This research aims to propose and try out a model to assess the Industrial Engineering students’ satisfaction, with a focus on private higher education institutions. The research tool used in this study was the Student Questionnaire 2011 National Exam for the Assessment of Student Performance (ENADE), made available by the Brazilian Ministry of Education (MEC). The questions were designed to assess undergraduate students general satisfaction based on the following constructs: Teacher Involvement, Student Interest, Course Demands, Course Organization, and General Satisfaction. A new construct was added to this research: Infrastructure. The methods employed to analyze students’ responses concerning their satisfaction with the service provided by higher education institutions were: Confirmatory Factor Analysis and Structural Equation Modeling, with the support of the software package SPSS® (Statistical Package for the Social Sciences) and the AMOS® module. The hypotheses proposed in the model indicate that the construct Teacher Involvement is key to Student General Satisfaction.

The main objective of this study is to apply structural equation modeling with partial least squares, and based on covariance, to assess the satisfaction of residential electricity consumers. The methodology used compares the results of both structural equation models to indicate the model that best fits the problem of measuring the satisfaction of residential consumers with electricity concessionaires and licensees. The sample used in the survey contained questionnaire responses from 86,175 individuals considering the period from 2014 to 2018. The constructs evaluated were satisfaction, quality, value, loyalty, and trust. A confidence interval analysis shows that all weights are significant, demonstrating the importance of all the indicators that represent the constructs. The trust, quality, and value constructs can explain 74.4% of the satisfaction construct variability, so this relationship’s explanatory capacity is considered substantial. Finally, the evaluation of the performance of the service provided by the electric energy concessionaires/licensees, measured by customer satisfaction, allows for the continuous improvement of services, and meeting, even if minimally, the expectations of its consumers.

O trabalho consiste na avaliação qualitativa, através do Índice de Qualidade de Água (NSF) do Ribeirão São Bernardo, localizado no município de Mineiros - GO, sob o ponto 22 K 291081 E 8039143 S (UTM), com altitude média de 770m. Os Índices de Qualidade de Água foram calculados com dados do parâmetro DBO (5,20), OD, Coliformes Termotolerantes, pH, Nitrogênio Total, Fósforo Total, Temperatura, Sólidos Totais Dissolvidos e Turbidez. A Avaliação é feita com cruzamento de dados dos IQAs obtidos e análise de usos do solo entre agosto de 2007 e outubro de 2013. Os valores para os IQAs se apresentaram como “Bom” ou “Ótimo” em todas as campanhas de monitoramento estando de acordo com a condição da qualidade da água apresentada no período de estudo.

Esta pesquisa aborda a importância da utilização de sistemas de drenagem sustentável, a fim de diminuir problemas como alagamentos e comprometimentos dos cursos d’água. Dessa forma, o objetivo geral é investigar sobre a contribuição ambiental das calçadas ecológicas na região do Parque Flamboyant localizado na zona urbana de Goiânia - Goiás. Para o levantamento de dados, foram feitas pesquisas bibliográficas, levantamentos em campo com registros fotográficos, consultas à órgãos públicos e ensaio de infiltração realizado no Parque para verificar a eficiência da permeabilidade dos pavimentos intertravados. Os resultados dos ensaios nos pavimentos apresentaram valores satisfatórios em vista de locais impermeáveis.

Background: Waste picking is essential to urban recycling systems in emerging economies, but it is often performed under informal conditions and high physical demands, especially when collection and transport rely on human-powered vehicles. Objective: To assess the ergonomic conditions of a solid-waste picker using a human-powered vehicle in Macapá, Amapá, Brazil. Methods: A mixed-methods single-case study ( n = 1) was conducted during two real work routes. Direct observation was combined with NASA-TLX, RULA, OWAS, and the Nordic Musculoskeletal Questionnaire (NMQ). Ethical approval was obtained from a competent Research Ethics Committee. Results: The worker reported high perceived workload, with a NASA-TLX global score of 85.33, mainly driven by physical demand, effort, and frustration. Observations showed frequent trunk and knee flexion, sustained pushing and pulling, and variable load handling under conditions of persistent mechanical instability of the cart. The representative posture showed trunk flexion of approximately 75°. Postural analysis indicated critical conditions, with a RULA score of 7 and OWAS action category 4. The NMQ revealed symptoms predominantly in the lower back, shoulders, and lower limbs. Conclusions: In this case, waste picking with a human-powered vehicle showed unfavourable ergonomic conditions. Persistent traction belt instability, inadequate load handling, and irregular terrain intensified physical demands. The findings support work redesign measures, including improvements in vehicle design and task organisation, to reduce biomechanical overload and support safer work in informal settings.