Digital Commons Network^™

Self-Healing Cementitious Composites (Shcc) With Ultrahigh Ductility For Pavement And Bridge Construction, Cihang Huang, Yen-Fang Su, Na (Luna) Lu

JTRP Technical Reports

Cracks and their formations in concrete structures have been a common and long-lived problem, mainly due to the intrinsic brittleness of the concrete. Concrete structures, such as rigid pavement and bridge decks, are prone to deformations and deteriorations caused by shrinkage, temperature fluctuation, and traffic load, which can affect their service life. Rehabilitation of concrete structures is expensive and challenging—not only from maintenance viewpoints but also because they cannot be used for services during maintenance. It is critical to significantly improve the ductility of concrete to overcome such issues and to enable better infrastructure quality. To this end, the self-healing …

Book Review: Dread Nation And Deathless Divide By Justina Ireland, Phillip Fitzsimmons

Faculty Articles & Research

The books, Dread Nation and Deathless Divide, by Justina Ireland, are the first two volumes of the Dread Nation series, an alternative history in which the American Civil War ended “when the dead rose up and started to walk on a battlefield in a small town in Pennsylvania called Gettysburg.”

Risk Factors For Covid-19 Infection, Disease Severity And Related Deaths In Africa: A Systematic Review, Hailay Abrha Gesesew, Digsu Negese Koye, Dagnachew Muluye Fetene, Mulu Woldegiorgis, Yohannes Kinfu, Ayele Bali Geleto, Yohannes Adama Melaku, Hassen Mohammed, Kefyalew Addis Alene, Mamaru Ayenew Awoke, Mulugeta Molla Birhanu, Amanuel Tesfay Gebremedhin, Yalemzewod Assefa Gelaw, Desalegn Markos Shifti, Muluken Dessalegn Muluneh, Teketo Kassaw Tegegne, Solomon Abrha, Atsede Fantahun Aregay, Mohammed Biset Ayalew, Abadi Kahsu Gebre, Kidane Tadesse Gebremariam, Tesfaye Gebremedhin, Lemlem Gebremichael, Cheru Tesema Leshargie, Getiye Dejenu Kibret, Maereg Wagnew Meazaw, Alemayehu Berhane Mekonnen, Dejen Y. Tekle, Azeb G. Tesema, Fisaha H. Tesfay, Wubshet Tesfaye, Befikadu L. Wubishet, Berihun A. Dachew, Akilew A. Adane

Research outputs 2014 to 2021

© BMJ Publishing Group Limited 2020. Objective The aim of this study was to provide a comprehensive evidence on risk factors for transmission, disease severity and COVID-19 related deaths in Africa. Design A systematic review has been conducted to synthesise existing evidence on risk factors affecting COVID-19 outcomes across Africa. Data sources Data were systematically searched from MEDLINE, Scopus, MedRxiv and BioRxiv. Eligibility criteria Studies for review were included if they were published in English and reported at least one risk factor and/or one health outcome. We included all relevant literature published up until 11 August 2020. Data extraction and …

Training In The Practice Of Noninvasive Brain Stimulation: Recommendations From An Ifcn Committee, Peter J. Fried, Emiliano Santarnecchi, Andrea Antal, David Bartres-Faz, Sven Bestmann, Linda L. Carpenter, Pablo Celnik, Dylan Edwards, Faranak Farzan, Shirley Fecteau, Mark S. George, Bin He, Yun-Hee Kim, Letizia Leocani, Sarah H. Lisanby, Colleen Loo, Bruce Luber, Michael A. Nitsche, Walter Paulus, Simone Rossi, Paolo M. Rossini, John Rothwell, Alexander T. Sack, Gregor Thut, Yoshikazu Ugawa, Ulf Ziemann, Mark Hallett, Alvaro Pascual-Leone

Research outputs 2014 to 2021

© 2020 As the field of noninvasive brain stimulation (NIBS) expands, there is a growing need for comprehensive guidelines on training practitioners in the safe and effective administration of NIBS techniques in their various research and clinical applications. This article provides recommendations on the structure and content of this training. Three different types of practitioners are considered (Technicians, Clinicians, and Scientists), to attempt to cover the range of education and responsibilities of practitioners in NIBS from the laboratory to the clinic. Basic or core competencies and more advanced knowledge and skills are discussed, and recommendations offered regarding didactic and practical …

Psychological Distress In Men With Prostate Cancer Undertaking Androgen Deprivation Therapy: Modifying Effects Of Exercise From A Year-Long Randomized Controlled Trial, Daniel A. Galvão, Robert U. Newton, Suzanne K. Chambers, Nigel Spry, David Joseph, Robert A. Gardiner, Ciaran M. Fairman, Dennis R. Taaffe

Research outputs 2014 to 2021

© 2021, The Author(s). Objectives: To assess the long-term effects of various exercise modes on psychological distress in men with prostate cancer on androgen deprivation therapy (ADT). Patients and methods: 135 prostate cancer patients aged 43–90 years on ADT were randomized to twice weekly supervised impact loading and resistance exercise (ImpRes), supervised aerobic and resistance exercise (AerRes), and usual care/delayed supervised aerobic exercise (DelAer) for 12 months, and completed measures of psychological distress using the Brief Symptom Inventory-18 (BSI-18). BSI-18 provides three subscales for anxiety, depression, and somatisation, as well as the global severity index (GSI) where higher scores indicate …

Judges’ Evaluation Reliability Changes Between Identifiable And Anonymous Performance Of Hip-Hop Dance Movements, Nahoko Sato, Luke S. Hopper

Research outputs 2014 to 2021

© 2021 Sato, Hopper. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Hip-hop competitions are performed across the world. In the recent inclusion in the 2018 Youth Olympic Games, the assessment of hip-hop performance is undertaken by a panel of judges. The purpose of this study was to determine the reliability of different visualisation tools utilised in the assessment of the hip-hop dance movements. Ten dancers performed basic rhythmic hip-hop movements which were captured …

Detecting Sex-Related Changes To The Metabolome Of A Critically Endangered Freshwater Crayfish During The Mating Season, Emily Lette, Quinton Burnham, Nathan Lawler, Pierre Horwitz, Mary C. Boyce, David I. Broadhurst, Rodney Duffy, Annette Koenders

Research outputs 2014 to 2021

Captive breeding is a vital tool in the conservation of highly endangered species, as it is for the Margaret River hairy marron, Cherax tenuimanus, from the south west of Australia. A close relative, Cherax cainii, has almost completely displaced C. tenuimanus in the wild and is a successful aquaculture species, whereas C. tenuimanus has performed poorly in captivity. We used untargeted liquid chromatography-mass spectrometry to obtain metabolomic profiles of female and male C. tenuimanus held in controlled aquarium conditions during their reproductive period. Using repeated haemolymph sampling we tracked the metabolomic profiles of animals just prior to and …

Effect Of Oral Rehydration Solution Versus Spring Water Intake During Exercise In The Heat On Muscle Cramp Susceptibility Of Young Men, Wing Yin Lau, Haruyasu Kato, Kazunori Nosaka

Research outputs 2014 to 2021

Background

Muscle cramp is a painful, involuntary muscle contraction, and that occurs during or following exercise is referred to as exercise-associated muscle cramp (EAMC). The causes of EAMC are likely to be multifactorial, but dehydration and electrolytes deficits are considered to be factors. This study tested the hypothesis that post-exercise muscle cramp susceptibility would be increased with spring water ingestion, but reduced with oral rehydration solution (ORS) ingestion during exercise.

Methods

Ten men performed downhill running (DHR) in the heat (35–36 °C) for 40–60 min to reduce 1.5–2% of their body mass in two conditions (spring water vs ORS) …

The Role Of Sleep Curtailment On Leptin Levels In Obesity And Diabetes Mellitus, Maryam Mosavat, Mitra Mirsanjari, Diana Arabiat, Aisling Smyth, Lisa Whitehead

Research outputs 2014 to 2021

Emerging evidence has identified sleep as a significant, but modifiable, risk factor for metabolic syndrome, diabetes, and obesity. Leptin, an adipocyte-derived peptide and a regulator of food intake and energy expenditure, has been shown to be associated with a short sleep duration in the pathophysiology of obesity and consequently type 2 diabetes. This review focuses on the current evidence indicating the effects of a short sleep duration on the regulation of leptin concentration in association with obesity and diabetes mellitus. In summary, the evidence suggests that sleep deprivation, by affecting leptin regulation, may lead to obesity and consequently development of …

Children And Young People's Experiences Of Living With Developmental Coordination Disorder/Dyspraxia: A Systematic Review And Meta-Ethnography Of Qualitative Research, Aíne O'Dea, Mandy Stanley, Susan Coote, Katie Robinson

Research outputs 2014 to 2021

Background: To date services for children with Developmental Coordination Disorder (DCD) have not been informed by the perspective of children with DCD. This study aimed to synthesise the findings of discrete qualitative studies reporting the lived experiences views and preferences of children and young with DCD using a meta-ethnographic approach to develop new conceptual understandings. Methods: A systematic search of ten databases; Academic Search Complete, AMED, CINAHL, ERIC, MEDLINE, PsychArticles, PsychInfo, EMBASE, SPORTDiscus, and Web of Science, was conducted between March and April 2019, and updated in early June 2020. Meta-ethnography, following the method described by Noblit and Hare was …

Recovery Agenda For Sustainable Development Post Covid-19 At The Country Level: Developing A Fuzzy Action Priority Surface, Meisam Ranjbari, Zahra S. Esfandabadi, Simone D. Scagnelli, Peer O. Siebers, Francesco Quatraro

Research outputs 2014 to 2021

As a response to the urgent call for recovery actions against the COVID-19 crisis, this research aims to identify action priority areas post COVID-19 toward achieving the targets of the sustainable development goals (SDGs) within the 2030 Agenda for Sustainable Development launched by the United Nations (UN). This paper applies a mixed-method approach to map the post-COVID-19 SDGs targets on a fuzzy action priority surface at the country level in Iran, as a developing country, by taking the following four main steps: (1) using a modified Delphi method to make a list of the SDGs targets influenced by COVID-19; (2) …

Hybrid Mamdani Fuzzy Rules And Convolutional Neural Networks For Analysis And Identification Of Animal Images, Hind R. Mohammed, Zahir M. Hussain

Research outputs 2014 to 2021

Accurate, fast, and automatic detection and classification of animal images is challenging, but it is much needed for many real-life applications. This paper presents a hybrid model of Mamdani Type-2 fuzzy rules and convolutional neural networks (CNNs) applied to identify and distinguish various animals using different datasets consisting of about 27,307 images. The proposed system utilizes fuzzy rules to detect the image and then apply the CNN model for the object’s predicate category. The CNN model was trained and tested based on more than 21,846 pictures of animals. The experiments’ results of the proposed method offered high speed and efficiency, …

A Survey Of Western Australian Teachers’ Use Of Texts In Supporting Beginning Readers, Simmone Pogorzelski, Susan Main, Susan Hill

Research outputs 2014 to 2021

Connected text reading is crucial to beginning reading development as this is where children apply the reading skills they are learning. The most recent version of the Australian Curriculum includes the requirement that teachers use both predictable and decodable texts in early reading instruction. As each text type is underpinned by a different approach to reading instruction, this creates a potential dilemma for teachers when implementing the curriculum. A preliminary study of the instructional practices used to teach reading in the first two years of schooling was therefore conducted to investigate how early years teachers make use of two different …

Digital Forensic Readiness Intelligence Crime Repository, Victor R. Kebande, Nickson M. Karie, Kim-Kwang R. Choo, Sadi Alawadi

Research outputs 2014 to 2021

It may not always be possible to conduct a digital (forensic) investigation post-event if there is no process in place to preserve potential digital evidence. This study posits the importance of digital forensic readiness, or forensic-by-design, and presents an approach that can be used to construct a Digital Forensic Readiness Intelligence Repository (DFRIR). Based on the concept of knowledge sharing, the authors leverage this premise to suggest an intelligence repository. Such a repository can be used to cross-reference potential digital evidence (PDE) sources that may help digital investigators during the process. This approach employs a technique of capturing PDE from …

Accountability Via Social And Financial Performance Of The Hospitality Sector: The Role Of Market Orientation, Soheil Kazemian, Hadrian G. Djajadikerta, Saiyydi Mat Roni, Terri Trireksani, Zuraidah Mohd-Sanusi

Research outputs 2014 to 2021

Purpose This study aims to examine the three dimensions of market orientation, namely, customer orientation, competitor orientation and inter-function coordination, which influence the accountability in the financial and social performance of tourism operators in large touristic cities. Design/methodology/approach In total, 95 usable questionnaires as the required data were collected from the top managers of four- and five-star hotels in Iran. Findings Partial least squares (PLS) results confirm that customer orientation and inter-function coordination influence both the financial and social performance of the hospitality sector yet reveal that competitor orientation has no significant relationship with social performance. Research limitations/implications These findings …

Are We Heading For Disaster? The Problem With Resilience In Disaster Management And Recovery, Zachary Horn

Research outputs 2014 to 2021

Resilience is often construed as armour that protects individuals from stressors and harm, or a trait that allows people to ‘bounce back’ despite adversities and stressors. Although not fundamentally incorrect, these notions do not capture the true purpose, scope or power of resilience, particularly in the disaster context.

The Effect Of Cryogenic Machining Of S2 Glass Fibre Composite On The Hole Form And Dimensional Tolerances, Ugur Koklu, Sezer Morkavuk, Carol Featherston, Malik Haddad, David Sanders, Muhammad Aamir, Danil Yu Pimenov, Khaled Giasin

Research outputs 2014 to 2021

S2 glass fibre reinforced epoxy composites are widely used in aeronautical applications owing to their excellent strength to weight ratio. Drilling glass fibres can be cumbersome due to their abrasive nature and poor thermal conductivity. Moreover, the use of conventional coolants is not desirable due to contamination and additional costs for cleaning the machine part. An alternative is to use environmentally friendly coolants such as liquid nitrogen (LN2) which have been previously employed in machining metals and composites. The current study investigates the effect of drilling S2 glass fibre composite in a bath of LN2. The study aims to evaluate …

Spon1 Is Associated With Amyloid-Β And Apoe Ε4-Related Cognitive Decline In Cognitively Normal Adults, Shane Fernandez, Samantha C. Burnham, Lidija Milicic, Greg Savage, Paul Maruff, Madeline Peretti, Hamid R. Sohrabi, Yen Ying Lim, Michael Weinborn, David Ames, Colin L. Masters, Ralph N. Martins, Stephanie Rainey-Smith, Christopher C. Rowe, Olivier Salvado, David Groth, Giuseppe Verdile, Victor L. Villemagne, Tenielle Porter, Simon M. Laws

Research outputs 2014 to 2021

Background: Genetic variation in Spondin-1, specifically rs11023139, has been associated with reduced rates of cognitive decline in individuals with Alzheimer's disease. Objective: The aim of this study was to assess whether the association was present in cognitively normal older adults. Methods: Longitudinal cognitive decline was investigated using linear mixed modelling in a cohort of 590 cognitively normal older adults enrolled in the Australian Imaging, Biomarkers and Lifestyle Study. Results: No independent effect of Spondin-1 rs11023139 on cognitive decline was observed. However, significant associations were observed for the interaction between Apolipoprotein E (APOE) ϵ4 and rs11023139 in individuals with high amyloid-β …

Examining The Average Scores Of Nursing Teamwork Subscales In An Acute Private Medical Ward, Martina Costello, Kylie Rusell, Tracey Coventry

Research outputs 2014 to 2021

Background: Healthcare is delivered by multidisciplinary healthcare teams who rely on communication and effective teamwork to ensure safe patient care. Teamwork builds on employee cohesion and reduces medical and nursing errors, resulting in greater patient satisfaction and improved healthcare. Effective teamwork not only improves efficiency and patient safety but leads to a healthier and happier workplace, reducing burnout among healthcare professionals. The purpose of this paper is to describe the findings of a pilot project on an acute medical ward in Western Australia. The aim was to understand the participants perceived level of teamwork to support future work practices and …

Influence Of Diagenetic Features On Petrophysical Properties Of Fine-Grained Rocks Of Oligocene Strata In The Lower Indus Basin, Pakistan, Abdul Majeed Shar, Aftab Ahmed Mahesar, Ghazanfer Raza Abbasi, Asad Ali Narejo, Asghar Ali Alias Daahar Hakro

Research outputs 2014 to 2021

Nari Formation is considered as one of the most important oil and gas exploration targets. These fine-grained tight sandstone reservoirs face enormous challenges due to their extremely low matrix porosity and permeability. Hence, in this regard, the study was carried out to collect the high-quality data on petrophysical properties along with mineralogy and microstructural characteristics and diagenesis. The experiments performed includes the petrographic study and scanning electron microscopy, and X-ray diffraction analyses. Besides, the measurement of petrophysical properties was carried out to assess the likely influence of the reservoir quality. The petrographic analysis shows predominantly fine- to medium-grained grey samples …

Twitter Content Analysis Of The Australian Bushfires Disaster 2019-2020: Futures Implications, Gregory Willson, Violetta Wilk, Ruth Sibson, Ashlee Morgan

Research outputs 2014 to 2021

Purpose: This paper aims to explore the themes and nature of sentiment of Twitter content that discussed the Australian bushfire disaster 2019–2020 and its associated wildlife devastation, with considerations for the future of Australia’s tourism industry. Design/methodology/approach: A large, qualitative data set consisting of all publicly available Twitter posts during the period of the Australian bushfires from December 2019 to March 2020 that mentioned the bushfires and wildlife are explored. Findings: The devastation of wildlife through the Australian bushfire disaster elicited emotionally charged Twitter content from both Australian and overseas users. Positive sentiment focused on offering support to areas impacted …

Foveal Avascular Zone And Choroidal Thickness Are Decreased In Subjects With Hard Drusen And Without High Genetic Risk Of Developing Alzheimer’S Disease, Inés López-Cuenca, Rosa De Hoz, Celia Alcantara-Rey, Elena Salobrar-García, Lorena Elvira-Hurtado, José A. Fernández-Albarral, Ana Barabash, Federico Ramírez-Toraño, Jaisalmer De Frutos-Lucas, Juan J. Salazar, Ana I. Ramírez, José M. Ramírez

Research outputs 2014 to 2021

A family history (FH+) of Alzheimer’s disease (AD) and ɛ4 allele of the ApoE gene are the main genetic risk factors for developing AD, whereas ɛ4 allele plays a protective role in age-related macular degeneration. Ocular vascular changes have been reported in both pathologies. We analyzed the choroidal thickness using optical coherence tomography (OCT) and the foveal avascular zone (FAZ) using OCT-angiography and compared the results with ApoE gene expression, AD FH+, and the presence or absence of hard drusen (HD) in 184 cognitively healthy subjects. Choroidal thickness was statistically significantly different in the (FH−, ɛ4−, HD+) group compared with …

An Early Collaborative Intervention Focusing On Parent-Infant Interaction In The Neonatal Period. A Descriptive Study Of The Developmental Framework, Charlotte Sahlén Helmer, Ulrika Birberg Thornberg, Evalotte Mörelius

Research outputs 2014 to 2021

Moderate to late preterm infants are at risk of developing problems later in life. To support attachment and infants’ development, high quality parent-infant interaction is important. Parent-infant interaction is known to improve through intervention programs but since no such intervention program is addressed directly to moderate to late preterm infants, a tailor-made intervention was developed. The aim was to describe the rationale, development, framework and practical provision of a new early collaborative intervention program. This study has a descriptive design and the intervention is described using the Template for Intervention Description and Replication. During an intervention-session, the preterm infant’s cues …

Growth & Change: Journals Stand For More Than Base Prestige, Connor B. Mcdermott

Lewis & Clark Law Review

No abstract provided.

An Invisible Border Wall And The Dangers Of Internal Agency Control, Jill E. Family

Lewis & Clark Law Review

Administrative law has long struggled to determine the appropriate balance between internal and external control over federal agencies. Some scholars posit that internal agency controls (those from within the executive branch) are optimal checks on agency behavior. In fact, some argue that external control (from Congress or the courts) is detrimental to agency governance. This Article presents a cautionary tale for those who discount the role of external control; it depicts a case study that poses a major challenge to those who theorize that internal agency controls are a sufficient check on agency behavior.

This case study analyzes the Trump …

Tobacco Reborn: The Rise Of E-Cigarettes And Regulatory Approaches, Daniel G. Aaron

Lewis & Clark Law Review

This Article examines e-cigarettes, FDA-regulated products which heat nicotine-containing fluid into an aerosol to be breathed into the lungs. Recent data show that e-cigarettes are used by about one-fifth of U.S. high school students. Given that we have, in the Surgeon General’s words, reached an epidemic of youth e-cigarette use, it is worth asking how a product within FDA jurisdiction became a serious threat to 3.6 million youth.

This Article reviews the law surrounding e-cigarettes and the history of FDA’s attempts to regulate them. Administrative law doctrines instruct us that increased presidential control will rein in misbehaving agencies by allowing …

Fecal Sample Collection Methods And Time Of Day Impact Microbiome Composition And Short Chain Fatty Acid Concentrations, Jacquelyn Jones, Stacey N. Reinke, Alishum Ali, Debra J. Palmer, Claus T. Christophersen

Research outputs 2014 to 2021

Associations between the human gut microbiome and health outcomes continues to be of great interest, although fecal sample collection methods which impact microbiome studies are sometimes neglected. Here, we expand on previous work in sample optimization, to promote high quality microbiome data. To compare fecal sample collection methods, amplicons from the bacterial 16S rRNA gene (V4) and fungal (ITS2) region, as well as short chain fatty acid (SCFA) concentrations were determined in fecal material over three timepoints. We demonstrated that spot sampling of stool results in variable detection of some microbial members, and inconsistent levels of SCFA; therefore, sample homogenization …

Estimating The Economic Cost Of Nurse Sensitive Adverse Events Amongst Patients In Medical And Surgical Settings, Aileen Murphy, Peter Griffiths, Christine Duffield, Noeleen M. Brady, Anne Philomena Scott, Jane Ball, Jonathan Drennan

Research outputs 2014 to 2021

Aims: To identify the costs associated with nurse sensitive adverse events and the impact of these events on patients’ length of stay. Design: Retrospective cohort study using administrative hospital data. Methods: Data were sourced from patient discharge information (N = 5544) from six acute wards within three hospitals (July 2016–October 2017). A retrospective patient record review was undertaken by extracting data from the hospitals’ administrative systems on inpatient discharges, length of stay and diagnoses; eleven adverse events sensitive to nurse staffing were identified within the administrative system. A negative binomial regression is employed to assess the impact of nurse sensitive …

Effect Of Occupational Therapy Home Visit Discharge Planning On Participation After Stroke: Protocol For The Home Rehab Trial, Natasha A. Lannin, Lindy Clemson, Avril Drummond, Mandy Stanley, Leonid Churilov, Kate Laver, Sophie O'Keefe, Ian Cameron, Maria Crotty, Tim Usherwood, Nadine E. Andrew, Laura Jolliffe, Dominique A. Cadilhac

Research outputs 2014 to 2021

Introduction: After first stroke, the transition from rehabilitation to home can be confronting and fraught with challenges. Although stroke clinical practice guidelines recommend predischarge occupational therapy home visits to ensure safe discharge and provision of appropriate equipment, there is currently limited evidence to support this recommendation. Methods and analysis: The HOME Rehab trial is a national, multicentre, phase III randomised controlled trial with concealed allocation, blinded assessment and intention-to-treat analysis being conducted in Australia. The trial aim is to determine the effect and potential cost-effectiveness of an enhanced occupational therapy discharge planning intervention that involves pre and postdischarge home visits, …

Critical Role Of General Practitioners In Preventing Readmission Following Emergency Department Alcohol Screening And Brief Intervention Management Of Alcohol-Related Problems, Simon Hazeldine, Imogen Davies, Robert J. Tait, John K. Olynyk

Research outputs 2014 to 2021

Introduction/Objectives: Alcohol screening and brief intervention (ASBI) strategies are useful in general practice (GP) but their effectiveness in the emergency department (ED) is unclear. We evaluated the effect of ED-based ASBI on re-admissions. Methods: 453 ED subjects exceeding the threshold score on the three-item Alcohol Use Disorders Identification Test-Consumption (females 3+: males 4+) were randomized. We conducted telephone follow-up at 1 and 3 months and recorded hospital events 6 months pre- and post-enrolment. Results: Median weekly alcohol use was 20 standard drinks (interquartile range (IQR) 9-45) on enrolment. After 3 months, 247 (55%) were able to be re-interviewed. Median alcohol …