Research relating to illicit use of prescription stimulants (IUPS) has, for the most part, focused on describing behaviors of IUPS. However, there have been few attempts to measure IUPS in a consistent manner or determine how to best predict IUPS in an effective and concise manner. Data from Mississippi State University undergraduates (N = 703) were analyzed to create two shortorm measures to predict lifetime IUPS. The data-driven shortorm consisted of 15 items and 5 factors, and accurately classified 74.8% of participants as users versus non-users. The hand-picked shortorm consisted of 8 items and 5 factors, and accurately classified 84.6% …

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Making A Decision To Retreat, Relate, Or Retaliate: An Examination Of Theoretical Predictors Of Behavioral Responses To Bullying In A High School Setting, Megan Suzanne Stubbs-Richardson Dec 2018

Making A Decision To Retreat, Relate, Or Retaliate: An Examination Of Theoretical Predictors Of Behavioral Responses To Bullying In A High School Setting, Megan Suzanne Stubbs-Richardson

Theses and Dissertations

The purpose of this dissertation is to extend General Strain Theory (GST) to examine prosocial, asocial, and antisocial behavior in response to bullying. In GST, Agnew (1992; 2001; 2013) asserted that negative emotions can lead to criminal or aggressive coping but there are a number of factors that increase or decrease the propensity to respond aggressively (Agnew, 1992; Richman & Leary, 2009). In this dissertation, I examine whether and how rejection (operationalized as bullying victimization) is associated with aggressive responding as opposed to prosocial (e.g., befriending others) or asocial (e.g., avoiding people and social events) responding. This dissertation consists of …

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The Impact Of The Dual-Enrollment Modality On Subsequent Collegiate Performance, Daniel Archer Dec 2018

The Impact Of The Dual-Enrollment Modality On Subsequent Collegiate Performance, Daniel Archer

Electronic Theses and Dissertations

Dual-enrollment College Algebra is offered in three modalities: at the college, at the high school, and online. The purpose of this study was to examine if the dual-enrollment College Algebra modality impacts early collegiate performance. A program evaluation was conducted using a causal-comparative design to explore potential cause-and-effect relationships between the dual-enrollment College Algebra modalities and five outcomes. The population included Oklahoma State System of Higher Education students who completed dual-enrollment College Algebra and subsequently earned freshman College Algebra postrequisite math grades, freshman College Algebra postrequisite science grades, or college credit in the fall semester after high school graduation. One-way …

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