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Articles 301 - 330 of 2904
Full-Text Articles in Medicine and Health Sciences
In Vivo Magnetic Resonance Spectroscopy Of Hyperpolarized [1-, Lauren M Smith, Conrad B Pitts, Lanette J Friesen-Waldner, Neetin H Prabhu, Katherine E Mathers, Kevin J Sinclair, Trevor P Wade, Timothy Regnault, Charles A Mckenzie
In Vivo Magnetic Resonance Spectroscopy Of Hyperpolarized [1-, Lauren M Smith, Conrad B Pitts, Lanette J Friesen-Waldner, Neetin H Prabhu, Katherine E Mathers, Kevin J Sinclair, Trevor P Wade, Timothy Regnault, Charles A Mckenzie
Paediatrics Publications
BACKGROUND: Alterations in glycolysis are central to the increasing incidence of non-alcoholic fatty liver disease (NAFLD), highlighting a need for in vivo, non-invasive technologies to understand the development of hepatic metabolic aberrations.
PURPOSE: To use hyperpolarized magnetic resonance spectroscopy (MRS) and proton density fat fraction (PDFF) magnetic resonance imaging (MRI) techniques to investigate the effects of a chronic, life-long exposure to the Western diet (WD) in an animal model resulting in NAFLD; to investigate the hypothesis that exposure to the WD will result in NAFLD in association with altered pyruvate metabolism.
STUDY TYPE: Prospective.
ANIMAL MODEL: Twenty-eight male guinea pigs …
Family Functioning As A Moderator In The Relation Between Perceived Stress And Psychotic-Like Experiences Among Adolescents During Covid-19, Zhipeng Wu, Zhulin Zou, Feiwen Wang, Zhibiao Xiang, Mengran Zhu, Yicheng Long, Haojuan Tao, Lena Palaniyappan, Zhening Liu
Family Functioning As A Moderator In The Relation Between Perceived Stress And Psychotic-Like Experiences Among Adolescents During Covid-19, Zhipeng Wu, Zhulin Zou, Feiwen Wang, Zhibiao Xiang, Mengran Zhu, Yicheng Long, Haojuan Tao, Lena Palaniyappan, Zhening Liu
Brain and Mind Institute Researchers' Publications
Background: The COVID-19 pandemic has increased psychological stress among adolescents, and the relation between perceived stress (PS) and psychotic-like experiences (PLEs) has been well-established. However, little is known about the role of family functioning (FF) in this relation, especially when adolescents experienced the extended lockdown period with family members. Methods: A total of 4807 adolescents completed this retrospective paper-and-pencil survey after school reopening between May 14th and June 6th, 2020 in Hunan Province, China. We measured PS with the Perceived stress scale (PSS-10), PLEs with the eight positive items from Community Assessment of Psychic Experiences (CAPE-8), and FF with the …
Confronting Complexity And Supporting Transformation Through Health Systems Mapping: A Case Study., Anna J Hussey, Shannon L Sibbald, Madonna Ferrone, Alyson Hergott, Robert Mckelvie, Cathy Faulds, Zofe Roberts, Andrew D Scarffe, Matthew J Meyer, Susan Vollbrecht, Christopher Licskai
Confronting Complexity And Supporting Transformation Through Health Systems Mapping: A Case Study., Anna J Hussey, Shannon L Sibbald, Madonna Ferrone, Alyson Hergott, Robert Mckelvie, Cathy Faulds, Zofe Roberts, Andrew D Scarffe, Matthew J Meyer, Susan Vollbrecht, Christopher Licskai
Health Studies Publications
INTRODUCTION: Health systems are a complex web of interacting and interconnected parts; introducing an intervention, or the allocation of resources, in one sector can have effects across other sectors and impact the entire system. A prerequisite for effective health system reorganisation or transformation is a broad and common understanding of the current system amongst stakeholders and innovators. Chronic obstructive pulmonary disease (COPD) and heart failure (HF) are common chronic diseases with high health care costs that require an integrated health system to effectively treat.
STUDY DESCRIPTION: This case study documents the first phase of system transformation at a regional level …
Improved Radiation Expression Profiling In Blood By Sequential Application Of Sensitive And Specific Gene Signatures, Eliseos J. Mucaki, Ben C. Shirley, Peter K. Rogan
Improved Radiation Expression Profiling In Blood By Sequential Application Of Sensitive And Specific Gene Signatures, Eliseos J. Mucaki, Ben C. Shirley, Peter K. Rogan
Biochemistry Publications
Purpose. Combinations of expressed genes can discriminate radiation-exposed from normal control blood samples by machine learning based signatures (with 8 to 20% misclassification rates). These signatures can quantify therapeutically-relevant as well as accidental radiation exposures. The prodromal symptoms of Acute Radiation Syndrome (ARS) overlap those present in Influenza and Dengue Fever infections. Surprisingly, these human radiation signatures misclassified gene expression profiles of virally infected samples as false positive exposures. The present study investigates these and other confounders, and then mitigates their impact on signature accuracy.
Methods. This study investigated recall by previous and novel radiation signatures independently derived …
Looking Back And Moving Forward: A Scoping Review Of Research On Preschool Autism Interventions In The Field Of Speech-Language Pathology, Amanda Binns, Rachael Smyth, Allison Andres, Joyce Lam, Janis Oram Cardy
Looking Back And Moving Forward: A Scoping Review Of Research On Preschool Autism Interventions In The Field Of Speech-Language Pathology, Amanda Binns, Rachael Smyth, Allison Andres, Joyce Lam, Janis Oram Cardy
PRECISe Preschool Speech and Language Publications
Background & Aims: Speech-language pathology services are frequently accessed by families of children who have suspected or diagnosed autism. This is expected given that social communication differences are a core feature of autism. This review looked broadly at the state of research in the field of speech-language pathology and preschool autism interventions in order to identify the types of studies that could be used to inform the practices of speech-language pathologists (SLPs), and to identify gaps in the field so they can be addressed in future research. Specifically, we examined the extent of research conducted on interventions delivered (at least …
Supplementary Material For: Ex Vivo Thrombus Mr Imaging Features And Patient Clinical Data Enable Prediction Of Acute Ischemic Stroke Cause, Spencer D. Christiansen
Supplementary Material For: Ex Vivo Thrombus Mr Imaging Features And Patient Clinical Data Enable Prediction Of Acute Ischemic Stroke Cause, Spencer D. Christiansen
Robarts Vascular Research Publications
SUPPLEMENTARY MATERIAL to:
Ex Vivo Thrombus Magnetic ResonanceImaging Features and Patient Clinical DataEnable Prediction of Acute Ischemic Stroke Cause https://doi.org/10.1161/SVIN.121.000157
Spencer D. Christiansen, PhD,1,2 Junmin Liu, PhD,1 Maria Bres Bullrich, MD,3 Manas Sharma, MD,4 Sachin K. Pandey, MD,4 Melfort Boulton, MD, PhD,3 Sebastian Fridman, MD, MPH,3 Luciano A. Sposato, MD, MBA,3 and Maria Drangova, PhD1,2
1 Robarts Research Institute, London, Ontario, Canada,
2 Department of Medical Biophysics, Western University, London, Ontario, Canada,
3 Department of Clinical Neurological Sciences, Western University, London, Ontario, Canada,
4 Department of Medical Imaging, Western University, London, Ontario, Canada
Functional Reach Test, Single-Leg Stance Test, And Tinetti Performance-Oriented Mobility Assessment For The Prediction Of Falls In Older Adults: A Systematic Review, Humberto Omaña, Kari Bezaire, Kyla Brady, Jayme Davies, Nancy Louwagie, Sean Power, Sydney Santin, Susan W. Hunter
Functional Reach Test, Single-Leg Stance Test, And Tinetti Performance-Oriented Mobility Assessment For The Prediction Of Falls In Older Adults: A Systematic Review, Humberto Omaña, Kari Bezaire, Kyla Brady, Jayme Davies, Nancy Louwagie, Sean Power, Sydney Santin, Susan W. Hunter
Physical Therapy Publications
OBJECTIVE: The authors sought to systematically review the existing literature on the falls-related diagnostic test properties of the Functional Reach Test (FRT), single-leg stance test (SLST), and Tinetti Performance-Oriented Mobility Assessment (POMA) in older adults across settings and patient populations.
METHODS: The PubMed, EMBASE, and CINAHL databases were searched (inception-July 2020). Inclusion criteria were participants aged 60 years or more, prospectively recorded falls, and the reporting of falls-related predictive validity. Manuscripts not published in English were excluded. Methodological quality of reporting was assessed using the Tooth Scale.
RESULTS: Of 1071 studies reviewed, 21 met the inclusion criteria (12 POMA, 8 …
The Mental Well-Being And Coping Strategies Of Canadian Adolescents During The Covid-19 Pandemic: A Qualitative, Cross-Sectional Study, Kendra Nelson Ferguson, Stephanie E. Coen, Danielle Tobin, Gina Martin, Jamie A. Seabrook, Jason A. Gilliland
The Mental Well-Being And Coping Strategies Of Canadian Adolescents During The Covid-19 Pandemic: A Qualitative, Cross-Sectional Study, Kendra Nelson Ferguson, Stephanie E. Coen, Danielle Tobin, Gina Martin, Jamie A. Seabrook, Jason A. Gilliland
Paediatrics Publications
BACKGROUND: Qualitative research is lacking on the mental well-being of adolescents during the COVID-19 pandemic. The aim of this study was to explore the feelings and emotions adolescents experienced during the first wave of the COVID-19 pandemic and the coping strategies they identified and employed to manage those emotions. METHODS: Participants living in Canada aged 13-19 years were recruited through social media platforms and youth-serving organizations. Qualitative data were gathered from 2 open-ended questions included in a youth-informed cross-sectional online survey: "What feelings and emotions have you experienced around the pandemic?" and "What coping strategies have you used during the …
Primary Care Bonus Payments And Patient-Reported Access In Urban Ontario: A Cross-Sectional Study, Kamila Premji, Ewa Sucha, Richard H. Glazier, Michael E. Green, Walter P. Wodchis, William E. Hogg, Tara Kiran, Eliot Frymire, Thomas R. Freeman, Bridget L. Ryan
Primary Care Bonus Payments And Patient-Reported Access In Urban Ontario: A Cross-Sectional Study, Kamila Premji, Ewa Sucha, Richard H. Glazier, Michael E. Green, Walter P. Wodchis, William E. Hogg, Tara Kiran, Eliot Frymire, Thomas R. Freeman, Bridget L. Ryan
Family Medicine Publications
BACKGROUND: Rurality strongly correlates with higher pay-for-performance access bonuses, despite higher emergency department use and fewer primary care services than in urban settings. We sought to evaluate the relation between patient-reported access to primary care and access bonus payments in urban settings. METHODS: We conducted a cross-sectional, secondary data analysis using Ontario survey and health administrative data from 2013 to 2017. We used administrative data to calculate annual access bonuses for eligible urban family physicians. We linked this payment data to adult (≥ 16 yr) patient data from the Health Care Experiences Survey to examine the relation between access bonus …
Improved Segmentation Of The Intracranial And Ventricular Volumes In Populations With Cerebrovascular Lesions And Atrophy Using 3d Cnns, Emmanuel E. Ntiri, Melissa F. Holmes, Parisa M. Forooshani, Joel Ramirez, Fuqiang Gao, Miracle Ozzoude, Sabrina Adamo, Christopher J.M. Scott, Dar Dowlatshahi, Jane M. Lawrence-Dewar, Donna Kwan, Anthony E. Lang, Sean Symons, Robert Bartha, Stephen Strother, Jean Claude Tardif, Mario Masellis, Richard H. Swartz, Alan Moody, Sandra E. Black, Maged Goubran
Improved Segmentation Of The Intracranial And Ventricular Volumes In Populations With Cerebrovascular Lesions And Atrophy Using 3d Cnns, Emmanuel E. Ntiri, Melissa F. Holmes, Parisa M. Forooshani, Joel Ramirez, Fuqiang Gao, Miracle Ozzoude, Sabrina Adamo, Christopher J.M. Scott, Dar Dowlatshahi, Jane M. Lawrence-Dewar, Donna Kwan, Anthony E. Lang, Sean Symons, Robert Bartha, Stephen Strother, Jean Claude Tardif, Mario Masellis, Richard H. Swartz, Alan Moody, Sandra E. Black, Maged Goubran
Medical Biophysics Publications
Successful segmentation of the total intracranial vault (ICV) and ventricles is of critical importance when studying neurodegeneration through neuroimaging. We present iCVMapper and VentMapper, robust algorithms that use a convolutional neural network (CNN) to segment the ICV and ventricles from both single and multi-contrast MRI data. Our models were trained on a large dataset from two multi-site studies (N = 528 subjects for ICV, N = 501 for ventricular segmentation) consisting of older adults with varying degrees of cerebrovascular lesions and atrophy, which pose significant challenges for most segmentation approaches. The models were tested on 238 participants, including subjects with …
Regional Brain And Spinal Cord Volume Loss In Spinocerebellar Ataxia Type 3, Jennifer Faber, Tamara Schaprian, Koyak Berkan, Kathrin Reetz, Marcondes Cavalcante França, Thiago Junqueira Ribeiro De Rezende, Jiang Hong, Weihua Liao, Bart Van De Warrenburg, Judith Van Gaalen, Alexandra Durr, Fanny Mochel, Paola Giunti, Hector Garcia-Moreno, Ludger Schoels, Holger Hengel, Matthis Synofzik, Benjamin Bender, Gulin Oz, James Joers, Jereon J. De Vries, Jun Suk Kang, Dagmar Timmann-Braun, Heike Jacobi, Jon Infante, Richard Joules, Sandro Romanzetti, Jorn Diedrichsen, Matthias Schmid, Robin Wolz, Thomas Klockgether
Regional Brain And Spinal Cord Volume Loss In Spinocerebellar Ataxia Type 3, Jennifer Faber, Tamara Schaprian, Koyak Berkan, Kathrin Reetz, Marcondes Cavalcante França, Thiago Junqueira Ribeiro De Rezende, Jiang Hong, Weihua Liao, Bart Van De Warrenburg, Judith Van Gaalen, Alexandra Durr, Fanny Mochel, Paola Giunti, Hector Garcia-Moreno, Ludger Schoels, Holger Hengel, Matthis Synofzik, Benjamin Bender, Gulin Oz, James Joers, Jereon J. De Vries, Jun Suk Kang, Dagmar Timmann-Braun, Heike Jacobi, Jon Infante, Richard Joules, Sandro Romanzetti, Jorn Diedrichsen, Matthias Schmid, Robin Wolz, Thomas Klockgether
Brain and Mind Institute Researchers' Publications
Background: Given that new therapeutic options for spinocerebellar ataxias are on the horizon, there is a need for markers that reflect disease-related alterations, in particular, in the preataxic stage, in which clinical scales are lacking sensitivity. Objective: The objective of this study was to quantify regional brain volumes and upper cervical spinal cord areas in spinocerebellar ataxia type 3 in vivo across the entire time course of the disease. Methods: We applied a brain segmentation approach that included a lobular subsegmentation of the cerebellum to magnetic resonance images of 210 ataxic and 48 preataxic spinocerebellar ataxia type 3 mutation carriers …
Pitch Discrimination Is Better For Synthetic Timbre Than Natural Musical Instrument Timbres, Despite Familiarity, Emma Holmes, Elizabeth Kinghorn, Lucy Mcgarry, Elizabeth Busari, Timothy D. Griffiths, Ingrid Johnsrude
Pitch Discrimination Is Better For Synthetic Timbre Than Natural Musical Instrument Timbres, Despite Familiarity, Emma Holmes, Elizabeth Kinghorn, Lucy Mcgarry, Elizabeth Busari, Timothy D. Griffiths, Ingrid Johnsrude
Brain and Mind Institute Researchers' Publications
Pitch discrimination is better for complex tones than for pure tones, but how more subtle differences in timbre affect pitch discrimination is not fully understood. This study compared pitch discrimination thresholds of flat-spectrum harmonic complex tones with those of natural sounds played by musical instruments of three different timbres (violin, trumpet, and flute). To investigate whether natural familiarity with sounds of particular timbres affects pitch discrimination thresholds, this study recruited musicians who were trained on one of the three instruments. We found that flautists and trumpeters could discriminate smaller differences in pitch for artificial flat-spectrum tones, despite their unfamiliar timbre, …
Co-Contraction Of Ankle Muscle Activity During Quiet Standing In Individuals With Incomplete Spinal Cord Injury Is Associated With Postural Instability, Kai Lon Fok, Jae W Lee, Janelle Unger, Katherine Chan, Kristin E Musselman, Kei Masani
Co-Contraction Of Ankle Muscle Activity During Quiet Standing In Individuals With Incomplete Spinal Cord Injury Is Associated With Postural Instability, Kai Lon Fok, Jae W Lee, Janelle Unger, Katherine Chan, Kristin E Musselman, Kei Masani
Physical Therapy Publications
Previous findings indicate that co-contractions of plantarflexors and dorsiflexors during quiet standing increase the ankle mechanical joint stiffness, resulting in increased postural sway. Balance impairments in individuals with incomplete spinal cord injury (iSCI) may be due to co-contractions like in other individuals with reduced balance ability. Here we investigated the effect of co-contraction between plantar- and dorsiflexors on postural balance in individuals with iSCI (iSCI-group) and able-bodied individuals (AB-group). Thirteen able-bodied individuals and 13 individuals with iSCI were asked to perform quiet standing with their eyes open (EO) and eyes closed (EC). Kinetics and electromyograms from the tibialis anterior (TA), …
Are Family Medicine Residents Trained To Counsel Patients On Physical Activity? The Canadian Experience And A Call To Action., Jane Thornton, Karim Khan, Richard Weiler, Christopher Mackie, Robert Petrella
Are Family Medicine Residents Trained To Counsel Patients On Physical Activity? The Canadian Experience And A Call To Action., Jane Thornton, Karim Khan, Richard Weiler, Christopher Mackie, Robert Petrella
Family Medicine Publications
Physical inactivity is a leading risk factor for non-communicable diseases (NCDs) and early mortality. Family physicians have an important role in providing physical activity counselling to patients to help prevent and treat NCDs. Lack of training on physical activity counselling is a barrier in undergraduate medical education, yet little is known regarding physical activity teaching in postgraduate family medicine residency. We assessed the provision, content and future direction of physical activity teaching in Canadian postgraduate family medicine residency programs to address this data gap. Fewer than half of Canadian Family Medicine Residency Programme directors reported providing structured physical activity counselling …
Do Women Empowerment Indicators Predict Receipt Of Quality Antenatal Care In Cameroon? Evidence From A Nationwide Survey, Edward Kwabena Ameyaw, Kwamena Sekyi Dickson, Kenneth Setorwu Adde, Obidimma Ezezika
Do Women Empowerment Indicators Predict Receipt Of Quality Antenatal Care In Cameroon? Evidence From A Nationwide Survey, Edward Kwabena Ameyaw, Kwamena Sekyi Dickson, Kenneth Setorwu Adde, Obidimma Ezezika
Health Studies Publications
Background
World Health Organisation (WHO) recommends quality antenatal care (ANC) for all pregnant women, as one of the strategies for achieving targets 3.1 and 3.2 of the sustainable development goals. Maternal mortality ratio remains high in Cameroon (782 maternal deaths per 100,000 live births). Extant literature suggest a positive association between women empowerment indicators and maternal healthcare utilisation in general. In Cameroon, this association has not received scholarly attention. To fill this knowledge gap, we investigated the association between women empowerment indicators and quality ANC in Cameroon.
Methods
Data of 4615 women of reproductive age were analysed from the women’s …
Functional Organization Of Frontoparietal Cortex In The Marmoset Investigated With Awake Resting-State Fmri, Yuki Hori, Justine C. Cléry, David J. Schaeffer, Ravi S. Menon, Stefan Everling
Functional Organization Of Frontoparietal Cortex In The Marmoset Investigated With Awake Resting-State Fmri, Yuki Hori, Justine C. Cléry, David J. Schaeffer, Ravi S. Menon, Stefan Everling
Brain and Mind Institute Researchers' Publications
Frontoparietal networks contribute to complex cognitive functions in humans and macaques, such as working memory, attention, task-switching, response suppression, grasping, reaching, and eye movement control. However, there has been no comprehensive examination of the functional organization of frontoparietal networks using functional magnetic resonance imaging in the New World common marmoset monkey (Callithrix jacchus), which is now widely recognized as a powerful nonhuman primate experimental animal. In this study, we employed hierarchical clustering of interareal blood oxygen level-dependent signals to investigate the hypothesis that the organization of the frontoparietal cortex in the marmoset follows the organizational principles of the macaque frontoparietal …
Sports Equity: A New Bjsm E-Edition Brings The Fundamentals Back Into Focus., Yetsa A Tuakli-Wosornu, Phathokuhle Cele Zondi, Gail Knudson, Yuka Tsukahara, Dikaia Chatziefstathiou, Sean Tweedy, Jane S Thornton
Sports Equity: A New Bjsm E-Edition Brings The Fundamentals Back Into Focus., Yetsa A Tuakli-Wosornu, Phathokuhle Cele Zondi, Gail Knudson, Yuka Tsukahara, Dikaia Chatziefstathiou, Sean Tweedy, Jane S Thornton
Family Medicine Publications
No abstract provided.
The Good Food For Learning Universal Curriculum-Integrated Healthy School Lunch Intervention: Protocol For A Two-Year Matched Control Pre-Post And Case Study, Rachel Engler-Stringer, Jennifer Black, Nazeem Muhajarine, Wanda Martin, Jason Gilliland, Janet Mcvittie, Sara Kirk, Hannah Wittman, Amin Mousavi, Sinikka Elliott, Brent Hills, Gordon Androsoff, Debbie Field, Brit Macdonald, Chelsea Belt, Hassan Vatanparast
The Good Food For Learning Universal Curriculum-Integrated Healthy School Lunch Intervention: Protocol For A Two-Year Matched Control Pre-Post And Case Study, Rachel Engler-Stringer, Jennifer Black, Nazeem Muhajarine, Wanda Martin, Jason Gilliland, Janet Mcvittie, Sara Kirk, Hannah Wittman, Amin Mousavi, Sinikka Elliott, Brent Hills, Gordon Androsoff, Debbie Field, Brit Macdonald, Chelsea Belt, Hassan Vatanparast
Paediatrics Publications
Background: Good nutrition affects children's health, well-being, and learning, and schools offer an important setting to promote healthy behaviors that can last a lifetime. Once children reach school age, they spend more of their waking hours in school than in any other environment. Children's eating habits may be easier to influence than those of adults. In Canada, households with children are more likely to experience food insecurity, and school food programs that are universally available to all children can support the development of healthy eating patterns across groups of varying socioeconomic status. There is a significant gap in the rigorous …
Rates And Determinants Of Mother's Own Milk Feeding In Infants Born Very Preterm, Dinesh Dharel, Nalini Singhal, Christel Wood, Zenon Cieslak, Fabiana Bacchini, Prakesh S. Shah, Xiang Y. Ye, Belal Alshaikh
Rates And Determinants Of Mother's Own Milk Feeding In Infants Born Very Preterm, Dinesh Dharel, Nalini Singhal, Christel Wood, Zenon Cieslak, Fabiana Bacchini, Prakesh S. Shah, Xiang Y. Ye, Belal Alshaikh
Paediatrics Publications
Objectives: To examine rates and determinants of mother's own milk (MOM) feeding at hospital discharge in a cohort of infants born very preterm within the Canadian Neonatal Network (CNN). Study design: This was a population-based cohort study of infants born at (NICUs) participating in the CNN between January 1, 2015, and December 31, 2018. We examined the rates and determinants of MOM use at discharge home among the participating NICUs. We used multivariable logistic regression analysis to identify independent determinants of MOM feeding. Results: Among the 6404 infants born very preterm and discharged home during the study period, 4457 (70%) …
The Conundrum Of Low Covid-19 Mortality Burden In Sub-Saharan Africa: Myth Or Reality?, Janica Adams, Mary J. Mackenzie, Adeladza Kofi Amegah, Alex Ezeh, Muktar A. Gadanya, Akinyinka Omigbodun, Ahmed M. Sarki, Paul Thistle, Abdhalah K. Ziraba, Saverio Stranges, Michael Silverman
The Conundrum Of Low Covid-19 Mortality Burden In Sub-Saharan Africa: Myth Or Reality?, Janica Adams, Mary J. Mackenzie, Adeladza Kofi Amegah, Alex Ezeh, Muktar A. Gadanya, Akinyinka Omigbodun, Ahmed M. Sarki, Paul Thistle, Abdhalah K. Ziraba, Saverio Stranges, Michael Silverman
Global Health Equity Publications
Key Messages
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Evidence suggests the demographic age structure of sub-Saharan Africa is the leading factor of the low morbidity and mortality of COVID-19 compared to other regions of the world.
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Widespread social mitigation strategies, such as lockdowns, have resulted in severe economic and societal consequences in terms of food security, adolescent pregnancy, gender-based violence, and disruptions in treating other diseases.
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It is imperative to weigh the risks and benefits of social mitigation strategies for future waves.
Continuing To Enhance The Quality Of Case Study Methodology In Health Services Research., Shannon L Sibbald, Stefan Paciocco, Meghan Fournie, Rachelle Van Asseldonk, Tiffany Scurr
Continuing To Enhance The Quality Of Case Study Methodology In Health Services Research., Shannon L Sibbald, Stefan Paciocco, Meghan Fournie, Rachelle Van Asseldonk, Tiffany Scurr
Health Studies Publications
Case study methodology has grown in popularity within Health Services Research (HSR). However, its use and merit as a methodology are frequently criticized due to its flexible approach and inconsistent application. Nevertheless, case study methodology is well suited to HSR because it can track and examine complex relationships, contexts, and systems as they evolve. Applied appropriately, it can help generate information on how multiple forms of knowledge come together to inform decision-making within healthcare contexts. In this article, we aim to demystify case study methodology by outlining its philosophical underpinnings and three foundational approaches. We provide literature-based guidance to decision-makers, …
Sustained Neural Activity Correlates With Rapid Perceptual Learning Of Auditory Patterns, Björn Herrmann, Kurdo Araz, Ingrid S. Johnsrude
Sustained Neural Activity Correlates With Rapid Perceptual Learning Of Auditory Patterns, Björn Herrmann, Kurdo Araz, Ingrid S. Johnsrude
Brain and Mind Institute Researchers' Publications
Repeating structures forming regular patterns are common in sounds. Learning such patterns may enable accurate perceptual organization. In five experiments, we investigated the behavioral and neural signatures of rapid perceptual learning of regular sound patterns. We show that recurring (compared to novel) patterns are detected more quickly and increase sensitivity to pattern deviations and to the temporal order of pattern onset relative to a visual stimulus. Sustained neural activity reflected perceptual learning in two ways. Firstly, sustained activity increased earlier for recurring than novel patterns when participants attended to sounds, but not when they ignored them; this earlier increase mirrored …
The Effect Of First-Time 4-Wheeled Walker Use On The Gait Of Younger And Older Adults, Humberto A. Omana, Edward Madou, Alison Divine, Walter Wittich, Keith D. Hill, Andrew M. Johnson, Jeffrey D. Holmes, Susan W. Hunter
The Effect Of First-Time 4-Wheeled Walker Use On The Gait Of Younger And Older Adults, Humberto A. Omana, Edward Madou, Alison Divine, Walter Wittich, Keith D. Hill, Andrew M. Johnson, Jeffrey D. Holmes, Susan W. Hunter
Physical Therapy Publications
INTRODUCTION: The 4-wheeled walker is intended to enhance balance and gait for older adults. Yet, some research suggests that walking aids increase falls risk. An understanding of the influence of age with walker use on gait performance is required.
OBJECTIVE: To examine the effect of initial 4-wheeled walker use on spatiotemporal gait parameters between younger and older adults.
DESIGN: Cross-sectional, repeated-measures.
SETTING: Community-dwelling.
PARTICIPANTS: Twenty-five younger (age: 26.5 ± 4.1 years) and 24 older (age: 68.5 ± 10.5 years) adults participated. Younger adults were aged 18 to 35 years, whereas older adults were 50 years or older. Included were people …
Environmental Scan Of Primary Care Needs In The Last Decade (2010-2020), Ravninder Bahniwal
Environmental Scan Of Primary Care Needs In The Last Decade (2010-2020), Ravninder Bahniwal
Family Medicine Publications
No abstract provided.
Nnresting State Fmri Scanner Instabilities Revealed By Longitud Inal Phantom Scans In A Multi-Center Study, Aras Kayvanrad, Stephen R. Arnott, Nathan Churchill, Stefanie Hassel, Aditi Chemparathy, Fan Dong, Mojdeh Zamyadi, Tom Gee, Robert Bartha, Sandra E. Black, Jane M. Lawrence-Dewar, Christopher J.M. Scott, Sean Symons, Andrew D. Davis, Geoffrey B. Hall, Jacqueline Harris, Nancy J. Lobaugh, Glenda Macqueen, Cindy Woo, Stephen Strother
Nnresting State Fmri Scanner Instabilities Revealed By Longitud Inal Phantom Scans In A Multi-Center Study, Aras Kayvanrad, Stephen R. Arnott, Nathan Churchill, Stefanie Hassel, Aditi Chemparathy, Fan Dong, Mojdeh Zamyadi, Tom Gee, Robert Bartha, Sandra E. Black, Jane M. Lawrence-Dewar, Christopher J.M. Scott, Sean Symons, Andrew D. Davis, Geoffrey B. Hall, Jacqueline Harris, Nancy J. Lobaugh, Glenda Macqueen, Cindy Woo, Stephen Strother
Medical Biophysics Publications
Quality assurance (QA) is crucial in longitudinal and/or multi-site studies, which involve the collection of data from a group of subjects over time and/or at different locations. It is important to regularly monitor the performance of the scanners over time and at different locations to detect and control for intrinsic differences (e.g., due to manufacturers) and changes in scanner performance (e.g., due to gradual component aging, software and/or hardware upgrades, etc.). As part of the Ontario Neurodegenerative Disease Research Initiative (ONDRI) and the Canadian Biomarker Integration Network in Depression (CAN-BIND), QA phantom scans were conducted approximately monthly for three to …
Speech-Evoked Brain Activity Is More Robust To Competing Speech When It Is Spoken By Someone Familiar, Emma Holmes, Ingrid S. Johnsrude
Speech-Evoked Brain Activity Is More Robust To Competing Speech When It Is Spoken By Someone Familiar, Emma Holmes, Ingrid S. Johnsrude
Communication Sciences and Disorders Publications
When speech is masked by competing sound, people are better at understanding what is said if the talker is familiar compared to unfamiliar. The benefit is robust, but how does processing of familiar voices facilitate intelligibility? We combined high-resolution fMRI with representational similarity analysis to quantify the difference in distributed activity between clear and masked speech. We demonstrate that brain representations of spoken sentences are less affected by a competing sentence when they are spoken by a friend or partner than by someone unfamiliar—effectively, showing a cortical signal-to-noise ratio (SNR) enhancement for familiar voices. This effect correlated with the familiar-voice …
Group A Streptococcal Septic Hip Arthritis In A Child With Spastic Triplegic Cerebral Palsy, Supriya Singh, Jacob Davidson, Timothy Carey, Michelle Barton Forbes, Megan Cashin
Group A Streptococcal Septic Hip Arthritis In A Child With Spastic Triplegic Cerebral Palsy, Supriya Singh, Jacob Davidson, Timothy Carey, Michelle Barton Forbes, Megan Cashin
Paediatrics Publications
Reports of septic hip arthritis in children with cerebral palsy are exceedingly rare. This case report describes a 10-year-old boy with spastic triplegic cerebral palsy (Gross Motor Functional Classification System), who presented with fever and irritability. This case highlights the difficulties in diagnosing septic joint arthritis in patients with cerebral palsy who are nonverbal and have limited mobility. A high index of suspicion is necessary in this population when presented with fever and new limitations in mobility.
Evaluation Of Cyclic Fatigue And Bending Resistance Of Coronal Preflaring Niti File Manufactured With Different Heat Treatments, Soram Oh, Su Young Moon, Antonis Chaniotis, Eugenio Pedullá, Adel Saeed Al-Ghamdi, Fawzi Ali Al-Ghamdi, Ayman Omar Mandorah, Hiran Perinpanayagam, Kee Yeon Kum, Ove A. Peters, Seok Woo Chang
Evaluation Of Cyclic Fatigue And Bending Resistance Of Coronal Preflaring Niti File Manufactured With Different Heat Treatments, Soram Oh, Su Young Moon, Antonis Chaniotis, Eugenio Pedullá, Adel Saeed Al-Ghamdi, Fawzi Ali Al-Ghamdi, Ayman Omar Mandorah, Hiran Perinpanayagam, Kee Yeon Kum, Ove A. Peters, Seok Woo Chang
Dentistry Publications
Coronal preflaring NiTi files should possess proper hardness, resistance to fracture and flexibility. This study compared the bending resistance and cyclic fatigue resistance of three orifice preflaring NiTi files. HyFlex EDM Orifice opener (#25/12), HyFlex CM (#25/08) and One Flare (#25/09) were tested (n = 46/instrument). Bending resistance was assessed with the stress when perpendicular displacement was applied to a 3 mm point from the file tip, and was performed at either room temperature (RT, n = 10) or body temperature (BT, n = 10). Cyclic fatigue resistance was tested with an artificial ceramic root canal at RT (n = …
The Role Of Phonological And Semantic Representations In Verbal Short-Term Memory And Delayed Retention, Lisa Archibald
The Role Of Phonological And Semantic Representations In Verbal Short-Term Memory And Delayed Retention, Lisa Archibald
Data and Test Instruments
No abstract provided.
Primary Care Informatics Response To Covid-19 Pandemic: Adaptation, Progress, And Lessons From Four Countries With High Ict Development, Siaw Teng Liaw, Craig Kuziemsky, Richard Schreiber, Jitendra Jonnagaddala, Harshana Liyanage, Aliasgar Chittalia, Ravninder Bahniwal, Jennifer W. He, Bridget L. Ryan, Daniel J. Lizotte, Jacqueline K. Kueper, Amanda L. Terry, Simon De Lusignan
Primary Care Informatics Response To Covid-19 Pandemic: Adaptation, Progress, And Lessons From Four Countries With High Ict Development, Siaw Teng Liaw, Craig Kuziemsky, Richard Schreiber, Jitendra Jonnagaddala, Harshana Liyanage, Aliasgar Chittalia, Ravninder Bahniwal, Jennifer W. He, Bridget L. Ryan, Daniel J. Lizotte, Jacqueline K. Kueper, Amanda L. Terry, Simon De Lusignan
Family Medicine Publications
OBJECTIVE: Internationally, primary care practice had to transform in response to the COVID pandemic. Informatics issues included access, privacy, and security, as well as patient concerns of equity, safety, quality, and trust. This paper describes progress and lessons learned. METHODS: IMIA Primary Care Informatics Working Group members from Australia, Canada, United Kingdom and United States developed a standardised template for collection of information. The template guided a rapid literature review. We also included experiential learning from primary care and public health perspectives. RESULTS: All countries responded rapidly. Common themes included rapid reductions then transformation to virtual visits, pausing of non-COVID …