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1999

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Knowledge And Attitudes Of Sexuality In The Elderly Among Educators Of Health Care Professionals, Joanne L. Chapman Jan 1999

Knowledge And Attitudes Of Sexuality In The Elderly Among Educators Of Health Care Professionals, Joanne L. Chapman

Theses: Doctorates and Masters

Many elderly adults have fears and concerns regarding sexuality, including the impact of chronic disease on sexual function. Typically, society has negative attitudes toward elderly sexual expression with misconceptions, negative stereotyping and myths compounding ageist perceptions that the elderly become asexual with age. Thus knowledge of and attitudes toward sexuality in the elderly has become an area of interest over the past several decades. In an attempt to promote sexual expression as a right for the elderly and physiological changes viewed in terms of positive adjustment, White (1982) developed an instrument to determine knowledge of and attitudes towards sexuality of …

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An Empirical Comparison Using Both The Term Structure Of Interest Rates And Alternative Models In Pricing Options On 90-Day Bab Futures, Irene Chau Jan 1999

An Empirical Comparison Using Both The Term Structure Of Interest Rates And Alternative Models In Pricing Options On 90-Day Bab Futures, Irene Chau

Theses: Doctorates and Masters

The use of the term structure of interest rates to price options is relatively new in the literature. It describes the relationship between interest rates and the maturities of bonds. The first model that described the interest rate process was the Vasicek (1977) model. There have been many studies on the formulation of theoretical pricing models. Yet limited empirical research has been done in the area of actually testing the models. In this thesis we report the results of a set of tests of the models indicated below. This paper involves analysis of the pricing errors of the Black model …

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Astride Two Worlds: The Chinese Response To Changing Citizenship In Western Australia (1901-1973), Tian M. Cai Jan 1999

Astride Two Worlds: The Chinese Response To Changing Citizenship In Western Australia (1901-1973), Tian M. Cai

Theses: Doctorates and Masters

Citizenship is central to understanding the nature of Chinese migrants and their relationships within the social and political environment in Australia. Utilising the concept of citizenship can be a new way to interpret the human experience of the Chinese survival in Australia and to show that a historical balance can be found between the Australian social environment on the one side and the Chinese experience in Australia on the other. How the Chinese community reacted to the changing issues in citizenship and attitudes towards Asian immigration become the focus of the thesis. This research is designed to ask how Chinese …

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Reporting Misconduct : A Descriptive Study Of Whistleblowing In Nursing, Sally Mcdonald Jan 1999

Reporting Misconduct : A Descriptive Study Of Whistleblowing In Nursing, Sally Mcdonald

Theses: Doctorates and Masters

This research examined the effects of whistleblowing and non-whistleblowing on nurses in Western Australia. A descriptive survey design was used to explore the physical, emotional and professional effects experienced by nurses who blew the whistle and nurses who did not blow the whistle on misconduct. This study also examined the effective and ineffective coping behaviours reported by participants. A questionnaire was developed based on Lazarus and Folkman's Stress/Coping model and mailed to 500 nurses in Western Australia. Of these, 100 returned the completed questionnaire, indicating a response rate of 20%. Ninety-five respondents wereincluded in the study; 70 were self-identified as …

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Emotion Altering Effects Of Research Participation, Matthew Dunsire Jan 1999

Emotion Altering Effects Of Research Participation, Matthew Dunsire

Theses: Doctorates and Masters

Previous studies have suggested that participating in psychological research may temporarily amplify participants’ experience of positive or negative emotions (Daugherty & Lawrence. 1996). In the present research, 114 male and female university students completed either self-focused or non-self-focused questionnaires to investigate characteristics that may predispose some participants to positive or negative reactions following participation in research. Four hypotheses were examined: (a) A self-focused task compared to a non-self-focused task would significantly increase average levels of emotional arousal; (b) the amplification of emotional reactions would be greater in females than males (c) participants experiencing negative life events and who are less …

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Development Of A Model For Smart Card Based Access Control In Multi-User, Multi-Resource, Multi-Level Access Systems, David Shaw Jan 1999

Development Of A Model For Smart Card Based Access Control In Multi-User, Multi-Resource, Multi-Level Access Systems, David Shaw

Theses: Doctorates and Masters

The primary focus of this research is an examination of the issues involved in the granting of access in an environment characterised by multiple users, multiple resources and multiple levels of access permission. Increasing levels of complexity in automotive systems provides opportunities for improving the integration and efficiency of the services provided to the operator. The vehicle lease / hire environment provided a basis for evaluating conditional access to distributed, mobile assets where the principal medium for operating in this environment is the Smart Card. The application of Smart Cards to existing vehicle management systems requires control of access to …

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Affect Intensity And Affect Regulation In Prisoners With A History Of Self-Harm, Christina J. Kozar Jan 1999

Affect Intensity And Affect Regulation In Prisoners With A History Of Self-Harm, Christina J. Kozar

Theses: Doctorates and Masters

Prisoners with a history of self-harm have reported experiencing more anger (e.g., Hilbrand, Krystal, Sharpe, & Foster, 1994 ), and despair (e.g., Shea, 1993 ), and less ability to cope (e.g., Shea, 1993; Liebling, 1992) than prisoners with no history of self-harm. This suggests that intense negative affective experiences and less control over these states might be pervasive characteristics in individuals vulnerable to self-harm. The present study tested the hypotheses that high affect intensity, the tendency to experience both positive and negative emotional states intensely (Larsen & Diener, 1987), and deficits in negative affect regulation would be associated with self-harm …

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Aliens, Bodies And Conspiracies: Regimes Of Truth In The X-Files, Leanne Mcrae Jan 1999

Aliens, Bodies And Conspiracies: Regimes Of Truth In The X-Files, Leanne Mcrae

Theses: Doctorates and Masters

The X-Files is a television program that first screened on Australian television in 1993. This thesis will investigate the role of The X-Files as a cultural text. The X-Files is a significant program, and has contributed to a shift in the way in which television texts represent ideas about society, knowledge and truth. This thesis argues that The X-Files presents ‘knowledge’ in particular ways, and makes it possible to think about the relationship between the body, knowledge, and society in ways which have not previously been so visible.

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Art And Body Image : A Journey Through Anorexia Nervosa And The Implications For Art Therapy Rituals, Peta Horrex Jan 1999

Art And Body Image : A Journey Through Anorexia Nervosa And The Implications For Art Therapy Rituals, Peta Horrex

Theses: Doctorates and Masters

This thesis examines the experience of body image and self image are for a sufferer with the eating disorder anorexia nervosa. Themes and symbols are explored and interpreted in art work that was produced in six session of individual art therapy. The sessions were designed to deal with issues and problems that had been discussed previously, or that became relevant during each session. The study is conducted from an interpretive perspective. It concentrates on the transference of the internal unconscious in the artwork created by, Michelle, who suffers from anorexia nervosa. The interpretation is from a western art therapy and …

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To Immunize Or Not To Immunize, That Is The Question! An Investigation Into The Reasons Behind Parents' Decisions In Immunizing Their Children Against Whooping Cough In Western Australia, Eliena Kirov Jan 1999

To Immunize Or Not To Immunize, That Is The Question! An Investigation Into The Reasons Behind Parents' Decisions In Immunizing Their Children Against Whooping Cough In Western Australia, Eliena Kirov

Theses : Honours

Demographic data on the immunization status of Australia indicates that Western Australia has relatively low immunization coverage for whooping cough. Australian quantitative studies have been carried out on parental attitudes in Australia towards immunization, but there has been no analysis of parents' reasons for their decisions. This study identified the key issues that influenced the decisions made by the target group of parents and explored their decision-making in more depth. The data from this study could also be used to supplement the information currently available to health workers. Eight participants with children between the ages of 2 months and 6 …

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Evaluating Oral Histories For Restoration Ecology, Margaret Robertson Jan 1999

Evaluating Oral Histories For Restoration Ecology, Margaret Robertson

Theses : Honours

Significant ecological restoration is required in the agricultural regions of south-western Australia. Environmental history, including local knowledge based on long-term observation of the biophysical environment, can help guide this process. Scientists already use local anecdotal information because other information sources are absent or too recent, yet they are often skeptical of its veracity. This study focused on whether environmental oral histories can be evaluated for factual accuracy and their capacity to be useful in the restoration process. Some of the complexities associated with linking environmental histories with restoration ecology, and the role played by oral histories in establishing the link …

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Molecular Studies Of Splice Sites In The Canine Dystrophin Gene, Hayley Durling Jan 1999

Molecular Studies Of Splice Sites In The Canine Dystrophin Gene, Hayley Durling

Theses : Honours

The development of an effective therapy for Duchenne Muscular Dystrophy (DMD) is one of the primary goals of all DMD/Becker Muscular Dystrophy (BMD) research. Golden Retriever Muscular Dystrophy (GRMD), an animal model of DMD is a fatal degenerative myopathy. Unlike the mdx model, the GRMD dog more accurately reflects the phenotype shown by human DMG patients, making the model better suited for the investigation and assessment of potential therapeutic approaches. The GRMD mutation, a base change from A to G in the 3' splice acceptor site of intron 6, results in exon 7 skipping which disrupts the translational reading frame. …

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Light Aircraft Management System, Evan Karjalainen Jan 1999

Light Aircraft Management System, Evan Karjalainen

Theses : Honours

This report details methods to construct a flight data logging system that can be used to manage student flight and aircraft maintenance records. These methods utilise GPS, embedded processors and associated software to depict the occurrence of landings, "Touch and Goes" and record aircraft total flight time. By manipulating these methods it was possible to produce a usable data-logging unit which facilitated the automation of flight maneuver recording. This datatogging unit was constructed from embedded components and interfaced with a user defined database. Perusal of the details within should provide the reader with a clear understanding of the tasks involved …

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Toward A Formative Project Of Securing Freedom And Equality, Linda C. Mcclain Jan 1999

Toward A Formative Project Of Securing Freedom And Equality, Linda C. Mcclain

Faculty Scholarship

This Symposium offers an occasion to pursue two important tasks: (1) identifying normative and constitutional foundations for an affimnative governmental responsibility to engage in a "formative project" that would foster persons' capacities for democratic and personal self-government;' and (2) exploring the mix of normative and empirical inquiries necessary to shape the proper goals and parameters of such a project. These tasks are relevant to my larger project of attempting to develop a synthetic, or feminist and liberal, normative account of rights, responsibilities, and governmental promotion of good, self-governing lives.2 That account argues for governmental responsibility to foster the preconditions for …

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Trends In The Regulation Of Investment Companies And Investment Advisers, Tamar Frankel Jan 1999

Trends In The Regulation Of Investment Companies And Investment Advisers, Tamar Frankel

Faculty Scholarship

Statutes, rules and enforcement actions are tea leaves we can read to predict future trends of mutual fund regulation. While statutes and rules are specific, the trends they signify are far more speculative. This Essay engages in such speculation to envision the long-term implications of the recent new N- 1A disclosure form, I the plain English Rule,2 and the profile. 3 More generally, the Essay speculates on future trends in Securities and Exchange Commission ("Commission") enforcement, and predicts a continued and stronger use of informal enforcement by the Commission.

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Contesting Government's Financial Interest In Drug Cases, Eric D. Blumenson, Eva Nilsen Jan 1999

Contesting Government's Financial Interest In Drug Cases, Eric D. Blumenson, Eva Nilsen

Faculty Scholarship

In 1984, the civil asset forfeiture law was amended to allow the U.S. Department of Justice (DOJ) and state law enforcement agencies to retain many of the "drug-related assets" they seize for their own law enforcement purposes. Under this amendment, some local law enforcement agencies have managed to double or triple their appropriated budgets by targeting such assets. As former Attorney General Richard Thornburgh has noted, "it's now possible for a drug dealer to serve time in a forfeiture-financed prison after being arrested by agents driving a forfeiture-provided automobile while working in a forfeiture-funded sting operation." The American people, however, …

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Physician Attitudes Toward Clinical Health Psychologists In Medical Settings, Katherine T. Kelly Jan 1999

Physician Attitudes Toward Clinical Health Psychologists In Medical Settings, Katherine T. Kelly

All-Inclusive List of Electronic Theses and Dissertations

The primary healthcare system is noted to be the de facto mental health system in the United States” (Stroshal, 1996). Despite this fact, patients typically do not receive the appropriate behavioral treatment to ameliorate their pain and suffering (Resnick & Rozensky, 1996). The present study attempted to investigate physicians' attitudes toward psychologists in medical settings with regard to whether these attitudes are influenced by (a) levels of medically/psychologically based medical conditions, (b) level of resident training, (c) level of exposure to psychological services, and (d) level of emphasis on psychological training within the medical schools. Thirty-nine female and forty-five male …

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Plasticity In Avian Unihemispheric Sleep: An Antipredator Function, Niels Christian Rattenborg Jan 1999

Plasticity In Avian Unihemispheric Sleep: An Antipredator Function, Niels Christian Rattenborg

All-Inclusive List of Electronic Theses and Dissertations

A largely unexplored area in behavioral ecology is the inherent conflict between sleep and wakefulness. Wakefulness is an adaptive state that allows animals to interact with their environment, yet its efficacy is contingent upon prior sleep, a vulnerable state of reduced responsiveness. Birds and aquatic mammals have essentially side-stepped this problem by simultaneously engaging in both wakefulness and sleep; one cerebral hemisphere sleeps while the other remains awake, a unique state known as unihemispheric sleep. In aquatic mammals, unihemispheric sleep allows sleep and sufacing to breathe to occur concurrently. However, the adaptive function of avian unihemispheric sleep has been unclear. …

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The Effects Of Acute Exercise On Cognitions Related To Depression, Julia M. Lash Jan 1999

The Effects Of Acute Exercise On Cognitions Related To Depression, Julia M. Lash

All-Inclusive List of Electronic Theses and Dissertations

Exercise is known to improve mood and reduce depression. However, the mechanism(s) responsible for the antidepressent effects of exercise are not known. Cognitive therapy, one of the most effective psychological treatments of depression, is based on the assumption that changes in a person's negative thoughts will result in a remission of depression. The purpose of this study was to determine if a similar change in cognitions might occur with exercise. Self-report measures of mood (Profile of Mood States and Visual Analog Mood Scale) and depressive cognitions (Automatic Thoughts Questionnaire, Beck Self-Concept Test and Dysfunctional Attitudes Scale) were measured before and …

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An Evaluation Of The Current State Of Digital Photography, Charles Dickinson Jan 1999

An Evaluation Of The Current State Of Digital Photography, Charles Dickinson

Theses

The field of digital photography is always changing. Due to the rapid pace of new technologies being developed for this area, it is becoming more commonly used by people in all walks of life, particularly that of the consumer. It is therefore important to critically evaluate the current state of this technology to gain a better understanding of how advanced it has become. This research has evaluated the digital photographic systems from digital camera input to printer output. The metrics used to judge the performance of the camera and printer performance were the modulation transfer functions, or MTFs, of the …

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Measurement Of Jet Shapes In High-Q2 Deep Inelastic Scattering 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 Jan 1999

Measurement Of Jet Shapes In High-Q2 Deep Inelastic Scattering 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

The shapes of jets with transverse energies, EjetT, up to 45 GeV produced in neutral- and charged-current deep inelastic e+p scattering (DIS) at Q2 > 100 GeV2 have been measured with the ZEUS detector at HERA. Jets are identified using a cone algorithm in the η-φ plane with a cone radius of one unit. The jets become narrower as EjetT increases. The jet shapes in neutral- and charged-current DIS are found to be very similar. The jets in neutral-current DIS are narrower than those in resolved processes in photoproduction and closer to those in direct-photon processes for the same ranges in …

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Measurement Of Inclusive D*± And Associated Dijet 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 Jan 1999

Measurement Of Inclusive D*± And Associated Dijet 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 photoproduction of D*± mesons has been measured for photon-proton centre-of-mass energies in the range 130 < W < 28OGeV and photon virtuality Q2 < IGeV2. The data sample used corresponds to an integrated luminosity of 37 pb-1. Total and differential cross sections as functions of the D* transverse momentum and pseudorapidity are presented in restricted kinematical regions and the data are compared with next-to-leading order (NLO) perturbative QCD calculations using the "massive charm" and "massless charm" schemes. The measured cross sections are generally above the NLO calculations, in particular in the forward (proton) direction. The large data sample also allows the study of dijet production associated with charm. A significant resolved as well as a direct photon component contribute to the cross section. Leading order QCD Monte Carlo calculations indicate that the resolved contribution arises from a significant charm component in the photon. A massive charm NLO parton level calculation yields lower cross sections compared to the measured results in a kinematic region where the resolved photon contribution is significant.

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Zeus Results On The Measurement And Phenomenology Of F2 At Low Cursive Greek Chi And Low Q2, J. Breitweg, S. Chekanov, 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, G. Abbiendi, 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 Jan 1999

Zeus Results On The Measurement And Phenomenology Of F2 At Low Cursive Greek Chi And Low Q2, J. Breitweg, S. Chekanov, 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, G. Abbiendi, 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

Faculty Publications

Measurements of the proton structure function F2 for 0.6 < Q2 < 17 GeV2 and 1.2 × 10-5 < cursive Greek chi < 1.9 × 10 -3 from ZEUS 1995 shifted vertex data are presented. From ZEUS F2 data the slopes dF2/d ln Q2 at fixed cursive Greek chi and din F2/d ln(1/cursive Greek chi) for cursive Greek chi < 0.01 at fixed Q2 are derived. For the latter, E665 data are also used. The transition region in Q2 is explored using the simplest non-perturbative models and NLO QCD. The data at very low Q2 ≤ 0.65 GeV2 are described successfully by a combination of generalised vector meson dominance and Regge theory. From a NLO QCD fit to ZEUS data the gluon density in the proton is extracted in the range 3 × 10-5 < cursive Greek chi < 0.7. Data from NMC and BCDMS constrain the fit at large cursive Greek chi. Assuming the NLO QCD description to be valid down to Q2 ∼ 1 GeV2, it is found that the qq̄ sea distribution is still rising at small cursive Greek chi and the lowest Q2 values whereas the gluon distribution is strongly suppressed.

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Forward Jet Production In Deep Inelastic Scattering 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 Jan 1999

Forward Jet Production In Deep Inelastic Scattering 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

The inclusive forward jet cross section in deep inelastic e+p scattering has been measured in the region of cursive Greek chi-Bjorken, 4.5 · 10-4 to 4.5 · 10-2. This measurement is motivated by the search for effects of BFKL-like parton shower evolution. The cross section at hadron level as a function of cursive Greek chi is compared to cross sections predicted by various Monte Carlo models. An excess of forward jet production at small cursive Greek chi is observed, which is not reproduced by models based on DGLAP parton shower evolution. The Colour Dipole model describes the data reasonably well. …

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Measurement Of The Diffractive Cross Section In Deep Inelastic Scattering Using Zeus 1994 Data, 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 Jan 1999

Measurement Of The Diffractive Cross Section In Deep Inelastic Scattering Using Zeus 1994 Data, 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

The DIS diffractive cross section, dσdiffγ*p→XN/dMx, has been measured in the mass range Mx < 15 GeV for γ*p c.m. energies 60 < W < 200 GeV and photon virtualities Q2 = 7 to 140 GeV2. For fixed Q2 and Mx, the diffractive cross section rises rapidly with W, dσdiffγ*p→X N (Mx, W, Q2)/dMx ∝ Wadiff with adiff = 0.507 ± 0.034 (stat) +0.155-0.046 (syst) corresponding to a t-averaged pomeron trajectory of ̄αℙ = 1.127 ± 0.009 (stat) +0.039-0.012 (syst) which is larger than ̄αℙ observed in hadron-hadron scattering. The W dependence of the diffractive cross section is found to be the same as that of the total cross section for scattering of virtual photons on protons. The data are consistent with the assumption that the diffractive structure function FD(3)2 factorizes according to cursive greek chiℙFD(3)2(cursive greek chiℙ, β, Q2) = (cursive greek chi0//cursive greek chiℙ)nFD(2)2(β, Q2). They are also consistent with QCD based models which incorporate factorization breaking. The rise of cursive greek chiℙFD(3)2 with decreasing cursive greek chiℙ and the weak dependence of FD(2)2 on Q2 suggest a substantial contribution from partonic interactions.

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Exclusive Electroproduction Of Ρ0 And J/Ψ Mesons At Hera, J. Breitweg, S. Chekanov, 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 Jan 1999

Exclusive Electroproduction Of Ρ0 And J/Ψ Mesons At Hera, J. Breitweg, S. Chekanov, 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

Faculty Publications

Exclusive production of ρ0 and J/ψ mesons in e+p collisions has been studied with the ZEUS detector in the kinematic range 0.25 < Q2 < 50 GeV2, 20 < W < 167 GeV for the ρ0 data and 2 < Q2 < 40 GeV2, 50 < W < 150 GeV for the J/ψ data. Cross sections for exclusive ρ0 and J/ψ production have been measured as a function of Q2, W and t. The spin-density matrix elements r0400, r11-1i and Re r510 have been determined for exclusive ρ0 production as well as r0400 and r041-1 for exclusive J/ψ production. The results are discussed in the context of theoretical models invoking soft and hard phenomena.

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Measurement Of Dijet Photoproduction At High Transverse Energies At Hera, J. Breitweg, S. Chekanov, M. Derrick, D. Krakauer, S. Magill, B. Musgrave, A. Pellegrino, J. Repond, R. Stanek, R. Yoshida, Margarita C. K. Mattingly, G. Abbiendi, 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 Jan 1999

Measurement Of Dijet Photoproduction At High Transverse Energies At Hera, J. Breitweg, S. Chekanov, M. Derrick, D. Krakauer, S. Magill, B. Musgrave, A. Pellegrino, J. Repond, R. Stanek, R. Yoshida, Margarita C. K. Mattingly, G. Abbiendi, 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

The cross section for dijet photoproduction at high transverse energies is presented as a function of the transverse energies and the pseudorapidities of the jets. The measurement is performed using a sample of ep-interactions corresponding to an integrated luminosity of 6.3 pb-1, recorded by the ZEUS detector. Jets are defined by applying a kT-clustering algorithm to the hadrons observed in the final state. The measured cross sections are compared to next-to-leading order QCD calculations. In a kinematic regime where theoretical uncertainties are expected to be small, the measured cross sections are higher than these calculations.

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Measurement Of High-Q2 Neutral-Current E+P Deep Inelastic Scattering Cross-Sections At Hera, J. Breitweg, S. Chekanov, M. Derrick, D. Krakauer, S. Magill, B. Musgrave, A. Pellegrino, J. Repond, R. Stanek, R. Yoshida, Margarita C. K. Mattingly, G. Abbiendi, 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 Jan 1999

Measurement Of High-Q2 Neutral-Current E+P Deep Inelastic Scattering Cross-Sections At Hera, J. Breitweg, S. Chekanov, M. Derrick, D. Krakauer, S. Magill, B. Musgrave, A. Pellegrino, J. Repond, R. Stanek, R. Yoshida, Margarita C. K. Mattingly, G. Abbiendi, 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

The e+p neutral-current deep inelastic scattering differential cross-sections dσ/dQ2, for Q2 > 400 GeV2, dσ/dx and dσ/dy, for Q2 > 400, 2500 and 10000 GeV2, have been measured with the ZEUS detector at HERA. The data sample of 47.7 pb-1 was collected at a center-of-mass energy of 300 GeV. The cross-section, dσ/dQ2, falls by six orders of magnitude between Q2 = 400 and 40000 GeV2. The predictions of the Standard Model are in very good agreement with the data. Complementing the observations of time-like Z° contributions to fermion-antifermion annihilation, the data provide direct evidence for the presence of Z° exchange in the …

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Measurement Of Multiplicity And Momentum Spectra In The Current And Target Regions Of The Breit Frame In Deep Inelastic Scattering At Hera, J. Breitweg, S. Chekanov, M. Derrick, D. Krakauer, S. Magill, B. Musgrave, J. Repond, R. Stanek, R. Yoshida, Margarita C. K. Mattingly, G. Abbiendi, 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, G. Levi Jan 1999

Measurement Of Multiplicity And Momentum Spectra In The Current And Target Regions Of The Breit Frame In Deep Inelastic Scattering At Hera, J. Breitweg, S. Chekanov, M. Derrick, D. Krakauer, S. Magill, B. Musgrave, J. Repond, R. Stanek, R. Yoshida, Margarita C. K. Mattingly, G. Abbiendi, 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, G. Levi

Faculty Publications

Charged particle production in neutral current deep inelastic scattering (DIS) has been studied using the ZEUS detector. The evolution of the mean multiplicities, scaled momenta and transverse momenta in Q2 and cursive Greek chi for 10 < Q2 < 5120 GeV2 and cursive Greek chi > 6 × 10-4 has been investigated in the current and target fragmentation regions of the Breit frame. Distributions in the target region, using HERA data for the first time, are compared to distributions in the current region. Predictions based on MLLA and LPHD are inconsistent with the data.

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Statistical Analysis Of Lake Ontario Water Levels, Matthew Fetzner Jan 1999

Statistical Analysis Of Lake Ontario Water Levels, Matthew Fetzner

Theses

The regulation of Lake Ontario water level began on April 20, 1960. In recent years, there have been many Lake Ontario residents dissatisfied with the erosion damage to their properties. Many believe that the increase in erosion has been caused by the International St. Lawrence River Board of Control maintaining a water level which is too high. The scope of this thesis was to first identify what the actual change in the lake level has been since regulation began and then to determine how much of this difference could be attributed to regulation and how much should be attributed to …

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