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Full-Text Articles in Social and Behavioral Sciences

Development And Validation Of A Written Credentialing Examination For Overseas-Educated Dietitians, Neville G. Chiavaroli, Eleanor J. Beck, Catherine Itsiopoulos, Paul Wilkinson, Kay Gibbons, Claire Palermo Jan 2018

Development And Validation Of A Written Credentialing Examination For Overseas-Educated Dietitians, Neville G. Chiavaroli, Eleanor J. Beck, Catherine Itsiopoulos, Paul Wilkinson, Kay Gibbons, Claire Palermo

Faculty of Science, Medicine and Health - Papers: part A

Aim Health professionals seeking employment in foreign countries are commonly required to undertake competency assessment in order to practice. The present study aims to outline the development and validation of a written examination for Dietetic Skills Recognition (DSR), to assess the knowledge, skills, capabilities and professional judgement of overseas-educated dietitians against the competency standards applied to dietetic graduates in Australia. Methods The present study reviews the design, rationale, validation and outcomes of a multiple choice question (MCQ) written examination for overseas-educated dietitians based on 5 years of administration. The validity of the exam is evaluated using Messick's validity framework ...


Intervention Among Suicidal Men: Future Directions For Telephone Crisis Support Research, Tara Hunt, Coralie J. Wilson, Alan Woodward, Peter Caputi, Ian G. Wilson Jan 2018

Intervention Among Suicidal Men: Future Directions For Telephone Crisis Support Research, Tara Hunt, Coralie J. Wilson, Alan Woodward, Peter Caputi, Ian G. Wilson

Faculty of Science, Medicine and Health - Papers: part A

Telephone crisis support is a confidential, accessible, and immediate service that is uniquely set up to reduce male suicide deaths through crisis intervention. However, research focusing on telephone crisis support with suicidal men is currently limited. To highlight the need to address service delivery for men experiencing suicidal crisis, this perspective article identifies key challenges facing current telephone crisis support research and proposes that understanding of the role of telephone crisis helplines in supporting suicidal men may be strengthened by careful examination of the context of telephone crisis support, together with the impact this has on help-provision for male suicidal ...


Validation And Comparison Of A Model Of The Effect Of Sea-Level Rise On Coastal Wetlands, Laura Mogensen, Kerrylee Rogers Jan 2018

Validation And Comparison Of A Model Of The Effect Of Sea-Level Rise On Coastal Wetlands, Laura Mogensen, Kerrylee Rogers

Faculty of Science, Medicine and Health - Papers: part A

Models are used to project coastal wetland distribution under future sea-level rise scenarios to assist decision-making. Model validation and comparison was used to investigate error and uncertainty in the Sea Level Affecting Marshes Model, a readily available model with minimal validation, particularly for wetlands beyond North America. Accurate parameterisation is required to improve the performance of the model, and indeed any spatial model. Consideration of tidal attenuation further enhances model performance, particularly for coastal wetlands located within estuaries along wave-dominated coastlines. The model does not simulate vegetation changes that are known to occur, particularly when sedimentation exceeds rates of sea-level ...


Investigating Compound Flooding In An Estuary Using Hydrodynamic Modelling: A Case Study From The Shoalhaven River, Australia, Kristian Kumbier, Rafael Cabral Carvalho, Athanasios T. Vafeidis, Colin D. Woodroffe Jan 2018

Investigating Compound Flooding In An Estuary Using Hydrodynamic Modelling: A Case Study From The Shoalhaven River, Australia, Kristian Kumbier, Rafael Cabral Carvalho, Athanasios T. Vafeidis, Colin D. Woodroffe

Faculty of Science, Medicine and Health - Papers: part A

Many previous modelling studies have considered storm-tide and riverine flooding independently, even though joint-probability analysis highlighted significant dependence between extreme rainfall and extreme storm surges in estuarine environments. This study investigates compound flooding by quantifying horizontal and vertical differences in coastal flood risk estimates resulting from a separation of storm-tide and riverine flooding processes. We used an open-source version of the Delft3D model to simulate flood extent and inundation depth due to a storm event that occurred in June 2016 in the Shoalhaven Estuary, south-eastern Australia. Time series of observed water levels and discharge measurements are used to force model ...


Finding A Space For Women: The British Medical Association And Women Doctors In Australia, 1880-1939, Louella R. Mccarthy Jan 2018

Finding A Space For Women: The British Medical Association And Women Doctors In Australia, 1880-1939, Louella R. Mccarthy

Faculty of Science, Medicine and Health - Papers: part A

This paper examines the experiences of women in one professional organisation - the British Medical Association in Australia - during a significant period in the development of such bodies. In doing so it offers an opportunity to consider the relationship between professional societies and the construction of a gendered profession. For the medical profession in particular the time-frame of this study, from the 1880s to the 1930s, has been regarded by scholars as especially important. In this period various features of medical professionalism came to prominence: the status and authority of doctors, the processes of formally registering medical credentials, and the scope ...


Health Behind Bars: Can Exploring The History Of Prison Health Systems Impact Future Policy?, Kathryn M. Weston, Louella R. Mccarthy, Isobelle Barrett Meyering, Stephen Hampton, Tobias Mackinnon Jan 2018

Health Behind Bars: Can Exploring The History Of Prison Health Systems Impact Future Policy?, Kathryn M. Weston, Louella R. Mccarthy, Isobelle Barrett Meyering, Stephen Hampton, Tobias Mackinnon

Faculty of Science, Medicine and Health - Papers: part A

The value of history is, indeed, not scientific but moral … it prepares us to live more humanely in the present, and to meet rather than to foretell, the future - Carl Becker. Becker's quote reminds us of the importance of revealing and understanding historical practices in order to influence actions in the future. There are compelling reasons for uncovering this history, in particular to better inform government policy makers and health advocates, and to address the impacts of growing community expectations to 'make the punishment fit the crime'.


Online Ozonolysis Combined With Ion Mobility-Mass Spectrometry Provides A New Platform For Lipid Isomer Analyses, Berwyck L. J Poad, Xueyun Zheng, Todd W. Mitchell, Richard D. Smith, Erin S. Baker, Stephen J. Blanksby Jan 2018

Online Ozonolysis Combined With Ion Mobility-Mass Spectrometry Provides A New Platform For Lipid Isomer Analyses, Berwyck L. J Poad, Xueyun Zheng, Todd W. Mitchell, Richard D. Smith, Erin S. Baker, Stephen J. Blanksby

Faculty of Science, Medicine and Health - Papers: part A

One of the most significant challenges in contemporary lipidomics lies in the separation and identification of lipid isomers that differ only in site(s) of unsaturation or geometric configuration of the carbon-carbon double bonds. While analytical separation techniques including ion mobility spectrometry (IMS) and liquid chromatography (LC) can separate isomeric lipids under appropriate conditions, conventional tandem mass spectrometry cannot provide unequivocal identification. To address this challenge, we have implemented ozone-induced dissociation (OzID) in-line with LC, IMS, and high resolution mass spectrometry. Modification of an IMS-capable quadrupole time-of-flight mass spectrometer was undertaken to allow the introduction of ozone into the high-pressure ...


Patterns Of Signs That Telephone Crisis Support Workers Associate With Suicide Risk In Telephone Crisis Line Callers, Tara Hunt, Coralie J. Wilson, Peter Caputi, Ian G. Wilson, Alan Woodward Jan 2018

Patterns Of Signs That Telephone Crisis Support Workers Associate With Suicide Risk In Telephone Crisis Line Callers, Tara Hunt, Coralie J. Wilson, Peter Caputi, Ian G. Wilson, Alan Woodward

Faculty of Science, Medicine and Health - Papers: part A

Signs of suicide are commonly used in suicide intervention training to assist the identification of those at imminent risk for suicide. Signs of suicide may be particularly important to telephone crisis-line workers (TCWs), who have little background information to identify the presence of suicidality if the caller is unable or unwilling to express suicidal intent. Although signs of suicide are argued to be only meaningful as a pattern, there is a paucity of research that has examined whether TCWs use patterns of signs to decide whether a caller might be suicidal, and whether these are influenced by caller characteristics such ...


Diagnosing Copd And Supporting Smoking Cessation In General Practice: Evidenceepractice Gaps, Jenifer Liang, Michael J. Abramson, Nicholas Arnold Zwar, Grant Russell, Anne E. Holland, Billie Bonevski, Ajay Mahal, Kirsten Phillips, Paula Eustace, Eldho Paul, Sally Wilson, Johnson George Jan 2018

Diagnosing Copd And Supporting Smoking Cessation In General Practice: Evidenceepractice Gaps, Jenifer Liang, Michael J. Abramson, Nicholas Arnold Zwar, Grant Russell, Anne E. Holland, Billie Bonevski, Ajay Mahal, Kirsten Phillips, Paula Eustace, Eldho Paul, Sally Wilson, Johnson George

Faculty of Science, Medicine and Health - Papers: part A

Objectives: To review the accuracy of diagnoses of chronic obstructive pulmonary disease (COPD) in primary care in Australia, and to describe smokers' experiences with and preferences for smoking cessation. Design, setting and participants: Patients were invited to participate if they were at least 40 years old and had visited participating general practice clinics in Melbourne at least twice during the previous 12 months, reported being current or ex-smokers with a smoking history of at least 10 pack-years, or were being managed for COPD. Interviews based on a structured questionnaire and case finding (FEV 1 /FEV 6 measurement) were followed, when ...


Characteristics Of Indigenous Primary Health Care Service Delivery Models: A Systematic Scoping Review, Stephen Harfield, Carol Davy, Alexa Mcarthur, Zachary Munn, Alex Brown, Ngiare J. Brown Jan 2018

Characteristics Of Indigenous Primary Health Care Service Delivery Models: A Systematic Scoping Review, Stephen Harfield, Carol Davy, Alexa Mcarthur, Zachary Munn, Alex Brown, Ngiare J. Brown

Faculty of Science, Medicine and Health - Papers: part A

Indigenous populations have poorer health outcomes compared to their non-Indigenous counterparts. The evolution of Indigenous primary health care services arose from mainstream health services being unable to adequately meet the needs of Indigenous communities and Indigenous peoples often being excluded and marginalised from mainstream health services. Part of the solution has been to establish Indigenous specific primary health care services, for and managed by Indigenous peoples. There are a number of reasons why Indigenous primary health care services are more likely than mainstream services to improve the health of Indigenous communities. Their success is partly due to the fact that ...


Serum Ncam Levels And Cognitive Deficits In First Episode Schizophrenia Patients Versus Health Controls, Hui-Mei An, Luping Zhou, Yinghua Yu, Hongzhen Fan, Fengmei Fan, Shu-Ping Tan, Zhi-Ren Wang, Zehra Boz, Jing Shi, Fu-De Yang, Xiang Yang Zhang, Yunlong Tan, Xu-Feng Huang Jan 2018

Serum Ncam Levels And Cognitive Deficits In First Episode Schizophrenia Patients Versus Health Controls, Hui-Mei An, Luping Zhou, Yinghua Yu, Hongzhen Fan, Fengmei Fan, Shu-Ping Tan, Zhi-Ren Wang, Zehra Boz, Jing Shi, Fu-De Yang, Xiang Yang Zhang, Yunlong Tan, Xu-Feng Huang

Faculty of Science, Medicine and Health - Papers: part A

Background: Neural cell adhesion molecule (NCAM) is a glycoprotein and plays an important role in cell-cell adhesion, neural migration, neurite outgrowth, synaptic plasticity and brain development. We investigated the relationship between the serum NCAM concentration and cognitive deficit in first episode drug naïve schizophrenia (FES) patients.

Methods: Thirty FES patients and thirty healthy controls were recruited for this study. Psychiatric symptoms were assessed by the positive and negative syndrome scale (PANSS). Cognitive functions were assessed by measurement and treatment research to improve cognition in schizophrenia (MATRICS) and consensus cognitive battery (MCCB). Serum levels of NCAM were determined by ELISA.

Results ...


Healthiness Of Food And Beverages For Sale At Two Public Hospitals In New South Wales, Australia, Carrie Tsai, Erika Svensen, Victoria M. Flood, Yasmine Probst, Kathryn Reilly, Stephen Corbett, Jason H. Y Wu Jan 2018

Healthiness Of Food And Beverages For Sale At Two Public Hospitals In New South Wales, Australia, Carrie Tsai, Erika Svensen, Victoria M. Flood, Yasmine Probst, Kathryn Reilly, Stephen Corbett, Jason H. Y Wu

Faculty of Science, Medicine and Health - Papers: part A

(1) Background: Our aim was to conduct objective, baseline food environment audits of two major western Sydney public hospitals and compare them to recently revised state nutritional guidelines.

(2) Methods: A cross-sectional assessment was conducted (June-July2017) across 14 fixed food outlets and 70 vending machines in two hospitals using an audit tool designed to assess the guideline's key food environment parameters of availability, placement, and promotion of 'Everyday' (healthy) and 'Occasional' (less healthy) products.

(3) Results: Availability: Overall, Everyday products made up 51% and 44% of all products available at the two hospitals. Only 1/14(7%) fixed outlets ...


Dna Polymerase Iv Primarily Operates Outside Of Dna Replication Forks In Escherichia Coli, Sarah Henrikus, Elizabeth A. Wood, John P. Mcdonald, Michael M. Cox, Roger Woodgate, Myron F. Goodman, Antoine M. Van Oijen, Andrew Robinson Jan 2018

Dna Polymerase Iv Primarily Operates Outside Of Dna Replication Forks In Escherichia Coli, Sarah Henrikus, Elizabeth A. Wood, John P. Mcdonald, Michael M. Cox, Roger Woodgate, Myron F. Goodman, Antoine M. Van Oijen, Andrew Robinson

Faculty of Science, Medicine and Health - Papers: part A

In Escherichia coli, damage to the chromosomal DNA induces the SOS response, setting in motion a series of different DNA repair and damage tolerance pathways. DNA polymerase IV (pol IV) is one of three specialised DNA polymerases called into action during the SOS response to help cells tolerate certain types of DNA damage. The canonical view in the field is that pol IV primarily acts at replisomes that have stalled on the damaged DNA template. However, the results of several studies indicate that pol IV also acts on other substrates, including single-stranded DNA gaps left behind replisomes that re-initiate replication ...


Single-Grain Dating Of Potassium-Rich Feldspar Grains: Towards A Global Standardised Growth Curve For The Post-Ir Irsl Signal, Bo Li, Zenobia Jacobs, Richard G. Roberts, Sheng-Hua Li Jan 2018

Single-Grain Dating Of Potassium-Rich Feldspar Grains: Towards A Global Standardised Growth Curve For The Post-Ir Irsl Signal, Bo Li, Zenobia Jacobs, Richard G. Roberts, Sheng-Hua Li

Faculty of Science, Medicine and Health - Papers: part A

Potassium-rich feldspar (K-feldspar) grains were extracted from 28 sediment samples from sites in Asia, Europe and Africa and the dose response curves - or growth curves - were constructed from the post-infrared infrared stimulated luminescence (pIRIR) signals emitted by individual grains. The samples exhibit large between-grain variation in both pIRIR signal intensity and the shape of the corresponding growth curves; the latter can be largely explained as a result of measurement uncertainties, including counting statistics and instrumental irreproducibility. This between-grain variation can be reduced by applying a least-squares normalisation (LS-normalisation) procedure, which allows a common growth curve - or global standardised growth curve ...


Positive Ageing On Our Mind - An Initiative Called Afia (Age Friendly Illawarra Alliance), Lorna Moxham Jan 2018

Positive Ageing On Our Mind - An Initiative Called Afia (Age Friendly Illawarra Alliance), Lorna Moxham

Faculty of Science, Medicine and Health - Papers: part A

Ageing is everyone's business, after all, none of us are getting younger. This assertion is reflected in the nursing workforce with the Department of Health telling us that the overall ageing workforce is reflected in both the increasing average age of nurses from 44.3 years in 2009 to 44.6 years in 2012 and the increasing percentage of those aged 55 years and over from 19.8% in 2009 to 23.1% in 2012.


Exercise And Psychological Benefits For Older People, Rebekkah Middleton, Lorna Moxham, Dominique R. Parrish Jan 2018

Exercise And Psychological Benefits For Older People, Rebekkah Middleton, Lorna Moxham, Dominique R. Parrish

Faculty of Science, Medicine and Health - Papers: part A

The literature establishes that older people benefit not only physically, but cognitively and socially from being engaged in community recreational activities. Community recreational activities support healthy ageing (Young et al. 2015 p2), and allow older people to maintain cognitive abilities, improve self-belief, and quality of life indicators (Balducci et al. 2014).


Does Walkability Contribute To Geographic Variation In Psychosocial Distress? A Spatial Analysis Of 91,142 Members Of The 45 And Up Study In Sydney, Australia, Darren J. Mayne, Geoffrey Morgan, Bin B. Jalaludin, Adrian E. Bauman Jan 2018

Does Walkability Contribute To Geographic Variation In Psychosocial Distress? A Spatial Analysis Of 91,142 Members Of The 45 And Up Study In Sydney, Australia, Darren J. Mayne, Geoffrey Morgan, Bin B. Jalaludin, Adrian E. Bauman

Faculty of Science, Medicine and Health - Papers: part A

Walkability describes the capacity of the built environment to promote walking, and has been proposed as a potential focus for community-level mental health planning. We evaluated this possibility by examining the contribution of area-level walkability to variation in psychosocial distress in a population cohort at spatial scales comparable to those used for regional planning in Sydney, Australia. Data on psychosocial distress were analysed for 91,142 respondents to the 45 and Up Study baseline survey between January 2006 and April 2009. We fit conditional auto regression models at the postal area level to obtain smoothed "disease maps" for psychosocial distress ...


Consumers’ Perspectives Of The Meaning Of Safety In Acute Mental Health Inpatient Services, Natalie A. Cutler, Lorna Moxham, Moira Stephens Jan 2018

Consumers’ Perspectives Of The Meaning Of Safety In Acute Mental Health Inpatient Services, Natalie A. Cutler, Lorna Moxham, Moira Stephens

Faculty of Science, Medicine and Health - Papers: part A

Background and Aim: Safety is a priority in the acute mental health inpatient setting (ACQSHC 2014). Safety is commonly represented in government policy as the reduction or elimination of risk (AIHW 2018). Defining safety as the reduction or elimination of risk means this is where funding and resources are likely to be directed. This has limitations however, as it can lead to environments and processes considered by mental health services to be safe, but are not aligned with what people with lived experience of mental illness deem to be safe (Cutler, Moxham & Stephens 2015). This PhD study explored the ways ...


Dietary Docosahexaenoic Acid And Arachidonic Acid In Early Life: What Is The Best Evidence For Policymakers?, Stewart Forsyth, Philip C. Calder, Francis Zotor, Paul Amuna, Barbara J. Meyer, Bruce Holub Jan 2018

Dietary Docosahexaenoic Acid And Arachidonic Acid In Early Life: What Is The Best Evidence For Policymakers?, Stewart Forsyth, Philip C. Calder, Francis Zotor, Paul Amuna, Barbara J. Meyer, Bruce Holub

Faculty of Science, Medicine and Health - Papers: part A

Background: A wealth of information on the functional roles of docosahexaenoic acid (DHA) and arachidonic acid (ARA) from cellular, animal, and human studies is available. Yet, there remains a lack of cohesion in policymaking for recommended dietary intakes of DHA and ARA in early life. This is predominantly driven by inconsistent findings from a relatively small number of randomised clinical trials (RCTs), which vary in design, methodology, and outcome measures, all of which were conducted in high-income countries. It is proposed that this selective evidence base may not fully represent the biological importance of DHA and ARA during early and ...


International Ocean Discovery Program Expedition 369 Preliminary Report: Australia Cretaceous Climate And Tectonics: Tectonic, Paleoclimate, And Paleoceanographic History Of High-Latitude Southern Margins Of Australia During The Cretaceous, Brian T. Huber, Richard W. Hobbs, Kara A. Bogus, Sietske Batenburg, H-J Brumsack, Rodrigo Do Monte Guerra, Kirsty Edgar, Trine Edvardsen, Dennis Harry, Takashi Hasegawa, Shannon Haynes, Tao Jiang, Matthew M. Jones, Junichiro Kuroda, Eun-Young Lee, Y-X Li, Kenneth Macleod, Alessandro Maritati, Mathieu Martinez, Lauren O'Connor, Maria Petrizzo, Tracy Quan, Carl Richter, Laurent Riquier, Gabriel Tagliaro, Maria Tejada, Carmine Wainman, David K. Watkins, Lloyd T. White, Erik Wolfgring, Zhaokai Xu Jan 2018

International Ocean Discovery Program Expedition 369 Preliminary Report: Australia Cretaceous Climate And Tectonics: Tectonic, Paleoclimate, And Paleoceanographic History Of High-Latitude Southern Margins Of Australia During The Cretaceous, Brian T. Huber, Richard W. Hobbs, Kara A. Bogus, Sietske Batenburg, H-J Brumsack, Rodrigo Do Monte Guerra, Kirsty Edgar, Trine Edvardsen, Dennis Harry, Takashi Hasegawa, Shannon Haynes, Tao Jiang, Matthew M. Jones, Junichiro Kuroda, Eun-Young Lee, Y-X Li, Kenneth Macleod, Alessandro Maritati, Mathieu Martinez, Lauren O'Connor, Maria Petrizzo, Tracy Quan, Carl Richter, Laurent Riquier, Gabriel Tagliaro, Maria Tejada, Carmine Wainman, David K. Watkins, Lloyd T. White, Erik Wolfgring, Zhaokai Xu

Faculty of Science, Medicine and Health - Papers: part A

The tectonic and paleoceanographic setting of the Great Australian Bight (GAB) and the Mentelle Basin (MB; adjacent to Naturaliste Plateau) offered an outstanding opportunity to investigate Cretaceous and Cenozoic climate change and ocean dynamics during the last phase of breakup among remnant Gondwana continents. Sediment recovered from sites in both regions during International Ocean Discovery Program Expedition 369 will provide a new perspective on Earth's temperature variation at sub-polar latitudes (60°-62°S) across the extremes of the mid-Cretaceous hot greenhouse climate and the cooling that followed. The primary goals of the expedition were to: * Investigate the timing and ...


Association Between Maternal Sense Of Competence And Self-Efficacy In Primiparous Women During Postpartum Period, Marzieh Bagherinia, Shahla Meedya, Mojgan Mirghafourvand Jan 2018

Association Between Maternal Sense Of Competence And Self-Efficacy In Primiparous Women During Postpartum Period, Marzieh Bagherinia, Shahla Meedya, Mojgan Mirghafourvand

Faculty of Science, Medicine and Health - Papers: part A

Background: When women's' lives enter a new phase after childbirth, they need to adapt to it in order to accept their motherhood role. Maternal competency depends on the mother's perception of her maternal role and the ability to attain and fulfill it. The aim of this study was to examine the association between maternal sense of competence and self-efficacy in the postpartum period.

Methods: In this cross-sectional study, 305 Iranian women were selected randomly via a two-stage cluster sampling method at the end of the 4th postpartum month. Data were collected from August 2016 to January 2017 and ...


High-Sensitivity Troponin T And C-Reactive Protein Have Different Prognostic Values In Hemo- And Peritoneal Dialysis Populations: A Cohort Study, Titi Chen, Hicham Ibrahim Cheikh Hassan, Pierre Qian, Monica Vu, Angela Makris Jan 2018

High-Sensitivity Troponin T And C-Reactive Protein Have Different Prognostic Values In Hemo- And Peritoneal Dialysis Populations: A Cohort Study, Titi Chen, Hicham Ibrahim Cheikh Hassan, Pierre Qian, Monica Vu, Angela Makris

Faculty of Science, Medicine and Health - Papers: part A

Background--Dialysis patients have an exceedingly high mortality rate. Biomarkers may be useful tools in risk stratification of this population. We evaluated the prognostic value of high-sensitivity cardiac troponin T (hs-cTnT) and CRP (C-reactive protein) in predicting adverse outcomes in stable hemodialysis and peritoneal dialysis (PD) patients. Variability in hs-cTnT was also examined. Methods and Results--A retrospective cohort study included 574 dialysis patients (hemodialysis 347, PD 227). Outcomes examined included mortality and major adverse cardiovascular events, with median follow-up of 3.5 years. hs-cTnT was an independent predictor of both outcomes in hemodialysis and PD patients. Increased risk only became significant ...


Recognition And Management Of Avr Stemi: A Retrospective Cohort Study, Ruan Vlok, Hannah Kempton, Thomas M. Melhuish, Joshua Wall, Astin Lee, Leigh D. White Jan 2018

Recognition And Management Of Avr Stemi: A Retrospective Cohort Study, Ruan Vlok, Hannah Kempton, Thomas M. Melhuish, Joshua Wall, Astin Lee, Leigh D. White

Faculty of Science, Medicine and Health - Papers: part A

Identification of ST elevation on the electrocardiogram (ECG) is the cornerstone of diagnosis of ST-elevation myocardial infarction (STEMI). While lesion localisation can usually be achieved by regional ST-elevation patterns on ECG, clinicians often neglect changes in the ST segment of lead aVR, possibly contributing to delayed recognition and poorer outcomes for these patients. This study compared the 'door-to-balloon time' and peak troponins - as a surrogate marker of infarct size - for patients presenting with STEMI with ST-segment elevation in aVR compared with those patients without elevation in aVR. A total of 179 patients, including 17 patients presenting with ST-elevation in aVR ...


Ectothermic Telomeres: It's Time They Came In From The Cold, Mats M. Olsson, Erik Dr Erik Wapstra, Christopher R. Friesen Jan 2018

Ectothermic Telomeres: It's Time They Came In From The Cold, Mats M. Olsson, Erik Dr Erik Wapstra, Christopher R. Friesen

Faculty of Science, Medicine and Health - Papers: part A

We review the evolutionary ecology and genetics of telomeres in taxa that cannot elevate their body temperature to a preferred level through metabolism but do so by basking or seeking out a warm environment. This group of organisms contains all living things on earth, apart from birds and mammals. One reason for our interest in this synthetic group is the argument that high, stable body temperature increases the risk of malignant tumours if long, telomerase-restored telomeres make cells 'live forever'. If this holds true, ectotherms should have significantly lower cancer frequencies. We discuss to what degree there is support for ...


Low Intensity Blood Parasite Infections Do Not Reduce The Aerobic Performance Of Migratory Birds, Steffen Hahn, Silke Bauer, Dimitar Dimitrov, Tamara Emmenegger, Karina Ivanova, Pavel Zehtindjiev, William A. Buttemer Jan 2018

Low Intensity Blood Parasite Infections Do Not Reduce The Aerobic Performance Of Migratory Birds, Steffen Hahn, Silke Bauer, Dimitar Dimitrov, Tamara Emmenegger, Karina Ivanova, Pavel Zehtindjiev, William A. Buttemer

Faculty of Science, Medicine and Health - Papers: part A

Blood parasites (Haemosporidia) are thought to impair the flight performance of infected animals, and therefore, infected birds are expected to differ from their non-infected counterparts in migratory capacity. Since haemosporidians invade host erythrocytes, it is commonly assumed that infected individuals will have compromised aerobic capacity, but this has not been examined in free-living birds. We tested if haemosporidian infections affect aerobic performance by examining metabolic rates and exercise endurance in migratory great reed warblers (Acrocephalus arundinaceus) experimentally treated with Plasmodium relictum pGRW04 and in naturally infected wild birds over consecutive life-history stages. We found no effect of acute or chronic ...


Dissolved Organic Matter Signatures Vary Between Naturally Acidic, Circumneutral And Groundwater-Fed Freshwaters In Australia, Aleicia Holland, Jenny Stauber, Chris M. Wood, Melanie Trenfield, Dianne F. Jolley Jan 2018

Dissolved Organic Matter Signatures Vary Between Naturally Acidic, Circumneutral And Groundwater-Fed Freshwaters In Australia, Aleicia Holland, Jenny Stauber, Chris M. Wood, Melanie Trenfield, Dianne F. Jolley

Faculty of Science, Medicine and Health - Papers: part A

Dissolved organic matter (DOM) plays important roles in both abiotic and biotic processes within aquatic ecosystems, and these in turn depend on the quality of the DOM. We collected and characterized chromophoric DOM (CDOM) from different Australian freshwater types (circumneutral, naturally acidic and groundwater-fed waterways), climatic regions and seasons. CDOM quality was characterized using absorbance and fluorescence spectroscopy. Excitation emission scans followed by parallel factor (PARAFAC) analysis showed that CDOM was characterized by three main components: protein-like, fulvic-like and humic-like components commonly associated with various waters globally in the Openfluor database. Principal component analysis showed that CDOM quality varied between ...


The Ginninderra Ch4 And Co2 Release Experiment: An Evaluation Of Gas Detection And Quantification Techniques, Andrew Feitz, Ivan Schroder, Frances A. Phillips, Trevor Coates, Karita Neghandhi, Stuart Day, Ashok Luhar, Sangeeta Bhatia, Grant Edwards, Stefan Hrabar, Emili Hernandez, Brett Wood, Travis A. Naylor, Martin J. Kennedy, Murray Hamilton, Mike Hatch, John Malos, Mark Kochanek, Peter E. Reid, Joel Wilson, Nicholas M. Deutscher, Steve Zegelin, Robert Vincent, Stephen White, Cindy Ong, Suman George, Peter Maas, Sean Towner, Nicholas Wokker, David W. T Griffith Jan 2018

The Ginninderra Ch4 And Co2 Release Experiment: An Evaluation Of Gas Detection And Quantification Techniques, Andrew Feitz, Ivan Schroder, Frances A. Phillips, Trevor Coates, Karita Neghandhi, Stuart Day, Ashok Luhar, Sangeeta Bhatia, Grant Edwards, Stefan Hrabar, Emili Hernandez, Brett Wood, Travis A. Naylor, Martin J. Kennedy, Murray Hamilton, Mike Hatch, John Malos, Mark Kochanek, Peter E. Reid, Joel Wilson, Nicholas M. Deutscher, Steve Zegelin, Robert Vincent, Stephen White, Cindy Ong, Suman George, Peter Maas, Sean Towner, Nicholas Wokker, David W. T Griffith

Faculty of Science, Medicine and Health - Papers: part A

A methane (CH4) and carbon dioxide (CO2) release experiment was held from April to June 2015 at the Ginninderra Controlled Release Facility in Canberra, Australia. The experiment provided an opportunity to compare different emission quantification techniques against a simulated CH4 and CO2 point source release, where the actual release rates were unknown to the participants. Eight quantification techniques were assessed: three tracer ratio techniques (two mobile); backwards Lagrangian stochastic modelling; forwards Lagrangian stochastic modelling; Lagrangian stochastic (LS) footprint modelling; atmospheric tomography using point and using integrated line sensors. The majority of CH4 estimates were within ...


The Use Of Time-Averaged Concentrations Of Metals To Predict The Toxicity Of Pulsed Complex Effluent Exposures To A Freshwater Alga, Brad M. Angel, Kathryn Goodwyn, Dianne F. Jolley, Stuart L. Simpson Jan 2018

The Use Of Time-Averaged Concentrations Of Metals To Predict The Toxicity Of Pulsed Complex Effluent Exposures To A Freshwater Alga, Brad M. Angel, Kathryn Goodwyn, Dianne F. Jolley, Stuart L. Simpson

Faculty of Science, Medicine and Health - Papers: part A

Intermittent, fluctuating and pulsed contaminant discharges may result in organisms receiving highly variable toxicant exposures. This study investigated the toxicity of continuous and pulsed exposures of a complex, neutralised drainage water (NDW) and dissolved copper-spiked dilute NDW to the green alga, Pseudokirchneriella subcapitata. The effects of single pulses of between 1 and 48 h duration and continuous exposures (72 h) on algal growth rate inhibition were compared on a time-averaged concentration (TAC) basis. Algal growth rates generally recovered to control levels within 24e48 h of the pulse removal. Continuous exposures to NDW resulted in similar or marginally higher toxicity to ...


Long Open-Path Measurements Of Greenhouse Gases In Air Using Near-Infrared Fourier Transform Spectroscopy, David W. T Griffith, Denis Pohler, Stefan Schmitt, S. S. Hammer, S Vardag, Ulrich Platt Jan 2018

Long Open-Path Measurements Of Greenhouse Gases In Air Using Near-Infrared Fourier Transform Spectroscopy, David W. T Griffith, Denis Pohler, Stefan Schmitt, S. S. Hammer, S Vardag, Ulrich Platt

Faculty of Science, Medicine and Health - Papers: part A

In complex and urban environments, atmospheric trace gas composition is highly variable in time and space. Point measurement techniques for trace gases with in situ instruments are well established and accurate, but do not provide spatial averaging to compare against developing high-resolution atmospheric models of composition and meteorology with resolutions of the order of a kilometre. Open-path measurement techniques provide path average concentrations and spatial averaging which, if sufficiently accurate, may be better suited to assessment and interpretation with such models. Open-path Fourier transform spectroscopy (FTS) in the mid-infrared region, and differential optical absorption spectroscopy (DOAS) in the UV and ...


Vegetation History And Paleoclimate At Lake Dojran (Fyrom/Greece) During The Late Glacial And Holocene, Alessia Masi, Alexander Francke, Caterina Pepe, Matthias Thienemann, Bernd Wagner, Laura Sadori Jan 2018

Vegetation History And Paleoclimate At Lake Dojran (Fyrom/Greece) During The Late Glacial And Holocene, Alessia Masi, Alexander Francke, Caterina Pepe, Matthias Thienemann, Bernd Wagner, Laura Sadori

Faculty of Science, Medicine and Health - Papers: part A

A new high-resolution pollen and NPP (non-pollen palynomorph) analysis has been performed on the sediments of Lake Dojran, a transboundary lake located at the border between Greece and the former Yugoslav Republic of Macedonia (FYROM). The sequence covers the last 12 500 years and provides information on the vegetational dynamics of the Late Glacial and Holocene for the southern Balkans. Robust age model, sedimentological diatom, and biomarker analyses published previously have been the base for a multi-perspective interpretation of the new palynological data. Pollen analysis revealed that the Late Glacial is characterized by steppic taxa with prevailing Amaranthaceae, Artemisia and ...