Digital Commons Network^™

Results Of Investigations Into The Groundwater Response And Productivity Of High Water Use Agricultural Systems 1990-1997 : 6. Summary Of All Sites, A D. Smith, Richard J. George Dr, P R. Scott, D L. Bennett, R J. Rippon, G J. Orr, Peter J. Tille

Resource management technical reports

The south-western Woolbelt receives annual rainfall between 500-700 mm with long dry summers and cool wet winters. The dominant land use is grazing of Merino sheep for wool productiion, with smaller areas (5-15%) of cropping. All of the catchments selected were affected by salinity, but the extent and severity varied. In all catchments the location of the major expression of salinity was the valley floor.

Facilitative Government: An Experiment In Federal Restraint, Brian J. Pinkowski

Natural Resources Journal

No abstract provided.

7. Thermal Diagenesis Of Cretaceous Sediment Recovered At The Cote D’Ivoire – Ghana Transform Margin, Mary Anne Holmes

Department of Earth and Atmospheric Sciences: Faculty Publications

The early opening of the South Atlantic ocean along the eastern Romanche Fracture Zone, including an initial phase of transform faulting and pull-apart basin formation, followed by the generation of a seafloor spreading center, was investigated during Ocean Drilling Program Leg 159 to the Côte d’Ivoire-Ghana continental margin. Clay minerals in the <0.5-μm fraction of tectonically disturbed sediment recovered during this leg were analyzed by X-ray diffraction to determine the extent of thermal diagenesis caused by the passing of the South Atlantic spreading center along this transform margin, and to date the passing. Results from Sites 959-961 reveal mild thermal alteration of clays, to paleotemperatures of 120°–170°C, in older, mostly undated sediment, in response to an elevated paleogeothermal gradient, as indicated by the absence of randomly interstratified illite/smectite group clays (R = 0 I/S clay), and the presence of dominant regularly interstratified (R = 1) I/S clay. Thermally altered sediment at these sites underlie unaltered sediment with likely erosional contacts. Based on a date of nannofossil biozone CC9b for the oldest unaltered sediment at Site 959, the thermal event there must have been pre-CC9b.
At Site 962, drilled on a minor marginal ridge to the west of Sites 959–961, heat has altered clay in basal sediment to R = 1 I/S, and the transition uphole to thermally unaltered sediment, bearing R = 0 I/S clay, was recovered over a 175-m-thick interval, indicating …

University Reporter - Vol. 02, No. 05 - January 1998 - Calendar Of Events, University Of Massachusetts Boston

1996-2009, University Reporter

No abstract provided.

Insights- July 1998, University Relations Staff

Insights

No abstract provided.

Northeastern News- Winter 1998, Lisa D. Cooper

NEIU News

No abstract provided.

Teaching Law Students Through Individual Learning Styles, Robin A. Boyle, Rita Dunn

Faculty Publications

(Excerpt)

Teaching can be rewarding, but it can also be frustrating when some students fail to grasp the material. Professor Robin A. Boyle of St. John’s University School of Law has been teaching Legal Research and Writing in small sections of approximately twenty to thirty students for four years. She, like many of her similarly exasperated colleagues, has repeated the same course content by using either lecture or collaborative learning, and has observed some students doing well, whereas others continued to perform poorly. Then, Dr. Rita Dunn was introduced to the law school faculty and suggested that law professors incorporate …

Cover And Contents

Turkish Journal of Earth Sciences

No abstract provided.

Testing The Dark Matter Hypothesis With Low Surface Brightness Galaxies And Other Evidence, Stacy S. Mcgaugh

Faculty Scholarship

The severity of the mass discrepancy in spiral galaxies is strongly correlated with the central surface brightness of their disks. Progressively lower surface brightness galaxies have ever larger mass discrepancies. No other parameter (luminosity, size, velocity, morphology) is so well correlated with the magnitude of the mass deficit. The rotation curves of low surface brightness disks thus provide a unique data set with which to probe the dark matter distribution in galaxies. The mass discrepancy is apparent from R = 0, giving a nearly direct map of the halo mass distribution. The luminous mass is insignificant. Interpreting the data in …

Tilted Photoalignment Of A Nematic Liquid Crystal Induced By A Magnetic Field, Charles Rosenblatt, Rolfe G. Petschek

Faculty Scholarship

Nematic liquid crystal cells with polyvinyl cinnamate coated substrates were subjected to ultraviolet light. When this was done in the presence of an oblique magnetic field the photoalignment was found to be temporally and thermally robust, with a large pretilt angle and weak polar anchoring. Moreover, two easy axes with equal and opposite pretilt angle were obtained, such that a magnetic field could switch the director from one easy axis to the other.

Nonlinear Modeling Of Concrete-Filled Frp Tubes Using The Finite Element Method, Kenneth T. Zagers

Retrospective Theses and Dissertations

Fiber reinforced plastic (FRP) has in recent years emerged as an alternative reinforcement for structural concrete. The properties that make FRP appealing to the construction industry include its resistance to electro-chemical corrosion, high strength-to-weight ratio, and electrical insulation. An efficient use of FRP is in the form of concrete-filled tubes, where the tube not only protects the concrete against environmental factors, but also provides confinement and external reinforcement. Since use of fiber composites for confining concrete is relatively new, analytical work in this area is limited to the models that were originally developed for transverse steel reinforcement. However, it has …

Hitler At Lidice| Language, Revenge, And Social Pathology In Warfare, Stephen Donald Carey

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

A Hybrid System For Well Test Analysis, Edward A. May, Cihan H. Dagli

Engineering Management and Systems Engineering Faculty Research & Creative Works

Petroleum well test analysis is a tool for estimating the average properties of the reservoir rock. It is a classic example of an inverse problem. Visual examination of the pressure response of the reservoir to an induced flow rate change at a well allows the experienced analyst to determine the most appropriate model from a library of generalized analytical solutions. Rock properties are determined by finding the model parameters that best fit the observed data. This paper describes a framework for hybrid network to assist the analyst in selecting the appropriate model and determining the solution. The hybrid network design …

An Object-Based Evolutionary Algorithm: The Nesting Solution, Kanchitpol Ratanapan, Cihan H. Dagli

Engineering Management and Systems Engineering Faculty Research & Creative Works

The nesting problems have received considerable attention and have been addressed by a variety of algorithms. Recently, evolutionary algorithms have been adopted for solutions. Most of these algorithms, however, require a search in one-dimensional space; thus a transformation of the problem to a single dimension, as in the sequencing problems, is needed. Unfortunately, this restricts the search space. In this study an object-based evolutionary algorithm for the nesting problems is proposed. The methodology is created in a true two-dimensional space, allowing object-based mechanisms and object-based evolutionary operators to perform effectively on the space without restricting search alternatives. Implementation of the …

A Robust Unit Commitment Algorithm For Hydro-Thermal Optimization, Chao-An Li, R. B. Johnson, A. J. Svoboda, Chung-Li Tseng, E. Hsu

Engineering Management and Systems Engineering Faculty Research & Creative Works

This paper presents a unit commitment algorithm which combines the Lagrangian relaxation (LR), sequential unit commitment (SUC), and optimal unit decommitment (UD) methods to solve a general hydro-thermal optimization (HTO) problem. We argue that this approach retains the advantages of the LR method while addressing the method''s observed weaknesses to improve overall algorithm performance and quality of solution. The proposed approach has been implemented in a version of PG&E''s HTO program, and test results are presented.

Evaluation Of Subdivision Methods Used In Octree Ray Tracing Algorithms, Scott Brown

Theses

The non-uniform spatial subdivision technique refined by Andrew Glassner [Glassner 1984] minimizes facet intersection tests (i) by automatically generating a density dependent spatial hierarchy of facet regions (called an octree) and (ii) by only testing facets in regions along the path of the ray. Past research has addressed optimization of the octree ray tracing process by separately improving both the octree traversal method and facet intersection algorithms. This author attempted to further improve the overall approach by attempting to identify new octree construction methods that would decrease the number of traversals required to render the scene. This research focused on …

Theory And Research In Social Education, Volume 26, No. 3, Summer 1998, E. Wayne Ross

Theory and Research in Social Education

No abstract provided.

A Structural Analysis Of The Information Problem Solving Strategies Of Selected Home Schooled Students, Jacquelyn M. Stoakes

Graduate Research Papers

This research investigated the information problem solving curriculum of home schooled students who lived in four central Iowa school districts, all of whom belonged to the same home school networking group. Fourteen home schooling parents were interviewed, and asked to respond to questions dealing with the research process, and how those skills were being taught, the major focus being on whether the skills were taught as part of the curriculum, or in supplement to it, and whether information problem solving was taught as a process or separately as content. Use of electronic searching was also investigated.

This study indicated that …

The Movement Toward Authentic Assessment And The Role Of Technology, Brenda L. Clark

Graduate Research Papers

Assessment can be defined as the process of collecting evidence of what a student knows and is able to do. There are several types of assessment available for use. The list includes, but is not limited to, standardized tests, performance based assessment and portfolios. All of these have both positive and negative aspects to evaluating student learning.

Effective Uses Of Technology In The Classroom, Sherrie Kopecky

Graduate Research Papers

Research Questions: How is technology being effectively used in the elementary, middle, and high schools both by the teachers and the students? What are some effective pieces of software students are utilizing in their learning? What is the best way to integrate technology into the curriculum?

What Does Educational Technology Mean In The Promotion Of Student Achievement : A Literature Review, Fongching Lee

Graduate Research Papers

Research indicates that educational technology has a valued status, especially in the promotion of student learning. The theory behind the study of educational technology includes the four paradigms defined by Saettler (1990): the media view, the communications and systems view, the behavioral sciences view, and the cognitive science concept. This theory serves as the basis for the implementation of educational technology by the teachers.

Implementing educational technology, in special education and regular education (k-12), has indicated positive influences on student achievement. Greater student achievement would translate to better worker-citizens for the United States, thereby allowing the country to be competitive …

Underachievement In Gifted Students, Deborah Langenderfer Nagle

Graduate Research Papers

This study reflected on literature concerning gifted students who underachieve in school. Its purpose was to review the literature to examine the various definitions of underachievement, the characteristics of gifted underachievers, the risk factors for underachievement related to gifted students and the existence of promising interventions to ameliorate underachievement. The writer concluded that underachievement is a discrepancy related to performance behaviors that can be changed. She found that positive change can best be accomplished by the use of individualized interventions involving both the school and the family.

Integrated Humanities: A Content Model For Senior High School Gifted, Jolene Kay Teske

Graduate Research Papers

The purpose of this project was to develop an integrated humanities content model for senior high school gifted students. It began as a vision and has developed into a clear content model that will be piloted at the writer's school in the fall of 1999. Through the literature review and working revisions, the writer has become convinced that this type of model is one viable and defensible option for programming for intellectually gifted students at the senior high school level.

Assessing Culturally And Linguistically Diverse Stuents : A Discussion For Professionals In The Schools, Candace Kist-Tahmasian

Graduate Research Papers

This paper is intended for professional school psychologists, school social workers, consultants in special education and other professionals involved in assessment issues in the schools. It is necessary for school professionals to have an understanding of the general socio-political context which surrounds the issues involved in language and culture to better assess the mental/cognitive abilities of language minority students through the dominant language and culture.

It is beyond the scope of this paper to present such issues in their entirety. Therefore, the focus of this paper will center on "voluntary minorities", specifically those who are learning English as a second …

Interventions For Children With Attention Deficit Hyperactivity Disorder, Justin M. Larson

Graduate Research Papers

Attention Deficit Hyperactivity Disorder (ADHD) continues to be widely studied within the literature and researchers continue to investigate interventions and environments which allow for success. Whalen and Renker (1991) argue that multiple intervention methods are needed for success of children and adolescents in social situations. The purpose of this paper is to review the literature, and review interventions used to facilitate appropriate behaviors in children, aged six to eleven, with a diagnosis of attention deficit hyperactivity disorder.

Extrinsic Rewards And Their Subsequent Effects On Student Intrinsic Motivation, Anne-Grete Kaldahl Miller

Graduate Research Papers

This paper reviews the current literature on the advantages and disadvantages of the use of different extrinsic rewards and their impact on student intrinsic motivation. A review of literature will address three central questions: 1.What are the advantages of extrinsic rewards? 2.What are the disadvantages of extrinsic rewards? 3.What are the special conditions under which external rewards impact intrinsic motivation?

Everything You Always Wanted To Know About Judges But Were Afraid To Ask, Alexander M. Sanders Jr.

South Carolina Law Review

No abstract provided.

Navigational Fuzzy Logic Control Of An Autonomous Vehicle, Neil Eugene Hodge

UNLV Retrospective Theses & Dissertations

The control of an autonomous passenger vehicle to reach a target amid static and dynamic obstacles is presented. To accommodate various model and environmental uncertainties, fuzzy logic is used in designing the vehicle's controller. The controller evaluates sensor information and outputs signals to change the vehicle's steering and throttle angles. To emulate human behavior, the controller is divided into separate modules. Each module deals with a specific navigational problem such as target steering, target throttle control, cornering throttle control, collision avoidance steering, and collision avoidance throttle control. Several simulation examples are included.

Low-Temperature Molecular Beam Epitaxy Of Gallium Arsenide Antisite Incorporation And Rheed Oscillations: A Theoretical Study, Natarajan Krishnan

UNLV Retrospective Theses & Dissertations

Surface dynamics dominate the incorporation of charged and neutral antisite arsenic and the temporal variation of reflection high energy electron diffraction (RHEED) intensity in the low temperature (LT) molecular beam epitaxy (MBE) of (100) gallium arsenide (GaAs). A comprehensive rate equation model is proposed based on the presence and dynamics of a physisorbed arsenic (PA) riding the growth surface which dictates the incorporation and concentration of antisites and the RHEED oscillations (ROs) behavior. The dependence of antisite concentrations on growth parameters can be explained based on the saturation of the PA layer coverage at a monolayer and the competing rate …

Nontraditional Students In Higher Education: Meeting Their Needs As Learners, Mary K. Bendixen-Noe, Carmen Giebelhaus

Mid-Western Educational Researcher

The research literature indicates nontraditional students in higher education are different from their traditional counterparts. Understanding our university clientele is important in being able to meet their needs. Instructors are encouraged to analyze their teaching strategies and to incorporate those which can further aid older students in their educational pursuits.