Human factors and ergonomics design principles and guidelines : helping designers to be more creative

This is a pre-copyedited version of a contribution published in: Proceedings of the 20th Congress of the International Ergonomics Association (IEA 2018). IEA 2018. Advances in Intelligent Systems and Computing, vol 824, edited by Bagnara S., Tartaglia R., Albolino S., Alexander T., Fujita Y., published by Springer, Cham. The definitive authenticated version is available online via https://doi.org/10.1007/978-3-319-96071-5_17.The knowledge and application of Human Factors/Ergonomics (HFE) principles and guidelines can help designers to develop better products and services. However, they may also include design constraints that may affect designers’ creativity. Although both HFE principles and guidelines and creativity are considered essential in the design of products and services, the link between them is little researched. In this article a discussion is presented on the influence that HFE principles and guidelines can exert on the creativity of designers. It also presents case studies of HFE principles and guidelines and discusses how they can influence designers’ creativity. In addition, a set of recommendations is suggested to help designers apply ergonomic design principles and guidelines to stimulate creativity. It is concluded that HFE principles and guidelines can assist designers in creating safer and more efficient products and services and can also broaden their creative process and therefore the originality and appropriateness of products and services

Uso de álcool e drogas e sua influência sobre as práticas sexuais de adolescentes de Minas Gerais, Brasil Alcohol and illicit drug use and its influence on the sexual behavior of teenagers from Minas Gerais State, Brazil

Os achados provêm de um estudo transversal de 5.981 estudantes de escolas públicas de Minas Gerais, Brasil. Avaliou-se a influência do uso de drogas sobre as práticas sexuais. Dos rapazes com relacionamento casual que referiram ter utilizado drogas ilícitas, 55,7% disseram usar preservativos de forma consistente (em todas as relações sexuais), enquanto entre os que nunca fizeram uso de tais substâncias, esse percentual foi de 65,4%. Entre os rapazes com relacionamento fixo, que utilizaram droga ilícita, o uso consistente de preservativos foi referido por 42,7%, ao passo que, para os que nunca fizeram uso dessas substâncias, esse percentual foi de 64,1%. No subgrupo dos rapazes com parceria fixa que nunca utilizaram drogas ilícitas, o uso consistente do preservativo foi menos freqüente entre os que utilizaram cigarro e/ou álcool do que entre os que não referiram este uso (60,7% vs. 71,1%). As moças apresentaram menor proporção de uso consistente do preservativo do que os rapazes, independentemente do tipo de parceria, sem influência aparente dos padrões de consumo. Os achados sugerem a necessidade de integrar a prevenção do uso de drogas à de infecções sexualmente transmissíveis/gravidez indesejada.<br>This article summarizes the findings of a survey including 5,981 students from public schools in Minas Gerais State, Brazil. The analysis assessed the influence of drug use on sexual practices. Among the boys engaged in relationships with casual partners who stated having used illicit drugs, 55.7% reported consistent condom use, as compared to 65.4% among those not reporting such habits. Among boys engaged in relationships with stable partners who reported illicit drug use, consistent condom use was reported by 42.7%, versus 64.1% among those not reporting such habits. In the subgroup of boys engaged in stable relationships who did not report illicit drug use, consistent condom use was less frequent among those that used alcohol/cigarettes, compared to those who did not drink or smoke (60.7% vs. 71.1%). Girls were less likely than boys to use condoms consistently, regardless of the nature of their relationships, without a noticeable influence of drug use. Policies to prevent drug abuse, sexually transmitted diseases, and unplanned pregnancy should be fully integrated

Fatores associados à capacidade para o trabalho de trabalhadores do Setor Elétrico Factors associated with labor capacity in electric industry workers

O Setor Elétrico passou por recente processo de reestruturação produtiva com reflexos nas condições e organização do trabalho, podendo comprometer a capacidade para o trabalho. Este estudo objetivou avaliar fatores associados à capacidade para o trabalho junto a 475 trabalhadores de uma empresa do Setor Elétrico no Estado de São Paulo, Brasil. Neste estudo transversal foi realizada análise descritiva e análise de regressão linear múltipla. A média do Índice de Capacidade para o Trabalho (ICT) foi de 41,8 pontos (escala de 7,0 a 49,0 pontos). A análise múltipla mostrou que os fatores que melhor explicaram a variabilidade do ICT foram estresse no trabalho (p < 0,001) e saúde física (p < 0,001 em todas as dimensões). Em outra análise, excluídas as dimensões da saúde, as variáveis associadas ao ICT foram estresse no trabalho (p < 0,001), local de trabalho (p = 0,022), prática de atividade física (p = 0,001), consumo de álcool (p = 0,012) e índice de massa corporal (p < 0,001). Os resultados identificaram aspectos a serem considerados no desenvolvimento de medidas visando a preservação da capacidade para o trabalho, com ênfase no controle do estresse no trabalho e na promoção da saúde.<br>The Brazilian electric utility sector has recently undergone major industrial restructuring, with impacts on working conditions and work organization that could jeopardize the capacity for work. This study aimed to evaluate factors associated with labor capacity in a sample of 475 workers from an electric utility company in the State of São Paulo, Brazil. This cross-sectional study included descriptive and multiple linear regression analyses. The mean labor capacity index (LCI) was 41.8 points (on a scale from 7.0 to 49.0). Multiple regression showed that the factors that best explained LCI variability were work stress (p < 0.001) and physical health (p < 0.001 in all the dimensions). In a separate analysis, excluding all the health dimensions, the variables associated with LCI were work stress (p < 0.001), workplace (p = 0.022), physical activity (p = 0.001), alcohol consumption (p = 0.012), and body mass index (p < 0.001). The results highlighted aspects to be considered when developing measures to protect labor capacity, with an emphasis on stress prevention and health promotion