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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Fortier, Philippe; Young, Nathan Lee; Lemieux, Jean-Michel; Walvoord, Michelle A.; +1 Authors

    Rising temperatures in the Arctic and subarctic are driving the rapid thaw of permafrost by reducing permafrost cooling, increasing active layer thickness, and promoting talik formation. In this study, the cyrohydrogeology of a permafrost mound located within the discontinuous permafrost zone near Umiujaq (Nunavik, Québec, Canada) is characterized through the analysis of a dataset covering more than two decades of monitoring. This dataset captures a high degree of interannual variability in air temperature and ground thermal conditions, as well as the formation and closure of a supra-permafrost talik. Data indicate that variable saturation and advective heat transport directly contribute to the expansion and contraction of the talik. Data further indicate the presence of two distinct thermo-hydrologic settings resulting from differences in surface conditions, as well as subsurface thermal and flow regimes. The first, found at the top of the mound feature, is characterized by very low moisture contents (<0.05 m3/m3), while the second, found at the side of the mound feature, shows higher annual moisture contents that strongly influence the dynamics of heat and groundwater flow. The data were synthesized into a detailed conceptual model of the cyrohydrogeological dynamics that highlights the important role of hydrogeological characterization and long-term data sets in understanding the effects of groundwater flow on seasonal frost and permafrost dynamics. Specifically, the results presented here show that in the absence of long-term data sets, longer-period transient phenomena such as talik opening and closure may be misrepresented as uni-directional feedback loops, as opposed to highly dynamic temporary phenomena.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ CorpusULarrow_drop_down
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    CorpusUL
    Article . 2023
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ CorpusULarrow_drop_down
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      CorpusUL
      Article . 2023
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Marin Jimenez, Astrid Patricia;

    Cette recherche doctorale a exploré la co-création d'un jeu musical éducatif. Plus spécifiquement, elle a exploré cette activité pédagogique créative pour diversifier les approches pédagogiques qualifiées de créatives qui ont été documentées jusqu'à présent en musique, notamment en contexte extrascolaire. Pour ce faire, ce projet doctoral a été structuré autour de quatre objectifs : 1) documenter les activités mises en place et réalisées durant le processus de co-création d'un jeu musical éducatif avec un groupe de jeunes musiciens apprenant un instrument de musique en contexte extrascolaire; 2) décrire les habitudes créatives (Lucas, 2016) qui ont été sollicitées par les participants tout au long du processus de création de leur jeu musical éducatif; 3) décrire, à partir des 8 facteurs proposés par O'Neill (2013), l'engagement perçu et manifesté par les participants durant la co-création de leur jeu musical éducatif; et 4) porter un regard critique, basé sur les trois composantes d'une pédagogie créative (Lin, 2011), envers l'approche pédagogique créative que la chercheure a mis en œuvre pour réussir cette activité d'apprentissage avec les participants. Un total de sept jeunes musiciens apprenant divers instruments musicaux (ex. : piano, guitare, violon, violoncelle) ont participé aux dix séances animées par la chercheure pour co-créer leur jeu musical éducatif. Différents outils de collecte de données ont été utilisés pour documenter ce projet : des enregistrements vidéo des séances, des observations, un questionnaire sur l'engagement envers l'activité réalisée (O'Neill, 2013), et un entretien de groupe pour approfondir la compréhension de l'activité d'apprentissage étudiée. Les résultats issus de ce projet de recherche ont mis en lumière que l'activité de co-création du jeu musical éducatif réalisé par les participants a fait appel aux trois composantes de la pédagogie créative de Lin (2011), soit l'enseignement créatif et l'enseignement pour la créativité dans la pédagogie de la chercheure, et l'apprentissage créatif des participants. Concernant leur apprentissage créatif, nos résultats ont mis en évidence que chacune des phases liées à la co-création d'un jeu musical éducatif (orientation, création, gameplay) ont fait appel aux cinq dimensions créatives suggérées par Lucas (2016) (ex. : être collaboratif, être imaginatif, être discipliné, être persistant, et être curieux), mais de façon différente selon le type d'activités réalisées et de la phase de co-création à laquelle les participants travaillaient. Quant à l'engagement des participants, nos résultats ont permis de relever que les 8 facteurs proposés par O'Neill (2013) ont soutenu, à des degrés divers toutefois, l'engagement perçu par nos participants. À ce titre, le facteur en lien avec les défis perçus durant la co-création d'un jeu musical éducatif a été celui qui a le plus contribué à soutenir leur engagement envers cette activité d'apprentissage. Nos observations des enregistrements vidéo ainsi que l'entretien de groupe réalisé à la fin du projet ont permis d'identifier et de décrire les moments où les participants ont manifesté leur engagement durant la création de leur jeu, c'est-à-dire lorsqu'ils restaient concentrés sur la tâche qu'ils réalisaient, lorsqu'ils manifestaient leur appréciation envers la tâche réalisée et les apprentissages acquis, ou lorsqu'ils persévéraient face à des difficultés, entre autres exemples. Par ailleurs, les réflexions critiques de la chercheure sur sa pédagogie ont fait ressortir que ses expériences précédentes en tant qu'enseignante du violon et d'auxiliaire de recherche ont possiblement influencé ses choix d'alignement d'apprentissages (Jones, 2005) tout au long du processus de co-création avec les participants, notamment en démontrant une préférence envers des approches pédagogiques moins hiérarchiques (midwife, fellow traveller). De plus, sa réflexion a relevé que les stratégies pédagogiques qui ont été plus efficaces pour co-créer le jeu musical éducatif ont été celles qui reflétaient une interconnexion entre les trois composantes de la pédagogie créative (Lin, 2011). À titre d'exemple, cette interconnexion se manifestait lorsque l'activité réalisée faisait appel à la créativité des participants (enseignement créatif), à l'aide d'une attitude ouverte et flexible de sa part (enseignement pour la créativité), laquelle entraîne à une expérience d'apprentissage créatif des participants. Finalement, l'intervention pédagogique implémentée par la chercheure a permis d'identifier les aspects liés aux modèles éducatifs, opérationnels et conceptuels utilisés pour mener son intervention éducative. Ces modèles ont été nécessaires pour établir les fondements pédagogiques qui se sont avérés pertinents pour structurer son activité d'apprentissage autour de la co-création d'un jeu musical éducatif. This doctoral research explored the co-creation of an educational music game as a pedagogical activity that could diversify the creative pedagogy approaches (Lin, 2011) documented to date in music, particularly in out-of-school settings. To that end, this research project was structured around four objectives: 1) to document, supported by the Creative and Playful Learning model (Kangas, 2010), the activities that were necessary to successfully complete the process of co-creating a music learning game with a group of young musicians (10-14 years old); 2) to describe the creative dimensions (Lucas, 2016) that were called upon by the participants throughout the process; 3) to describe, based on O'Neill's (2013) eight factors of engagement, the perceived and demonstrated engagement of the participants during the co-creation of their music learning game; and 4) to take a critical look, based on the three components of a creative pedagogy (Lin, 2011), towards the creative pedagogical approach the researcher implemented to successfully complete this learning activity with the participants. A total of seven young musicians learning a musical instrument (e.g., piano, guitar, violin, or cello) in an out-of-school context participated in ten music-learning-game-co-creation sessions facilitated by the researcher. Various data collection tools were used, including video recordings of the sessions, observations, an engagement questionnaire (O'Neill, 2013), and a group interview. The findings from this research project highlighted that the process of co-creating a music learning game put into action the three components of a creative pedagogy (Lin, 2011), notably creative teaching and teaching for creativity (in the researcher), and creative learning (in the participants). In relation to creative learning our results highlight that each of the phases related to co-creating an educational music game (i.e., orientation, creation, gameplay) called upon participants' five creative dimensions (e.g., being collaborative, being imaginative, being disciplined, being persistent, and being curious) (Lucas, 2016) in particular ways, depending on the type of activities performed during each phase. Regarding participants' engagement, our results allowed us to identify the eight factors (O'Neill, 2013) that contributed, to varying degrees, to sustaining participants' perceived engagement. As an example, the factor related to the perceived challenges during the co-creation of a music learning game was the factor that contributed the most to sustaining participants' engagement towards this learning activity. In contrast, the lack of perceived support from a teammate as well as the participants' instrument teachers was the factor that least supported participants engagement in this activity. Also, our observations and the group interview allowed us to identify and describe the moments where participants seemed to manifest their engagement during the creation of their game. For example, by remaining focused on the task, by verbally showing an appreciation for the task and the learning acquired, by persevering during difficulties and challenges, among other examples. In addition, the researcher's critical reflections noted that her previous experiences as a violin teacher and research assistant may have influenced her choices of learning alignments (Jones, 2005) throughout the co-creation process with the participants, notably a preference for less hierarchical pedagogical approaches (i.e., midwife, fellow traveler). Also, her reflection noted that the most effective pedagogical strategies were those that reflected an interconnectedness between the three components of creative pedagogy (Lin, 2011). Specifically, when the activity being conducted called upon students' creativity (creative teaching) and was well supported by an open and flexible attitude on her part (teaching for creativity), this resulted in a creative learning experience for the participants. In contrast, the less effective strategies were those that reflected a lack of connection among these components, either when she adopted an invasive attitude that did not respect the autonomy of the participants (i.e., less effective teaching for creativity that affects creative learning) or when the way that an activity was carried out did not maximize the intended opportunities for creative expression (i.e.: less effective creative teaching that results in less creative learning). Finally, the pedagogical intervention implemented by the researcher allowed us to identify the set of educational, operational, and conceptual models (e.g., Jones, 2005; Lin, 2011; Lucas, 2016 and O'Neill, 2013) that allowed us to establish the pedagogical foundations to structure a learning activity based on the co-creation of music learning games.

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    CorpusUL
    Other ORP type . 2022
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      CorpusUL
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    Authors: Lemarchand-Ghica, Alexandra;

    L'identité numérique est une notion complexe présente dans de nombreuses composantes de notre vie. Si les philosophes éprouvaient déjà des difficultés à cerner l'identité, le monde juridique s'en empare et l'adapte au monde numérique. Fortement attachée à l'individu, l'identité numérique n'est pas assez protégée sur internet. Usurpation d'identité, piratages ou vols de données minent l'identité numérique et menacent la confiance des individus dans le monde numérique. Les Gouvernements français et québécois développent des moyens d'identité numérique sécurisés et fiables pour permettre aux individus de se connecter sans craintes. Le projet français suit le schéma traditionnel de cartes d'identité adaptées au numérique, tandis que le gouvernement québécois conçoit un projet ambitieux d'identité numérique basée sur la chaîne de blocs qui permettra à chaque citoyen d'avoir un contrôle suprême sur son identité. Outre ces projets, la France et le Québec se réapproprient les fédérations d'identité, qui étaient jusque-là uniquement proposées par des entreprises privées. L'intérêt de la sécurisation de l'identité numérique est dans sa valeur fondamentale pour l'être humain. Miroir de chaque individu, elle est sensible et reflète tout ce qui le touche. Son accessibilité est garantie par les pouvoirs publics, puisqu'elle procure divers avantages sociétaux et économiques. Sa mise en place se fait au regard des standards internationaux afin d'être interopérable partout dans le monde, l'identité numérique ne connaissant pas de frontières, à l'image d'internet. Elle est également insensible au temps, puisqu'elle peut être stockée indéfiniment. Ainsi, des lois sont rédigées afin de contrôler la temporalité des données constituant l'identité numérique afin que l'individu puisse la maîtriser sereinement.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ CorpusULarrow_drop_down
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    CorpusUL
    Other ORP type . 2022
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      CorpusUL
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Almady, Saad;

    Le doryphore de la pomme de terre (DPT), Leptinotarsa decemlineata (Say), est l'un des principaux insectes ravageurs qui se nourrit du feuillage des plants de pomme de terre et cause d'importantes pertes de récolte, réduisant le rendement en tubercules s'il n'est pas contrôlé. Cet insecte peut développer une résistance aux insecticides à la suite d'une exposition répétée et s'adapter à toutes sortes d'environnements difficiles. De nombreuses méthodes ont été utilisées pour contrôler ce ravageur, y compris des méthodes physiques et biologiques, mais elles n'ont pas été efficaces à elles seules. Actuellement, la seule méthode de contrôler le DPT consiste à pulvériser des insecticides chimiques tout au long de son cycle de développement. Toutefois, l'utilisation excessive d'insecticides pourrait menacer la santé humaine et causer des problèmes environnementaux. L'objectif général de cette recherche était de développer une méthode efficace de contrôle pneumatique du DPT afin de réduire la dépendance aux insecticides chimiques dans les champs de pommes de terre. Dans ce contexte, un prototype de système pneumatique innovant a été conçu et fabriqué au Département des sols et de génie agroalimentaire de l'Université Laval. Le prototype utilise une pression d'air positive pour déloger les doryphores du feuillage des plants de pommes de terre, les déposer au sol entre les rangs et les écraser. Les effets de l'utilisation de ce prototype de système pneumatique sur la croissance des plants de pommes de terre et le rendement en tubercules ainsi que son efficacité de contrôle du DPT ont été étudiés. Trois vitesses de l'air (45, 50 et 55 m/s) et deux vitesses de déplacement (5 et 6 km/h) ont été testées. Les variables mesurées dans les parcelles de contrôle biologique et pneumatique étaient les populations de DPT à différents stades de développement, la hauteur des plants de pommes de terre, la matière sèche, l'indice de surface foliaire (ISF) et le rendement en tubercules. En général, les résultats ont montré que l'utilisation du prototype de système pneumatique pour contrôler le DPT n'a eu aucun effet significatif sur la croissance des plants de pommes de terre (hauteur, matière sèche, ISF). Les rendements en tubercules étaient comparables à ceux obtenus dans les parcelles témoins qui étaient traitées avec un insecticide biologique (Entrust) et le prototype était très efficace à déloger les doryphores. Cela indique que le prototype pourrait être utilisé de manière sécuritaire et efficace dans les champs de pommes de terre pour contrôler le DPT. La mise en œuvre de cette méthode de lutte innovante pourrait contribuer de manière significative à la réduction de l'utilisation des insecticides chimiques pour contrôler le DPT. The Colorado potato beetle (CPB), Leptinotarsa decemlineata (Say), is one of the major pest insects that feeds on potato plant foliage and causes severe crop losses, reducing potato tuber yields if left uncontrolled. This insect can develop a resistance to insecticides after repeated exposures and adapt to all kinds of harsh environments. Many methods have been used to control this pest, including physical and biological methods, but they have not been effective alone. Currently, the only method to control the CPB is to spray chemical insecticides during its life cycle. However, the excessive use of insecticides may threaten the human health and cause environmental problems. The general objective of this research was to develop an effective pneumatic control method for the CPB to reduce reliance on chemical insecticides in potato fields. In this context, a prototype of an innovative pneumatic system was designed and built at the Department of Soils and Agri-Food Engineering of Université Laval. The prototype uses positive air pressure to dislodge CPBs from potato foliage, deposit them on the ground between rows, and crush them. The effects of using the pneumatic system on potato growth and tuber yield as well as its efficacy in controlling the CPB were investigated. Three airflow velocities (45, 50, and 55 m/s) and two travel speeds (5 and 6 km/h) were tested. The measured variables in the organic and pneumatic control plots were CPB populations at different life stages, potato plant height, dry matter, leaf area index (LAI), and tuber yield. Overall, the results showed that the use of the pneumatic prototype system to control the CPB had no significant effect on potato plant growth (height, dry matter, LAI). Tuber yields were comparable to those obtained in the control plots which were treated with a biological insecticide (Entrust), and the prototype was highly effective in dislodging CPBs. This indicates that the prototype could be safely and efficiently used in potato fields to control the CPB. Implementation of this innovative control method could significantly contribute to reducing the use of chemical insecticides to control the CPB.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ CorpusULarrow_drop_down
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    CorpusUL
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      CorpusUL
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    Authors: Godbout, Anne-Sophie;

    Selon les projections de l'Alzheimer's Disease International (ADI, 2018), le nombre mondial de cas diagnostiqués de maladie d'Alzheimer (MA) triplera d'ici 2050. Ce trouble est caractérisé par un ensemble de symptômes que l'on peut diviser en trois catégories, soit les symptômes cognitifs, les symptômes fonctionnels et les symptômes psychologiques et comportementaux (SCPD). Les inhibiteurs de la cholinestérase (IAChEs) - donépézil, rivastigmine, et galantamine - sont des agents pharmacologiques qui sont prescrits pour le traitement symptomatologique de la MA. Il est estimé que 80 % des personnes qui sont atteintes de la MA sont prises en charge par un proche. Le rôle de proche aidant (PA) est associé à un ensemble de stresseurs. Le terme fardeau est souvent utilisé pour faire référence à cette charge et à ses conséquences négatives. La sévérité de la symptomatologie de l'aidé a un effet documenté sur le fardeau du PA et les symptômes fonctionnels et les SCPD seraient les catégories de symptômes dont l'effet négatif est le plus important. L'objectif de ce mémoire doctoral est d'évaluer si par leurs effets sur la symptomatologie de l'aidé, les IAChEs ont des répercussions positives sur le fardeau du PA. Pour ce faire, une recension systématique avec résumé narratif a été réalisée. Les résultats obtenus révèlent des changements en faveur du traitement sur au moins une des trois catégories de symptômes de la MA et des changements concomitants en faveur du traitement sur le fardeau dans 8 des 12 études retenues. Toutefois, les effets observés sont petits et plusieurs variables non contrôlées pourraient expliquer les différences observées. Les résultats de cette recension laissent croire que les IAChEs n'ont pas d'effets cliniquement significatifs sur le fardeau du PA. Les IAChEs ne pouvant pas être utilisés comme façon de diminuer le fardeau, la mise en place d'autres interventions s'adressant tant au PA, à l'aidé qu'à la dyade semble être une avenue bien plus prometteuse.

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    Authors: Tremblay, Véronique;

    La norme de consentement préalable, libre et éclairé (CPLE) est une norme internationale contestée. Alors que certains y voient la possibilité d'obtenir le consentement des peuples autochtones sur des questions qui les affectent directement, d'autres y voient plutôt un droit de veto (Papillon, 2015 : 23). Le cadre analytique utilisé pour cette recherche se base sur l'appropriation des normes internationales en droit interne et en politique nationale. Il existe deux grands corps littéraires et académiques portant sur l'appropriation des normes internationales, à savoir les chercheurs en relations internationales qui s'intéressent aux processus politiques par lesquels les normes sont diffusées et contestées au niveau national ainsi que les chercheurs en politique comparée qui se concentrent davantage sur les processus de contestation des normes (Macdonald and Nem Singh, 2020 : 2). Ces deux corps littéraires permettent, conjointement, de comprendre les différentes variations des modèles de domestications et d'appropriation des normes internationales. Ainsi, ceux-ci s'appliquent très bien à l'étude de l'appropriation de la norme de CPLE. Ce mémoire se concentre sur deux pays en particulier, à savoir le Canada et la Norvège. Le choix de ces pays d'étude est basé sur le fait que la Norvège est signataire de la Convention No. 169 de l'Organisation internationale du travail alors que le Canada ne l'est pas. En revanche, les deux pays appuient la Déclaration des Nations Unies sur les droits des peuples autochtones. Le but de ce mémoire est donc de déterminer comment, malgré leurs différences sur le plan juridique et politique, le Canada et la Norvège s'approprient la norme de CPLE. En effet, la question de recherche est la suivante : Comment le Canada et la Norvège s'approprient-ils la norme de CPLE relativement aux activités extractives sur les terres ancestrales/traditionnelles des peuples autochtones? Afin de répondre à la question de recherche, la méthode privilégiée est celle de l'étude de cas comparée. Celle-ci se décline en deux temps. Dans un premier temps, il s'agit de s'intéresser au Canada et à la Norvège en tant que pays indépendants. Le but est de déterminer et définir comment la norme de CPLE est appliquée et appropriée de manière générale dans les deux pays. Dans un deuxième temps, il s'agit de s'intéresser au projet de pipeline Trans Mountain et au projet de la mine Nussir. Cette fois-ci, le but de l'étude de cas comparée est de voir comment la norme de CPLE a été appliquée de manière plus concrète. The norm of free, prior, and informed consent (FPIC) is a contested international norm. While some see it as an opportunity to obtain the consent of indigenous peoples on matters that directly affect them, others see it as a right of veto (Papillon, 2015: 23). The analytical framework used for this research is based on the appropriation of international norms into domestic law and policy. There are two main bodies of literature and scholars on the appropriation of international norms, namely international relations scholars who focus on the political processes by which norms are disseminated and contested at the national level, and comparative politics scholars who focus more on the processes of norm contestation (Macdonald and Nem Singh, 2020: 2). Together, these two bodies of literature allow for an understanding of the different variations of models of domestication and appropriation of international norms. As such, they apply very well to the study of the appropriation of the norm of FPIC. This paper focuses on two countries, namely Canada and Norway. The choice of these study countries is based on the fact that Norway is a signatory to the International Labour Organization Convention No. 169 while Canada is not. However, both countries support the United Nations Declaration on the Rights of Indigenous Peoples. The purpose of this paper is therefore to determine how, despite their legal and political differences, Canada and Norway are appropriating the norm of FPIC. Indeed, the research question is: How are Canada and Norway appropriating the norm of FPIC in relation to extractive activities on indigenous peoples' traditional lands? In order to answer the research question, a comparative case study approach is used. This is done in two stages. First, we look at Canada and Norway as independent countries. The aim is to determine and define how the norm of FPIC is generally applied and appropriated in both countries. The second phase of the project focuses on the Trans Mountain Pipeline Project and the Nussir Mine Project. This time, the purpose of the comparative case study is to see how the norm of FPIC has been applied in a more concrete way.

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    Authors: Shatov, Emil;

    Le doryphore de la pomme de terre (Leptinotarsa decemlineata Say) est un ravageur important des cultures de pomme de terre (Solanum tuberosum L) à travers le monde, qui montre une capacité d'adaptation remarquable au climat et aux insecticides employés pour le contrôler. Le développement d'alternatives à l'utilisation des insecticides pour le contrôle du doryphore est aujourd'hui un enjeu économique, environnemental et même de santé publique. Dans cette optique, des lignées de pomme de terre hybrides ont été produites récemment par hybridation de cultivars de pomme de terre avec l'espèce sauvage Solanum brevicaule, une solanacée proche de la pomme de terre exprimant dans ses feuilles le composé glycoalcaloïde dehydrocommersonine. Dans le cadre de ce projet, des tests de consommation foliaire « sans choix » (no-choice) ont été réalisés pour l'ensemble des stades de développement du doryphore avec la lignée 15953-12, un hybride Solanum brevicaulex Solanum tuberosum rétrocroisé (BC₅), pour évaluer son statut de résistance par le suivi des taux de croissance, de consommation foliaire et de mortalité de l'insecte, de son temps de développement, du comportement des larves et du succès reproducteur des adultes. Le taux de mortalité des larves nourries de la lignée 15953-12 a été de 30% supérieur à celui d'insectes témoins nourris de plants de pomme de terre. Le développement des larves a été altéré, avec une augmentation du temps de développement de 8,6 jours (133%) et un poids des adultes réduit de 37% à l'émergence par rapport au groupe témoin. Le poids des adultes était toujours plus faible de 33% une semaine après l'émergence et peu de femelles avaient pondu sur la plante hybride. Le nombre d'œufs pondus par les couples nourris de la lignée 15953-12 était réduit de 87% par rapport aux insectes témoins. Une réduction significative de la consommation foliaire (46%) et un évitement de la plante hybride par les larves ont semblé être les principales causes des effets observés, en concordance avec les effets généralement attribués aux composés glycoalcaloïdes. Des recherches additionnelles seront maintenant nécessaires pour évaluer le potentiel de résistance génétique du doryphore à la lignée 15953-12 et, plus spécifiquement, à la dehydrocommersonine. Colorado Potato Beetle (CPB) (Leptinotarsa decemlineata Say) is a worldwide pest of cultivated potato (Solanum tuberosum L). The CPB can quickly and easily adapt to climate or insecticides, which explains why it is such a widespread and hardy pest. Nowadays, finding alternatives to heavy insecticide usage to control the CPB is much needed not only from economic and ecological standpoints but also from a public health perspective. To this end, plant lines were developed recently by hybridization of potato cultivars with Solanum brevicaule, a wild tuber-bearing species containing the foliar glycoalkaloid dehydrocommersonine. No-choice feeding assays were conducted across all life stages of CPB with line 15953-12, a Solanum brevicaule x Solanum tuberosum BC₅ hybrid, to assess plant resistance through the monitoring of insect growth rate, development time, leaf consumption rate, mortality, larval behaviour and adult reproductive fitness. Larvae raised on the hybrid plant showed a 30% mortality rate, which is greater than the mortality rate of potato-fed insects. Larval development was both stunted and prolonged, with an 8.6-day (133%) increase in development time and a 37% decrease of adult weight upon emergence. After one week, adults raised and fed on the hybrid were 33% lighter than their control counterparts and fewer females laid eggs. The total amount of eggs per CPB couples on the hybrid line was 87% lesser than the control group. Significatively reduced feeding (46%) and avoidance of the hybrid plant by young larvae were likely the cause of the observed effects, in line with the usually reported effects of glycoalkaloids on herbivorous insects. Further studies will now be needed to document the long-term adaptation potential of CPB to line 15953-12, and, more specifically, to dehydrocommersonine, through natural selection.

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    Authors: Moineau, Sylvain;

    The capsule-producing, galactose-negative Streptococcus thermophilus MR-1C strain was first transformed with a low-copy plasmid containing a functional galK gene from Streptococcus salivarius to generate a recombinant galactose-fermenting Strep. thermophilus strain named MR-AAC. Then, we compared the functional properties of Strep. thermophilus MR-AAC with those of the parent MR-1C strain when used as starter for fermented products and cheese. In lactose-supplemented laboratory medium, MR-AAC metabolized galactose, but only when the amount of lactose was less than 0.1% (wt/vol). After 7 h of fermentation, the medium was almost depleted of galactose. The parent strain, MR-1C, showed the same pattern, except that the concentration of galactose decreased by only 25% during the same period. It was found that, during milk fermentation and Mozzarella cheese production, the galactose-fermenting phenotype was not expressed by MR-AAC and this strain expelled galactose into the medium at a level similar to the parent MR-1C strain. In milk and in lactose-supplemented medium, capsular exopolysaccharide production occurred mainly during the late exponential phase and the stationary growth phase with similar kinetics between MR-1C and MR-AAC.

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    CorpusUL
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    Authors: Nsounwoundi Mefire, Yolande Isabelle;

    Afin des adapter au rythme des technologies numériques, plusieurs institutions offrent aux apprenants la possibilité de suivre un cours avec un environnement numérique d'apprentissage. Lorsque ces derniers apprennent dans un tel environnement, ils vont laisser des traces numériques qui peuvent être collectées et analysées. Pour cela, certains chercheur sont proposé des modèles de l'analytique de l'apprentissage, mais qui ne sont pas ou peu au profit de l'apprenant. Par exemple, leur modèle analytique ne favorisent pas un apprentissage autorégulé de l'apprenant sur l'environnement numérique d'apprentissage. La question est de savoir comment utiliser les traces d'apprentissage collectées sur l'environnement numérique d'apprentissage pour aider les apprenants à réussir ? Nous avons donc proposé un modèle analytique DP2A pour détecter la performance d'autorégulation sur l'environnement numérique d'apprentissage, avec l'analytique de l'apprentissage (Learning Analytics, LA) et l'apprentissage automatique supervisé. En effet, ce modèle permet de classifier les performances d'autorégulation des apprenants en deux groupes : les apprenants autorégulés et les apprenants non autorégulés. Cette classification a été effectuée en utilisant les classificateurs SVM et KNN, avec et sans ajustement des hyperparamètres de base. L'évaluation des classificateurs a montré que le classificateur SVM avec ajustement des hyperparamètres de base a bien prédit la classe d'autorégulation d'un apprenant, avec un taux de classification de 99%. Compte tenu de la performance de ce classificateur, il est approprié pour rendre optimal notre modèle DP2A dans la détection de la performance d'autorégulation des apprenants sur l'environnement numérique d'apprentissage. Il serait envisageable à l'avenir d'intégrer le classificateurs SVM avec ajustement des hyperparamètres de base pour détecter la performance d'autorégulation et éventuellement générer des conseils personnalisés à l'apprenant sur sa stratégie d'autorégulation. Many institutions offer learners the opportunity to take a course in a digital learning environment in order to keep pace with digital technologies. When they learn in this kind of environment, they will leave digital traces that can be collected and analyzed. Some researchers have proposed models of learning analytics, but they have had little or no benefit to the learner. For example, their analytic model does not promote self-regulated learner learning in the digital learning environment. The question is how can we use the learning traces collected in the digital learning environment to help learners succeed? Consequently, we proposed a DP2A analytic model to detect self-regulatory performance in the digital learning environment, using Learning Analytics (LA) and supervised machine learning. Indeed, this model allows classifying learners' self-regulation performance into two groups: self-regulated learners and non-self-regulated learners. The classification was performed using the SVM and KNN classifiers, with and without adjustment of the basic hyperparameters. Evaluation of the classifiers showed that the SVM classifier with basics hyperparameters adjustment predicted a learner's self-regulation class well, with a classification rate of 99%. Considering the performance of this classifier, it is appropriate to make our DP2A model optimal for detecting learner's self-regulation performance in the digital learning environment. In the future, it would be conceivable to integrate the SVM classifiers with adjustment of the basic hyperparameters to detect the self-regulation performance and eventually generate personalized advice to the learner on his self-regulation strategy.

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    Authors: Grandisson, Marie; Marcotte, Justine; Milot, Élise; Allaire, Anne-Sophie; +1 Authors

    This article presents the results of a study on the perspectives of stakeholders from mainstream and specialised sports settings on seven strategies that could boost the impact of sports on social inclusion of people with intellectual disability. These strategies are: 1) developing Unified Sports; 2) conducting activities to raise awareness; 3) providing training to coaches; 4) using shadows; 5) developing a peer-support structure; 6) having a resource person available when needed; 7) facilitating engagement in non-playing roles. The perspectives of 28 stakeholders regarding the advantages, disadvantages and considerations for implementation of the different strategies were gathered in discussion groups. Findings could help diversify opportunities for athletes with intellectual disability and develop programs and policies that contribute to building inclusive communities through sports.

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    CorpusUL
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1,954 Research products
  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Fortier, Philippe; Young, Nathan Lee; Lemieux, Jean-Michel; Walvoord, Michelle A.; +1 Authors

    Rising temperatures in the Arctic and subarctic are driving the rapid thaw of permafrost by reducing permafrost cooling, increasing active layer thickness, and promoting talik formation. In this study, the cyrohydrogeology of a permafrost mound located within the discontinuous permafrost zone near Umiujaq (Nunavik, Québec, Canada) is characterized through the analysis of a dataset covering more than two decades of monitoring. This dataset captures a high degree of interannual variability in air temperature and ground thermal conditions, as well as the formation and closure of a supra-permafrost talik. Data indicate that variable saturation and advective heat transport directly contribute to the expansion and contraction of the talik. Data further indicate the presence of two distinct thermo-hydrologic settings resulting from differences in surface conditions, as well as subsurface thermal and flow regimes. The first, found at the top of the mound feature, is characterized by very low moisture contents (<0.05 m3/m3), while the second, found at the side of the mound feature, shows higher annual moisture contents that strongly influence the dynamics of heat and groundwater flow. The data were synthesized into a detailed conceptual model of the cyrohydrogeological dynamics that highlights the important role of hydrogeological characterization and long-term data sets in understanding the effects of groundwater flow on seasonal frost and permafrost dynamics. Specifically, the results presented here show that in the absence of long-term data sets, longer-period transient phenomena such as talik opening and closure may be misrepresented as uni-directional feedback loops, as opposed to highly dynamic temporary phenomena.

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    CorpusUL
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Marin Jimenez, Astrid Patricia;

    Cette recherche doctorale a exploré la co-création d'un jeu musical éducatif. Plus spécifiquement, elle a exploré cette activité pédagogique créative pour diversifier les approches pédagogiques qualifiées de créatives qui ont été documentées jusqu'à présent en musique, notamment en contexte extrascolaire. Pour ce faire, ce projet doctoral a été structuré autour de quatre objectifs : 1) documenter les activités mises en place et réalisées durant le processus de co-création d'un jeu musical éducatif avec un groupe de jeunes musiciens apprenant un instrument de musique en contexte extrascolaire; 2) décrire les habitudes créatives (Lucas, 2016) qui ont été sollicitées par les participants tout au long du processus de création de leur jeu musical éducatif; 3) décrire, à partir des 8 facteurs proposés par O'Neill (2013), l'engagement perçu et manifesté par les participants durant la co-création de leur jeu musical éducatif; et 4) porter un regard critique, basé sur les trois composantes d'une pédagogie créative (Lin, 2011), envers l'approche pédagogique créative que la chercheure a mis en œuvre pour réussir cette activité d'apprentissage avec les participants. Un total de sept jeunes musiciens apprenant divers instruments musicaux (ex. : piano, guitare, violon, violoncelle) ont participé aux dix séances animées par la chercheure pour co-créer leur jeu musical éducatif. Différents outils de collecte de données ont été utilisés pour documenter ce projet : des enregistrements vidéo des séances, des observations, un questionnaire sur l'engagement envers l'activité réalisée (O'Neill, 2013), et un entretien de groupe pour approfondir la compréhension de l'activité d'apprentissage étudiée. Les résultats issus de ce projet de recherche ont mis en lumière que l'activité de co-création du jeu musical éducatif réalisé par les participants a fait appel aux trois composantes de la pédagogie créative de Lin (2011), soit l'enseignement créatif et l'enseignement pour la créativité dans la pédagogie de la chercheure, et l'apprentissage créatif des participants. Concernant leur apprentissage créatif, nos résultats ont mis en évidence que chacune des phases liées à la co-création d'un jeu musical éducatif (orientation, création, gameplay) ont fait appel aux cinq dimensions créatives suggérées par Lucas (2016) (ex. : être collaboratif, être imaginatif, être discipliné, être persistant, et être curieux), mais de façon différente selon le type d'activités réalisées et de la phase de co-création à laquelle les participants travaillaient. Quant à l'engagement des participants, nos résultats ont permis de relever que les 8 facteurs proposés par O'Neill (2013) ont soutenu, à des degrés divers toutefois, l'engagement perçu par nos participants. À ce titre, le facteur en lien avec les défis perçus durant la co-création d'un jeu musical éducatif a été celui qui a le plus contribué à soutenir leur engagement envers cette activité d'apprentissage. Nos observations des enregistrements vidéo ainsi que l'entretien de groupe réalisé à la fin du projet ont permis d'identifier et de décrire les moments où les participants ont manifesté leur engagement durant la création de leur jeu, c'est-à-dire lorsqu'ils restaient concentrés sur la tâche qu'ils réalisaient, lorsqu'ils manifestaient leur appréciation envers la tâche réalisée et les apprentissages acquis, ou lorsqu'ils persévéraient face à des difficultés, entre autres exemples. Par ailleurs, les réflexions critiques de la chercheure sur sa pédagogie ont fait ressortir que ses expériences précédentes en tant qu'enseignante du violon et d'auxiliaire de recherche ont possiblement influencé ses choix d'alignement d'apprentissages (Jones, 2005) tout au long du processus de co-création avec les participants, notamment en démontrant une préférence envers des approches pédagogiques moins hiérarchiques (midwife, fellow traveller). De plus, sa réflexion a relevé que les stratégies pédagogiques qui ont été plus efficaces pour co-créer le jeu musical éducatif ont été celles qui reflétaient une interconnexion entre les trois composantes de la pédagogie créative (Lin, 2011). À titre d'exemple, cette interconnexion se manifestait lorsque l'activité réalisée faisait appel à la créativité des participants (enseignement créatif), à l'aide d'une attitude ouverte et flexible de sa part (enseignement pour la créativité), laquelle entraîne à une expérience d'apprentissage créatif des participants. Finalement, l'intervention pédagogique implémentée par la chercheure a permis d'identifier les aspects liés aux modèles éducatifs, opérationnels et conceptuels utilisés pour mener son intervention éducative. Ces modèles ont été nécessaires pour établir les fondements pédagogiques qui se sont avérés pertinents pour structurer son activité d'apprentissage autour de la co-création d'un jeu musical éducatif. This doctoral research explored the co-creation of an educational music game as a pedagogical activity that could diversify the creative pedagogy approaches (Lin, 2011) documented to date in music, particularly in out-of-school settings. To that end, this research project was structured around four objectives: 1) to document, supported by the Creative and Playful Learning model (Kangas, 2010), the activities that were necessary to successfully complete the process of co-creating a music learning game with a group of young musicians (10-14 years old); 2) to describe the creative dimensions (Lucas, 2016) that were called upon by the participants throughout the process; 3) to describe, based on O'Neill's (2013) eight factors of engagement, the perceived and demonstrated engagement of the participants during the co-creation of their music learning game; and 4) to take a critical look, based on the three components of a creative pedagogy (Lin, 2011), towards the creative pedagogical approach the researcher implemented to successfully complete this learning activity with the participants. A total of seven young musicians learning a musical instrument (e.g., piano, guitar, violin, or cello) in an out-of-school context participated in ten music-learning-game-co-creation sessions facilitated by the researcher. Various data collection tools were used, including video recordings of the sessions, observations, an engagement questionnaire (O'Neill, 2013), and a group interview. The findings from this research project highlighted that the process of co-creating a music learning game put into action the three components of a creative pedagogy (Lin, 2011), notably creative teaching and teaching for creativity (in the researcher), and creative learning (in the participants). In relation to creative learning our results highlight that each of the phases related to co-creating an educational music game (i.e., orientation, creation, gameplay) called upon participants' five creative dimensions (e.g., being collaborative, being imaginative, being disciplined, being persistent, and being curious) (Lucas, 2016) in particular ways, depending on the type of activities performed during each phase. Regarding participants' engagement, our results allowed us to identify the eight factors (O'Neill, 2013) that contributed, to varying degrees, to sustaining participants' perceived engagement. As an example, the factor related to the perceived challenges during the co-creation of a music learning game was the factor that contributed the most to sustaining participants' engagement towards this learning activity. In contrast, the lack of perceived support from a teammate as well as the participants' instrument teachers was the factor that least supported participants engagement in this activity. Also, our observations and the group interview allowed us to identify and describe the moments where participants seemed to manifest their engagement during the creation of their game. For example, by remaining focused on the task, by verbally showing an appreciation for the task and the learning acquired, by persevering during difficulties and challenges, among other examples. In addition, the researcher's critical reflections noted that her previous experiences as a violin teacher and research assistant may have influenced her choices of learning alignments (Jones, 2005) throughout the co-creation process with the participants, notably a preference for less hierarchical pedagogical approaches (i.e., midwife, fellow traveler). Also, her reflection noted that the most effective pedagogical strategies were those that reflected an interconnectedness between the three components of creative pedagogy (Lin, 2011). Specifically, when the activity being conducted called upon students' creativity (creative teaching) and was well supported by an open and flexible attitude on her part (teaching for creativity), this resulted in a creative learning experience for the participants. In contrast, the less effective strategies were those that reflected a lack of connection among these components, either when she adopted an invasive attitude that did not respect the autonomy of the participants (i.e., less effective teaching for creativity that affects creative learning) or when the way that an activity was carried out did not maximize the intended opportunities for creative expression (i.e.: less effective creative teaching that results in less creative learning). Finally, the pedagogical intervention implemented by the researcher allowed us to identify the set of educational, operational, and conceptual models (e.g., Jones, 2005; Lin, 2011; Lucas, 2016 and O'Neill, 2013) that allowed us to establish the pedagogical foundations to structure a learning activity based on the co-creation of music learning games.

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    Authors: Lemarchand-Ghica, Alexandra;

    L'identité numérique est une notion complexe présente dans de nombreuses composantes de notre vie. Si les philosophes éprouvaient déjà des difficultés à cerner l'identité, le monde juridique s'en empare et l'adapte au monde numérique. Fortement attachée à l'individu, l'identité numérique n'est pas assez protégée sur internet. Usurpation d'identité, piratages ou vols de données minent l'identité numérique et menacent la confiance des individus dans le monde numérique. Les Gouvernements français et québécois développent des moyens d'identité numérique sécurisés et fiables pour permettre aux individus de se connecter sans craintes. Le projet français suit le schéma traditionnel de cartes d'identité adaptées au numérique, tandis que le gouvernement québécois conçoit un projet ambitieux d'identité numérique basée sur la chaîne de blocs qui permettra à chaque citoyen d'avoir un contrôle suprême sur son identité. Outre ces projets, la France et le Québec se réapproprient les fédérations d'identité, qui étaient jusque-là uniquement proposées par des entreprises privées. L'intérêt de la sécurisation de l'identité numérique est dans sa valeur fondamentale pour l'être humain. Miroir de chaque individu, elle est sensible et reflète tout ce qui le touche. Son accessibilité est garantie par les pouvoirs publics, puisqu'elle procure divers avantages sociétaux et économiques. Sa mise en place se fait au regard des standards internationaux afin d'être interopérable partout dans le monde, l'identité numérique ne connaissant pas de frontières, à l'image d'internet. Elle est également insensible au temps, puisqu'elle peut être stockée indéfiniment. Ainsi, des lois sont rédigées afin de contrôler la temporalité des données constituant l'identité numérique afin que l'individu puisse la maîtriser sereinement.

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    Authors: Almady, Saad;

    Le doryphore de la pomme de terre (DPT), Leptinotarsa decemlineata (Say), est l'un des principaux insectes ravageurs qui se nourrit du feuillage des plants de pomme de terre et cause d'importantes pertes de récolte, réduisant le rendement en tubercules s'il n'est pas contrôlé. Cet insecte peut développer une résistance aux insecticides à la suite d'une exposition répétée et s'adapter à toutes sortes d'environnements difficiles. De nombreuses méthodes ont été utilisées pour contrôler ce ravageur, y compris des méthodes physiques et biologiques, mais elles n'ont pas été efficaces à elles seules. Actuellement, la seule méthode de contrôler le DPT consiste à pulvériser des insecticides chimiques tout au long de son cycle de développement. Toutefois, l'utilisation excessive d'insecticides pourrait menacer la santé humaine et causer des problèmes environnementaux. L'objectif général de cette recherche était de développer une méthode efficace de contrôle pneumatique du DPT afin de réduire la dépendance aux insecticides chimiques dans les champs de pommes de terre. Dans ce contexte, un prototype de système pneumatique innovant a été conçu et fabriqué au Département des sols et de génie agroalimentaire de l'Université Laval. Le prototype utilise une pression d'air positive pour déloger les doryphores du feuillage des plants de pommes de terre, les déposer au sol entre les rangs et les écraser. Les effets de l'utilisation de ce prototype de système pneumatique sur la croissance des plants de pommes de terre et le rendement en tubercules ainsi que son efficacité de contrôle du DPT ont été étudiés. Trois vitesses de l'air (45, 50 et 55 m/s) et deux vitesses de déplacement (5 et 6 km/h) ont été testées. Les variables mesurées dans les parcelles de contrôle biologique et pneumatique étaient les populations de DPT à différents stades de développement, la hauteur des plants de pommes de terre, la matière sèche, l'indice de surface foliaire (ISF) et le rendement en tubercules. En général, les résultats ont montré que l'utilisation du prototype de système pneumatique pour contrôler le DPT n'a eu aucun effet significatif sur la croissance des plants de pommes de terre (hauteur, matière sèche, ISF). Les rendements en tubercules étaient comparables à ceux obtenus dans les parcelles témoins qui étaient traitées avec un insecticide biologique (Entrust) et le prototype était très efficace à déloger les doryphores. Cela indique que le prototype pourrait être utilisé de manière sécuritaire et efficace dans les champs de pommes de terre pour contrôler le DPT. La mise en œuvre de cette méthode de lutte innovante pourrait contribuer de manière significative à la réduction de l'utilisation des insecticides chimiques pour contrôler le DPT. The Colorado potato beetle (CPB), Leptinotarsa decemlineata (Say), is one of the major pest insects that feeds on potato plant foliage and causes severe crop losses, reducing potato tuber yields if left uncontrolled. This insect can develop a resistance to insecticides after repeated exposures and adapt to all kinds of harsh environments. Many methods have been used to control this pest, including physical and biological methods, but they have not been effective alone. Currently, the only method to control the CPB is to spray chemical insecticides during its life cycle. However, the excessive use of insecticides may threaten the human health and cause environmental problems. The general objective of this research was to develop an effective pneumatic control method for the CPB to reduce reliance on chemical insecticides in potato fields. In this context, a prototype of an innovative pneumatic system was designed and built at the Department of Soils and Agri-Food Engineering of Université Laval. The prototype uses positive air pressure to dislodge CPBs from potato foliage, deposit them on the ground between rows, and crush them. The effects of using the pneumatic system on potato growth and tuber yield as well as its efficacy in controlling the CPB were investigated. Three airflow velocities (45, 50, and 55 m/s) and two travel speeds (5 and 6 km/h) were tested. The measured variables in the organic and pneumatic control plots were CPB populations at different life stages, potato plant height, dry matter, leaf area index (LAI), and tuber yield. Overall, the results showed that the use of the pneumatic prototype system to control the CPB had no significant effect on potato plant growth (height, dry matter, LAI). Tuber yields were comparable to those obtained in the control plots which were treated with a biological insecticide (Entrust), and the prototype was highly effective in dislodging CPBs. This indicates that the prototype could be safely and efficiently used in potato fields to control the CPB. Implementation of this innovative control method could significantly contribute to reducing the use of chemical insecticides to control the CPB.

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    Authors: Godbout, Anne-Sophie;

    Selon les projections de l'Alzheimer's Disease International (ADI, 2018), le nombre mondial de cas diagnostiqués de maladie d'Alzheimer (MA) triplera d'ici 2050. Ce trouble est caractérisé par un ensemble de symptômes que l'on peut diviser en trois catégories, soit les symptômes cognitifs, les symptômes fonctionnels et les symptômes psychologiques et comportementaux (SCPD). Les inhibiteurs de la cholinestérase (IAChEs) - donépézil, rivastigmine, et galantamine - sont des agents pharmacologiques qui sont prescrits pour le traitement symptomatologique de la MA. Il est estimé que 80 % des personnes qui sont atteintes de la MA sont prises en charge par un proche. Le rôle de proche aidant (PA) est associé à un ensemble de stresseurs. Le terme fardeau est souvent utilisé pour faire référence à cette charge et à ses conséquences négatives. La sévérité de la symptomatologie de l'aidé a un effet documenté sur le fardeau du PA et les symptômes fonctionnels et les SCPD seraient les catégories de symptômes dont l'effet négatif est le plus important. L'objectif de ce mémoire doctoral est d'évaluer si par leurs effets sur la symptomatologie de l'aidé, les IAChEs ont des répercussions positives sur le fardeau du PA. Pour ce faire, une recension systématique avec résumé narratif a été réalisée. Les résultats obtenus révèlent des changements en faveur du traitement sur au moins une des trois catégories de symptômes de la MA et des changements concomitants en faveur du traitement sur le fardeau dans 8 des 12 études retenues. Toutefois, les effets observés sont petits et plusieurs variables non contrôlées pourraient expliquer les différences observées. Les résultats de cette recension laissent croire que les IAChEs n'ont pas d'effets cliniquement significatifs sur le fardeau du PA. Les IAChEs ne pouvant pas être utilisés comme façon de diminuer le fardeau, la mise en place d'autres interventions s'adressant tant au PA, à l'aidé qu'à la dyade semble être une avenue bien plus prometteuse.

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    Authors: Tremblay, Véronique;

    La norme de consentement préalable, libre et éclairé (CPLE) est une norme internationale contestée. Alors que certains y voient la possibilité d'obtenir le consentement des peuples autochtones sur des questions qui les affectent directement, d'autres y voient plutôt un droit de veto (Papillon, 2015 : 23). Le cadre analytique utilisé pour cette recherche se base sur l'appropriation des normes internationales en droit interne et en politique nationale. Il existe deux grands corps littéraires et académiques portant sur l'appropriation des normes internationales, à savoir les chercheurs en relations internationales qui s'intéressent aux processus politiques par lesquels les normes sont diffusées et contestées au niveau national ainsi que les chercheurs en politique comparée qui se concentrent davantage sur les processus de contestation des normes (Macdonald and Nem Singh, 2020 : 2). Ces deux corps littéraires permettent, conjointement, de comprendre les différentes variations des modèles de domestications et d'appropriation des normes internationales. Ainsi, ceux-ci s'appliquent très bien à l'étude de l'appropriation de la norme de CPLE. Ce mémoire se concentre sur deux pays en particulier, à savoir le Canada et la Norvège. Le choix de ces pays d'étude est basé sur le fait que la Norvège est signataire de la Convention No. 169 de l'Organisation internationale du travail alors que le Canada ne l'est pas. En revanche, les deux pays appuient la Déclaration des Nations Unies sur les droits des peuples autochtones. Le but de ce mémoire est donc de déterminer comment, malgré leurs différences sur le plan juridique et politique, le Canada et la Norvège s'approprient la norme de CPLE. En effet, la question de recherche est la suivante : Comment le Canada et la Norvège s'approprient-ils la norme de CPLE relativement aux activités extractives sur les terres ancestrales/traditionnelles des peuples autochtones? Afin de répondre à la question de recherche, la méthode privilégiée est celle de l'étude de cas comparée. Celle-ci se décline en deux temps. Dans un premier temps, il s'agit de s'intéresser au Canada et à la Norvège en tant que pays indépendants. Le but est de déterminer et définir comment la norme de CPLE est appliquée et appropriée de manière générale dans les deux pays. Dans un deuxième temps, il s'agit de s'intéresser au projet de pipeline Trans Mountain et au projet de la mine Nussir. Cette fois-ci, le but de l'étude de cas comparée est de voir comment la norme de CPLE a été appliquée de manière plus concrète. The norm of free, prior, and informed consent (FPIC) is a contested international norm. While some see it as an opportunity to obtain the consent of indigenous peoples on matters that directly affect them, others see it as a right of veto (Papillon, 2015: 23). The analytical framework used for this research is based on the appropriation of international norms into domestic law and policy. There are two main bodies of literature and scholars on the appropriation of international norms, namely international relations scholars who focus on the political processes by which norms are disseminated and contested at the national level, and comparative politics scholars who focus more on the processes of norm contestation (Macdonald and Nem Singh, 2020: 2). Together, these two bodies of literature allow for an understanding of the different variations of models of domestication and appropriation of international norms. As such, they apply very well to the study of the appropriation of the norm of FPIC. This paper focuses on two countries, namely Canada and Norway. The choice of these study countries is based on the fact that Norway is a signatory to the International Labour Organization Convention No. 169 while Canada is not. However, both countries support the United Nations Declaration on the Rights of Indigenous Peoples. The purpose of this paper is therefore to determine how, despite their legal and political differences, Canada and Norway are appropriating the norm of FPIC. Indeed, the research question is: How are Canada and Norway appropriating the norm of FPIC in relation to extractive activities on indigenous peoples' traditional lands? In order to answer the research question, a comparative case study approach is used. This is done in two stages. First, we look at Canada and Norway as independent countries. The aim is to determine and define how the norm of FPIC is generally applied and appropriated in both countries. The second phase of the project focuses on the Trans Mountain Pipeline Project and the Nussir Mine Project. This time, the purpose of the comparative case study is to see how the norm of FPIC has been applied in a more concrete way.

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    Authors: Shatov, Emil;

    Le doryphore de la pomme de terre (Leptinotarsa decemlineata Say) est un ravageur important des cultures de pomme de terre (Solanum tuberosum L) à travers le monde, qui montre une capacité d'adaptation remarquable au climat et aux insecticides employés pour le contrôler. Le développement d'alternatives à l'utilisation des insecticides pour le contrôle du doryphore est aujourd'hui un enjeu économique, environnemental et même de santé publique. Dans cette optique, des lignées de pomme de terre hybrides ont été produites récemment par hybridation de cultivars de pomme de terre avec l'espèce sauvage Solanum brevicaule, une solanacée proche de la pomme de terre exprimant dans ses feuilles le composé glycoalcaloïde dehydrocommersonine. Dans le cadre de ce projet, des tests de consommation foliaire « sans choix » (no-choice) ont été réalisés pour l'ensemble des stades de développement du doryphore avec la lignée 15953-12, un hybride Solanum brevicaulex Solanum tuberosum rétrocroisé (BC₅), pour évaluer son statut de résistance par le suivi des taux de croissance, de consommation foliaire et de mortalité de l'insecte, de son temps de développement, du comportement des larves et du succès reproducteur des adultes. Le taux de mortalité des larves nourries de la lignée 15953-12 a été de 30% supérieur à celui d'insectes témoins nourris de plants de pomme de terre. Le développement des larves a été altéré, avec une augmentation du temps de développement de 8,6 jours (133%) et un poids des adultes réduit de 37% à l'émergence par rapport au groupe témoin. Le poids des adultes était toujours plus faible de 33% une semaine après l'émergence et peu de femelles avaient pondu sur la plante hybride. Le nombre d'œufs pondus par les couples nourris de la lignée 15953-12 était réduit de 87% par rapport aux insectes témoins. Une réduction significative de la consommation foliaire (46%) et un évitement de la plante hybride par les larves ont semblé être les principales causes des effets observés, en concordance avec les effets généralement attribués aux composés glycoalcaloïdes. Des recherches additionnelles seront maintenant nécessaires pour évaluer le potentiel de résistance génétique du doryphore à la lignée 15953-12 et, plus spécifiquement, à la dehydrocommersonine. Colorado Potato Beetle (CPB) (Leptinotarsa decemlineata Say) is a worldwide pest of cultivated potato (Solanum tuberosum L). The CPB can quickly and easily adapt to climate or insecticides, which explains why it is such a widespread and hardy pest. Nowadays, finding alternatives to heavy insecticide usage to control the CPB is much needed not only from economic and ecological standpoints but also from a public health perspective. To this end, plant lines were developed recently by hybridization of potato cultivars with Solanum brevicaule, a wild tuber-bearing species containing the foliar glycoalkaloid dehydrocommersonine. No-choice feeding assays were conducted across all life stages of CPB with line 15953-12, a Solanum brevicaule x Solanum tuberosum BC₅ hybrid, to assess plant resistance through the monitoring of insect growth rate, development time, leaf consumption rate, mortality, larval behaviour and adult reproductive fitness. Larvae raised on the hybrid plant showed a 30% mortality rate, which is greater than the mortality rate of potato-fed insects. Larval development was both stunted and prolonged, with an 8.6-day (133%) increase in development time and a 37% decrease of adult weight upon emergence. After one week, adults raised and fed on the hybrid were 33% lighter than their control counterparts and fewer females laid eggs. The total amount of eggs per CPB couples on the hybrid line was 87% lesser than the control group. Significatively reduced feeding (46%) and avoidance of the hybrid plant by young larvae were likely the cause of the observed effects, in line with the usually reported effects of glycoalkaloids on herbivorous insects. Further studies will now be needed to document the long-term adaptation potential of CPB to line 15953-12, and, more specifically, to dehydrocommersonine, through natural selection.

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    Authors: Moineau, Sylvain;

    The capsule-producing, galactose-negative Streptococcus thermophilus MR-1C strain was first transformed with a low-copy plasmid containing a functional galK gene from Streptococcus salivarius to generate a recombinant galactose-fermenting Strep. thermophilus strain named MR-AAC. Then, we compared the functional properties of Strep. thermophilus MR-AAC with those of the parent MR-1C strain when used as starter for fermented products and cheese. In lactose-supplemented laboratory medium, MR-AAC metabolized galactose, but only when the amount of lactose was less than 0.1% (wt/vol). After 7 h of fermentation, the medium was almost depleted of galactose. The parent strain, MR-1C, showed the same pattern, except that the concentration of galactose decreased by only 25% during the same period. It was found that, during milk fermentation and Mozzarella cheese production, the galactose-fermenting phenotype was not expressed by MR-AAC and this strain expelled galactose into the medium at a level similar to the parent MR-1C strain. In milk and in lactose-supplemented medium, capsular exopolysaccharide production occurred mainly during the late exponential phase and the stationary growth phase with similar kinetics between MR-1C and MR-AAC.

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    Authors: Nsounwoundi Mefire, Yolande Isabelle;

    Afin des adapter au rythme des technologies numériques, plusieurs institutions offrent aux apprenants la possibilité de suivre un cours avec un environnement numérique d'apprentissage. Lorsque ces derniers apprennent dans un tel environnement, ils vont laisser des traces numériques qui peuvent être collectées et analysées. Pour cela, certains chercheur sont proposé des modèles de l'analytique de l'apprentissage, mais qui ne sont pas ou peu au profit de l'apprenant. Par exemple, leur modèle analytique ne favorisent pas un apprentissage autorégulé de l'apprenant sur l'environnement numérique d'apprentissage. La question est de savoir comment utiliser les traces d'apprentissage collectées sur l'environnement numérique d'apprentissage pour aider les apprenants à réussir ? Nous avons donc proposé un modèle analytique DP2A pour détecter la performance d'autorégulation sur l'environnement numérique d'apprentissage, avec l'analytique de l'apprentissage (Learning Analytics, LA) et l'apprentissage automatique supervisé. En effet, ce modèle permet de classifier les performances d'autorégulation des apprenants en deux groupes : les apprenants autorégulés et les apprenants non autorégulés. Cette classification a été effectuée en utilisant les classificateurs SVM et KNN, avec et sans ajustement des hyperparamètres de base. L'évaluation des classificateurs a montré que le classificateur SVM avec ajustement des hyperparamètres de base a bien prédit la classe d'autorégulation d'un apprenant, avec un taux de classification de 99%. Compte tenu de la performance de ce classificateur, il est approprié pour rendre optimal notre modèle DP2A dans la détection de la performance d'autorégulation des apprenants sur l'environnement numérique d'apprentissage. Il serait envisageable à l'avenir d'intégrer le classificateurs SVM avec ajustement des hyperparamètres de base pour détecter la performance d'autorégulation et éventuellement générer des conseils personnalisés à l'apprenant sur sa stratégie d'autorégulation. Many institutions offer learners the opportunity to take a course in a digital learning environment in order to keep pace with digital technologies. When they learn in this kind of environment, they will leave digital traces that can be collected and analyzed. Some researchers have proposed models of learning analytics, but they have had little or no benefit to the learner. For example, their analytic model does not promote self-regulated learner learning in the digital learning environment. The question is how can we use the learning traces collected in the digital learning environment to help learners succeed? Consequently, we proposed a DP2A analytic model to detect self-regulatory performance in the digital learning environment, using Learning Analytics (LA) and supervised machine learning. Indeed, this model allows classifying learners' self-regulation performance into two groups: self-regulated learners and non-self-regulated learners. The classification was performed using the SVM and KNN classifiers, with and without adjustment of the basic hyperparameters. Evaluation of the classifiers showed that the SVM classifier with basics hyperparameters adjustment predicted a learner's self-regulation class well, with a classification rate of 99%. Considering the performance of this classifier, it is appropriate to make our DP2A model optimal for detecting learner's self-regulation performance in the digital learning environment. In the future, it would be conceivable to integrate the SVM classifiers with adjustment of the basic hyperparameters to detect the self-regulation performance and eventually generate personalized advice to the learner on his self-regulation strategy.

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    CorpusUL
    Other ORP type . 2023
    Data sources: CorpusUL
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ CorpusULarrow_drop_down
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      CorpusUL
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    Authors: Grandisson, Marie; Marcotte, Justine; Milot, Élise; Allaire, Anne-Sophie; +1 Authors

    This article presents the results of a study on the perspectives of stakeholders from mainstream and specialised sports settings on seven strategies that could boost the impact of sports on social inclusion of people with intellectual disability. These strategies are: 1) developing Unified Sports; 2) conducting activities to raise awareness; 3) providing training to coaches; 4) using shadows; 5) developing a peer-support structure; 6) having a resource person available when needed; 7) facilitating engagement in non-playing roles. The perspectives of 28 stakeholders regarding the advantages, disadvantages and considerations for implementation of the different strategies were gathered in discussion groups. Findings could help diversify opportunities for athletes with intellectual disability and develop programs and policies that contribute to building inclusive communities through sports.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ CorpusULarrow_drop_down
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    CorpusUL
    Other ORP type . 2019
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ CorpusULarrow_drop_down
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      CorpusUL
      Other ORP type . 2019
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