Digital Commons Network^™

Reliability Of Programmable Input/Output Pins In The Presence Of Configuration Upsets, Paul S. Graham, Nathaniel Rollins, Michael J. Wirthlin, Michael P. Caffrey

Faculty Publications

Sponsorship: Los Alamos National Laboratories (LA-UR-02-3163). Field programmable gate arrays (FPGAs) are an attractive alternative for space-based remote sensing applications. However, SRAM-based FPGAs are sensitive to radiation induced single-event upsets within the configuration memory. Such configuration upsets may change the logic, routing, and operating modes of a user FPGA design. Upsets within the configuration of an I/O block are especially troublesome as they may impact the operation of other system components. This paper will evaluate the operation of the I/O block within the Xilinx Virtex FPGA in the presence of configuration memory upsets and introduce techniques for detecting and repairing …

Pair Attribute Learning: Network Construction Using Pair Features, Tony R. Martinez, Eric K. Henderson

Faculty Publications

We present the Pair Attribute Learning (PAL) algorithm for the selection of relevant inputs and network topology. Correlations on training instance pairs are used to drive network construction of a single-hidden layer MLP. Results on nine learning problems demonstrate 70% less complexity, on average, without a significant loss of accuracy.

The Algebra And Geometry Of Curve And Surface Inversion, Thomas W. Sederberg, Eng-Wee Chionh, Kent Ridge

Faculty Publications

An inversion equation takes the Cartesian coordinates of a point on a parametric curve or surface and returns the parameter value(s) of that point. A 2-D curve inversion equation has the form t = f(x,y)/g(x,y). This paper shows that practical insight into inversion can be obtained by studying the geometry of the implicit curves f(x,y) = 0 and g(x,y) = 0. For example, the relationship between the singular locus of the parametric curve and the lowest possible degree of an inversion equation can be understood in this way. Also, insight is given into what parameter value will be returned if …

The Cemetery Record Of William D. Huntington, Nauvoo Sexton, Fred E. Woods

Faculty Publications

When John Butler first visited Commerce (later known as Nauvoo) he recalled, "I asked Brother Joseph what kind of a place it was. He said it was a low, marshy, wet, damp and nasty place, but that if we went to work and improved it, it would become more healthy and the Lord would bless it for our sakes." The Prophet Joseph Smith also stated, "the name of our city (Nauvoo) is of Hebrew origin, and signifies a beautiful situation, or place, carrying with it, also, the idea of rest; and is truly descriptive of the most delightful situation... This …

Has The Lord Turned Bankrupt? The Attempted Sale Of The Nauvoo Temple, 1846-1850, Richard Bennett

Faculty Publications

If Joseph Smith had lived we should not have been here at this time. We should have been in some other country. We can't stay in this house but a little while. We have got to build another house. It will be a larger house than this, and a more glorious one. And we shall build a great many houses, we shall come back here and we shall go to Kirtland, and build houses all over the continent of North America. On 4 April 1999 Gordon B. Hinckley, President of The Church of Jesus Christ of Latter-day Saints, electrified millions …

How Long, Oh Lord, How Long? James E. Talmage And The Great War, Richard Bennett

Faculty Publications

What is it that is happening? A war greater in area and scale and more fearful in carnage, than any that has ever been since life on the round world began. Five months--no more--have passed since the first gun was fired, and already the list of men who were strong, healthy, capable, keen, five short months ago, and who are now stark in death, outnumbers anything of its kind in human history. And to reckon up the load of sheer blank sorrow in innumerable homes, and the actual but incidental war sufferings, short of death, or possibly worse than death, …

A Categorial Grammar Fragment For Lushootseed, Deryle W. Lonsdale

Faculty Publications

This paper establishes a basic framework for a Categorial Grammar (CG) description ofLushootseed morpho syntax and semantics. After a brief review of English CG principles, a preliminary attempt is made to apply these fundamentals to Lushootseed free and bound morphemes. Several sample derivations are presented. including one rather complex syntactic ambigiuty previously noted in the literature with its alternative descriptions. Once the syntactic elements have been put in place a short overview is presented of how semantic interpretation can be established in tandem with syntactic composition principles. Finally, the implementation of this framework within the Attribute Logic Engine environment is …

A Niche At The Nexus: Situating An Nlp Curriculum Interdisciplinarily, Deryle W. Lonsdale

Faculty Publications

This paper discusses the establishment and implementation of a curriculum for teaching NLP. At the core are two classes which involve some theoretical background, extensive hands-on experience with state-ofthe-art technologies, and practical application in the form of an intensive programming project. Issues involving interdisciplinary coordination, curriculum design, and challenges in teaching this discipline are discussed.

Peppering Knowledge Sources With Salt: Boosting Conceptual Content For Ontology Generation, Deryle W. Lonsdale, Yihong Ding, David W. Embley, Alan Melby

Faculty Publications

This paper describes work done to explore the common ground between two different ongoing research projects: the standardization of lexical and terminological resources, and the use of conceptual ontologies for information extraction and data integration. Specifically, this paper explores improving the generation of extraction ontologies through use of a comprehensive terminology database that has been represented in a standardized format for easy tool-based implementation. We show how, via the successful integration of these two distinct efforts, it is possible to leverage large-scale terminological and conceptual information having relationship-rich semantic resources in order to reformulate, match, and merge retrieved information of …

Why Quantitative?, David Eddington

Faculty Publications

It is generally the case that special volumes include studies on a narrowly defined topic of linguistic investigation from a single theoretical standpoint. A glance at the table of contents of the present issuem on the other hand, reveals an eclectic group of papers with topics ranging from second-language acquisition to feature theory. In addition to the variety of topics covered, it should be noted that a wide variety of theoretical frameworks is represented. The present volume contains the work of researchers who assume structuralist, generative, functionalist, and psycholinguistic perspectives. Nevertheless, the thread that ties these studies together is that …

The Influence Of Pitch And Loudness Changes On The Acoustics Of Vocal Tremor, Christopher Dromey, Paul Warrick, Jonathan Irish

Faculty Publications

The effect of tremor on phonation is to modulate an otherwise steady sound source in its amplitude, fundamental frequency, or both. The severity of untreated vocal tremor has been reported to change under certain conditions that may be related to muscle tension. In order to better understand the phenomenon of vocal tremor, its acoustic properties were examined as individuals volitionally altered their pitch and loudness. These voice conditions were anticipated to alter the tension of the intrinsic laryngeal muscles. The voices of 10 individuals with a diagnosis of vocal tremor were recorded before participating in a longitudinal treatment study. They …

Factors For Effective Learning Groups In Face-To-Face And Virtual Environments, Charles R. Graham

Faculty Publications

Group work has been a powerful instructional method used in face-to-face learning environments. To date, group work has not reached the same prominence in distance learning environments where there is a strong emphasis on independent or individualistic learning. This may be due in part to the perceived difficulty of engaging students in working together at a distance, as well as a general lack of knowledge about the factors that contribute to effective virtual group work. This paper reviews the literature related to creating effective learning groups in face-to-face and virtual environments. Research from the following four areas was used: cooperative …

The Plains Commence: Lewis And Clark On The Middle Missouri, Jay H. Buckley

Faculty Publications

THE CORPS OF DISCOVERY awakened to a damp morning on July 14, 1804. Rain had fallen all night and the wetness delayed departure until 7 a.m. A half-hour later, an ominous black cloud blew in, accompanied by wind and rain that pummeled the 55-foot keelboat and two pirogues. Unable to seek safety on either shore - because of banks caving in on one side and snags lining the other - the men anchored the keelboat midstream and braced for the squall to pass.

A Metropolitan Transaction-Based Commercial Price Index: A Time-Varying Parameter Approach, Henry J. Munneke, Barrett A. Slade

Faculty Publications

This study examines the usefulness of time-varying parameter techniques for constructing reliable transaction-based commercial price indices for metropolitan areas. Time-varying parameter techniques allow the implicit prices of differing quality characteristics to vary intertemporally, overcoming the potential bias imposed by holding implicit prices fixed and simply interpreting time dummy variables as in a conventional hedonic approach. This paper empirically investigates three time-varying parameter methods (Chained, Laspeyres, and Paasche) and considers the potential for sample selection bias. Precision measures are constructed to examine the reliability of the respective indices.

Firm Transparency And The Costs Of Going Public, James S. Ang, James C. Brau

Faculty Publications

We demonstrate that firms that are more transparent pay less, in all components of issuance costs, to go public.We employ a sample of 334 previous leveraged buyouts and a characteristic-matched control sample to test the hypothesis that greater firm transparency before the issue decreases the flotation costs of the initial public offering. These flotation costs are divided into initial underpricing, underwriter discount, administrative expenses, and the overallotment option required to take the firm public. Our results provide further evidence of the asymmetric information hypothesis as it applies to initial public offerings.

Do Banks Price Owner–Manager Agency Costs? An Examination Of Small Business Borrowing, James C. Brau

Faculty Publications

Ang, Cole, and Lin (2000) provide evidence that supports the theoreticalwork of Jensen and Meckling (1976) on agency costs. As a further examination, I conduct a test to determine the economic significance of owner–manager agency conflicts. Using the same data source and empirical framework as Ang, Cole, and Lin (2000), I test to determine if banks chargeapremiumwhenextendingloans tofirmswith variousownership structures. In empirical tests, I find that banks do not require an owner–manager agency premium either through increased interest rates or through the requirement of collateral. Instead, I find that the interest rate is significantly affected by the length of the …

An Antidote For Testosterone Poisoning: Ya Books Girls—And Boys—Should Read, Chris Crowe

Faculty Publications

Today's world is loaded with dangers and dangerous people; it's a place where kids-good and bad, naive and worldly, cautious and reckless-are at risk. The sources of these risks are sometimes masked in the mixed messages children learn from society-messages about gender roles, about behavior, about what's right and what's not.

Some of the fuzzy messages that concern me most are the ones that influence the behavior of young adult males. All teachers know that teenage boys can be some of the most obnoxious creatures on earth. I know this from personal experience as a former obnoxious boy and as …

De Facto Ya Literature And False Expectations, Chris Crowe

Faculty Publications

When I was in the later grades of elementary school and the first year of junior high school, I spent many leisure hours reading stories that had heen written for and marketed to kids like me. Series novels like The Hardy Boys and Tom Swift and comic books by DC and Marvel provided me with plenty of reading material. Those series books, some sports novels, and, when I was in sixth and seventh grade, science fiction novels—especially anything by Jules Verne or H. G. Wells—pretty much accounted for the sum total of my personal knowledge of book-length fiction.

What To Do For Your Summer Vacation: Resources For Recharging Your Ya Literature Batteries, Chris Crowe

Faculty Publications

The saying, "Too many books, so little time," describes the feelings of most English teachers and librarians, especially during the busy school year. Fortunately, summer vacation is just around the corner, and if you've not already committed to projects that will eat up June, July, and August, here are some resources you can use to catch up on YA literature.

Ya Boundary Breakers And Makers, Chris Crowe

Faculty Publications

Vincent van Gogh. Pablo Picasso. Georgia O'Keefe. Jackson Pollock. Andy Warhol. These painters, all incredibly famous now, were at one time on the fringe of the art world, creating their own kind of art, work that pushed back the boundaries of artistic conventions, broke traditional rules, and produced paintings that redefined "art." Their paintings are so well known now that it's easy to take for granted the impact these artists had on the art world, but their challenges to existing standards and forms have had a lasting impact on modem art.

Young adult literature has also had its share of …

Parental Psychological Control: Implications For Childhood Physical And Relational Aggression, David A. Nelson, Nicki R. Crick

Faculty Publications

Children who experience difficulties with peers also tend to experience both concurrent social–psychological difficulties and long-term negative developmental outcomes. Specifically, a significant amount of research has identified peer rejection and isolation as significant precursors to academic troubles and socially deviant behavior (DeRosier, Kupersmidt, & Patterson, 1994; Kupersmidt, Coie, & Dodge, 1990; Parker & Asher, 1987; Parker, Rubin, Price, & DeRosier, 1995). Substantial research and intervention efforts have consequently been dedicated to an understanding of the problem behaviors commonly identified as correlates or antecedents of peer rejection. Childhood aggression is one of the most significant predictors of peer rejection, and has …

Maternal Psychological Control And Preschool Children’S Behavioral Outcomes In China, Russia, And The United States, Susanne Frost Olsen, Chongming Yang, Craig H. Hart, Clyde C. Robinson, Peixia Wu, David A. Nelson, Larry J. Nelson, Shenghua Jin, Jianzhong Wo

Faculty Publications

A growing body of Western literature has demonstrated the importance of three domains of socialization—connection with significant others, regulation of behavior, and the facilitation of psychological autonomy—in predicting outcomes in adolescents and children (Barber, 1997a, 1997b; Gray & Steinberg, 1999; Hart, Newell, & Olsen, in press; Nelson, 1997; Steinberg, Dornbusch, & Brown, 1992). Psychological control—parenting that does not allow children psychological autonomy, as has been defined elsewhere in this volume, has received increased attention in the past decade (for a discussion of definitions and research, see chapter 2, this volume).

Zurich's Militia Records In The Fifteenth Century, Albert Winkler

Faculty Publications

Switzerland was involved in a civil war from 1440 to 1446. To defend itself, Zurich called out its militia. In the militia records from 1442, the entire structure of the force can be reconstructed. A list of over two thousand names of the militiamen is presented. This includes their occupations, area of residence, the weapons they carried, and where they stood in the Zurich battle formation.

Book Review Of The English Poor Laws, 1700-1930, Michael Ashley Stein

Faculty Publications

No abstract provided.

Localization Of Carriers And Polarization Effects In Quaternary Alingan Multiple Quantum Wells, E. Kuokstis, J. Zhang, M.-Y. Ryu, J. W. Yang, Grigory Simin, M. Asif Khan, R. Gaska, M. S. Shur

Faculty Publications

We report on observing a long-wavelength band in low-temperature photoluminescence(PL)spectrum of quaternary Al_0.22In_0.02Ga_0.76N/Al_0.38In_0.01Ga_0.61N multiple quantum wells(MQWs), which were grown over sapphire substrates by a pulsed atomic-layer epitaxy technique. By comparing the excitation-power density and temperature dependence of the PLspectra of MQWs and bulk quaternary AlInGaN layers, we show this emission band to arise from the carrier and/or exciton localization at the quantum well interface disorders. PL data for other radiative transitions in MQWs indicate that excitation-dependent spectra position is determined by screening of the built-in electric field.

Development Of Cfl-Free, Explicit Schemes For Multidimensional Advection-Reaction Equations, Hong Wang, Jiangguo Liu

Faculty Publications

We combine an Eulerian–Lagrangian approach and multiresolution analysis to develop unconditionally stable, explicit, multilevel methods for multidimensional linear hyperbolic equations. The derived schemes generate accurate numerical solutions even if large time steps are used. Furthermore, these schemes have the capability of carrying out adaptive compression without introducing mass balance error. Computational results are presented to show the strong potential of the numerical methods developed.

Manipulation Of Prenatal Hormones And Dietary Phytoestrogens During Adulthood Alter The Sexually Dimorphic Expression Of Visual Spatial Memory, Edwin D. Lephart, Trent D. Lund

Faculty Publications

In learning and memory tasks, requiring visual spatial memory (VSM), males exhibit higher performance levels compared to females (a difference attributed to sex steroid hormonal influences). Based upon the results from our companion investigation, this study examined the influence of prenatal sex steroid hormone manipulations on VSM in adulthood, as assessed in the radial arm maze. Additionally, the influence of dietary soy phytoestrogens (i.e., the presence of high or low estrogen-like compounds present in the animal's diet) on VSM was examined in combination with the prenatal hormonal manipulations. Results: Radial arm maze performance on a phytoestrogen-rich diet: 1) females treated …

Ultraviolet Light-Emitting Diodes At 340 Nm Using Quaternary Alingan Multiple Quantum Wells, V. Adivarahan, A. Chitnis, J. P. Zhang, M. Shatalov, J. W. Yang, Grigory Simin, M. Asif Khan, R. Gaska, M. S. Shur

Faculty Publications

An ultraviolet light-emitting diode with peak emission wavelength at 340 nm is reported. The active layers of the device were comprised of quaternary AlInGaN/AlInGaN multiple quantum wells, which were deposited over sapphire substrates using a pulsed atomic-layer epitaxy process that allows precise control of the composition and thickness. A comparative study of devices over sapphire and SiC substrates was done to determine the influence of the epilayer design on the performance parameters and the role of substrate absorption.

Visual Spatial Memory Is Enhanced In Female Rats (But Inhibited In Males) By Dietary Soy Phytoestrogens, Edwin D. Lephart, Trent D. Lund, Timothy W. West, Lilyan Y. Tian, Lihong H. Bu, Daniel L. Simmons, Kenneth Setchell, Herman Adlercreutz

Faculty Publications

In learning and memory tasks, requiring visual spatial memory (VSM), males exhibit superior performance to females (a difference attributed to the hormonal influence of estrogen). This study examined the influence of phytoestrogens (estrogen-like plant compounds) on VSM, utilizing radial arm-maze methods to examine varying aspects of memory. Additionally, brain phytoestrogen, calbindin (CALB), and cyclooxygenase-2 (COX-2) levels were determined. Results: Female rats receiving lifelong exposure to a high-phytoestrogen containing diet (Phyto-600) acquired the maze faster than females fed a phytoestrogen-free diet (Phyto-free); in males the opposite diet effect was identified. In a separate experiment, at 80 days-of-age, animals fed the Phyto-600 …

Origins Of Nonstoichiometry And Vacancy Ordering In Sc1-X□Xs, Gus L. W. Hart, Alex Zunger

Faculty Publications

Whereas nearly all compounds AnBm obey Dalton's rule of integer stoichiometry (n:m, both integer), there is a class of systems, exemplified by the rocksalt structure Sc1-x□xS, that exhibits large deviations from stoichiometry via vacancies, even at low temperatures. By combining first-principles total energy calculations with lattice statistical mechanics, we scan an astronomical number of possible structures, identifying the stable ground states. Surprisingly, all have the same motifs: (111) planes with (112) vacancy rows arranged in (110) columns. Electronic structure calculations of the ground states (identified out of ~3 × 10^6 structures) reveal the remarkable origins of nonstoichiometry.