Digital Commons Network^™

Density And Temperature Scaling Of Disorder-Induced Heating In Ultracold Plasmas, Scott D. Bergeson, A. Denning, M. Lyon, F. Robicheaux

Faculty Publications

We report measurements and simulations of disorder-induced heating in ultracold neutral plasmas. Fluorescence from plasma ions is excited using a detuned probe laser beam while the plasma relaxes from its initially disordered nonequilibrium state. This method probes the wings of the ion velocity distribution. The simulations yield information on time-evolving plasma parameters that are difficult to measure directly and make it possible to connect the fluorescence signal to the rms velocity distribution. The disorder-induced heating signal can be used to estimate the electron and ion temperatures ~100 ns after the plasma is created. This is particularly interesting for plasmas in …

Stern-Gerlach Dynamics With Quantum Propagators, Bailey C. Hsu, Manuel Berrondo, Jean F. Van Huele

Faculty Publications

We study the quantum dynamics of a nonrelativistic neutral particle with spin in inhomogeneous external magnetic fields. We first consider fields with one-dimensional inhomogeneities, both unphysical and physical, and construct the corresponding analytic propagators. We then consider fields with two-dimensional inhomogeneities and develop an appropriate numerical propagation method. We propagate initial states exhibiting different degrees of space localization and various initial spin configurations, including both pure and mixed spin states. We study the evolution of their spin densities and identify characteristic features of spin density dynamics, such as the spatial separation of spin components, and spin localization or accumulation. We …

Cooperating Teacher's Expectations For Student Teachers During The Student Teaching Experience In Physical Education, Robert Christenson, David C. Barney

Faculty Publications

The student teaching experience is important. The student teacher wants to be successful during their student teaching experience. Part of working successfully with the cooperating teacher can greatly impact a student teacher's success. The purpose of this study was to investigate school based cooperative teachers' experiences with student teachers for the purpose of better preparing physical education teacher education majors for their student teaching. For this study 100 experienced physical educators were surveyed to find out what student teachers should expect to do to be successful when student teaching. One of the main findings from this study was for student …

Religiosity, Coping, And Psychological Well-Being Among Latter-Day Saint Polynesian In The U.S., Kawika Allen, P. Paul Heppner

Faculty Publications

There is limited knowledge about coping and psychological adjustment in Latter-Day Saint (LDS) Polynesians. This study examined religiosity, collectivistic coping, and psychological well-being among 94 LDS Polynesians residing in the Midwest. As hypothesized, religiously committed LDS Polynesians were more likely to have a healthy psychological well-being and were also likely to use collectivistic coping styles, such that high helpfulness ratings on family support and religion-spirituality coping styles were significantly correlated with a positive psychological well-being. Family support also moderated the relationship between LDS Polynesians’ religious commitment and psychological well-being. Implications are discussed in terms of religiosity, culture, coping, and psychological …

Reading Nephi Reading Isaiah Reading 2 Nephi 26–27, Joseph M. Spencer, Jenny Webb

Faculty Publications

This series of books is based on a novel idea: that Mormons do theology. Doing theology is different from weighing history, deciding doctrine, or inspiring devotion. Theology speculates. It experiments with questions and advances hypotheses. It tests new angles and pulls loose threads. It reads old texts in careful and creative ways.

4q521 And What It Might Mean For Q 3–7, Gaye Strathearn

Faculty Publications

I am personally grateful for S. Kent Brown. He was a committee member for my master’s thesis, in which I examined 4Q521. Since that time he has been a wonderful colleague who has always encouraged me in my academic pursuits.

Religiosity In Adolescence And Emerging Adulthood, Carolyn Mcnamara Barry, Larry J. Nelson

Faculty Publications

According to IEA Civic Education Study, approximately half of American adolescents participate in religious groups (Torney-Purta et al. 2001) and half of American 18–24-year-olds report religious beliefs to be important (Inglehart et al. 2004). Thus, religious experiences are an important aspect of the lives of many adolescents and emerging adults (approximately ages 18 to the mid-20s) in the USA. Specifically, adolescents are fully immersed in identity exploration and ideally resolve this search in emerging adulthood. They embark on a quest to solidify their values and beliefs about countless issues, including religiosity. This essay will review the literature on religiosity among …

Religiosity, Self-Control, And Antisocial Behavior: Religiosity As A Promotive And Protective Factor, Robert D. Laird, Loren D. Marks, Matthew D. Marrero

Faculty Publications

Three hypotheses with the potential to provide information on the role of religiosity as a promotive and protective factor in early adolescence were tested. Adolescents (N = 166, M age = 13 years, 49% female, 49% European American, 45% African American) and mothers reported their own personal importance of religion and the frequency of their attendance of religious services. Greater mother importance and attendance was associated with greater adolescent importance and attendance. Mother importance was indirectly linked to adolescent antisocial behavior through adolescent importance. Less adolescent importance and attendance were associated with low self-control and low self-control was associated …

A Petri Net-Based Approach To Reconfigurable Manufacturing Systems Modeling, Y. Geng, A. Lim, H. Ma, Brian Rodrigues

Research Collection Lee Kong Chian School Of Business

Reconfigurable manufacturing systems (RMSs) have been used to provide manufacturing companies with the required capacities and capabilities, when needed. Recognizing (1) the importance of dynamic modeling and visualization in decision making support in RMSs and (2) the limitations of the existing studies, we model RMSs based on Petri net (PN) techniques with focus on the process of reconfiguring system elements while considering constraints and system performance. In response to the modeling difficulties identified, a new formalism of colored timed PNs is introduced. In conjunction with colored tokens and timing in colored PNs and timed PNs, we further define a reconfiguration …

Self Assembly In Additive Manufacturing: Opportunities And Obstacles, Nathan B. Crane, J. Tuckerman, G. N. Nielson

Faculty Publications

Purpose

Additive manufacturing offers substantial flexibility in shape, but much less flexibility in materials and functionality—particularly at small size scales. A system for automatically incorporating microscale components would enable the fabrication of objects with more functionality. This paper considers the potential of self assembly to serve as an automated programmable integration method. In particular, it addresses the ability of random self assembly processes to successfully assemble objects with high performance despite the possibility of assembly errors.

Methodology

A self-assembled thermoelectric system is taken as a sample system. The performance expectations for these systems are then predicted using modified one-dimensional models …

Knowledge Sourcing And Knowledge Consumption In Computer- Mediated Complex Decision Making, Nathan W. Twyman, Jeffrey L. Jenkins, Jay F. Nunamaker Jr., Katherine Carl

Faculty Publications

Individuals are turning increasingly toward web-based information sources as input for complex decisions. Gathering and evaluating decision criteria in an online context is enticing because of information availability and increased control over the process, but how do these factors impact performance? This study shows how an interaction effect between Social Comparison and Social Facilitation predicts and explains how decision making performance is influenced differently by an information consumption-only approach versus a consumeand- contribute approach. Results from an empirical evaluation indicate that publishing decision criteria and reasoning (e.g. in a forum, blog, or knowledge base) plays an important role in improving …

Model-Driven Software Development, Stephen W. Liddle

Faculty Publications

Software development is a complex and difficult task that requires the investment of significant resources and carries major risk of failure. For decades now, researchers have proposed “model-driven” approaches to improve the state of the art in software engineering. Software models are intended to improve communication among stakeholders and aid in the overall understanding both of a problem space and a proposed software solution that satisfies given requirements. As with architectural blueprints or miniature 3D models, software models make it possible to explore and test a design and its ramifications before investing in the actual build-out. The traditional approach to …

Dynamic Collaboration: Participant-Driven Agile Processes For Complex Tasks, Joel H. Helquist, Amit Deokar, Thomas Meservy, John Kruse

Faculty Publications

Groups and decision makers are increasingly running headlong into complexity as interconnections and interdependencies between individuals and organizations continue to grow, decision time horizons shrink and more work is being performed by distributed teams. These factors are driving up overall problem space complexity and limiting the effectiveness of time-tested decision and collaboration processes. Increases in problem space complexity lead to higher equivocality in collaborative processes and associated products. Electronic collaboration support tools and associated process management schemes have proven successful in many challenging contexts. However, current collaboration process management schemes and tools may not be able to effectively handle more …

Picturing Flag Violence In Civil War Sheet Music: The Case Of “Down With The Traitors’ Serpent Flag”, Kenneth Hartvigsen

Faculty Publications

Published in Chicago in 1861, “Down with the Traitors’ Serpent Flag” is one of thousands of political parlor songs from the American Civil War. Many of these songs are unremarkable musically and were preserved in homes, archives, and museum collections largely for their vibrant illustrations. In my presentation I examine this song’s lithographic cover illustration—a Union soldier grinding a Confederate flag into the dust—within a broader discourse of Civil War flag imagery taken from songs, political cartoons, and cartes-de-visite.

Compelling secrets exist within this colorful image that may not first meet the eye; to uncover these meanings along with the …

Shifting Perspectives On Grammar: Changing What And How We Teach, Deborah Dean

Faculty Publications

What is it about teaching language that makes it so problematic? Is it because language is connected to who and what we are and everything we do? That has to be part of it. I know that I’ve been through my share of discussions about language and how to teach it, with those involved holding a variety of perspectives. I’ve watched those discussions shift over the years of my teaching as something new comes up and perspectives shift again. Today, when I read articles or hear discussions about teaching grammar, I find interesting dichotomies in perspectives. Some people see language …

Post-School Data Collection Question Bank, Ryan O. Kellems Ph.D., Charlotte Y. Alverson, Deanne Unruh, Dawn A. Rowe

Faculty Publications

States must collect and report post-school outcomes of youth with disabilities as defined in the SPP/APR Indicator #14, specifically: “Percent of youth who are no longer in secondary school, had IEPs in effect at the time they left school, and were: A. Enrolled in higher education within one year of leaving high school. B. Enrolled in higher education or competitively employed within one year of leaving high school. C. Enrolled in higher education or in some other postsecondary education or training program; or competitively employed or in some other employment within one year of leaving high school.” (20 U.S.C. 1416(a)(3)(B))