Digital Commons Network^™

Few-Cycle Pulses In Two-Level Media, Lee W. Casperson

Electrical and Computer Engineering Faculty Publications and Presentations

Techniques for producing, measuring, and applying ever shorter electromagnetic pulses are being developed for incorporation in a variety of modern high-speed systems. In many cases these pulses are at most a few cycles in length, and so-called half-cycle electromagnetic pulses are also widely employed. The interaction of such pulses with two-level media is considered here in detail, and these media are basic to many of the absorbing and amplifying configurations of optics and laser studies. Significant delays and distortion of the resulting polarization and population pulses can occur, and nonlinear optical effects are also revealed. The limitations of the parity, …

Effectiveness Of Prevention Interventions With Youth At High Risk Of Drug Abuse, Richard F. Catalano, Kevin P. Haggerty, Randy R. Gainey, Marilyn J. Hoppe, Devon D. Brewer

Sociology & Criminal Justice Faculty Publications

A recent report describes three types of prevention programs: universal, selected, and indicated (Institute of Medicine 1994). Universal prevention approaches are those that serve the entire population who share a general risk to the disorder without regard to specific risk status. Selected prevention approaches serve those whose precursors of problem behaviors are elevated but who have not yet manifested the problem behavior to be prevented. Indicated prevention approaches serve those who have initiated the problem behavior to be prevented but have not yet developed a serious or chronic behavior problem and do not warrant at that time a clinical diagnosis …

Institutional Data Book 1997-1998, University Of Minnesota, Morris Office Of Institutional Research

Institutional Effectiveness and Research Reports

No abstract provided.

Κ-To-1 Darboux-Like Functions, Krzysztof Ciesielski

Faculty & Staff Scholarship

We examine the existence of κ-to-1 functions f : R → R in the class of continuous functions, Darboux functions, functions with perfect roads, and functions with the Cantor intermediate value property. In this setting κ denotes a cardinal number (finite or infinite). We also consider different variations on this theme.

Influence Of Growth Conditions, Inversion Domains, And Atomic Hydrogen On Growth Of (0001_) Gan By Molecular Beam Epitaxy, Michelle Richards-Babb

Faculty & Staff Scholarship

Growth of GaN by rf-plasma molecular beam epitaxy leads to different surface morphologiesfor nitrogen-stable growth versus gallium-stable growth. Nitrogen-stable growth produces a granular surface morphology with many samples having a significant density of pyramidal hillocks. In contrast, gallium-stable growth results in a flat surface morphology. The hillocks were directly linked to the presence of inversion domains which originated in the nucleationlayer. Nitrogen-stable growth and growth under atomic hydrogen enhanced the growth rate of inversion domains with respect to the surrounding matrix, while growth under Ga-stable conditions resulted in a more nearly equal growth rate. Evidence is presented suggesting that hydrogen …

Using Complex Variables To Estimate Derivatives Of Real Functions, William Squire, George Trapp

Faculty & Staff Scholarship

A method to approximate derivatives of real functions using complex variables which avoids the subtractive cancellation errors inherent in the classical derivative approximations is described. Numerical examples illustrating the power of the approximation are presented.

The Burdens Of Capability, Jean P. Peterson

Department of Educational Studies Faculty Publications

I once specialized in counseling talented and gifted children. Before that, I taught these students in my high school English classes for many years, and they taught me about themselves through their writings and discussions. Motivated by what I had learned from my most memorably talented students, I began discussion groups for them when I became a "gifted education teacher" in the 1980s. I knew there was a need for affective support. I also knew that educators, coaches, and even parents sometimes forgot that these bright and complex students were more than just potential fulfillers of adults' dreams, more than …

The Wages Of Risk: The Returns Of Contingency Fee Legal Practice, Herbert M. Kritzer

DePaul Law Review

No abstract provided.

Random Fractals And Multifractal Measures, Kenneth E. Sunderland

Theses, Dissertations and Capstones

Much of what we call fractal geometry today can be traced to the critical years around the turn of the 19th/20th century. One of the cracks in what some had considered to be a virtually complete mathematical edifice may have been the publication in 1883 of Georg Cantor's famous "perfect and dense-in-itself' set. This set, a set of points on the real line everywhere dense in itself but nowhere dense on the line, was considered at best paradoxical and at worst monstrous. It challenged standard notions of continuity since Cantor was able to prove that there existed a one-to-one and …

Preparation And Structures Of Crystalline Aromatic Cation-Radical Salts. Triethyloxonium Hexachloroantimonate As A Novel (One-Electron) Oxidant, Rajendra Rathore, A. S. Kumar, Sergey V. Lindeman, Jay K. Kochi

Chemistry Faculty Research and Publications

Triethyloxonium hexachloroantimonate [Et₃O⁺SbCl₆^-] is a selective oxidant of aromatic donors (ArH), and it allows the facile preparation and isolation of crystalline paramagnetic salts [ArH^+•, SbCl₆^-] for the X-ray structure determination of various aromatic cation radicals. The mechanistic relationship between the Meerwein salt [Et₃O⁺SbCl₆^-] and the pure Lewis acid oxidant SbCl₅ is based on a prior ethyl transfer from oxygen to chlorine within the ion pair.

Backlog 1998, Lipscomb University

Backlogs and Other Yearbooks

The 1998 Lipscomb University Backlog yearbook.

Truth And Its Rivals In The Law Of Hearsay And Confrontation (Symposium: Truth And Its Rivals: Evidence Reform And The Goals Of Evidence Law)." , Richard D. Friedman

Articles

In this paper, I will look at the problem of hearsay and confrontation through the lens offered by this symposium's theme of "truth and its rivals." I will ask: To what extent does the law of hearsay and confrontation aspire to achieve the goal of truth in litigation? To what extent does it, or should it, seek to achieve other goals, or to satisfy other constraints on the litigation system? And, given the ends that it seeks to achieve, what should the shape of the law in this area be? My principal conclusions are as follows: In most settings, the …

Inversion Of Plasmaspheric Euv Remote Sensing Data From The Stp 72-1 Satellite, R.R. Meier, A.C. Nicholas, J.M. Picone, D.J. Melendez-Alvira, G. Ganguli, Mark Anthony Reynolds, E.C. Roelof

Publications

Observations of the extreme ultraviolet emission of helium ions at 30.4 nm can be used to study the global shape of the plasmasphere and its dynamical response to geomagnetic forcing. In order to retrieve number densities of plasmaspheric He+ from such observations, we have developed a new inversion technique based on discrete inverse theory, which uses the optical data to optimize a parameterized model of the He+ distribution. We apply this inversion technique to several orbits of data obtained from the Naval Research Laboratory extreme ultraviolet photometric experiment launched on the STP 72-1 satellite in October 1972. The inversion is …

New Technique Of Stereolithography To Local Curing In Thermosensitive Resins Using Co(2) Laser, A. L.J. Munhoz, P. R.S. Wagner, M. C.F. Ierardi, A. E. Kiel, M. A.F. Scarparo, S. D. Allen

Publications

A theoretical and experimental study of thermosensitive resins used in thermal stereolithography is presented. The process of local curing through the application of infrared radiation, which has proved to be useful in a new technique for the making of prototypes by means of selective heating with C02 laser (10.6um), is studied. The ideal composition of the thermosensitive resins has proved to be 10 parts epoxy, 1.4 part diethylene triamine (the curing agent) and 0.7 part silica powder. A physical theoretical model is applied for control of the parameters which influence the confinement of the curing in the irradiated bulk. A …

Our Constitutionalized Adversary System, Monroe H. Freedman

Hofstra Law Faculty Scholarship

In recent years, attacks upon the adversary system have been unprecedented in their breadth and intensity, and at times have been "scathing [and] venomous." For example, at a conference of twenty-five of the country's "professional elite" (most of them lawyers and judges) the adversary system was "thoroughly savaged." Efforts by the conferees to produce an acceptable alternative to the adversary system ended unsuccessfully on a "note of resignation.

It is not coincidental that these attacks on the adversary system have taken place in the context of critical analyses of lawyers' ethics. Critics concerned with the negative aspects of zealous, client- …

Keeping The Wto From Becoming The "World Trans-Science Organization": Scientific Uncertainty, Science Policy, And Factfinding In The Growth Hormones Dispute, Vern R. Walker

Hofstra Law Faculty Scholarship

In Part I of the Article, I analyze the relevant provisions of the SPS Agreement. In that context, I examine the distinction between risk assessment and risk management, as well as the concepts of scientific uncertainty and science policy. Part II sets forth my proposal for how the WTO should review the sanitary measures established by members. The focus of attention is the fact-finding process in dispute settlement proceedings and, in particular, the substantive issues that should come before a panel, the evidence that a panel should consider, and the proper standard and burdens of proof. Finally, in Part III, …

A Family Of Confluent Hypergeometric Distribution., Akbar Ali Zaidi

All ETDs from UAB

No abstract provided.

Alumni Communicator, Winter 1998, Wnec Alumni Association

Alumni Magazines

No abstract provided.

The Relationship Between Study Skills Training And Student Grades And Achievement Test Scores., Kimberly Cushman Fredrick

All ETDs from UAB

No abstract provided.

Wetland Vegetation Monitoring, 1998 Survey: Gnangara Wetlands, N. E. Pettit, R. H. Froend

Research outputs pre 2011

Water regimes, both groundwater and surface water components dil'ectly effect distribution, health and species composition of wetland fringing vegetation. In the area of the northern Swan Coastal Plain overlying the Gnangara groundwater mound, wetland water levels and therefore the vegetation can be intimately connected to underlying groundwater levels. The Water Corporation (formerly Water Authority of Western Australia) has been drawing water from the Gnangara mound for domestic water supply for a number of years. The main objective of this study is to monitor the changes in the vegetation fringing these wetlands and to determine if this is related to changes …

Aiswa Literacy Working Party (Project No.3): A Review Of The Establishment Of Databases For Literacy Achievement, Judith Rivalland, Adrienne Huber

Research outputs pre 2011

Project Three of the AISWA Literacy Research Project reviewed the establishment of databases in Literacy achievement at a systems and schools level with a view to providing resource information for schools. The purpose of Project Three was to provide information to facilitate schools' ability to respond to requests for evidence of literacy achievement. This report begins with a summary of the history of the national, state and territories move to outcomes based learning over the past decade. In 1993, the responsibility for implementing this change was given to the states and territories which has resulted in great variation across Australia. …

Aiswa Literacy Project B P-3 Assessment : Teachers Developing Effective Literacy Assessment Strategies, Judith Rivalland

Research outputs pre 2011

This project originated from recommendations from Phase 1 in the development of the National Literacy Plan for the Association of Independent Schools. These recommendations included the need for a systematic approach to literacy assessment and teaching. The current project aimed to address this situation. The primary purposes of the project were: to explore how teachers can best improve outcomes for children by understanding assessment measures more effectively; to provide time for reflection and discussion about what participating teachers find out from using the assessment procedures; to explore how this knowledge will help teachers select appropriate teaching for all children, particularly …

A Knowledge-Based System For Reliability-Centered Maintenance In The Chemical Industry., Daniel Jesus Fonseca

LSU Historical Dissertations and Theses

An innovative new framework for the implementation of reliability centered maintenance (RCM) in industrial settings was developed and implemented during this study. Fuzzy reasoning algorithms were designed to evaluate and assess the likelihood of equipment failure mode precipitation and aggravation. Furthermore, an alternative to the traditional RCM decision tree for prioritizing equipment failure modes was defined through the development of an approximate reasoning scheme. This priority scheme not only takes into account the relevancy of failure modes on local and product effects, but also their possibility of occurrence, as well as associated negative consequences on adjacent machinery. The new RCM …

Analysis Of Taper-Taper Adhesive-Bonded Joints In Composite Plates Under Tension And Cylindrical Bending., Jack Elwin Helms Jr

LSU Historical Dissertations and Theses

A taper-taper adhesive-bonded joint between two composite plates has been analyzed under tension and cylindrical bending. Two tension models were derived. The first model was based on mechanics of materials and the second model used laminated plate theory and shear correction factors. For the mechanics of materials model the condition of plane strain was assumed for the adherends and adhesive. Average stresses were used in the adherends and point-wise stresses were used in the adhesive. The model derived consisted of four second-order ordinary differential equations with variable coefficients. The adherends were characterized by the extensional Young's modulus. The equations were …

A Universal Parametrization In B-Spline Curve And Surface Interpolation And Its Performance Evaluation., Choong-Gyoo Lim

LSU Historical Dissertations and Theses

The choice of a proper parametrization method is critical in curve and surface fitting using parametric B-splines. Conventional parametrization methods do not work well partly because they are based only on the geometric properties of given data points such as the distances between consecutive data points and the angles between consecutive line segments. The resulting interpolation curves don't look natural and they are often not affine invariant. The conventional parametrization methods don't work well for odd orders k. If a data point is altered, the effect is not limited locally at all with these methods. The localness property with respect …

Physical And Chemical Properties Of Fibers Extracted From Sugarcane And Kenaf Rind., Simona Cristina Romanoschi

LSU Historical Dissertations and Theses

Sugar cane fibers were extracted from the rind of cane stalks with sodium hydroxide (NaOH) solutions of different concentrations, at atmospheric pressure, followed by a steam explosion. The extraction process was optimized using a central rotatable composite design, to study the influence of three reaction parameters (alkaline concentration, time of reaction and frequency of tumbling) on fiber bundle properties (weight, length, and tex). Tex was the objective function, with length as a constraint. Regression analysis indicated a quadratic polynomial response. Bleaching studies were conducted on sugar cane fibers extracted with 1.0N NaOH and on kenaf fibers mechanically processed only. Hydrogen …

Experimental And Theoretical Study Of Dynamic Water Control In Oil Wells., Ephim I. Shirman

LSU Historical Dissertations and Theses

A dynamic water control, dubbed Downhole Water Sink (DWS) technology, is a well completion technique for production of hydrocarbons from reservoirs with bottom aquifer causing water coning. Typically, a DWS well is dually completed with top completion designated mostly for hydrocarbon production and bottom completion used for water drainage and coning control. Positions and flow rates of the completions are the DWS performance parameters to be determined by a process designer. This dissertation presents a theoretical and experimental study of DWS performance for various reservoir conditions and production schedules. A new mathematical model, developed in this work calculates steady state …

Reference Price Effects: The Role Of Multiple Internal Reference Prices And Semantic Cues., Balaji Chandrasekaran Krishnan

LSU Historical Dissertations and Theses

The purpose of this dissertation is two fold. The first objective is to assess the effect of price promotion on consumers' evaluation of the value of the deal independent of the specific IRP used by consumers. Towards this end, a subjective measure called "perceived fairness of the offer price" is introduced in a model hypothesizing relations among transaction utility, acquisition utility, and perceived value of the deal. The proposed model was compared to an existing model designed to predict and explain perceived value of the deal using a survey-based methodology, in the first study. Results indicate that the proposed model …

Considering Outcomes Beyond Achievement: Student Participation As An Indicator Of High School Performance., Susan Elizabeth Kochan-Teddlie

LSU Historical Dissertations and Theses

This dissertation is the product of a three-phase exploratory study that utilized both quantitative and qualitative methods in order to develop and test a composite indicator of high school performance that measures the degree to which high schools strike a balance between the press for academic excellence and the need to sustain all students--even the most marginal--on to high school completion. In Phase I, undaunted and relative performance indicators (UPIs and RPIs) of student achievement and participation were calculated for a statewide sample of 308 schools whose grade configurations included grades 9-12. The achievement scores were composites of student performance …

Multilocation Inventory Systems With Centralized Information., Jianxin Hu

LSU Historical Dissertations and Theses

The management of multi-echelon inventory systems has been both an important and challenging research area for many years. The rapid advance in information technology and the emphasis on integrated supply chain management have new implications for the successful operation of distribution systems. This research focuses on the study of some fundamental issues related to the operation of a multilocation inventory system with centralized information. First, we do a comparative analysis to evaluate the overall performance of individual versus centralized ordering policies for a multi-store distribution system where centralized information is available. This study integrates the existing research and clarifies one …