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Articles 451 - 480 of 17159
Full-Text Articles in Entire DC Network
The Menstrual Cycle And Relationships, Anna Stewart
The Menstrual Cycle And Relationships, Anna Stewart
Family Perspectives
No abstract provided.
Leveraging Reduced Order Models And High-Fidelity Simulations For Efficient Multifidelity Uncertainty Quantification Of Thermal Systems, Jakob G. Bates
Leveraging Reduced Order Models And High-Fidelity Simulations For Efficient Multifidelity Uncertainty Quantification Of Thermal Systems, Jakob G. Bates
Theses and Dissertations
Simulation-led design is becoming an important part of thermal systems design. Simulations of thermal systems continue to improve in their fidelity, but this comes with an increased computational cost. Additionally, uncertainty in simulation inputs, such as thermophysical properties, leads to uncertainty in simulation outputs. For simulations to be used rigorously for simulation-led design, this uncertainty must be quantified. Performing uncertainty quantification on thermal simulations is made difficult by their many uncertain parameters and high computational cost. Multifidelity uncertainty quantification is a set of methods that reduce the cost of uncertainty quantification by leveraging high-fidelity, high-cost simulations with low-fidelity, low-cost simulations. …
Diagnostic Accuracy Of Nonword Repetition Tasks For Dual Language Learners And Monolingual Students, Elizabeth Hunt
Diagnostic Accuracy Of Nonword Repetition Tasks For Dual Language Learners And Monolingual Students, Elizabeth Hunt
Theses and Dissertations
Assessments for diagnosing language disorders (LD) can be biased for dual language learners (DLLs). Nonword repetition (NWR) tasks show potential as a less-biased language assessment measure for DLLs. This study explored the diagnostic accuracy of NWR tasks for diagnosing LD. There were 291 participants included in this study in first through fifth grades. Thirty-nine of the participants had LD and 86 of the participants were DLLs. Sixteen of the participants were DLLs and had LD. Monolingual participants were administered an English NWR task, and DLLs were administered both English and Spanish NWR tasks. These tasks were scored by percent phonemes …
Prosodic Pitch And Intensity Patterns In People With Moderate Broca's Aphasia, Juliana Pickard
Prosodic Pitch And Intensity Patterns In People With Moderate Broca's Aphasia, Juliana Pickard
Theses and Dissertations
People with aphasia (PWA) experience deficits in utilizing prosody, which drastically impacts their communicative effectiveness. The lack of prosody in people with aphasia may alter their ability to nurture meaningful relationships, advance educational and work opportunities, and participate in community activities. This study acoustically evaluates the prosodic characteristics of speech produced by individuals with non-fluent aphasia to better understand how to accurately assess and more effectively treat communication difficulties in PWA. Recorded speech samples derived from a Cinderella story retell from 16 individuals with moderate Broca's aphasia and 16 age-matched controls were acoustically analyzed in this study. The recordings were …
Interpreting Identity: Seeing Cultural Identity As Fluid In Jhumpa Lahiri’S Interpreter Of Maladies, Caleb D'Evegnee
Interpreting Identity: Seeing Cultural Identity As Fluid In Jhumpa Lahiri’S Interpreter Of Maladies, Caleb D'Evegnee
Criterion: A Journal of Literary Criticism
No abstract provided.
Untethered Isoperimetric Robotic Truss For Lunar Applications, Mihai Stanciu, Spencer Stowell, Isaac Weaver, Adam Rose, Chris Paul, James Wade, Ashleigh Cerven, Annie O'Bryan, Brian Bodily, Logan Yang, Nathan Usevitch
Untethered Isoperimetric Robotic Truss For Lunar Applications, Mihai Stanciu, Spencer Stowell, Isaac Weaver, Adam Rose, Chris Paul, James Wade, Ashleigh Cerven, Annie O'Bryan, Brian Bodily, Logan Yang, Nathan Usevitch
Faculty Publications
We introduce a robotic system designed to function as a lightweight, modular, and reconfigurable structure on the Moon. This robust system consists of truss-like robotic triangles, each formed by a continuous inflated fabric tube routed through two robotic roller units and a connecting unit. When deflated, these triangles can be compacted to roughly the volume of the roller units, offering an advantageous stowed-to-deployed volume ratio of 1 to 6.24. Upon inflation, the roller units pinch the tubes, creating corners by reducing the bending stiffness of the tube. Once fully deployed, electric motors move the robotic roller units along the tube, …
Pausing Patterns Across Speech Tasks In Individuals Diagnosed With Broca's Aphasia, Kate Low
Pausing Patterns Across Speech Tasks In Individuals Diagnosed With Broca's Aphasia, Kate Low
Theses and Dissertations
The purpose of this study was to investigate whether individuals with moderate Broca's aphasia exhibit different pause duration and frequency patterns compared to individuals without neurological disorders, as well as to explore how speech task type influences pause patterns. A total of 16 participants (eight male and eight female) previously diagnosed with moderate Broca's aphasia and apraxia were included in this study, along with 16 age- and gender-matched control participants. Speech recordings from the 16 participants were sourced from the AphasiaBank database. Speech samples from four different task types (i.e., interview, personal narrative, picture description, and story retell) were analyzed …
Initial Scripts And Final Code Data For E2021-260 Study 1, Undergraduates' Access And Usability Of The Contentdm Interface And Irb2022-263 Study 2, Faculty Needs Assessment Of The Library Dam System, Lindsey Memory, Rebecca A. Wiederhold, Abby Beazer, Greg Seppi, Nicole Lewis, Elizabeth Smart, Brent Ellingson
Initial Scripts And Final Code Data For E2021-260 Study 1, Undergraduates' Access And Usability Of The Contentdm Interface And Irb2022-263 Study 2, Faculty Needs Assessment Of The Library Dam System, Lindsey Memory, Rebecca A. Wiederhold, Abby Beazer, Greg Seppi, Nicole Lewis, Elizabeth Smart, Brent Ellingson
ScholarsArchive Data
Included are the initial scripts and the final qualitative thematic codes (created using the grounded method) of two IRB studies completed by the BYU Library's Digital Collections Systems Management Committee. Study 1, "Undergraduates' Access and Usability of the CONTENTdm Interface" (BYU IRB E2021-260) administered a usability test and an oral survey/interview, resulting in two datasets: codes from video observational data of undergraduate subjects using the library's digital asset management system, CONTENTdm, to complete ten pre-set usability tasks, and also codes from open-ended interview questions about those undergraduate students' perceived effectiveness in the system, and their preferences in a library digital …
Improvement Of Hanford Waste Vitrification Algorithms With Machine Learning, Uncertainty Quantification, And Gradient-Based Optimization, Lagrande L. Gunnell
Improvement Of Hanford Waste Vitrification Algorithms With Machine Learning, Uncertainty Quantification, And Gradient-Based Optimization, Lagrande L. Gunnell
Theses and Dissertations
Over 200 million liters of nuclear waste is stored in tank farms in Hanford, Washington, USA. An ongoing effort to immobilize non-solid nuclear waste is through waste vitrification, where waste is mixed and melted with glass-forming chemicals (GFCs) to form a waste glass. Algorithms to determine the ideal mixing recipes are formalized as constrained optimization problems to maximize waste loading in the glass product, with constraints on several properties of the glass melt and final product. These properties are on the glass melt, such as viscosity, electrical conductivity, and corrosion rates, as well as the final glass product, such as …
Ai-Enhanced Flipped Classroom Approach For Chinese Vocabulary And Grammar Learning, Haotian Ye
Ai-Enhanced Flipped Classroom Approach For Chinese Vocabulary And Grammar Learning, Haotian Ye
Theses and Dissertations
This study examines the effectiveness of ChatGPT-4 in enhancing L2 Chinese learners' vocabulary and grammar acquisition within a flipped classroom setting, focusing on its impact on learning outcomes, student motivation, and associated challenges. Conducted over 10 weeks, the study involved 19 native English speakers enrolled in a third-year Chinese course at a U.S. university. The experimental group (n = 11) used ChatGPT to self-study six target words and five grammar structures before attending Tuesday and Thursday sessions, while the control group (n = 8) followed a textbook-based approach. Participants completed in-class vocabulary and grammar quizzes twice a week, three journal …
Insights Into Cortical Organization And Executive Dysfunction In Pediatric Traumatic Brain Injury, Madeleine Reading
Insights Into Cortical Organization And Executive Dysfunction In Pediatric Traumatic Brain Injury, Madeleine Reading
Theses and Dissertations
Cortical gyrification is essential for cognitive development, yet its relationship with executive functioning (EF) in pediatric traumatic brain injury (TBI) remains unclear. This study examined whether children with TBI exhibit atypical cortical folding in EF-related regions and whether these differences relate to EF performance. Using FreeSurfer 7.1.1, we analyzed local gyrification index (LGI) in 206 participants (ages 5-18) from 14 sites within the ENIGMA Pediatric msTBI Working Group. Vertex-wise regression revealed that longer time since injury (TSI) was associated with increased gyrification in the right fusiform gyrus and multiple left-hemisphere regions, suggesting region-specific neuroplasticity. Contrary to expectations, higher GCS scores …
Deportations And Latino Segregation: The Residential Impacts Of Interior Immigration Enforcement, Matthew Hall, Jacob S. Rugh, Hao Liang
Deportations And Latino Segregation: The Residential Impacts Of Interior Immigration Enforcement, Matthew Hall, Jacob S. Rugh, Hao Liang
Faculty Publications
The shift of immigration enforcement to local jurisdictions has intensified localized patterns of anti-immigrant sentiment, enabling the system of mass deportation to expand at an unprecedented scale. This study examines the effects of 287 (g) agreements, which empower local law enforcement to enforce immigration laws, on Latino residential segregation. Using a quasi-experimental design that compares counties implementing 287 (g) with those that applied but did not implement, we find that these policies significantly slowed declines in Hispanic-white segregation, particularly in early-adopting Southern counties where enforcement was most aggressive. We find no evidence that the program altered patterns of segregation for …
Fremont Human Remains In Sevier County, Alexis Maughan
Fremont Human Remains In Sevier County, Alexis Maughan
Theses and Dissertations
This study examines Fremont mortuary practices in Sevier County, Utah, through a systematic analysis of 50 individuals, recovered mainly from Late period sites. While Fremont burials are typically described as highly variable, the Sevier County sample reveals a striking pattern: approximately half of the individuals exhibit evidence of processing and were left scattered on structure floors rather than being intentionally buried. This pattern stands in contrast to the widely accepted description of Fremont burials as consisting mainly of individuals buried separately in expedient pits with minimal grave goods. The analysis draws on previously published reports, compiling the available data on …
The Effect Of Lexical Characteristics On Speech Pausing For People With Broca's Aphasia, Anna Kathryn Walker Smith
The Effect Of Lexical Characteristics On Speech Pausing For People With Broca's Aphasia, Anna Kathryn Walker Smith
Theses and Dissertations
This study examines the connection between speech pause patterns and the lexical characteristics of the words that follow. Speech samples of 16 people with moderate Broca's aphasia and 16 age-matched neurologically healthy controls were evaluated in terms of word length, word frequency in the English language, syntactic category, and articulatory complexity. In general, people with aphasia (PWA) produced pauses more frequently before monosyllabic, very high frequency words with lower articulatory complexity, most of which were content words. The length of these pauses did not significantly correlate with any of the lexical factors examined in this study. The control group had …
Relationship Between Speaking Proficiency And Cultural Identity Of Korean Heritage Language Speakers, Minha Lee
Relationship Between Speaking Proficiency And Cultural Identity Of Korean Heritage Language Speakers, Minha Lee
Theses and Dissertations
Heritage language speakers from immigrant families often navigate between two languages and cultures as they form their personal identities. In this process, some develop their identity through their personal choices and external pressures, while others remain in a state of identity confusion. Although many factors contribute to the formation of their identity, the field of language education has continued to focus on the relationship between language proficiency and identity, assuming language ability could be one of the key influences. This study investigated the relationship between Korean speaking proficiency and cultural identity among Korean heritage language speakers born in the United …
Bridging The Language Proficiency Gap: Seeking Strategies For High Language Proficiency, Maria Isabelle Lyon
Bridging The Language Proficiency Gap: Seeking Strategies For High Language Proficiency, Maria Isabelle Lyon
Theses and Dissertations
This study explores factors contributing to high proficiency in German speakers, focusing on university graduates who achieved Advanced High or Superior ratings on the ACTFL Oral Proficiency Interview (OPI) at the end of their university studies. The nine participants, all of whom had significant exposure to German during and/or before their undergraduate studies at Brigham Young University (BYU), shared insights into their language learning experiences. The study uses interviews and surveys to examine key characteristics, strategies, and experiences that influenced participant proficiency. The findings highlight motivation, consistency, and humility as key factors contributing to learners. Participants emphasize intrinsic motivation, consistent …
A Study Of The Parameters Involved In Nir Sintering Of Silver Microparticle-Based, Pad-Printed Features, Jonah Clement Brooks
A Study Of The Parameters Involved In Nir Sintering Of Silver Microparticle-Based, Pad-Printed Features, Jonah Clement Brooks
Theses and Dissertations
This study explores the effectiveness of pad printing and near-infrared (NIR) sintering for producing conductive silver microparticle traces. A new pad printer was set up, and silver inks with varying concentrations of silver particles (17.5 %v/v, 20 %v/v, and 25 %v/v) were manufactured, printed, and sintered. The study identified sintering time and silver concentration as the most influential parameters affecting resistivity, with the best result of 8.73 × 10⁻⁷ Ω·m achieved using 25 %v/v ink sintered for 3 seconds at full power. Although resistivity continued to decrease at this maximum sintering duration, further optimization of parameters, including NIR bulb distance …
Examining Shifts In Reader Identity Through Explicit Fluency Instruction, Mercedes Allen
Examining Shifts In Reader Identity Through Explicit Fluency Instruction, Mercedes Allen
Theses and Dissertations
Fluency-a reader's ability to read accurately, with correct expression, speed, and prosody-is a main component of the science of reading (Rasinski, 2016). Although the science of reading has been a significant topic surrounding the issue of improving literacy in schools, there is little focus on the teaching of fluency at the secondary level (Shanahan, 2021; Steinle, 2022; Wexler, 2008) and how fluency influences reader identity. This article seeks to explore this question through the lens of the dialogical self (Hermans, 2001). In this case study, three 11th grade students participated in a series of lessons targeting components of fluency-accuracy, speed, …
Small-Scale Production Of Bespoke Accelerated Aging Plutonium Alloy, K. S. Holliday, A. M. Parkes, Devin Rappleye, D. J. Roberts, K. J. Kondrat, S. A. Simpson, A. J. Swift, U. Mehta, R. M. Kissinger, D. L. Rosas, L. S. Ripplinger, E. R. Tardiff, S. L. Harris, S. Perkins, C. Hawkins, N. J. Gibbs, R. J. P. Driscoll, A. T. Sidambe, R. A. Cole, T. T. Roehling, J R. Jeffries
Small-Scale Production Of Bespoke Accelerated Aging Plutonium Alloy, K. S. Holliday, A. M. Parkes, Devin Rappleye, D. J. Roberts, K. J. Kondrat, S. A. Simpson, A. J. Swift, U. Mehta, R. M. Kissinger, D. L. Rosas, L. S. Ripplinger, E. R. Tardiff, S. L. Harris, S. Perkins, C. Hawkins, N. J. Gibbs, R. J. P. Driscoll, A. T. Sidambe, R. A. Cole, T. T. Roehling, J R. Jeffries
Faculty Publications
This study demonstrates the 100 g scale manufacture of a plutonium alloy that ages at an accelerated rate. The resulting alloy ages six times faster than typical weapons-grade plutonium due to the addition of 238Pu. As a major innovation, the process involved using a partial direct oxide reduction technique. This method was achieved by developing a new, complex geometry stirrer using additive manufacturing to reduce the 238Pu oxide and efficiently incorporate it into weapons-grade plutonium metal. The material was then purified by molten salt extraction and electrorefining before being alloyed with gallium. The alloy was then cold-rolled and …
The Effects Of Goal Setting On Sports Performance Of Competitive Athletes: A Meta-Analytic Review, Kelsi L. Crotts
The Effects Of Goal Setting On Sports Performance Of Competitive Athletes: A Meta-Analytic Review, Kelsi L. Crotts
Theses and Dissertations
Goal setting is widely used by athletes as a strategy to enhance sports performance. Despite its theoretical foundation in Goal Setting Theory (GST), empirical research has yielded mixed findings regarding its effectiveness in competitive athletic settings. Prior meta-analyses have included studies across various skill levels and motor tasks unrelated to sport, limiting their applicability to experienced athletes. The current meta-analytical review aimed to (1) evaluate the impact of goal setting on sports performance among competitive athletes, (2) examine the influence of goal characteristics such as difficulty, specificity, proximity, type, source, and feedback, and (3) identify methodological limitations in existing research …
Epic Fantasy As A Postsecular Genre: The Stormlight Archive's Approach To Religion And Belief, Liz Busby
Epic Fantasy As A Postsecular Genre: The Stormlight Archive's Approach To Religion And Belief, Liz Busby
Theses and Dissertations
Epic fantasy as a genre has often been neglected due to its perceived conservative roots that clash with critical reading practices. This paper proposes that a postsecular lens may be more suitable to the critical study of epic fantasy and examines perhaps the most popular contemporary epic fantasy, Brandon Sanderson's Stormlight Archive, through a postsecular lens, First, the paper examines how the Stormlight Archive combines the premodern, fantastical worldview with modern and post-modern concerns to reinvigorate its exploration of the religious "big questions" through a renewed focus on the spiritual nature of the individual. Next, it examines how Sanderson presents …
Assessing The Impact Of Internal Flow Dynamics On Detection Region Concentrations Of Low-Cost Optical Particle Counters, Livingstone Quarshie
Assessing The Impact Of Internal Flow Dynamics On Detection Region Concentrations Of Low-Cost Optical Particle Counters, Livingstone Quarshie
Theses and Dissertations
Particulate matter (PM) poses significant risks to human health and the environment, making accurate measurement essential for exposure assessment and regulatory decisions. While traditional reference methods provide reliable data, they are often bulky, expensive, and difficult to maintain. Optical Particle Counters (OPCs) offer a cost-effective alternative, commonly used in clean rooms, residential spaces, and personal exposure monitoring. These devices rely on light scattering to measure PM concentrations. However, low cost OPCs face challenges related to calibration and measurement accuracy, requiring careful performance evaluation. This study used computational fluid dynamics (CFD) tools, CONVERGE Studio and ANSYS Fluent, to simulate a simplified …
In-Situ Void Formation During Liquid Composite Molding For Preformed Warp, Weft, And Alternating Orientation Rtm Samples, Tanner Cal Garrett
In-Situ Void Formation During Liquid Composite Molding For Preformed Warp, Weft, And Alternating Orientation Rtm Samples, Tanner Cal Garrett
Theses and Dissertations
Carbon fiber reinforced parts are utilized by the transportation industry due to being strong yet lightweight. The highest quality parts are made using carbon fiber (CF) pre-impregnated with resin processed in an autoclave to reduce void content. The autoclave process is expensive and takes up a large amount of space, so liquid composite molding (LCM) is a less expensive alternative. The parts produced using LCM can be manufactured to rival the mechanical performance of parts made with pre-preg in an autoclave, but concerns remain over voids. Most research pertaining to void formation has been done ex-situ by either micro-CT or …
Investigation Of Temperature Control's Effects In Additive Friction Stir Deposition Of Al 7050-T7451, Jason Noah Glenn
Investigation Of Temperature Control's Effects In Additive Friction Stir Deposition Of Al 7050-T7451, Jason Noah Glenn
Theses and Dissertations
Additive Friction Stir Deposition (AFSD) is a friction stir based process that includes the addition of material extruding through a bore in the center of the rotating tool. The deformation of the material from the tool rotation and high pressures result in fully dense depositions printed at very high rates with forged like mechanical properties. While deposition properties of varying alloys have been increasingly published, little work has been done investigating control of the process and as with all additive processes, consistency and predictability are of significant concern before implementation can occur. One common control method implemented in Friction Stir …
"She Could Worship Now Even In The Desert": The Monastic Life As An Escape To Higher Consciousness In The Works Of Henry James, Tabetha A. Madsen
"She Could Worship Now Even In The Desert": The Monastic Life As An Escape To Higher Consciousness In The Works Of Henry James, Tabetha A. Madsen
Theses and Dissertations
Stephen Koch has argued that Henry James is a writer that is deeply concerned with consciousness (93). Many critics acknowledge James's attention to the metaphysical. What fewer critics have observed is that the study of the metaphysical was not simply an intellectual process for James. Instead, James's study of consciousness often reads like the private experiences of the mystic. Much of the mysticism in James's work comes from his frequent use of monastic images and values. James's use of the monastic image--characterized by the qualities of obedience, silence, celibacy, and escape--explores the limitations and possibilities of consciousness in a more …
A Unique Light: The Presence, Salience And Portrayal Of Unique Religious Values On College Football Television Broadcasts, Joseph Bradford Hovey
A Unique Light: The Presence, Salience And Portrayal Of Unique Religious Values On College Football Television Broadcasts, Joseph Bradford Hovey
Theses and Dissertations
A mixed-methods content analysis case study of BYU football broadcasts (2023-2024), guided by agenda setting and framing theories, was conducted to determine to what extent the unique Latter-day Saint religious values of BYU were present and salient, as well as how they were framed, on BYU football television broadcasts. Using the university's 2024 brand messaging guide as a standard for topics indicative of such religious values, the 25 game broadcasts were analyzed and coded for presence or absence of religious values along with sentiment valence in each case. Frequency tests determined that 56% of games over the two seasons included …
Isolation Structure Simulation And Measurement To Reduce Transmit-Receive Coupling In Compact X-Band Fmcw Radar, Bruce E. Averill
Isolation Structure Simulation And Measurement To Reduce Transmit-Receive Coupling In Compact X-Band Fmcw Radar, Bruce E. Averill
Theses and Dissertations
Transmit-receive isolation in a compact X-band FMCW radar antenna system is critical for system performance. A set of candidate isolation structures are explored. In the process, performance of a commercial FDTD EM simulation software package is evaluated for antenna array modelling. Noise parameters of receiver electronics on a prototype radar processing front-end are tested. Improvements to the BYU Microwave Lab RF anechoic chamber are also reported, with a focus on measurement repeatability and antenna pattern angular resolution.
Exploring Representations And Inductive Bias For Machine Learning Tasks In Knot Theory, Nathaniel Driggs
Exploring Representations And Inductive Bias For Machine Learning Tasks In Knot Theory, Nathaniel Driggs
Theses and Dissertations
Knot theory is a branch of mathematics that studies embeddings of the circle in $\mathbb{R}^3$ that are equivalent up to ambient isotopy. A link is a knot with one or more component. Knots and links have invariants, or functions from each knot to a set such as the integers or a family of polynomials. Predicting invariants can help us approximate them, understand them better, and find useful ways of representing knots and useful models for other machine learning tasks in knot theory. I perform many supervised learning experiments, predicting signature on a large, wide-ranging dataset using 5 different models and …
Testing The Feasibility, Acceptability, And Preliminary Impact Of A Brief Behavioral Sleep Intervention To Improve School-Aged Childhood Sleep Behaviors, Isabella Delores Wright
Testing The Feasibility, Acceptability, And Preliminary Impact Of A Brief Behavioral Sleep Intervention To Improve School-Aged Childhood Sleep Behaviors, Isabella Delores Wright
Theses and Dissertations
Objectives: Parent knowledge of what healthy sleep looks like in their children has scarcely been evaluated, and little is known as to whether improving child sleep through a brief behavioral intervention that emphasizes mastery, personalization, motivation, and modeling will enhance sleep outcomes in children. As a result, we designed this study with the following aims in mind: 1) determine existing parental knowledge of healthy child sleep practices of parents; 2) test the impact of a personalized, brief parental sleep intervention aimed at increasing parental self-efficacy and parent behaviors; and 3) determine preliminary feasibility, acceptability, and impact of this personalized intervention …
Eleanor Fortescue-Brickdale And The Best, The Worst, And The Betwixt: The Intertwined Women Of Arthurian Literature And Victorian Society, Hannah Johansson
Eleanor Fortescue-Brickdale And The Best, The Worst, And The Betwixt: The Intertwined Women Of Arthurian Literature And Victorian Society, Hannah Johansson
Theses and Dissertations
The late Victorian and early Edwardian artist Eleanor Fortescue-Brickdale’s illustrations and paintings have been largely marginalized in the larger world of Arthurian art and criticism. This thesis argues that her work, focused on the illustration Enid, Guinevere, and Vivien, is impactful in its exploration between Arthurian characters and Victorian women. Critiquing with a feminist ideology, Brickdale attempts to break down Victorian stereotypes on women by visually breaking down the socially congruent labels placed onto the women of Camelot. In doing so, she both critiques Victorian society and artistically argues for a much needed social reconstruction.