Digital Commons Network^™

Forced (2 + 1)-Dimensional Discrete Three-Wave Equation, Junyi Zhu, Sishou Zhou, Zhijun Qiao

School of Mathematical & Statistical Sciences Faculty Publications

We generalize the ∂-dressing method to investigate a (2 + 1)-dimensional lattice, which can be regarded as a forced (2 + 1)-dimensional discrete three-wave equation. The soliton solutions to the (2 + 1)-dimensional lattice are given through constructing different symmetry conditions. The asymptotic analysis of one-soliton solution is discussed. For the soliton solution, the forces are zero.

Decomposition Of 2-Soliton Solutions For The Good Boussinesq Equations, Vesselin Vatchev

School of Mathematical & Statistical Sciences Faculty Publications

We consider decompositions of two-soliton solutions for the good Boussinesq equation obtained by the Hirota method and the Wronskian technique. The explicit forms of the components are used to study the dynamics of 2-soliton solutions. An interpretation in the context of eigenvalue problems arising from KdV type equations and transport equations is considered. Numerical examples are included.

Professional Development For Mathematics Teacher Education Faculty: Need And Design, Billy Jackson, Shandy Hauk, Jenq Jong Tsay, Alma Ramirez

School of Mathematical & Statistical Sciences Faculty Publications

The purpose of this report is to share a conceptual model useful in the design of professional learning about teaching for university mathematics faculty. The model is illustrated by examples from a particular design effort: the development of an online shortcourse for faculty new to teaching mathematics courses for prospective primary school teachers. How novice mathematics teacher educators grow as instructors is an emerging area of research and development in the United States. At the same time, it is well established that effective instructional design of any course, including a course for faculty, requires breadth first: understanding and anticipating the …

Flows Of Co-Closed G_{2}-Structures, Sergey Grigorian

School of Mathematical & Statistical Sciences Faculty Publications

We survey recent progress in the study of G_{2}-structure Laplacian coflows, that is, heat flows of co-closed G_{2}-structures. We introduce the properties of the original Laplacian coflow of G_{2}-structures as well as the modified coflow, reviewing short-time existence and uniqueness results for the modified coflow and well as recent Shi-type estimates that apply to a more general class of G_{2}-structure flows.

Bayesian Modelling Of Nonlinear Poisson Regression With Artificial Neural Networks, Hansapani Rodrigo, Chris P. Tsokos

School of Mathematical & Statistical Sciences Faculty Publications

Modelling and prediction of count and rate responses have substantial usage in many fields, including health, finance, social, etc. Conventionally, linear Poisson regression models have been widely used to model these responses. However, the linearity assumption of the systematic component of linear Poisson regression models restricts their capability of handling complex data patterns. In this regard, it is important to develop nonlinear Poisson regression models to capture the inherent variability within the count data. In this study, we introduce a probabilistically driven nonlinear Poisson regression model with Bayesian artificial neural networks (ANN) to model count and rate data. This new …

Words Have A Weight: Language As A Source Of Inner Grounding And Flexibility In Abstract Concepts, Guy Dove, Laura Barca, Luca Tummolini, Anna M. Borghi

Faculty and Staff Scholarship

The role played by language in our cognitive lives is a topic at the centre of contemporary debates in cognitive (neuro)science. In this paper we illustrate and compare two theories that offer embodied explanations of this role: the WAT (Words As social Tools) and the LENS (Language is an Embodied Neuroenhancement and Scaffold) theories. WAT and LENS differ from other current proposals because they connect the impact of the neurologically realized language system on our cognition to the ways in which language shapes our interaction with the physical and social environment. Examining these theories together, their tenets and supporting evidence, …

Absurdity In The Statehouse: Burlesque Legislation And The Politics Of Rejection, Calvin Coker

Faculty and Staff Scholarship

This manuscript analyzes the public debate over legislation designed to mock and reject regulations of abortion in the United States. The bills, such as one in Texas requiring men to remain abstinent and avoid seminal discharge outside of narrow circumstances, are intentionally unworkable to critique Targeted Regulation of Abortion Provider (TRAP) laws, and laws regulating access to abortion in the US. I argue the bills are a form of Burkean burlesque, a novel strategy of humor and biting critique in the context of the US abortion debate. As that debate is characterized primarily by Burke’s (1984) tragic frame, with a …

Results Of A Second Season Of Paleolithic Survey In The Agig Area: The Red Sea Region Of The Sudan, Amanuel Beyin, Abubakr Abdelrahman Adam, Ahmed Alhaj O. Balela, Boshra Abdella Adem

Faculty and Staff Scholarship

One of the contentious issues in paleoanthropology today concerns the geographic route/routes through which hominins (early humans) left Africa. The Nile corridor and the Strait of Bab al-Mandab (the southern Red Sea) are commonly cited as the likely routes by which hominins dispersed out of East Africa (Van Peer 1998; Derricourt 2005; Beyin 2006). However, the extent to which hominin movements remained confned to these regions is unclear. The western periphery of the Red Sea (WPRS) occupies a critical geographic location to be considered as an ideal region to assess the role of coastal habitats in hominin survival, and the …

Effect Of Hydraulic Resistivity On A Weakly Nonlinear Thermal Flow In A Porous Layer, Dambaru Bhatta, Daniel N. Riahi

School of Mathematical & Statistical Sciences Faculty Publications

Heat and mass transfer through porous media has been a topic of research interest because of its importance in various applications. The flow system in porous media is modelled by a set of partial differential equations. The momentum equation which is derived from Darcy’s law contains a resistivity parameter. We investigate the effect of hydraulic resistivity on a weakly nonlinear thermal flow in a horizontal porous layer. The present study is a realistic study of nonlinear convection flow with variable resistivity whose rate of variation is arbitrary in general. This is a first step for considering more general problems in …

Review Of When Novels Were Books. By Jordan Alexander Stein., Mark A. Mattes

Faculty and Staff Scholarship

But novels ARE books, you might be thinking. Jordan Stein points out that this is true, but not in the way that many of us have thought to be the case. Twentieth- and twenty-first century literary history, Stein argues, has too often failed to deliver a programmatic discussion of the media history of genre. Attention to changes and continuities in the early Anglophone novel’s artifactual status within an evolving, transatlantic media ecology, supplements, and in some cases rethinks, critical understandings of the development of novelistic form. Stein’s method is axiomatic for those working at the intersection of form and format: …

Race, American Enlightenment, And The End Times, Mark A. Mattes

Faculty and Staff Scholarship

This chapter examines eighteenth- and early nineteenth-century visions of apocalypse regarding the future of black lives in the American body politic. It begins with readings of Jefferson’s fear of a black planet in Notes on the State of Virginia and Crèvecoeur’s depictions of racial terror in Letters from an American Farmer. The chapter then investigates the writing of an African American herald of the end times, Christopher MacPherson. The chapter reads the apocalyptic jeremiad of MacPherson’s pamphlet, Christ’s Millennium (1811), as a reparative response to the suppression of black voices and the annihilation of black lives.

Sex And Age Differences In Prevalence And Risk Factors For Prediabetes In Mexican-Americans, Kristina Vatcheva, Belinda M. Reininger, Susan P. Fisher-Hoch, Joseph B. Mccormick

School of Mathematical & Statistical Sciences Faculty Publications

AIMS:

Over 1/3 of Americans have prediabetes, while 9.4% have type 2 diabetes. The aim of our study was to estimate the prevalence of prediabetes in Mexican Americans, with known 28.2% prevalence of type 2 diabetes, by age and sex and to identify critical socio-demographic and clinical factors associated with prediabetes.

METHODS:

Data were collected between 2004 and 2017 from the Cameron County Hispanic Cohort in Texas. Weighted crude and sex- and age- stratified prevalences were calculated. Survey weighted logistic regression analyses were conducted to identify risk factors for prediabetes.

RESULTS:

The prevalence of prediabetes (32%) was slightly higher than …

Screening Potential Citrus Rootstocks For Phytophthora Nicotianae Tolerance, Madhurababu Kunta, Sandy Chavez, Zenaida Viloria, Hilda S. Del Rio, Madhavi Devanaboina, George Yanev, Jong-Won Park, Eliezer S. Louzada

School of Mathematical & Statistical Sciences Faculty Publications

Seeds from four citrus rootstocks including sour orange, Bitters-C22 citrandarin, Sarawak pummelo 3 Rio Red grapefruit, and Sarawak pummelo 3Bower mandarin were exposed to high inoculum levels of Phytophthora nicotianae to screen for tolerance. Inoculation of pregerminated seeds (PGIS) and non-PGIS was carried out. The average P. nicotianae propagule counts from the soil samples where these seedlings were raised ranged from 424 to 1361 colony forming units/cm3. The proportion of live to dead plants was recorded at 11months postinoculation, which showed that Sarawak3Bower performed significantly better than other rootstocks. Evaluation of the rootstocks 18 months postinoculation resulted in only one …

Finite Lifespan Of Solutions Of The Semilinear Wave Equation In The Einstein–De Sitter Spacetime, Anahit Galstian, Karen Yagdjian

School of Mathematical & Statistical Sciences Faculty Publications

We examine the solutions of the semilinear wave equation, and, in particular, of the φq model of quantum field theory in the curved space-time. More exactly, for 1 < q < 4 we prove that the solution of the massless self-interacting scalar field equation in the Einstein-de Sitter universe has finite lifespan.

The Quantization Of The Standard Triadic Cantor Distribution, Mrinal Kanti Roychowdhury

School of Mathematical & Statistical Sciences Faculty Publications

The quantization scheme in probability theory deals with finding a best approximation of a given probability distribution by a probability distribution that is supported on finitely many points. For a given k ≥ 2, let {Sj : 1 ≤ j ≤ k} be a set of k contractive similarity mappings such that Sj(x) = 1 2k−1x + 2(j−1) 2k−1 for all x ∈ R, and let P = 1 k Pk j=1 P ◦ S−1 j . Then, P is a unique Borel probability measure on R such that P has support the Cantor set generated by the similarity mappings …

On The Voronoi Conjecture For Combinatorially Voronoi Parallelohedra In Dimension 5, Mathieu Dutour Sikiric, Alexey Garber, Alexander Magazinov

School of Mathematical & Statistical Sciences Faculty Publications

In a recent paper, Garber, Gavrilyuk, and Magazinov [Discrete Comput. Geom., 53 (2015), pp. 245--260] proposed a sufficient combinatorial condition for a parallelohedron to be affinely Voronoi. We show that this condition holds for all 5-dimensional Voronoi parallelohedra. Consequently, the Voronoi conjecture in $\mathbb{R}^5$ holds if and only if every 5-dimensional parallelohedron is combinatorially Voronoi. Here, by saying that a parallelohedron $P$ is combinatorially Voronoi, we mean that $P$ is combinatorially equivalent to a Dirichlet--Voronoi polytope for some lattice $\Lambda$, and this combinatorial equivalence is naturally translated into equivalence of the tiling by copies of $P$ with …

The Quartz Of Arkansas: Geology, History And Legend, Thomas R. Paradise

Geosciences Faculty Publications and Presentations

Quartz Crystals has been treasured and utilized through history, and this chapter addresses its many uses, mineralogy, history, and legend over time...

Ethical Blind Spots In Adoption Lawyering, Malinda L. Seymore

Faculty Scholarship

Lawyers engaged in adoption work often call it “happy law,” and consider adoption – finding a child for yearning parents, finding parents for a needy child – an unmitigated good. That attitude can mask the fact that all adoption begins with loss. One family loses a child so that another family can gain one. A lawyer’s assurance that she is engaged in positive work can lead to ethical blind spots that ignore the complexities of adoption practice. And while the touchstone of adoption is the best interests of the child, the primacy in legal ethics of the interests of the …

The Footprint Of The Chinese Petro-Dragon: The Future Of Investment Law In Transboundary Resources, Guillermo J. Garcia Sanchez

Faculty Scholarship

Chinese offshore investments in the oil and gas sector around the world are on the rise. Like dragons roaming the seas trying to dominate the tides, Chinese state-owned companies are particularly eager to bid for oil fields in maritime borderlines. The article tells the story of how Chinese state-owned companies are over paying for oil on the US-Mexico boundary to gather experience on how China’s global competitors handle resource development conflicts. My argument is that Chinese participation in transboundary field development fits within a long-term strategy to master international legal regimes. The presence of these petro-dragons in borderlines is an …

Boynton V. Virginia And The Anxieties Of The Modern African-American Customer, Amber Baylor

Faculty Scholarship

In 1958, Bruce Boynton was arrested for ordering food in a Whites-Only diner and charged with criminal trespass. Sixty years later, African Americans continue to face arrest and threat of arrest in commercial establishments based on discriminatory trespass claims. When store owners or employees decide to exclude would-be patrons from their establishment for discriminatory reasons, both overt and implicit, they rely on the police to enforce this form of discrimination. This article considers the legacy of Boynton v. Virginia, particularly the resonance of Boynton’s unaddressed claim, that the state enforcement of discriminatory trespass allegations is an Equal Protection violation.

African-American …

The Lost Promise Of Lambert V. California, Cynthia Alkon

Faculty Scholarship

This Article will start with a brief overview of the Lambert case. It will then discuss the differing views on how to interpret this relatively short case. Next, it will review the cases citing to Lambert that illustrate the narrow approach that courts have taken when applying this case. Finally, it will offer some thoughts on how Lambert could have played a role in preventing some of the excesses of mass incarceration, but failed.

Trauma-Informed Advocacy: Learning To Empathize With Unspeakable Horrors, Susan Ayres

Faculty Scholarship

No abstract provided.

Copyright And The 1%, Glynn Lunney

Faculty Scholarship

No one ever argues for copyright on the grounds that superstar artists and authors need more money, but what if that is all, or mostly all, that copyright does? This article presents newly available data on the distribution of players across the PC videogame market. This data reveals an L-shaped distribution of demand. A relative handful of games are extremely popular. The vast majority are not. In the face of an L curve, copyright overpays superstars, but does very little for the average author and for works at the margins of profitability. This makes copyright difficult to justify on either …

Goodbye To Concurring Opinions, Meg Penrose

Faculty Scholarship

Modern Supreme Court opinions are too long. They are too fractured. And they often lack clarity. Separate opinions, particularly concurring opinions, are largely to blame. Today’s justices are more inclined to publish separate opinions than their predecessors.The justices do not want to read lengthy briefs but appear willing to publish lengthy opinions. Yet the justices owe us clarity. They should want the law to be understandable—and understood. In hopes of achieving greater legal clarity, this article calls for an end to concurring opinions.

The modern Court writes more separate opinions than past courts. It is becoming far too common that …

Transparency After Carpenter, Hannah Bloch-Wehba

Faculty Scholarship

This brief invited response to Professor Matthew Tokson’s Foulston-Siefkin lecture on the Supreme Court's decision in Carpenter v. United States makes two contributions. First, I highlight the social, political, and economic factors at play in the Carpenter decision. The Carpenter Court recognized, in particular, that digital surveillance implicates the rights of more than just criminal suspects: it poses unique and unappreciated threats to public governance of policing. The decision, I argue, reflects longstanding preoccupations in Fourth Amendment decisions with protecting the “public” — particularly innocent third parties — from intrusive and baseless investigations. In so doing, I situate Professor Tokson’s …

Geographical Indications Of Origin, Economic Development, And Cultural Heritage: Good Match Or Mismatch?, Irene Calboli

Faculty Scholarship

In this article, I propose that geographical indications (GIs) carry important economic benefits. First, GIs are essential instruments to facilitate investments in high-quality products and niche markets, and promote local trade and development. Second, GIs offer an additional layer of information for consumers about the geographical origin and quality of the products they identify, in turn reducing the information asymmetries between producers and consumers. Third, because of this information function, GIs can assist in rewarding or holding producers accountable for their products based on the additional information they convey to the market. Yet, GIs can also protect culture-related interests and …

Occupational Therapy Students’ Perceptions Of Osce: A Qualitative Descriptive Analysis, Nancy E. Krusen, M. Nicole Martino

Journal of Occupational Therapy Education

Objective Structured Clinical Examinations (OSCE) are commonly used across health professions educational programs to evaluate student clinical competencies. OSCE are multiple, brief stations representing common practice scenarios. The purpose of the study was to evaluate student perceptions of OSCE. The researchers implemented 17 OSCE stations with 40 second year occupational therapy students to assess clinical competencies prior to fieldwork. Applying a qualitative descriptive methodologic approach, researchers analyzed station rating data, Qualtrics survey Likert-type items, and Qualtrics survey open-ended responses. Number of station rating responses varied widely, due to perceived time press. Station rating responses confirmed the more robust 80% response …

Exploring Sleep Health Among Occupational Therapy Students, Kathy M. Yang, Stacy Smallfield

Journal of Occupational Therapy Education

A substantial number of health-professional graduate students do not follow the national recommendation of obtaining at least seven hours of sleep per day. Decreased sleep duration and quality are strongly associated with daytime sleepiness and dysfunction, academic burnout, low academic performance, and mental health symptoms and disorders. However, limited research exists on sleep health among occupational therapy (OT) graduate students. Thus, the purpose of this study was to explore OT graduate student perspectives on sleep and to measure their sleep duration, quality, and practices to inform sleep promotion strategies for increased student well-being. A mixed-method study with a cross-sectional design …

Prevalence And Types Of Incivility In Occupational Therapy Fieldwork, Deborah J. Bolding, Travis Dudley, Adrienne Dahlmeier, Lauren Bland, Aimee Castro, Adrianna Covarrubias

Journal of Occupational Therapy Education

Civility between health professions students and fieldwork educators enhances positive learning outcomes, while incivility can lead to stress, loss of confidence, mistakes, disengagement, and decreased patient outcomes. A survey of recent graduates of occupational therapy programs (N = 247) explored the prevalence and types of incivility and bullying experienced during their Level II fieldwork experiences. Respondents reported that incivility in fieldwork education was widespread, with more severe experiences of bullying reported by 16% of respondents. Occupational therapy programs and fieldwork educators must take an active role in prevention and management of uncivil behaviors, and promote positive academic and patient …

The Subject-Centered Integrative Learning Model: A New Model For Teaching Occupational Therapy’S Distinct Value, Barb Hooper, Matthew Molineux, Wendy Wood

Journal of Occupational Therapy Education

The concept of occupation-centered education has been used to describe what programs do when they infuse occupation throughout an occupational therapy curriculum. In describing occupation-centered education, educators often describe the strategies they use to help students learn occupation, including courses about occupation, direct experience with occupation, cases and questions that connect biomedical sciences and health conditions to occupation, assignments that require students to infuse occupation into therapy, curriculum threads related to occupation, and many others. While each of these strategies is important, no conceptual model exists that defines occupation-centered education, elaborates its concepts and principles, and guides the development of …