JOURNAL OF BIOENGINEERING, TECHNOLOGIES AND HEALTH

A Bed-Management System Proposal for the Urgent and Emergency Care System of a Municipal Health Network in Brazil: Technical Proposal and System Architecture

Giovanna da Conceição Gomes — 2026-02-25

In many municipal networks, bed availability is still updated manually across non-interoperable systems, which causes delays, rework, and misallocation. This article presents a technical architecture and implementation blueprint for an Internet of Medical Things (IoMT)-enabled Emergency Medical Services (EMS) integrated real-time bed management system. Bed-mounted load cell sensors infer occupancy and temporary unavailability, reconcile these states with hospital information systems, and publish updates in real time to the bed management dashboard and to the Mobile Emergency Care Service (SAMU, Brazil’s EMS). This replaces manual status calls and improves the accuracy and speed of bed availability communication. The approach aligns with the cybersociety and IoMT concepts and provides a continuous data stream for hospital quality indicators. In this proposal, the accumulation of data over time enables strategic analysis that supports resource optimization and continuous improvement in health services.

Study of Compressive Strength and Water Absorption in 3D Printed PLA Scaffolds for Bone Regeneration

Joanne Graziela Andrade Mendes — 2026-02-25

This work investigates the use of polylactic acid (PLA) scaffolds manufactured by 3D printing (FDM) for bone tissue engineering, in order to overcome the limitations of treatments for bone defects. The aim was to evaluate the influence of different extrusion temperatures (180°C and 200°C) and filling rates (40%, 60% and 80%) on the water absorption and compressive strength of the structures. For this purpose, PLA scaffolds were printed and subjected to water absorption (ASTM D570) and compressive strength tests (ASTM D695-10). The results showed a clear inverse correlation between the properties: increasing the filler increased the mechanical strength but reduced the water absorption capacity. Scaffolds with 40% filler showed the highest absorption (up to 90.48%), while those with 80% exhibited the highest strength and lowest absorption (10.69%). The temperature of 200°C promoted a slight increase in mechanical strength due to better fusion between the layers. It is concluded that adjusting the printing parameters allows the properties of scaffolds to be modulated, balancing mechanical support and functional porosity to optimize performance in specific biomedical applications.

Ecotoxicological Evaluation of Aquatic Environment Contamined by Diesel and Biodiesel Using Daphnia similis as Test Organism

Clara Rodrigues Pereira — 2026-02-25

This study aimed to evaluate the ecotoxicity of an aquatic environment contaminated with Diesel S10 and Biodiesel B100, using Daphnia similis as the test organism. For this purpose, ecotoxicological tests were performed based on the ABNT NBR 12713 standard, during which the Daphnia were exposed to different test solutions of the fuels for 24 and 48 hours. The results demonstrated that exposure to Diesel S10 caused significantly more severe effects than exposure to Biodiesel B100. These data highlighted that Diesel S10 has a higher toxic potential in aquatic environments than Biodiesel B100.

Sustentoy: A Pedagogical Manual for Building Toys with Recyclable Materials

Davi dos Santos da Rocha — 2026-02-25

This study investigates the impact of a pedagogical activity involving the construction of toys from recyclable materials on the development of socioemotional and cognitive skills, with a focus on consolidating soft skills among high school students in technical education. The main objective was to stimulate creativity, teamwork, concentration, problem-solving, and manual dexterity through interdisciplinary workshops aligned with educational guidelines emphasizing sustainability and student protagonism. A descriptive quantitative method was used, with data collected via questionnaires administered to first-year technical students during integrated workshops. The activity involved collaborative prototyping of sustainable toys, combining discussions on environmental awareness with practical tasks focused on planning, designing, and assembling products from discarded materials. Results indicated promotion of creativity, improvement in motor coordination, and enhancement of social sensitivity, as students collaborated effectively and adapted to challenges during toy construction. The project strengthened responsibility, engagement, and teamwork while fostering empathy and reflection on sustainable practices. Some students showed difficulty maintaining focus, suggesting the need for adjustments such as dividing tasks into smaller stages and incorporating reflective pauses. Overall, participants expressed motivation to engage in future projects, demonstrating the effectiveness of manual, creative, and cooperative practices for fostering socioemotional competencies. These findings highlight the value of experiential, interdisciplinary approaches for strengthening soft skills, promoting environmental education, and preparing students to face contemporary societal challenges in line with the Brazilian National Common Curricular Base (BNCC).

Morphological Development of Agave Under Different Planting Layouts

Walleska P. Medeiros de Oliveira — 2026-02-25

Agave is a perennial xerophytic plant with CAM metabolism, adapted to arid and semiarid regions. This species represents a promising option for the utilization of Brazil’s northeastern semiarid, a region scarcely explored for cultivation due to adverse edaphoclimatic conditions. Despite the widespread ornamental use of agaves and succulents, little is known about seedling production characteristics, especially regarding nutrition in the early months of establishment. Therefore, this study aimed to plant Agave seedlings from suckers and bulbils. The field experiment was conducted in Conceição do Coité - BA, in a 255 m² experimental area arranged in a randomized block design (9 × 4), using Agave sisalana seedlings from suckers and bulbils, as well as hybrid 11648 seedlings from bulbils measuring 30 cm in length. Results showed that proper management, including fertilization and irrigation, is essential for Agave development. Bulbils demonstrated greater vigor and morphological performance, with a possible growth peak observed at 270 days after planting.

Structural Analysis and Optimization of a Baja Vehicle’s Engine Support Using the Finite Element Method

Igor Palma Lubarino — 2026-02-25

This work presents the structural analysis of the engine package in a BAJA prototype. Three distinct design configurations were evaluated: (1) the initial engine package; (2) the engine package without the firewall tube; and (3) the engine package without the vertical tubes. Simulations encompassed assessment of deformations, Von Mises stresses, combined tensile/compressive stresses, and buckling modes. All configurations demonstrated satisfactory performance, with high safety factors and stresses well below the yield strength of AISI 1020 steel, the material selected for its favorable mechanical properties, machinability, and widespread structural use in the automotive sector. Configuration (2) achieved a mass reduction of 1.04%, while configuration (3) reduced mass by 0.78%, both maintained the required structural integrity and performance for the intended application.

Implementation of an Immersive Environment with 360º Video at SENAI CIMATEC: an Experience Applied to Engineering

Regiani Coser Cravo — 2026-02-25

This article presents the experience of conception, development, and implementation of CIMATEC 360º, an immersive environment based on 360º videos conceived to support the teaching of engineering. In this context, the aim was to analyze the development and application of 360º videos as an immersive resource for engineering education, based on practical experience conducted at SENAI CIMATEC. This is a qualitative research study, outlined as a case study, that followed all stages of the process, from the definition of the theme and the preparation of the scripts, through the capture and editing of the material, to the structuring of the interface together with the availability of the solution. In summary, the development integrated, in an articulated manner, pedagogical objectives related to contextualized learning and technological requirements focused on compatibility and usability on multiple devices, including computers, mobile devices, and virtual reality (VR) headsets. The resource allows the student to virtually explore laboratories and institutional facilities, fostering the understanding of processes, the connection between theory and practice, engagement, and autonomy in learning. The results obtained indicate that the use of 360-degree videos represents a viable and scalable strategy to enrich engineering education, although it still faces challenges related to the need for a stable connection, variations in performance depending on the device, and the absence of complementary interactive elements. The evidence gathered points to prospects for improvement, such as the adoption of adaptive streaming techniques, optimization of file compression, and incorporation of interactive resources that expand the possibilities of navigation and conceptual deepening.

Potential Use of Amazon River Sediments in Civil Construction: Environmental and Socioeconomic Perspectives

Gleice Maria Araujo Ribeiro — 2026-02-25

It is estimated that the Amazon River transports 1.2 billion tons of sediment annually from the Andes. Research indicates that Amazon sediments can be used in the production of mortars, concrete, and other construction materials, exhibiting favorable physical and mechanical properties. To contribute to this topic, this article explores the potential reuse of Amazon River sediments in civil construction, highlighting their capacity to promote sustainability and reduce environmental impact. Physical, chemical, and mineralogical analyses of the sediments were conducted, confirming their composition rich in quartz and clay minerals. The results of the analyses confirm other studies as an excellent raw material for production in the construction industry.

Territory Mapping as a Citizen Education Tool: A Community Extension Approach from SENAI CIMATEC University

Marilda Ferreira Guimarães — 2026-02-25

In 2018, the Ministry of Education implemented Resolution No. 7, which establishes guidelines for extension in Higher Education and makes it a part of the curriculum. This new model seeks to strengthen the social commitment of Higher Education Institutions by promoting social participation. At SENAI CIMATEC University, university extension was restructured with the creation of the Community Extension Center (NEC) in 2024. The NEC works to develop extension programs that incorporate the principles of Popular Education and Citizen Education, promoting social development and integrating teaching and research. To identify community needs, the NEC adopted the Territory Mapping tool, in which students conduct a sociocultural assessment of the location, understanding its physical, political, and cultural dimensions. The territory mapping was conducted by Mechanical Engineering and Data Science and Artificial Intelligence students between March and July 2025. This work aimed to report on the experience of the NEC team and the students, addressing the main stages of the mapping, student feedback, and the identification of potential projects. The first part of the mapping investigated basic infrastructure and environmental and cultural aspects. The second part addressed community participation, economic issues, security, and cultural manifestations. The most frequently identified cultural manifestations were music, dance, sports, graffiti, and crafts. Through their experience reports, the students demonstrated their involvement and knowledge of local realities. Territory mapping proved to be an effective tool for civic education, allowing students to connect with the realities of their communities and awakening the desire to develop relevant extension projects. The mapping results, including the identification of infrastructure, environmental risks, and cultural manifestations, will serve as a basis for future extension projects, strengthening the relationship between teaching, research, and extension, in line with the objectives of SENAI CIMATEC University.

Comparison of the Value Chain of Steel Inserts for Multi-Cavity Tools Manufactured Additively and Conventionally Using Flexsim

Armando Sá Ribeiro Junior — 2026-02-25

The tooling sector is essential for industrial development, providing tools and molds that directly influence the efficiency and competitiveness of industries. In Brazil, low productivity meets only 50% of domestic demand, requiring imports. The main obstacles include lack of modernization, shortage of professionals, inadequate management, and inefficient use of resources. The development of injection molding tools is expensive, time-consuming, and resource-intensive; additive manufacturing emerges as an alternative for faster production. However, there is a lack of effective methods for choosing the ideal technology for each project. Computer simulation allows the emulation of production chains with additive and conventional technologies, enabling economic analysis and the identification of bottlenecks. In this article, FlexSim was used to model a 32-cavity mold and compare the results with those obtained in Tecnomatix Plant Simulation. The systematic review supported the simulation methodology, and the results indicated that conventional manufacturing had higher productivity and lower manufacturing costs.

Textile Waste in Civil Construction: A Systematic Review of Applications and Benefits

Maria Luiza Marques Rapold Souza — 2026-02-25

This work is a systematic review based on the PRISMA protocol, used to evaluate the use of polymeric materials with textile waste in civil construction. The research was conducted using a search strategy across three databases (Web of Science, Scopus, and ScienceDirect), with a focus on studies published within the last 5 years. The keywords used in these searches were: “Composites AND Architecture AND textile waste.” Subsequently, screening and exclusion criteria were established and applied to the group of articles to organize and select the most relevant ones according to the theme. At the end of the analysis of the selected articles, a comparison was made regarding the uses and trends of recycled textile material as a basis for new technologies aimed at greater sustainability in civil construction.

Artificial Intelligence Applied to Last-Mile Logistics: A Systematic Review

Leticia Bartilotti de Queiroz — 2026-02-25

Last-mile logistics is one of the biggest challenges in the modern supply chain, especially due to the rise in e-commerce and the high demand for fast and efficient deliveries. In this context, it is observed that Artificial Intelligence (AI) has stood out as a promising solution to optimize routing in this delivery process, improving the distribution of resources and dynamically adjusting routes. With the aim of analyzing and mapping AI techniques applied to last-mile logistics, this study developed a systematic review combined with a bibliometric and qualitative analysis. This methodology uses the strategy of searching and collecting works on a specific topic, evaluating their scientific relevance through the PRISM 2020 flowchart. Based on the results, it is concluded that AI applied to the last mile has the potential to reduce costs and increase operational efficiency and customer satisfaction.