Job satisfaction among control room operators of electrical systems

Shift workers from control centers of electrical systems are a group that has received little attention in Brazil. This study aimed to compare workers' job satisfaction at five control centers of a Brazilian company electrical system, and according to their job titles. Method: The Organization Satisfaction Index (OSI) questionnaire to assess job satisfaction was used. ANOVA was used to compare OSI means, according to job title and control center. The results showed that there is no difference in job satisfaction among job titles, but a significant difference was found according to the control center. A single organizational culture cannot be applied to several branches. It is required to implement actions that would result in job satisfaction improvements among workers of all studied control rooms centers. The high level of education of operators working in all centers might have contributed to the similar values of perceived satisfaction among distinct job titles.     

Increased of Brazilian productivity in the slaughterhouse sector: a review

Due to Brazil is a tropical country has activities in occupational exposure to cold restricted to few sectors especially the meatpacking industry. Taking into account that the country in 2010, was again the largest exporter of poultry meat in the world and consequently employing a large number of workers for their slaughter and processing. The search for greater productivity can result in an increase in work rate, as indicated in this sector as monotonous, repetitive and uncomfortable. According the Programa de Frigorífico it was found that within six years, about 20% of the six thousand workers in a slaughterhouse in southern Brazil, received welfare benefits due to musculoskeletal diseases. Adding to this, the lack of parameters for the Brazilian standardization concerning occupational activities carried out in cold. Although several epidemiological studies point to the cold as a risk factor for occurrence or aggravation of musculoskeletal disorders, research in this field is still limited and often contradictory conclusions. This article aims to review developments concerning the poultry industry and the fridge in Brazil, as well as raising the question about the increased productivity of the slaughterhouse, since it has already shown a high prevalence of musculoskeletal disorders related to work.     

A proposal for an ergonomic redesign for a mixer Mondial B-02

This research aimed to redesign an appliance based on the biomechanical aspects in applied ergonomics. The product chosen for analysis was the household mixer, it is readily found in most homes of several families. The study enabled the identification of several potential risks and proposed biomechanical ergonomic solutions for each. Finally, it was possible to redesign the handle of the mixer, making it suitable form and human use.     

Sleep patterns and sleepiness of working college students

The double journey (work and study) may result or aggravate health problems, including sleep disturbances, as observed in previous studies with high school students. The aim of this study is to analyze the sleep-wake cycle and perceived sleepiness of working college students during weekdays. Twenty-three healthy college male students, 21-24 years old, working during the day and attending classes in the evening, participated in this study. During five consecutive days, the students filled out daily activities logs and wore actigraphs. Mean sleeping time was lower than 6 hours per night. No significant differences were observed in the sleep-wake cycle during the weekdays. The observed lack of changes in the sleepwake cycle of these college students might occur as participants were not on a free schedule, but exposed to social constraints, as was the regular attendance to evening college and day work activities. Sleepiness worsened over the evening school hours. Those results show the burden carried by College students who perform double activities - work and study.     

Quantitative noise analysis at two marble finishing plants in Olinda, Pernambuco, Brazil

In Olinda there are an estimated 50 marble quarries, 3 of which are members of the stone extraction and finishing industry's state union. The objective here is to quantitatively evaluate the noise present at the workplace in two of Olinda's unionized marble quarries. The data to be analyzed was collected during December 2010, this month representing one of the four busiest months of production. The samples were collected from Tuesdays to Fridays in order to avoid irregular outcomes. Instantaneous readings were taken with the decibel meter to identify points of Noise Pressure Level (NPL) higher than Action Level (AL). Afterwards, the full procedure for the characterization of noise level with the decibel meter in order to compare the Homogeneous Exposure Group (HEG) to those with High Risk Exposure (HRE) was initiated. The noisiest sources came from humid cutting machines, marble saws and polishing equipment. The activities of cutter and polisher became classified as follows: unsafe, in a critical situation and in need of priority control for the work environment with noise level values varying from 95.0 dB(A) to 103.3 dB(A), calling for the use of ear protection during the entire work day.     

Quality of diet of working college students

Considering the scarcity of studies with young workers and the role of diet in the prevention of chronic diseases, the objective of the study was to assess the quality of diet of working college students. The present study investigated 43 university students, aged between 18 and 25 years old who had systematically being involved in a working activity in the past 6 months, paid or unpaid, at least 6 hours daily, five days a week. Dietary intake measured by seven dietary records covering every day of the week was used to calculate the Brazilian Healthy Eating Index Revised (B-HEIR). It was observed a low B-HEIR score (53.43,±7.81) indicating a risk of a poor quality of diet, with high intake of sodium and sugar and low consumption of fruits and whole grains. This poor quality of diet can result in an inadequate nutritional status that may increase the risk of obesity and chronic diseases.     

The ergonomic and legal aspects of the heritage of the state of Pernambuco--Brazil

This paper aims to demonstrate the situation of the buildings declared a historical landmark by the government spheres in the state of Pernambuco, and how they attend the norms of accessibility for those with special needs. The methodology of the research contemplated a sample of 46 heritage buildings, approximately 16% of the universe of properties, which are around 268. In turn, these were limited to Recife's Metropolitan Region Area - RMR comprising 30% of the 153 properties of the municipalities of: Cabo de Santo Agostinho, Igarassu, Itamaracá, Ipojuca, Jaboat?o dos Guararapes, Moreno, Olinda, Paulista, Recife and S?o Louren?o da Mata. From the specific forms set up based on the theoretical reference, as well as graphics and photographic records were assessed the aspects of both internal and external accessibility, displacement, (visual) orientation, and the use of space and equipment. In the analysis of different types was assembled a summary table ranking the samples in accessible, partially accessible and not accessible. As general results were found that from the 46 properties examined, 2 (5%) are accessible, 16 (35%) are partially accessible and 28(60%) are not accessible. Such data, although sample, shows that the majority of heritage properties does not provide access to people physically disabled or with reduced mobility signaling for professionals, managers and society institutions on the need to reduce physical barriers in such heritage.     

Impacts of introducing a new tool for the manual harvesting of sugar cane: the ergonomic analysis contribution

The purpose of this study was to evaluate the impact of introduction a new work tool on health and productivity of manual harvesting sugarcane workers. In this study it was performed aErgonomic Work Analysis (EWA) to analyze the work tool changes.The study included sugarcane workers, drivers, fiscals, and technical's safety at work.During the analysis process, 134 questionnaires were applied,aimed to identify the constraints that such workers are submitted,to evaluate the tool introduced, in order to propose modifications to improve it.The results showed a decrease in perceived exertion and discomfort, without compromising the cut quality. The main contributions of Ergonomic Work Analysis were the possibility of bringing the logic of the worker, in order to understand the inherent real work characteristics, to the process of developing the new tool. Besides, it was also noted that this methodology, based on the analysis workers activity in a real usage, as an application tool in design projects, providing innovations from the workers perspective.