96,675 results match your criteria: "The University of Western Australia; andrew.lucas@uwa.edu.au.[Affiliation]"

Although electrostatic catalysis can enhance the kinetics and selectivity of reactions to produce greener synthetic processes, the highly directional nature of electrostatic interactions has limited widespread application. In this study, the influence of oriented electric fields (OEF) on radical addition and atom abstraction reactions are systematically explored with ion-trap mass spectrometry using structurally diverse distonic radical ions that maintain spatially separated charge and radical moieties. When installed on rigid molecular scaffolds, charged functional groups lock the magnitude and orientation of the internal electric field with respect to the radical site, creating an OEF which tunes the reactivity across the set of gas-phase carbon-centred radical reactions.

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Background: Frozen shoulder (FS) is a debilitating inflammatory condition affecting the shoulder capsule that causes significant pain and stiffness. Its etiology, pathophysiology, and treatment remain poorly understood. Although regarded as self-limiting, FS can have profound implications on the activities of daily living and usually takes 1-4 years to resolve on its own accord.

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Introduction: A lack of national consensus on the roles and responsibilities of Australian memory and cognition clinics contributes to the large variability seen across services. The introduction of guidelines and a quality assessment framework could facilitate greater harmonization and quality improvements.

Methods: We used a modified Delphi process to develop the guidelines.

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Introduction: Melanopsin is a photopigment with roles in mediating sleep and circadian-related processes, which are often disrupted in Alzheimer's disease (AD). Melanopsin also impacts cognition and synaptogenesis. This study investigated the associations between melanopsin genetic variants, sleep, and markers of brain health.

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Large-scale and long-term wildlife research and monitoring using camera traps: a continental synthesis.

Biol Rev Camb Philos Soc

January 2025

Wildlife Observatory of Australia (WildObs), Queensland Cyber Infrastructure Foundation (QCIF), Brisbane, Queensland, 4072, Australia.

Camera traps are widely used in wildlife research and monitoring, so it is imperative to understand their strengths, limitations, and potential for increasing impact. We investigated a decade of use of wildlife cameras (2012-2022) with a case study on Australian terrestrial vertebrates using a multifaceted approach. We (i) synthesised information from a literature review; (ii) conducted an online questionnaire of 132 professionals; (iii) hosted an in-person workshop of 28 leading experts representing academia, non-governmental organisations (NGOs), and government; and (iv) mapped camera trap usage based on all sources.

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Learning to read and interpret tattoos.

Forensic Sci Med Pathol

January 2025

Adelaide School of Biomedicine, The University of Adelaide, Level 2, Room N237, Helen Mayo North, Frome Road, Adelaide, South Australia, 5005, Australia.

Tattooing has been a facet of many civilizations and cultures for millennia with a recent resurgence in popularity in many Western countries. The reasons for tattooing are diverse ranging from simple decorative designs to enforced tattooing of concentration camp inmates. In a forensic context tattoos are frequently observed and may play a role in some cases of identification, even after decomposition, incineration or dismemberment.

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Emotion regulation strategy and its relationship with emotional dysregulation in children with attention-deficit/hyperactivity disorder: behavioral and brain findings.

Eur Child Adolesc Psychiatry

January 2025

NHC Key Laboratory of Mental Health (Peking University), Peking University Sixth Hospital, Institute of Mental Health, Beijing, 100191, China.

Important associations between emotional dysregulation (ED) and ADHD have been identified in adults, with a key manifestation of this being differential use of emotion regulation strategies: reduced use of cognitive reappraisal (CR), but elevated expressive suppression (ES). These associations have been observed at both behavioral and neuroimaging levels. The present study aims to explore the use of CR and ES in children with ADHD, and their relationship to ED.

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About one-third of Australians use the services of complementary and alternative medicine (CAM); but debate about the role of CAM in public healthcare is vociferous. Despite this, the mechanisms driving CAM healthcare choices are not well understood, especially in rural Australia. From 2016 to 2018, 2,679 persons from the Goulburn Valley, northern Victoria, were surveyed, 28% (755) of whom reporting visiting CAM practitioners.

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In simulations of groundwater flow through dipping aquifers, layers of model cells are often "deformed" to follow the top and bottom elevations of the aquifers. When this approach is used in MODFLOW, adjacent cells within the same model layer are vertically offset from one another, and the standard conductance-based (two-point) formulation for flow between cells does not rigorously account for these offsets. The XT3D multi-point flow formulation in MODFLOW 6 is designed to account for geometric irregularities in the grid, including vertical offsets, and to provide accurate results for both isotropic and anisotropic groundwater flow.

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Background: Antenatal care (ANC) coverage in low- and middle-income countries has increased in the past few decades. However, merely increasing care coverage may not enhance maternal and newborn health unless the recommended service components are also provided. Our aim was to assess the quality of ANC and its associated factors in Ethiopia.

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Intercellular mitochondria transfer is an evolutionarily conserved process in which one cell delivers some of their mitochondria to another cell in the absence of cell division. This process has diverse functions depending on the cell types involved and physiological or disease context. Although mitochondria transfer was first shown to provide metabolic support to acceptor cells, recent studies have revealed diverse functions of mitochondria transfer, including, but not limited to, the maintenance of mitochondria quality of the donor cell and the regulation of tissue homeostasis and remodelling.

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Effective energy management is crucial in greenhouse farming to ensure efficient operations and optimal crop growth. This study investigates the energy autonomy-defined as the ratio of on-site energy generation to the total energy demand-of greenhouses equipped with semi-transparent photovoltaic (STPV) systems under two scenarios: with and without a Battery Energy Storage System (BESS). STPV systems are beneficial because they generate energy while still allowing enough light to pass through for healthy plant development.

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Influenza vaccine effectiveness and immunogenicity can be compromised with repeated vaccination. We assessed immunological markers in a cohort of healthcare workers (HCW) from six public hospitals around Australia during 2020-2021. Sera were collected pre-vaccination and ~14 and ~180 days post-vaccination and assessed in haemagglutination inhibition assay against egg-grown vaccine and equivalent cell-grown viruses.

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Providing patients with falls prevention education reduces falls in hospitals, yet there is limited research on what influences successful implementation at the staff, ward and hospital levels. We engaged hospital-based health professionals to identify multi-level barriers and enablers to patient falls education that could influence the implementation of a Safe Recovery program. Purposive sampling was used to recruit hospital staff (n = 40) for focus groups and one-on-one interviews.

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Background: Identifying the modifiable risk factors for childhood mortality using population-attributable fractions (PAFs) estimates can inform public health planning and resource allocation in low- and middle-income countries (LMICs). We estimated PAFs for key population-level modifiable risk factors of neonatal, infant, and under-five mortality in LMICs.

Methods: We used the most recent Demographic and Health Survey data sets (2010-22) from 48 LMICs, encompassing 35 sub-Saharan African countries and 13 countries from South and Southeast Asia (n = 506 989).

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Background: Switching from a conventional to a high-sensitivity cardiac troponin (hs-cTn) assay enables detection of smaller amounts of myocardial damage, but the clinical benefit is unclear. We investigated whether switching to a hs-cTnI assay with a sex-specific 99th centile diagnostic threshold was associated with lower 1-year death or new myocardial infarction (MI) in patients with suspected acute coronary syndrome (ACS).

Methods: This pre-post study included nine tertiary hospitals in Australia.

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Background: Coronary heart disease (CHD) remains a leading cause of mortality and disability worldwide. Approximately half of the patients who have had a prior hospital admission for CHD will have a recurrent coronary event, with the majority of these occurring within 12 months. Despite well-established evidence-based therapies, medication non-adherence is highly prevalent and reasons for medication non-adherence are poorly understood.

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Correction: First detection of Culex tritaeniorhynchus in Western Australia using molecular diagnostics and morphological identification.

Parasit Vectors

January 2025

Environmental Health Directorate, Western Australia Department of Health, 37 Kensington Street, East Perth, Perth, Western Australia, 6004, Australia.

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Solidarity is one of the emerging values in global health ethics, and a few pieces of bioethics literature link it to decoloniality. However, conceptions of solidarity in global health ethics are influenced primarily by Western perspectives, thus suggesting the decolonial needs to include non-Western perspectives. This article explores a decolonial interpretation of solidarity to enrich our understanding of solidarity.

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Background: Brain-computer interface (BCI) offers promising solutions to cognitive enhancement in older people. Despite the clear progress received, there is limited evidence of BCI implementation for rehabilitation. This systematic review addresses BCI applications and challenges in the standard practice of EEG-based neurofeedback (NF) training in healthy older people or older people with mild cognitive impairment (MCI).

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Evaluating the genetic components of growth in ostriches with multi-trait and random regression models.

Br Poult Sci

January 2025

Directorate of Animal Sciences, Western Cape Department of Agriculture, Elsenburg, South Africa.

1. The heritability (h) of liveweight (LW) in ostriches can be highly variable, depending on age at recording. The objective of this study was to consider random regression (RR) as an alternative to the multi-trait (MT) structure for the analysis of repeated measures of LW.

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Background: This study sought to explore the effects of preservice teachers' contact with children with intellectual disabilities on their attitudes. The study was conducted against the backdrop of the exclusion and discrimination experienced by children with intellectual disabilities in Ghanaian schools.

Method: Twenty-two preservice teachers who interned at a special school for children with intellectual disabilities were interviewed before and after their practicums, and the gathered data underwent thematic analysis.

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This study aims to assess the status of health-related quality of life (HRQOL) and its associated factors in people with Type 2 diabetes mellitus (T2DM) in Nepal. HRQOL of 481 participants with T2DM in Kavrepalanchok and Nuwakot was measured using European Quality of life Visual Analogue Scale (EQVAS) and European Quality of life 5 dimensions (EQ5D) index from the EQ5D-3L tool. Associated correlates of T2DM were examined using linear regression analyses.

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Spatial profiling of endoplasmic reticulum stress markers in tumor associated cells predicts patient outcomes in pancreatic cancer.

Neoplasia

January 2025

Children's Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, NSW 2031, Australia; School of Clinical Medicine, Faculty of Medicine & Health, University of New South Wales, Kensington, New South Wales 2031, Australia; UNSW Centre for Childhood Cancer Research, Faculty of Medicine &Health, University of New South Wales, Kensington, New South Wales 2031, Australia; Australian Centre for NanoMedicine, University of New South Wales, Sydney, NSW 2031, Australia. Electronic address:

Introduction: The impact of endoplasmic reticulum (ER) stress in tumor-associated cells, such as cancer associated fibroblasts (CAFs), immune cells and endothelial cells, on patient outcomes in clinical specimens have not been examined. For the first time, we characterized the expression and spatial locations of ER stress markers, BiP and CHOP, in tumor-associated cells and assessed their prognostic significance in a panel of pancreatic ductal adenocarcinoma (PDAC) patient samples.

Methods: Multiplex immunofluorescence was performed on tumor microarrays and images were analyzed using HALO AI software.

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i-Motifs (iMs) are quadruplex nucleic acid conformations that form in cytosine-rich regions. Because of their acidic pH dependence, iMs were thought to form only in vitro. The recent development of an iM-selective antibody, iMab, has allowed iM detection in cells, which revealed their presence at gene promoters and their cell cycle dependence.

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