Publications by authors named "Nicholas Ralph"

Neural action potentials (APs) are difficult to interpret as signal encoders and/or computational primitives. Their relationships with stimuli and behaviors are obscured by the staggering complexity of nervous systems themselves. We can reduce this complexity by observing that "simpler" neuron-less organisms also transduce stimuli into transient electrical pulses that affect their behaviors.

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Objectives: To develop a consensus on evidence-based principles and recommendations for perioperative hypothermia prevention in the Australian context.

Design: This study was informed by CAN-IMPLEMENT using the ADAPTE process: (1) formation of a multidisciplinary development team; (2) systematic search process identifying existing guidance for perioperative hypothermia prevention; (3) appraisal using the AGREE II Rigor of Development domain; (4) extraction of recommendations from guidelines meeting a quality threshold using the AGREE-REX tool; (5) review of draft principles and recommendations by multidisciplinary clinicians nationally and (6) subsequent round of discussion, drafting, reflection and revision by the original panel member team.

Setting: Australian perioperative departments.

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Background: Metabolic syndrome (MetS) is characterised by the presence of at least three of the five following components: insulin resistance, obesity, chronic hypertension, elevated serum triglycerides, and decreased high-density lipoprotein cholesterol concentrations. It is estimated to affect 1 in 3 people around the globe and is reported to affect 46% of surgical patients. For people with MetS who undergo surgery, an emerging body of literature points to significantly poorer postoperative outcomes compared with nonaffected populations.

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Objectives: Qualitative studies nested within clinical trials can provide insight into the treatment experience, how this evolves over time and where improved supportive care is required. The purpose of this qualitative study is to describe the lived experiences of men with advanced prostate cancer participating in the TheraP trial; a randomised trial of 177Lu-PSMA-617 compared with cabazitaxel chemotherapy.

Methods: Fifteen men with advanced prostate cancer were recruited from the TheraP clinical trial with interviews conducted at three timepoints during the trial.

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Earth orbit is a limited natural resource that hosts a vast range of vital space-based systems that support the international community's national, commercial and defence interests. This resource is rapidly becoming depleted with over-crowding in high demand orbital slots and a growing presence of space debris. We propose the Fast Iterative Extraction of Salient targets for Tracking Asynchronously (FIESTA) algorithm as a robust, real-time and reactive approach to optical Space Situational Awareness (SSA) using Event-Based Cameras (EBCs) to detect, localize, and track Resident Space Objects (RSOs) accurately and timely.

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Objectives: Despite the widely publicised health benefits of participation in bowel cancer screening, only 43.5% of recipients participate in the Australian National Bowel Cancer Screening Program (NBCSP). Through consultation with kit recipients, this study aimed to identify features of home bowel screening kits that could be modified to increase their use.

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Neuromorphic engineering aims to build (autonomous) systems by mimicking biological systems. It is motivated by the observation that biological organisms-from algae to primates-excel in sensing their environment, reacting promptly to their perils and opportunities. Furthermore, they do so more resiliently than our most advanced machines, at a fraction of the power consumption.

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Background: Partners of men living with prostate cancer (PCa) can experience a variety of unmet needs that are largely unaddressed by health care professionals. There is limited evidence to suggest which approach may be most effective in supporting partners' unmet needs and further research is required to determine how to provide support to caregivers and how technology solutions can be designed.

Objective: This study aims to explore the experience of partners of men living with PCa and their perceptions of the potential role of information technology in supporting their needs.

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Theory-based, user-informed interventions are needed to increase the low participation rates of population-based faecal occult blood test (FOBT) bowel cancer screening. This study investigated the theoretical fit of the health action process approach (HAPA) for home FOBT screening and measured screening invitees' attitudes towards different intervention strategies. A cross-sectional sample (n = 377), aged 50-74 years, participated in this study.

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The purpose of this systematic review and synthesis of studies reporting qualitative data was to understand the gendered experiences of female partners of prostate cancer survivors to inform psychosocial support for women. We searched Medline, PsycINFO, EMBASE, AMED, CINAHL, Cochrane Database of Systematic Reviews, and Sociological Abstracts for articles on 15 and 16 April 2019, and again on 30 November 2020. English language articles published in peer-reviewed journals were included if they reported solely on findings describing the perspectives of the female partners.

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Objectives: Nested qualitative studies within clinical trials provide the opportunity to better understand participant experiences of participation and identify areas where improved support is required. The purpose of this qualitative study is to describe the lived experiences of men with advanced prostate cancer participating in the TheraP trial; a randomised trial of Lu-PSMA-617 compared with cabazitaxel chemotherapy.

Methods: Fifteen men with advanced prostate cancer were recruited from the TheraP clinical trial and interviewed at three time points during the trial.

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Aims And Objectives: To report patient and family intensive care experiences using the Measuring the Intensive Care Experience (MICE) tool across two intensive care units (ICU).

Background: The patient and family experience of care is an important indicator for quality improvement of ICUs, yet few studies evaluate both patient and family experiences in relation to overall care quality as well as specifically measuring quality of medical care, nursing care and organisational care as well as overall experience of the quality of intensive care.

Design: A cross-sectional survey.

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Objective: To develop and test a psychometric instrument for measuring common barriers to completing and returning home bowel cancer screening kits.

Methods: One hundred and ten items were reviewed by an expert panel (n = 15) and presented in an online cross-sectional survey with 427 Australian adults. Exploratory factor analysis was used to identify an optimal factor solution of latent barrier types and aggregated factor scores were examined and compared between demographic groups.

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Objective: To examine the health services experience of patients with cancer from regional and remote Australia using the Australian National Cancer Control Indicators (NCCI) guidelines as an assessment framework.

Design: Cross-sectional.

Setting: Queensland non-for-profit cancer accommodation lodges.

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Objectives: To measure rates of detection via screening, perceived self-imposed delays in seeking medical attention, and support seeking in a sample of regional and remote people with a cancer diagnosis and to test whether an association exists between these behaviours and minimising problems and resignation, a need for self-control and reliance and fatalism. Correlations and binary logistic regressions were conducted to test the associations between demographic characteristics, attitudes and behaviours.

Results: Females were more likely to have had their cancer detected via screening (OR = 10.

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Background: Clinical trials are essential for the advancement of cancer treatments; however, participation by patients is suboptimal. Currently, there is a lack of synthesized qualitative review evidence on the patient experience of trial entry from which to further develop decision support. The aim of this review is to synthesise literature reporting experiences of participants when deciding to enrol in a cancer clinical trial in order to inform practice.

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Bowel cancer is the third most commonly diagnosed cancer and the third most common cause of cancer-related death, with 1,849,518 new cases of bowel diagnosed and 880,792 deaths reported globally in 2018 alone. Survival can be improved through early detection via national mail-out bowel cancer screening programs; however, participation remains low in many countries. Behavior change is therefore required to increase participation.

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Objective: To develop contemporary and inclusive prostate cancer survivorship guidelines for the Australian setting.

Participants And Methods: A four-round iterative policy Delphi was used, with a 47-member expert panel that included leaders from key Australian and New Zealand clinical and community groups and consumers from diverse backgrounds, including LGBTQIA people and those from regional, rural and urban settings. The first three rounds were undertaken using an online survey (94-96% response) followed by a fourth final face-to-face panel meeting.

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Unsupervised feature extraction algorithms form one of the most important building blocks in machine learning systems. These algorithms are often adapted to the event-based domain to perform online learning in neuromorphic hardware. However, not designed for the purpose, such algorithms typically require significant simplification during implementation to meet hardware constraints, creating trade offs with performance.

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Background: Surgical site infections (SSIs) are among the most common healthcare-associated infections. Under-nutrition is an important risk factor for SSIs and can lead to delayed wound healing and longer hospital stays. Oral nutritional supplements are prescribed to reduce the risk of infection and improve health status, but data from randomised controlled trials (RCTs) have shown mixed results.

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This study aimed to identify whether cancer-related health behaviours including participation in cancer screening vary by geographic location in Australia. Data were obtained from the 2014-2015 Australian National Health Survey, a computer-assisted telephone interview that measured a range of health-related issues in a sample of randomly selected households. Chi-square tests and adjusted odds ratios from logistic regression models were computed to assess the association between residential location and cancer-related health behaviours including cancer screening participation, alcohol consumption, smoking, exercise, and fruit and vegetable intake, controlling for age, socio-economic status (SES), education, and place of birth.

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Objective: To describe contemporary consumer experiences and priorities of prostate cancer survivorship to inform the development of survivorship guidelines.

Method: In a cross-sectional qualitative design, semi-structured interviews were undertaken with fifty prostate cancer support group leaders (50% response) across urban and rural/regional Australia. An interpretative phenomenological approach was used to identify participants' experiences and priorities of survivorship.

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Purpose: To identify barriers and corresponding solutions for implementing a telephone-based, nurse-led supportive care intervention for men with advanced prostate cancer.

Participants & Setting: 21 healthcare professionals with an average 15.81 years of experience in diverse prostate cancer care settings.

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Background: Metabolic syndrome (MetS) is defined as an accumulation of risk factors that include chronic hypertension, dyslipidaemia, insulin resistance and obesity and leads to an increased risk for diabetes, cardiovascular disease and stroke. MetS is widespread and estimated to affect up to a quarter of the global population. Patients with MetS who undergo surgery are associated with an increased risk of postoperative complications when compared with patients with a non-MetS profile.

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Aims & Objectives: To describe the prostate cancer survivorship experience and priorities from the perspective of prostate cancer specialist nurses.

Background: Specialist nurses are providing long-term survivorship care to men and their partners however, few prostate cancer survivorship interventions are effective and priorities for nurse-led survivorship care are poorly understood.

Design: A three-round modified Delphi approach.

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