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Industrial hygiene

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https://www.readbyqxmd.com/read/28528784/keeping-the-voice-fit-in-the-group-fitness-industry-a-qualitative-study-to-determine-what-instructors-want-in-a-voice-education-program
#1
Patrick J Aiken, Anna F Rumbach
OBJECTIVES: This study aimed to provide a descriptive summary of (1) group fitness instructors' (GFIs') experiences of occupational voice use and education, and (2) the content and mode of delivery desired by GFIs in an education and training program. STUDY DESIGN: This is a qualitative inductive approach using a semi-structured interview. METHOD: Semi-structured interviews were conducted with eight GFIs recruited via self-selection sampling...
May 18, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28521744/determination-of-the-sources-and-antimicrobial-resistance-patterns-of-salmonella-isolated-from-the-poultry-industry-in-southern-ethiopia
#2
Reta Duguma Abdi, Fisseha Mengstie, Ashenafi Feyisa Beyi, Takele Beyene, Hika Waktole, Bedasso Mammo, Dinka Ayana, Fufa Abunna
BACKGROUND: Ethiopia set an ambitious masterplan to increase chicken meat and egg production from 2015 to 2020. Poultry breeding, multiplication and distribution centers in the country have received executive order to import, amplify and distribute commercial chickens to end users. The biosecurity and the pathogen fauna of the centers have not been evaluated as to whether the centers could implement the mission effectively without any risk. Thus, the aim of this study was to evaluate the biosecurity practices and the pathogen prevalence, risk factors and their antimicrobial resistance (AMR) using Salmonella as case study...
May 18, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28506182/elemental-properties-of-copper-slag-and-measured-airborne-exposures-at-a-copper-slag-processing-facility
#3
Christopher Mugford, Jenna L Gibbs, Randy Boylstein
In 1974, the National Institute for Occupational Safety and Health recommended a ban on the use of abrasives containing >1% silica, giving rise to abrasive substitutes like copper slag. We present results from a National Institute for Occupational Safety and Health industrial hygiene survey at a copper slag processing facility that consisted of the collection of bulk samples for metals and silica; and full-shift area and personal air samples for dust, metals, and respirable silica. Carcinogens, suspect carcinogens, and other toxic elements were detected in all bulk samples, and area and personal air samples...
May 16, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28486152/benzotriazole-ultraviolet-stabilizers-alter-the-expression-of-the-thyroid-hormone-pathway-in-zebrafish-danio-rerio-embryos
#4
Xuefang Liang, Jiajia Li, Christopher J Martyniuk, Juan Wang, Yufeng Mao, Huan Lu, Jinmiao Zha
Benzotriazole ultraviolet stabilizers (BUVSs) are widely used in industrial products as well as personal-hygiene products to protect the material or skin from harmful UV-radiation. Due to their persistence and bioaccumulation, BUVSs have been ubiquitously detected in aquatic environments. Although the toxicological effects of BUVSs in aquatic organisms have been previously examined, the effects of BUVSs on the thyroid system have not been adequately addressed. In this study, we assessed putative thyroid disrupting effects of BUVSs (UV-234, UV-326, UV-329 and UV-P) in zebrafish embryos at 1, 10 and 100 μg/L for 96 h...
May 3, 2017: Chemosphere
https://www.readbyqxmd.com/read/28472371/bayesian-analysis-of-occupational-exposure-data-with-conjugate-priors
#5
Rachael M Jones, Igor Burstyn
Bayesian analysis is a flexible method that can yield insight into occupational exposures as the methods quantify plausible values for exposure parameters of interest, such as the mean, variance, and specific percentiles of the exposure distribution. We describe three Bayesian analysis methods for the analysis of normally distributed data (e.g. the logarithm of measurements of chemical hazards) that use conjugate prior distributions (normal for the mean, and inverse-χ2, inverse-Γ, or vague for the variance) to provide analytical expressions for the posterior distributions of the sufficient statistics of the normal distribution (e...
May 4, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/28459616/effect-of-water-activity-on-the-thermal-tolerance-and-survival-of-salmonella-enterica-serovars-tennessee-and-senftenberg-in-goat-s-milk-caramel
#6
Oscar Acosta, Jessie Usaga, John J Churey, Randy W Worobo, Olga I Padilla-Zakour
The low thermal tolerance of Salmonella enterica in foods with intermediate moisture levels, such as caramel sauces, ensures that mild heat treatment is sufficient to achieve 5-log reductions of this pathogen. This treatment mitigates the risk posed by salmonellae in raw materials; however, recontamination might occur because of survival of the pathogen in products that are not heated before consumption. This study was conducted to evaluate the effect of water activity (aw) on the thermal tolerance and survival of S...
May 1, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28450992/-study-of-the-bacteriological-quality-of-water-used-in-the-agro-food-industry-in-the-north-of-morocco
#7
El Houcine Haijoubi, Fatiha Benyahya, Abdrezzak Bendahou, Faima Zahra Essadqui, Mohammed El Behhari, Ahmed Fouad El Mamoune, Naima Nourouti Ghailani, Mohcine Bennani Mechita, Amina Barakat
INTRODUCTION: Water is used predominantly in food manufacturing process. Northern morocco agro-food industries use different sources of water, but public water and wells water are the main sources of water used. This water can be the main source of possible food contaminations and alterations. This study aims is to assess the bacteriological quality of water used in the agro-food industries in the Northern region of Morocco, to identify the different types of germs responsible for the pollution of these waters and to establish the main causes of this pollution...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28395354/urinary-bisphenol-a-bpa-concentrations-among-workers-in-industries-that-manufacture-and-use-bpa-in-the-usa
#8
Cynthia J Hines, Matthew V Jackson, James A Deddens, John C Clark, Xiaoyun Ye, Annette L Christianson, Juliana W Meadows, Antonia M Calafat
Background: Bisphenol A (BPA) toxicity and exposure risk to humans has been the subject of considerable scientific debate; however, published occupational exposure data for BPA are limited. Methods: In 2013-2014, 77 workers at six US companies making BPA, BPA-based resins, or BPA-filled wax provided seven urine samples over two consecutive work days (151 worker-days, 525 samples). Participant information included industry, job, tasks, personal protective equipment used, hygiene behaviors, and canned food/beverage consumption...
March 1, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/28395313/qualitative-and-semiquantitative-assessment-of-exposure-to-engineered-nanomaterials-within-the-french-epinano-program-inter-and-intramethod-reliability-study
#9
Irina Guseva Canu, Delphine Jezewski-Serra, Laurène Delabre, Stéphane Ducamp, Yuriko Iwatsubo, Sabine Audignon-Durand, Cécile Ducros, Anca Radauceanu, Catherine Durand, Olivier Witschger, Emmanuel Flahaut
The relatively recent development of industries working with nanomaterials has created challenges for exposure assessment. In this article, we propose a relatively simple approach to assessing nanomaterial exposures for the purposes of epidemiological studies of workers in these industries. This method consists of an onsite industrial hygiene visit of facilities carried out individually and a description of workstations where nano-objects and their agglomerates and aggregates (NOAA) are present using a standardized tool, the Onsite technical logbook...
January 1, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/28390848/-the-advent-of-a-newborn-specialty-19th-century-pediatrics
#10
Jean-Jacques Baudon
Pediatrics began under the most unfavorable conditions that are difficult to imagine nowadays. Children at the start of the 19th century were considered as negligible. The death rate was tremendous, increased by the work of children in factories as soon as 6 years of age in textile industries. In upper classes, infants were fed by a wet nurse, far from their parents and death rate was high as well. The emergence of pediatrics was the result of work carried out in adult medicine in the first half of the 19th century: clinical anatomic method, knowledge of contagious diseases even before the discovery of bacteria, birth of bacteriology...
April 5, 2017: La Presse Médicale
https://www.readbyqxmd.com/read/28380510/animal-behavior-and-well-being-symposium-optimizing-outcome-measures-of-welfare-in-dairy-cattle-assessment
#11
E Vasseur
In most countries producing milk, industry- or other stakeholder-driven initiatives are in place to improve welfare and overall dairy farming sustainability. Those initiatives typically include a system of verification of reaching targets and progress over time. Reliable indicators are a fundamental requirement to provide public assurance and allow improvement on farms. Assessing dairy cattle welfare through outcome measures of welfare is done today through visual evaluations, including those of lameness, injuries, hygiene, and body condition...
March 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28367146/lack-of-evidence-that-selenium-yeast-improves-chicken-health-and-modulates-the-caecal-microbiota-in-the-context-of-colonization-by-campylobacter-jejuni
#12
Alexandre Thibodeau, Ann Letellier, Étienne Yergeau, Guillaume Larrivière-Gauthier, Philippe Fravalo
Faced with ever-increasing demand, the industrial production of food animals is under pressure to increase its production. In order to keep productivity, quality, and safety standards up while reducing the use of antibiotics, farmers are seeking new feed additives. In chicken production, one of these additives is selenium. This element is expected to confer some advantages in terms of animal health and productivity, but its impact on chicken intestinal microbiota as well as on the carriage of foodborne pathogens is unknown...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28355995/new-advances-in-infant-feeding-new-products-and-novel-technologies
#13
M C Pina-Pérez, A Martínez, D Rodrigo
BACKGROUND: Breastfeeding is the best way to provide ideal food for infants. However, there are many situations in which breastfeeding is unviable (maternal illness, hygiene problems, intravenous feeding requirement, storage). Safe, efficient, and nutritious products should be offered by the industry to mothers and healthcare professionals as an alternative. OBJECTIVE: The present review aims to update the state of the art regarding the most innovative developments in infant feeding formulation and, the promising novel technologies that are being investigated to achieve a balance between the microbiological stability, organoleptic and nutritional value of babyfood...
March 28, 2017: Recent Patents on Food, Nutrition & Agriculture
https://www.readbyqxmd.com/read/28355414/retrospective-assessment-of-occupational-exposures-for-the-geneva-study-of-als-among-military-veterans
#14
Anila Bello, Susan R Woskie, Rebecca Gore, Dale P Sandler, Silke Schmidt, Freya Kamel
Objective: This paper describes the retrospective exposure assessment conducted to assess occupational exposures for the Genes and Environmental Exposures in Veterans (GENEVA) study, a case-control study investigating the joint contribution of genetics and environmental exposures to the risk of amyotrophic lateral sclerosis (ALS) among military veterans. Methods: Occupational histories for 1597 study participants collected as part of the GENEVA study were the basis for this retrospective exposure assessment...
April 1, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/28351915/comparison-of-standard-culture-based-method-to-culture-independent-method-for-evaluation-of-hygiene-effects-on-the-hand-microbiome
#15
C Zapka, J Leff, J Henley, J Tittl, E De Nardo, M Butler, R Griggs, N Fierer, S Edmonds-Wilson
Hands play a critical role in the transmission of microbiota on one's own body, between individuals, and on environmental surfaces. Effectively measuring the composition of the hand microbiome is important to hand hygiene science, which has implications for human health. Hand hygiene products are evaluated using standard culture-based methods, but standard test methods for culture-independent microbiome characterization are lacking. We sampled the hands of 50 participants using swab-based and glove-based methods prior to and following four hand hygiene treatments (using a nonantimicrobial hand wash, alcohol-based hand sanitizer [ABHS], a 70% ethanol solution, or tap water)...
March 28, 2017: MBio
https://www.readbyqxmd.com/read/28350184/risk-assessment-or-assessment-of-risk-developing-an-evidence-based-approach-for-primary-producers-of-leafy-vegetables-to-assess-and-manage-microbial-risks
#16
J M Monaghan, J C Augustin, J Bassett, R Betts, B Pourkomailian, M H Zwietering
Over the last 10 years, some high-profile foodborne illness outbreaks have been linked to the consumption of leafy greens. Growers are required to complete microbiological risk assessments (RAs) for the production of leafy crops supplied either to retail or for further processing. These RAs are based primarily on qualitative judgements of hazard and risks at various stages in the production process but lack many of the steps defined for quantitative microbiological RAs by the Codex Alimentarius Commission. This article is based on the discussions of an industry expert group and proposes a grower RA approach based on a structured qualitative assessment, which requires all decisions to be based on evidence and a framework for describing the decision process that can be challenged and defended within the supply chain...
March 28, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28328293/history-of-knowledge-and-evolution-of-occupational-health-and-regulatory-aspects-of-asbestos-exposure-science-1900-1975
#17
Christy A Barlow, Jennifer Sahmel, Dennis J Paustenbach, John L Henshaw
The understanding by industrial hygienists of the hazards of asbestos and appropriate ways to characterize and control exposure has evolved over the years. Here, a detailed analysis of the evolution of industrial hygiene practices regarding asbestos and its health risks, from the early 1900s until the advent of the national occupational health and safety regulatory structure currently in place in the US (early-to-mid 1970s) is presented. While industrial hygienists recognized in the early 1900s that chronic and high-level exposures to airborne concentrations of asbestos could pose a serious health hazard, it was not until the mid-1950s that the carcinogenic nature of asbestos began to be characterized and widespread concern followed...
March 22, 2017: Critical Reviews in Toxicology
https://www.readbyqxmd.com/read/28293138/effective-equations-governing-an-active-poroelastic-medium
#18
J Collis, D L Brown, M E Hubbard, R D O'Dea
In this work, we consider the spatial homogenization of a coupled transport and fluid-structure interaction model, to the end of deriving a system of effective equations describing the flow, elastic deformation and transport in an active poroelastic medium. The 'active' nature of the material results from a morphoelastic response to a chemical stimulant, in which the growth time scale is strongly separated from other elastic time scales. The resulting effective model is broadly relevant to the study of biological tissue growth, geophysical flows (e...
February 2017: Proceedings. Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28290317/single-step-non-thermal-cleaning-sanitation-of-knives-used-in-meat-industry-with-ultrasound
#19
Carla Cristina Bauermann Brasil, Juliano Smanioto Barin, Eduardo Jacob-Lopes, Cristiano Ragagnin Menezes, Leila Queiroz Zepka, Roger Wagner, Paulo Cezar Bastianello Campagnol, Alexandre José Cichoski
The combination of ultrasound (US) with chlorinated water (CW) and neutral detergent (ND) for simultaneous cleaning and sanitation of knives used during cattle slaughter was evaluated as a novel non thermal treatment. The US mode of operation, detergent concentration and time of treatment were studied and the results were compared with the conventional sanitation method used in meat industries. The conventional sanitation method promoted a decrease (p<0.05) in the counts of mesophiles, Enterobacteriaceae, molds and yeasts, and a similar behavior was observed for US+CW (2...
January 2017: Food Research International
https://www.readbyqxmd.com/read/28246573/milk-hygiene-in-rural-southwestern-uganda-prevalence-of-mastitis-and-antimicrobial-resistance-profiles-of-bacterial-contaminants-of-milk-and-milk-products
#20
Paul Ssajjakambwe, Gloria Bahizi, Christopher Setumba, Stevens M B Kisaka, Patrick Vudriko, Collins Atuheire, John David Kabasa, John B Kaneene
Mastitis and antimicrobial resistance are a big challenge to the dairy industry in sub-Saharan Africa. A study was conducted in Kashongi and Keshunga subcounties of Kiruhura District (in Uganda) where the government and private sector have deliberate programs to improve production efficiency, quality, and safety of milk and its products. The study aimed to determine the prevalence of mastitis, its common causative agents, antimicrobial sensitivity of mastitis causing organisms, and contaminants of processed milk products: yoghurt and ghee...
2017: Veterinary Medicine International
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