Occupational Health and Industrial Hygiene Commons^™

Apparent Total Evaporative Resistance For Clothing Ensembles At High Heat Stress Levels, Patrick Rodriguez

USF Tampa Graduate Theses and Dissertations

Donning protective clothing for mitigation of hazard from chemical agents poses a problem in the form of heat stress. When choosing protective clothing, many factors must be taken into account including insulative properties and evaporative resistance. This study calculated and compared R_e,T,a for three clothing ensembles at levels of heat stress past the level of compensation for heat gain to determine if R_e,T,a values varied or remained the same with changes in heat stress level. A three-way mixed model analysis of variance demonstrated significant differences for estimated R_e,T,a values among ensembles, heat stress levels and interactions among …

Sharps Injuries In Medical Training: Higher Risk For Residents Than For Medical Students, Rachel Williams

USF Tampa Graduate Theses and Dissertations

Because of their relative inexperience in performing procedures and handling sharps devices, medical students and resident physicians are considered to be at high risk for sharps injuries. A higher rate of sharps injuries for medical trainees implies a higher risk for occupationally-acquired infection with bloodborne pathogens and may have financial and legal implications for training institutions. This study examines the prevalence of sharps injuries among US medical students and resident physicians. A systematic review of the literature yielded 10 studies that gave data on sharps injuries for US medical students or residents, and those data were combined with data from …

Apparent Total Evaporative Resistance Values From Human Trials Over A Range Of Heat Stress Levels, Brian Grace

USF Tampa Graduate Theses and Dissertations

Clothing can influence heat stress depending on the design and its ability to act as a barrier. The progressive heat stress protocol permitted the collection of data to empirically estimate the apparent total evaporative resistance (R_e,T,a). Five different clothing ensembles were evaluated, which included work clothes, cotton coveralls, and three limited-use protective clothing ensembles including a pthesis-barrier ensemble, (Tyvek^® 1424), water-barrier, vapor-permeable ensemble (NexGen^® LS 417), and a vapor-barrier ensemble (Tychem QC^®). The study design called for three metabolic level's: low, moderate, and high (L, M, & H) and three heat stages: compensable, transitional, …

Apparent Total Evaporative Resistance Values From Human Trials Over A Range Of Metabolic And Heat Stress Levels, Matthew David Dooris

USF Tampa Graduate Theses and Dissertations

Failure to maintain thermal equilibrium can cause uncontrollable increases in body core temperature beyond critical upper limits. In selecting clothing, consideration must be given to the heat transfer properties of clothing that may restrict the cooling capacity of the human body under heat stress conditions, most importantly, apparent total evaporative resistance (R_e,T,_a). This study calculated and compared R_e,T,_a for five clothing ensembles under varying heat stress conditions, including three relative humidity (RH) levels and three stages of heat stress to determine if R_e,T,_a values varied or remained the same with …

Validation Of The Usf Safe Exposure Time Equation For Heat Stress, Arden Bruce Andersen

USF Tampa Graduate Theses and Dissertations

Heat stress conditions are prevalent in the working environment around the world. Often they are not readily engineered out. Administrative controls and, in extreme/toxic environments, personal protective gear are the means available to protect workers. For every combination of metabolic work rate, clothing ensemble and environmental WBGT, there is a time of exposure threshold, beyond which the worker can no longer compensate for the heat stress, and signs and symptoms of heat strain appear. Increasingly, worker environments require specialty clothing either for worker protection or to maintain a clean/sanitary environment. Prior to the publication of the USF safe exposure time …

Évaluation De L’Implantation Des Conseils De Sécurité Par Les Usagers : Le Cas Du Guide De L’Utilisateur Relatif À La Sécurité Des Convoyeurs : Phase Exploratoire, Lise Desmarais, Laurent Giraud, Jennifer Bélanger, Julie Trépanier

Rapports de recherche scientifique

En 2003, l'IRSST et la CSST publiaient un document intitulé Sécurité des convoyeurs à courroie : généralités, protection contre les phénomènes dangereux : guide de l'utilisateur, pour favoriser la réduction du nombre d'accidents, souvent graves, reliés à l'utilisation de ces appareils dans plusieurs secteurs industriels. Tiré à 13 000 exemplaires, ce guide propose une série de mesures visant à sécuriser au maximum l'usage et l'entretien des convoyeurs. Afin d’avoir une meilleure compréhension du transfert de connaissances, les auteurs ont évalué le degré d'appropriation et d'application, par les milieux de travail, des conseils de prévention énoncés dans ce guide. Ils …

Exposition Au Béryllium Des Travailleurs De La Transformation D'Aluminium Et Du Magnésium : Évaluation Des Paramètres De Surveillance Environnementale, Chantal Dion, Stéphanie Viau, André Dufresne, Yves Cloutier, Guy Perrault

Rapports de recherche scientifique

En 1999, on a constaté un nombre important de réclamations pour des maladies professionnelles reliées à l’exposition au béryllium (Be). Le réseau de la santé mène depuis des interventions dans des établissements de secteurs d’activités ciblés afin de mieux caractériser cette exposition dans ces milieux et d’estimer le nombre de travailleurs potentiellement à risque. C’est dans ce contexte que les auteurs ont exploré la possibilité de suggérer un paramètre de l’exposition au Be, mieux relié à la sensibilisation à ce métal que la mesure présentement utilisée. Les opérations dans les secteurs prioritaires devraient permettre d’y cerner les niveaux d’exposition, de …

La Prévention Des Intoxications Dans Les Silos À Fourrage, Ali Bahloul, Brigitte Roberge, Nicole Goyer, Mauricio Chavez, Marcelo Reggio

Rapports de recherche scientifique

Le fourrage conservé dans des silos à tour conventionnels subit une fermentation. Or, ce processus génère des gaz toxiques à des concentrations susceptibles de causer des intoxications graves, pouvant entraîner la mort. En raison de l’insuffisance d’oxygène et de la présence de ces gaz, il est difficile de déterminer le moment où l’atmosphère interne est salubre. La ventilation demeurant le meilleur moyen d'assurer la salubrité de ces espaces clos, les auteurs ont documenté la période critique de la fermentation du fourrage et de la production de gaz toxiques dans une situation spécifique. Ils ont ensuite formulé des recommandations sur la …

Efikasi Diri, Pusat Kendali, Dan Persepsi Tenaga Kerja Sebagai Prediktor Pencapaian Prestasi Kesehatan Dan Keselamatan Kerja, Iwan Muhamad Ramdan

Kesmas

Penelitian ini bertujuan untuk mengetahui apakah efikasi diri, pusat kendali, dan persepsi tenaga kerja dapat dijadikan prediktor yang akurat untuk memprediksi pencapaian prestasi kesehatan dan keselamatan kerja (K3), serta untuk menguji apakah model pencapaian prestasi K3 yang disusun dengan melibatkan interaksi tenaga kerja dengan lingkungannya cukup tepat. Dengan pendekatan cross sectional, penelitian dilakukan terhadap 200 orang responden pada perusahaan kayu di Kalimantan Timur. Variabel bebas terdiri dari efikasi diri, pusat kendali, dan persepsi tenaga kerja. Variabel tergantung yaitu prestasi K3, sedangkan variabel moderator adalah lingkungan fisik dan kimia kerja. Analisis data menggunakan structural equation model (SEM). Hasil penelitian menunjukan efikasi …

Service Technician Working Alone Dies After Being Assaulted, Kentucky Injury Prevention And Research Center

Fatality Case Reports--Other

One late fall evening in 2009, a 53 year-old male technician was working alone at a repair shop. At approximately 9:45 PM, the technician returned to the shop with his dinner from a nearby fast-food establishment. He spread his dinner on the work bench and began eating when apparently he was attacked from behind. His attacker used a knife and cut the technician’s carotid artery and jugular vein on the left side of his neck. The attacker fled, and the technician used a cell phone to call 911, emergency medical services (EMS). When EMS arrived, they found the technician dead …

Manutention : Comparaison Des Façons De Faire Entre Les Experts Et Les Novices, André Plamondon, Denys Denis, Sophie Bellefeuille, Alain Delisle, Maud Gonella, Erik Salazar, Denis Gagnon, Christian Larivière, Marie St-Vincent, Iuliana Nastasia

Rapports de recherche scientifique

Il a déjà été démontré que des manutentionnaires d’expérience, reconnus par leurs collègues comme étant des experts, ont développé des façons de faire différentes de celles des novices qui pourraient être à la fois sécuritaires et plus efficientes. Les auteurs croient que ces façons de faire pourraient inspirer l’élaboration de programmes de formation mieux adaptés au travail. Pour les fins de cette étude des experts en manutention et des travailleurs novices ont été invités à reproduire en laboratoire leurs façons de faire dans des conditions de travail variées. Cela a permis aux chercheurs de recueillir des données biomécaniques et de …

Foreign-Born Semi Driver Dies After Driving Over Embankment, Kentucky Injury Prevention And Research Center

Fatality Case Reports--Motor Vehicle

One summer morning in 2009, at approximately 11:30 AM, a 41 year-old male, long-haul, semi tractor-trailer driver drove off an interstate highway, over a guardrail, and continued into a wooded ravine. His trailer was empty and he was travelling to pick up a load of retail goods. The trailer disengaged from the tractor, the fuel tanks ruptured, the tractor overturned and caught fire. As the tractor overturned, the driver was ejected. A passing motorist called emergency medical (EMS) services; EMS arrived and found the driver dead at the scene.

To prevent future occurrences of similar incidents, the following recommendations have …

Persepsi Risiko Berkendara Dan Perilaku Penggunaan Sabuk Keselamatan Di Kampus Universitas Indonesia, Depok, Ing Kurnia Salihat, L. Meily Kurniawidjaja

Kesmas

Kematian dan cedera akibat kecelakaan lalu lintas telah menjadi masalah kesehatan masyarakat di seluruh dunia termasuk Indonesia. Di lingkungan Universitas Indonesia, setiap tahun terjadi peningkatan kejadian kecelakaan. Penelitian ini bertujuan melihat hubungan antara persepsi risiko keselamatan berkendara dengan perilaku penggunaan sabuk keselamatan pada mahasiswa Universitas Indonesia. Penelitian ini menggunakan pendekatan semi kuantitatif dan desain penelitian potong lintang. Partisipan adalah 98 mahasiswa Universitas Indonesia di Kampus Depok, berusia 18-25 tahun yang mengendarai kendaraan sendiri. Faktor internal yang membentuk persepsi risiko keselamatan berkendara secara bermakna adalah pengalaman (nilai p = 0,000) dan kepercayaan (nilai p = 0,008), sedangkan faktor eksternal yang signifikan …

Conditions D’Intégration Des Nouveaux Travailleurs Dans Le Secteur Minier : Une Étude Exploratoire, Sylvie Ouellet, Élise Ledoux, Esther Cloutier, Pierre-Sébastien Fournier

Rapports de recherche scientifique

Cette étude de cas, menée dans deux entreprises minières, a permis de confirmer les défis de recrutement et d’intégration des nouveaux travailleurs que doivent relever les entreprises : l’une d’elles a dû renouveler 72 % de sa main-d’œuvre entre 2003 et 2008. Des mesures (rencontres d’information, formation sur les aspects de sécurité et compagnonnage) ont été mises en place pour accueillir et intégrer ces travailleurs. Or, la transmission des savoirs de métier repose essentiellement sur les bonnes intentions et les habiletés de communication des travailleurs expérimentés, ainsi que sur les conditions de formation ou de travail. Certaines de ces conditions …

Workers Killed While Collecting Solid Waste, Kentucky Injury Prevention And Research Center

Kentucky Haz Alerts--Motor Vehicle

To prevent solid waste collection injuries:

• An applicable worker safety program should be established
• Before the solid waste truck is moved, visible hand signal communication between the driver and tipper should be established
• A standard operating procedure (SOP) should be established for stacking dumpsters as a result of a job hazard analysis
• A drug testing program should be incorporated in a worker safety program
• Pre-trip and post-trip vehicle inspections should be performed
• An ANSI ISEA 107-1999 safety vest should be worn at all times when on duty
• Do not ride on the steps if the truck is going faster than …

The Effect Of Handle Characteristics Of A Hammer Stapler On Biomechanical And Physiological Response, Wayne Latta

Theses

Frequent and prolonged use of an improperly designed hand tool not only affects productivity but may also cause painful symptoms which, if left untreated, can develop into chronic musculoskeletal disorders (MSDs). This study was undertaken to assess the effects of ergonomic guidelines related to grip characteristics of a hammer stapler. Specifically, surface composition, shape, and angle of grip were investigated. Three commercially available hammer staplers were selected for this study. Tool #1 had a basic grip design, Tool #2 had a somewhat improved grip design, and Tool #3 incorporated most of the ergonomic design guidelines in terms of grip surface, …

Effectiveness Of Safety Training, Mayeanna Kamara

Theses

The objective of this thesis is to evaluate the effectiveness of safety training modalities which are specifically designed for the non unionized workers in the construction industry. The main hypothesis is to determine whether multimodal and extended training improves the effectiveness of the learning aspects and safety consciousness among the trainees. The study conducted a literature survey on the factors that affects safety outcomes in construction industry, especially for the non unionized workers. The study developed a survey instrument to evaluate effectiveness of safety training. This study intended to prove that a video training is not enough and that hands …

Semi Team Driver Dies After Being Ejected From Sleeper Berth, Kentucky Injury Prevention And Research Center

Fatality Case Reports--Motor Vehicle

In the fall of 2009, a husband-wife semi driver team traveled south on a four-lane interstate. They were driving a semi-tractor trailer loaded with air freight. It was nighttime; the husband was driving, and the wife was in the sleeper berth. There was an unoccupied car parked on the right shoulder. The husband crossed the fog line on the right, sideswiped the car, traveled through a guardrail, and down an embankment toward a road below the interstate. During the trajectory of the semi-tractor trailer, the unit jackknifed; the trailer detached from the semi then struck the semi, and both the …

Gestion Des Changements Technologiques Et Organisationnels Et Représentations Sociales : Impact Sur La Sst, Camille Legendre

Rapports de recherche scientifique

No abstract provided.

Knowledge Transfer In Public School Food Service: Post-Implementation Of The Process Approach To Haccp Food Safety System, Lydia Rebecca Frass

Dissertations

Based on Havelock's (Havelock & University of Michigan. Center for Research on Utilization of Scientific Knowledge, 1969) Knowledge Transfer Model and using Kirkpatrick's Training Evaluation Model (1996a, 1996b) levels of Reaction, Behavior, and Learning, this study analyzed knowledge transfer between public school district managers, cafeteria managers, and line workers. These employees were trained through cascade training methods during the federally mandated implementation of the Process Approach to HACCP food safety system beginning in the 2005-2006 school year.

Measuring Behavior, an Observation Checklist (based on HACCP's 7 steps and 10 FDA food borne illness risk factors and interventions) was used to …