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Mathematical Modelling Of Extracellular Matrix Dynamics Using Discrete Cells: Fiber Orientation And Tissue Regeneration, J. C. Dallon, J. A. Sherratt, P. K. Maini Aug 1999

Mathematical Modelling Of Extracellular Matrix Dynamics Using Discrete Cells: Fiber Orientation And Tissue Regeneration, J. C. Dallon, J. A. Sherratt, P. K. Maini

Faculty Publications

Matrix orientation plays a crucial role in determining the severity of scar tissue after dermal wounding. We present a model framework which allows us to examine the interaction of many of the factors involved in orientation and alignment. Within this framework, cells are considered as discrete objects, while the matrix is modeled as a continuum. Using numerical simulations, we investigate the effect on alignment of changing cell properties and of varying cell interactions with collagen and fibrin.

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Weighing And Measuring In The Worlds Of The Book Of Mormon, John W. Welch Jul 1999

Weighing And Measuring In The Worlds Of The Book Of Mormon, John W. Welch

Journal of Book of Mormon Studies

This article addresses the seemingly misplaced discussion of weights and measures in the middle of Alma 11 in the Book of Mormon. Although the interruption initially seems strange, John Welch offers new insights to explain its purpose in the Book of Mormon. For instance, knowledge of the Nephite monetary system supplements a reader’s comprehension of the bribery and corruption that occurred in that society. Evidence of this monetary system also shows a link between Near Eastern civilizations and Book of Mormon civilizations, thus providing further evidence for the divinity of Joseph Smith’s work.

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Pondering The Word, Dennis Packard, Sandra Packard Jul 1999

Pondering The Word, Dennis Packard, Sandra Packard

Journal of Book of Mormon Studies

Despite the emphasis that the Church of Jesus Christ of Latter-day Saints places on scriptures, particularly the Book of Mormon, some members find it difficult to truly love the scriptures. This article claims that by pondering the scriptures often, members can better understand and appreciate the prophetic words. In order to find a deeper love for the scriptures, readers should consider the following details while reading: the setting of a passage; the meaning of various words and phrases; the author’s attitude when he wrote the passage; the possible comparisons between passages; the possible implied messages of the authors; the possible …

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A Mesoamerican System Of Weights And Measures? Did The Ancient Peoples Of Mesoamerica Use A System Of Weights And Scales In Measuring Goods And Their Values?, Journal Of Book Of Mormon Studies Jul 1999

A Mesoamerican System Of Weights And Measures? Did The Ancient Peoples Of Mesoamerica Use A System Of Weights And Scales In Measuring Goods And Their Values?, Journal Of Book Of Mormon Studies

Journal of Book of Mormon Studies

Ancient Mesoamericans used some systems of weights and measures; items in the market, though, were usually sold by volume. The Mesoamerican weights and measures may coincide with the weights and measures described in Alma 11 of the Book of Mormon, but more research is necessary in order to make conclusive claims.

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A Neural Model Of Centered Tri-Gram Speech Recognition, Tony R. Martinez, Dan A. Ventura, D. Randall Wilson, Brian Moncur Jul 1999

A Neural Model Of Centered Tri-Gram Speech Recognition, Tony R. Martinez, Dan A. Ventura, D. Randall Wilson, Brian Moncur

Faculty Publications

A relaxation network model that includes higher order weight connections is introduced. To demonstrate its utility, the model is applied to the speech recognition domain. Traditional speech recognition systems typically consider only that context preceding the word to be recognized. However, intuition suggests that considering both preceding context as well as following context should improve recognition accuracy. The work described here tests this hypothesis by applying the higher order relaxation network to consider both precedes and follows context in speech recognition. The results demonstrate both the general utility of the higher order relaxation network as well as its improvement over …

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The Robustness Of Relaxation Rates In Constraint Satisfaction Networks, Tony R. Martinez, Dan A. Ventura, D. Randall Wilson, Brian Moncur Jul 1999

The Robustness Of Relaxation Rates In Constraint Satisfaction Networks, Tony R. Martinez, Dan A. Ventura, D. Randall Wilson, Brian Moncur

Faculty Publications

Constraint satisfaction networks contain nodes that receive weighted evidence from external sources and/or other nodes. A relaxation process allows the activation of nodes to affect neighboring nodes, which in turn can affect their neighbors, allowing information to travel through a network. When doing discrete updates (as in a software implementation of a relaxation network), a goal net or goal activation can be computed in response to the net input into a node, and a relaxation rate can then be used to determine how fast the node moves from its current value to its goal value. An open question was whether …

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Extending The Power And Capacity Of Constraint Satisfaction Networks, Tony R. Martinez, Xinchuan Zeng Jul 1999

Extending The Power And Capacity Of Constraint Satisfaction Networks, Tony R. Martinez, Xinchuan Zeng

Faculty Publications

This work focuses on improving the Hopfield network for solving optimization problems. Although much work has been done in this area, the performance of the Hopfield network is still not satisfactory in terms of valid convergence and quality of solutions. We address this issue in this work by combing a new activation function (EBA) and a new relaxation procedure (CR) in order to improve the performance of the Hopfield network. Each of EBA and CR has been individually demonstrated capable of substantially improving the performance. The combined approach has been evaluated through 20,000 simulations based on 200 randomly generated city …

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Combining Cross-Validation And Confidence To Measure Fitness, Tony R. Martinez, D. Randall Wilson Jul 1999

Combining Cross-Validation And Confidence To Measure Fitness, Tony R. Martinez, D. Randall Wilson

Faculty Publications

Neural network and machine learning algorithms often have parameters that must be tuned for good performance on a particular task. Leave-one-out cross-validation (LCV) accuracy is often used to measure the fitness of a set of parameter values. However, small changes in parameters often have no effect on LCV accuracy. Many learning algorithms can measure the confidence of a classification decision, but often confidence alone is an inappropriate measure of fitness. This paper proposes a combined measure of Cross- Validation and Confidence (CVC) for obtaining a continuous measure of fitness for sets of parameters in learning algorithms. This paper also proposes …

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Cross Validation And Mlp Architecture Selection, Timothy L. Andersen, Tony R. Martinez Jul 1999

Cross Validation And Mlp Architecture Selection, Timothy L. Andersen, Tony R. Martinez

Faculty Publications

The performance of cross validation (CV) based MLP architecture selection is examined using 14 real world problem domains. When testing many different network architectures the results show that CV is only slightly more likely than random to select the optimal network architecture, and that the strategy of using the simplest available network architecture performs better than CV in this case. Experimental evidence suggests several reasons for the poor performance of CV. In addition, three general strategies which lead to significant increase in the performance of CV are proposed. While this paper focuses on using CV to select the optimal MLP …

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The Little Neuron That Could, Timothy L. Andersen, Tony R. Martinez Jul 1999

The Little Neuron That Could, Timothy L. Andersen, Tony R. Martinez

Faculty Publications

SLPs (single layer perceptrons) oflen exhibit reasonable generalization performance on many problems of interest. However, due to the well known limitations of SLPs very little effort has been made to improve their performance. This paper proposes a method for improving the performance of SLPs called "wagging" (weight averaging). This method involves training several different SLPs on the same training data, and then averaging their weights to obtain a single SLP. The performance of the wagged SLP is compared with other more complex learning algorithms (bp, c4.5, ibl, MML, etc) on 15 data sets from real world problem domains. Surprisingly, the …

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Minerva Teichert's Manti Temple Murals, Doris R. Dant Jul 1999

Minerva Teichert's Manti Temple Murals, Doris R. Dant

BYU Studies

President Gordon B. Hinckley's initiative to build many more temples around the world underscores how far many Latter-day Saints reside from their sacred buildings. In particular, travel to Utah's pioneer temples is frequently prohibitive. In the spirit of making temples accessible to all Latter-day Saints, this article brings to Saints worldwide an appreciative view of some of the Manti Temple murals.

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A Comparison Of Eclectic Learning And Stagger, J. Cory Barker, Jargalsaihan Batsaihan Jul 1999

A Comparison Of Eclectic Learning And Stagger, J. Cory Barker, Jargalsaihan Batsaihan

Faculty Publications

This project compares two machine-learning methods, Stagger and Eclectic on their classification correctness. Both systems were tested with real-world data sets previously used and tested in other machine learning and statistical literature. The Eclectic System performed better than Stagger on every data set.

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Model Predictive Satisficing Fuzzy Logic Control, Richard L. Frost, Michael A. Goodrich, Wynn C. Stirling Jun 1999

Model Predictive Satisficing Fuzzy Logic Control, Richard L. Frost, Michael A. Goodrich, Wynn C. Stirling

Faculty Publications

Model-predictive control, which is an alternative to conventional optimal control, provides controller solutions to many constrained and nonlinear control problems. However, even when a good model is available, it may be necessary for an expert to specify the relationship between local model predictions and global system performance. We present a satisficing fuzzy logic controller that is based on a receding control horizon, but which employs a fuzzy description of system consequences via model predictions. This controller considers the gains and losses associated with each control action, is compatible with robust design objectives, and permits flexible defuzzifier design. We demonstrate the …

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Multiscale Image Registration Using Scale Trace Correlation, Bruce B. Hansen, Bryan S. Morse Jun 1999

Multiscale Image Registration Using Scale Trace Correlation, Bruce B. Hansen, Bryan S. Morse

Faculty Publications

This paper presents a method for registering images at different magnifications (scales) by treating the problem not only as one of scaling the image coordinates but also as one inherently involving multiresolution information. While some existing methods for multiresolution registration do consider the way the resolution (scale) affects the image, they often consider the image one scale at a time, using geometric properties within that scale. Others use multiscale information, usually to produce more robust results, but only to register same-magnification images (e.g., stereo). A scale trace is the set of values that a single pixel takes on as magnification …

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Toboggan-Based Intelligent Scissors With A Four-Parameter Edge Model, William A. Barrett, Eric N. Mortensen Jun 1999

Toboggan-Based Intelligent Scissors With A Four-Parameter Edge Model, William A. Barrett, Eric N. Mortensen

Faculty Publications

Intelligent Scissors is an interactive image segmentation tool that allows a user to select piece-wise globally optimal contour segments that correspond to a desired object boundary. We present a new and faster method of computing the optimal path by over-segmenting the image using tobogganing and then imposing a weighted planar graph on top of the resulting region boundaries. The resulting region-based graph is many times smaller than the previous pixel-based graph, thus providing faster graph searches and immediate user interaction. Further, tobogganing provides an new systematic and predictable framework for computing edge model parameters, allowing subpixel localization as well as …

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Journal Assessment: A Protocol Analysis For Establishing Criteria For Shared Responsibilities For The Japanese Vernacular Journal Collection, Kazuko Sakaguchi Jun 1999

Journal Assessment: A Protocol Analysis For Establishing Criteria For Shared Responsibilities For The Japanese Vernacular Journal Collection, Kazuko Sakaguchi

Journal of East Asian Libraries

No abstract provided.

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Metallicity Calibration Of A Ddo Cn Index And Other Low-Resolution Indices For G And K Stars, B. J. Taylor May 1999

Metallicity Calibration Of A Ddo Cn Index And Other Low-Resolution Indices For G And K Stars, B. J. Taylor

Faculty Publications

Metallicity calibrations of low-resolution parameters are potentially useful for (at least) two problems: the properties of moving groups, and the supermetallicity problem in K giants. In this paper, metallicity calibrations are derived for six sets of parameters. One of these parameters is the DDO CN index deltaCN. This parameter and three others are calibrated for use with evolved G and K stars. Two additional sets of low-resolution parameters are calibrated for use with G and K dwarfs. The calibrations are derived by comparing the input data with two catalogs of homogenized high-dispersion results from diverse authors (see Taylor 1995, 1999a). …

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The Mean Spherical Approximation For A Dipolar Yukawa Fluid, Douglas Henderson, Dezso Boda, Istvan Szalai, Kwong-Yu Chan May 1999

The Mean Spherical Approximation For A Dipolar Yukawa Fluid, Douglas Henderson, Dezso Boda, Istvan Szalai, Kwong-Yu Chan

Faculty Publications

The dipolar hard sphere fluid (DHSF) is a useful model of a polar fluid. However, the DHSF lacks a vapor–liquid transition due to the formation of chain-like structures. Such chains are not characteristic of real polar fluids. A more realistic model of a polar fluid is obtained by adding a Lennard–Jones potential to the intermolecular potential. Very similar results are obtained by adding a Yukawa potential, instead of the Lennard–Jones potential. We call this fluid the dipolar Yukawa fluid (DYF). We show that an analytical solution of the mean spherical approximation (MSA) can be obtained for the DYF. Thus, the …

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Modes And Quasi-Modes For M = 1,2 In A Gyrokinetic Model For A Non-Neutral Plasma, S. Neil Rasband, Ross L. Spencer May 1999

Modes And Quasi-Modes For M = 1,2 In A Gyrokinetic Model For A Non-Neutral Plasma, S. Neil Rasband, Ross L. Spencer

Faculty Publications

Modes and quasi-modes for m = 1,2 are studied in a gyro-kinetic model for a pure-electron plasma. Only z-independent perturbations are considered. Numerical methods are used to solve the relevant differential equations for smooth, analytic density profiles. Different temperatures and representative profiles are considered and comparison is made with the familiar cold fluid model from which the results depart but little, except at higher temperatures. A continuum component to the spectrum, present in the cold-fluid model, remains in the gyro-kinetic model to the order considered.

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Full Issue Apr 1999

Full Issue

Inscape

No abstract provided.

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Gospel Law And Natural Law: Practicing Psychotherapy In A Spiritual Context, Stephen C. Yanchar, Amy Fisher Smith Apr 1999

Gospel Law And Natural Law: Practicing Psychotherapy In A Spiritual Context, Stephen C. Yanchar, Amy Fisher Smith

Issues in Religion and Psychotherapy

No abstract provided.

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The Nature Of Law: Universal But Not Uniform, Lane Fischer Apr 1999

The Nature Of Law: Universal But Not Uniform, Lane Fischer

Issues in Religion and Psychotherapy

No abstract provided.

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Editor's Note, Joseph Drew Apr 1999

Editor's Note, Joseph Drew

Comparative Civilizations Review

No abstract provided.

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Civilizations As Rhetoric, Ann Hemming Apr 1999

Civilizations As Rhetoric, Ann Hemming

Comparative Civilizations Review

No abstract provided.

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My Life As A Salmon, Tom Johnson Apr 1999

My Life As A Salmon, Tom Johnson

Inscape

No abstract provided.

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On Civilizational Worldview, Part 2, David Richardson Apr 1999

On Civilizational Worldview, Part 2, David Richardson

Comparative Civilizations Review

No abstract provided.

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Interval Matching And Control For Hexahedral Mesh Generation Of Swept Volumes, Jason F. Shepherd Apr 1999

Interval Matching And Control For Hexahedral Mesh Generation Of Swept Volumes, Jason F. Shepherd

Theses and Dissertations

Surface meshing algorithms require certain relationships among the number of intervals on the curves that bound the surface. Assigning the number of intervals to all of the curves in the model such that all relationships are satisfied is called interval assignment. Volume meshing algorithms also require certain relationships among the numbers of intervals on each of the curves on the volume. These relationships are not always captured by surface meshing requirements. This thesis presents a news technique for automatically identifying volume constraints. In this technique, volume constraints are grouped with surface constraints and are solved simultaneously. A sweepable volume has …

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Monte Carlo Study Of The Capacitance Of The Double Layer In A Model Molten Salt, Douglas Henderson, Dezso Boda, Kwong-Yu Chan Mar 1999

Monte Carlo Study Of The Capacitance Of The Double Layer In A Model Molten Salt, Douglas Henderson, Dezso Boda, Kwong-Yu Chan

Faculty Publications

Monte Carlo simulations are reported for charged hard spheres at high density near a charged wall. This system is a simple model for a molten salt double layer. Unfortunately, the reduced temperatures that correspond to experiment are very small. This results in a large Boltzmann factor. As a result, we are unable to obtain meaningful results for such low values and report results only for moderately low values of the reduced temperature. Even so, our results should be a useful benchmark. Further, we are able to give a qualitative answer to an interesting question. We find that at low temperatures …

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Foreign Language Training For Lds Missionaries: Historical Antecedents And Foundations For Current Church Policies And Institutions, Lynn Henrichsen Feb 1999

Foreign Language Training For Lds Missionaries: Historical Antecedents And Foundations For Current Church Policies And Institutions, Lynn Henrichsen

Deseret Language and Linguistic Society Symposium

No abstract provided.

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Philosophy And Early Christianity, Daniel W. Graham, James L. Siebach Jan 1999

Philosophy And Early Christianity, Daniel W. Graham, James L. Siebach

Review of Books on the Book of Mormon 1989–2011

The early church was unable to continue once the apostles had departed. Bishops were only local officials and could not speak for the entire church. Beginning with the later second century, philosophy plays an increasingly important role in the church—this appears to be an effect rather than a cause of the apostasy.

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