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2012

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Articles 31 - 60 of 78

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On The Determination Of The Spin Of The Black Hole In Cyg X-1 From X-Ray Reflection Spectra, A. C. Fabian, D. R. Wilkins, J. M. Miller, R. C. Reis, C. S. Reynolds, E. M. Cackett, M. A. Nowak, G. G. Pooley, K. Pottschmidt, J. S. Sanders, R. R. Ross, J. Wilms Jul 2012

On The Determination Of The Spin Of The Black Hole In Cyg X-1 From X-Ray Reflection Spectra, A. C. Fabian, D. R. Wilkins, J. M. Miller, R. C. Reis, C. S. Reynolds, E. M. Cackett, M. A. Nowak, G. G. Pooley, K. Pottschmidt, J. S. Sanders, R. R. Ross, J. Wilms

Physics and Astronomy Faculty Research Publications

The spin of Cygnus X-1 is measured by fitting reflection models to Suzaku data covering the energy band 0.9-400 keV. The inner radius of the accretion disc is found to lie within 2 gravitational radii (rg=GM/c2), and a value of ? is obtained for the dimensionless black hole spin. This agrees with recent measurements using the continuum fitting method by Gou et al. and of the broad iron line by Duro et al. The disc inclination is measured at ?, which is consistent with the recent optical measurement of the binary system inclination by Orosz et …


Physician Communication Skills: Results Of A Survey Of General/Family Practitioners In Newfoundland, F Ashbury, Donald Iverson, Boris Kralj Jun 2012

Physician Communication Skills: Results Of A Survey Of General/Family Practitioners In Newfoundland, F Ashbury, Donald Iverson, Boris Kralj

Don C. Iverson

Purpose: To describe the attitudes related to communication skills, confidence in using commnication skills, and use of communication skills during the physician-patient encounter among a population-based sample of family physicians. Procedures: A mailed survey, distributed to all family physicians and general practitioners currently practicing in Newfoundland. The questionnaire was designed to collect data in five general areas participant demographics, physician confidence in using specific communication strategies, perceived adequacy of time spent by physicians with their patients, physician use of specific communication strategies with the adult patients they saw in the prior week, and physician use of specific communication strategies during …


What Do Older Patients Want? Understanding Older Patients' Attitudes Towards General Practice Trainees, Andrew D. Bonney, Sandra C. Jones, Donald Iverson, Christopher Magee Jun 2012

What Do Older Patients Want? Understanding Older Patients' Attitudes Towards General Practice Trainees, Andrew D. Bonney, Sandra C. Jones, Donald Iverson, Christopher Magee

Don C. Iverson

Context: Older patients constitute an increasing proportion of the caseloads in general practice (GP) training practices, but are relatively reluctant to consult trainees. Understanding their attitudes is a first step in improving older patient-trainee interaction. Objectives: Characterise the attitudes of older patients to GP trainees. Design: Cross-sectional survey; exploratory factor analysis; logistic regression. Setting: Randomised, stratified sample of 38 training practices across five Australian states. Participants: Patients aged 60 years and over (N=911; response rate 47.9%). Instrument: Questionnaire for self-completion: previously piloted and subjected to factor analysis. Main and secondary outcome measures: Identification of attitude factors; patient characteristics predicting high …


Patients' Attitudes To General Practice Registrars: A Review Of The Literature, Andrew Bonney, Lyn Phillipson, Samantha Reis, Sandra Jones, Donald Iverson Jun 2012

Patients' Attitudes To General Practice Registrars: A Review Of The Literature, Andrew Bonney, Lyn Phillipson, Samantha Reis, Sandra Jones, Donald Iverson

Don C. Iverson

Introduction With the population ageing, it is imperative for training practices to provide GP registrars with sound experience in managing the health problems of older persons, especially chronic conditions. However, it is reported that a significant proportion of these patients will be resistant to consulting registrars, with concerns regarding disruption of continuity of care being a significant factor. The challenge for training practices is to identify approaches to engage registrars in the management of older patients whilst maintaining patient satisfaction. This paper presents a review of the literature on patient attitudes to general practice registrars to better understand the nature …


Older Patients' Attitudes To General Practice Registrars: A Qualitative Study, Andrew Bonney, Lyn Phillipson, Sandra Jones, Donald Iverson Jun 2012

Older Patients' Attitudes To General Practice Registrars: A Qualitative Study, Andrew Bonney, Lyn Phillipson, Sandra Jones, Donald Iverson

Don C. Iverson

Background Research suggests that older patients may be reluctant to engage general practice registrars (GPRs) in their care. The authors undertook a qualitative study of the attitudes of older patients to GPRs to investigate this issue. Method Thirty-eight patients aged 60 years and over from three training practices participated in semistructured telephone interviews, which explored patients responses to GPRs. The interviews were recorded, transcribed and analysed using a template analysis approach. Results Analysis of the interviews produced five major themes concerning patient attitudes to GPRs: desire for continuity, desire for access, openness, trust and a desire for meaningful communication. Discussion …


The Conference For General Practice 2009, Andrew Bonney, Lyn Phillipson, Sandra Jones, Donald Iverson Jun 2012

The Conference For General Practice 2009, Andrew Bonney, Lyn Phillipson, Sandra Jones, Donald Iverson

Don C. Iverson

Objectives The medical literature suggests that older patients may be reluctant to engage general practice registrars in their medical care. This can lead to distortions in the clinical caseload of general practice registrars and dissatisfaction for older patients when seeing general practice registrars. The authors undertook a qualitative study of older patients to investigate their attitudes to having general practice registrars involved in their medical care to address this issue. Methods The study was conducted in three general practice (GP) training practices in southeast NSW, Australia. Appropriate ethics approval was obtained before commencing the research. Reception staff handed patients invitations …


General Practice Registrars: Attitudes Of Older Patients, Andrew D. Bonney, Sandra C. Jones, Lyn Phillipson, Donald C. Iverson Jun 2012

General Practice Registrars: Attitudes Of Older Patients, Andrew D. Bonney, Sandra C. Jones, Lyn Phillipson, Donald C. Iverson

Don C. Iverson

Previous research indicates that older patients may be less willing to consult general practice registrars (GPRs), reducing training opportunities in chronic/complex care. This survey explores older patients’ attitudes in order to inform models of interaction that would be acceptable to patients. METHODS Ten training general practices distributed questionnaires for self completion to 50 patients aged 60 years and over. Chi-square, Spearman’s rho and logistic regression were used for analysis. RESULTS The response rate was 47%. Ninetysix percent wanted ongoing contact with their general practitioner if they saw a GPR. Twenty-four percent were comfortable with GPR chronic/complex care, increasing to 73% …


Preparing For An Ageing Population: A Survey Of Older Patients' Attitudes To General Practice Registrars, Andrew D. Bonney, Sandra C. Jones, Lyn Phillipson, Donald C. Iverson Jun 2012

Preparing For An Ageing Population: A Survey Of Older Patients' Attitudes To General Practice Registrars, Andrew D. Bonney, Sandra C. Jones, Lyn Phillipson, Donald C. Iverson

Don C. Iverson

The ageing population makes it imperative to provide appropriate training for general practice registrars (GPRs) in the community-based care of older patients. However, data suggest that older patients may be less willing to consult GPRs for chronic/complex care; adversely affecting training opportunities and potentially the satisfaction of older patients in training practices. This cross-sectional study was undertaken to investigate this concern in the Australian context and develop models of older patient-GPR interaction that are acceptable to patients.


Do Organisational Characteristics Explain The Differences Between Drivers Of Ict Adoption In Rural And Urban General Practices In Australia, Robert C. Macgregor, Peter N. Hyland, Charles Harvie Apr 2012

Do Organisational Characteristics Explain The Differences Between Drivers Of Ict Adoption In Rural And Urban General Practices In Australia, Robert C. Macgregor, Peter N. Hyland, Charles Harvie

Charles Harvie

A number of studies have compared general medical practices in rural locations with those in urban locations. Some of these studies have concentrated on the reasons why a GP might choose to work in a rural or urban setting. Others have examined the type of work required to be undertaken by medical professionals. Increasing use of information and communications technology (ICT) in medical practices has led to some studies examining their use in rural as well as urban settings. However, little if any research has examined whether ICT adoption drivers differ between rural and urban GPs based on their organisational …


A Chandra Survey Of Supermassive Black Holes With Dynamical Mass Measurements, Kayhan Gültekin, Edward M. Cackett, Jon M. Miller, Tiziana Di Matteo, Sera Markoff, Douglas O. Richstone Apr 2012

A Chandra Survey Of Supermassive Black Holes With Dynamical Mass Measurements, Kayhan Gültekin, Edward M. Cackett, Jon M. Miller, Tiziana Di Matteo, Sera Markoff, Douglas O. Richstone

Physics and Astronomy Faculty Research Publications

We present Chandra observations of 12 galaxies that contain supermassive black holes (SMBHs) with dynamical mass measurements. Each galaxy was observed for 30 ks and resulted in a total of 68 point-source detections in the target galaxies including SMBH sources, ultraluminous X-ray sources (ULXs), and extragalactic X-ray binaries. Based on our fits of the X-ray spectra, we report fluxes, luminosities, Eddington ratios, and slope of the power-law spectrum. Normalized to the Eddington luminosity, the 2-10 keV band X-ray luminosities of the SMBH sources range from 10-8 to 10-6, and the power-law slopes are centered at ~2 with …


Indecent Exposure: Fcc V. Fox And The End Of An Era, David Houska Mar 2012

Indecent Exposure: Fcc V. Fox And The End Of An Era, David Houska

Duke Journal of Constitutional Law & Public Policy Sidebar

No abstract provided.


Process-Evaluation Of Tropospheric Humidity Simulated By General Circulation Models Using Water Vapor Isotopologues: 1. Comparison Between Models And Observations, Camille Risi, David Noone, John Worden, Christian Frankenberg, Gabriele Stiller, Michael Kiefer, Bernd Funke, Kaley Walker, Peter Bernath, Matthias Schneider, Debra Wunch, Vanessa Sherlock, Nicholas M. Deutscher, David W. Griffith, Paul O. Wennberg, Kimberly Strong, Dan Smale, Emmanuel Mahieu, Sabine Barthlott, Frank Hase, Omar Garcia, Justus Notholt, Thorsten Warneke, Geoffrey Toon, David Sayres, Sandrine Bony, Jeonghoon Lee, Derek Brown, Ryu Uemura, Christophe Sturm Mar 2012

Process-Evaluation Of Tropospheric Humidity Simulated By General Circulation Models Using Water Vapor Isotopologues: 1. Comparison Between Models And Observations, Camille Risi, David Noone, John Worden, Christian Frankenberg, Gabriele Stiller, Michael Kiefer, Bernd Funke, Kaley Walker, Peter Bernath, Matthias Schneider, Debra Wunch, Vanessa Sherlock, Nicholas M. Deutscher, David W. Griffith, Paul O. Wennberg, Kimberly Strong, Dan Smale, Emmanuel Mahieu, Sabine Barthlott, Frank Hase, Omar Garcia, Justus Notholt, Thorsten Warneke, Geoffrey Toon, David Sayres, Sandrine Bony, Jeonghoon Lee, Derek Brown, Ryu Uemura, Christophe Sturm

Faculty of Science - Papers (Archive)

[1] The goal of this study is to determine how H2O and HDO measurements in water vapor can be used to detect and diagnose biases in the representation of processes controlling tropospheric humidity in atmospheric general circulation models (GCMs). We analyze a large number of isotopic data sets (four satellite, sixteen ground-based remote-sensing, five surface in situ and three aircraft data sets) that are sensitive to different altitudes throughout the free troposphere. Despite significant differences between data sets, we identify some observed HDO/H2O characteristics that are robust across data sets and that can be used to evaluate models. We evaluate …


Discovering Concealment: Defining The Limits Of Equitable Tolling In Section 16(B) Of The Securities Exchange Act, Boris Rappoport Mar 2012

Discovering Concealment: Defining The Limits Of Equitable Tolling In Section 16(B) Of The Securities Exchange Act, Boris Rappoport

Duke Journal of Constitutional Law & Public Policy Sidebar

No abstract provided.


The Threat Of “Clair Motions”: Martel V. Clair And The Standard For Substitution Of Counsel In Federal Habeas Petitions, Lee Czocher Feb 2012

The Threat Of “Clair Motions”: Martel V. Clair And The Standard For Substitution Of Counsel In Federal Habeas Petitions, Lee Czocher

Duke Journal of Constitutional Law & Public Policy Sidebar

No abstract provided.


Williams V. Illinois: Another Look At Expert Testimony And The Confrontation Clause, Libby Greismann Feb 2012

Williams V. Illinois: Another Look At Expert Testimony And The Confrontation Clause, Libby Greismann

Duke Journal of Constitutional Law & Public Policy Sidebar

No abstract provided.


Aspectos Generales Dela Publicidad En México. "La Publicidad De Productos, Servicios, Y Actividades Reguladas Por La Ley General De Salud", Bruno L. Costantini García Feb 2012

Aspectos Generales Dela Publicidad En México. "La Publicidad De Productos, Servicios, Y Actividades Reguladas Por La Ley General De Salud", Bruno L. Costantini García

Bruno L. Costantini García

Introducción a las generalidades de la regulación en materia de publicidad de insumos para el consumo humano (salud) en México.


The Hollow-Face Illusion: Object Specific Knowledge, General Assumptions Or Properties Of The Stimulus, Harold C. Hill, Alan Johnston Jan 2012

The Hollow-Face Illusion: Object Specific Knowledge, General Assumptions Or Properties Of The Stimulus, Harold C. Hill, Alan Johnston

Harold Hill

The hollow-face illusion, in which a mask appears as a convex face, is a powerful example of binocular depth inversion occurring with a real object under a wide range of viewing conditions. Explanations of the illusion are reviewed and six experiments reported. In experiment 1 the detrimental effect of figural inversion, evidence for the importance of familiarity, was found for other oriented objects. The inversion effect held for masks lit from the side (experiment 2). The illusion was stronger for a mask rotated by 90° lit from its forehead than from its chin, suggesting that familiar patterns of shading enhance …


Nt 645 General Epistles, Robert Angelo Traina Jan 2012

Nt 645 General Epistles, Robert Angelo Traina

Syllabi

No abstract provided.


General Epistles Notes, Robert Angelo Traina Jan 2012

General Epistles Notes, Robert Angelo Traina

ATS Class Lectures

Syllabus and notes for Robert Traina's class on the General Epistles.


An Investigation Of Non-Spatial Cognitive Abilities In An Asocial Corvid, The Clark's Nutcracker (Nucifraga Columbiana), Jan K. Tornick Jan 2012

An Investigation Of Non-Spatial Cognitive Abilities In An Asocial Corvid, The Clark's Nutcracker (Nucifraga Columbiana), Jan K. Tornick

Doctoral Dissertations

A great deal of research suggests that the cognitive abilities of birds in the family Corvidae (crows and jays) are comparable in many aspects to that of apes. Scientists have posited competing hypotheses to explain how complex cognitive abilities arise in a species or group of animals. One such hypothesis, the social-intelligence hypothesis, states that the demands of living in a large, dynamic group drive an animal's need for complex cognitive skills. The ecological-intelligence hypothesis, predicts that generalist foragers develop more highly flexible behaviors and a wider cognitive repertoire than specialist foragers. To date, cognitive research on corvids has focused …


Anxious Lives: Tracing The Life Course Of A Medical Diagnosis Through Illness Narratives, Jennifer J. Esala Jan 2012

Anxious Lives: Tracing The Life Course Of A Medical Diagnosis Through Illness Narratives, Jennifer J. Esala

Doctoral Dissertations

This dissertation is a study of medical diagnosis, specifically anxiety disorder diagnosis, from the perspective and through the narratives of people who have been diagnosed. In this study, I address two core research questions. First, how does social materiality (e.g., bodies and objects) contribute to, shape, and lend empirical understanding to the experience of an anxiety disorder and the experience of illness in general? Second, how does medical diagnosis translate from the medical institution into the lives of people who have been diagnosed, and how do those diagnoses transform in and through the social lives of people? To address these …


Essays On The Economics Of Municipal And Household Solid Waste Disposal And Recycling, Christopher Wright Jan 2012

Essays On The Economics Of Municipal And Household Solid Waste Disposal And Recycling, Christopher Wright

Doctoral Dissertations

The sustained increase of municipal solid waste generation is an ongoing management and environmental challenge confronting many local governmental units in the United States. The management problems associated with municipal solid waste generation are attributed to rising levels of solid waste, and the real costs to collect, transport, and dispose solid waste is increasing. The increase in landfill disposal costs, referred to as "tipping-fees", is partially attributed to the regulatory and technological requirements of landfill operations designed to reduce pollution from landfills. In response to these challenges, municipal solid waste managers are evaluating the benefits and costs of alternative programs …


Examining Celestial Polarization With The Gamma Ray Polarimeter Experiment (Grape), Taylor Pyne Connor Jan 2012

Examining Celestial Polarization With The Gamma Ray Polarimeter Experiment (Grape), Taylor Pyne Connor

Doctoral Dissertations

This dissertation describes the development of the Gamma Ray Polarimeter Experiment (GRAPE), which is designed to measure the polarization of astronomical sources from 50 keV to 500 keV, and presents the Crab observation results from the successful 2011 balloon campaign. The successful balloon flight of this instrument took place on September 23rd and 24th, at Fort Sumner, New Mexico (Flight N624). The instrument was at float altitude for twenty-six hours. The Crab Nebula/Pulsar, Cygnus X-1, and the Sun were observed within the collimated field of view of GRAPE. A polarization fraction of 55.3% +/- 35.6% and a polarization position angle …


Observation Of High Iron Charge States In Solar Energetic Particle Events, Zhangbo Guo Jan 2012

Observation Of High Iron Charge States In Solar Energetic Particle Events, Zhangbo Guo

Doctoral Dissertations

The ionic charge states of Solar Energetic Particle (SEP) events provide direct information about the source plasma and the acceleration environment. In this thesis, we mainly build on charge state observation of SEP events during late 1997 to 2000 with from Solar Energetic Particle Ionic Charge Analyzer (SEPICA) on board Advanced Composition Explorer (ACE). We concentrate our effort on the high QFe (≥14) found in the SEP events, and discuss the physical principles of how these elevated charge states are produced. We statistically confirmed the energy dependent charge states found in impulsive SEP events and showed impulsive SEPs are consistent …


Essays On Motor Fuel Taxation And Price Dynamics In The European Union, Aliya Sassi Jan 2012

Essays On Motor Fuel Taxation And Price Dynamics In The European Union, Aliya Sassi

Doctoral Dissertations

When the economic literature refers to characteristics of the motor fuel market in the EU, one has to be cautious in comparing indicators across time and space because of the ongoing enlargement of the Union. This dissertation contributes to a limited empirical literature on motor fuel fiscal competition and discussions on fuel tourism and fiscal policy coordination in Europe. The first essay provides an overview of the EU market from 1994 to 2010 for four major motor fuels and its evolution at every stage of EU expansion. It examines changes in the characteristics and taxation rates of the EU representative …


An Empirical Investigation: How Small To Mid-Sized Enterprises Use Innovation On The Path Toward Ecological Sustainability, Shelley F. Mitchell Jan 2012

An Empirical Investigation: How Small To Mid-Sized Enterprises Use Innovation On The Path Toward Ecological Sustainability, Shelley F. Mitchell

Doctoral Dissertations

Dependence upon the natural environment is redefining the business relationship between ecological, economic, and social systems. In addition, the major market forces of diminishing natural resources, extreme transparency, and increasing social expectations are reshaping a new sustainability path for companies. This empirical investigation explored the phenomenon of sustainability in small to mid-sized enterprises, focusing on the link between innovation and ecological sustainability. In addressing the research questions, an Eco-Sustainability Conceptual Framework was developed and applied to a sample of small to mid-sized enterprises. In addition, the development and use of an Eco-Scorecard helped to identify key performance indicators for measuring …


Perpendicular Ion Heating By Low-Frequency Alfven-Wave Turbulence, Qian Xia Jan 2012

Perpendicular Ion Heating By Low-Frequency Alfven-Wave Turbulence, Qian Xia

Doctoral Dissertations

Determining the mechanisms that heat the solar corona is a fundamental problem in heliospheric physics. One of the proposed models is based on low-frequency Alfven waves (o << O i) launched from the coronal base. Theoretical studies and numerical simulations have shown that Alfven-wave low-beta turbulence primarily cascades to smaller scales perpendicular to the mean magnetic field rather than smaller parallel scales, where beta = 8pip/B 2 is the ratio of the plasma pressure to the magnetic pressure. Because of this, the wave frequencies at small scales remain small compared to the proton cyclotron frequency. In this work, we study the possibility of ion heating by this low-frequency Alfven-wave turbulence in a reduced magnetohydrodynamic (RMHD) simulation. In a low-beta plasma, when an ion's gyroradius is comparable to the wave length in the perpendicular direction, the ion undergoes a random walk in the time-varying electrostatic potential. When the fluctuation amplitude exceeds a certain threshold, this stochastic mechanism provides ion heating in the plane perpendicular to the magnetic field lines. We evaluate the stochastic heating rate as a function of the amplitude of the turbulence and compare our findings to previous theoretical results.


Nonideality In High Concentration Solutions, Ronald Toth Jan 2012

Nonideality In High Concentration Solutions, Ronald Toth

Doctoral Dissertations

Our current understanding of molecular interactions, the kinetics, equilibria, and thermodynamics of biochemical reactions, is based mostly on research conducted in dilute solutions. Recent interest in the implications of true physiological concentrations has led to the development of new tools and techniques. In vivo biological systems differ so significantly from dilute solutions that a model is required to conceptualize them. The excluded volume theory is one such model. In this framework macromolecules are regarded as hard spherical volumes, holding only the property of size, and not those of shape or charge. Alternatively, the proximity energy framework considers molecules as having …


Promoting Sexual Healthcare Within General Practice, Ann Dadich, Hassan Hosseinzadeh, Penny Abbott, Jenny Reath, Wendy Hu, Tim Usherwood, Melissa Kang, Carolyn Murray Jan 2012

Promoting Sexual Healthcare Within General Practice, Ann Dadich, Hassan Hosseinzadeh, Penny Abbott, Jenny Reath, Wendy Hu, Tim Usherwood, Melissa Kang, Carolyn Murray

Faculty of Social Sciences - Papers (Archive)

Poster presented at the 2012 Primary Health Care Research Conference, 18-20 July 2012, Canberra, Australia


Enhancing Sexual Healthcare Within General Practice, Ann Dadich, Hassan Hosseinzadeh, Penny Abbott, Jenny Reath, Wendy Hu, Tim Usherwood, Melissa Kang, Carolyn Murray, K Reakes Jan 2012

Enhancing Sexual Healthcare Within General Practice, Ann Dadich, Hassan Hosseinzadeh, Penny Abbott, Jenny Reath, Wendy Hu, Tim Usherwood, Melissa Kang, Carolyn Murray, K Reakes

Faculty of Social Sciences - Papers (Archive)

Poster abstract presented at IUSTI World Congress, 15-17 October 2012, Melbourne, Australia