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2014

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Fair Or Foul? Major League Baseball's Use Of A Tortious Interference Lawsuit As A Means Of Investigation, Michael S. Beck Jan 2014

Fair Or Foul? Major League Baseball's Use Of A Tortious Interference Lawsuit As A Means Of Investigation, Michael S. Beck

Cardozo Arts & Entertainment Law Journal

No abstract provided.

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Depression And Alcohol Use Disorders As Gendered Phenotypes Of 5-Httlpr, Bryant Walker Hamby Jan 2014

Depression And Alcohol Use Disorders As Gendered Phenotypes Of 5-Httlpr, Bryant Walker Hamby

All ETDs from UAB

The serotonin transporter linked polymorphic region (5-HTTLPR) has been associated with both depression and alcohol use disorders in previous gene-environment interaction studies, but these associations have not been consistent. Previous research on mental health has posited that depression and alcohol use disorders are functionally equivalent manifestations of distress, with men displaying alcohol use disorders and women displaying depression in response to stress. This paper assesses whether the presence of the risk-conferring serotonin gene alleles increase an individual's chance of expressing distress as either depression or alcohol use disorders, depending on gender. The hypotheses that more symptoms of depression would be …

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Unraveling The Mechanisms Of Skeletal Muscle Hyperplasia: Juxtaposing Divergent Growth Paradigms, Jacob Michael Froehlich Jan 2014

Unraveling The Mechanisms Of Skeletal Muscle Hyperplasia: Juxtaposing Divergent Growth Paradigms, Jacob Michael Froehlich

All ETDs from UAB

During the course of vertebrate evolution, two major growth paradigms have appeared: determinate, one in which an animal's final size is largely governed by predisposed genetic potential; and indeterminate, a paradigm involving life-long, largely environmentally governed somatic growth. Of the tissues constituting an adult vertebrate, skeletal muscle comprises ≥60% of that organism's mass, making it an important factor in overall body growth. To better understand the process by which many teleost fishes grow throughout their natural lifespans, the clade Danioninae and the model rainbow trout (Oncorhynchus mykiss) were utilized in a comparative manner. Contrary to current hypotheses, fish with indeterminate …

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An Evolutionary Study Of Dynamic Cognitive Game Captchas: Automated Attacks And Defenses, Song Gao Jan 2014

An Evolutionary Study Of Dynamic Cognitive Game Captchas: Automated Attacks And Defenses, Song Gao

All ETDs from UAB

CAPTCHAs represent a primary defense mechanism against online attacks and resource abuse. However, existing CAPTCHA solutions (e.g., distorted static text-based CAPTCHAs) suffer from significant security problems. Recent research has demonstrated that many current forms of CAPTCHAs can be solved with a high accuracy using automated techniques. This vulnerability associated with traditional CAPTCHAs thus provides a sound motivation to explore CAPTCHA alternatives. In this dissertation, we study a broad class of game-based CAPTCHAs, called the Dynamic Cognitive Game (DCG) CAPTCHAs, which challenge the user to perform a game-like cognitive task interacting with a series of dynamic objects. Specifically, we focus on …

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Urbanization And Land-Use Change In Puerto Maldonado, Peru: Categorizing The Landscape Using High-Resolution Satellite Imagery For Potential Use In Public Health Research, Laura Brianna Gast Jan 2014

Urbanization And Land-Use Change In Puerto Maldonado, Peru: Categorizing The Landscape Using High-Resolution Satellite Imagery For Potential Use In Public Health Research, Laura Brianna Gast

All ETDs from UAB

Environmental change, especially rapid urbanization, has measurable effects on human health. Over 70 percent of the global population is expected to live in urban areas by 2025, and at least 1 in 3 of these individuals will live in extreme poverty. Living in a slum or shantytown exposes individuals to health and safety risks including inadequate sanitation, lack of access to clean water, air pollution, violence, over-crowding and risk of infectious disease. Remote sensing technologies are an effective tool for detection and prediction of areas with significant land use change, which enables identification of populations with the highest risk of …

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A Spatiotemporal Model For Repeated Imaging Data, Brandon George Jan 2014

A Spatiotemporal Model For Repeated Imaging Data, Brandon George

All ETDs from UAB

Longitudinal imaging studies have increased in popularity as clinical researchers seek to investigate how phenomena within the body change over time. Analysis of data from these studies is complicated by correlation between repeated measures over time and different locations in the body. To address this problem we propose the use of a linear model with a separable parametric correlation structure. This model considers spatial and temporal correlation independently and incorporates the correlation using parametric functions that have the potential to be much more efficient than an unstructured approach. Our model also has the ability to control for time- and space-varying …

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Mitochondrial Dysfunction In Response To Neurotoxins And The Role Of Mitophagy, Samantha Giordano Jan 2014

Mitochondrial Dysfunction In Response To Neurotoxins And The Role Of Mitophagy, Samantha Giordano

All ETDs from UAB

Parkinson's disease (PD) is the second most common neurodegenerative disorder. Two major factors in both familial and sporadic PD are mitochondrial dysfunction and insufficient autophagy. My thesis research focuses on the interplay between these activities in PD. To investigate the common and differential effects of PD-inducing neurotoxins on mitochondrial bioenergetics and their relationships to cell survival, we used an in vitro culture system, differentiated dopaminergic SH-SY5Y neuroblastoma cells. We found that the neurotoxins rotenone, 1-methyl-4- phenylyridinium (MPP+) and 6-hydroxydopamine (6-OHDA), decreased mitochondrial respiration and induced cell death in these cells. The extent and characteristics of mitochondrial dysfunction in response to …

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Construction Of 3d Cardiopulmonary Resuscitation Emergency Scenarios For First Responder Pre-Nursing Training On Stereoscopic Display Systems, Alanzo Deon Granville Jan 2014

Construction Of 3d Cardiopulmonary Resuscitation Emergency Scenarios For First Responder Pre-Nursing Training On Stereoscopic Display Systems, Alanzo Deon Granville

All ETDs from UAB

In today's society there is a need to have well prepared medical staff, especially in cases of cardiac arrest, and nurses are one of the first lines of defenses against cardiac arrest. They play a crucial role as first responders to administer cardiopulmonary resuscitation (CPR) to patients in need of resuscitation, but CPR history has demonstrated CPR as a difficult process to learn for both medical professionals and laypersons. There are consistent recurring changes in guidelines to improve CPR practice which may promote changes within CPR knowledge, and the administration of CPR may also differ in complexity depending on the …

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Relationships Among Heart Failure-Related Physical Symptoms, Social Support, Social Problem-Solving, Depressive Symptomatology, And Self-Care Behaviors In Individuals Living With Heart Failure, Lucinda Joy Graven Jan 2014

Relationships Among Heart Failure-Related Physical Symptoms, Social Support, Social Problem-Solving, Depressive Symptomatology, And Self-Care Behaviors In Individuals Living With Heart Failure, Lucinda Joy Graven

All ETDs from UAB

Introduction: Heart failure (HF) is a chronic condition that progressively worsens over time. The condition is more common in individuals over the age of 65 and commonly causes dyspnea, fatigue, orthopnea, nocturnal dyspnea, edema, and activity intolerance. Prior studies suggest a relationship between HF-related physical symptoms and depressive symptomatology in individuals living with HF. Depressive symptomatology in individuals with HF are linked with a higher mortality rate, decreased quality of life, decreased functional status, and disturbed sleep. Additionally, HF-related physical symptoms impact self-care in individuals living with HF. Previous studies have found that symptom severity and the associated decrease in …

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Development Of A Concept Exploration Based Teaching Methodology For Undergraduate Chemistry Education, Nicole D. Gray Jan 2014

Development Of A Concept Exploration Based Teaching Methodology For Undergraduate Chemistry Education, Nicole D. Gray

All ETDs from UAB

Science in general has traditionally been noted as a difficult subject because of its specialized language, mathematical and abstract concepts, and the amount of content to be learned in a semester. In particular, students are believed to base their attitudes towards science-related disciplines on their perceived abilities in understanding or succeeding in a course. Other factors may also contribute to this lack of interest, such as students' metacognitive skills. Concept mapping and computer-aided tools may be used to assist students in building hierarchical knowledge bases that allow them to visually represent connections between concepts. Therefore, the purpose of this study …

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Risk Assessment And Staging Of Cardiometabolic Diseases, Fangjian Guo Jan 2014

Risk Assessment And Staging Of Cardiometabolic Diseases, Fangjian Guo

All ETDs from UAB

Obesity is associated with elevated risk for morbidity and mortality and has become an epidemic both in the United States and around the world. Insulin resistance is essentially involved in the pathogenic process of cardiometabolic diseases in obese people, which involves defects in glucose production by the liver and insulin-stimulated glucose uptake and utilization by peripheral tissues. Insulin resistance appears at an early stage of life and is the first step in the development of cardiometabolic diseases. Long-term insulin resistance will induce metabolic syndrome and prediabetes and eventually will cause type 2 diabetes and cardiovascular diseases. Obesity may exacerbate insulin …

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Imaging Biomarkers For Prediction Of Treatment Response In Schizophrenia, Jennifer Ann Hadley Jan 2014

Imaging Biomarkers For Prediction Of Treatment Response In Schizophrenia, Jennifer Ann Hadley

All ETDs from UAB

Schizophrenia affects approximately 1% of the population and is one of the top five causes of disability worldwide. Patient response to any particular drug is variable and currently unpredictable. Our overall goal is to identify imaging biomarkers that will distinguish patients with schizophrenia who will respond to an antipsychotic drug from those who will not. When considering potential biomarkers, it is important to note that schizophrenia is known to involve altered neuronal connections, thought to reflect pathologically relevant changes associated with the disease. We propose to utilize functional connectivity as a biomarker for treatment response to antipsychotic drugs in schizophrenia. …

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Contribution Of Kv4.2 To Neuronal Hyperexcitability In A Mouse Model Of Alzheimer's Disease, Alicia Marie Hall Jan 2014

Contribution Of Kv4.2 To Neuronal Hyperexcitability In A Mouse Model Of Alzheimer's Disease, Alicia Marie Hall

All ETDs from UAB

may be advantageous for increasing seasonal and yearly variability in sex ratios.

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Clinical Evaluation Of Non-Carious Cervical Lesions- A Five Year Prospective Evaluation, Kanchan Sawlani Jan 2014

Clinical Evaluation Of Non-Carious Cervical Lesions- A Five Year Prospective Evaluation, Kanchan Sawlani

All ETDs from UAB

Non-carious cervical lesions (NCCLs) have a non-bacterial origin and produce a loss of tooth structure at the cemento-enamel junction. A review of the literature reveals that these lesions may have a multifactorial etiology (chemical, abrasion, abfraction). The role of heavy biting forces in the pathogenesis of NCCLs is yet to be firmly established. Treatment and preventive measures for NCCLs can be improved if the etiology can be clearly identified and treated.Objective: This prospective clinical trial measured the volume loss (increase in size) of NCCLs and the occlusal biting forces applied to these teeth; diet and tooth brushing analysis, followed by …

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Ecology And Physiology Of Antarctic Macrophytes Under The Influence Of Abiotic And Biotic Stressors., Kathryn M. Schoenrock Jan 2014

Ecology And Physiology Of Antarctic Macrophytes Under The Influence Of Abiotic And Biotic Stressors., Kathryn M. Schoenrock

All ETDs from UAB

The physiology of many species of Antarctic marine algae was evaluated under a variety of biotic and abiotic factors found or predicted for the western Antarctic Peninsula. The potential biological stressors, filamentous algal endophytes, had few effects on their macrophyte host's physiology which may be the cause for their persistence in this marine community. Adversely impacted hosts include Pachymenia sp. and Iridaea cordata. In areas of high endophyte infection Pachymenia sp. was significantly less resistant to forces that could penetrate their thalli. Maximum quantum yield near endophyte infection was significantly lower in I. cordata. Endophyte abundance is significantly lower in …

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The Role Of The Planar Cell Polarity Pathway In The Second Heart Field During Outflow Tract Morphogenesis, Tanvi Sinha Jan 2014

The Role Of The Planar Cell Polarity Pathway In The Second Heart Field During Outflow Tract Morphogenesis, Tanvi Sinha

All ETDs from UAB

Outflow Tract (OFT) malformations underlie a majority of congenital heart defects (CHD) in humans and are a leading cause of childhood mortality. The OFT, which gives rise to the aorta and pulmonary artery of the heart, relies on the contribution of the Second Heart Field (SHF) progenitors in the pharyngeal and the splanchnic mesoderm, outside of the initial heart. OFT morphogenesis requires highly regulated SHF development involving the proliferation, differentiation and deployment of the SHF progenitors to the heart. Extensive studies elegantly demonstrate how transcriptional networks integrating signaling input from multiple pathways finely balance the proliferation and differentiation of SHF …

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Cultural Factors Affecting The Development Of An Evidence-Based Information Service In A Third Sector Provider Of Complementary Cancer Care, Matthew Dunstan Breckons Jan 2014

Cultural Factors Affecting The Development Of An Evidence-Based Information Service In A Third Sector Provider Of Complementary Cancer Care, Matthew Dunstan Breckons

Other Faculty of Health Theses

Abstract Cultural factors affecting the development of an evidence-based information service in a third sector provider of complementary cancer care Matthew Breckons Introduction Many people with cancer access complementary and alternative medicine (CAM) and a need for high quality information was emphasised in reports by the House of Lords and the National Institute for Health and Clinical Excellence. Organisational culture, incorporating people’s underlying assumptions, values and actions, has been highlighted as an important factor when attempting to introduce evidence-based practices. Opinion is divided over the relevance of evidence to CAM practice, although the influence that this has on the cultural …

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Energetic Demands Of Immature Sea Otters From Birth To Weaning: Implications For Maternal Costs, Reproductive Behavior And Population-Level Trends, Nicole Thometz, M. T. Tinker, M. M. Staedler, K. A. Mayer, T. M. Williams Jan 2014

Energetic Demands Of Immature Sea Otters From Birth To Weaning: Implications For Maternal Costs, Reproductive Behavior And Population-Level Trends, Nicole Thometz, M. T. Tinker, M. M. Staedler, K. A. Mayer, T. M. Williams

Biology Faculty Publications

Sea otters (Enhydra lutris) have the highest mass-specific metabolic rate of any marine mammal, which is superimposed on the inherently high costs of reproduction and lactation in adult females. These combined energetic demands have been implicated in the poor body condition and increased mortality of female sea otters nearing the end of lactation along the central California coast. However, the cost of lactation is unknown and currently cannot be directly measured for this marine species in the wild. Here, we quantified the energetic demands of immature sea otters across five developmental stages as a means of assessing the …

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Theophilus Of Alexandria And The Episcopal Ordination Of Synesius Of Cyrene, Kevin Wagner Jan 2014

Theophilus Of Alexandria And The Episcopal Ordination Of Synesius Of Cyrene, Kevin Wagner

Theology Papers and Journal Articles

Extant works show that Theophilus was fiercely opposed to the Origenism of the Tall Brothers and their fellow monks. These same works also demonstrate that he was a competent and orthodox theologian. In peculiar contrast to the written proof of Theophilus’ anti-Origenism, Theophilus ordained Synesius of Cyrene who had openly declared heterodox views. Norman Russell, in his work Theophilus of Alexandria, declares that Theophilus was willing to ordain Synesius and appoint him as bishop of the Pentapolis so long as Synesius kept these heretical opinions private. Given the unusual nature of his ordination, Synesius’ relationship with Theophilus thus offers a …

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A Professional Learning Community Activity For Science Teachers: How To Incorporate Discourse-Rich Instructional Strategies Into Science Lessons, Elizabeth Lewis, Dale Baker, Nievita Bueno Watts, Michael Lang Jan 2014

A Professional Learning Community Activity For Science Teachers: How To Incorporate Discourse-Rich Instructional Strategies Into Science Lessons, Elizabeth Lewis, Dale Baker, Nievita Bueno Watts, Michael Lang

Department of Teaching, Learning, and Teacher Education: Faculty Publications

In this article we describe current educational research underlying a comprehensive model for building a scientific classroom discourse community. We offer a professional development activity for a school-based professional learning community, providing specific science instructional strategies within this interactive teaching model. This design activity provides a quick and practical means of transforming science lessons to be more engaging for students. Through this activity teachers can redesign any science lesson by focusing on each of the five core components of a scientific classroom discourse community: (a) scientific inquiry, (b) oral discourse, (c) written discourse, (d) academic language development, and (e) learning …

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Spoken Spanish Language Development At The High School Level: A Mixed-Methods Study, Aleidine Kramer Moeller, Janine Theiler Jan 2014

Spoken Spanish Language Development At The High School Level: A Mixed-Methods Study, Aleidine Kramer Moeller, Janine Theiler

Department of Teaching, Learning, and Teacher Education: Faculty Publications

Communicative approaches to teaching language have emphasized the centrality of oral proficiency in the language acquisition process, but research investigating oral proficiency has been surprisingly limited, yielding an incomplete understanding of spoken language development. This study investigated the development of spoken language at the high school level over five consecutive years, involving more than 1,500 students representing 23 school districts. Quantitative Standards-Based Measure of Proficiency speaking scores and student-produced qualitative spoken samples (n > 6,000 samples) contributed to an understanding of the development of spoken language. Hierarchical linear modeling (HLM) revealed a consistent growth trajectory of spoken language development, and results …

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The Mathematical Nature Of Reasoning-And-Proving Opportunities In Geometry Textbooks, Samuel Otten, Nicholas J. Gilbertson, Lorraine Males, D. Lee Clark Jan 2014

The Mathematical Nature Of Reasoning-And-Proving Opportunities In Geometry Textbooks, Samuel Otten, Nicholas J. Gilbertson, Lorraine Males, D. Lee Clark

Department of Teaching, Learning, and Teacher Education: Faculty Publications

International calls have been made for reasoning-and-proving to permeate school mathematics. It is important that efforts to heed this call are grounded in an understanding of the opportunities to reason- and-prove that already exist, especially in secondary-level geometry where reasoning-and-proving opportunities are prevalent but not thoroughly studied. This analysis of six secondary-level geometry textbooks, like studies of other textbooks, characterizes the justifications given in the exposition and the reasoning-and-proving activities expected of students in the exercises. Furthermore, this study considers whether the mathematical statements included in the reasoning-and-proving opportunities are general or particular in nature. Findings include the fact that …

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A Study On The Elementary School Teachers’ Awareness Of Students’ Alternative Conceptions About Change Of States And Dissolution, Chanho Yang, Taehee Noh, Lawrence C. Scharmann, Sukjin Kang Jan 2014

A Study On The Elementary School Teachers’ Awareness Of Students’ Alternative Conceptions About Change Of States And Dissolution, Chanho Yang, Taehee Noh, Lawrence C. Scharmann, Sukjin Kang

Department of Teaching, Learning, and Teacher Education: Faculty Publications

Knowledge about students’ conceptions is one of the requisite components of pedagogical content knowledge. A keen awareness of students’ alternative conceptions provides teachers with information about prospective difficulties students may incur as they make attempts to learn more accurate scientific representations of critical concepts. In this study, we investigated elementary school teachers’ understanding of their students’ alternative conceptions about change of states and dissolution. The subjects were 152 elementary school teachers and 529 sixth graders in Korea. A conceptions test and the test of the understanding about students’ conceptions were administered in order to examine students’ alternative conceptions and the …

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Equitable Written Assessments For English Language Learners: How Scaffolding Helps, Marcelle A. Siegel, Deepika Menon, Somnath Sinha, Nattida Promyod, Cathy Wissehr, Kristy L. Halvorson Jan 2014

Equitable Written Assessments For English Language Learners: How Scaffolding Helps, Marcelle A. Siegel, Deepika Menon, Somnath Sinha, Nattida Promyod, Cathy Wissehr, Kristy L. Halvorson

Department of Teaching, Learning, and Teacher Education: Faculty Publications

This study investigated the effects of the use of scaffolds in written classroom assessments through the voices of both native English speakers and English language learners from two middle schools. Students responded to assessment tasks in writing, by speaking aloud using think aloud protocols, and by reflecting in a post-assessment interview. The classroom assessment tasks were designed to engage students in scientific sense making and multifaceted language use, as recommended by the Next Generation Science Standards. Data analyses showed that both groups benefited from the use of scaffolds. The findings revealed specific ways that modifications were supportive in helping students …

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(Dis)Functions: Marxist Theories Of Architecture And The Avant-Garde, Michael Chapman Jan 2014

(Dis)Functions: Marxist Theories Of Architecture And The Avant-Garde, Michael Chapman

Contemporary Aesthetics (Journal Archive)

This paper investigates the relationship between architecture and theories of the avant-garde in the critical projects of the 1970s, with a focus on the theories of Peter Bürger and Manfredo Tafuri. Both Tafuri and Bürger were writing from within the context of a radicalized Marxism and were fueled by an intellectual pessimism towards the totalizing systems of cultural production that questioned the role of resistance in aesthetics and the inability of the historical avant-gardes to engage within the political and economic fields of contemporary society. While there is a common ancestry to these two approaches, and mutual acceptance of the …

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Effects Of Retirement And Lifetime Earnings Profile On Health Investment, Hernán Bejarano, Hillard Kaplan, Stephen Rassenti Jan 2014

Effects Of Retirement And Lifetime Earnings Profile On Health Investment, Hernán Bejarano, Hillard Kaplan, Stephen Rassenti

ESI Working Papers

We report the results of experiments where in each period of her lifetime the subject must choose how to allocate real earned income between health investment and life enjoyment in each period of a nine-period life in order to maximize aggregate life enjoyment. The key dynamic optimization challenge of the experiment to subjects derives from the fact that investments in health affect future income, but detract from current consumption. Our experimental results show that subjects were successful at reproducing the qualitative predictions of the theoretical model, investing more in health in the absence of retirement and with increasing income profiles. …

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Sexism, Statements, And Audits, Eric Schniter, Timothy W. Shields Jan 2014

Sexism, Statements, And Audits, Eric Schniter, Timothy W. Shields

ESI Working Papers

Gender stereotypes and gender-discriminant behaviors have been shown to have strong and undesirable organizational, managerial, and economic effects. We examine the relationship between sexism and accounting practices, and the effect of contextual feedback using laboratory experiments. Sexist stereotypes and contextual feedback may affect the likelihood of financial misstatements and audits when auditors and issuers are of known gender. To investigate these aspects of sexism at zero acquaintance and after contextual feedback, we presented males and females with incentivized belief elicitation tasks about anticipated interaction behaviors and then a series of strategic-communication game decisions in same, other, and unknown gender interactions. …

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Overbidding And Overspreading In Rent-Seeking Experiments: Cost Structure And Prize Allocation Rules, Subhashish M. Chowdhury, Roman M. Sheremeta, Theodore L. Turocy Jan 2014

Overbidding And Overspreading In Rent-Seeking Experiments: Cost Structure And Prize Allocation Rules, Subhashish M. Chowdhury, Roman M. Sheremeta, Theodore L. Turocy

ESI Working Papers

We study experimentally the effects of cost structure and prize allocation rules on the performance of rent-seeking contests. Most previous studies use a lottery prize rule and linear cost, and find both overbidding relative to the Nash equilibrium prediction and significant variation of efforts, which we term ‘overspreading.’ We investigate the effects of allocating the prize by a lottery versus sharing it proportionally, and of convex versus linear costs of effort, while holding fixed the Nash equilibrium prediction for effort. We find the share rule results in average effort closer to the Nash prediction, and lower variation of effort. Combining …

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Accounting Standards And Financial Market Stability: An Experimental Examination, Shengle Lin, Glenn Pfeiffer, David Porter Jan 2014

Accounting Standards And Financial Market Stability: An Experimental Examination, Shengle Lin, Glenn Pfeiffer, David Porter

ESI Working Papers

We examine the effect on asset mispricing of different accounting methods in an experimental asset market characterized by bubbles and crashes. In particular, we study three alternative asset value reporting treatments: (1) Fair Value (also known as Mark-to-Market – M2M), (2) Historical Cost (HC) and (3) Marked to Fundamental Value (M2F). In addition, each of these treatments is replicated in two different financial leverage conditions. In the first condition (No Loan) traders must purchase assets from their available cash balances without the option of borrowing. In the second condition, (Loan), traders are given the option of taking out loans based …

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Why Can’T We Be Friends? Entitlements And The Costs Of Conflict, Erik O. Kimbrough, Roman M. Sheremeta Jan 2014

Why Can’T We Be Friends? Entitlements And The Costs Of Conflict, Erik O. Kimbrough, Roman M. Sheremeta

ESI Working Papers

We design an experiment to explore the impact of earned entitlements on the frequency and intensity of conflicts in a two-stage conflict game where players may attempt to use non-binding side-payments to avoid conflict. In this game, Proposers make offers and Responders decide simultaneously whether to accept the offers and whether to engage in a conflict. A simple theoretical analysis suggests that Proposers should never offer side-payments because Responders should always accept them and then still choose to enter conflict; however, our experiment reveals that some individuals use this non-binding mechanism to avoid conflict. Moreover, when subjects earn their roles …

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