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Occupational Health and Industrial Hygiene Commons™

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2021

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Full-Text Articles in Occupational Health and Industrial Hygiene

Implementación De Políticas De Prevención Y Control De La Obesidad Infantil En Estados Unidos Y Latinoamérica: Lecciones Para La Investigación Y La Práctica Transfronterizas, Mireya Vilar-Compte, Rafael Perez-Escamilla, Elizabeth Rhodes, Olga L. Sarmiento, Camila Corvalan, Rachel Sturke, Susan Vorkoper Jan 2021

Implementación De Políticas De Prevención Y Control De La Obesidad Infantil En Estados Unidos Y Latinoamérica: Lecciones Para La Investigación Y La Práctica Transfronterizas, Mireya Vilar-Compte, Rafael Perez-Escamilla, Elizabeth Rhodes, Olga L. Sarmiento, Camila Corvalan, Rachel Sturke, Susan Vorkoper

Department of Public Health Scholarship and Creative Works

Aunque se han hecho avances en el desarrollo y aplicación a gran escala de inter-venciones eficaces contra la obesidad infantil, los retos siguen siendo importantes. Nuestro objetivo era comprender las causas del éxito de Estados Unidos y los países latinoamericanos en la implementación de políticas y programas (PYP) contra la obe-sidad e identificar oportunidades de mejora aplicando los principios de la ciencia de la implementación. Seleccionamos tres estudios de comparación de casos: (1) el etique-tado frontal en los envases de alimentos (México y Chile), (2) los programas de calles abiertas y calles para el juego (Colombia y Estados Unidos) y …


Classification Des Sols Et Sélection Des Systèmes D’Étançonnement Pour L’Excavation Des Tranchées : Résultats Des Essais Réalisés Au Laboratoire De Géotechnique De L’Université Laval – Annexe, Bertrand Galy, Denis Lebœuf, Omar Chaallal, André Lan Jan 2021

Classification Des Sols Et Sélection Des Systèmes D’Étançonnement Pour L’Excavation Des Tranchées : Résultats Des Essais Réalisés Au Laboratoire De Géotechnique De L’Université Laval – Annexe, Bertrand Galy, Denis Lebœuf, Omar Chaallal, André Lan

Rapports de recherche scientifique

Dans le cadre du projet « Classification des sols et sélection des systèmes d’étançonnement pour l’excavation des tranchées », des tranchées et des excavations de pleine grandeur ont été réalisées dans une argile sensible typique du Québec, à Louiseville. Ces aménagements ont permis d’évaluer et de valider la résistance et le comportement de systèmes d’étançonnement, grâce aux essais suivants :

  • Une excavation non soutenue de 5 m de profondeur à paroi verticale;
  • Une excavation non soutenue de 4,2 m de profondeur, à paroi talutée (pente de 1,6:1);
  • Une tranchée de 6 m de profondeur soutenue avec une boîte de tranchée …


Évaluation Des Méthodes D’Essai Pour Déterminer La Résistance Au Glissement Des Chaussures Sur Des Surfaces Glacées : Document Synthèse, Chantal Gauvin, Atena Roshan Fekr, Yue Li, Gordon Wong, Wayne Cheng, David Pearsall, Tilak Dutta Jan 2021

Évaluation Des Méthodes D’Essai Pour Déterminer La Résistance Au Glissement Des Chaussures Sur Des Surfaces Glacées : Document Synthèse, Chantal Gauvin, Atena Roshan Fekr, Yue Li, Gordon Wong, Wayne Cheng, David Pearsall, Tilak Dutta

Rapports de recherche scientifique

En saison hivernale, glisser sur la glace est l’un des principaux risques inhérents aux activités professionnelles exercées à l’extérieur. Alors que de nombreux travailleurs comptent sur leurs chaussures de travail pour les empêcher de glisser, ces derniers se retrouvent souvent devant un choix difficile quand vient le temps de sélectionner les meilleures bottes antidérapantes pour l’hiver. Des méthodes d’essai normalisées existent déjà pour évaluer le coefficient de friction (CdF) des chaussures sur des surfaces autres que la glace. Bien que l’appareil utilisé pour ces tests puisse être utilisé en tandem avec une machine qui permet de fabriquer des surfaces glacées …


Evaluation Of Test Methods For Determining Footwear Slip Resistance On Ice Surfaces, Chantal Gauvin, Atena Roshan Fekr, Yue Li, Gordon Wong, Wayne Cheng, David Pearsall, Tilak Dutta Jan 2021

Evaluation Of Test Methods For Determining Footwear Slip Resistance On Ice Surfaces, Chantal Gauvin, Atena Roshan Fekr, Yue Li, Gordon Wong, Wayne Cheng, David Pearsall, Tilak Dutta

Rapports de recherche scientifique

Slipping on ice is one of the main risks of outdoor occupational activities during winter. Ice and freezing rain were involved in 14% of slip, trip and fall (STF) accidents from 2014 to 2016 in Quebec. Many workers who perform outdoor activities rely on their boots to prevent them from slipping. However, choosing the best slip resistant footwear is challenging. Currently, there is no standard test method for evaluating slip resistance of footwear on ice surfaces. The SATRA STM 603 whole shoe tester is used in standard test methods (ASTM International, 2019b, F2913-19; International Organization for Standardization [ISO], 2019, 13287:2019) …


Transferts Interorganisationnels De Connaissances Issues D’Enquêtes D’Accident Du Travail, Cheikh Faye Jan 2021

Transferts Interorganisationnels De Connaissances Issues D’Enquêtes D’Accident Du Travail, Cheikh Faye

Rapports de recherche scientifique

La Commission des normes, de l'équité, de la santé et de la sécurité du travail (CNESST) est chargée de la gestion du régime québécois de la santé et sécurité du travail (SST). Elle a pour fonctions, notamment l’élaboration, la proposition et la mise en œuvre des politiques dans le domaine de la SST en vue de protéger les travailleurs et d’assurer une meilleure qualité des milieux de travail. À ce titre, la CNESST diligente systématiquement une enquête lorsque survient un accident du travail mortel ou grave à l’exception des accidents de la route et ceux concernant les travailleurs des entreprises …


Improving The Accuracy Of Occupational Hygiene Models Used To Estimate Worker Exposure To Solvent Vapours, Spéro Abattan, Stéphane Hallé, Daniel Drolet, Ali Bahloul, Patrick Eddy Ryan, Wejden Chouchene, Carlos Castro Ruiz, Jérôme Lavoué, Maximilien Debia Jan 2021

Improving The Accuracy Of Occupational Hygiene Models Used To Estimate Worker Exposure To Solvent Vapours, Spéro Abattan, Stéphane Hallé, Daniel Drolet, Ali Bahloul, Patrick Eddy Ryan, Wejden Chouchene, Carlos Castro Ruiz, Jérôme Lavoué, Maximilien Debia

Rapports de recherche scientifique

Chaque année, des travailleurs québécois subissent des effets sur leur santé après avoir été exposés à des substances chimiques, notamment à des solvants. La modélisation des expositions professionnelles occupe une place importante dans la prévention des risques. Cette recherche vise à étudier différents aspects de la modélisation pour estimer des expositions professionnelles à des vapeurs de solvants dans le but d’en améliorer la justesse de prédiction. Le travail de recherche a été effectué en deux volets. Grâce à la mise en œuvre de tests à petite échelle (volet I) et à échelle humaine (volet II), les travaux présentés dans cette …


Les Lésions Professionnelles De La Coiffe Des Rotateurs De L'Épaule : Optimiser La Prise En Charge Des Travailleurs Et Favoriser Le Retour Au Travail, François Desmeules, Jean-Sébastien Roy, Joseph-Omer Dyer, Pierre Frémont, Clermont Dionne, Joy C. Macdermid, Michel Tousignant, Annie Rochette Jan 2021

Les Lésions Professionnelles De La Coiffe Des Rotateurs De L'Épaule : Optimiser La Prise En Charge Des Travailleurs Et Favoriser Le Retour Au Travail, François Desmeules, Jean-Sébastien Roy, Joseph-Omer Dyer, Pierre Frémont, Clermont Dionne, Joy C. Macdermid, Michel Tousignant, Annie Rochette

Rapports de recherche scientifique

Les atteintes musculosquelettiques de l’épaule sont fréquentes chez les travailleurs. En plus d’affecter leur qualité de vie, elles entraînent une augmentation de l’absentéisme et une diminution de la productivité, et peuvent conduire à une retraite anticipée. Pour l’année 2017, la province de Québec a enregistré 2,1 milliards de dollars en prestations en lien avec des lésions professionnelles. Environ 8 % de ces réclamations étaient dues à une lésion touchant l’articulation de l’épaule (CNESST, 2018).

Les lésions de la coiffe des rotateurs (CR) sont les affections les plus rencontrées chez les travailleurs présentant une atteinte à l’épaule. Présentement, les cliniciens ne …


Les Lésions Professionnelles De La Coiffe Des Rotateurs De L'Épaule : Optimiser La Prise En Charge Des Travailleurs Et Favoriser Le Retour Au Travail : Matériel Supplémentaire, François Desmeules, Jean-Sébastien Roy, Joseph-Omer Dyer, Pierre Frémont, Clermont Dionne, Joy C. Macdermid, Michel Tousignant, Annie Rochette Jan 2021

Les Lésions Professionnelles De La Coiffe Des Rotateurs De L'Épaule : Optimiser La Prise En Charge Des Travailleurs Et Favoriser Le Retour Au Travail : Matériel Supplémentaire, François Desmeules, Jean-Sébastien Roy, Joseph-Omer Dyer, Pierre Frémont, Clermont Dionne, Joy C. Macdermid, Michel Tousignant, Annie Rochette

Rapports de recherche scientifique

Voir également :


Développement, Validation Et Application D’Une Méthode Quantitative Pour Évaluer Les Déplacements Des Pieds Des Manutentionnaires, André Plamondon, Antoine Muller, Xavier Robert-Lachaîne, Jasmin Vallée-Marcotte, Denys Denis, Christian Larue, Hakim Mecheri, Philippe Corbeil Jan 2021

Développement, Validation Et Application D’Une Méthode Quantitative Pour Évaluer Les Déplacements Des Pieds Des Manutentionnaires, André Plamondon, Antoine Muller, Xavier Robert-Lachaîne, Jasmin Vallée-Marcotte, Denys Denis, Christian Larue, Hakim Mecheri, Philippe Corbeil

Rapports de recherche scientifique

Les troubles musculosquelettiques lors d’activités de manutention manuelle (MM) sont encore très présents dans nos milieux de travail. Les facteurs de risque biomécanique les plus souvent associés aux douleurs au dos incluent la manutention manuelle, les répétitions excessives, les torsions du tronc et les levers de charges lourdes. Plusieurs déterminants d’une tâche de MM ont été étudiés pour déterminer leur importance sur l'exposition physique des travailleurs. Par exemple, la hauteur de la charge, la distance initiale de la charge par rapport au corps, la masse soulevée et la vitesse du soulèvement sont tous des déterminants liés à la …


Confort Thermique Et Mobilité Des Policiers Motards Lors Du Port Du Gilet Pare-Balles : Une Analyse Ergonomique, Steve Vezeau, Alain S. Comtois, Victoria Budico Jan 2021

Confort Thermique Et Mobilité Des Policiers Motards Lors Du Port Du Gilet Pare-Balles : Une Analyse Ergonomique, Steve Vezeau, Alain S. Comtois, Victoria Budico

Rapports de recherche scientifique

Plusieurs études démontrent une diminution importante des risques de décès chez les agents de police qui portent un gilet pare-balles (GPB). Cependant, certains patrouilleurs demeurent réticents à le revêtir à cause des inconforts qu’il engendre sur les plans thermiques et de la mobilité; ceux-ci représentent 8 % de l’ensemble des agents de police et 47 % des agents motards, ce qui accroît les risques pour leur sécurité. Les agents des unités motocyclistes seraient donc parmi les plus exposés, notamment en raison de conditions particulières telles que le travail à l’extérieur, la proximité d’une source de chaleur (moteur), le port de …


Mise Au Point D’Une Méthode De Mesure Objective De L’Effet D’Occlusion Basée Sur La Voix, Hugues Nélisse, Hugo Saint-Gaudens, Franck Sgard, Olivier Doutres Jan 2021

Mise Au Point D’Une Méthode De Mesure Objective De L’Effet D’Occlusion Basée Sur La Voix, Hugues Nélisse, Hugo Saint-Gaudens, Franck Sgard, Olivier Doutres

Rapports de recherche scientifique

Lors de l’utilisation de protecteurs auditifs ou de prothèses auditives, le fait d’obstruer le canal auditif peut engendrer un effet indésirable et désagréable, appelé « effet d’occlusion », qui se manifeste notamment par la sensation que notre propre voix sonne différemment, avec de basses fréquences amplifiées, qu’elle est distordue. L’effet d’occlusion est souvent considéré comme une source d’inconfort qui entraîne parfois les utilisateurs de protecteurs ou de prothèses à mal les utiliser ou encore à simplement les retirer. Dans le cas des travailleurs, par exemple, le retrait des protecteurs auditifs peut les exposer à des niveaux de bruits potentiellement dangereux, …


Safety Of Mine Hoists Controlled By Electronic Programmable Systems: Appendix, Laurent Giraud, Bertrand Galy, Louis Germain, Réal Bourbonnière Jan 2021

Safety Of Mine Hoists Controlled By Electronic Programmable Systems: Appendix, Laurent Giraud, Bertrand Galy, Louis Germain, Réal Bourbonnière

Rapports de recherche scientifique

Avec l’évolution rapide des nouvelles technologies et la recherche de rentabilité des investissements, les systèmes électroniques programmables (PES) ont été implantés progressivement dans toutes les industries. Le secteur minier n’échappe pas à cette tendance et au fil du temps presque toutes les mines du Québec ont équipé leurs machines d’extraction de tels systèmes. Toutefois, l’introduction de ces nouvelles technologies, requises pour l’amélioration de la productivité minière au Québec, doit aller de pair avec la santé et la sécurité des travailleurs.

Une recension des machines d’extraction en service en 2016 au Québec a montré que le portrait général de l’industrie a …


Qualitative Fitting Characteristics Of Elastomeric Half Face-Piece Respirators Using Isoamyl Acetate Agent, Anahita Fakherpour, Mehdi Jahangiri, Sean Banaee Jan 2021

Qualitative Fitting Characteristics Of Elastomeric Half Face-Piece Respirators Using Isoamyl Acetate Agent, Anahita Fakherpour, Mehdi Jahangiri, Sean Banaee

Community & Environmental Health Faculty Publications

To examine the fitting testing of elastomeric half face-piece respirators (EHRs), a total of 41 candidates were randomly assigned into seven EHRs equipped with organic vapor (OV) cartridges which were commonly used in the Iranian industrial workplaces. The qualitative fitting into the facial dimensions was assessed using the Allegro Isoamyl Acetate fit test kit. While the studied EHRs showed very low passing fit testing rates, the 3M, AoSafety (Medium), and AoSafety (Large) had the highest passing rates with 22.0%, 14.60%, and 9.76%, respectively. The AoSafety ‎(All sizes) delivered a higher passing fit test rate than the 3M brand (29.30 vs. …


Evaluating The Incidence Of Melanoma And Lung Cancer Of Current And Former Active-Duty U.S. Military Who Were Deployed In Support Of Operation Enduring Freedom And Operation Iraqi Freedom, Brian Kovacic Jan 2021

Evaluating The Incidence Of Melanoma And Lung Cancer Of Current And Former Active-Duty U.S. Military Who Were Deployed In Support Of Operation Enduring Freedom And Operation Iraqi Freedom, Brian Kovacic

Theses and Dissertations--Epidemiology and Biostatistics

The incidence of melanoma and lung cancer has been gradually increasing in the United States over the past three decades with the reputed causes due to etiological and environmental exposures, and tobacco usage. There has been concern that melanoma and lung cancer incidence among military personnel may be associated with deployment to environments with intense sun exposure and increased smoking rates due to post-traumatic stress disorder. The aim of this study was to examine associations between deployment in support of Operation Enduring Freedom (OEF) or Operation Iraqi Freedom (OIF), from 2001 through 2015, with subsequent melanoma and lung cancer incidence. …


Injuries Among Distillery Workers: Workers' Compensation First Reports Of Injury, 2010-2019, Mira Hali Mirzaian Jan 2021

Injuries Among Distillery Workers: Workers' Compensation First Reports Of Injury, 2010-2019, Mira Hali Mirzaian

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

AIMS: To identify the most frequent type, nature, and cause of work-related injury amongst distillery workers as well as contributing factors to the injurious event in an effort to inform potential intervention.

METHODS: Workers’ Compensation First Reports of Injury (FROI) from the years 2010-2019 (N=974) were obtained. Variables were created for ‘occupational category’ and ‘accident description’ to assist in the elucidation of the injurious event. The Ratchet Circular Scan Test was used to assess seasonal variation in injury. Kernal Density Analysis was conducted to assess rates of injury by calendar year.

RESULTS: Amongst injured distillery workers, 908 of the injuries …


Influence Of The Inherent Safety Principles On Quantitative Risk In Process Industry: Application Of Genetic Algorithm Process Optimization (Gapo), Mehdi Jahangiri, Abolfazl Moghadasi, Mojtaba Kamalinia, Farid Sadeghianjahromi, Sean Banaee Jan 2021

Influence Of The Inherent Safety Principles On Quantitative Risk In Process Industry: Application Of Genetic Algorithm Process Optimization (Gapo), Mehdi Jahangiri, Abolfazl Moghadasi, Mojtaba Kamalinia, Farid Sadeghianjahromi, Sean Banaee

Community & Environmental Health Faculty Publications

Inherent safety (IS) refers to a set of measures that enhance the safety level of processes and equipment, rendering additional equipment and/or add-ons. The early design phase of processes is suited best for implementation of IS strategies as some of such strategies either are impossible to be implemented at the operation phase or substantially increase costs. The purpose of this study is to present a new approach called genetic algorithm process optimization (GAPO), by which processes can be made inherently safer even at the operation phase. This study simulates the IS principle, assessing its impact on quantitative risk and the …


Comparing Melatonin Use To Bright Light Therapy In Mitigating Cardiovascular Effects Due To Shift Work Disorder In Shift Working Adults, Alexandra Hirt Jan 2021

Comparing Melatonin Use To Bright Light Therapy In Mitigating Cardiovascular Effects Due To Shift Work Disorder In Shift Working Adults, Alexandra Hirt

Capstone Showcase

Introduction: Circadian Misalignment is a term used to describe a mismatch in one’s physiologically determined sleep patters and their actual sleep wake behaviors. Shift workers often end up in a vicious cycle of being in a state of chronic circadian misalignment, which then can lead to health problems, extreme fatigue, and insomnia, known as Shift Work Disorder (SWD).This has been studied in night shift workers who, when compared to daytime workers, have an increased risk of developing metabolic syndrome, type 2 diabetes, and coronary heart disease.These results are not dependent on any behavioral risk factors, such as smoking and poor …


Seaweeds Polysaccharides In Active Food Packaging: A Review Of Recent Progress, Carina Dietz, Shubham Sharma, Amit Jaiswal, Swarna Jaiswal Jan 2021

Seaweeds Polysaccharides In Active Food Packaging: A Review Of Recent Progress, Carina Dietz, Shubham Sharma, Amit Jaiswal, Swarna Jaiswal

Articles

Background

Due to its short lifetime, food packaging leads to a rapid accumulation of plastic in our surroundings and thereby also has a huge impact on environmental pollution. To reduce these effects and create a more sustainable approach towards food packaging, biodegradable and biobased polymers have been developed and are emerging on the market.

Scope and approach

This review provides the current state of research regarding active packaging and the incorporation of seaweed into food packaging. Further, it summarises the resulting consequences of the seaweed incorporation on mechanical, physical, thermal, antioxidant, antimicrobial, and chemical properties, as well as the release …


Evaluating Compassion Satisfaction And The Risk Of Compassion Fatigue Among Those Working At Non-Human Primate Sanctuaries And Wildlife Centers, Madalyn Rantala Jan 2021

Evaluating Compassion Satisfaction And The Risk Of Compassion Fatigue Among Those Working At Non-Human Primate Sanctuaries And Wildlife Centers, Madalyn Rantala

All Master's Theses

Compassion fatigue, an occupational risk commonly associated with caregiving professions, can have adverse effects for individual employee wellbeing, organizational productivity, and the quality of care that patients receive. Within animal-care worker samples, previous research suggests that around 25 percent of employees are at a high risk of developing compassion fatigue (i.e., experiencing burnout and secondary traumatic stress concurrently). To my knowledge, this thesis is the first study to explore compassion fatigue within the primate sanctuary field. Thirty-nine eligible participants completed an online survey that probed professional quality of life via the ProQOL 5, perceived workplace support via the Trauma-Informed Organizational …


The Effects Of The Traditional Scaling Technique Versus A Modified Scaling Technique On Muscle Activity And Pinch Force Generation: A Pilot Study, Jessica R. Suedbeck, Cortney Armitano-Lago Jan 2021

The Effects Of The Traditional Scaling Technique Versus A Modified Scaling Technique On Muscle Activity And Pinch Force Generation: A Pilot Study, Jessica R. Suedbeck, Cortney Armitano-Lago

Dental Hygiene Faculty Publications

Purpose: Dental hygienists perform precision instrumentation tasks repetitively throughout the workday, placing them at increased risk for developing a musculoskeletal disorder. The purpose of this pilot study was to determine differences in muscle activity and pinch force generation between the traditional scaling technique and a modified scaling technique.

Methods: A convenience sample of dental hygienists (n=12) acted as their own controls in this counterbalance-designed pilot study. Muscle activity and pinch forces were assessed while participants performed traditional and modified scaling techniques with designated instruments on artificial calculus applied to the lower left quadrant of a typodont, for a period of …


Promote Ergonomic Health, Amber W. Hunt, Kimberly B. Lintag-Nguyen Jan 2021

Promote Ergonomic Health, Amber W. Hunt, Kimberly B. Lintag-Nguyen

Dental Hygiene Faculty Publications

A wide array of interventions and therapies is available to help dental hygienists stay healthy and reduce pain.


Electromyographical Assessments Of Recommended Neck And Trunk Positions For Dental Hygienists, Margaret F. Lemaster, Kyle J. Kelleran, Maryam Moeini, Daniel M. Russell Jan 2021

Electromyographical Assessments Of Recommended Neck And Trunk Positions For Dental Hygienists, Margaret F. Lemaster, Kyle J. Kelleran, Maryam Moeini, Daniel M. Russell

Rehabilitation Sciences Faculty Publications

Purpose: Dental professionals are recommended to limit neck and trunk flexion to within 20° of a neutral (0°) body posture, however empirical support for the recommendations is lacking. The purpose of this study was to determine whether there are differences in muscle workload between a range of neck and trunk postures in a population of dental hygiene students.

Methods: Fifteen first semester senior dental hygiene students with no history of neck and trunk injury volunteered to participate. Surface electromyography was used to record muscle activity from two neck extensors muscles, cervical erector spinae (CES) and upper trapezius (UT), and two …


Hands And Health: Quantifying Occupational Exposures And Implications Of Disability, Sueann R. Woods Jan 2021

Hands And Health: Quantifying Occupational Exposures And Implications Of Disability, Sueann R. Woods

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: Hand grip strength (HGS) has been negatively correlated with both biologic, cognitive, and mental health markers. Aim one investigated how occupational metabolic equivalents (OMETs), impacted HGS. Aim two investigated lost time from work and the association with HGS. Finally, aim three investigated the health outcomes of workers’ compensation claimants who have lost time from work, following diagnosis of CTS.

Results:HGS was positively associated with OMET (rs = 0.078, p = 0.009). Linear regression model demonstrated a statistically significant association between HGS and OMETs, F(1, 31) = 9.735, p = .001. Aim two found that all occupation groups had …


Characterization Of Unintentionally Released Nanometric Particles In Various Workplaces, Maximilien Debia, Cyril Catto, Alan Fleck, Jean-Philippe Masse, Gilles L'Espérance, Brigitte Roberge Jan 2021

Characterization Of Unintentionally Released Nanometric Particles In Various Workplaces, Maximilien Debia, Cyril Catto, Alan Fleck, Jean-Philippe Masse, Gilles L'Espérance, Brigitte Roberge

Rapports de recherche scientifique

Les particules nanométriques émises non intentionnellement (PNNI) en milieux de travail présentent un potentiel de toxicité pour les travailleurs. Elles montrent une importante capacité de se déposer dans le système respiratoire et se distinguent par leur grande surface spécifique et un potentiel élevé d’inflammation pulmonaire. Cette étude vise à caractériser les PNNI émises dans six milieux de travail à travers un large éventail d’indicateurs.

Les concentrations ont été évaluées selon les métriques numériques et massiques à l’aide d’une panoplie d’instruments à lecture directe (ILD). Des mesures intégrées ont aussi été effectuées en tenant compte du type de contaminant spécifique à …


Occupational Exposure To Antineoplastic Drugs: What About Hospital Sanitation Personnel?, France Labrèche, Capucine Ouellet, Brigitte Roberge, Nicolas J Caron, Ahmed Yennek, Jean-François Bussières Jan 2021

Occupational Exposure To Antineoplastic Drugs: What About Hospital Sanitation Personnel?, France Labrèche, Capucine Ouellet, Brigitte Roberge, Nicolas J Caron, Ahmed Yennek, Jean-François Bussières

Études primaires

Objective

Occupational exposure to antineoplastic drugs (ANPs) occurs mainly through dermal contact. Our study was set up to assess the potential exposure of hospital sanitation (HS) personnel, for whom almost no data are available, through contamination of surfaces they regularly touch.

Methods

In the oncology departments of two hospitals around Montreal, surface wipe samples of 120–2000 cm2 were taken at 10 sites cleaned by the HS personnel and five other sites frequently touched by nursing and pharmacy personnel. A few hand wipe samples were collected to explore skin contamination. Wipes were analyzed by ultra-performance liquid chromatography tandem–mass spectrometry for …


Leakage Versus Material Filtration In Barrier Facemask Efficiency, Ali Bahloul, Clothilde Brochot, Barbara Layne Jan 2021

Leakage Versus Material Filtration In Barrier Facemask Efficiency, Ali Bahloul, Clothilde Brochot, Barbara Layne

Études primaires

The World Health Association and many governmental agencies recommend the wearing of facemasks by the general public to prevent the spread of COVID-19. It is believed that masks can significantly protect others and may offer some protection to the wearer. Although there are standards for FFRs, surgical masks, and recently for barrier face coverings, they all indicate the level of protection for the wearer. However, testing facial masks not at the point of inhalation, but at the source, the exhale, offers a new perspective on how to impede particle emissions. In this paper, the experimental results show that, although the …


On The Removal Of The Open Earcanal High-Pass Filter Effect Due To Its Occlusion: A Bone-Conduction Occlusion Effect Theory, Kevin Carillo, Olivier Doutres, Franck Sgard Jan 2021

On The Removal Of The Open Earcanal High-Pass Filter Effect Due To Its Occlusion: A Bone-Conduction Occlusion Effect Theory, Kevin Carillo, Olivier Doutres, Franck Sgard

Études primaires

The occlusion effect is commonly experienced by in-ear device wearers as an increased loudness sensation of bone-conducted low frequency sounds. A widespread theory proposed by Tonndorf and based on a simplified electro-acoustic model describes the phenomenon as the removal of the open earcanal high-pass filter effect due to a perfect or partial occlusion. However, this filter has not been clearly defined and several ambiguities remain. Revisiting the model, a second order high-pass filter effect for the volume velocity transferred between the earcanal wall and the eardrum is highlighted. This filter remains for partial occlusion but vanishes for perfect occlusion. In …


Role And Responsibilities Of Supervisors In The Sustainable Return To Work Of Workers Following A Work-Related Musculoskeletal Disorder, Iuliana Nastasia, Marie-France Coutu, Romain Rives, Jessica Dubé, Sarah Gaspard, Audrey Quilicot Jan 2021

Role And Responsibilities Of Supervisors In The Sustainable Return To Work Of Workers Following A Work-Related Musculoskeletal Disorder, Iuliana Nastasia, Marie-France Coutu, Romain Rives, Jessica Dubé, Sarah Gaspard, Audrey Quilicot

Études primaires

Purpose Supervisors play an important role during the return to work (RTW) of injured workers. Yet little research has been done on the actions associated with this role or the contexts in which they are taken. The purpose of this study was to develop courses of action to promote supervisors’ involvement in the process aimed at achieving sustainable RTW for workers following a work-related musculoskeletal disorder (MSD), and to verify their pertinence, feasibility, and applicability in practice. Methods A two-phase qualitative method was used. (1) Secondary content analysis of 46 interviews of 14 workers post-MSD and 32 other actors in …


Principle Of An Acoustical Method For Estimating The Centroid Position Of The Earcanal Wall Normal Velocity Induced By Bone-Conducted Stimulation: Numerical Evaluation, Kevin Carillo, Olivier Doutres, Franck Sgard Jan 2021

Principle Of An Acoustical Method For Estimating The Centroid Position Of The Earcanal Wall Normal Velocity Induced By Bone-Conducted Stimulation: Numerical Evaluation, Kevin Carillo, Olivier Doutres, Franck Sgard

Études primaires

The occlusion effect is commonly experienced as the altered perception of one’s own physiological noise when the earcanal entrance is blocked. Objectively, this phenomenon corresponds to an acoustic pressure increase in the occluded earcanal. The occlusion effect originates from the earcanal wall normal vibration and depends on the spatial distribution of the latter. At low frequencies, this spatial distribution can be characterized by the position of its centroid along the earcanal middle axis. This paper describes the principle of an acoustical method for estimating this centroid position at low frequencies. The proposed method consists in measuring the eardrum acoustic pressure …


The Effect Of Extensible And Non-Extensible Lumbosacral Orthoses On Anticipatory Postural Adjustments In Participants With Low Back Pain And Healthy Controls, Christian Larivière, Richard Preuss Jan 2021

The Effect Of Extensible And Non-Extensible Lumbosacral Orthoses On Anticipatory Postural Adjustments In Participants With Low Back Pain And Healthy Controls, Christian Larivière, Richard Preuss

Études primaires

Background

Wearing a lumbosacral orthosis (LSO) is known to influence spine mechanics, but less is known about how LSOs affect motor control. Whether the use of a LSO can negatively affect motor control of the lumbar spine is still under debate.

Objective

The current study examined the immediate effects of two flexible LSOs (extensible and non-extensible) on the anticipatory postural adjustments that prepare the spine for a predictable perturbation.

Design

A comparative study using a repeated measures design in a laboratory setting.

Methods

Healthy controls (n = 20) and participants with low back pain (n = 40) performed a rapid …