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Full-Text Articles in Social and Behavioral Sciences

Bots Without Borders: How Anonymous Accounts Hijack Political Debate, Katina Michael Jan 2017

Bots Without Borders: How Anonymous Accounts Hijack Political Debate, Katina Michael

Faculty of Engineering and Information Sciences - Papers: Part A

No abstract provided.


Linearization Of Ebt3 Film Dose Response And Virtual Film Dosimetry For Sbrt Quality Assurance, Meng Cai, Ben Archibald-Heeren, Yang Wang, Peter E. Metcalfe Jan 2017

Linearization Of Ebt3 Film Dose Response And Virtual Film Dosimetry For Sbrt Quality Assurance, Meng Cai, Ben Archibald-Heeren, Yang Wang, Peter E. Metcalfe

Faculty of Engineering and Information Sciences - Papers: Part A

EBT3 film offers high spatial resolution and low energy dependence, making it a suitable choice for quality assurance where high dose gradients are present, such as the case for SBRT. This work presents a simple method to adjust scanner settings so that dose response becomes linear. This linearity eliminates the need to obtain a calibration curve and associated uncertainties in curve fitting. Relative dosimetry can be performed after dose normalization to a reference point. Linearity is also a more robust condition than calibration curve with respect to scanner warm-up conditions, resulting in reduced uncertainty in dose measurement. An in-house developed ...


Monte Carlo Characterisation Of The Dose Magnifying Glass For Proton Therapy Quality Assurance, Aaron Merchant, Susanna Guatelli, Marco Petasecca, Michael A. Jackson, Anatoly B. Rosenfeld Jan 2017

Monte Carlo Characterisation Of The Dose Magnifying Glass For Proton Therapy Quality Assurance, Aaron Merchant, Susanna Guatelli, Marco Petasecca, Michael A. Jackson, Anatoly B. Rosenfeld

Faculty of Engineering and Information Sciences - Papers: Part A

A Geant4 Monte Carlo simulation study was carried out to characterise a novel silicon strip detector, the Dose Magnifying Glass (DMG), for use in proton therapy Quality Assurance. We investigated the possibility to use DMG to determine the energy of the incident proton beam. The advantages of DMG are quick response, easy operation and high spatial resolution. In this work we theoretically proved that DMG can be used for QA in the determination of the energy of the incident proton beam, for ocular and prostate cancer therapy. The study was performed by means of Monte Carlo simulations Experimental measurements are ...


Selection Bias In The Reported Performances Of Ad Classification Pipelines, Alex F. Mendelson, Maria A. Zuluaga, Marco Lorenzi, Brian F. Hutton, Sebastien Ourselin Jan 2017

Selection Bias In The Reported Performances Of Ad Classification Pipelines, Alex F. Mendelson, Maria A. Zuluaga, Marco Lorenzi, Brian F. Hutton, Sebastien Ourselin

Faculty of Engineering and Information Sciences - Papers: Part A

The last decade has seen a great proliferation of supervised learning pipelines for individual diagnosis and prognosis in Alzheimer's disease. As more pipelines are developed and evaluated in the search for greater performance, only those results that are relatively impressive will be selected for publication. We present an empirical study to evaluate the potential for optimistic bias in classification performance results as a result of this selection. This is achieved using a novel, resampling-based experiment design that effectively simulates the optimisation of pipeline specifications by individuals or collectives of researchers using cross validation with limited data. Our findings indicate ...


Superior Mechanical Properties Of Microalloyed Steels Processed Via A New Technology Based On Austenite Conditioning Followed By Warm Deformation, Andrii Kostryzhev, Olexandra Marenych Jan 2017

Superior Mechanical Properties Of Microalloyed Steels Processed Via A New Technology Based On Austenite Conditioning Followed By Warm Deformation, Andrii Kostryzhev, Olexandra Marenych

Faculty of Engineering and Information Sciences - Papers: Part A

In this paper we introduce the AC2WD-technology, which stands for Austenite Conditioning – Accelerated Cooling – Warm Deformation. This technology was tested in laboratory conditions using a Gleeble thermomechanical simulator. Two microalloyed steels processed via this technology have shown a superior combination of mechanical properties, compared to those obtained via the conventional thermomechanical processing routes.


Quantum Beam Science-Applications To Probe Or Influence Matter And Materials, Klaus-Dieter Liss Jan 2017

Quantum Beam Science-Applications To Probe Or Influence Matter And Materials, Klaus-Dieter Liss

Faculty of Engineering and Information Sciences - Papers: Part A

The concept of quantum beams unifies a multitude of different kinds of radiation that can be considered as both waves and particles, according to the quantum mechanical model. Examples include light, in the form of X-rays and synchrotron radiation, as well as neutrons, electrons, positrons, muons, protons, ions, and photons. While the past century saw the discovery of these types of radiation and particles along with the investigations of their physical properties and their fundamental interaction with matter, the current century focuses extensively on their applications to characterize and understand materials in their broadest context, under all imaginable conditions. X-rays ...


Equivalence And Stable Isomorphism Of Groupoids, And Diagonal-Preserving Stable Isomorphisms Of Graph C*-Algebras And Leavitt Path Algebras, Toke Meier Carlsen, Efren Ruiz, Aidan Sims Jan 2017

Equivalence And Stable Isomorphism Of Groupoids, And Diagonal-Preserving Stable Isomorphisms Of Graph C*-Algebras And Leavitt Path Algebras, Toke Meier Carlsen, Efren Ruiz, Aidan Sims

Faculty of Engineering and Information Sciences - Papers: Part A

We prove that ample groupoids with σ-compact unit spaces are equivalent if and only if they are stably isomorphic in an appropriate sense, and relate this to Matui's notion of Kakutani equivalence. We use this result to show that diagonal-preserving stable isomorphisms of graph C*-algebras or Leavitt path algebras give rise to isomorphisms of the groupoids of the associated stabilised graphs. We deduce that the Leavitt path algebras LZ(E2) and LZ(E2-) are not stably *-isomorphic.


A Grounded Theory Study Of Thai Family Caregiving Process For Relatives With First Episode Psychosis, Wilai Napa, Patraporn Tungpunkom, Hunsa Sethabouppha, Areewan Klunklin, Ritin S. Fernandez Jan 2017

A Grounded Theory Study Of Thai Family Caregiving Process For Relatives With First Episode Psychosis, Wilai Napa, Patraporn Tungpunkom, Hunsa Sethabouppha, Areewan Klunklin, Ritin S. Fernandez

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

This grounded theory study explored the family caregiving process for relatives with first-episode psychosis related to schizophrenia spectrum disorders. The study was conducted during May 2013-March 2014 in lower northeastern region of Thailand using semi-structured interviews and observations, and involved 31 participants from 18 Thai families. The data were analyzed by using Strauss and Corbin's constant comparative method until theoretical saturation was achieved.

The core category emerging from the data was Balancing family life, which consisted of three phases: 1) Communicating to gain support and understanding, 2) Capturing solution, and 3) Engaging in the family caregiving role. To keep ...


Medication Adherence In Randomized Controlled Trials Evaluating Cardiovascular Or Mortality Outcomes In Dialysis Patients: A Systematic Review, Karumathil Murali, Judy Mullan, Jenny H. Chen, Steven J. Roodenrys, Maureen A. Lonergan Jan 2017

Medication Adherence In Randomized Controlled Trials Evaluating Cardiovascular Or Mortality Outcomes In Dialysis Patients: A Systematic Review, Karumathil Murali, Judy Mullan, Jenny H. Chen, Steven J. Roodenrys, Maureen A. Lonergan

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

Background: Medication non-adherence is common among renal dialysis patients. High degrees of non-adherence in randomized controlled trials (RCTs) can lead to failure to detect a true treatment effect. Cardio-protective pharmacological interventions have shown no consistent benefit in RCTs involving dialysis patients. Whether non-adherence contributes to this lack of efficacy is unknown. We aimed to investigate how medication adherence and drug discontinuation were assessed, reported and addressed in RCTs, evaluating cardiovascular or mortality outcomes in dialysis patients.

Methods: Electronic database searches were performed in MEDLINE, EMBASE & Cochrane CENTRAL for RCTs published between 2005-2015, evaluating self-administered medications, in adult dialysis patients, which reported clinical cardiovascular or mortality endpoints, as primary or secondary outcomes. Study characteristics, outcomes, methods of measuring and reporting adherence, and data on study drug discontinuation were analyzed.

Results: Of the 642 RCTs in dialysis patients, 22 trials (12 placebo controlled), which included 19,322 patients, were eligible. The trialed pharmacological interventions included anti-hypertensives, phosphate binders, lipid-lowering therapy, cardio-vascular medications, homocysteine lowering therapy, fish oil and calcimimetics. Medication adherence was reported in five trials with a mean of 81% (range: 65-92%) in the intervention arm and 84.5% (range: 82-87%) in the control arm. All the trials that reported adherence yielded negative study outcomes for the intervention. Study-drug discontinuation was reported in 21 trials (mean 33.2%; 95% CI, 22.0 to 44.5, in intervention and 28.8%; 95% CI, 16 ...


The Sodium Content Of Processed Foods In South Africa During The Introduction Of Mandatory Sodium Limits, Sanne Peters, Elizabeth K. Dunford, Lisa J. Ware, Teresa Harris, Adele Walker, Mariaan Wicks, Tertia Van Zyl, Bianca Swanepoel, Karen E. Charlton, Mark Woodward, Jacqui Webster, Bruce Neal Jan 2017

The Sodium Content Of Processed Foods In South Africa During The Introduction Of Mandatory Sodium Limits, Sanne Peters, Elizabeth K. Dunford, Lisa J. Ware, Teresa Harris, Adele Walker, Mariaan Wicks, Tertia Van Zyl, Bianca Swanepoel, Karen E. Charlton, Mark Woodward, Jacqui Webster, Bruce Neal

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

Background: In June 2016, the Republic of South Africa introduced legislation for mandatory limits for the upper sodium content permitted in a wide range of processed foods. We assessed the sodium levels of packaged foods in South Africa during the one-year period leading up to the mandatory implementation date of the legislation.

Methods: Data on the nutritional composition of packaged foods was obtained from nutrition information panels on food labels through both in-store surveys and crowdsourcing by users of the HealthyFood Switch mobile phone app between June 2015 and August 2016. Summary sodium levels were calculated for 15 food categories ...


How Do We Fit Underground Coal Mining Work Boots?, Jessica Dobson, Diane L. Riddiford-Harland, Alison F. Bell, Julie R. Steele Jan 2017

How Do We Fit Underground Coal Mining Work Boots?, Jessica Dobson, Diane L. Riddiford-Harland, Alison F. Bell, Julie R. Steele

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

Well-fitted footwear provides an appropriate level of protection, support and comfort during walking (de Castro et al., 2010), and reduces the potential for foot problems and foot pain (Manna et al., 2001). To fit properly, the internal footwear shape should match the shape of a wearer's foot. In underground coal miners, however, there are mismatches between the shape of their feet and the internal work boot dimensions. The impact these boot-foot mismatches have on work footwear satisfaction remains unclear (Dobson et al., 2017). Uncomfortable footwear does not have poor fit ratings at every point on a shoe. This indicates ...


Critical Reflection: The Struggle Of A Practice Developer, Rebekkah Middleton Jan 2017

Critical Reflection: The Struggle Of A Practice Developer, Rebekkah Middleton

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

Context: Critical reflection is espoused as aligning with person-centred approaches and with being an effective person-centred facilitator. Knowing 'self' represents a key prerequisite of being an effective person-centred facilitator. This attribute is essential for personal growth and for helping create the conditions that enable others to grow.

Aims: This article seeks to explore why critical reflection is difficult for some, sharing personal stories of a practice developer's experiences of wrestling with reflective models and learning to critically reflect in a meaningful way.

Questions for practice:

  • How can practice developers earnestly engage in reflection?
  • Is it necessary to be bound ...


Understanding The Context Of Learning In An Online Social Network For Health Professionals' Informal Learning, Xin Li, Kathleen Gray, Karin Verspoor, Stephen Barnett Jan 2017

Understanding The Context Of Learning In An Online Social Network For Health Professionals' Informal Learning, Xin Li, Kathleen Gray, Karin Verspoor, Stephen Barnett

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

Online social networks (OSN) enable health professionals to learn informally, for example by sharing medical knowledge, or discussing practice management challenges and clinical issues. Understanding the learning context in OSN is necessary to get a complete picture of the learning process, in order to better support this type of learning. This study proposes critical contextual factors for understanding the learning context in OSN for health professionals, and demonstrates how these contextual factors can be used to analyse the learning context in a designated online learning environment for health professionals.


Graduate Nurse Practice Readiness: A Conceptual Understanding Of An Age Old Debate, May El Haddad, Lorna Moxham, Marc Broadbent Jan 2017

Graduate Nurse Practice Readiness: A Conceptual Understanding Of An Age Old Debate, May El Haddad, Lorna Moxham, Marc Broadbent

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

The growing demands of an aging population, a looming nursing shortage, widespread fiscal constraints and the growing complexity of a dynamic healthcare landscape means that graduate registered nurses (GRNs) are increasingly expected to be practice ready. This term, also known as fitness to practice, has long been used to describe a concept that is actually unformulated. Indeed, what does being practice ready actually mean and who are the appropriate stakeholders to define it? The prevalence of the ongoing debate about practice readiness, which has now been around for decades, indicates the issue is still at the fore of nursing discourse ...


Complex Relationships Between Competing Guilds Along Large-Scale Environmental Gradients, Remi Vergnon, Mark K. J Ooi, Robert P. Freckleton Jan 2017

Complex Relationships Between Competing Guilds Along Large-Scale Environmental Gradients, Remi Vergnon, Mark K. J Ooi, Robert P. Freckleton

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

Despite much research over the past 30 years, there is still little general understanding of how the outcomes of interactions vary along environmental gradients, particularly at large geographic scales. A simple expectation is that decreasing environmental quality should reduce densities of competitors and hence the effects of competition should weaken in poorer environments. A counterintuitive consequence is that associations between densities of competitors might change from negative to positive as environments decrease in quality. Here we test these predictions in a set of vascular plant communities where perennial species share space and resources with less competitive annuals. We surveyed nine ...


Dynamic Topography And Eustasy Controlled The Paleogeographic Evolution Of Northern Africa Since The Mid-Cretaceous, N Barnett-Moore, Rakib Hassan, R. Dietmar Muller, Simon E. Williams, Nicolas Flament Jan 2017

Dynamic Topography And Eustasy Controlled The Paleogeographic Evolution Of Northern Africa Since The Mid-Cretaceous, N Barnett-Moore, Rakib Hassan, R. Dietmar Muller, Simon E. Williams, Nicolas Flament

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

Northern Africa underwent widespread inundation during the Late Cretaceous. Changes in eustasy do not explain the absence of this inundation across the remainder of Africa, and the timing and location of documented tectonic deformation do not explain the large-scale paleogeographic evolution. We investigate the combined effects of vertical surface displacements predicted by a series of mantle flow models and eustasy on northern African paleoenvironmental change. We compare changes in base level computed as the difference between eustasy and long-wavelength dynamic topography arising from sources of buoyancy deeper than 350 km to the evolution of paleoshorelines derived from two interpolated global ...


Scalemic Caged Xanthones Isolated From The Stem Bark Extract Of Garcinia Propinqua, Teerayut Sriyatep, Raymond J. Andersen, Brian O. Patrick, Stephen G. Pyne, Chatchai Muanprasat, Sawinee Seemakhan, Suparerk Borwornpinyo, Surat Laphookhieo Jan 2017

Scalemic Caged Xanthones Isolated From The Stem Bark Extract Of Garcinia Propinqua, Teerayut Sriyatep, Raymond J. Andersen, Brian O. Patrick, Stephen G. Pyne, Chatchai Muanprasat, Sawinee Seemakhan, Suparerk Borwornpinyo, Surat Laphookhieo

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

Seven new caged xanthones, doitunggarcinones E−K (1−7), all as scalemic mixtures and 10 known compounds (8−17), were isolated from the stem bark extract of Garcinia propinqua. The structures were elucidated on the basis of spectroscopic methods. The separation of the enantiomers of 1−6 was achieved by semipreparative chiral HPLC. The absolute configuration of compound (+)-1 was determined by single-crystal X-ray crystallographic analysis using Cu Kα radiation. The absolute configurations of the other related compounds were determined from comparisons of their ECD spectra with that of compound (+)-1. Compounds (−)-6 and 7 showed cytotoxicity against a colon ...


The Age Of Homo Naledi And Associated Sediments In The Rising Star Cave, South Africa, Paul H.G.M Dirks, Eric Roberts, Hannah Hilbert-Wolf, Jan Kramers, John Hawks, Anthony Dosseto, Mathieu Duval, Marina Elliott, Mary Evans, Rainer Grün Jan 2017

The Age Of Homo Naledi And Associated Sediments In The Rising Star Cave, South Africa, Paul H.G.M Dirks, Eric Roberts, Hannah Hilbert-Wolf, Jan Kramers, John Hawks, Anthony Dosseto, Mathieu Duval, Marina Elliott, Mary Evans, Rainer Grün

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

New ages for flowstone, sediments and fossil bones from the Dinaledi Chamber are presented. We combined optically stimulated luminescence dating of sediments with U-Th and palaeomagnetic analyses of flowstones to establish that all sediments containing Homo naledi fossils can be allocated to a single stratigraphic entity (sub-unit 3b), interpreted to be deposited between 236 ka and 414 ka. This result has been confirmed independently by dating three H. naledi teeth with combined U-series and electron spin resonance (US-ESR) dating. Two dating scenarios for the fossils were tested by varying the assumed levels of 222Rn loss in the encasing sediments: a ...


Do Daily And Seasonal Trends In Leaf Solar Induced Fluorescence Reflect Changes In Photosynthesis, Growth Or Light Exposure?, Rhys Wyber, Zbynek Malenovky, Michael B. Ashcroft, Barry Osmond, Sharon A. Robinson Jan 2017

Do Daily And Seasonal Trends In Leaf Solar Induced Fluorescence Reflect Changes In Photosynthesis, Growth Or Light Exposure?, Rhys Wyber, Zbynek Malenovky, Michael B. Ashcroft, Barry Osmond, Sharon A. Robinson

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

Solar induced chlorophyll fluorescence (SIF) emissions of photosynthetically active plants retrieved from space-borne observations have been used to improve models of global primary productivity. However, the relationship between SIF and photosynthesis in diurnal and seasonal cycles is still not fully understood, especially at large spatial scales, where direct measurements of photosynthesis are unfeasible. Motivated by up-scaling potential, this study examined the diurnal and seasonal relationship between SIF and photosynthetic parameters measured at the level of individual leaves. We monitored SIF in two plant species, avocado (Persea Americana) and orange jasmine (Murraya paniculatta), throughout 18 diurnal cycles during the Southern Hemisphere ...


Single-Grain Osl Chronologies For The Still Bay And Howieson's Poort Industries And The Transition Between Them: Further Analyses And Statistical Modelling, Zenobia Jacobs, Richard G. Roberts Jan 2017

Single-Grain Osl Chronologies For The Still Bay And Howieson's Poort Industries And The Transition Between Them: Further Analyses And Statistical Modelling, Zenobia Jacobs, Richard G. Roberts

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

The chronology of the Still Bay (SB) and Howieson's Poort (HP) lithic industries remains an issue of keen interest because of the central role of these two phases of technological and behavioural innovation within the Middle Stone Age of southern Africa. Several dating studies have been conducted on SB and HP sites, including a pair published by the present authors and our colleagues in 2008 and 2013. These reported the results of systematically applying single-grain optically stimulated luminescence (OSL) dating procedures to 10 sites in South Africa, Lesotho and Namibia to constrain the timing of the start and end ...


The Chronostratigraphy Of The Haua Fteah Cave (Cyrenaica, Northeast Libya) - Optical Dating Of Early Human Occupation During Marine Isotope Stages 4, 5 And 6, Zenobia Jacobs, Bo Li, Lucy Farr, Evan Hill, C Hunt, Sacha C. Jones, Ryan J. Rabett, Tim Reynolds, Richard G. Roberts, David Simpson, Graeme Barker Jan 2017

The Chronostratigraphy Of The Haua Fteah Cave (Cyrenaica, Northeast Libya) - Optical Dating Of Early Human Occupation During Marine Isotope Stages 4, 5 And 6, Zenobia Jacobs, Bo Li, Lucy Farr, Evan Hill, C Hunt, Sacha C. Jones, Ryan J. Rabett, Tim Reynolds, Richard G. Roberts, David Simpson, Graeme Barker

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

The paper presents the results of optical dating of potassium-rich feldspar grains obtained from the Haua Fteah cave in Cyrenaica, northeast Libya, focussing on the chronology of the Deep Sounding excavated by Charles McBurney in the 1950s and re-excavated recently. Samples were also collected from a 1.25 m-deep trench (Trench S) excavated during the present project below the basal level of the Deep Sounding. Optically stimulated luminescence (OSL) data sets for multi-grain, single aliquots of quartz for samples from the Middle Trench were previously published. Re-analyses of these OSL data confirm significant variation in the dose saturation levels of ...


Tropical Forcing Of Increased Southern Ocean Climate Variability Revealed By A 140-Year Subantarctic Temperature Reconstruction, Christian Turney, Christopher Fogwill, Jonathan G. Palmer, Erik Van Sebille, Zoë Thomas, Matt S. Mcglone, Sarah Richardson, J M. Wilmshurst, Pavla Fenwick, Violette Zunz, Eleanor Rainsley Jan 2017

Tropical Forcing Of Increased Southern Ocean Climate Variability Revealed By A 140-Year Subantarctic Temperature Reconstruction, Christian Turney, Christopher Fogwill, Jonathan G. Palmer, Erik Van Sebille, Zoë Thomas, Matt S. Mcglone, Sarah Richardson, J M. Wilmshurst, Pavla Fenwick, Violette Zunz, Eleanor Rainsley

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

Occupying about 14% of the world's surface, the Southern Ocean plays a fundamental role in ocean and atmosphere circulation, carbon cycling and Antarctic ice-sheet dynamics. Unfortunately, high interannual variability and a dearth of instrumental observations before the 1950s limits our understanding of how marine-atmosphere-ice domains interact on multi-decadal timescales and the impact of anthropogenic forcing. Here we integrate climate-sensitive tree growth with ocean and atmospheric observations on southwest Pacific subantarctic islands that lie at the boundary of polar and subtropical climates (52-54°S). Our annually resolved temperature reconstruction captures regional change since the 1870s and demonstrates a significant increase ...


Extending The Record Of Lacustrine Phases Beyond The Last Interglacial For Lake Eyre In Central Australia Using Luminescence Dating, Xiao Fu, Tim J. Cohen, Lee J. Arnold Jan 2017

Extending The Record Of Lacustrine Phases Beyond The Last Interglacial For Lake Eyre In Central Australia Using Luminescence Dating, Xiao Fu, Tim J. Cohen, Lee J. Arnold

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

We show with multiple luminescence dating techniques that the sedimentary record for Lake Eyre, Australia's largest lake, extends beyond 200 thousand years (ka) to Marine Isotope Stage (MIS) 7. Transgressive clayey sand and finely laminated clays overlying the Miocene Etadunna Formation in Lake Eyre North document the deep-lake phases of central South Australia in the past. Until now, unresolved chronology has hampered our ability to interpret these sedimentary records, which are important for understanding the timing of the wettest phase of central Australia's late Quaternary climate. In this study, we apply quartz optically stimulated luminescence (OSL) dating, thermally-transferred ...


Ebola Virus Disease: An Update On Current Prevention And Management Strategies, Mohamad-Ali Trad, W Naughton, Alison Yeung, L Mazlin, M O'Sullivan, N Gilroy, D A. Fisher, R L. Stuart Jan 2017

Ebola Virus Disease: An Update On Current Prevention And Management Strategies, Mohamad-Ali Trad, W Naughton, Alison Yeung, L Mazlin, M O'Sullivan, N Gilroy, D A. Fisher, R L. Stuart

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

Ebola virus disease (EVD) is characterised by systemic viral replication, immuno-suppression, abnormal inflammatory responses, large volume fluid and electrolyte losses, and high mortality in under-resourced settings. There are various therapeutic strategies targeting EVD including vaccines utilizing different antigen delivery methods, antibody-based therapies and antiviral drugs. These therapies remain experimental, but received attention following their use particularly in cases treated outside West Africa during the 2014-15 outbreak, in which 20 (80%) out of 25 patients survived. Emerging data from current trials look promising and are undergoing further study, however optimised supportive care remains the key to reducing mortality from EVD.


Effect Of Work Boot Type On Work Footwear Habits, Lower Limb Pain And Perceptions Of Work Boot Fit And Comfort In Underground Coal Miners, Jessica Dobson, Diane L. Riddiford-Harland, Alison F. Bell, Julie R. Steele Jan 2017

Effect Of Work Boot Type On Work Footwear Habits, Lower Limb Pain And Perceptions Of Work Boot Fit And Comfort In Underground Coal Miners, Jessica Dobson, Diane L. Riddiford-Harland, Alison F. Bell, Julie R. Steele

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

Lower limb injuries are highly prevalent in underground coal mining. Wearing gumboots with inadequate ankle support was thought to contribute to these injuries. Despite the uptake of leather lace-up boots, which provide more ankle support, no recent research could be found investigating the effect of this alternative work boot in underground coal mining. Consequently, this study aimed to determine whether boot type (gumboot, leather lace-up boot) influenced work footwear habits, foot problems, lower limb pain, lower back pain, or perceptions of work boot fit and comfort in underground coal miners. Chi-squared tests were applied to 358 surveys completed by underground ...


Impact Of Southeast Asian Smoke On Aerosol Properties In Southwest China: First Comparison Of Model Simulations With Satellite And Ground Observations, Jun Zhu, Xiangao Xia, Jun Wang, Jinqiang Zhang, Christine Wiedinmyer, Jenny A. Fisher, Christoph A. Keller Jan 2017

Impact Of Southeast Asian Smoke On Aerosol Properties In Southwest China: First Comparison Of Model Simulations With Satellite And Ground Observations, Jun Zhu, Xiangao Xia, Jun Wang, Jinqiang Zhang, Christine Wiedinmyer, Jenny A. Fisher, Christoph A. Keller

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

Smoke aerosols have been observed in Southwest China as a result of long-range transport from surrounding areas in March and April. The processes driving this transport and the resultant impact on regional aerosol optical properties are studied here through a combined use of the Goddard Earth Observing System (GEOS)-Chem chemistry transport model in conjunction with satellite and the first-ever ground-based observations in the Southwest China. The potential biomass burning source regions as well as their respective contributions to aerosol loading in Southwest China are quantified. Compared to Sun photometer observations of aerosol optical depth (AOD) at 550nm at eight ...


Psychological Functioning Predicts Competence Development For Postgraduate Students Of Professional Psychology, Leanne Humphreys, Rocco Crino, Ian G. Wilson Jan 2017

Psychological Functioning Predicts Competence Development For Postgraduate Students Of Professional Psychology, Leanne Humphreys, Rocco Crino, Ian G. Wilson

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

This study sought to examine the psychological functioning of students enrolled in postgraduate programs of clinical and forensic psychology in an Australian university, and the degree to which psychological functioning predicted competence attainment while participating in an extended clinical placement. Results revealed that as a group students reported psychological functioning within normal ranges, with levels of conscientiousness found to positively predict, and levels of depression found to negatively predict the development of the necessary competencies. However, a subgroup of 27% of students reported experiencing clinical levels of psychological distress on at least one measure during the placement. At the completion ...


Preparation And Catalytic Study On A Novel Amino-Functionalized Silica-Coated Cobalt Oxide Nanocomposite For The Synthesis Of Some Indazoles, Mohammad Ghasemzadeh, Bahar Molaei, Mohammad Abdollahi-Basir, Farzad Zamani Jan 2017

Preparation And Catalytic Study On A Novel Amino-Functionalized Silica-Coated Cobalt Oxide Nanocomposite For The Synthesis Of Some Indazoles, Mohammad Ghasemzadeh, Bahar Molaei, Mohammad Abdollahi-Basir, Farzad Zamani

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

In this research an efficient synthesis of a novel nanocomposite including SiO2@(3-aminopropyl)triethoxysilane-coated cobalt oxide (Co3O4) nanocomposite has been reported by three step method. The structure and magnetic characterization of Co3O4@SiO2@NH2 have been done by using various spectroscopic analyses which include FT-IR, X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy and vibrating sample magnetometry. Amino-functionalized SiO2 coated Co3O4 nanocomposite exhibited superparamagnetic behavior and strong magnetization at room temperature. The average crystallite sizes of the Co3O4 are ...


Work Boot Design Affects The Way Workers Walk: A Systematic Review Of The Literature, Jessica Dobson, Diane L. Riddiford-Harland, Alison F. Bell, Julie R. Steele Jan 2017

Work Boot Design Affects The Way Workers Walk: A Systematic Review Of The Literature, Jessica Dobson, Diane L. Riddiford-Harland, Alison F. Bell, Julie R. Steele

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

Safety boots are compulsory in many occupations to protect the feet of workers from undesirable external stimuli, particularly in harsh work environments. The unique environmental conditions and varying tasks performed in different occupations necessitate a variety of boot designs to match each worker's occupational safety and functional requirements. Unfortunately, safety boots are often designed more for occupational safety at the expense of functionality and comfort. In fact, there is a paucity of published research investigating the influence that specific variations in work boot design have on fundamental tasks common to many occupations, such as walking. This literature review aimed ...


Potential For Identifying Plant-Based Toxins On San Hunter-Gatherer Arrowheads, Madelien Wooding, Justin Bradfield, Vinesh Maharaj, Dwayne Koot, Lyn Wadley, Linda C. Prinsloo, Marlize Lombard Jan 2017

Potential For Identifying Plant-Based Toxins On San Hunter-Gatherer Arrowheads, Madelien Wooding, Justin Bradfield, Vinesh Maharaj, Dwayne Koot, Lyn Wadley, Linda C. Prinsloo, Marlize Lombard

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

The antiquity of the use of hunting poisons has received much attention in recent years. In this paper we present the results of a pilot study designed to detect the presence of organic compounds, typically of less than 1200 Da, from poisonous plants that may have been used as hunting poisons in the past. We used ultra-performance liquid chromatography connected to a Synapt G2 high-resolution MS-QTOF mass spectrometer (UPLC-QTOF-MS) to provisionally identify plant-based toxins present in (1) extracts of fresh plant material, (2) a blind control recipe consisting of three plant ingredients and (3) a Hei||om arrow poison of ...