Fano Resonances in Mid-Infrared Spectra of Single-Walled Carbon Nanotubes

This work revisits the physics giving rise to the carbon nanotubes phonon bands in the mid- infrared. Our measurements of doped and undoped samples of single-walled carbon nanotubes in Fourier transform infrared spectroscopy show that the phonon bands exhibit an asymmetric lineshape and that their effective cross-section is enhanced upon doping. We relate these observations to electron-phonon coupling or, more specifically, to a Fano resonance phenomenon. We note that only the dopant-induced intraband continuum couples to the phonon modes and that defects induced in the sidewall increase the resonance probabilities.Comment: 5 pages, 4 figures and 1 Supplementary Information File (in pdf

Un portrait de la santé psychologique des enseignants du collégial durant la pandémie de COVID-19

Dans le contexte particulier de la pandémie de COVID-19 pour les enseignants, il est essentiel de s’intéresser à la santé psychologique de ces derniers, compte tenu de tous les bouleversements qu’ils ont vécus. La recherche dont traite cet article vise à comprendre les états affectifs et émotionnels témoignant de la santé psychologique des enseignants du collégial à travers leurs tâches durant la pandémie. Menée à l’automne 2020, la recherche a poursuivi deux objectifs spécifiques : 1) tracer un portrait de la santé psychologique des enseignants, en tenant compte des manifestations positives de bien-être et négatives de détresse psychologique liées au contexte de travail et 2) décrire les sentiments qu’éprouvent les enseignants, selon leur genre et leurs habiletés avec la technologie. De type exploratoire, la recherche a utilisé des analyses quantitatives et qualitatives pour dresser un portrait détaillé du sujet étudié. Au total, 148 enseignants québécois francophones provenant du milieu collégial ont répondu, sur une base volontaire, à un questionnaire en ligne autoadministré. Les résultats quantitatifs mettent en évidence la prédominance des sentiments positifs par rapport aux sentiments négatifs vécus par les enseignants, ainsi que les différences liées à leur état de santé psychologique selon leur genre et leur habileté avec la technologie. Les résultats qualitatifs, quant à eux, permettent d’approfondir les réflexions des enseignants sur certains aspects de leur santé psychologique. Finalement, l’étude fournit des pistes d’action adaptées à certains éléments vécus par les enseignants afin de favoriser leur santé psychologique.In the unique context of the COVID-19 pandemic for teachers, it is essential to address their psychological health because of all the upheaval they experienced. The research discussed in this article aims to understand the affective and emotional feelings that make up the psychological health of college teachers through their teaching tasks during the pandemic. The research was conducted in the fall of 2020 in order to pursue two specific objectives : 1) to draw a portrait of teachers’ psychological health, taking into account positive manifestations of well-being and negative manifestations of psychological distress related to the work context and 2) to describe the feelings that teachers experience, taking into account their gender and their skills with technology. The research was exploratory in nature and used both quantitative and qualitative analyses to provide a detailed picture of the subject matter. A total of 148 French-speaking Quebec college teachers voluntarily responded to a self-administered online questionnaire. The quantitative results highlight the preponderance of positive versus negative feelings experienced by the teachers, as well as differences in their psychological health according to their gender and their ability with technology. The qualitative results, for their part, allow us to deepen the teachers’ reflections on certain aspects of their psychological health. Finally, the study provides avenues for action adapted to certain aspects experienced by the teachers in order to promote their psychological health

Développement d'une échelle interdisciplinaire bilingue évaluant l'auto-efficacité à participer à l'aide médicale à mourir

Medical Assistance in Dying (MAiD) is a complex process involving the person seeking care and their relatives. MAiD involves physical, psychosocial and spiritual needs, and consequently the involvement of an interdisciplinary team is beneficial. Therefore, updating the knowledge and skills of healthcare and social services professionals is critical. An interdisciplinary team from Laval University (Quebec, Canada) has developed a continuous training program for all health care and social services professionals who could be involved in the care of persons who request MAiD and their loved ones. It is crucial to assess whether the objectives of the continuous training program are being met, especially since this new training addresses several complex issues (legal, ethical, and clinical). Bandura's self-efficacy theory has been widely used to develop scales for assessing the impact of training programs and identifying knowledge gaps. Bandura's theory states that feeling secure in one's self-efficacy leads to self-determined motivation. Although there are various scales intended to measure self-efficacy in palliative care, none include self-efficacy for participating in the process surrounding MAiD. As a result, we aim to create a bilingual (English-French) interdisciplinary scale to assess self-efficacy for participating in the process surrounding MAiD. The scale will allow decision-makers and researchers to identify current knowledge gaps. It will also be useful for assessing the impact of current and future training programs addressing this end-of-life practice. In this work in progress, we briefly introduce the training program and the future steps in the development and validation of the scale.L'aide médicale à mourir (AMM) est un processus complexe impliquant la personne qui demande le soin et ses proches. L'AMM implique des besoins physiques, psychosociaux et spirituels. Par conséquent, l'implication d'une équipe interdisciplinaire est bénéfique et la mise à niveau des connaissances et des compétences des professionnel.es est essentielle. Une équipe interdisciplinaire de l'Université Laval (Québec, Canada) a développé un programme de formation continue destiné aux professionnelles de la santé et des services sociaux susceptible d'être impliqué es dans ls soins et services des personnes qui demandent l’AMM et de leurs proches. Il est crucial d'évaluer si les objectifs du programme de formation continue sont atteints, d'autant plus que cette nouvelle formation aborde plusieurs questions complexes (juridiques, éthiques et cliniques). La théorie du sentiment d'auto efficacité de Bandura a été largement utilisée pour développer des échelles permettant d'évaluer l'impact des programmes de formation et d'identifier les lacunes en matière de connaissances. Cette théorie stipule que le fait de se sentir sûre de son efficacité personnelle conduit à une motivation intrinsèque à accomplir le comportement visé. Bien qu'il existe plusieurs échelles destinées à mesurer l'auto-efficacité dans le domaine des soins palliatifs, aucune n'inclut l'auto-efficacité pour la participation au processus entourant l’AMM. Par conséquent, nous développons une échelle interdisciplinaire bilingue (anglais-français) pour évaluer l'auto-efficacité à participer au processus entourant l’AMM. L'échelle permettra aux décideuses, décideurs et aux chercheuses et chercheurs d'identifier les lacunes actuelles en matière de connaissances. Elle sera également utile pour évaluer l'impact des programmes de formation actuels et futurs portant sur cette pratique de fin de vie. Dans cet article, nous présentons brièvement le programme de formation et les étapes futures du développement et de la validation de l'échelle

Responsible Conduct of Research in Research-Creation: Moving into Uncharted Terrain

Responsible conduct of research (RCR) is ubiquitous, and present in most areas of research. One area that has received little attention is Research-Creation (RC): • an emergent eld at the interface of academic research and creative activities • in Quebec, Canada, RC is de ned as “research activities or approaches that foster the creation or interpretation/ performance of literary or artistic works of all types” Researcher-Creators – who are at the same time researchers and practising artists, musicians, or designers – may be faced with very di erent issues or challenges from colleagues in the rest of academia. • How do researcher-creators reconcile their dual obligations to creation and to research? • Are the usual research ethics guidelines (e.g., TCPS2, ICH relevant and how do they apply? • How do the creative/artistic dimensions of research a ect evaluations by grant committees and REBs? To better understand how RCR issues are articulated in the very heterogeneous RC community, we combine here results from a literature review and an international survey on RCR in RC.FRQ Action concerté

Development of a bilingual interdisciplinary scale assessing self-efficacy for participating in Medical Assistance in Dying

Medical Assistance in Dying (MAiD) is a complex process involving the person seeking care and their relatives. MAiD involves physical, psychosocial and spiritual needs, and consequently the involvement of an interdisciplinary team is beneficial. Therefore, updating the knowledge and skills of healthcare and social services professionals is critical. An interdisciplinary team from Laval University (Quebec, Canada) has developed a continuous training program for all health care and social services professionals who could be involved in the care of persons who request MAiD and their loved ones. It is crucial to assess whether the objectives of the continuous training program are being met, especially since this new training addresses several complex issues (legal, ethical, and clinical). Bandura's self-efficacy theory has been widely used to develop scales for assessing the impact of training programs and identifying knowledge gaps. Bandura's theory states that feeling secure in one's self-efficacy leads to self-determined motivation. Although there are various scales intended to measure self-efficacy in palliative care, none include self-efficacy for participating in the process surrounding MAiD. As a result, we aim to create a bilingual (English-French) interdisciplinary scale to assess self-efficacy for participating in the process surrounding MAiD. The scale will allow decision-makers and researchers to identify current knowledge gaps. It will also be useful for assessing the impact of current and future training programs addressing this end-of-life practice. In this work in progress, we briefly introduce the training program and the future steps in the development and validation of the scale

Development of a bilingual interdisciplinary scale assessing self-efficacy for participating in Medical Assistance in Dying

Medical Assistance in Dying (MAiD) is a complex process involving the person seeking care and their relatives. MAiD involves physical, psychosocial and spiritual needs, and consequently the involvement of an interdisciplinary team is beneficial. Therefore, updating the knowledge and skills of healthcare and social services professionals is critical. An interdisciplinary team from Laval University (Quebec, Canada) has developed a continuous training program for all health care and social services professionals who could be involved in the care of persons who request MAiD and their loved ones. It is crucial to assess whether the objectives of the continuous training program are being met, especially since this new training addresses several complex issues (legal, ethical, and clinical). Bandura's self-efficacy theory has been widely used to develop scales for assessing the impact of training programs and identifying knowledge gaps. Bandura's theory states that feeling secure in one's self-efficacy leads to self-determined motivation. Although there are various scales intended to measure self-efficacy in palliative care, none include self-efficacy for participating in the process surrounding MAiD. As a result, we aim to create a bilingual (English-French) interdisciplinary scale to assess self-efficacy for participating in the process surrounding MAiD. The scale will allow decision-makers and researchers to identify current knowledge gaps. It will also be useful for assessing the impact of current and future training programs addressing this end-of-life practice. In this work in progress, we briefly introduce the training program and the future steps in the development and validation of the scale

Identification of Distinctive Patterns of USP19-Mediated Growth Regulation in Normal and Malignant Cells

We previously reported that the USP19 deubiquitinating enzyme positively regulates proliferation in fibroblasts by stabilizing KPC1, a ubiquitin ligase for p27Kip1. To explore whether this role of USP19 extends to other cellular systems, we tested the effects of silencing of USP19 in several human prostate and breast models, including carcinoma cell lines. Depletion of USP19 inhibited proliferation in prostate cancer DU145, PC-3 and 22RV1 cells, which was similar to the pattern established in fibroblasts in that it was due to decreased progression from G1 to S phase and associated with a stabilization of the cyclin-dependent kinase inhibitor p27Kip1. However, in contrast to previous findings in fibroblasts, the stabilization of p27Kip1 upon USP19 depletion was not associated with changes in the levels of the KPC1 ligase. USP19 could also regulate the growth of immortalized MCF10A breast epithelial cells through a similar mechanism. This regulatory pattern was lost, though, in breast cancer MCF7 and MDA-MB-231 cells and in prostate carcinoma LNCaP cells. Of interest, the transformation of fibroblasts through overexpression of an oncogenic form of Ras disrupted the USP19-mediated regulation of cell growth and of levels of p27Kip1 and KPC1. Thus, the cell context appears determinant for the ability of USP19 to regulate cell proliferation and p27Kip1 levels. This may occur through both KPC1 dependent and independent mechanisms. Moreover, a complete loss of USP19 function on cell growth may arise as a result of oncogenic transformation of cells

Patient/family views on data sharing in rare diseases: study in the European LeukoTreat project.: Survey assessing data sharing in leukodystrophies

International audienceThe purpose of this study was to explore patient and family views on the sharing of their medical data in the context of compiling a European leukodystrophies database. A survey questionnaire was delivered with help from referral centers and the European Leukodystrophies Association, and the questionnaires returned were both quantitatively and qualitatively analyzed. This study found that patients/families were strongly in favor of participating. Patients/families hold great hope and trust in the development of this type of research. They have a strong need for information and transparency on database governance, the conditions framing access to data, all research conducted, partnerships with the pharmaceutical industry, and they also need access to results. Our findings bring ethics-driven arguments for a process combining initial broad consent with ongoing information. On both, we propose key item-deliverables to database participants

CD40-Activated B Cells Can Efficiently Prime Antigen-Specific Naïve CD8+ T Cells to Generate Effector but Not Memory T cells

Background: The identification of the signals that should be provided by antigen-presenting cells (APCs) to induce a CD8 + T cell response in vivo is essential to improve vaccination strategies using antigen-loaded APCs. Although dendritic cells have been extensively studied, the ability of other APC types, such as B cells, to induce a CD8 + T cell response have not been thoroughly evaluated. Methodology/Principal Findings: In this manuscript, we have characterized the ability of CD40-activated B cells, stimulated or not with Toll-like receptor (TLR) agonists (CpG or lipopolysaccharide) to induce the response of mouse naïve CD8 + T cells in vivo. Our results show that CD40-activated B cells can directly present antigen to naïve CD8 + T cells to induce the generation of potent effectors able to secrete cytokines, kill target cells and control a Listeria monocytogenes infection. However, CD40-activated B cell immunization did not lead to the proper formation of CD8 + memory T cells and further maturation of CD40-activated B cells with TLR agonists did not promote the development of CD8 + memory T cells. Our results also suggest that inefficient generation of CD8 + memory T cells with CD40-activated B cell immunization is a consequence of reduced Bcl-6 expression by effectors and enhanced contraction of the CD8 + T cell response. Conclusions: Understanding why CD40-activated B cell immunization is defective for the generation of memory T cells and gaining new insights about signals that should be provided by APCs are key steps before translating the use of CD40-B cel