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An Empirical Test Of The Rational Actor Theory Of Litigation, Donald R. Songer, Charles M. Cameron, Jeffrey A. Segal Nov 1995

An Empirical Test Of The Rational Actor Theory Of Litigation, Donald R. Songer, Charles M. Cameron, Jeffrey A. Segal

Faculty Publications

This article examines the decisions of litigants in criminal cases to appeal decisions from the U.S. Courts of Appeals to the U.S. Supreme Court. Using a random sample of search and seizure cases from 1962 through 1990 and a measure of the likelihood that the appeals court decision will be reversed if cert is granted, we demonstrate that litigants behave as if they rationally consider costs and benefits in their decisions to appeal. Given the extraordinary number of cases decided by lower federal courts vis-g-vis the number of cases the Supreme Court can decide, we argue that such behavior is …

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Integrating Reconstructed Scatterometer And Advanced Very High Resolution Radiometer Data For Tropical Forest Inventory, David G. Long, Perry J. Hardin Nov 1995

Integrating Reconstructed Scatterometer And Advanced Very High Resolution Radiometer Data For Tropical Forest Inventory, David G. Long, Perry J. Hardin

Faculty Publications

A scientific effort is currently underway to assess tropical forest degradation and its potential impact on Earth's climate. Because of the large continental regions involved, Advanced Very High Resolution Radiometer (AVHRR) imagery and its derivative vegetation index products with resolutions between 1 and 12 km are typically used to inventory the Earth's equatorial vegetation. Archival AVHRR imagery is also used to obtain a temporal baseline of historical forest extent. Recently however, 50-km Seasat-A Scatterometer (SASS) Ku-band imagery (acquired in 1978) has been reconstructed to = 4-km resolution, making it a supplement to AVHRR imagery for historical vegetation assessment. In order …

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An Historical Critique Of The Emergence And Evolution Of Ernesto Che Guevara's Foco Theory, Matt D. Childs Oct 1995

An Historical Critique Of The Emergence And Evolution Of Ernesto Che Guevara's Foco Theory, Matt D. Childs

Faculty Publications

This article provides an analysis of Ernesto Che Guevara's theory of guerrilla warfare, the foco. The numerous changes to the originalfoco thesis, as presented in Guerrilla Warfare (1960), are examined in detail covering two dozen articles, speeches, essays, interviews and books authored by Guevara, Castro and Debray while stressing their relation to national and international politics. The author argues that there was an apparent discourse between Cuban politics and the numerous changes in Guevara's writings. Juxtaposing changes to the foco theory from 1960 to 1967, to Cuban historical events, reflects the political expedience of the 196os and the primary …

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Assessing Fundamental Power Differences In Exchange Networks: Iterative Gpi, Michael J. Lovaglia, John Skvoretz, Barry N. Markovsky, David Willer Oct 1995

Assessing Fundamental Power Differences In Exchange Networks: Iterative Gpi, Michael J. Lovaglia, John Skvoretz, Barry N. Markovsky, David Willer

Faculty Publications

Networks have been discovered for which Network Exchange Theory (NET Markovsky, Willer and Patton 1988; Lovaglia, Skvoretz, Willer and Markovsky 1995) fails to provide tenable predictions. Here we elaborate NET to create a more general method. We show not only when and where exchange networks break into simpler substructures, but propose rules to decisively classify networks and substructures as strong, weak, or equal power. In doing so, we advance general heuristics for power development in exchange networks and demonstrate the promise of an approach using reciprocal comparison of general heuristics, formal theory, and computer simulation.

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An Adaptive Learning Model Which Accommodates Asymmetric Error Costs And Choice-Based Samples, James V. Hansen, James B. Mcdonald, Rayman D. Meservy Oct 1995

An Adaptive Learning Model Which Accommodates Asymmetric Error Costs And Choice-Based Samples, James V. Hansen, James B. Mcdonald, Rayman D. Meservy

Faculty Publications

This paper introduces an adaptive-learning model, EGB2, which optimizes over a parameter space to fit data to a family of models based on maximum-likelihood criteria. We also show how EGB2 can be modified to handle asymmetric costs of Type I and Type II errors, thereby minimizing misclassification costs. It has been shown that standard methods of computing maximum-likelihood estimators of qualitative-response models are generally inconsistent when applied to sample data with different proportions than found in the universe from which the sample is drawn. We investigate how a choice estimator, based on weighting each observation's contribution to the log-likelihood function, …

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A Provably Convergent Dynamic Training Method For Multi-Layer Perceptron Networks, Timothy L. Andersen, Tony R. Martinez Sep 1995

A Provably Convergent Dynamic Training Method For Multi-Layer Perceptron Networks, Timothy L. Andersen, Tony R. Martinez

Faculty Publications

This paper presents a new method for training multi-layer perceptron networks called DMP1 (Dynamic Multilayer Perceptron 1). The method is based upon a divide and conquer approach which builds networks in the form of binary trees, dynamically allocating nodes and layers as needed. The individual nodes of the network are trained using a genetic algorithm. The method is capable of handling real-valued inputs and a proof is given concerning its convergence properties of the basic model. Simulation results show that DMP1 performs favorably in comparison with other learning algorithms.

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A Pixel Scale Digital-To-Analog Converter Array For Liquid Crystal On Vlsi Displays, Gregory P. Nordin, S. T. Kowel, J. H. Kulick, R. G. Lindquist, P. J. Nasiatka, A. Thomsen Sep 1995

A Pixel Scale Digital-To-Analog Converter Array For Liquid Crystal On Vlsi Displays, Gregory P. Nordin, S. T. Kowel, J. H. Kulick, R. G. Lindquist, P. J. Nasiatka, A. Thomsen

Faculty Publications

A pixel scale digital to analog converter and driver for liquid crystal (LC) cells is presented. The circuit is a compact CMOS logic gate that sums pulse density modulation (pdm) signals. Low pass filtering of the pdm signal is 'done by the LC material. The circuit is suitable to implement large arrays of converters as, for example, in display applications. It is applicable in LC on silicon displays where gray scale data are stored and converted at each pixel site. Advantages over the commonly used active matrix technology include the removal of all analog circuitry, no need for refresh, reduced …

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An Integrated Framework For Learning And Reasoning, Christophe G. Giraud-Carrier, Tony R. Martinez Aug 1995

An Integrated Framework For Learning And Reasoning, Christophe G. Giraud-Carrier, Tony R. Martinez

Faculty Publications

Learning and reasoning are both aspects of what is considered to be intelligence. Their studies within AI have been separated historically, learning being the topic of machine learning and neural networks, and reasoning falling under classical (or symbolic) AI. However, learning and reasoning are in many ways interdependent. This paper discusses the nature of some of these interdependencies and proposes a general framework called FLARE, that combines inductive learning using prior knowledge together with reasoning in a propositional setting. Several examples that test the framework are presented, including classical induction, many important reasoning protocols and two simple expert systems.

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Electromagnetic Boundary Conditions And Differential Forms, Karl F. Warnick, Richard H. Selfridge, David V. Arnold Aug 1995

Electromagnetic Boundary Conditions And Differential Forms, Karl F. Warnick, Richard H. Selfridge, David V. Arnold

Faculty Publications

A new representation for electromagnetic boundary conditions involving a boundary projection operator defined using the interior and exterior products of the calculus of differential forms is developed. This operator expresses boundary conditions for fields represented by differential forms of arbitrary degree. With vector analysis, the field intensity boundary conditions require the cross product, whereas the flux boundary conditions use the inner product. With differential forms, the field intensity and flux density boundary conditions are expressed using a single operator. This boundary projection operator is readily applied in practice, so that this work extends the utility of the calculus of differential …

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Latin American Urbanization: Historical Profiles Of Major Cities, By Gerard Michael Greenfield, Michael C. Scardaville Aug 1995

Latin American Urbanization: Historical Profiles Of Major Cities, By Gerard Michael Greenfield, Michael C. Scardaville

Faculty Publications

A review of Latin American Urbanization: Historical Profiles of Major Cities, by Gerard Michael Greenfield

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Islam, The People And The State: Essays On Political Ideas And Movements In The Middle East, By Sami Zubaida, Shahrough Akhavi Aug 1995

Islam, The People And The State: Essays On Political Ideas And Movements In The Middle East, By Sami Zubaida, Shahrough Akhavi

Faculty Publications

No abstract provided.

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Surface Intersection Loop Destruction, Thomas W. Sederberg, Alan K. Zundel Jul 1995

Surface Intersection Loop Destruction, Thomas W. Sederberg, Alan K. Zundel

Faculty Publications

The intersection curve between two surface patches consists of one or more connected components or branches. Each component can be classified as either an open branch, with endpoints on at least one patch boundary, or as a closed loop.

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Kings And Counselors: The Politics Of Francis Bacon's Rhetorical Theory, Christopher Holcomb Jul 1995

Kings And Counselors: The Politics Of Francis Bacon's Rhetorical Theory, Christopher Holcomb

Faculty Publications

English author Francis Bacon's letters to the courtiers of King James VI before the monarch succeeded Elizabeth I reveals his concept of rhetoric as a tool for political advancement. Bacon wrote several letters to gain the king's confidence, in which he expressed his intent to portray the king in the most positive light to his subjects once he enters England and assumes the throne. The letters are remarkable in the way they suggest that Bacon can create a persona for the king through the power of rhetoric, since Bacon includes the draft of a speech which he hoped would be …

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Attention To Candidates And Issues In Newspaper Coverage Of 1992 Presidential Campaign, Gordon Mantler, David Whiteman Jul 1995

Attention To Candidates And Issues In Newspaper Coverage Of 1992 Presidential Campaign, Gordon Mantler, David Whiteman

Faculty Publications

No abstract provided.

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Critique Of Current Congressional Capital Gains Contentions, John W. Lee Jul 1995

Critique Of Current Congressional Capital Gains Contentions, John W. Lee

Faculty Publications

No abstract provided.

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Numerical Calculation Of Axisymmetric Electrostatic Modes For Cold Finite-Length Non-Neutral Plasmas, Johnny K. Jennings, Ross L. Spencer, K. C. Hansen Jul 1995

Numerical Calculation Of Axisymmetric Electrostatic Modes For Cold Finite-Length Non-Neutral Plasmas, Johnny K. Jennings, Ross L. Spencer, K. C. Hansen

Faculty Publications

A numerical calculation of mode frequencies for cold, non-neutral plasmas is reported. The numerical method can be applied to any axisymmetric plasma shape in a trap. Here, it is used to study axisymmetric electrostatic modes in a long conducting cylinder. These modes were previously studied by Prasad and O'Neil [Phys. Fluids 26, 665 (1983)] and by Dubin [Phys. Rev. Lett. 66, 2076 (1991)]. In contrast to Dubin's calculation, the effects of a nearby cylindrical wall, including its influence on the shape of the plasma equilibrium, are considered. It is found that for plasmas with aspect ratios (length divided by diameter) …

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A Revision Of The Dyadic Adjustment Scale For Use With Distressed And Nondistressed Couples: Construct Hierarchy And Multidimensional Scales, Dean M. Busby, Clark Christensen, D. Russell Crane, Jeffry H. Larson Jul 1995

A Revision Of The Dyadic Adjustment Scale For Use With Distressed And Nondistressed Couples: Construct Hierarchy And Multidimensional Scales, Dean M. Busby, Clark Christensen, D. Russell Crane, Jeffry H. Larson

Faculty Publications

A study of the effectiveness of the Dyadic Adjustment Scale, commonly used as an instrument for measuring adjustment in relationships, is presented. A revised scale is proposed.

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Relationship Lending And Lines Of Credit In Small Firm Finance, Allen N. Berger, Gregory F. Udell Jul 1995

Relationship Lending And Lines Of Credit In Small Firm Finance, Allen N. Berger, Gregory F. Udell

Faculty Publications

This article examines the role of relationship lending in small firm finance. It examines price and nonprice terms of bank lines of credit (L/Cs) extended to small firms. The focus on LICs allows the examination of a type of loan contract in which the hank- borrower relationship is likely to be an important mechanism for solving the asymmetric information problems associated with financing small enterprises. We find that borrowers with longer banking relationships pay lower interest rates and are less likely to pledge collateral.These results are consistent with theoretical arguments that relationship lending generates valuable information about borrower quality.

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Liquid Crystal-On-Silicon Implementation Of The Partial Pixel Three-Dimensional Display Architecture, M. W. Jones, Gregory P. Nordin, M. Friends, S. T. Kowel, J. H. Kulick, R. G. Lindquist, P. J. Nasiatka Jul 1995

Liquid Crystal-On-Silicon Implementation Of The Partial Pixel Three-Dimensional Display Architecture, M. W. Jones, Gregory P. Nordin, M. Friends, S. T. Kowel, J. H. Kulick, R. G. Lindquist, P. J. Nasiatka

Faculty Publications

We report the implementation of a liquid crystal-on-silicon, three-dimensional 13-D2 diffractive display based on the partial pixel architecture. The display generates multiple stereoscopic images that are perceived as a static 3-D scene with one-dimensional motion parallax in a manner that is functionally equivalent to a holographic stereogram. The images are created with diffraction gratings formed in a thin liquid crystal layer by fringing electric fields from transparent indium tin oxide interdigitated electrodes. The electrodes are controlled by an external drive signal that permits the 3-D scene to be turned on and off. The display has a contrast ratio of 5.8, …

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Real-Time Three-Dimensional Display Based On The Partial Pixel Architecture, Gregory P. Nordin, M. W. Jones, S. T. Kowel, J. H. Kulick, R. G. Lindquist Jun 1995

Real-Time Three-Dimensional Display Based On The Partial Pixel Architecture, Gregory P. Nordin, M. W. Jones, S. T. Kowel, J. H. Kulick, R. G. Lindquist

Faculty Publications

We previously reported several static three-dimensional (3-D) display implementations of the partial pixel architecture [J. Opt. Soc. Am. A 12, 73 (1995)]. We report herein our f irst real-time 3-D display based on this architecture. The display is functionally equivalent to a real-time holographic stereogram. It is autostereoscopic and provides horizontal motion parallax. The display device is composed of a diffractive optical element (fabricated with standard photolithographic techniques) and a separate conventional liquidcrystal display. The display has been used to play back a precomputed animated 3-D scene at video frame rates using a standard VGA video output.

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Empire And Social-Reform, British Liberals And The Civilizing Mission In The Sugar Colonies, 1868-1874, James Patterson Smith Jun 1995

Empire And Social-Reform, British Liberals And The Civilizing Mission In The Sugar Colonies, 1868-1874, James Patterson Smith

Faculty Publications

No abstract provided.

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On The Equivalence Of Certain Consequences Of The Proper Forcing Axiom, Peter Nyikos, Leszek Piatkiwicz Jun 1995

On The Equivalence Of Certain Consequences Of The Proper Forcing Axiom, Peter Nyikos, Leszek Piatkiwicz

Faculty Publications

No abstract provided.

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Hodographs And Normals Of Rational Curves And Surfaces, Thomas W. Sederberg, Takafumi Saito, Guo-Jin Wang Jun 1995

Hodographs And Normals Of Rational Curves And Surfaces, Thomas W. Sederberg, Takafumi Saito, Guo-Jin Wang

Faculty Publications

Derivatives and normals of rational Bézier curves and surface patches are discussed. A non-uniformly scaled hodograph of a degree m x n tensor-product rational surface, which provides correct derivative direction but not magnitude, can be written as a degree (2m - 2) x 2n or 2m x (2n - 2) vector function in polynomial Bézier form. Likewise, the scaled normal direction is degree (3m - 2) x(3n - 2). Efficient methods are developed for bounding these directions and the derivative magnitude.

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Stomatal Characterization Of Grass Leaves By Four Preparation Techniques, Val J. Anderson, John S. Gardner, Joyce Phillips Hardy Jun 1995

Stomatal Characterization Of Grass Leaves By Four Preparation Techniques, Val J. Anderson, John S. Gardner, Joyce Phillips Hardy

Faculty Publications

Four leaf preparation techniques (air drying, tetramethylsilane air drying, critical point drying, and freeze substitution) used in scanning electron microscopy (SEM) were evaluated with respect to the degree of cellular distortion they produce in stomatal guard cells of leaves of Dactylis glomerata and Elymus canadensis. Surface morphological distortion and cuticle disruption in the air-dried and tetramethylsilane air-dried leaves, and cuticle disruption within the critical point-dried tissue made it difficult to obtain measurements.The freeze-substituted tissue experienced little cuticle disturbance, and the cellular morphology appeared normal. The length of the guard cells did not significantly differ between the air-dried, tetramethylsilane air-dried, critical …

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Capital Gains Myths, John W. Lee May 1995

Capital Gains Myths, John W. Lee

Faculty Publications

This article is a summary of parts of Lee's forthcoming article "Critique of Current Congressional Capital Gains Contentions," 15 Va. Tax. L. Rev. 1 (1995). Professor Lee believes that the reasons given by the House Ways and Means Committee Report and capital gains cuts proponents in the recent hearings and the House floor debate in support of the CWATRA 50-percent individual generic capital gains cut are untrue in whole or in part. These stated reasons, reports Lee, are that a capital gains cut will (1) increase the personal savings rate, (2) encourage risk taking by entrepreneurs seeking new technologies and …

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On The Verge Of The Millennium: A History Of The Interpretation Of Revelation, Craig R. Koester Apr 1995

On The Verge Of The Millennium: A History Of The Interpretation Of Revelation, Craig R. Koester

Faculty Publications

The power of a book can be seen in its effects, and few books have had more dramatic effects than Revelation. Attempts to control the effects of the book by ignoring it or dismissing it have not been successful; Revela- tion’s secrets are too alluring. We do better to consider the effects the book has had on Christians over the centuries and to let this history of influence help shape a way to read the book that is both faithful and compelling.

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Professional Books -- Competence, Courage, And Change: An Approach To Family Therapy By D. B. Waters And E. C. Lawrence, Dean M. Busby Apr 1995

Professional Books -- Competence, Courage, And Change: An Approach To Family Therapy By D. B. Waters And E. C. Lawrence, Dean M. Busby

Faculty Publications

In this book Waters and Lawrence present a model of family therapy that is refreshing and informative. They use principles from strength-focused paradigms without ignoring pathology. They call this emphasis "healthy intentions, unhealthy outcomes." In an innovative way Waters and Lawrence help clients uncover the competent strivings underlying pathological behaviors. Once these strivings are uncovered, the therapist and client can work together to find effective ways of reaching goals without engaging in destructive behaviors. Rather than ignore pathology and thereby negate clients' experiences, or overemphasize pathology and remove hope, the authors use pathology as the vehicle to understand the inner …

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A Reverse Isoperimetric Inequality, Stability And Extremal Theorems For Plane-Curves With Bounded Curvature, Ralph Howard, Andrejs Treibergs Apr 1995

A Reverse Isoperimetric Inequality, Stability And Extremal Theorems For Plane-Curves With Bounded Curvature, Ralph Howard, Andrejs Treibergs

Faculty Publications

No abstract provided.

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Premarital Sexual Coercion: Treatment Issues For Family Therapists, Kyle D. Killian, Dean M. Busby Apr 1995

Premarital Sexual Coercion: Treatment Issues For Family Therapists, Kyle D. Killian, Dean M. Busby

Faculty Publications

Premarital sexual coercion is defined as nonconsensual sexual activity between two persons who are not married to each other but who are involved in an intimate relationship with one another. Factors and consequences associated with premarital sexual coercion are presented, and three possible clinical scenarios are discussed.

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Pulse Width Modulation Drive Technique For High Resolution Liquid Crystal Gratings, Gregory P. Nordin, S. T. Kowel, J. H. Kulick, R. G. Lindquist, P. J. Nasiatka, A. Thomsen Mar 1995

Pulse Width Modulation Drive Technique For High Resolution Liquid Crystal Gratings, Gregory P. Nordin, S. T. Kowel, J. H. Kulick, R. G. Lindquist, P. J. Nasiatka, A. Thomsen

Faculty Publications

We report the use of a pulse-width modulation drive technique for high-resolution liquid-crystal gratings and show how the grating diffraction efficiency depends on the duty cycle of the drive signal. We identify a regime in which the diffraction efficiency is linearly proportional to the duty cycle, thereby providing a linear drive characteristic.

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