Particle accelerators play a crucial role in scientific research, enabling the study of fundamental physics and materials science, as well as having important medical applications. This study proposes a novel graph learning approach to classify operational beamline configurations as good or bad. By considering the relationships among beamline elements, we transform data from components into a heterogeneous graph.
View Article and Find Full Text PDFThis work investigates the efficacy of deep learning (DL) for classifying C100 superconducting radio-frequency (SRF) cavity faults in the Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Lab. CEBAF is a large, high-power continuous wave recirculating linac that utilizes 418 SRF cavities to accelerate electrons up to 12 GeV. Recent upgrades to CEBAF include installation of 11 new cryomodules (88 cavities) equipped with a low-level RF system that records RF time-series data from each cavity at the onset of an RF failure.
View Article and Find Full Text PDFThe ideal of the self-driving car replaces an error-prone human with an infallible, artificially intelligent driver. This narrative of autonomy promises liberation from the downsides of automobility, even if that means taking control away from autonomous, free-moving individuals. We look behind this narrative to understand the attachments that so-called 'autonomous' vehicles (AVs) are likely to have to the world.
View Article and Find Full Text PDFIEEE Trans Neural Netw Learn Syst
November 2022
Efficient processing of large-scale time-series data is an intricate problem in machine learning. Conventional sensor signal processing pipelines with hand-engineered feature extraction often involve huge computational costs with high dimensional data. Deep recurrent neural networks have shown promise in automated feature learning for improved time-series processing.
View Article and Find Full Text PDFObjective: Information on the relationships between stool characteristics and colonic transit time (CTT) in irritable bowel syndrome (IBS) is limited. Our aims were: (i) to relate stool frequency and consistency to total and segmental CTTs, (ii) to correlate changes in these stool characteristics with changes in CTTs between a baseline assessment and a 12-week assessment, and (iii) to examine the confounding effects of mood on these relationships, in patients with IBS.
Materials And Methods: Twenty-one female patients with IBS underwent, on two occasions 12 weeks apart, a colonic transit study and completed at these times Bristol Stool Form Scale (BSFS) and Bowel Symptoms Severity Rating Scale (BSSRS).
Objective: To identify factors associated with psychiatric morbidity and hazardous alcohol use in Australian doctors.
Design, Setting And Participants: Cross-sectional postal survey of 2999 doctors (including all major specialty groups, trainees and general practitioners) insured with an Australian medical insurance company. The potential for psychiatric morbidity was measured by the General Health Questionnaire (GHQ), and the potential for hazardous alcohol use by the Alcohol Use Disorders Identification Test (AUDIT).
Background: General practitioners' concerns about medicolegal issues have been shown to influence the practice of medicine. This research looks at GPs' beliefs about medicolegal issues and how medicolegal concerns affect their practice.
Methods: A descriptive comparative design was used.
Australas Psychiatry
February 2009
Objectives: The aim of this paper was to explore the relationship between the personality traits of Australian General Practitioners (GPs) and their gender, work practice arrangements, and history of medico-legal matters.
Methods: A cross-sectional self report survey was mailed to 1239 GPs. There were 566 respondents (45.
Objective: To describe the differences in psychological morbidity between Australian general practitioners (GPs) who have experienced a medico-legal matter and those who have not.
Methods: A total of 1,499 GPs were initially invited to participate in the study. Two hundred and sixty requested not to participate, with 1,239 subsequently being sent a survey.
Background: The aim was to examine the temporal relationships over 10 months between cannabis use and symptoms of psychosis and depression in people with schizophrenia and related disorders. The design was a prospective study of 101 patients with schizophrenia and related disorders who were assessed monthly over 10 months on medication compliance, cannabis and other drug use, symptoms of depression and symptoms of psychosis.
Method: Linear regression methods to assess relationships between cannabis use and symptoms of psychosis and depression while adjusting for serial dependence, medication compliance and other demographic and clinical variables.
Objective: To examine the reasons for cannabis use among individuals with psychotic disorders.
Method: Forty-nine people with psychotic disorders in treatment with community health centres in Northern Sydney were interviewed to collect information about their experience of antipsychotic side-effects and their influence on cannabis use. Other information collected on cannabis use included: amount and frequency, effects of use and other general reasons given for use.
Australas Psychiatry
June 2006
Objectives: To assess aspects of medical examination, diagnosis and side-effect monitoring, and to consider the role of routine investigations in this group as recommended by national guidelines.
Method: A retrospective file audit was performed on young people presenting with first episode psychosis (n = 117) over 12 months of treatment contact.
Results: Diagnoses were: first episode psychosis (43%), schizophrenia (16%), drug-induced psychosis (12%), affective psychosis (13%) and brief reactive psychosis (2%).
East Timor (the Democratic Republic of Timor-Leste) occupies the eastern half of the island of Timor, which lies between North Western Australia and the Indonesian archipelago. East Timor has a population of around 860 000. It is predominantly rural and there are few large towns.
View Article and Find Full Text PDFObjective: To examine whether staff training and service restructuring to provide specialized early psychosis services results in improved clinical outcomes for young people with first-episode psychosis.
Method: Staff attended workshops on the treatment of early psychosis throughout 1997-2000 and specialized early psychosis teams began operating between 1998 and 2000 following service restructure. There was no additional funding provided for clinical services, but through the restructure, there was a shift in resources.
Objective: To measure change in services provided to young people with first-episode psychosis following the introduction of specialized early psychosis teams and staff training.
Method: A standardized tool was developed to audit services provided to young people with first-episode psychosis. The tool initially comprised 27 clinical indicators measuring aspects of optimal care derived from the Australian clinical guidelines for early psychosis.
Objective: To contrast the psychiatric and legal construct of psychological trauma, with posttraumatic stress disorder (PTSD) as the reference disorder.
Method: Literature relevant to DSM-IV PTSD definition of a traumatic event (Criterion A) was assessed. This construct was compared with the current legal status for psychological trauma arising from recent judgements of the Australian High Court.