Digital Commons Network^™

School Community Vitalisation Resource Kit, Department Of Agriculture And Food, Western Australia

All other publications

The goal of the three workshops held in Moora, Leeman and Quairading was to pull together rural communities from across Western Australia to discuss the possibility! It was a great opportunity for teachers, school administrators, community leaders and most importantly, young people to plan together to enhance the future of their community and their schools.

Kinematics Of Tt̅ Events At Cd, F. Abe, Kenneth A. Bloom, Collider Detector At Fermilab Collaboration

Kenneth Bloom Publications

The kinematic properties of tt̅ events are studied in the W + multijet channel using data collected with the CDF detector during the 1992–1995 runs at the Fermilab Tevatron collider corresponding to an integrated luminosity of 109 pb^-1. Distributions of a variety of kinematic variables chosen to be sensitive to different aspects of tt̅ production are compared with those expected from Monte Carlo calculations. A sample of 34 events rich in tt̅ pairs is obtained by requiring at least one jet identified by the silicon vertex detector (SVX) as having a displaced vertex consistent with the decay of …

Nebraska Earth Systems Education Network Newsletter – Spring 1999

Nebraska Earth Systems Education Network

Content:

Everything is Connected to Everything Else." - Dave Gosselin, NESEN Director

Earth Science in The Community

NESEN Teachers Forum

1999 Summer Workshops – Join us in July!

The T in STEDII - by Mark Mesarch

New Lessons on the Internet - by Mark Mesarch

Climprob for the Net

NATS Needs You

Are You Itching to Win a Trip to Space Camp?

Student Honors And Awards Program 1999, University Relations

UMM Honors and Awards Ceremony

In recognition of students who demonstrate academic excellence and enrich campus life.

Thermal Decomposition And Combustion Of Γ-Irradiated Polyamide 6 Containing Phosphorus Oxynitride Or Phospham, A. I. Balabanovich, Sergei V. Levchik, Galina F. Levchik, W. Schnabel, Charles Wilkie

Chemistry Faculty Research and Publications

Polyamide 6 (PA-6) containing the fire retardants phosphorus oxynitride ((PON)_m) or phospham ((PN₂H)_n) was exposed to ⁶⁰Co-γ-rays (absorbed dose: 1.0–4.0 MGy). The irradiation led to crosslinking of the polymer which caused an increase in the char yield and a decrease in the flammability of the polymer. The combustion behavior was strongly affected by irradiation: dripping was totally prevented in the case of system PA-6/(PN₂H)_n and strongly retarded in the case of system PA-6/(PON)_m. The thermal stability of the system PA-6/(PN₂H)_n decreased with increasing absorbed dose …

The Arccos And Lommel Formulations—Approximate Closed-Form Diffraction Corrections, Charles J. Daly, Navalgund A. H. Rao

Articles

A closed-form frequency-domain formalism for spatially integrated diffraction corrections is proposed. Spatially integrated diffraction corrections are necessary when trying to characterize material with ultrasonic probing. In the case of piston transducers and point receivers, the Lommel diffraction formulation is used when the excitation is monochromatic, and the arccos diffraction formulation is used when the excitation is impulsive. The Lommel and arccos formulations are usually treated separately; here, they are connected. Specifically, the arccos diffraction formulation and Lommel diffraction formulation are shown to form an approximate Fourier transform pair. Since the Lommel formulation is amenable to closed-form spatial integration, Lommel functions …

Positive Anisotropic Group Scattering Cross Sections For Radiation Transport, J. Mark Delgrande

Theses and Dissertations

In solving the Boltzmann transport equation, most discrete ordinates codes calculate the source term by first approximating the scattering cross section using a Legendre polynomial expansion. Such expansions are insufficient when scattering is anisotropic and the Legendre expansion is truncated prematurely. This can lead to nonphysical negative cross sections, negative source terms and negative angular fluxes. While negative sources are problematic for standard discrete ordinates methods leading to poor convergence or convergence to incorrect results, they are of particular concern to exponential methods, causing such calculations to fail. We've developed and tested a new technique to solve this problem called …

Image Fusion Using Autoassociative-Heteroassociative Neural Networks, Claudia V. Kropas-Hughes

Theses and Dissertations

Images are easily recognized, classified, and segmented; in short, analyzed by humans. The human brain/nervous system; the biological computer, performs rapid and accurate image processing. In the current research the concepts of the biological neural system provide the impetus for developing a computational means of fusing image data. Accomplishing this automatic image processing requires features be extracted from each image data set, and the information content fused. Biologically inspired computational models are examined for extracting features by transformations such as Fourier, Gabor, and wavelets, and for processing and fusing the information from multiple images through evaluation of autoassociative neural networks …

Close Formation Flight Control, Andrew W. Proud

Theses and Dissertations

In this research the close formation flight control problem is addressed. The formation consists of a lead and wing aircraft, where the wing flies in close formation with the lead, such that the lead's vortices produce aerodynamic coupling effects, and a reduction in the formation's drag is achieved. A controller, i.e., a formation-hold autopilot for the wing aircraft, is designed such that the formation's geometry is maintained in the face of lead aircraft maneuvers. In the formation flight control system, the wing and lead aircraft dynamics are coupled due to kinematic effects, and, in the case of close formations, additional …

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.

Near-Field Fluorescence Microscopy Based On Two-Photon Excitation With Metal Tips, Erik J. Sánchez, Lukas Novotny, X. Sunney Xie

Physics Faculty Publications and Presentations

We present a new scheme for near-field fluorescence imaging using a metal tip illuminated with femtosecond laser pulses of proper polarization. The strongly enhanced electric field at the metal tip (ap15 nm end diameter) results in a localized excitation source for molecular fluorescence. Excitation of the sample via two-photon absorption provides good image contrast due to the quadratic intensity dependence. The spatial resolution is shown to be better than that of the conventional aperture technique. We used the technique to image fragments of photosynthetic membranes, as well as j-aggregates with spatial resolutions on the order of 20 nm.

At Risk In The Writing Classroom: Negotiating A Lesbian Teacher Identity, Irene G. Meaker

Department of English: Dissertations, Theses, and Student Research

"Education is a fearful enterprise," says teacher and philosopher, Parker Palmer. Student-centered/ processoriented pedagogy asks teachers to step out from behind the relative safety of the teacher mask and to enter the risky arena of learning. For the writing teacher, a special challenge is to help students negotiate the risks inherent in the act of writing and in sharing writing with the "Other."

To prevent fears from dominating our students, teachers must model risk-taking and risk negotiation. In my own teaching, my fears around students' reactions to learning my sexual identity meant that I more often reinforced fears than dispelled …

Insight Into The Selectivity Of Molecular Imprinted Polymers, Thomas Patrick O'Brien

Seton Hall University Dissertations and Theses (ETDs)

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On The Solutions Of Certain Difference Equations, Loretta I. Chue

Theses (Pre-2016)

The objective of this paper is to investigate the behavior of solutions to certain types of difference equations. Two types of equations will be studied.

They are: (i) Xn+l = f(xn) and (ii) Xn+l = g(Xn-l, xn) where f and g are certain functions. Properties to be investigated include boundedness, oscillation, periodicity and asymptotic behavior

Alternative Definitions Of Attracting And Repelling Fixed Points, Lashondia Renae Green

Theses (Pre-2016)

This paper focuses on the definitions for attracting (stable) fixed points and repelling (unstable) fixed points. These terms arise as descriptions for the long term behavior of iterates of certain simple functions. The dynamical systems studied in this paper involve the iterates of points near a fixed point of a function. As the iterates of these points are studied using graphical analysis, diverse behavior relative to the fixed point can be observed. Based on this behavior, the fixed point can be characterized as attracting (stable) or repelling (unstable). Although there is no standard definition for these terms, this paper studies …

A Comparison Between The Level Of Carbon Tetrachloride And Total Trihalomethane Levels In Drinking Water Of Selected Regions Of Greater Houston And The National Primary Drinking Water Standards, Angela Lannetta Curry

Theses (Pre-2016)

This study was carried out to measure carbon tetrachloride and total trihalomethane (TTHM) levels in Houston's drinking water and compare them to the National Primary Drinking Water Standards for total trihalomethanes. Samples were collected from the faucets of several homes in various geographic locations throughout the city. Total trihalomethanes analyzed were: bromoform, chloroform, dibromochloromethane, bromodichloromethane, in addition to volatile compounds. Compounds were identified using a Gas Chromatography/Electron Capture Detector (GC/ECD), and confirmed by use of a Gas ChromatographyiMass Spectrometer (GC/MS). The data from the GC/ECD showed that total trihalomethane levels were at, or below national standard levels for most of …

Edison Communicator Volume Four; Number Nine, Edison Community College

Edison Communicator

Edison Communicator: A Publication for the Faculty, Staff and Friends of Edison Community College.

Immanuel Kant's Transition From Pure To Practical Reason, Bradley Hergott

Honors Theses

No abstract provided.

The Decomposition Theorem For Two-Dimensional Shifts Of Finite Type, Aimee S. A. Johnson, K. M. Madden

Mathematics & Statistics Faculty Works

A one-dimensional shift of finite type can be described as the collection of bi-infinite "walks" along an edge graph. The Decomposition Theorem states that every conjugacy between two shifts of finite type can be broken down into a finite sequence of splittings and amalgamations of their edge graphs. When dealing with two-dimensional shifts of finite type, the appropriate edge graph description is not as clear; we turn to Nasu's notion of a "textile system" for such a description and show that all two-dimensional shifts of finite type can be so described. We then define textile splittings and amalgamations and prove …

Rising Above Expectations: Personal Development Through Education, Joyce Scott Tippens

Digitized Theses and Dissertations (prior to 2008)

A portfolio submitted in partial fulfillment of the requirements for the degree of Master of Arts in Professional Writing in the Department of English in the College of Humanities and Social Sciences of Kennesaw State University

Applying Neural Networks In Case-Based Reasoning Adaptation For Cost Assessment Of Steel Buldings, Essam Amin Mlotfy Abdrabou

Archived Theses and Dissertations

No abstract provided.

Delta Rsi Schools To Benefit From Science Supplies Giveaway, Elaine Pugh

University of Mississippi News

UNIVERSITY, Miss. -- A windfall of science materials to aid classroom teaching will be distributed May 15 in Tupelo to specified schools around the state thanks to Carolina Biological Supplies of Burlington, N.C.

Utb/Tsc This Week 1999-05, University Of Texas At Brownsville And Texas Southmost College. Office Of News And Information

UTB/TSC Archives - This Week Newsletter

No abstract provided.

The Role Of Iron And Reactive Oxygen Species In Particulate Air Pollution-Dependent Biochemical And Biological Activities, Kevin Richard Smith

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Particulate air pollution is known to exacerbate respiratory diseases, such as asthma and chronic obstructive pulmonary disease, in humans. It has been proposed that transition meta ls from inhaled particles may play a role in this exacerbation by generating radical species leading to damage in the lungs.

The aim of this research was to determine the role that iron from particulate air pollution played in the generation of reactive oxygen species and subsequently the induction of inflammatory mediators in cells in culture. The production of reactive oxygen species by particulate air pollution was found to be dependent on the mobilization …

Inviting Critical And Creative Thinking Into The Classroom, Kelley A. Freeman

Critical and Creative Thinking Capstones Collection

In the field of education, there is much discussion around the subtleties of teaching critical and creative thinking. Surrounding the controversy are questions such as, are certain skills are subordinate to others, and can best practices be fully described. Amidst this continuing discussion, most students are not being taught the necessary, fundamental skills that will allow them to become good thinkers; nor is curriculum being aligned to explicitly and systematically include thinking skills. In the interim however, teachers can become aware of what is involved in critical and creative thinking and the dispositions, skills, strategies and environment that foster good …

Stress, Stress Utilization, And Creativity, Lisa M. Kobe

Student Work

This study investigated the effects of stress on creative problem solving. It was predicted that individuals in a stressful condition would perform worse on creative problem solving tasks than individuals in a relaxed condition and worse than individuals in a stressful condition where they successfully coped with the incident. It was also predicted that when in a stressful experience, individuals who are able to acknowledge and to advantageously use the information obtained from a stressful situation (high stress utilization) would perform better on creative problem solving tasks than individuals who are not able to acknowledge and use this information (low …

Response To Review By Terrance Sandalow, William G. Bowen, Derek Bok

Michigan Law Review

Mark Twain tried to convey the size and complexity of the Mississippi by explaining to his readers that the river draws its water from every state between Delaware and Idaho, discharges 338 times as much water as the Thames, and is fed by 54 subordinate rivers each of which was large enough for steamboat travel.

Typeface Design For A Thai Context: An English Typface With Thai Stylistic Considerations, Napawan Sawasdichai

Theses

This thesis involves the design of a new English typeface which reflects the aesthetic values of Thai culture. It incorporates Thai stylistic considerations, including the unique appearances and forms of Thai artifacts, into the design of English letterforms. A primary purpose of this new typeface would be for use as a display typeface in printed or digital applications regarding Thai subjects, which are distributed inside and outside Thailand.

Philosophy Made Visual, Kirk Gustafson

Theses

Focuses on how graphic design can be implemented as an educational tool to help visually-oriented college-aged students learn a particular philosophical concept. Plato's Divided Line and Allegory of the Cave were chosen as the content for the thesis study

The I-Band Tully-Fisher Relation For Sc Galaxies: 21 Centimeter H I Line Data, Martha P. Haynes, Riccardo Giovanelli, Pierre Chamaraux, Luiz N. Da Costa, Wolfram Freudling, John J. Salzer, Gary Wegner

Dartmouth Scholarship

A compilation of 21 cm line spectral parameters specifically designed for application of the Tully-Fisher (TF) distance method is presented for 1201 spiral galaxies, primarily field Sc galaxies, for which optical I-band photometric imaging is also available. New H I line spectra have been obtained for 881 galaxies. For an additional 320 galaxies, spectra available in a digital archive have been reexamined to allow application of a single algorithm for the derivation of the TF velocity width parameter. A velocity width algorithm is used that provides a robust measurement of rotational velocity and permits an estimate of the error …