Digital Commons Network^™

Access To A Regular Primary Care Physician Among Young People With Early Psychosis In Ontario, Canada, Rebecca Rodrigues, Jennifer N S Reid, Joshua C. Wiener, Suzanne Archie, Richard G Booth, Chiachen Cheng, Arlene G Macdougall, Lena Palaniyappan, Bridget L Ryan, Aristotle Voineskos, Paul Kurdyak, Saadia Hameed Jan, Kelly K. Anderson

Epidemiology and Biostatistics Publications

AIM: Access to a primary care physician in early psychosis facilitates help-seeking and engagement with psychiatric treatment. We examined access to a regular primary care physician in people with early psychosis, compared to the general population, and explored factors associated with access.

METHODS: Using linked health administrative data from Ontario (Canada), we identified people aged 14-35 years with a first diagnosis of nonaffective psychotic disorder (n = 39 449; 2005-2015). We matched cases to four randomly selected general population controls based on age, sex, neighbourhood, and index date (n = 157 796). We used modified Poisson regression to estimate prevalence …

A Tale Of Two Targets: Examining The Differential Effects Of Posterior Cingulate Cortex- And Amygdala-Targeted Fmri-Neurofeedback In A Ptsd Pilot Study, Jonathan M. Lieberman, Daniela Rabellino, Maria Densmore, Paul Frewen, David Steyrl, Frank Scharnowski, Jean Theberge, Niki Hosseini-Kamkar, Richard W.J. Neufeld, Rakesh Jetly, Benicio N. Frey, Tomas Ros, Ruth A. Lanius, Andrew A. Nicholson

Department of Medicine Publications

Introduction: Real-time fMRI-based neurofeedback (rt-fMRI-NFB) is a non-invasive technology that enables individuals to self-regulate brain activity linked to neuropsychiatric symptoms, including those associated with post-traumatic stress disorder (PTSD). Selecting the target brain region for neurofeedback-mediated regulation is primarily informed by the neurobiological characteristics of the participant population. There is a strong link between PTSD symptoms and multiple functional disruptions in the brain, including hyperactivity within both the amygdala and posterior cingulate cortex (PCC) during trauma-related processing. As such, previous rt-fMRI-NFB studies have focused on these two target regions when training individuals with PTSD to regulate neural activity. However, the differential …

Social Capital Associates With Better Cognitive Health, Oral Health And Epigenetic Age Deceleration: Findings From The Canadian Longitudinal Study On Aging., Aileen Liang, Noha Gomaa

Department of Medicine Publications

Background: Social exposures are linked to an array of health outcomes, especially around aging. In this study, we examined the association of social capital, defined as social relationships and networks, with clinical and biological outcomes including cognitive health, oral inflammation, and epigenetic aging. Methods: We used data from the Canadian Longitudinal Study on Aging (CLSA) (n =1,479; aged 45–85 years), categorizing social capital as structural and cognitive capital. Oral inflammation was determined as the presence of gum bleeding. Epigenetic aging was computed as the difference between chronological age and DNA methylation age. We constructed multivariable regression models adjusted for covariates …

Corrosion Of Oil Pipeline: A Case Study On The Niger Delta Region Of Nigeria., Victor U. Okoro

Corrosion Research

Corrosion of oil pipelines in Nigeria, particularly in the Niger Delta region, has extensive and detrimental environmental and societal impacts. This issue results in substantial financial losses and reputational damage for oil companies operating in the area. Local communities suffer economically, affecting agriculture and food security. Furthermore, corrosion-related oil spills lead to air quality degradation by releasing volatile organic compounds and greenhouse gases, contributing to respiratory issues and worsening climate change.

These oil spill cleanups are costly and time-consuming, with estimated expenses reaching billions of dollars. Using the Nembe Creek Trunk Line (NCTL) case study, it is evident that addressing …

Impact Assessment Of The Washington D.C. And Flint, Michigan Water Crises, Waruni G. K Senanayake

Corrosion Research

No abstract provided.

Comparison Between Washington D.C. And Flint Crises, Waruni G. K Senanayake

Corrosion Research

No abstract provided.

A Novel Multidimensional Reference Model For Heterogeneous Textual Datasets Using Context, Semantic And Syntactic Clues, Ganesh Kumar, Shuib Basri, Abdullahi Abubakar Imam, Abdullateef Abdullateef Oluwagbemiga Balogun, Hussaini Mamman, Luiz Fernando Capretz

Electrical and Computer Engineering Publications

With the advent of technology and use of latest devices, they produces voluminous data. Out of it, 80% of the data are unstructured and remaining 20% are structured and semi-structured. The produced data are in heterogeneous format and without following any standards. Among heterogeneous (structured, semi-structured and unstructured) data, textual data are nowadays used by industries for prediction and visualization of future challenges. Extracting useful information from it is really challenging for stakeholders due to lexical and semantic matching. Few studies have been solving this issue by using ontologies and semantic tools, but the main limitations of proposed work were …

Search-Based Fairness Testing: An Overview, Hussaini Mamman, Shuib Basri, Abdullateef Balogun, Abdullahi Abubakar Imam, Ganesh Kumar, Luiz Fernando Capretz

Electrical and Computer Engineering Publications

Artificial Intelligence (AI) has demonstrated remarkable capabilities in domains such as recruitment, finance, healthcare, and the judiciary. However, biases in AI systems raise ethical and societal concerns, emphasizing the need for effective fairness testing methods. This paper reviews current research on fairness testing, particularly its application through search-based testing. Our analysis highlights progress and identifies areas of improvement in addressing AI systems’ biases. Future research should focus on leveraging established search-based testing methodologies for fairness testing.

Confronting An Extractive Racialised Genre System: Black Lives Matter, Royalty Recovery And Musical Reparations, Olufunmilayo B. Arewa, Matt Stahl

FIMS Publications

Introduction to the chapter:

The political-economic practices of commercial music production may be plausibly analogised to a relation of plunder and redistribution, clothed in and (legally) legitimated by recording and publishing contracts. For African Americans, this was particularly true during the pre-Civil Rights era. During that time, entrepreneurs and companies that offered recording, song writing and publishing contracts to African Americans were able to take advantage of social-structural contexts of considerable societal racial exploitation and violence targeted at African Americans. Further, for all artists prior to (and even during) the digital era, the realities of the commercial recording industry have …

Corrosion Case Study On Historical Monuments, Maryam Khalilvand Nahid

Corrosion Research

No abstract provided.

Fall Town Hall On Research Data Management, Megan Hurst, Christine Madsen, Kristi Thompson

Western Libraries Presentations

This Town Hall was held to share recommendations for Research Data Management at Western that result from a gap analysis to understand the RDM needs at Western, conducted by Athenaeum21, a strategy and technology consultancy engaged by Western for this work. The recommendations will inform the implementation of Western’s Research Data Management Strategy, which shapes Research Data Management at Western for all researchers, grant funded or not, student or faculty, regardless of discipline.

Corrosion Of Implant Materials In The Human Body, Maedeh Barzmehri

Corrosion Research

This paper extensively examines the complex problem of implant corrosion occurring within the human body. The corrosion of implants gives rise to substantial challenges, encompassing compromised implant durability, patient safety concerns, and potential adverse impacts on the long-term functionality of the medical device. The study's primary objectives include offering a concise overview of the various corrosion mechanisms that impact a range of implant materials and outlining health complications linked to the byproducts of implant corrosion. Furthermore, it delves into a cost analysis specific to hip or knee revision arthroplasty, which has become a prevalent scenario in implant failure cases on …

Corrosion Case Study On Pipeline - Economic And Environmental Assessment, Kangze Ren

Corrosion Research

The corrosion issue, which was difficult to tackle as the former Soviets had predicted in the first place, was not appropriately addressed by the colonialism-tailored oil production, resulting in astronomical budget blow-out and environmental disaster in the North Caspian Sea region. Unfortunately, limited information on the pipeline leaking accidents regarding the project cost, social impact, and environmental impact was released to the public. The purpose of the review is to draw attention to the Kashagan pipeline leaking accidents, the factors that influence corrosion management for oil production, and the consequences of not adopting proper corrosion control.

Corrosion Case Study On Pipeline, Kangze Ren

Corrosion Research

The Kashagan pipeline leaks were likely caused by sulfur stress corrosion cracking, a combined corrosion mechanism developed by the presence of high pressure, the high level of hydrogen sulfide(the main "ingredient" of sour gas), and poor metallurgical choice. Improper welding and poor metallurgical examination were blamed for causing the leaking issue. The purpose of the current review is to raise the alarm about the inappropriate corrosion management of Kashagan oil production and its societal and environmental consequences.

A Short History Of Oer, Emily Carlisle-Johnston

Western Libraries Publications

No abstract provided.

Figures Of Radical Absence: Blanks And Voids In Theory, Literature, And The Arts, Alexandra Irimia

Languages and Cultures Publications

Although post-structuralism highlighted the importance of what is offstage, lost, forgotten, hidden or discarded, silent or silenced, the poetics and politics of absence (much like its ethics and aesthetics) have rarely been discussed across media and disciplines. This book proposes the concept of ‘radical absence’ to describe a certain tradition of resistance to ontology, predication, and representation, contesting their reliance on a metaphysics of presence. Apophatic speech, empty signifiers, and figural voids are some of the figures through which radical absence becomes apparent with unprecedented intensity in twentieth-century theory, literature, film, and the arts. Phantasmatic and outrageous, such figures play …

The Impact Of Lead Corrosion Relating To The Contamination Of Drinking Water In Canada And In Indigenous Communities., Jessie A. Mcdonald

Corrosion Research

No abstract provided.

The Impact Of Lead Corrosion Relating To The Contamination Of Drinking Water In Canada And In Indigenous Communities., Jessie A. Mcdonald

Corrosion Research

No abstract provided.

The Role Of Nurses In Inpatient Geriatric Rehabilitation Units: A Scoping Review, Nicole A. Guitar, Denise M. Connelly, Kristin Prentice, Angela Nguyen, Amanda Mcintyre, Eric F. Tanlaka, Nancy Snobelen

Physical Therapy Publications

Aims: (1) To review and synthesize research on the contributions of nurses to rehabilitation in inpatient geriatric rehabilitation units (GRUs), and (2) to compare these reported contributions to the domains of international rehabilitation nursing competency models. The roles and contributions of nurses (e.g. Registered Practical Nurses, Registered Nurses and Licensed Practical Nurses) in GRUs are non-specific, undervalued, undocumented and unrecognized as part of the formal Canadian rehabilitation process. Design: Arksey and O'Malley's methodological framework for scoping reviews and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews guidelines were used. Methods: Six databases were searched for …

Synergistic Effect Of Nanoclay And Barium Sulfate Fillers On The Corrosion Resistance Of Polyester Powder Coatings, Jinbao Huang, Marshall Shuai Yang, Chengqian Xian, James Joseph Noel, Yolanda S. Hedberg, Jian Chen, Ubong Eduok, Ivan Barker, Jeffrey Daniel Henderson, Haiping Zhang, Liqin Wang, Hui Zhang, Jesse Zhu

Chemistry Publications

No abstract provided.

Validation Of An Integrated Pressure Level Measured Earmold Wideband Real-Ear-To-Coupler Difference Measurement, Matthew Urichuk, David Purcell, Prudence Allen, Susan Scollie

Communication Sciences and Disorders Publications

Objective: To validate measurement of predicted earmold wideband real-ear-to-coupler difference (wRECD) using an integrated pressure level (IPL) calibrated transducer and the incorporation of an acoustically measured tubing length correction. Design: Unilateral earmold SPL wRECD using varied hearing aid tubing length and the proposed predicted earmold IPL wRECD measurement procedure were completed on all participants and compared. Study Sample: 22 normal hearing adults with normal middle ear status were recruited. Results: There were no clinically significant differences between probe-microphone and predicted earmold IPL wRECD measurements between 500 and 2500 Hz. Above 5000 Hz, the predicted earmold IPL wRECD exceeded earmold SPL …

Development And Initial Evaluation Of The Hearing Aid Attribute And Feature Importance Evaluation (Hafie) Questionnaire, Hasan Saleh, Paula Folkeard, Selina Liao, Susan Scollie

Communication Sciences and Disorders Publications

Objectives: To develop and validate a novel questionnaire aimed at providing a structured, evidence-based methodology for hearing aid recommendation and selection using self-reported importance ratings for different modern hearing aid features. Design: The initial questionnaire items were created through a concept mapping approach that involved input from hearing aid users. Hearing care professional focus groups (n¼10) were conducted to assess questionnaire content and design, and to guide modifications. Validation of this initial 34-item version of the questionnaire was conducted using an anonymous online survey tool (Qualtrics). Exploratory factor analysis was used to assess the factor structure of the dataset, using …

Large-Scale Functional Hyperconnectivity Patterns In Trauma-Related Dissociation: An Rs-Fmri Study Of Ptsd And Its Dissociative Subtype, Saurabh B. Shaw, Braeden A. Terpou, Maria Densmore, Jean Theberge, Pau Frewen, Margaret C. Mckinnon, Ruth A. Lanius

Department of Medicine Publications

The dissociative subtype of post-traumatic stress disorder (PTSD) is a distinct PTSD phenotype characterized by trauma-related dissociation, alongside unique patterns of functional connectivity. However, disparate findings across multiple scales of investigation have highlighted the need for a cohesive understanding of dissociative neurobiology. We took a step towards this goal by conducting one of the broadest region of interest (ROI)-to-ROI analyses performed on a PTSD population to date. In this retrospective study, we investigated resting-state functional MRI data collected from a total of 192 participants, 134 of whom were diagnosed with PTSD. Small functional connectivity differences (maximum effect size 0.27) were …

Designing Systems For The Care We Need: A Transformation Journey In Southwestern Ontario., Shannon L. Sibbald, Jacobi Elliott, Alexander Smith, Mulugeta B. Chala, Nancy Dool Kontio, Amber Alpaugh-Bishop, Sarah Jarmain, Atharv Joshi, Mike Mcmahon, Matthew Meyer

Health Studies Publications

Primary care is considered the foundation of any health system. In Ontario, Canada Bills 41 and 74 introduced in 2016 and 2019, respectively, aimed to move towards a primary care-focused and sustainable integrated care approach designed around the needs of local populations. These bills collectively set the stage for integrated care and population health management in Ontario, with Ontario Health Teams (OHTs) introduced as a model of integrated care delivery systems. OHTs aim to streamline patient connectivity through the healthcare system and improve outcomes aligned with the Quadruple Aim. When Ontario released a call for health system partners to apply …

Photography And 21st-Century Migration, Sarah Bassnet, Blessy Augustine

Visual Arts Publications

No abstract provided.

Family, Diaspora, And The Politics Of Care In Griselda San Martin’S The Wall , 2015-16, Sarah Bassnet

Visual Arts Publications

This article examines a series of photographs by Griselda San Martin, a Spanish journalist and documentary photographer based in New York City and Mexico City. The series focuses on the experiences of people at Friendship Park, a bi-national park located in the border region of San Diego, United States, and Tijuana, Mexico. Working in Tijuana, San Martin engaged with families as they attempted to connect with loved ones across the border in San Diego. Many of the people she met at Friendship Park had become separated from family members after living as undocumented migrants in the US and then being …

Integrating Traditional Cs Class Activities With Computing For Social Good, Ethics, And Communications And Leadership Skills, Renato Cortinovis, Devender Goyal, Luiz Fernando Capretz

Electrical and Computer Engineering Publications

Software and information technologies are becoming increasingly integrated and pervasive in human society and range from automated decision making and social media and entertainment, to running critical social and physical infrastructures like government programs, utilities, and financial institutions. As a result, there is a growing awareness of the need to develop professionals who will harness these technologies in fair and inclusive ways and use them to address global issues like health, water management, poverty, and human rights. In this regard, many academic researchers have expressed the need to complement traditional teaching of CS technical skills with computer and information ethics …

Functions Of Disordered Eating Behaviors: A Qualitative Analysis Of The Lived Experience And Clinician Perspectives, Abbigail Kinnear, Jaclyn A. Siegel, Philip C. Masson, Lindsay P. Bodell

Psychology Publications

Background

One method to improve treatment outcomes for individuals with eating disorders (EDs) may be understanding and targeting individuals’ motives for engaging in DE behaviors—or the functions of DE behaviors. The goal of this study was to investigate and categorize the various functions of DE behaviors from the perspectives of adults who engage in DE behaviors and clinicians who treat EDs.

Methods

Individuals who engage in DE behaviors (n = 16) and clinicians who treat EDs (n = 14) were interviewed, and a thematic analysis was conducted to determine key functions of DE behaviors.

Results

Four main functions …

Probing Evidence Of Cerebral White Matter Microstructural Disruptions In Ischemic Heart Disease Before And Following Cardiac Rehabilitation: A Diffusion Tensor Mr Imaging Study., Stefan E Poirier, Neville G Suskin, Alexander V Khaw, Jonathan D Thiessen, Joel K Shoemaker, Udunna C Anazodo

Kinesiology Publications

BACKGROUND: Ischemic heart disease (IHD) is linked to brain white matter (WM) breakdown but how age or disease effects WM integrity, and whether it is reversible using cardiac rehabilitation (CR), remains unclear.

PURPOSE: To assess the effects of brain aging, cardiovascular disease, and CR on WM microstructure in brains of IHD patients following a cardiac event.

STUDY TYPE: Retrospective.

POPULATION: Thirty-five IHD patients (9 females; mean age = 59 ± 8 years), 21 age-matched healthy controls (10 females; mean age = 59 ± 8 years), and 25 younger controls (14 females; mean age = 26 ± 4 years).

FIELD STRENGTH/SEQUENCE: …

Protocol For The Provision Of Amplification V 2023.01, Marlene P. Bagatto, Susan Scollie, Sheila T F Moodie, Richard Seewald, Martyn Hyde, Rana El-Naji, Christine L. Brown, Krystal Beh, Danielle Glista, Marianne Hawkins, Vijayalakshmi Easwar, Anne Marie Tharpe, Jeff Crukley, Charla Levy, Sahar S. Zimmo, Shane Moodie, Frances Richert, Vijay Parsa

National Centre for Audiology

This Protocol addresses the provision of amplification (hereafter: 'Amplification') to infants and children who are receiving services from the Ontario Infant Hearing Program (IHP). For the purposes of this protocol, providing amplification includes the processes of prescribing a hearing aid (air or bone conduction) and/or other hearing assistance technologies based on appropriate assessment information, verification that the specified acoustical performance targets have been achieved, fitting the device on the child, and ongoing evaluation of device effectiveness in daily life. Amplification within the IHP does not include the provision of cochlear implants.