Papers by Lia Buarque de Macedo Guimarães
Applications and Implications of the Brazilian Ergonomics Regulatory Standard (NR17)
Proceedings of the 21st Congress of the International Ergonomics Association (IEA 2021)
A Systematic Literature Review of Consumers' Cognitive-Affective Needs in Product Design From 1999 to 2019
Frontiers in Neuroergonomics
Understanding consumer cognitive and affective needs is a complex and tricky challenge for consum... more Understanding consumer cognitive and affective needs is a complex and tricky challenge for consumer studies. Creating and defining product attributes that meet the consumers' personal wishes and needs in different contexts is a challenge that demands new perspectives because there are mismatches between the objective of companies and the consumer's objective, which indicates the need for products to become increasingly consumer-oriented. Product design approaches aim to bring the product and consumer closer together. The objective of this study is to investigate the application of the cognitive and affective needs of the consumer in product design through a systematic review of the literature of publications carried out in the last 20 years. This article selects research carried out in the specific area of cognitive and affective product design and defines the state of the art of the main areas, challenges, and trends. The conclusion that was reached is that cognitive approa...
Production
Paper aims: To shed light on the state of the art of the academic production in Ergonomics. Origi... more Paper aims: To shed light on the state of the art of the academic production in Ergonomics. Originality: There is no study on the Brazilian academic production in Ergonomics for the last 30 years. Research method: Based on the Capes database, the abstracts of 1471 theses/dissertations from 2007 to 2017 were classified by approach and focus. Main findings: 58.9% of the studies are diagnoses and only 1.4% presents complete projects for work optimization, what might indicate a difficulty of implementing ergonomic interventions in Brazilian companies. 52% of the publications are from national meeting proceedings and only 5.4% from international journals. Implications for theory and practice: The lack of clear objectives, main results and applications in the abstracts reduces the potential interest in the studies. This, and the low number of intellectual production (less than one publication/study) impact the dissemination of knowledge.
Brazilian Journal of Operations & Production Management
Goal: This article presents an assessment of the impacts of the “Research in Companies Support Pr... more Goal: This article presents an assessment of the impacts of the “Research in Companies Support Program (PAPPE): Economical Subvention to Innovation”, in the decentralized modality, i.e., projects contracted in the states of the Brazilian federation. Considering the high opportunity cost of the PAPPE program, it was deemed important to evaluate how the financed projects impacted the three dimensions (economic, social and environmental) of sustainable development. Methodology: Study was based on literature review on innovation grants; interviews with one Finep technician and technicians from Fapes, Fapesc and Sebrae-PR; and documental research and analysis of 53 projects carried out in the states of Espírito Santo, Paraná and Santa Catarina, from 2009-2013. Descriptive analysis was conducted for comparing performance of the three states. Results: Under the economic dimension, the PAPPE program enhanced the ability of funding recipients to compete on a national level. However, there w...
Este artigo tem como objetivo geral avaliar os efeitos e os impactos do Programa de Apoio à Pesqu... more Este artigo tem como objetivo geral avaliar os efeitos e os impactos do Programa de Apoio à Pesquisa em Empresas (PAPPE), na modalidade da subvenção econômica à inovação (SE), para estimular as atividades inovadoras. Foram avaliados 53 projetos oriundos dos estados do Espírito Santo, Santa Catarina e Paraná. A avaliação considerou as dimensões do desenvolvimento sustentável do Instituto Brasileiro de Geografia e Estatística (IBGE,2015), isto é, as dimensões econômicas, tecnológicas, cultura de inovação e relacionamento, social e ambiental. Nas dimensões econômica e tecnológica, os principais resultados mostraram que o Programa foi significativo para ampliar a competitividade das empresas contempladas ao nível XXXVIII ENCONTRO NACIONAL DE ENGENHARIA DE PRODUCAO "A Engenharia de Produção e suas contribuições para o desenvolvimento do Brasil"
A Influência Da Matutinidade e Vespertinidade Nos Resultados Alcançados Por Alunos De Um Curso Superior On-Line
Apresentações Trabalhos Científicos
Production, 2016
Resumo Este trabalho apresenta um procedimento para auxiliar as empresas na avaliação da sustenta... more Resumo Este trabalho apresenta um procedimento para auxiliar as empresas na avaliação da sustentabilidade socioambiental, aspecto que tem se mostrado essencial para a competitividade das mesmas. O procedimento desenvolvido emprega suporte analítico e gráfico para avaliação das dimensões ambiental e social das empresas, considerando tanto o desempenho interno quanto o externo. O desenvolvimento do procedimento contemplou cinco etapas: identificação dos itens de avaliação; organização dos itens em dimensões a serem analisadas; aplicação de questionário; totalização e visualização gráfica dos resultados. O questionário foi aplicado em 12 empresas. Para a visualização gráfica dos resultados, foi utilizado um gráfico radar, no qual os eixos representam as dimensões social, ambiental, interna e externa. As empresas pesquisadas revelaram melhor desempenho socioambiental externo, provavelmente em virtude da preocupação com a sua imagem. Além disso, verificou-se que empresas exportadoras pos...
Humanizing Labor Resource in a Discrete Event Manufacturing Simulation Software
Lecture Notes in Computer Science, 2015
Work (Reading, Mass.), 2012
This article presents a study on the accidents related to the use of products and services, as re... more This article presents a study on the accidents related to the use of products and services, as recorded at two emergency hospitals at the city São Luís, Brazil. The goal of the study was to evaluate the main types and causes of unintentional accidents as well as the more frequent injuries for further improvement of products and services. The study evaluated the victims profile (gender and age), the circumstances (activity, local and time) that lead to the accidents and the type of resulted injury. Non-parametric statistics showed that 83.64% of the accidents were related to products (57.6% of them being consumer products) and 8.6% are related to maintenance services. 57.6% of the victims were children under 15 years old, and 58.4% were male. 50.2% of accidents occurred at home, more often (44.7%) in the afternoon. The most common injury was musculoesqueletal (48.6%), 49.0% being cranioencephalic trauma and 15.2% fractures.
Participatory Method for Evaluating Office Chairs
Ergonomics Design & Mgmt. Theory & Applications, 2011
Work (Reading, Mass.), 2012
This article presents the analysis of the effect of two different types of work organization (the... more This article presents the analysis of the effect of two different types of work organization (the traditional and a new mechanized, more segmented one) in the packing sector of a luminary manufacturing company in Curitiba, Brazil. A macroergonomic analysis was conducted to evaluate the workers satisfaction with the job; the possible associated postural risk, the level of body pain/discomfort and to compare the two models (traditional and mechanized). The mechanized model showed to involve higher postural risk, to generate more pain and less satisfaction, even in relation to the temperature, illumination, uniform and salary, which are the same for the two groups. Excluding job rotation that was well evaluated and should be adopted for all workers, the new model proved to be worse than the traditional although it also needs improvements.
Work (Reading, Mass.), 2012
This article presents a macroergonomic intervention carried out in a small footwear components co... more This article presents a macroergonomic intervention carried out in a small footwear components company located in the state of Rio Grande do Sul, Brazil. The company's demand was related to the waste of the expensive raw-material (thermoplastic polyurethane or TPU) used to manufacture the components (high heels pegs). According to the managerial staff, the waste was workers responsibility due to the craft characteristic of the process. A participative method was used to evaluate the problems, propose and implement solutions, as well as evaluate their impact on the workers and the Company. Improvements in the work conditions resulted in increase of workers' satisfaction with the work and in 31.5% waste reduction.
Participatory ergonomics intervention for improving human and production outcomes of a Brazilian furniture company
International Journal of Industrial Ergonomics, 2015
ABSTRACT This article presents a participatory intervention in a furniture manufacturing company ... more ABSTRACT This article presents a participatory intervention in a furniture manufacturing company in Southern Brazil aiming to improve both ergonomic and production outcomes. The existing Tayloristic model was replaced by a cellular teamwork model. Work enlargement and enrichment, and the improvements in workstation design and process flow increased worker satisfaction and reduced postural risk, fatigue, body pain and production waste. Workload was reduced by 42% and productivity increased by 46% (25% being attributable to unnecessary load handling, waiting and transportation, and 21% attributable directly to manufacturing times). Workers' participation in the stages of problems identification, design and evaluation of solutions played a major role in these outcomes.
Produção, 2009
Este artigo mostra o método adotado e os resultados obtidos em estudo realizado com operadores de... more Este artigo mostra o método adotado e os resultados obtidos em estudo realizado com operadores de uma distribuidora de derivados de petróleo da região Sul do Brasil. O objetivo era avaliar a carga de trabalho e os fatores que interferem nessa carga, do ponto de vista dos operadores. A metodologia aplicada incluiu entrevistas e dois questionários, um adaptado do NASA-TLX e um para levantamento dos fatores que interferem na carga de trabalho. Os resultados indicaram que a maioria dos operadores percebe que a carga de trabalho é alta. Entre os componentes da carga de trabalho, o desempenho é a que tem peso maior, enquanto os problemas relacionados a equipamentos e sistemas informatizados são os que mais influenciam nessa carga. Tendo em vista os resultados obtidos, é necessário aperfeiçoar os subsistemas, técnico e organizacional, da empresa para gerar melhorias na performance, saúde e satisfação dos operadores.
Anais do 11º Congresso Brasileiro de Pesquisa e Desenvolvimento em Design, 2014
A percepção de emoção de usuários na interação com o mobiliário urbano em espaços públicos destac... more A percepção de emoção de usuários na interação com o mobiliário urbano em espaços públicos destacou, em dois estudos anteriores, agradabilidade e segurança como importantes constructos emocionais. Este artigo apresenta uma revisão de literatura com objetivo de confirmar a relevância desses constructos, como base teórica para o desenvolvimento de diretrizes projetuais para o design e a avaliação do mobiliário urbano de espaços públicos com apelo emocional. Como resultado, é apresentado um quadro que relaciona atributos do produto (mobiliário urbano) e seu contexto de uso (espaço público) aos constructos pesquisados em diferentes áreas do conhecimento: design, ergonomia, psicologia ambiental, sociologia e planejamento urbano.
Application of the sociotechnical design method for the development of eco-friendly shoes for the students of Brazilian public schools
Theoretical Issues in Ergonomics Science, 2012
... DOI: 10.1080/1463922X.2011.640441 Lia Buarque de Macedo Guimar??es a * & Ronise Ferreira ... more ... DOI: 10.1080/1463922X.2011.640441 Lia Buarque de Macedo Guimar??es a * & Ronise Ferreira dos Santos a pages 43-74. Available online: 18 Jan 2012. ...
Sociotechnical design for a sustainable world
Theoretical Issues in Ergonomics Science, 2012
This article presents the sociotechnical design method for conceiving innovative sustainable prod... more This article presents the sociotechnical design method for conceiving innovative sustainable products and/or systems. It is a participatory approach to design that focuses on meeting the basic needs of people at the base of the social pyramid using waste as raw material for developing products/systems with high added value. The method has three stages: (1) a matrix that cross-matches basic needs and the available forms of waste and thereby induces, by brainstorming, the development of design opportunities; (2) four matrices for identifying the ergonomic demands of the three human users (the primary, the intermediate and end users) and the environment and (3) a matrix that evaluates the design alternatives in terms of sustainability, quality and cost. The method is aligned with the worldwide adopted sustainability definition, with the cradle-to-cradle approach to design and consistent with the Zero Emissions Research and Initiatives chain production system approach.
A method for assessing health and safety management systems from the resilience engineering perspective
Safety Science, 2009
... are problems and needs, and to provide information that can be used in developing actions pla... more ... are problems and needs, and to provide information that can be used in developing actions plans ... Since the framework of the MAHS was defined, it was applied and assessed by means of ... MAHS was undertaken in a small-sized school for training pilots for civil aviation (Carim Jr ...
International Journal of Industrial Ergonomics, 2008
Work on scaffolds is usually associated with traumatic type injuries. However, operating that typ... more Work on scaffolds is usually associated with traumatic type injuries. However, operating that type of equipment can also contribute to overexertion injuries, especially in manually operated suspended scaffolds. Since this equipment is largely used both in Brazil and other developing countries for painting and coating building facades, this study presents an ergonomic assessment on the operation of two types of suspended scaffolds. They are referred to as light scaffold and heavy scaffold-the difference lying in their dimensions and number of gears. The assessment criteria were: workers' perceptions of effort; body posture assessment (OWAS method); heart rate elevations (HRE); percentage of the available heart rate range (PHRR); scaffolds' speed and, repetitiveness of movement in the scaffolds' levers. Workers preferred the light scaffold because it moved up to eight times faster than the heavy scaffold. However, the study's results indicated that the operation of both types is much too physically demanding. For instance, HRE was 52 beats per minute (bpm) and PHRR was 50.7% on average for workers operating the light scaffold. Concerning the heavy scaffold, HRE was 45 bpm and PHRR was 42.2% on average. All of those values are substantially higher than the acceptable limits of 35 bpm for HRE and 33% for PHRR proposed in the literature. Failures in the scaffolds' design as well as the lack of attention directed towards ergonomics in regulations were determined to be relevant root causes for detected poor working conditions.
Circadian Rhythms as a Basis for Work Organization: A Study With Live Line Electricians
Human Factors: The Journal of the Human Factors and Ergonomics Society, 2013
With the assumption that circadian rhythms influence human performance, the work of live line ele... more With the assumption that circadian rhythms influence human performance, the work of live line electricians was reorganized and evaluated. The hypothesis was that in highly physical and attention-demanding work, the organization of tasks, according to the ideal period of day and day of week, should diminish stress and consequent work risks. There are only a few studies reporting the work of electricians and even fewer approaching work organization. Moreover, these investigations often do not consider human physiological limitations and capabilities as well as task demands. A new work system was proposed with consideration of (a) the circadian cycles and homeostatic processes; (b) the effect of heat, which is a zeitgeber (synchronizer) for the biological clocks; and (c) the degree of physical and mental demands of the different performed tasks, which was assessed on the basis of opinions of the electricians and physiological markers of stress that are controlled by circadian rhythms. The traditional and new systems were compared on the basis of two cognitive indices (the arrangement of matchsticks and the perception of a minute) and three physiological markers of mental-to-physical loads (heart frequency and the level of adrenaline and noradrenaline). Both physical and mental loads were reduced in the new system. Work organization should include consideration of human circadian rhythms, mainly when stressful and high-risk tasks are involved. The findings can be applied in any work design, but they are especially suited for highly demanding work carried out outdoors.
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Papers by Lia Buarque de Macedo Guimarães