Publications by authors named "D P O'Brien"
Introduction: 'Neurophobia' is a well reported phenomenon in the literature where in medical students and junior doctors have an inherent nervousness or 'fear' of neurology and neurosurgery
Research Question: Why do less medical students choose neurology and neurosurgery as a career and identify if neurophobia is an ingrained belief or learned behaviour?
Materials And Methods: We developed a questionnaire to assess medical student views and beliefs in connection with a career in neurosurgery. Specifically we examined the following domains: considering a career in neurology and neurosurgery, confidence with neuro anatomy and pathology, traits associated with neurosurgeons and neurologists and finally, their perceived barriers to a neuro career.
Results: 264 medical students completed the survey.
Natural capital accounting can help farmers and producers meet global demands to disclose supply chain impacts on biodiversity and to reverse biodiversity declines in farmland. To date, methods have been limited in their ability to reliably represent biodiversity, especially fauna, and are typically prepared at the regional scale, not at the farm scale - the scale at which many decisions that impact habitats for species are made. We surveyed birds at 1155 sites across 50 farms (total area = 135,890 ha) in south-eastern Australia to relate site-level species richness of groups of birds to spatially discrete ecosystem condition states that are based on the structure and composition of vegetation and to develop a framework for farm-scale biodiversity accounting.
View Article and Find Full Text PDFArticle Synopsis
- High-grade follicular cell-derived non-anaplastic thyroid carcinomas are rare tumors, particularly in patients under 21, and are more commonly diagnosed in older adults.
- A study focused on 15 patients aged 9-20 revealed various classifications of thyroid carcinoma, including poorly differentiated and differentiated high-grade types, with specific genetic alterations noted, especially in the DICER1 and TP53 genes.
- Immunohistochemistry tests indicated the presence of BRAF V600E mutations and PTEN alterations, highlighting the molecular complexity of these thyroid cancers in younger populations.
Human activity influence Earth's environment, including the space environment hundreds to thousands of kilometers above the Earth. One direct evidence is that the 19.8 kHz electromagnetic signals launched by the North West Cape (NWC) transmitter station in Australia produce a wisp-like energy distribution of precipitating energetic electrons in Earth's inner radiation belt, observed by many Low Earth Orbiting satellites.
View Article and Find Full Text PDFArticle Synopsis
- Limb salvage after traumatic lower extremity (LE) injury often requires blood transfusions to improve tissue perfusion, but decision-making about transfusions can affect flap survival.
- A study at a trauma center from 2007 to 2023 reviewed 234 patients, comparing those who received transfusions (Tf+) to those who did not (Tf-), finding higher rates of complications like partial flap necrosis and infections in the Tf+ group.
- The results indicated that blood transfusions significantly increased the risk of flap necrosis by over five times and suggest that surgeons should adopt a more conservative approach to transfusions in these cases to improve outcomes.