Digital Commons Network^™

Subverting Whiteness: Pedagogy At The Crossroads Of Performance, Culture, And Politics, J. Warren, Deanna Fassett

Faculty Publications

No abstract available.

Ministering In The Midst Of Competing Worldviews, Trevor O'Reggio

Faculty Publications

No abstract provided.

Review Of The Software "La Chaise Berçante", Lara Lomicka

Faculty Publications

No abstract provided.

When And How Trustworthiness Matters: Knowledge Transfer And The Moderating Effect Of Causal Ambiguity, Robert J. Jensen, Gabriel Szulanski, Rossella Cappetta

Faculty Publications

The recognition that better use of existing internal knowledge could enhance survival chances or organizations has spawned substantial interest in the transferability of routinized, experiential learning to additional settings within the organization Previous research has established that trustworthiness of the source enhances such knowledge transfer. More recent work, however, suggests that this may not always be the case. Yet, little systematic attention has been paid to moderating conditions. The major purpose of this paper is to identify a moderator, causal ambiguity, which delineates the conditions as to when and how a recipient's perception of the trustworthiness of a source affects …

The Palawai Pioneers On The Island Of Lanai: The First Hawaiian Latter-Day Saint Gathering Place (1854-1864), Fred E. Woods

Faculty Publications

A decade after the death of the Prophet Joseph Smith and his brother Hyrum, the message of the Restoration continued to breathe new spiritual life into thousands who were part of scattered Israel, and the Hawaiians were no exception. The call to gather had go forth: "Gather ye out from among the nations, from the four winds, from one end of heaven to the other. Send forth my elders of my church unto the nations, which are afar off; unto the islands of the sea" (D&C 133:7-8). After the Saints had been exiled from Nauvoo in 1846 and had migrated …

Evaluation Of Power Costs In Applying Tmr To Fpga Designs, Nathaniel Rollins, Michael J. Wirthlin, Paul S. Graham

Faculty Publications

Sponsorship: Los Alamos National Laboratory. Triple modular redundancy (TMR) is a technique commonly used to mitigate against design failures caused by single event upsets (SEUs). The SEU immunity that TMR provides comes at the cost of increased design area and decreased speed. Additionally, the cost of increased power due to TMR must be considered. This paper evaluates the power costs of TMR and validates the evaluations with actual measurements. Sensitivity to design placement is another important part of this study. Power consumption costs due to TMR are also evaluated in different FPGA architectures. This study shows that power consumption rises …

Jumpstarting Phylogenetic Analysis, Mark J. Clement, Keith A. Crandall, Kevin Seppi, Quinn O. Snell

Faculty Publications

When a new epidemic strikes, it is often important to determine the relationship between the current organism and others that have been successfully treated previously. The phylogenetic analysis problem generates the most likely family tree for a group of organisms based on DNA sequence data. This process can take a prohibitively long period of time with current algorithms. If trees resulting from prior searches are used to seed the search, correct trees can be found much more quickly. This jumpstarting algorithm can generate superior phylogenetic solutions much more quickly than existing algorithms.

Initial Experiments In The Cooperative Control Of Unmanned Air Vehicles, Derek R. Nelson, Timothy W. Mclain, Reed S. Christiansen, Randal W. Beard, David Johansen

Faculty Publications

This paper addresses cooperative control for a team of unmanned air vehicles (UAVs). Specifically, a team of three small UAVs is controlled to perform a cooperative timing mission. Starting at loiter locations distributed around the periphery of a 2 km square battle area, the UAVs cooperatively plan paths to arrive at a target at the center of the battle area in sequence at 10 sec intervals. Cooperative path planning is performed using the methodology of coordination variables and coordination functions. Coordination and waypoint path planning are centralized on a ground station computer. Experiments have been performed using BYU’s fleet of …

Optimal Sampling For Single-Tone Frequency Estimation, Travis E. Oliphant

Faculty Publications

Single-tone frequency estimation from irregularly spaced samples is analyzed. The ratio of the Cramr-Rao Bound (CRB) for regularly spaced samples to the bound for irregularly spaced samples is presented and shown to be a globally convex function. It's minima and maxima over the domain of interest are identified which reveals that improvements in the CRB can be obtained using non-equally-spaced samples. For a given sampling density, the best estimates of frequency are obtained when half of the samples are taken at one end of the total available interval and the remaining samples are taken at the other end.

Information Technology And Society Research Lab, Anita Coleman

Faculty Publications

This short presentation (12 Microsoft PowerPoint slides with 14 selective references) was delivered at the SIRLS researchers get-together. It traces the genesis of DLIST and the Information Technology and Society research lab.

The Swift Gamma-Ray Burst Mission, N. Gehrels, G. Chincarini, P. Giommi, K. O. Mason, J. A. Nousek, A. A. Wells, N. E. White, S. D. Barthelmy, D. N. Burrows, L. R. Cominsky, K. C. Hurley, F. E. Marshall, P. Mészáros, P. W.A. Roming, L. Angelini, L. M. Barbier, T. Belloni, S. Campana, P. A. Caraveo, M. M. Chester, O. Citterio, T. L. Cline, M. S. Cropper, J. R. Cummings, A. J. Dean, E. D. Feigelson, E. E. Fenimore, D. A. Frail, A. S. Fruchter, G. P. Garmire, K. Gendreau, G. Ghisellini, J. Greiner

Faculty Publications

The Swift mission, scheduled for launch in 2004, is a multiwavelength observatory for gamma-ray burst (GRB) astronomy. It is a first-of-its-kind autonomous rapid-slewing satellite for transient astronomy and pioneers the way for future rapid-reaction and multiwavelength missions. It will be far more powerful than any previous GRB mission, observing more than 100 bursts yr -1 and performing detailed X-ray and UV/optical afterglow observations spanning timescales from 1 minute to several days after the burst. The objectives are to (1) determine the origin of GRBs, (2) classify GRBs and search for new types, (3) study the interaction of the ultrarelativistic outflows …

An Unusually Large Aulocopella Winnipegensis And Associated Demosponges From The Upper Ordovician Beaverfoot Formation, Southeastern British Columbia, J. Keith Rigby, Paul A. Johnston

Faculty Publications

An unusually large specimen of the rare digitate to bladed Aulocopella winnipegensis Rauff and three relatively normal sized specimens of ashtray-shaped Hudsonospongia? sp. constitute the first record of demosponges from the Upper Ordovician Beaverfoot Formation in southeastern British Columbia and the first record of these taxa from western Canada. Gross form and canal structure are well preserved, but dolomitization and (or) coarse microsphaeroidal silicification have obliterated spicules and other structural details. We interpret these sponges as epifaunal recliners, without means of attachment to the substrate, a life mode rarely encountered in the modern sponge biota.

From Linear Optical Quantum Computing To Heisenberg-Limited Interferometry, Hwang Lee, Pieter Kok, Colin P. Williams, Jonathan P. Dowling

Faculty Publications

The working principles of linear optical quantum computing are based on photodetection, namely, projective measurements. The use of photodetection can provide efficient nonlinear interactions between photons at the single-photon level, which is technically problematic otherwise. We report an application of such a technique to prepare quantum correlations as an important resource for Heisenberg-limited optical interferometry, where the sensitivity of phase measurements can be improved beyond the usual shot-noise limit. Furthermore, using such nonlinearities, optical quantum non-demolition measurements can now be carried out easily at the single-photon level.

Characteristics Of Preschoolers With Lower Perceived Competence, Robert J. Coplan, Leanne C. Findlay, Larry J. Nelson

Faculty Publications

The goal of the present study was to identify preschool children with “age-inappropriate” less positive self-perceptions, and to explore their parental and peer relationships as compared to their classmates with “age normal” self-perceptions. Participants were n = 127 preschool children (M age = 54.98 mos., SD = 8.21). Data were collected from multiple sources including parental ratings, child self-reports, and teacher ratings. Results indicated that as compared to their peers, children with less positive self-perceptions demonstrated more internalizing problems (i.e., loneliness, social-withdrawal), were more excluded by peers, and had mothers with less positive parenting styles. Results are discussed in …

Visualizing Chromosome Structure/Organization, Eric Lam, Naohiro Kato, Koichi Watanabe

Faculty Publications

With the rapid development of sequencing technologies in the past decade, many eukaryotic genomes have been resolved at the primary sequence level. However, organization of the genome within nuclei and the principles that govern such properties remain largely unclear. Optimization of fluorescence probe-based hybridization technologies combined with new advances in the instrumentation for microscopy has steadily yielded more structural information on chromosome organization in eukaryote model systems. These studies provide static snapshots of the detailed organization of chromatin. More recently, the successful application of a chromatin tagging strategy utilizing auto fluorescent fusion proteins opened a new era of chromatin studies …

Polymorphisms Within A Polymorphism: Snps In And Around A Polymorphic Alu Insertion In Intron 44 Of The Human Dystrophin Gene, Alan D. Lovell, Vania Yotova, Fengxia Xiao, Mark A. Batzer, Damian Labuda

Faculty Publications

A polymorphic Yb-type Alu insertion on Xp21.3 shows a genotypic gradient across worldwide populations. We used single strand conformational polymorphism (SSCP), denaturing high-pressure liquid chromatography (DHPLC), and sequencing to characterize the level of polymorphism within this region. Two novel polymorphic sites were found within the Alu insertion itself, and a further seven novel polymorphic sites in the 2-kb flanking region. Our results showed that while DHPLC was more sensitive than SSCP, the limitations of DHPLC included the lack of ability to distinguish between multiple alleles or safely identify mutations on a polymorphic background. We believe that this is the first …

Reappraising T.L.O.'S Special Needs Doctrine In An Era Of School-Law Enforcement Entanglement, Josh Gupta-Kagan

Faculty Publications

This essay presents one doctrinal method for lawyers to defend children accused of criminal charges in juvenile or adult court: attacking the applicability of the twenty-year old case, New Jersey v. T.L.O., to most school searches. T.L.O. based its application of a lower standard for searches of students by school officials on the presumption that firm gates separate public school from law enforcement and criminal justice institutions. Later administrative search cases inside and outside of the school context show that tee lower standard of T.L.O. depends entirely on programmatic purposes that distinguish school systems and ordinary law enforcement. Porous schoolhouse …

Culture Clash: Teaching Cultural Defenses In The Criminal Law Classroom, Susan S. Kuo

Faculty Publications

In the law school classroom, the Socratic method of legal analysis removes a dispute at issue in a given case from its sociocultural context and takes the cultural backgrounds of the parties into account only when they serve the legal argument. The language of the law commands law students to siphon off the emotional and cultural content because of the enduring belief that the law is neutral and impartial. Accordingly, cultural conflicts are deemed irrelevant to legal analysis because laws are unbiased and culture-blind. This detached outlook has been termed perpectivelessness to denote a neutral, odorless, colorless non-perspective.

This essay …

The Distance And Interstellar Sight Line To Gx 339-4, R. I. Hynes, D. Steeghs, J. Casares, P. A. Charles, K. O'Brien

Faculty Publications

The distance to the black hole binary GX 339-4 remains a topic of debate. We examine high-resolution optical spectra of the Na D lines resolving the velocity structure along the line of sight. We find this to be complex, with at least nine components, mostly blueshifted, spanning a velocity range of nearly 200 km s-1. The presence of components with a large blueshift rules out a nearby location and requires that the binary be located at or beyond the tangent point, implying a lower limit to the distance of ∼6 kpc. The presence of a significant redshifted component at +30 …

Integration Of Non-Oai Resources For Federated Searching In Dlist, Anita Coleman, Paul Bracke, S. Karthik

Faculty Publications

Federated, distributed, and broadcast searches on the Internet depend on an underlying common metadata framework by which the information resources to be searched are organized. The Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH) is designed to facilitate searches across OAI-compliant databases. Software such as Arc allow service providers to offer federated searching of multiple, OAI-compliant resources. The majority of web-accessible information resources, however, are not OAI-compliant. This article describes a process whereby readily available open source tools and customized scripts were developed for integrating metadata from non-OAI compliant repositories for a federated search. The work described is being carried …

From Discussion Leader To Consumer Guide: A Century Of Theater Criticism In Chicago Newspapers, Scott B. Fosdick

Faculty Publications

This article completes a three-part examination of theater critics working for Chicago newspapers during the twentieth century. The first article in the series covered the "boomtown" period leading up to World War I, and the second article addressed Chicago's rise after 1960 as a regional center for theater covered by fewer newspapers and fewer critics. This article reviews those periods but emphasizes the middle, "road town" period, which saw a gradually dwindling band of critics functioning as quality control experts, passing judgment on New York road shows. After examining that period, this article uses commodification to consider the changing role …

Judicial Dialogue For Legal Multiculturalism, Charles H. Koch Jr.

Faculty Publications

No abstract provided.

Unmanned Air Vehicle Testbed For Cooperative Control Experiments, Timothy W. Mclain, Randal W. Beard

Faculty Publications

This paper describes the MAGICC Lab unmanned air vehicle (UAV) testbed at Brigham Young University. Motivation for pursuing experimental research with UAVs is given as well as a historical perspective of the UAV testbed development. Lessons learned through the development and use of the testbed over the past several years are summarized.

The Majoritarian Rehnquist Court?, Neal Devins

Faculty Publications

No abstract provided.

Learning Nursing Research Through Faculty-Mentored Projects, Patricia K. Ravert, Ben Boyer, Kirsten Harmon, Holly Scoffield

Faculty Publications

Baccalaureate nursing educators have incorporated nursing research content into the curriculum for many years. Our university also proposes that students have a faculty-mentored learning experience at least once during their undergraduate education. Student research, guided by a faculty mentor, provides an excellent opportunity for students to learn about and participate in nursing research. The authors describe a unique experience of nursing students working as research assistants in a faculty research project using a human patient simulator.

Combining Learning Approaches For Incremental On-Line Parsing, Deryle W. Lonsdale, Michael B. Manookin

Faculty Publications

This paper discusses the integration of two different machine learning approaches to modeling language, NL-Soar and analogical modeling (AM). The resulting hybrid system is capable of functionality that is not possible when using only one of the systems in isolation. After a brief introduction of each system, an explanation is given of how AM is used to provide information useful to NL-Soar for two tasks. Examples are given, and related issues are outlined.

Assessing The Quality Of Seawinds Rain Measurements, David G. Long, David W. Draper

Faculty Publications

While SeaWinds was designed to measure ocean winds, it can also measure rain over the ocean. SeaWinds on QuikSCAT active measurements of integrated columnar rain rate obtained via simultaneous wind/rain retrieval are evaluated via Monte Carlo simulation and the Cramer-Rao lower bound on estimate accuracy. Although sufficiently accurate in many conditions, the simultaneous wind/rain retrieval method used with SeaWinds on QuikSCAT data is ill-conditioned for certain wind directions and measurement geometries, sometimes yielding spurious rain rates in zero-rain conditions. To assess the validity of SeaWinds-derived rain rates, a simple empirically based rain thresholding scheme is presented, derived from simulated data. …

Automatic Detection And Validity Of The Sea-Ice Edge: An Application Of Enhanced-Resolution Quikscat/Seawinds Data, David G. Long, Jorg Haarpaintner, Rasmus T. Tonboe, Michael L. Van Woert

Faculty Publications

Sea-ice edge detection is an essential task at the different national ice services to secure navigation in ice-covered seas. Comparison between the Remund and Long ice mask image from enhanced-resolution QuikScat/SeaWinds (QS) products and the analyzed ice edge from high-resolution RADARSAT synthetic aperture radar has shown that the automatically determined QS ice mask underestimates the Arctic ice extent. QS data was statistically analyzed by colocating the data with ice charts around Greenland and with the National Aeronautics and Space Administration Team's Special Sensor Microwave/Imager (SSM/I) ice concentration algorithm over the whole Arctic region. All variables, i.e., the backscatter in vertical …

Mutual Coupling In Mimo Wireless Systems: A Rigorous Network Theory Analysis, Michael A. Jensen, Jon W. Wallace

Faculty Publications

A new framework for the analysis of multiple-input multiple-output (MIMO) wireless systems is introduced to account for mutual coupling effects in the antenna arrays. The multiport interactions at transmit and receive are characterized by representing the channel using a scattering parameter matrix. A new power constraint that limits the average radiated power is also introduced. The capacity of the MIMO system with mutual coupling is defined as the maximum mutual information of the transmit and receive vectors over all possible transmit signaling and receive loading. Full-wave electromagnetic antenna simulations combined with a simple path-based channel model are used to demonstrate …

Simultaneous Wind And Rain Retrieval Using Seawinds Data, David G. Long, David W. Draper

Faculty Publications

The SeaWinds scatterometers onboard the QuikSCAT and the Advanced Earth Observing Satellite 2 measure ocean winds on a global scale via the relationship between the normalized radar backscattering cross section of the ocean and the vector wind. The current wind retrieval method ignores scattering and attenuation of ocean rain, which alter backscatter measurements and corrupt retrieved winds. Using a simple rain backscatter and attenuation model, two methods of improving wind estimation in the presence of rain are evaluated. First, if no suitable prior knowledge of the rain rate is available, a maximum-likelihood estimation technique is used to simultaneously retrieve the …