Digital Commons Network^™

High-ET Inclusive Jet Cross Sections In Photoproduction At Hera, J. Breitweg, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, R. Yoshida, H. Zhang, Margarita C. K. Mattingly, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, G. Castellini, L. Cifarelli, F. Cindolo, A. Contin, N. Coppola, M. Corradi, S. De Pasquale, P. Giusti, G. Iacobucci, G. Laurenti

Faculty Publications

Inclusive jet differential cross sections for the reaction e+p → e+ + jet + X with quasi-real photons have been measured with the ZEUS detector at HERA. These cross sections are given for the photon-proton centre-of-mass energy interval 134 < W < 277 GeV and jet pseudorapidity in the range -1 < ηjet < 2 in the laboratory frame. The results are presented for three cone radii in the η - φ plane, R = 1.0, 0.7 and 0.5. Measurements of dσ/dηjet above various jet-transverse-energy thresholds up to 25 GeV and in three ranges of W are presented and compared to next-to-leading order (NLO) QCD calculations. For jets defined with R = 1.0 differences between data and NLO calculations are seen at high ηjet and low EjetT. The measured cross sections for jets defined with R = 0.7 are well described by the calculations in the entire measured range ηjet and EjetT. The inclusive jet cross section for EjetT > 21 GeV is consistent with an approximately linear variation with the cone radius R in the range between 0.5 and 1.0, and with NLO calculations.

Elastic And Proton-Dissociative Ρ0 Photoproduction At Hera, J. Breitweg, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, R. Yoshida, H. Zhang, Margarita C. K. Mattingly, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, G. Castellini, M. Chiarini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, I. Gialas, P. Giusti, G. Iacobucci

Faculty Publications

Elastic and proton-dissociative ρ0 photoproduction (γp → p0p, γp → ρ0N, respectively, with p0 → π+π-) has been studied in ep interactions at HERA for photon-proton centre-of-mass energies in the range 50 < W < 100 GeV and for |t| < 0.5 GeV2, where t is the square of the four-momentum transfer at the proton vertex; the results on the proton-dissociative reaction are presented for masses of the dissociated proton system in the range M2N < 0.1W2. For the elastic process, the π+π- invariant mass spectrum has been investigated as a function of t. As in fixed target experiments, the ρ0 resonance shape is asymmetric; this asymmetry decreases with increasing |t|, as expected in models in which the asymmetry is ascribed to the interference of resonant and non-resonant π+π- production. The cross section has been studied as a function of W; a fit to the resonant part with the form Wa gives a = 0.16 ± 0.06 (stat.) +0.11-0.15 (syst.). The resonant part of the γp → π+π-p cross section is 11.2 ± 0.1 (stat.) +1.1-1.2 (syst.) μb at 〈W〉 = 71.7 GeV. The t dependence of the cross section can be described by a function of the type Aρ exp (-bρ|t| + cρt2) with bρ = 10.9 ± 0.3 (stat.) +1.0-0.5 (syst.) GeV-2 and cρ = 2.7 ± 0.9 (stat.) +1.9-1.7 (syst.) GeV-4. The t dependence has also been studied as a function of W and a value of the slope of the pomeron trajectory α IP′ = 0.23 ± 0.15 (stat.) +0.10-0.07 (syst.) GeV-2 has been deduced. The ρ0 spin density matrix elements r0400 r041-1 and ℜe[r0410] have been measured and found to be consistent with expectations based on s-channel helicity conservation. For proton-dissociative π+π- photoproduction in the ρ0 mass range, the distributions of the two-pion invariant mass, W and the polar and azimuthal angles of the pions in the helicity frame are the same within errors as those for the elastic process. The t distribution has been fitted to an exponential function with a slope parameter 5.8 ± 0.3 (stat.) ± 0.5 (syst.) GeV-2. The ratio of the elastic to proton-dissociative ρ0 photoproduction cross section is 2.0 ± 0.2 (stat.) ± 0.7 (syst.).

The Study Of Artificial Space And Metaphysical, Jong-Pil Pyun

Theses

This documentation will describe a journey of abstract art in glass. The process of each of the steps and the aesthetic concerns therein will be narrated in the following interpretation. The purpose of the MFA thesis is to investigate both artificial, negative and positive space and to exemplify metaphysical energy in glass sculpture. My aes thetic intention for the sculpture is to create dynamic, active, and energetic move ment in geometric forms which are symbolic of living creatures. This will be done by employing graphic images of centuries old Korean geometrical patterns. Historical research has allowed me to push traditional …

Territory, Curtis Carter

Philosophy Faculty Research and Publications

No abstract provided.

The Role Of Management In The Movement Towards Sustainability: Perceived Responsibilities, Challenges, And Opportunities, Martin Brueckner

Theses: Doctorates and Masters

The aim of this thesis was to explore the role of management in the movement towards ecologically sustainable development (ESD), investigating perceived responsibilities, challenges, and opportunities facing business management today. The point of departure for this study was the acknowledgement of the present paucity of references to ESD within the management literature, widespread amoral business conduct, and the dominance of economic rationalism within business science. This research provided an analytical review of ESD related literature, concentrating on the history and rise of the ESD paradigm, its ethical underpinnings, and economic implications to management practice. The paper highlighted the importance of …

Parental Perceptions Of Pre-School Education In Malaysia, Bronwyn L. Hewitt

Theses: Doctorates and Masters

Pre-school education in Malaysia has expanded significantly over the past twenty years and is currently the focus of increased attention within the Ministry of Education. This study explores and describes the perceptions of Malaysian parents concerning pre-school education. Guided by Bronfenbrenner's theory of the ecology of human development, the study examines the potential influence of macrosystem elements on the parents' perceptions, as well as the likely impact of such perceptions upon the home- pre-school mesosystem. The research was conducted with a group of 21 parents of children in their final year of preschool education. They were selected from four private …

Links Between Devolution And Changes In Curriculum Policy : A Case Study Of Year 8-10 Social Studies Curriculum In Western Australia Since 1987, Shaohua Xie

Theses: Doctorates and Masters

This study investigates the links between devolution and Year 8-10 Society and Environment (SAE) curriculum policy in Western Australia (WA) since 1987. It explores whether changes to the structure within which SAE resides, the process through which curriculum decision making occurs, and the content of SAE are consistent with the principles and practice of devolution. An attempt is made in the study to determine whether these changes would have occurred anyway, even if devolution had not been introduced. The investigation is based on a radical humanist model of social inquiry, As such, it uses a critical theory conceptual framework to …

A Methodology For The Selection Of A Paradigm Of Reasoning Under Uncertainty In Expert System Development, Vivian Campbell

Theses: Doctorates and Masters

The aim of this thesis is to develop a methodology for the selection of a paradigm of reasoning under uncertainty for the expert system developer. This is important since practical information on how to select a paradigm of reasoning under uncertainty is not generally available. The thesis explores the role of uncertainty in an expert system and considers the process of reasoning under uncertainty. The possible sources of uncertainty are investigated and prove to be crucial to some aspects of the methodology. A variety of Uncertainty Management Techniques (UMTs) are considered, including numeric, symbolic and hybrid methods. Considerably more information …

How Schools In Western Australia Are Responding To The Pressures Of Accountability In Mathematics Education, Lynne Messenger

Theses: Doctorates and Masters

Western Australian primary schools have responded to the Education Department's call for school accountability in many areas of the school accountability. This study focuses on the endeavours that schools have made to demonstrate their accountability in the subject area of Mathematics. The document "Improving and Reporting Schools' Performance" was made available to all state primary schools at the beginning of the 1996 school year as part of the Student Outcome Statement package. However, only a small number of primary schools have used the Student Outcome Statements in Mathematics in the National Professional Development Program trial conducted by the Commonwealth Department …

Automatic Flowchart Displays For Software Visualisation, Paul R. Schurmann

Theses: Doctorates and Masters

Understanding large software projects and maintaining them can be a time consuming process. For instance, when changes are made to source code, corresponding changes have to be made to any related documentation. One large section of the documentation process is the creation and management of diagrams. Currently there are very few automated diagramming systems that can produce diagrams from source code, and the majority of these diagramming systems require a significant amount of time to generate diagrams. This research aims at investigating the process of creating flowchart diagrams from source code and how this process can be fully automated. Automating …

The Experience Of Flow And Learning By Designing Interactive Multimedia Software, Leonie Ramondt

Theses: Doctorates and Masters

As computer technology is increasingly adopted in education, some students continue to have little context for its use. This is particularly true of tertiary drama education students, of whom many still remain computer illiterate. Constructivist pedagogy proposes that a learner constructs knowledge through active participation in their learning. An approach that is gaining currency which applies this principle is learning by designing. This approach was adopted for this study, with the premise that the process of designing multimedia software for their peers would not only motivate these students to use computers but could also lead to a deepening of their …

A Case Study Of Employees' Motivation To Participate In A Workplace Language And Literacy Program, Marguerite Mary Cullity

Theses: Doctorates and Masters

The reasons why non-English speaking background (NESB) shopfloor employees participate in workplace language and literacy classes and the factors that affect their motivation to participate are relative unknowns. This study investigates NESB shopfloor employees' motivation to participate in a Communication Skills Development Program (CSDP) course and the factors that affected their motivation. An inductive analysis of findings revealed that all of the employees participated in one of the CSDP courses for a variety of pre-determined life-specific reasons. These reasons are represented by three main categories of goals (i.e., 'Self-improvement through language and literacy development', 'Work', 'Outside work'). Of these goals, …

Science Laboratory Investigations In Year 9: Instruction And Assessment, Pamela J. Garnett

Theses: Doctorates and Masters

The purpose of this research was to develop, implement and evaluate science investigation work based on a cognitive apprenticeship model of instruction and 'linked' to different assessment procedures. Data were gathered to evaluate the effects of the instruction and approaches to assessment on teachers and students, and on the development of students' investigation competency. Year 9 students performed six science investigations in which they examined a relationship between variables. Groups of three students worked together to choose the independent variable, plan their investigation, collect and analyse their data, and to evaluate their findings. The cognitive apprenticeship model of instruction included …

User Response And Organisational Fit For Information Systems In Earth Observation, Jeff Kingwell

Theses: Doctorates and Masters

A group of seventy six scientists and data managers in the Australian research agency CSIRO were surveyed to establish their needs and preferences in relation to information systems for Earth observation data. After study of available alternatives, three prototype Earth observation information management systems were installed and the user response was evaluated through interview of fifteen of the group. The prototypes consisted of web-based client servers which permitted users to interrogate databases of Earth observation datasets; to search for information about sensor or satellite performance, and to retrieve data and information products. The chosen systems were CILS, the CEOS (Committee …

School To Work Transition Experience Of Year 12 School Leavers, Valerie House

Theses: Doctorates and Masters

As a consequence of increased retention rates in post compulsory schooling, educational systems have attempted to expand their curricular offerings. The aims of this study were twofold. The first was to examine a process of transition from school to work and the second considered the implications for improvement of the post compulsory school curriculum in facilitating transition. A semi structured, open ended interview was developed to gain information about the transition experience of seven Year 12 students. Interviews, recorded by audio tape, and the coded transcripts were the major data source. Results indicated that students coped well with the transition …

Predicting The Severity Of Radiation Skin Reactions In Women With Breast Cancer, Davina Porock

Theses: Doctorates and Masters

Skin reactions are unavoidable side effects of radiotherapy for breast cancer that may limit the amount of treatment a patient is able to receive. As well, the discomfort associated with the treatment may negatively affect the patient's quality of life and their willingness to complete a course of treatment that typically extends over seven weeks. Prior literature suggests that variations in patients' tissue reactions to radiation may be related to Individual patient characteristics. Before health care providers can intervene to prevent or minimise skin reactions, a clinical model that helps predict which patients will experience more skin reactions is needed. …

A Comparison Of Advanced Time Series Models For Environmental Dependent Stock Recruitment Of The Western Rock Lobster, Saarah A. Farag

Theses: Doctorates and Masters

Time series models have been applied in many areas including economics, stuck recruitment and the environment. Most environmental time series involve highly correlated dependent variables, which makes it difficult to apply conventional regression analysis, Traditionally, regression analysis has been applied to the environmental dependent stock and recruitment relationships for crustacean species in Western Australian fisheries. Alternative models, such as transfer function models and state space models have the potential to provide unproved forecasts for these types of data sets. This dissertation will explore the application of regression models, transfer function models, and state space models to modelling the puerulus stage …

Implementation Of The Wavelet-Galerkin Method For Boundary Value Problems, Adam Scheider

Theses

The objective of this work is to develop a systematic method of implementing the Wavelet-Galerkin method for approximating solutions of differential equations. The beginning of this project included understanding what a wavelet is, and then becoming familiar with some of the applications. The Wavelet-Galerkin method, as applied in this paper, does not use a wavelet at all. In actuality, it uses the wavelet's scaling function. The distinction between the two will be given in the following sections of this paper. The sections of this thesis will include defining wavelets and their scaling functions. This will give the reader valued insight …

The Particularity Of Christ And The Plurality Of Religions : A Dialectical Paradigm For Developing A Christian Theology Of Religions, Narendra Singh

ATS Dissertations

No abstract provided.

The Evaluation Of The Inductive Sermon Structure On The Spiritual Formation Of A United Methodist Congregation, Brian Clay Jones

ATS Dissertations

No abstract provided.

A Graphical Petri Nets Simulator, Shye-Chyun Huang

Theses

This thesis is an application software system (Graphical Petri Net simulator GPNS) providing a window-oriented, menu-driven and graphical interface simulator for Petri nets. This simulator is based on Place/Transition nets (PT-nets). It allows users to design and simulate PT-net under an interactive graphical environment. GPNS also provides a utility, Auxiliary Application Program (AAP), to make it more useful. When applying the AAP with the GPNS, each function in the AAP can be attached to a corresponding transition in the Petri net. Whenever an enabled transition in the Petri Net is fired will cause the corresponding function in the AAP to …

Between The Peaceful Enlightenment Of Heaven And The Revolutionary Dark Side Of Hell, Herminio J. Rodriguez

Theses

Not included.

Surface Studies Of Metals After Interaction With Hydrogen Isotopes, David Samuel Silver

Dissertations and Theses

The objective of this research is to characterize surfaces of metals after interaction with hydrogen isotopes. Iron, which does not readily bond with hydrogen, and palladium, which strongly bonds with hydrogen, were studied. Observations of surfaces are used to determine the nature of their metamorphosis due to such exposures. An experimental study of pure iron foil (99.99%) exposed to a hot, dense hydrogen and argon gas mixture in a ballistic compressor yielded evidence for new structural and compositional changes of the metal due to the exposure. Atomic force microscope (AFM) studies demonstrated surfaces to be highly uneven, where height variations …

Cross-Border Securitization: Without Law, But Not Lawless, Tamar Frankel

Faculty Scholarship

The Article discusses two puzzles posed by cross-border securitization.

First, why do the innovators in this area "give away" their creations through publications and other means rather than attempt to extract licensing fees by registering copyrights, patents, and trade names? The Article shows that innovators benefit from "giving away" their innovations through fees of the first clients or future clients to a greater extent than through licensing fees. Second, how can securitization markets develop under fragmented and unpredictable laws? The Article argues that cross-border securitization is flourishing under a "law merchant," which is later incorporated into domestic laws. In fact, …

An Ecology Problem Book, Marc Mangel, Paul Switzer, Sarah M. Eppley

Biology Faculty Publications and Presentations

This problem book has many objectives:

• To get you to think about the course each night: do not wait until the last minute to begin working on the problems.
• To get you to deal with data. Statistics courses that you take in the future will be more meaningful once you understand the kinds of data that arise in ecological studies.
• To get you to be more comfortable with theoretical and quantitative methods. Not every ecologist uses those methods, but one should not be put off by them.
• To familiarize you with material as it appears in the professional literature.

Glacial Deposits, Vol. 26, 1997-1998, Department Of Geography-Geology

Glacial Deposits

Newsletter of the Department of Geography-Geology

Gravity Drainage Prior To Cake Filtration, Scott A. Wells, Gregory K. Savage

Civil and Environmental Engineering Faculty Publications and Presentations

During the initial stages of a Buchner funnel or specific resistance test, gravity drainage occurs prior to application of the pressure differential. Some allow time for a small cake to form by gravity drainage. Filtrate data from the gravity drainage period can be used to determine constitutive properties of the cake under a hydrostatic pressure gradient. The constitutive properties that define the structure of the cake include the permeability and porosity as functions of the applied stress. Equations governing the drainage rate during a gravity filtration experiment assuming a constant and a non-constant average cake permeability and cake porosity were …

Stress And Stress-Related Disorders Among College Students From A Cross-Cultural Perspective, Dmitri Poltavski

Undergraduate Theses and Senior Projects

No abstract provided.

Attitudes, Experiences And Intention To Support Breastfeeding In The Elder Population, Elizabeth Miller

Undergraduate Theses and Senior Projects

No abstract provided.

Truth And Its Rivals In The Law Of Hearsay And Confrontation, Richard D. Friedman

UC Law Journal

No abstract provided.