Digital Commons Network^™

And I Saw The Hosts Of The Dead, Both Small And Great: Joseph F. Smith, World War I, And His Visions Of The Dead, Richard Bennett

Faculty Publications

As I pondered over these things which are written, the eyes of my understanding were opened, and the Spirit of the Lord rested upon me, and I saw the hosts of the dead, both small and great (D&C 138:11).

A Two-Level Implementation For Lushootseed Morphology, Deryle W. Lonsdale

Faculty Publications

This paper describes the implementatio of a computer system that processes Lushootseed word forms. Built on the two-level model and leveraging finite-state technology, the system is able both to parse surface forms to arives at the underlying morphemic decomposition, and to generate surface forms given such a representation. Components of the system are discussed including the lexicon architecture, rule formulation and specification, ans the word-structurer grammar. Issues relevant to processing Lushootseed are discussed including reduplication, allomorphic variation, inflectional and derivational affixation, and morphophonemic alternations.

An Operator-Based Account Of Semantic Processing, Deryle W. Lonsdale, C. Anton Rytting

Faculty Publications

This paper explores issues of psychological plausibility in modeling natural language understanding within Soar, a symbolic cognitive model. It focuses on constructing syntactic and semantic representations in simulated real time, with particular emphasis on word sense disambiguation (WSD). We discuss (i) what level of WSD should be modeled and (ii) how to use resources such as WordNet to inform these models. A preliminary model of coarse-grained WSD is included to show how syntactic, semantic, and other knowledge sources interact in Soar. Finally, we explore issues of interleaving, learning, and integrating other WSD approaches with Soar's native model of learning.

Small-Angle X-Ray Studies Of Soot Inception And Growth, Jan P. Hessler, Soenke Seifert, Randall E. Winans, Thomas H. Fletcher

Faculty Publications

The high spectral intensity of X-rays produced by the undulator at the Basic Energy Sciences Synchrotron Radiation Center of Argonne's Advanced Photon Source has allowed us to perform small-angle X-ray scattering (SAXS) studies of the initial distribution of soot particles formed by various fuels. SAXS provides an in situ probe of the morphology of soot in the region between 1 and 100 nm and complements the ex situ technique of electron microscopy. The basic aspects of SAXS and its potential are illustrated with measurement on a laminar flame of acetylene in air. The more complex fuel toluene has been studied …

Nitrogen Transformations During Secondary Coal Pyrolysis, Haifeng Zhang, Thomas H. Fletcher

Faculty Publications

A CO/H₂/O₂/N₂ flame was operated under fuel-rich conditions in a flat flame reactor to provide a high-temperature, oxygen-free environment to study secondary reactions of coal volatiles. The distributions of fuel nitrogen in the devolatilization products of four coals, ranging from high volatile bituminous to lignite, were obtained at gas temperatures ranging from 1159 to 1858 K. It was found that the initial nitrogen released was contained almost exclusively in the tar for all coals. Release of nitrogen from the char as light gases started at a later stage than tar nitrogen release. During secondary reactions, …

Simulation Of Coal Pyrolysis In Plasma Jet By Cpd Model, Yajun Tian, Kechang Xie, Suyu Zhu, Thomas H. Fletcher

Faculty Publications

Reaction of coal in a plasma jet is complex and extremely rapid, and acetylene and carbon monoxide are the main products in the pyrolysis gas. Coal pyrolysis is assumed as the first step reaction when coal is injected into hot plasma jet with initial average temperature of 3700 K. Chemical percolation devolatilization (CPD) is employed first to simulate this procedure in mechanism. The calculation results indicate coal pyrolysis rate in plasma jet is very fast and the retention time of coal staying in reactor is only several milliseconds. Comparing the calculation with experiment result, it was concluded that the CPD …

13-C Nmr Analysis Of Soot Produced From Model Compounds And A Coal, Mark S. Solum, Adel F. Sarofim, Ronald J. Pugmire, Thomas H. Fletcher, Haifeng Zhang

Faculty Publications

Soot samples, including the associated organics, produced from an Illinois No. 6 coal (five samples) and two model compounds, biphenyl (three samples) and pyrene (two samples), have been studied by ¹³C NMR methods. The coal soot data served as a guide to selection of the temperature range that would be most fruitful for investigation of the evolution of aerosols composed of soot and tars that are generated from model compounds. The evolution of the different materials in the gas phase followed different paths. The coal derived soots exhibited loss of aliphatic and oxygen functional groups prior to significant growth …

Transformations Of Coal-Derived Soot At Elevated Temperature, Thomas H. Fletcher, Jim Rigby, Jinliang Ma, Brent W. Webb

Faculty Publications

Coal pyrolysis experiments were performed in the post-flame region of a CH₄/H₂/air flat-flame burner operating under fuel-rich conditions, where the temperature and gas compositions were similar to those found in the near-burner region of an industrial pulverized coal-fired furnace. Volatiles released from the coal particles formed a cloud of soot particles surrounding a centrally fed coal/char particle stream. Soot samples were collected from the cloud at different residence times using a water-cooled, nitrogen-quenched probe. The soot samples were then analyzed for their elemental compositions of carbon, hydrogen, nitrogen, sulfur, and (by difference) oxygen plus inorganic matter. …

Seven Principles Of Effective Teaching: A Practical Lens For Evaluating Online Courses, Charles R. Graham, Kursat Cagiltay, Byung-Ro Lim, Joni Craner, Thomas M. Duffy

Faculty Publications

The "Seven Principles for Good Practice in Undergraduate Education," originally published in the AAHE Bulletin (Chickering & Gamson, 1987), are a popular framework for evaluating teaching in traditional, face-to-face courses. The principles are based on 50 years of higher education research (Chickering & Reisser, 1993). A faculty inventory (Johnson Foundation, "Faculty," 1989) and an institutional inventory (Johnson Foundation, "Institutional," 1989) based on these principles have helped faculty members and higher-education institutions examine and improve their teaching practices.

We, a team of five evaluators from Indiana University's Center for Research on Learning and Technology (CRLT), recently used these principles to evaluate …

The Bullet Gic As An Example, David F. Babbel, Jeremy Gold, Craig B. Merrill

Faculty Publications

There has been considerable discussion of a variety of issues related to fair value in the actuarial literature, in conferences, and among individuals interested in this topic. Unfortunately, we seem to be failing to communicate due, in part, to inconsistent use of terminology. The goal of this discussion paper is to present a few concepts that we hope will be of use in the broader discussion of fair value of liabilities.

Sports Literature For Young Adults, Chris Crowe

Faculty Publications

A few days ago, I sat in a dark theater trying to wipe the tears from my eyes vvithout either of my teenage daughters noticing. We were watching Remember the Titans, a fine movie about Coach Herman Boone's first year as head football coach of the newly integrated football team at T. C. Williams High School in 1971, and several scenes in the movie touched the old high school coach/high school jock heart that still beats in my chest and brought tears to my eyes.

\Vhen I considered my reaction to the film, I assumed that I was caught up …

Ap And Ya?, Chris Crowe

Faculty Publications

Perhaps the most traditional, conservative bastions of literature in America are those that are home to the thousands of high school Advanced Placement English classes throughout the United States. In these classrooms, diligent students and teachers study "literature of enduring quality" in preparation for the rigorous AP English literature examination given each spring. Typically the curriculum of these courses relies heavily on the classics: works by Shakespeare, Tolstoy, Hugo, Austen, Hawthorne, Hemingway, and the rest of the authors enshrined in literature's pantheon. Of course, in recent decades the literary canon has loosened up enough to accept a handful of works …

Grammar Without Grammar: Just Playing Around, Writing, Deborah Dean

Faculty Publications

When I first started teaching, grammar education was specifically addressed in my district's learning objectives: students will identify adjectives and adverbs; they will diagram subjects and direct objects. As a new teacher, I did my best to meet the objectives. I tried to make the content interesting and, somehow, connected to writing: we wrote clues for treasure hunts using prepositional phrases and descriptions of our own 'wild things" (a la Maurice Sendak) with elaborate adjectives. Once, I spent a week teaching verbals with comic strips to a ninth grade honors class, only to receive a scathing letter from a parent …

Relational Victimization In Childhood And Adolescence: I Hurt You Through The Grapevine, Nicki R. Creek, David A. Nelson, Julie R. Morales, Crystal Cullerton-Sen, Juan F. Casas, Susan E. Hickman

Faculty Publications

Sylvia usually feels pretty good about herself, but lately her friends at school have been acting a little strangely toward her. When she goes to sit with them in the cafeteria at lunch, everyone stops talking. When she passes people in the hall, she hears them whispering behind their hands. And then just yesterday she overheard someone saying that Mindy was having a birthday party, and she hasn't been invited. What Sylvia doesn't know is that Mindy has been spreading gossip about her to their mutual friends ever since Sylvia beat her out for the lead in the school play. …

Gender And Bilinguals' Creativity, Wendy Baker

Faculty Publications

Research on the influence of gender on language across different cultures has mostly concentrated on qualitative measures of analysis. These measures demonstrate that there are differences in rhetorical and literary style across world Englishes in both and outer circle. Using Biber's multidimensional analysis (1988) to examine a large corpus of world English literatures written in Indian, West African, Britain, Anglo-American and Mexican American varieties of English, this paper examines whether quantitative analyses can also be insightful and useful in the examination of the influence of gender on language and in expanding our understanding of what "bilingual creativity" entails. The results …

High-Quality P-N Junctions With Quaternary Alingan/Ingan Quantum Wells, A. Chitnis, A. Kumar, M. Shatalov, V. Adivarahan, A. Lunev, J. W. Yang, Grigory Simin, M. Asif Khan, R. Gaska, M. Shur

Faculty Publications

We report on quaternary AlInGaN/InGaN multiple quantum well(MQW)light emitting diode structures grown on sapphire substrates. The structures demonstrate high quality of the p–njunctions with quaternary MQW. At low forward bias (below 2 V), the temperature dependent of current–voltage characteristics are exponential with the ideality factor of 2.28, which is in a good agreement with the model of the injected carrier recombination in the space charge region. This ideality factor value is approximately three times lower than for conventional GaN/InGaN light emitting diodes(LEDs). The obtained data indicate the recombination in p–njunction space charge region to be responsible for a current transport …

Finite-Aperture Wire Grid Polarizers, Michael A. Jensen, Gregory P. Nordin

Faculty Publications

The transmission characteristics of wire grid polarizers fabricated in finite apertures are investigated by using a three-dimensional finite-difference time-domain formulation. Specifically, the optical transmissivity and extinction ratio are characterized for a wide variety of geometrical parameters including aperture size in both dimensions, conducting wire fill factor, and polarizer thickness. A dispersive material model is used to investigate the performance of polarizers fabricated by using realistic metals at infrared wavelengths. The results indicate that the aperture dimension significantly impacts the polarizer transmission behavior and that the extinction of the unwanted polarization is often limited by depolarizing scattering that is due to …

Direct Generation Of Optical Diffractive Elements In Perfluorocyclobutane (Pfcb) Polymers By Soft Lithography, Gregory P. Nordin, J. Ballato, P. C. Deguzman, S. Foulger, H. Shah, D. Smith

Faculty Publications

Optically diffractive line gratings with 0.58- m feature sizes have been generated in 100- m perfluorocyclobutane (PFCB) polymer films by direct micromolding using only a silicon master. Strong reflectivities from the green to red portions of the visible spectrum, depending on incident beam angle, were observed with 3 dB bandwidths of approximately 30 nm. This negative mold-free technique permits, for the first time to our knowledge, feature reproduction at submicrometer size scales, eliminates several steps from conventional soft lithographic methods, and marks itself as a practical means for rapidly generating planar photonic structures that operate spectrally in the visible and …

Othello And Interpretive Traditions, Philip C. Kolin

Faculty Publications

No abstract provided.

Simplified Calculation Of The Stability Matrix For Semiclassical Propagation, Sophya Garashchuk, John C. Light

Faculty Publications

We present a simple method of calculation of the stability (monodromy) matrix that enters the widely used semiclassical propagator of Herman and Kluk and almost all other semiclassical propagators. The method is based on the unitarity of classical propagation and does not involve any approximations. The number of auxiliary differential equations per trajectory scales linearly rather than quadratically with the system size. Just the first derivatives of the potential surface are needed. The method is illustrated on the collinear H[sub 3] system.

Functional Projections Of Predicates: Experimental Evidence From Coordinate Structure Processing, Stanley William Dubinsky, Marie Egan, A. Rene Schumauder, Matthew J. Traxler

Faculty Publications

This paper reports the results of six experiments involving an on-line self-paced reading task that examine the processing of coordinate small clause predicate phrases versus coordinated arguments NPs. The results have particular significance for the analysis of small clause complement constructions, and support accounts wherein the small clause complement has an Agr projection associated with it. An adequate explanation of the processing of small clause coordination is shown to motivate a new parsing principle, Coordination Feature-matching, which accounts for the longer reading times observed for the coordination of predicates in small clause complements.

The Confessions Of Edward Isham: A Poor White Life Of The Old South, By Edward Isham, Edited By Charles C. Bolton And Scott P. Culclasure, Lacy K. Ford, Jr.

Faculty Publications

A review of The Confessions of Edward Isham: A Poor White Life of the Old South, by Edward Isham, edited by Charles C. Bolton and Scott P. Culclasure

Effect Of Gate Leakage Current On Noise Properties Of Algan/Gan Field Effect Transistors, S. L. Rumyantsev, N. Pala, M. S. Shur, R. Gaska, M. E. Levinshtein, M. Asif Khan, Grigory Simin, X. Hu, J. Yang

Faculty Publications

The effect of the gate leakage current fluctuations on noiseproperties of AlGaN/GaN heterostructurefield effect transistors(HFETs) has been studied in conventional HFET structures and in AlGaN/GaN metal-oxide-semiconductorheterostructurefield effect transistors (MOS-HFETs). The comparison of the noiseproperties of conventional AlGaN/GaN HFETs and AlGaN/GaN MOS-HFETs fabricated on the same wafer, allowed us to estimate the contribution of the gate currentnoise to the HFET’s output noise. The effect of the gate current fluctuations on output noiseproperties of HFETs depends on the level of noise in the AlGaN/GaN HFETs. For the transistors with a relatively high magnitude of the Hooge parameter α∼10⁻³, even a …

Proteolytic Enzymes In The Marine Bacterium Pseudoalteromonas Atlantica: Post-Secretional Activation And Effects Of Environmental Conditions, Monica Hoffman, Alan W. Decho

Faculty Publications

Production and activities of cellular and extracellular proteolytic enzymes associated with the marine bacterium Pseudoalteromonas atlantica were examined in response to physiological state and changing environmental variables under laboratory conditions. Enzymes evidenced by zymography were metalloproteases, as defined by substrate preference and susceptibility to inhibitors (EDTA and 1, 10-phenanthroline). Distinct bands (i.e. molecular-weight [MW] size classes) of enzymes were isolated from within cellular and extracellular compartments. Susceptibility of extracellular enzymes to environmental stressors was related, in part, to the MW size classes of the enzymes. While all bands of enzymes showed some degree of inhibition when pH was decreased, the …

Gender Differences In Sexual Behaviors And Factors Associated With Nonuse Of Condoms Among Homeless And Runaway Youths, Duncan A. Mackeller, Linda A. Valleroy, John P. Hoffmann, Donna Glebatis, Marlene Lalota, William Mcfarland, Johnny Westerholm, Robert S. Janssen

Faculty Publications

Few studies have examined gender-specific factors associated with the nonuse of condoms among homeless and runaway youths (HRYs)–a population at high risk for HIV infection. In this article, we evaluate these factors and explore gender differences in background experiences, psychosocial functioning, and risk behaviors among HRYs from four U.S. metropolitan areas. Of 879 sexually active HRYs sampled, approximately 70% reported unprotected sexual intercourse during a 6-month period, and nearly a quarter reported never using condoms in the same period. Among males and females, having only one sex partner in the previous 6 months had the strongest association with nonuse of …

The Averaging Lemma, Ronald A. Devore, Guergana Petrova

Faculty Publications

No abstract provided.

Molecular Dynamics Calculations Of The Electrochemical Properties Of Electrolyte Systems Between Charged Electrodes, Richard L. Rowley, Paul S. Crozier, Douglas Henderson

Faculty Publications

We investigate the interfacial electrochemical properties of an aqueous electrolyte solution with discrete water molecules in slab geometry between charged atomistic electrodes. Long-range intermolecular Coulombic interactions are calculated using the particle particle particle mesh method with a modification to account for the slab geometry. Density distribution profiles and potential drops across the double layer are given for 0, 0.25, and 1 M aqueous electrolyte solutions each electrode surface charges. Results are compared qualitatively with experimental x-ray scattering findings, other computer simulation results, and traditional electrochemistry theory. The interfacial fluid structure characteristics are generally in good qualitative agreement with the conclusions …

Parallel Phylogenetic Inference, Mark J. Clement, David Mclaughlin, Quinn O. Snell, Michael Whiting

Faculty Publications

Recent advances in DNA sequencing technology have created large data sets upon which phylogenetic inference can be performed. However, current research is limited by the prohibitive time necessary to perform tree search on even a reasonably sized data set. Some parallel algorithms have been developed but the biological research community does not use them because they don’t trust the results from newly developed parallel software. This paper presents a new phylogenetic algorithm that allows existing, trusted phylogenetic software packages to be executed in parallel using the DOGMA parallel processing system. The results presented here indicate that data sets that currently …

The Use Of Uniaxial And Triaxial Accelerometers To Measure Children's "Free-Play" Physical Activity, Alise E. Ott, Russell R. Pate, Stewart G. Trost, Dianne S. Ward, Ruth P. Saunders

Faculty Publications

In order to effectively measure the physical activity of children, objective monitoring devices must be able to quantify the intermittent and nonlinear movement of free play. The purpose of this study was to investigate the validity of the Computer Science and Applications (CSA) uniaxial accelerometer and the TriTrac-R3D triaxial accelerometer with respect to their ability to measure 8 "free-play" activities of different intensity. The activities ranged from light to very vigorous in intensity and included activities such as throwing and catching, hopscotch, and basketball. Twenty-eight children, ages 9 to 11, wore a CSA and a heart rate monitor while performing …

Dna Binding Properties Of The Arabidopsis Floral Development Protein Aintegumenta, Staci Nole-Wilson, Beth A. Krizek

Faculty Publications

The Arabidopsis protein AINTEGUMENTA (ANT) is a member of a plant-specific family of transcription factors (AP2/EREBP) that share either one or two copies of an approximately 70 amino acid region called the AP2 repeat. DNA binding activity has been demonstrated previously for members of this family containing a single AP2 repeat. Using an in vitro selection procedure, the DNA binding specificity of the two AP2 repeat containing protein ANT was found to be 5'-gCAC(A/G)N(A/T)TcCC(a/g)ANG(c/t)-3'. This consensus site is much longer than sites recognized by proteins containing a single AP2 repeat and neither AP2 repeat of ANT was alone capable of …