Digital Commons Network^™

Fragments Of Development, By Suzanne Bergeron And A Critical Rewriting Of Global Political Economy: Integrating Productive, Reproductive, And Virtual Economies, By V. Spike Peterson, Drucilla K. Barker

Faculty Publications

A review of Fragments of Development, by Suzanne Bergeron, and A Critical Rewriting of Global Political Economy: Integrating Productive, Reproductive, and Virtual Economies, by V. Spike Peterson.

Taking A Closer Look At Measurement – Using Teacher Read Alouds Of Nonfiction To Develop Students’ Measurement Sense, Elana Joram, Faith Garcia

Faculty Publications

Many students think of measurement as a set of procedures, for example, lining up a ruler with an object, and stating the number on the ruler that corresponds with one end of the object. This may be one reason that measurement is typically one of the weakest areas of mathematical achievement on the National Assessment of Educational Progress (Struchens, Martin, & Kenney, 2003). To combat students’ weaknesses in measurement, we suggest that in the early grades they need to develop a feel for standard measurement units, such as inches and feet, and become familiar with real world referents that correspond …

Search Engine Bias And The Demise Of Search Engine Utopianism, Eric Goldman

Faculty Publications

Due to search engines' automated operations, people often assume that search engines display search results neutrally and without bias. However, this perception is mistaken. Like any other media company, search engines affirmatively control their users' experiences, which has the consequence of skewing search results (a phenomenon called "search engine bias"). Some commentators believe that search engine bias is a defect requiring legislative correction. Instead, this Essay argues that search engine bias is the beneficial consequence of search engines optimizing content for their users. The Essay further argues that the most problematic aspect of search engine bias, the "winner-take all" effect …

Parallelization Of Multicategory Support Vector Machines (Pmc- Svm) For Classifying Microarray Data, Chaoyang Zhang, Peng Li, Arun Rajendran, Youping Deng, Dequan Chen

Faculty Publications

Background: Multicategory Support Vector Machines (MC-SVM) are powerful classification systems with excellent performance in a variety of data classification problems. Since the process of generating models in traditional multicategory support vector machines for large datasets is very computationally intensive, there is a need to improve the performance using high performance computing techniques.

Results: In this paper, Parallel Multicategory Support Vector Machines (PMC-SVM) have been developed based on the sequential minimum optimization-type decomposition method for support vector machines (SMO-SVM). It was implemented in parallel using MPI and C++ libraries and executed on both shared memory supercomputer and Linux cluster …

Maldi-Tof Baseline Drift Removal Using Stochastic Bernstein Approximation, Joseph Kolibal, Daniel Howard

Faculty Publications

Stochastic Bernstein (SB) approximation can tackle the problem of baseline drift correction of instrumentation data. This is demonstrated for spectral data: matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF) data. Two SB schemes for removing the baseline drift are presented: iterative and direct. Following an explanation of the origin of the MALDI-TOF baseline drift that sheds light on the inherent difficulty of its removal by chemical means, SB baseline drift removal is illustrated for both proteomics and genomics MALDI-TOF data sets. SB is an elegant signal processing method to obtain a numerically straightforward baseline shift removal method as it includes a …

Improving The Energy Behavior Of Block Buffering Using Compiler Optimizations, M. Kandemir, J. Ramanujam, U. Sezer

Faculty Publications

On-chip caches consume a significant fraction of the energy in current microprocessors. As a result, architectural/circuit-level techniques such as block buffering and sub-banking have been proposed and shown to be very effective in reducing the energy consumption of on-chip caches. While there has been some work on evaluating the energy and performance impact of different block buffering schemes, we are not aware of software solutions to take advantage of on-chip cache block buffers. This article presents a compiler-based approach that modifies code and variable layout to take better advantage of block buffering. The proposed technique is aimed at a class …

Concurrent Multiple- Issue Negotiation For Internet-Based Services, Jiangbo Dang, Michael N. Huhns

Faculty Publications

Negotiation is a technique for reaching a mutually beneficial agreement among autonomous entities. In an Internet-based services context, multiple entities are negotiating simultaneously. The concurrent negotiation protocol extends existing negotiation protocols, letting both service requestors and service providers manage several negotiation processes in parallel. Colored Petri nets, which have greater expressive power than finite state machines and offer support for concurrency, represent the negotiation protocol and facilitate the analysis of desirable properties.

Detector Dogs And Probable Cause, Richard E. Myers Ii

Faculty Publications

No abstract provided.

Taxometric Investigation Of Ptsd: Data From Two Nationally Representative Samples, Joshua J. Broman-Fulks, Kenneth J. Ruggiero, Bradley A. Green, Dean G. Kilpatrick, Carla Kmett Danielson, Heidi S. Resnick, Benjamin E. Saunders

Faculty Publications

Current psychiatric nosology depicts posttraumatic stress disorder (PTSD) as a discrete diagnostic category. However, only one study has examined the latent structure of PTSD, and this study suggested that PTSD may be more accurately conceptualized as an extreme reaction to traumatic life events rather than a discrete clinical syndrome. To build on the existing literature base, the present research examined the latent structure of posttraumatic stress reactions by applying three taxometric procedures (MAXEIG, MAMBAC, and L-Mode) to data collected from large nationally representative samples of women (ns = 2684 and 3033) and adolescents (n = 3775). Results …

Reduce, Refine, Replace: The Failure Of The Three R’S And The Future Of Animal Experimentation, Darian M. Ibrahim

Faculty Publications

No abstract provided.

New Orleans, The Chesapeake, And The Future Of Environmental Assessment: Overcoming The Natural Resources Law Of Unintended Consequences, Erin Ryan

Faculty Publications

No abstract provided.

Adaptive Finite Element Methods For Elliptic Pdes Based On Conforming Centroidal Voronoi-Delaunay Triangulations, Lili Ju, Max Gunzburger, Weidong Zhao

Faculty Publications

A new triangular mesh adaptivity algorithm for elliptic PDEs that combines a posteriori error estimation with centroidal Voronoi–Delaunay tessellations of domains in two dimensions is proposed and tested. The ability of the first ingredient to detect local regions of large error and the ability of the second ingredient to generate superior unstructured grids result in a mesh adaptivity algorithm that has several very desirable features, including the following. Errors are very well equidistributed over the triangles; at all levels of refinement, the triangles remain very well shaped, even if the grid size at any particular refinement level, when viewed globally, …

Modeling Volume Changes In Porous Electrodes, Parthasarathy M. Gomadam, John W. Weidner

Faculty Publications

A three-dimensional mathematical model is presented to describe volume changes in porous electrodes occurring during operation. Material conservation equations are used to derive governing relationships between electrode dimensions and porosity for deposition/precipitation, intercalation, and ionomer-based electrodes. By introducing a parameter, called the swelling coefficient, the relative magnitudes of the change in electrode dimensions and the change in porosity are determined. The swelling coefficient is design-dependent and measured experimentally for a given cell design. The model is general and forms a critical addition required to extend the existing porous electrode models to include volume change effects. For the special case of …

Monopsonistic Wage Discrimination And Employment Effect Under Conditions Of Constant Labor Supply Elasticity, Yeung-Nan Shieh

Faculty Publications

No abstract provided.

Hydrodynamic Description Of The Adiabatic Piston, Alejandro Garcia, M. M. Mansour

Faculty Publications

A closed macroscopic equation for the motion of the two-dimensional adiabatic piston is derived from standard hydrodynamics. It predicts a damped oscillatory motion of the piston towards a final rest position, which depends on the initial state. In the limit of large piston mass, the solution of this equation is in quantitative agreement with the results obtained from both hard disk molecular dynamics and hydrodynamics. The explicit forms of the basic characteristics of the piston’s dynamics, such as the period of oscillations and the relaxation time, are derived. The limitations of the theory’s validity, in terms of the main system …

Homer Simpson Meets The Rule Against Perpetuities: The Controversial Use Of Pop-Culture In Legal Writing Pedagogy, Louis N. Schulze Jr.

Faculty Publications

Imagine that you have returned to your first year of law school. In your legal writing course, you are required to finish the year with an extensive brief analyzing a legal problem. After months in your doctrinal courses dealing with mind-bending legal issues such as liquidated damages, substantive due process, felony murder, personal jurisdiction, and shifting executory interests, you are ready to sink your teeth into a challenging legal writing assignment. You want to show your stuff and prove that your writing is law review caliber. Your assignment starts as follows: Greenacre is a parcel of land bounded on three …

The University Library: The Center Of A University Education?, Patricia A. Frade, Allyson Washburn

Faculty Publications

During 2001-2002, a formal study was conducted jointly by Brigham Young University's Office of Planning and Assessment (OPA) and the Harold B. Lee Library (HBLL) to determine the value of the library to the university community. The study described in this paper was undertaken at a time when some experts were predicting the demise of the academic library, and university administrators were questioning the need for new building, budget, and personnel requests. This paper will present a description of the study and its results, a comparison of similar data collected two years later, and a description of two new student …

Assessing Geo-Location And Gender Information In Han Chinese Personal Names, Deryle W. Lonsdale, Bruce Brown

Faculty Publications

Brigham Young University is a particularly optimal academic institution for comparative cross-cultural onomastic research. There are over 65 nations represented by five or more students at BYU, and in fall semester of 2004, 10252 of the 29729 students had lived for two years in a foreign country.

From Clay Tablets To Canon: The Story Of The Formation Of Scripture, Kerry M. Muhlestein

Faculty Publications

Presented at the 35th Sperry Symposium. The Sidney B. Sperry Symposium is sponsored by Brigham Young University Religious Education and the Church Educational System. It is difficult for us, in the age of information, to appreciate the impact of both the sweeping movements and technical advances that allowed for the creation of the canonized book we call the Bible. We live in a time when we regularly turn to written documents for the "final word", and we take for granted an astounding volume of written works and easy access to them. Indeed, it has been argued that U.S. culture has …

A Retrospective, Descriptive Study Of Shoulder Outcomes In Outpatient Physical Therapy, A. Lynn Millar, Philip A. Jasheway, Wendy Eaton, Frances Christensen

Faculty Publications

Study Design: A retrospective, descriptive study of clients with shoulder dysfunction referred to physical therapy. Objectives: To (1) describe the clinical and functional outcomes of clients with shoulder dysfunction following outpatient physical therapy, and (2) to compare the outcomes by type of shoulder dysfunction. Background: Although individuals with shoulder dysfunction are commonly referred to physical therapy, few large descriptive studies regarding outcomes following physical therapy are available. Methods and Measures: Data for 878 clients (468 female, 410 male) were retrieved and analyzed. This database was developed between 1997 and 2000 and included 4 outpatient facilities from 1 healthcare system in …

A Computational Analysis Of Navajo Verb Stems, David Eddington, Jordan Lachler

Faculty Publications

One of the principal goals of linguistics is to find, classify, and describe relationships between words. Many formal mechanisms such as rules and constraints have been devised in order to show systematic relationships. Inflectional paradigms are a crucial component of a linguistic analysis that has applications for pedagogical grammars. For example, over the past 20 years there have been numerous Navajo textbooks produced that are aimed at beginning learners of the language. These include works such as Diné Bizaad Bóhoo'aah (Navajo Language Institute 1986), Diné Bizaad: Speak, Read, Write Navajo (Goossen 1995), and The Navajo Verb: A Grammar for Students …

Online Payment Gateways Used To Facilitate E-Commerce Transactions And Improve Risk Management, Paul Benjamin Lowry, Taylor Michael Wells, Greg Moody, Sean Lamarc Humpherys, Degan Kettles

Faculty Publications

As online transactions continue to increase and become a significant part of the global economy, the ability to accept payments online becomes more important for businesses. This paper evaluates the literature and provides current information for IS researchers and instructors focusing on electronic commerce. In this paper, we explore the components of e-credit providers (conventional, person-to-person, and third-party) and explain how each system processes a single transaction. We then analyze several market leaders in each segment and summarize the strengths and weaknesses of each company. We provide guidelines for selecting an e-credit provider and highlight the options that apply best …

Where The Cardinals Come To Sing, Scott Moncrieff

Faculty Publications

No abstract provided.

Satisficing Negotiations, Wynn C. Stirling, James K. Archibald, Jared C. Hill, F. Ryan Johnson

Faculty Publications

Negotiation procedures that are founded on the doctrine of individual rationality, where each participant is committed to maximizing its own satisfaction, are limited in their ability to accommodate the interests of others, and therefore, may unnecessarily constrain the negotiability of a decision maker, particularly in cooperative environments. Satisficing game theory provides a distinct alternative to the hyperrationality of conventional rational choice by waiving reliance on the individual rationality premise and offering an approach to negotiatory decision making that is based on a well-defined mathematical notion of satisficing, or being good enough, that permits the modeling of complex interrelationships between agents. …

The "Fair" Triathlon: Equating Standard Deviations Using Bayesian Nonlinear Models, Gilbert W. Fellingham, C. Shane Reese, S. Mckay Curtis

Faculty Publications

The Ironman triathlon was created in 1978 by combining events with the longest distances for races then contested in Hawaii in swimming, cycling, and running. The Half Ironman triathlon was formed using half the distances of each of the events in the Ironman. The Olympic distance triathlon was created by combining events with the longest distances for races sanctioned by the major federations for swimming, cycling, and running. The relative importance of each event in overall race outcome was not given consideration when determining the distances of each of the races in modern triathlons. Thus, there is a general belief …

Mathematically Modeling The Effects Of Counting Factor (Cf) In Dictyostelium Discoideum, J. C. Dallon, W. Jang, R. H. Gomer

Faculty Publications

Size regulation is a crucial feature in many biological systems, with misregulation leading to dysplasia or hyperplasia. The recent discovery of counting factor (CF) in Dictyostelium discoideum will lead to a greater understanding of how the system regulates the size of a group of cells. In this paper we mathematically model the known effects of CF using two different models: a cellular automata model and a discrete continuum hybrid model. With the use of these models we are able to understand how modulation of adhesion and motile forces by CF can facilitate stream breakup. In addition, the modelling suggests a …

Grain Boundary Property Determination Through Measurement Of Triple Junction Geometry And Crystallography, Brent L. Adams, D. Casasent, M. Demirel, Bassem S. El-Dasher, D. Kinderlehrer, C. Liu, I. Livshits, F. Manolache, D. Mason, A. Morawiec, W. W. Mullins, S. Ozdemir, Gregory S. Rohrer, Anthony D. Rollett, David M. Saylor, Shlomo Ta'asan, A. Talukder, Chialin T. Wu, C. C. Yang, W. Yang

Faculty Publications

This work was supported primarily by the MRSEC program of the National Science Foundation under Award Number DMR-0079996. Microstructure controls the properties of most useful materials. Thus an ability to control microstructure through the processing of materials is a key to optimization of materials performance. Most materials are polycrystalline and their grain structure is a very important aspect of their microstructure. Thanks to their complexity there is a great variety of grain boundary types even in relatively isotropic materials such as the cubic metals. Simply describing the crystallography requires five (macroscopic) parameters (e.g. disorientation and inclination). Evidently, acquiring a knowledge …

Extending Taylor Plasticity Theory For Microscopic Slip Transfer Conditions, Brent L. Adams, Ray M. Merrill, John A. Basinger, Bassem S. El-Dasher

Faculty Publications

This work was supported primarily by the MRSEC Program of the National Science Foundation under DMR-0079996. Most studies in crystal plasticity are based upon Taylor's original 1938 work. Within Taylor's framework the dependence of yield strength on microstructure, beyond lattice orientation, is carried within the critical resolved shear stress for slip. Thus, as the grain size decreases, the critical resolved shear stress is required to increase. This increase in critical resolved shear stress is applied, uniformly across the entire interior of the slipping grains according to the basic assumption of the model (uniform plastic strain or strain rate). It is …

Pathways To Success In Pre-College Mathematics, Bob Madsen, Ted Hodgson, Carol Ward

Faculty Publications

Like most tribal colleges, Chief Dull Knife College (CDKC, Lame Deer, MT) offers a sequence of pre-college mathematics courses - Basic Mathematics, Introductory Algebra, and Intermediate Algebra - to assist students who lack college-level skills. To enhance student support, CDKC created the Student Learning Center, which is started by instructors and student interns and offers computer work stations.

Learning Competent Fathering: A Longitudinal Analysis Of Marital Intimacy And Fathering, Kay Bradford, Alan J. Hawkins

Faculty Publications

Although scholars have documented many links between marital relationships and parenting, these associations are not commonly explained in terms of behavior that is learned or achieved over time. This paper examines the idea that good fathering – conceptualized here as competent fathering – is the result of a developmental process, and that a loving, committed relationship between parents creates a context in which traits supportive of caring fathering are likely to be learned and practiced. After setting the stage conceptually, we provide a modest initial test of this hypothesis to discern the associations between three components of marital intimacy (emotional …