Lépidoptères diurnes capturés sur la côte est des baies d’Hudson et de James, Nouveau-Québec

La capture de lépidoptères diurnes dans neuf sites situés sur la côte est des baies de James et d'Hudson permet de signaler la présence de 22 espèces dans ce territoire inclus dans les zones subarctique et hémiarctique. Le lac Guillaume-Delisle semble posséder la plus grande diversité d'espèces, favorisé par la confluence dans cette région de plusieurs zones phytogéographiques. Quelques espèces voient leur aire de répartition connue s'étendre vers le nord.Twenty two species of butterflies were caught in 9 localities situated on the east coast of James Bay and Hudson Bay. The area studied is situated within both the subarctic and hemiarctic vegetation zones. The Lac Guillaume-Delisle area seems to have the richest fauna due to the occurrence of several phytogeographic limits in this region. The known distribution of a few species is extended northward

Comparing Two Approaches for Teaching Rhythm Reading Skills to First-Grade Children: A Pilot Study

This pilot study compared two approaches for teaching rhythm reading skills to first-grade children. Two intact first-grade classes participated in six lessons focusing on simple rhythms (4 beats using eighth and quarter notes). The lessons were based on the same musical materials; only the approach was varied. After random assignment, Class 1 experienced the “Subdivision Approach” where the quarter note is the beat, and eighth notes are subdivisions of the beat. Class 2 used the “Additive Approach” where, in this case, the eighth note is the “shortest sound” and a quarter note is the equivalent of two short sounds. Pre- and posttests were administered using the respective rhythm icons, asking the children to say the rhythm syllables and do the corresponding hand movements. Within-group pre- and posttest scores showed learning took place with each method. Several t-tests showed that the Additive Approach class scored significantly higher than the Subdivision Approach class (p\u3c.001). The results of this study indicate that, for this particular set of subjects, the Additive Approach was more successful than the Subdivision Approach in this rhythm reading task. Of particular interest was the fact that the Additive Approach prepared students to more successfully decode and perform syncopated rhythms seen only in the pre- and posttest. The research approach employed appears, with modification, to be a useful one that may successfully be employed in a larger project. Although the results of this particular study cannot be generalized to a larger population, the positive results indicate that further study is merited

Forced-air warming: a source of airborne contamination in the operating room?

Forced-air-warming (FAW) is an effective and widely used means for maintaining surgical normothermia, but FAW also has the potential to generate and mobilize airborne contamination in the operating room

Cortical lamina-dependent blood volume changes in human brain at 7T

Cortical layer-dependent high (sub-millimeter) resolution functional magnetic resonance imaging (fMRI) in human or animal brain can be used to address questions regarding the functioning of cortical circuits, such as the effect of different afferent and efferent connectivities on activity in specific cortical layers. The sensitivity of gradient echo (GE) blood oxygenation level-dependent (BOLD) responses to large draining veins reduces its local specificity and can render the interpretation of the underlying laminar neural activity impossible. The application of the more spatially specific cerebral blood volume (CBV)-based fMRI in humans has been hindered by the low sensitivity of the noninvasive modalities available. Here, a vascular space occupancy (VASO) variant, adapted for use at high field, is further optimized to capture layer-dependent activity changes in human motor cortex at sub-millimeter resolution. Acquired activation maps and cortical profiles show that the VASO signal peaks in gray matter at 0.8–1.6 mm depth, and deeper compared to the superficial and vein-dominated GE-BOLD responses. Validation of the VASO signal change versus well-established iron-oxide contrast agent based fMRI methods in animals showed the same cortical profiles of CBV change, after normalization for lamina-dependent baseline CBV. In order to evaluate its potential of revealing small lamina-dependent signal differences due to modulations of the input-output characteristics, layer-dependent VASO responses were investigated in the ipsilateral hemisphere during unilateral finger tapping. Positive activation in ipsilateral primary motor cortex and negative activation in ipsilateral primary sensory cortex were observed. This feature is only visible in high-resolution fMRI where opposing sides of a sulcus can be investigated independently because of a lack of partial volume effects. Based on the results presented here, we conclude that VASO offers good reproducibility, high sensitivity and lower sensitivity than GE-BOLD to changes in larger vessels, making it a valuable tool for layer-dependent fMRI studies in humans

Les variations géographiques de la santé au Québec : une analyse de l’enquête Santé Québec par aire homogène.

Le présent article propose une lecture de l'enquête Santé Québec, réalisée en 1987, à travers une grille géographique par aire homogène (ou aire sociale). On procède d'abord à l'élaboration de cette grille par aire homogène, puis on en décrit les caractéristiques géo-socio-économiques pour finalement en tracer le bilan sanitaire. Il ressort de cette lecture d'importantes disparités entre les aires homogènes, tant dans les déterminants de l'état de santé (consommation d'alcool, de tabac, activité physique et soutien social), que dans l'état de santé lui-même (diverses pathologies) ou encore dans les conséquences de cet état de santé (incapacité, recours aux services, médication). Cette lecture retrace les populations les plus vulnérables au Québec, c'est-à-dire les résidants des vieux centres-villes et de certains secteurs limitrophes d'agglomérations et de villes, des capitales régionales et de la métropole, ainsi que les résidants de l'arrière-pays et de certaines petites villes de la périphérie.This article proposes to analyse the Québec Health Survey — carried out in 1987 — by using a geographic grid that covers each homogenous area (or social area). First, the grid is elaborated in terms of homogenous areas followed by a description of the geo-socio-economic characteristics of each area, which, in the end, allows for assessing the heath situation in homogenous areas. This analysis brings to light major discrepancies between homogenous areas in such sectors as heath status determinants (alcohol and tobacco consumption, physical activity and social or community support), the actual state of heath (various pathologies) and the consequences that may be attributed to the state of heath (incapacity, recourse to services, medication...). The analysis focuses on Quebec's most vulnerable populations : the low-income residents of the old inner cities and of certain border areas of agglomerations and cities, as well as their counterparts in the regional capitals and in Metropolitan Montréal. Disadvantaged inhabitants of the hinterland and of certain small towns on the periphery are also considered in the analysis

Computational Thematic Analysis of Online Communities

Public health researchers can use thematic analysis to develop human understandings of health topics from the lived experiences discussed in online communities. However, thematic analyses of online communities are difficult to conduct because large data sets amplify the resource intensity and complexity of the common phases: Data Collection, Data Familiarization, Coding, and Theme Review. Researchers can manage this amplification by integrating computational techniques that facilitate scalable interaction with large data sets when they converge with tasks completed during a thematic analysis. My thesis’ research explored barriers to integrating computational techniques into thematic analysis through three research questions: RQ1. Could computational techniques be used within a thematic analysis to assist with the analysis of online communities’ data? RQ2. How might tools be developed to not require programming expertise when integrating computational techniques as part of thematic analysis tasks? RQ3. How does a computational thematic analysis that integrates computational techniques compare with a traditional manual thematic analysis? To address these questions, I used a three-staged approach where I first piloted integrating techniques in a thematic analysis of addiction recovery. I then designed artifacts based on my pilot experience that allow qualitative researchers without programming expertise to integrate techniques. Finally, I deployed my artifacts with public health researchers to explore integration’s impact on their real-world thematic analyses. During my Pilot Stage, I conducted a topic-guided thematic analysis of two Reddit addiction recovery communities. Performing this analysis contributed a demonstration of integrating Latent Dirichlet Allocation topic modelling, a computational technique, to guide my reflexive thematic analysis by sampling interesting places in online discussion data sets for coding. Additionally, I discussed how integration benefited my data familiarization by facilitating the identification of patterns while being limited due to balancing metric optimization with interpretive usefulness when creating topic models. In my Design Stage, I created my Computational Thematic Analysis Workflow and Computational Thematic Analysis Toolkit to build upon my pilot stage experiences and support qualitative researchers. My workflow provides researchers with guidance on planning a reflexive thematic analysis of online communities that integrates computational techniques. Similarly, my toolkit supports qualitative researchers by implementing computational techniques as reusable tools in a graphic user interface that integrates into thematic analyses without requiring programmer expertise. My Deploy Stage investigated the impact of integrating computational techniques by collaborating with public health researchers studying COVID-19 news article comments.The researchers independently performed two inductive thematic analyses, one of which used my Computational Thematic Analysis Toolkit. I then work with the researchers to compare their processes and results. From this comparison, I identified that integrating computational techniques to facilitate multiple data interactions aided the analysis by enabling different interpretations. Additionally, despite both analyses developing a convergent set of themes, computational technique integration had subtle influences leading to divergent analysis processes and coding approaches. The contributions from my three stages have collective implications for qualitative research, human-computer interaction, and public health. My work provides qualitative researchers with demonstrations and tools that support integrating computational techniques to research online communities. My research created a base workflow and toolkit that human-computer interaction practitioners can support and extend to facilitate the integration of computational techniques into qualitative methods. Additionally, I addressed calls in human-computer interaction research to include qualitative perspectives in work that impacts qualitative researchers. Finally, public health researchers can use my guidance and toolkit to manage the amplification of resource intensity and complexity to perform thematic analyses on the lived experiences discussed in online communities. As researchers identify online communities’ perspectives on new and existing health issues, they can de- velop health interventions that impact people represented by online communities