Agricultural machinery telemetry collects and shares data, which are sent remotely and become precious information. Thus, accurate and instantaneous monitoring can provide an important base of information for adjusting the parameters of the most diverse mechanized agricultural operations, reducing input costs and maintenance expenses. In recent years, this theme has gained more strength and importance for managing rural properties. Therefore, the present study developed a bipartite bibliometric analysis in two lines of research and described the state of the art of this data collection methodology (via telemetry), presenting its technological evolution. The study presents the evolution and connection of telemetry and the processes of robotization of agricultural operations and automation provided by data collection via telemetry in real time. The main countries, keywords, researchers, institutions, and the Dickson quality index indicate a high growth in the last decade. Thus, the present study contributes to decision making regarding research topics, guidance on the state of the art, and contextualization of telemetry’s importance in current research.

Due to the structural constraints of wheelchairs for users with motor disabilities, it is essential to understand and ensure their proper functioning for the quality of life of these users. The main objective of this study is to analyze the stresses and displacements in a wheelchair using the finite element method to evaluate its functional and structural aspects though simulations. Influenced by normative techniques that consider ergonomic, anthropometric and biomechanical, factors were considered to verify the compliance of this equipment considering current standards. Results were compared with experimental analyses performed by the Brazilian National Institute of Metrology, Quality and Technology (INMETRO). Results showed that von Mises stress limit values were exceeded in the chair frame by 6.5%, in the collision analysis by 72.1%, and in the footrest by 189.4%. This indicated that the structure of the analyzed wheelchair is not adequated based on simulation results, same as INMETRO reports.

The flavor, aroma, and color of coffee can be changed due to mechanical damage, reducing its quality. To measure the mechanical behavior of the fruit, compression tests can be performed at different stages of ripeness. In this study, we analyzed the deformation, strain energy, and von Mises stress of coffee fruits at mature, semi-mature, and immature stages under compression forces. Compression in three directions (x, y, and z) was simulated on coffee fruit models using the finite element method. A compression support was applied in the opposite direction to the force application axis. Numerical simulations of the compression process allowed us to verify that the more mature the fruit, greater the associated mean deformation (2.20 mm mm⁻¹, 0.78 mm mm⁻¹, and 0.88 mm mm⁻¹), the lower the mean strain energy (0.07 mJ, 0.21 mJ, and 0.34 mJ), and the lower the mean equivalent von Mises stress (0.25 MPa, 1.03 MPa, and 1.25 MPa), corresponding to ripe, semi-ripe, and immature fruits, respectively. These analyses not only save time and professional resources but also offer insights into how strain energy and von Mises stress affect fruits at different maturation stages. This information can guide machine adjustments to reduce coffee harvesting damages.

The difficulty of designing equipment for individuals who have some degree of special needs is that each individual has a unique clinical picture, hampering the development of new technologies. In this sense, this article explores the ways in which the design and evaluation of virtual devices can be combined with new prototyping techniques to create and develop equipment that will allow wheelchair accessibility to be improved. To this end, a computer vision control structure and a virtual software were created to assist in the development of a wheelchair coupling project, in order to study and evaluate the functional characteristics of the device. In this way, the present work incorporates a virtual system that represents the automation and mechanical design of new wheelchairs. Thus defining a prototyping methodology with the aid of virtual environments, based on movement controls adaptive to the parameters stipulated in real environments. Therefore, the present work results in a simulator for an electric wheelchair docking platform for multiple disabilities, which allows the validation of the project, the acquisition of development needs, the proposition of improvements in the preliminary acquisition platform and a system of computer vision control.

O câncer de mama apresenta elevado índice de mortalidade em todo o mundo, sendo o mais incidente em mulheres. Seu diagnóstico tendo sido realizado por meio de rastreamento, ecografias mamárias e mamografias. Este trabalho tem como objetivo desenvolver um classificador para identificar o câncer de mama utilizando dados antropométricos e parâmetros de exame sanguíneo de rotina que são os biomarcadores. Redes-Neurais do tipo Perceptron Multi-Camadas(MLP) e as redes Neuro-Fuzzy (ANFIS) empregados a um comitê de decisão, trazendo como resultado uma classificação do câncer de mama, com acurácia de 97\% , um valor superior apresentado comparado aos trabalhos dos últimos anos que utilizaram biomarcadores semelhantes no período de 2013 ao início do ano de 2018.

A Revista Ciência Agronômica é voltada para estudos relacionados com as Ciências Rurais e Recursos Naturais