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  • Open Access French
    Authors: 
    Mercier, Martin;
    Publisher: Université de Montréal
    Country: Canada

    Ce mémoire explore la dynamique mémorielle au sein de l’écriture. Dans la partie création, le personnage de Sam erre à l’intérieur de ses souvenirs à la recherche de sa sœur Lidie. Il s’agit d’une tentative vaine, toujours à recommencer puisque la mémoire, liée à la conscience, est sans cesse gauchie et subjective, incapable de redonner un passé objectif. La figure de Lidie se trouve ainsi être le point central inatteignable d’une circonvolution, le mouvement circulaire révélant la présence de la mémoire dans le corps du texte. La partie essai aborde la question de la liaison entre la mémoire et l’écriture dans Le Palace de Claude Simon. Reprenant l’idée du triple présent de Saint Augustin, le passé n’est alors possible que dans un présent du passé. Cette dynamique crée un mouvement circulaire ; le personnage parcourt ses souvenirs, mais il ne peut les investir que par la lorgnette d’un présent. Cela se traduit par un texte sans début ni fin, révolutionnaire, où le souvenir, plutôt qu’un retour dans le temps, fait avancer le texte et devient le temps présent de l’écriture. This master explores the dynamism of the memory within writing. In the creation part, the character of Sam wanders in his memories, searching for his sister Lidie. It is a vain attempt, always to begin again since the memory, related to the consciousness, is unceasingly subjective and distorted, unable to give back an objective past. The figure of Lidie find to be the unattainable central point of a convolution, the cercle trajectory revealing the presence of the memory in the body of the text. The essay part discusses the question of the bond between the memory and the writing in Le Palace of Claude Simon. Taking up the idea of the triple present of St. Augustine, the past is then possible only in a present of the past, and this dynamism creates a circular motion while the character goes through his memories that he can only invest by the lens of a present. This reveals a text without any beginning or end, revolutionary, where the memory, rather than a return in time, is moving forward the text and becomes the present time of the writing. Mémoire en recherche-création.

  • Authors: 
    Timothy A. Worden; Lori Ann Vallis;
    Publisher: Informa UK Limited
    Project: NSERC

    ABSTRACTTraining protocols designed to improve dual-task performance of an obstacle crossing and auditory Stroop task (OBS+Stroop) were tested. In Experiment 1, following baseline collection of OBS+Stroop trials, proximally related walking training was performed, and participants were then retested on the OBS+Stroop test. After training, participants adopted a more cautious obstacle crossing strategy, indicating a potentially safer navigation strategy. Transfer effects from distally related training were then examined (Experiment 2); a computer game training paradigm was examined using the same testing protocol as Experiment 1. Computer training demonstrated improved dual-task performance on some measures, but did not induce a more cautious stepping strategy. Results indicate that dual-task training needs to be similar to targeted tasks to yield reliable, positive training outcomes.

  • Open Access
    Authors: 
    Michael Sgro; Douglas M Campbell; Kaitlyn Luisa Mellor; Kathleen Hollamby; Jaya Bodani; Prakesh S. Shah;
    Publisher: Oxford University Press (OUP)

    AbstractObjectiveTo evaluate trends in organisms causing early-onset neonatal sepsis (EONS). Congruent with recent reports, we hypothesized there would be an increase in EONS caused by Escherichia coli.Study DesignNational data on infants admitted to neonatal intensive care units from 2009 to 2014 were compared to previously reported data from 2003 to 2008. We report 430 cases of EONS from 2009 to 2014. Bivariate analyses were used to analyze the distribution of causative organisms over time and differences by gestational age. Linear regression was used to estimate trends in causative organisms.ResultsSince 2003, there has been a trend of increasing numbers of cases caused by E coli (P<0.01). The predominant organism was E coli in preterm infants and Group B Streptococcus in term infants.ConclusionsWith the majority of EONS cases now caused by E coli, our findings emphasize the importance of continued surveillance of causative organism patterns and developing approaches to reduce cases caused by E coli.

  • Open Access
    Authors: 
    M. Gabrielle Pagé; E. Manolo Romero Escobar; Mark A. Ware; Manon Choinière;
    Publisher: Informa UK Limited
    Project: CIHR

    ABSTRACT Background: Though multidisciplinary pain treatment (MPT) is considered the gold standard for managing chronic pain, it is unclear which patients benefit most from this high-cost treatment approach. Aims: The goals were to identify subgroups of patients sharing similar pain severity trajectories over time and predictors of MPT responsiveness. Methods: Participants were 1894 patients (mean age = 53.18 years [SD = 14.0]; female = 60.3%) enrolled in the Quebec Pain Registry with moderate to severe baseline pain severity. Patients completed validated questionnaires on pain and related constructs before initiating treatment and 6, 12, and 24 months later. Results: Trajectory analyses of pain severity (intensity and interference) showed that a three-class model best fit the data. Two of the trajectories, which included 24.5% of patients, showed significant improvement in pain severity levels over time (improvers). Compared to patients in the nonimproving trajectory (non-improvers), improvers were younger and more likely to suffer from neuropathic pain and had pain of shorter duration, lower worst pain intensity, lower sleep disturbances and depression scores at baseline, a lower tendency to catastrophize, and better physical health–related quality of life (QOL). This predictive model had a specificity of 96.2% and a sensitivity of 23.6%. Conclusions: Only a minority of patients exhibited an improvement in their pain severity with MPT. Several patients’ characteristics were significantly associated with pain trajectory membership. Early identification of nonimprovers, through examination of baseline characteristics and rates of change in pain scores, can provide valuable information about prognosis and open the doors for evaluation of different cost-effective treatment approaches. Abbreviations: CP = chronic pain; MPT = multidisciplinary pain treatment; QPR = Quebec Pain Registry; QOL = quality of life.

  • Publication . Other literature type . Article . 2021
    Open Access
    Authors: 
    Errol Colak; Felipe Kitamura; Stephen B Hobbs; Carol C Wu; Matthew P. Lungren; Luciano M. Prevedello; Jayashree Kalpathy-Cramer; Robyn L Ball; George Shih; Anouk Stein; +20 more
    Publisher: Radiological Society of North America (RSNA)

    This dataset is composed of CT pulmonary angiograms and annotations related to pulmonary embolism. It is available at https://www.rsna.org/education/ai-resources-and-training/ai-image-challenge/rsn...

  • Open Access
    Authors: 
    Xue Xu; Yuan Zhou; Xiaowen Feng; Xiong Li; Mohammad Asad; Derek Li; Bo Liao; Jianqiang Li; Qinghua Cui; Edwin Wang;
    Publisher: American Association for the Advancement of Science (AAAS)
    Project: NSERC

    There is an ongoing debate on the importance of genetic factors in cancer development, where gene-centered cancer predisposition seems to show that only 5 to 10% of the cancer cases are inheritable. By conducting a systematic analysis of germline genomes of 9712 cancer patients representing 22 common cancer types along with 16,670 noncancer individuals, we identified seven cancer-associated germline genomic patterns (CGGPs), which summarized trinucleotide mutational spectra of germline genomes. A few CGGPs were consistently enriched in the germline genomes of patients whose tumors had smoking signatures or correlated with oncogenesis- and genome instability–related mutations. Furthermore, subgroups defined by the CGGPs were significantly associated with distinct oncogenic pathways, tumor histological subtypes, and prognosis in 13 common cancer types, suggesting that germline genomic patterns enable to inform treatment and clinical outcomes. These results provided evidence that cancer risk and clinical outcomes could be encoded in germline genomes. Germline variants when organized as genomic patterns are associated with cancer risk, oncogenic pathways, and clinical outcomes.

  • Closed Access
    Authors: 
    Kelli E. King; James J. McCormick; Melissa D. Côté; Morgan K. McManus; Serena Topshee; Glen P. Kenny;
    Publisher: Wiley
  • Publication . Conference object . 2021
    Authors: 
    Tuofu Li; Javin Jia Liu; Yintao Tai; Yuxuan Tian;
    Publisher: SPIE

    Brain tumors are a hazardous type of tumor, and they build pressure inside the skull when they grow, which can potentially cause brain damage or even death. Attention mechanisms are widely adopted in state-of-the-art deep learning architectures for computer vision and neural translation tasks since they enhance networks' ability to capture spatial and channel-wise relationships. We offer an attention-based image segmentation model that outlines the brain tumors in Magnetic Resonance Imaging (MRI) scans if present. In the paper, we mainly focus on integrating Squeeze-and-Excitation Block and CBAM into the commonly used segmentation model, U-Net, to resolve the problem of concatenating unnecessary information into the decoder blocks and attempt to locate the tumor boundaries. Our research clearly shows the application of the attention mechanism in U-Net, incorporates the Squeeze-and-Excitation with CBAM, and improves the performance in the brain tumor segmentation task. The model is delivered on an app with additional text to speech and chatbot features provided.

  • Publication . Part of book or chapter of book . 2018
    Closed Access
    Authors: 
    Stephan Ramon Garcia; Javad Mashreghi; William T. Ross;
    Publisher: Springer International Publishing

    Although finite Blaschke products are a remarkable and exclusive class of functions, they appear in many important approximation problems.

  • Closed Access
    Authors: 
    Stephanie Crites; Venus Joumaa; Jaqueline Lourdes Rios; Andrew Sawatsky; David A. Hart; Raylene A. Reimer; Walter Herzog;
    Publisher: Elsevier BV

    Abstract The purpose of this study was to investigate the alterations with obesity, and the effects of moderate aerobic exercise or prebiotic dietary-fibre supplementation on the mechanical and biochemical properties of the tail tendon in a rat model of high-fat/high-sucrose (HFS) diet-induced obesity. Thirty-two male Sprague-Dawley rats were randomized to chow (n = 8) or HFS (n = 24) diets. After 12-weeks, the HFS fed rats were further randomized into sedentary (HFS sedentary, n = 8), exercise (HFS + E, n = 8) or prebiotic fibre supplementation (HFS + F, n = 8) groups. After another 12-weeks, rats were sacrificed, and one tail tendon was isolated and tested. Stress-relaxation and stretch-to-failure tests were performed to determine mechanical properties (peak, steady-state, yield and failure stresses, Young’s modulus, and yield and failure strains) of the tendons. The hydroxyproline content was also analyzed. The HFS sedentary and HFS + F groups had higher final body masses and fat percentages compared to the chow and HFS + E groups. Yield strain was reduced in the HFS sedentary rats compared to the chow rats. Peak and steady-state stresses, failure strain, Young’s modulus, and hydroxyproline content were not different across groups. Although the HFS + E group showed higher failure stress, yield stress, and yield strain compared to the HFS sedentary group, HFS + F animals did not produce differences in the properties of the tail tendon compared to the HFS sedentary group. These results indicate that exposure to a HFS diet led to a reduction in the yield strain of the tail tendon and aerobic exercise, but not fibre supplementation, attenuated these diet-related alterations to tendon integrity.

search
Include:
The following results are related to Canada. Are you interested to view more results? Visit OpenAIRE - Explore.
676,747 Research products, page 1 of 67,675
  • Open Access French
    Authors: 
    Mercier, Martin;
    Publisher: Université de Montréal
    Country: Canada

    Ce mémoire explore la dynamique mémorielle au sein de l’écriture. Dans la partie création, le personnage de Sam erre à l’intérieur de ses souvenirs à la recherche de sa sœur Lidie. Il s’agit d’une tentative vaine, toujours à recommencer puisque la mémoire, liée à la conscience, est sans cesse gauchie et subjective, incapable de redonner un passé objectif. La figure de Lidie se trouve ainsi être le point central inatteignable d’une circonvolution, le mouvement circulaire révélant la présence de la mémoire dans le corps du texte. La partie essai aborde la question de la liaison entre la mémoire et l’écriture dans Le Palace de Claude Simon. Reprenant l’idée du triple présent de Saint Augustin, le passé n’est alors possible que dans un présent du passé. Cette dynamique crée un mouvement circulaire ; le personnage parcourt ses souvenirs, mais il ne peut les investir que par la lorgnette d’un présent. Cela se traduit par un texte sans début ni fin, révolutionnaire, où le souvenir, plutôt qu’un retour dans le temps, fait avancer le texte et devient le temps présent de l’écriture. This master explores the dynamism of the memory within writing. In the creation part, the character of Sam wanders in his memories, searching for his sister Lidie. It is a vain attempt, always to begin again since the memory, related to the consciousness, is unceasingly subjective and distorted, unable to give back an objective past. The figure of Lidie find to be the unattainable central point of a convolution, the cercle trajectory revealing the presence of the memory in the body of the text. The essay part discusses the question of the bond between the memory and the writing in Le Palace of Claude Simon. Taking up the idea of the triple present of St. Augustine, the past is then possible only in a present of the past, and this dynamism creates a circular motion while the character goes through his memories that he can only invest by the lens of a present. This reveals a text without any beginning or end, revolutionary, where the memory, rather than a return in time, is moving forward the text and becomes the present time of the writing. Mémoire en recherche-création.

  • Authors: 
    Timothy A. Worden; Lori Ann Vallis;
    Publisher: Informa UK Limited
    Project: NSERC

    ABSTRACTTraining protocols designed to improve dual-task performance of an obstacle crossing and auditory Stroop task (OBS+Stroop) were tested. In Experiment 1, following baseline collection of OBS+Stroop trials, proximally related walking training was performed, and participants were then retested on the OBS+Stroop test. After training, participants adopted a more cautious obstacle crossing strategy, indicating a potentially safer navigation strategy. Transfer effects from distally related training were then examined (Experiment 2); a computer game training paradigm was examined using the same testing protocol as Experiment 1. Computer training demonstrated improved dual-task performance on some measures, but did not induce a more cautious stepping strategy. Results indicate that dual-task training needs to be similar to targeted tasks to yield reliable, positive training outcomes.

  • Open Access
    Authors: 
    Michael Sgro; Douglas M Campbell; Kaitlyn Luisa Mellor; Kathleen Hollamby; Jaya Bodani; Prakesh S. Shah;
    Publisher: Oxford University Press (OUP)

    AbstractObjectiveTo evaluate trends in organisms causing early-onset neonatal sepsis (EONS). Congruent with recent reports, we hypothesized there would be an increase in EONS caused by Escherichia coli.Study DesignNational data on infants admitted to neonatal intensive care units from 2009 to 2014 were compared to previously reported data from 2003 to 2008. We report 430 cases of EONS from 2009 to 2014. Bivariate analyses were used to analyze the distribution of causative organisms over time and differences by gestational age. Linear regression was used to estimate trends in causative organisms.ResultsSince 2003, there has been a trend of increasing numbers of cases caused by E coli (P<0.01). The predominant organism was E coli in preterm infants and Group B Streptococcus in term infants.ConclusionsWith the majority of EONS cases now caused by E coli, our findings emphasize the importance of continued surveillance of causative organism patterns and developing approaches to reduce cases caused by E coli.

  • Open Access
    Authors: 
    M. Gabrielle Pagé; E. Manolo Romero Escobar; Mark A. Ware; Manon Choinière;
    Publisher: Informa UK Limited
    Project: CIHR

    ABSTRACT Background: Though multidisciplinary pain treatment (MPT) is considered the gold standard for managing chronic pain, it is unclear which patients benefit most from this high-cost treatment approach. Aims: The goals were to identify subgroups of patients sharing similar pain severity trajectories over time and predictors of MPT responsiveness. Methods: Participants were 1894 patients (mean age = 53.18 years [SD = 14.0]; female = 60.3%) enrolled in the Quebec Pain Registry with moderate to severe baseline pain severity. Patients completed validated questionnaires on pain and related constructs before initiating treatment and 6, 12, and 24 months later. Results: Trajectory analyses of pain severity (intensity and interference) showed that a three-class model best fit the data. Two of the trajectories, which included 24.5% of patients, showed significant improvement in pain severity levels over time (improvers). Compared to patients in the nonimproving trajectory (non-improvers), improvers were younger and more likely to suffer from neuropathic pain and had pain of shorter duration, lower worst pain intensity, lower sleep disturbances and depression scores at baseline, a lower tendency to catastrophize, and better physical health–related quality of life (QOL). This predictive model had a specificity of 96.2% and a sensitivity of 23.6%. Conclusions: Only a minority of patients exhibited an improvement in their pain severity with MPT. Several patients’ characteristics were significantly associated with pain trajectory membership. Early identification of nonimprovers, through examination of baseline characteristics and rates of change in pain scores, can provide valuable information about prognosis and open the doors for evaluation of different cost-effective treatment approaches. Abbreviations: CP = chronic pain; MPT = multidisciplinary pain treatment; QPR = Quebec Pain Registry; QOL = quality of life.

  • Publication . Other literature type . Article . 2021
    Open Access
    Authors: 
    Errol Colak; Felipe Kitamura; Stephen B Hobbs; Carol C Wu; Matthew P. Lungren; Luciano M. Prevedello; Jayashree Kalpathy-Cramer; Robyn L Ball; George Shih; Anouk Stein; +20 more
    Publisher: Radiological Society of North America (RSNA)

    This dataset is composed of CT pulmonary angiograms and annotations related to pulmonary embolism. It is available at https://www.rsna.org/education/ai-resources-and-training/ai-image-challenge/rsn...

  • Open Access
    Authors: 
    Xue Xu; Yuan Zhou; Xiaowen Feng; Xiong Li; Mohammad Asad; Derek Li; Bo Liao; Jianqiang Li; Qinghua Cui; Edwin Wang;
    Publisher: American Association for the Advancement of Science (AAAS)
    Project: NSERC

    There is an ongoing debate on the importance of genetic factors in cancer development, where gene-centered cancer predisposition seems to show that only 5 to 10% of the cancer cases are inheritable. By conducting a systematic analysis of germline genomes of 9712 cancer patients representing 22 common cancer types along with 16,670 noncancer individuals, we identified seven cancer-associated germline genomic patterns (CGGPs), which summarized trinucleotide mutational spectra of germline genomes. A few CGGPs were consistently enriched in the germline genomes of patients whose tumors had smoking signatures or correlated with oncogenesis- and genome instability–related mutations. Furthermore, subgroups defined by the CGGPs were significantly associated with distinct oncogenic pathways, tumor histological subtypes, and prognosis in 13 common cancer types, suggesting that germline genomic patterns enable to inform treatment and clinical outcomes. These results provided evidence that cancer risk and clinical outcomes could be encoded in germline genomes. Germline variants when organized as genomic patterns are associated with cancer risk, oncogenic pathways, and clinical outcomes.

  • Closed Access
    Authors: 
    Kelli E. King; James J. McCormick; Melissa D. Côté; Morgan K. McManus; Serena Topshee; Glen P. Kenny;
    Publisher: Wiley
  • Publication . Conference object . 2021
    Authors: 
    Tuofu Li; Javin Jia Liu; Yintao Tai; Yuxuan Tian;
    Publisher: SPIE

    Brain tumors are a hazardous type of tumor, and they build pressure inside the skull when they grow, which can potentially cause brain damage or even death. Attention mechanisms are widely adopted in state-of-the-art deep learning architectures for computer vision and neural translation tasks since they enhance networks' ability to capture spatial and channel-wise relationships. We offer an attention-based image segmentation model that outlines the brain tumors in Magnetic Resonance Imaging (MRI) scans if present. In the paper, we mainly focus on integrating Squeeze-and-Excitation Block and CBAM into the commonly used segmentation model, U-Net, to resolve the problem of concatenating unnecessary information into the decoder blocks and attempt to locate the tumor boundaries. Our research clearly shows the application of the attention mechanism in U-Net, incorporates the Squeeze-and-Excitation with CBAM, and improves the performance in the brain tumor segmentation task. The model is delivered on an app with additional text to speech and chatbot features provided.

  • Publication . Part of book or chapter of book . 2018
    Closed Access
    Authors: 
    Stephan Ramon Garcia; Javad Mashreghi; William T. Ross;
    Publisher: Springer International Publishing

    Although finite Blaschke products are a remarkable and exclusive class of functions, they appear in many important approximation problems.

  • Closed Access
    Authors: 
    Stephanie Crites; Venus Joumaa; Jaqueline Lourdes Rios; Andrew Sawatsky; David A. Hart; Raylene A. Reimer; Walter Herzog;
    Publisher: Elsevier BV

    Abstract The purpose of this study was to investigate the alterations with obesity, and the effects of moderate aerobic exercise or prebiotic dietary-fibre supplementation on the mechanical and biochemical properties of the tail tendon in a rat model of high-fat/high-sucrose (HFS) diet-induced obesity. Thirty-two male Sprague-Dawley rats were randomized to chow (n = 8) or HFS (n = 24) diets. After 12-weeks, the HFS fed rats were further randomized into sedentary (HFS sedentary, n = 8), exercise (HFS + E, n = 8) or prebiotic fibre supplementation (HFS + F, n = 8) groups. After another 12-weeks, rats were sacrificed, and one tail tendon was isolated and tested. Stress-relaxation and stretch-to-failure tests were performed to determine mechanical properties (peak, steady-state, yield and failure stresses, Young’s modulus, and yield and failure strains) of the tendons. The hydroxyproline content was also analyzed. The HFS sedentary and HFS + F groups had higher final body masses and fat percentages compared to the chow and HFS + E groups. Yield strain was reduced in the HFS sedentary rats compared to the chow rats. Peak and steady-state stresses, failure strain, Young’s modulus, and hydroxyproline content were not different across groups. Although the HFS + E group showed higher failure stress, yield stress, and yield strain compared to the HFS sedentary group, HFS + F animals did not produce differences in the properties of the tail tendon compared to the HFS sedentary group. These results indicate that exposure to a HFS diet led to a reduction in the yield strain of the tail tendon and aerobic exercise, but not fibre supplementation, attenuated these diet-related alterations to tendon integrity.