Digital Commons Network^™

Studies To Characterize Heavy Metal Content And Migration From Recycled Polyethyleneterephthalate, Michael John-Ross Whitt

Master's Theses

Packaging Materials account for 31% of the world’s municipal solid waste. Agencies like the Environmental Protection Agency (EPA) and the Agency for Toxic Substances and Disease Registry (ATSDR) are pushing for the increased use of recycled thermoplastic materials. Polyethylene terephthalate (PET) is a commonly recycled thermoplastic which is used to package ready-to-eat fruits and vegetables. Most recycled polyethylene terephthalate (RPET) packaging materials contain heavy metal catalysts, the most common being antimony. The recent increased use of recycled plastic materials has been suspected as the source of increased human heavy metal exposure. In this study, cadmium, chromium, nickel, lead and antimony …

The Most Feared Man In Italy, Kathryn Bockino

Gandy Dancer Archives

No abstract provided.

Parkinson's, Cassidy Carroll

Gandy Dancer Archives

No abstract provided.

Disassembly, Joshua Kent

Gandy Dancer Archives

No abstract provided.

Movement Of The Myth, Lore Mcspadden

Gandy Dancer Archives

No abstract provided.

An Efficient Remedy Is To Be Alone, Christina Mortellaro

Gandy Dancer Archives

No abstract provided.

An Interview With Erika Meitner, Lucia Lotempio, Kathryn Waring

Gandy Dancer Archives

No abstract provided.

Wake Up Call // Alarms At Noon // Infinity's Kiss (Sunflowers), Nate Pritts

Gandy Dancer Archives

No abstract provided.

Retroflex Versus Bunched In Treatment For Rhotic Misarticulation: Evidence From Ultrasound Biofeedback Intervention, Tara Mcallister Byun, Elaine Hitchcock, Michelle T. Swartz

Department of Communication Sciences and Disorders Faculty Scholarship and Creative Works

Method: Eight participants received 8 weeks of individual ultrasound biofeedback treatment targeting rhotics. In Study 1, all 4 participants were cued to match a bunched tongue-shape target. In Study 2, participants received individualized cues aimed at eliciting the tongue shape most facilitative of perceptually correct rhotics.Purpose: To document the efficacy of ultrasound biofeedback treatment for misarticulation of the North American English rhotic in children. Because of limited progress in the first cohort, a series of two closely related studies was conducted in place of a single study. The studies differed primarily in the nature of tongue-shape targets (e.g., retroflex, bunched) …

Tme Volume 11, Number 3

The Mathematics Enthusiast

No abstract provided.

Editorial: Is Every Tme Issue Special?, Bharath Sriraman

The Mathematics Enthusiast

No abstract provided.

The Miracle Of Applied Mathematics, Frank Blume

The Mathematics Enthusiast

We provide an outline of a college-level lecture on systems of differential equations that is intended to offer an alternative, integrative view of the subject. Particular emphasis is placed on the fact that very elementary concepts and insights can be employed to gain access to a very wide range of important applications, including the Schr¨odinger equation, the Klein-Gordon equation, the Laplace equation, and the Poisson equation.

Generalizing Cantor-Schroeder-Bernstein: Counterexamples In Standard Settings, Tien Chih

The Mathematics Enthusiast

The Cantor-Schroeder-Bernstein theorem states that any two sets that have injections into each other have the same cardinality, i.e. there is a bijection between them. Another way to phrase this is if two sets A;B have monomorphisms from A to B and B to A, then they are isomorphic in the setting of sets. One naturally wonders if this may be extended to other commonly studied systems of sets with structure and functions which preserve that structure. Given two objects with injective structure preserving maps between them are the structures of these objects the same? In other words, would these …

A Study On Malaysian Mathematicians’ Way Of Knowing, Lim Chap Sam

The Mathematics Enthusiast

“Can you name me a mathematician?” “Einstein??”

“Do you wish to become a mathematician one day?”

If these questions were asked to the public or any school students, the most likely answer to both questions might be a big ‘No!’. Why is this so?

The director of the Public Understanding of Mathematics Forum, Gene Kloz (1996) claims that the mathematics profession is the most misunderstood in all of academia. According to him, the public thinks that mathematicians contemplate ancient proofs and work as lonely recluses. Moreover, the most common public image of a mathematician has been furnished by a physicist …

Reasoning-And-Proving Within Ireland’S Reform-Oriented National Syllabi, Jon Davis

The Mathematics Enthusiast

As educational systems around the world attempt to reform their mathematics programs to increase students’ opportunities to engage in processes central to the practice of mathematics such as proof, it is important to understand how this mathematical act is portrayed in national curriculum documents that drive that change. This study examined the presence of reasoning-and-proving (RP) in Ireland’s national reform-oriented secondary syllabi for junior cycle (ages 12-15) and senior cycle (ages 15-18) students. The analyses reveal that there were no differences among direct and indirect RP learning outcomes within each syllabus, but statistically significant differences did exist across syllabi in …

Difficulties In Solving Context-Based Pisa Mathematics Tasks: An Analysis Of Students’ Errors, Ariyadi Wijaya, Marja Van Den Heuvel-Panhuizen, Michiel Doorman, Alexander Robitzsch

The Mathematics Enthusiast

The intention of this study was to clarify students’ difficulties in solving context-based mathematics tasks as used in the Programme for International Student Assessment (PISA). The study was carried out with 362 Indonesian ninth- and tenth-grade students. In the study we used 34 released PISA mathematics tasks including three task types: reproduction, connection, and reflection. Students’ difficulties were identified by using Newman’s error categories, which were connected to the modeling process described by Blum and Leiss and to the PISA stages of mathematization, including (1) comprehending a task, (2) transforming the task into a mathematical problem, (3) processing mathematical procedures, …

Scholastic Standards In The United States – The Discussion Concerning The ‘Common Core’, Alan H. Schoenfeld, Günter Törner

The Mathematics Enthusiast

Preface: This article has been developed based on a personal discussion between the German author Günter Törner and Alan Schoenfeld, who is an expert in the field of mathematical didactics. Basically there are three reasons for us to share our insights with the public:

(1) Readers, having subscribed to Jerry Becker’s e-mail information network, have received numerous messages over the past few months; what do we need to know about this fact in Germany?

(2) Scholastic standards – a keyword that sounds very familiar to us in terms of educational policy… But it is also a hot topic in other …

Development Of The Binary Number System And The Foundations Of Computer Science, Daniel R. Lande

The Mathematics Enthusiast

This paper discusses the formalization of the binary number system and the groundwork that was laid for the future of digital circuitry, computers, and the field of computer science. The goal of this paper is to show how Gottfried Leibniz formalized the binary number system and solidified his thoughts through an analysis of the Chinese I Ching. In addition, Leib-niz’s work in logic and with computing machines is presented. This work laid the foundation for Boolean algebra and digital circuitry which was continued by George Boole, Augustus De Mor-gan, and Claude Shannon in the centuries following. Some have coined Leibniz …

A Creative Problem Solving Toolkit For Mild Traumatic Brain Injury Survivors, Miriam S. Hoffman

Creativity and Change Leadership Graduate Student Master's Projects

Abstract of Project

A Creative Problem Solving Toolkit for Mild Traumatic Brain Injury Survivors

Rebuilding and recreating one’s mental and physical life after traumatic brain injury is one of the most daunting of human experiences. At the same time, this is a perfect opportunity to adopt a creative life. With a mumble-jumble of seemingly random thoughts without much rhyme nor reason post-TBI, retraining one’s brain to deliberately establish a “new normal” life can be enhanced with the deliberate process of Creative Problem Solving. Working with a balance of divergent and convergent thinking, the major premise of creative problem solving, in …

Bearing Children, Bearing Risks: Feminist Leadership For Progressive Regulation Of Compensated Surrogacy In The United States, Sara L. Ainsworth

Washington Law Review

Compensated surrogacy—an arrangement in which a woman carries and gives birth to a child for someone else in exchange for money—intimately affects women. Yet, feminist law reformers have not led efforts to regulate this practice in the United States. Their absence is notable given the significant influence of feminist lawmaking in a host of other areas where women’s interests are at stake. This lack of feminist law reform leadership can be understood, however, in light of the complex issues that surrogacy raises—complexity that has long divided feminists. In response to efforts to pass surrogacy legislation in Washington State in 2010, …

For A Feminist Considering Surrogacy, Is Compensation Really The Key Question?, Julie Shapiro

Washington Law Review

Feminists have long been engaged in the debates over surrogacy. During the past thirty years, thousands of women throughout the world have served as surrogate mothers. The experience of these women has been studied by academics in law and in the social sciences. It is apparent that if properly conducted, surrogacy can be a rewarding experience for women and hence should not be objectionable to feminists. Improperly conducted, however, surrogacy can be a form of exploitation. Compensation is not the distinguishing factor. In this essay I offer two changes to law that would improve the surrogate’s experience of surrogacy. First, …

Self-Perception On Women's Fashion Decisions, Shannon Cokes

OTS Master's Level Projects & Papers

The problem of this study was to determine if a women's self-perception affects her fashion choices in order to direct marketing strategies toward the brands she wears.

Assessment Of The Transition From Pinyin To Hanzi In University Level Introductory Chinese Language Courses, Ronnie Hess

OTS Master's Level Projects & Papers

The purpose of this study was to assess how Chinese language instructors transition from pinyin to hanzi when teaching Chinese as a second language to adult learners in a university setting.

The Saints Keep Marching In, Joe Simkus

The Prairie Light Review

No abstract provided.

Effluvium, Cody Alimorong

The Prairie Light Review

No abstract provided.

Beautiful Imperfections, Cecilia Do

The Prairie Light Review

No abstract provided.

A Tribute To Grandma Gilla, Karen F. Forslin-Bojnansky

The Prairie Light Review

No abstract provided.

Transcription Of The Streptococcus Pyogenes Hyaluronic Acid Capsule Biosynthesis Operon Is Regulated By Previously Unknown Upstream Elements, Marina Falaleeva, Oliwia W. Zurek, Robert L. Watkins, Robert W. Reed, Hadeel Ali, Paul Sumby, Jovanka M. Voyich, Natalia Korotkova

Molecular and Cellular Biochemistry Faculty Publications

The important human pathogen Streptococcus pyogenes (group A Streptococcus [GAS]) produces a hyaluronic acid (HA) capsule that plays critical roles in immune evasion. Previous studies showed that the hasABC operon encoding the capsule biosynthesis enzymes is under the control of a single promoter, P1, which is negatively regulated by the two-component regulatory system CovR/S. In this work, we characterize the sequence upstream of P1 and identify a novel regulatory region controlling transcription of the capsule biosynthesis operon in the M1 serotype strain MGAS2221. This region consists of a promoter, P2, which initiates transcription of a novel small RNA, HasS, an …

Special Remarks At The Executive Seminar On Exchange Rate Policy And Economic Management In Nigeria - Is There A Need For Paradigm Shift?, S.O. Alade

Economic and Financial Review

This is a special remark delivered by the Deputy Governor (Economic Policy) during the 23rd edition of the Annual Executive Seminar jointly organized by the Research and Human Resources Departments with the theme: "Exchange rate policy and economic management in Nigeria- Is there need for a paradigm shift?

Empirical Exposition Of Monetary Policy Under Fixed And Managed Float Exchange Rate Regime: Any Lesson For Nigeria, F.O. Egwaikhide, M. Oyinlola, O. Adeniyi, D. B. Olanipekun

Economic and Financial Review

The paper empirically investigated the relationship between monetary aggregates and the exchange rate under alternative exchange rate regimes in Nigeria. Using data spanning 1961 to 2013 to estimate vector auto-regressive (VAR) models, a number of findings ensued.