709 research outputs found
Convergent Validity of the Larocque Obesity Questionnaire and Self-Reported Behavior during Obesity Treatment
No full text A validation study of the Larocque Obesity Questionnaire designed for use in obesity treatment was performed. Unlike other measures of obesity, this questionnaire includes scales measuring general emotional state as well as eating behavior. Subscales measured uncontrolled eating, physical stress responses, depression, and perfectionism. Subjects were 458 women and 79 men in treatment for obesity by general practitioners. The subscales showed acceptable internal consistency and related in predictable ways to measures of eating behavior, depression, self-criticism, stress, physical complaints and weight-control motivation. Subjects in the heaviest weight category (Body Mass Index ≥ 40) showed higher scores on Stress Response and Depression subscales. There were no significant sex differences, after controlling for weight. All four subscales showed significant improvement after 5 wk., which indicates their sensitivity to changes during treatment. </jats:p
Simulation of groundwater recharge in southern Quebec – method and database
No full textThe dataset contains all the method and data published by Emmanuel Dubois during his PhD project entitled impact of global changes on groundwater recharge in cold and humid climate, case study in southern Quebec (Canada). This research, carried out under the direction of Prof. Marie Larocque (UQAM), was part of a project aiming at developing new knowledge about the groundwater resources to anticipate the impact of climate change in southern Québec (Canada) and funded by the Québec Ministry of Environment and fight against climate change (MELCC). The study area, comprised of eight river watersheds and located between the St. Lawrence River and the USA-Quebec border (35 800 km2), is a strategic agricultural region with a hydrological dynamic led by cold winters and warm summers. The general objective of the research was to quantify the current and future impact of climate change on regional scale the groundwater recharge (GWR) in cold and humid climates, to better anticipate future conditions.
Estimates of GWR were simulated with a 500 m x 500 m resolution and a monthly time step using the HydroBudget model (Dubois et al., 2021b), developed during the project. The model was calibrated over the 1961-2017 period using river flows and baseflows (Dubois et al., 2021a). It was used to simulate GWR over the 1961-2017 period (past) and the 1951-2100 period (scenarios).
Each chapter of the thesis corresponds to a published (or submitted) article in a peer review journal. The data associated with each article were made public in individual Dataverse datasets. As well, the code of the HydroBudget model was made public on Dataverse (Dubois et al., 2021b), with an application example and a user guide (Dubois et al., 2021d). Each of these datasets contains detailed metadata, licences, and possible usage restrictions. Users are invited to refer to the individual datasets for more information.
Chapter 2 of the thesis presents the article “Simulation of long-term spatiotemporal variations in regional-scale groundwater recharge: contributions of a water budget approach in cold and humid climates” published in the journal Hydrology and Earth Science System in 2021 (Dubois et al., 2021a). The associated GWR simulations over the 1961-2017 period are available here (on the Dataverse platform; Dubois et al., 2021c): https://doi.org/10.5683/SP3/TFNPQF.
Chapter 3 of the thesis presents the article “Climate Change Impacts on Groundwater Recharge in Cold and Humid Climates: Controlling Processes and Thresholds” published in the special issue “Application of Climatic Data in Hydrologic Models” of the journal Climate in 2022 (Dubois et al., 2022a). The associated GWR simulations over the 1951-2100 period are available here (on the Dataverse platform; Dubois et al., 2022b): https://doi.org/10.5683/SP3/SWH4O1.
Chapter 4 of the thesis presents the article “Impact of land cover changes on long-term and regional-scale groundwater recharge simulation in cold and humid climates” that was submitted for publication in June 2022. The associated GWR simulations over the 1951-2100 period will be available in a new Dataverse dataset as soon as the article is accepted for publication
Les débuts de l'imprimerie à la Nouvelle-Orléans Deux livres de M. E. Larocque Tinker Un roman sur les Nègres de là Louisiane
No full textde Villiers Marc. Les débuts de l'imprimerie à la Nouvelle-Orléans Deux livres de M. E. Larocque Tinker Un roman sur les Nègres de là Louisiane. In: Journal de la Société des Américanistes. Tome 21 n°2, 1929. pp. 424-425
Journal of an excursion of Discovery to the Rocky Mountains by Mr Larocque in the year 1805, from the 2nd of June to the 18th of October.
No full text54 page
A modeling study of heterogeneity and surface water-groundwater interactions in the Thomas Brook catchment, Annapolis Valley (Nova Scotia, Canada)
No full textA modelling study of the impacts of subsurface heterogeneity on the hydrologic response of a small catchment is reported. The study is focused in particular on the hydraulic connection and interactions between surface water and groundwater. A coupled (1-D surface/3-D subsurface) numerical model is used to investigate, for a range of scenarios, the spatio-temporal patterns of response variables such as return flow, recharge, groundwater levels, surface saturation, and streamflow. Eight scenarios of increasing geological complexity are simulated for an 8 km<sup>2</sup> catchment in the Annapolis Valley (eastern Canada), introducing at each step more realistic representations of the geological strata and corresponding hydraulic properties. In a ninth scenario the effects of snow accumulation and snowmelt are also considered. The results show that response variables and significant features of the catchment (e.g. springs) can be adequately reproduced using a representation of the geology and model parameter values that are based on targeted fieldwork and existing databases, and that reflect to a sufficient degree the geological and hydrological complexity of the study area. The hydraulic conductivity values of the thin surficial sediment cover (especially till) and of the basalts in the upstream reaches emerge as key elements of the basin's heterogeneity for properly capturing the overall catchment response
Les surréalistes au Canada ou le loup dans la bergerie : l’exposition de Toronto en 1938
No full textYves M. Larocque : Surrealism in Canada or the Fox in the Hen-house : the Toronto exhibition of 1938.
Canada first learned of Surrealism through periodical publications, books, conferences and exhibitions. Each of those «dispositifs véhiculaires » (Régis Debray) conveyed a different idea of the movement depending on their own perception of it, for example, surrealism is essential to the opening up of Canadian society according to the Canadian Forum, yet it is denounced as fascism in the pages of the Saturday Night. Dating from the first manifestation of surrealism in Canada at the Canadian National Exhibition of 1938 (Toronto), the idea of Surrealism has been subject to English Canadian patriotism. Yet, at the same time, it is also free from it due to favorable conditions resulting from the temporary renunciation of the dominating ideology of nationalism. The dispersion of surrealism in Canada may, also, be related to the two waves of immigration that the country experienced at the beginning of the twentieth century. Moreover, Protestantism, which is linked to the burgeoning of industrialization and to the temperance of the senses, may be seen as responsible for the delay in the acceptance of Surrealism by English speaking Canadians.Larocque Yves. Les surréalistes au Canada ou le loup dans la bergerie : l’exposition de Toronto en 1938. In: Histoire de l'art, N°35-36, 1996. Réception, diffusion. pp. 71-80
Two Distinct Synchronization Processes in the Transition to Sleep: A High-Density Electroencephalographic Study
No full textObjectives: To assess how the characteristics of slow waves and spindles change in the falling-asleep process.
Design: Participants undergoing overnight high-density electroencephalographic recordings were awakened at 15- to 30-min intervals. One hundred forty-one falling-asleep periods were analyzed at the scalp and source level.
Setting: Sleep laboratory.
Participants: Six healthy participants.
Interventions: Serial awakenings.
Results: The number and amplitude of slow waves followed two dissociated, intersecting courses during the transition to sleep: slow wave number increased slowly at the beginning and rapidly at the end of the falling-asleep period, whereas amplitude at first increased rapidly and then decreased linearly. Most slow waves occurring early in the transition to sleep had a large amplitude, a steep slope, involved broad regions of the cortex, predominated over frontomedial regions, and preferentially originated from the sensorimotor and the posteromedial parietal cortex. Most slow waves occurring later had a smaller amplitude and slope, involved more circumscribed parts of the cortex, and had more evenly distributed origins. Spindles were initially sparse, fast, and involved few cortical regions, then became more numerous and slower, and involved more areas.
Conclusions: Our results provide evidence for two types of slow waves, which follow dissociated temporal courses in the transition to sleep and have distinct cortical origins and distributions. We hypothesize that these two types of slow waves result from two distinct synchronization processes: (1) a “bottom-up,” subcorticocortical, arousal system-dependent process that predominates in the early phase and leads to type I slow waves, and (2) a “horizontal,” corticocortical synchronization process that predominates in the late phase and leads to type II slow waves. The dissociation between these two synchronization processes in time and space suggests that they may be differentially affected by experimental manipulations and sleep disorders
L' impact du cancer infantile sur les capacités d'attachement des jeunes adultes survivants
No full textLe cancer infantile touche plusieurs enfants canadiens à chaque année. Les procédures médicales parfois douloureuses et le stress évoqué par la maladie potentiellement mortelle peuvent engendrer des conséquences physiques et psychosociales à court et à long terme. Le but de la présente étude est d'explorer si l'expérience du cancer infantile peut avoir un impact sur la qualité des relations d'attachement des jeunes adultes survivants. Pour ce faire, les résultats du groupe des jeunes adultes survivants de cancer infantile seront comparés à ceux d'un groupe contrôle sur les aspects suivants: le style d'attachement et la perception du style parental. Contrairement aux résultats anticipés, les jeunes adultes survivants de cancer infantile ne démontrent pas de style d'attachement significativement plus insécurisant avec leur entourage que le groupe témoin. Ils tendent plutôt à valoriser davantage les relations interpersonnelles que leurs pairs. Au niveau du style parental, aucune différence significative n'est retrouvée entre les groupes dans la perception des comportements de protection et d'attention bienveillante (caring) de la part du père. Par contre, les survivants de cancer infantile perçoivent plus de comportements de déni de l'autonomie psychologique et moins d'attention bienveillante de la part de la mère. En conclusion, la capacité d'attachement est semblable à celle retrouvée chez un groupe de pairs sans historique de cancer. Par contre, les relations entre mère et enfant semblent être plus vulnérables au stress évoqué par l'expérience d'un cancer infantile. L'étude avance quelques tentatives d'explications aux résultats obtenus et soulève certaines limites méthodologiques auxquelles des solutions sont proposées pour les recherches futures.statement of responsibility: Manon Larocque, B.Ps.thesis: Thèse (M. A. en Psychologie) -- Université de Moncton, Faculté des études supérieures et de la recherche, 2004.bibliography: Bibliographie.additional physical form: Également disponible sur microfiches et en version électronique. Les pages contenants des informations personnelles ne sont pas reproduites
Synthetic Air Data System for Pitot Tube Failure Detection on the Variable Skew Quad Plane
No full textPitot tube-free airspeed estimation methods exist for fixed-wing and multirotor configurations, but lack direct applicability to hybrid unmanned air vehicles due to their wide flight envelope and changing dynamics during transition. This work proposes a novel synthetic air data system for the Variable Skew Quad Plane (VSQP) hybrid vehicle to allow airspeed estimation from hover to high speed forward flight and provide pitot tube fault detection. An Extended Kalman Filter fuses Global Navigation Satellite System (GNSS) and inertial measurements using model-independent kinematics equations to estimate wind and airspeed without the use of the pitot tube. The filter is augmented by a simplified vehicle force model. Pitot tube fault detection is achieved with a simple thresholding operation on the pitot tube measurement and the airspeed estimation residual. Accurate airspeed estimation was validated with logged test flight data, achieving an overall 1.62 m/s root mean square error. Using the airspeed estimation, quick detection (0.16 s) of a real-life abrupt pitot tube fault was demonstrated. This new airspeed estimation method provides an innovative approach for increasing the fault tolerance of the VSQP and similar quad-plane vehicles.Aerospace Engineerin
Discrete-time survival trees and forests with time-varying covariates: Application to bankruptcy data
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