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Análise da implementação do Portal Nacional das Contratações Públicas no município de Campo Belo-MG a partir da abordagem de capacidades estatais
(Universidade Federal de Lavras, 2025-06-30) Dutra, Gisihelle Aparecida Santiago Rogana; Oliveira, Denis Renato de; Ferreira, Patrícia Aparecida; Pascuci, Lucilaine Maria; Pereira, José Roberto; Grin, Eduardo José
Although the federative pact has sought to guarantee autonomy to subnational entities, in Brazil a top-down process of public policy implementation still prevails, often disregarding the municipalities’ level of preparedness. In this context, considering the requirements of Law No. 14,133/2021 for the adoption of an open data model in the management of public procurement and contracting procedures, the objective of this research was to analyze the challenges faced by the municipality of Campo Belo–MG in implementing the National Public Procurement Portal (PNCP), seeking to understand the main elements of state capacity—within its technicaladministrative, fiscal, and political-relational dimensions—that must be considered in this process. More specifically, the study aims to describe how the PNCP implementation process has unfolded in Campo Belo–MG; to identify, from the perspective of local managers, the main factors that either hinder or facilitate the implementation of the PNCP in the municipality; and to assess the municipality’s level of preparedness in terms of technical-administrative, fiscal, and political-relational capacities for the implementation process. This research is a descriptive and exploratory case study that employed document analysis, participant observation, and semistructured interviews as data collection instruments. After content analysis, the results revealed that, from a technical-administrative standpoint, the municipality has qualified and proactive civil servants whose technical skills, experience, training, and level of autonomy are adequate for handling the demands of the new Public Procurement Law (NLLC). However, technological challenges and shortcomings in the internal management system’s support still hinder the full operationalization of the PNCP. Regarding the political-relational dimension, inconsistencies were detected in data entry on the Portal and a lack of integration between the internal system and technical-legal recommendations, which resulted in delays in data publication. Accessibility issues were also reported, particularly with the use of information filters, a functionality perceived by public servants as confusing. Finally, from a fiscal perspective, it was found that the increase in municipal revenues was not proportional to the investment in training and technological support during the legal transition period. In summary, although the municipality has a qualified and experienced technical staff, this alone is not sufficient. Investment in capacity building and technological infrastructure does not depend solely on revenue growth. This leads to the conclusion that the implementation of the Portal still requires the strengthening of local state capacities and a more coordinated federative action to achieve the intended goals of transparency and modernization. Although the Brazilian federative pact seeks to ensure autonomy for subnational entities, the predominantly vertical form of policy implementation still poses challenges to the effectiveness of municipal actions, especially in light of the demands introduced by Law No. 14,133/2021.
Adaptabilidade e estabilidade de genótipos de alface americana em cultivo de verão nas regiões de Sorocaba/SP e Mogi das Cruzes/SP
(Universidade Federal de Lavras, 2025-12-05) Hacimoto, Gustavo Takeshi; Azevedo, Sebastião Márcio de; Oliveira, Gustavo Evangelista; Brito, Orlando Gonçalves
This study aimed to identify iceberg lettuce cultivars with greater adaptability and production stability under summer conditions in the macro-regions of Sorocaba/SP and Mogi das Cruzes/SP. A total of 8 experiments were conducted, 4 in Sorocaba/SP region and 4 in Mogi das Cruzes/SP region, each one considered a distinct growing environment. All trials were conducted by commercial growers specialized in cultivation of iceberg lettuce. The trials were transplanted between October and December 2024 and evaluated between November 2024 and February 2025. Seven varieties of iceberg lettuce were used, five standard commercial and two new varieties developed by Enza Zaden company. The experimental design used was a randomized complete block design with 3 replications. The following parameters were evaluated: tassel size, head weight, percentage of marketable plants and disease tolerance. These parameters were subjected to adaptability and stability analysis using the Annicchiarico method. Of the commercial genotypes, COM. 03 stood out positively in relation to head weight and disease tolerance for all environments and favorable environments, while COM. 02 stood out negatively in relation to all parameters. Genotype EXP. 01 showed good results, mainly in unfavorable environments, for head weight and percentage of marketable plants. Finally, material EXP. 02 showed the best results considering tassel size, percentage of marketable plants and disease tolerance, considering favorable and unfavorable environments, thus having greater adaptability and stability among all genotypes under these growing conditions and with greater potential for commercial release.
Assistente inteligente para gestão agrícola por meio de chatbot integrado ao whatsapp com inteligência artificial no monitoramento de lavouras de café
(Universidade Federal de Lavras, 2025-12-02) Andrade, Vinicius Habib; Correia, Luiz Henrique Andrade; Salgado, André de Lima; Reis, Renata Andrade; Estrella, Júlio Cezar
Contemporary agriculture faces the challenge of producing more food with fewer resources, balancing productive efficiency, environmental sustainability, and economic competitiveness. In this context, data-driven management becomes essential to support strategic and operational decision-making in the field. This study proposes and evaluates the use of an artificial intelligence–based conversational agent, integrated with WhatsApp, as a solution to centralize and interpret agricultural information. The developed system organizes climatic, financial, strategic, and operational data, providing accessible and personalized recommendations for farmers, with emphasis on coffee cultivation. The research is situated within the context of smart agriculture, aligned with the principles of Agriculture 5.0, exploring the potential of the Internet of Things (IoT) and artificial intelligence to promote more efficient, sustainable, and data-driven agricultural practices. The results obtained indicate strengthened autonomy of small and medium-sized producers, reduced waste, more rational use of inputs, and improved agricultural productivity.
A produção de significações sobre o Sistema Monetário Brasileiro nas aulas de matemática de uma turma do 4o ano do ensino fundamental
(Universidade Federal de Lavras, 2025-08-29) Silva, Ana Flávia; Caporale, Silvia Maria Medeiros; Gomes, Adriana Aparecida Molina; Ferrari, Fernanda Barbosa
This is a qualitative master's research project that aimed to investigate the production of meanings about the Brazilian Monetary System by a class of 20 fourth-grade elementary school students when they were involved in problem-solving practices and contexts. The researcher (a licensed Pedagogy professional) partnered with a fourth-grade classroom teacher, as the researcher was not yet working in a classroom. Data was collected from October 2 to October 6, 2023, during which 10 classes, each lasting 50 minutes, were conducted (two classes per day). Data was collected through audio and video recordings, students' written work, and the researcher's field diary. Based on this, the intention was to answer the following research question: What meanings about the Brazilian Monetary System are produced by fourth-grade elementary school students when they are involved in a practice mediated by problematizations? And to achieve the following general objective: to investigate evidence of students' production of meanings about the Brazilian monetary system when engaged in a problematizing practice. To achieve this general objective, the following specific objectives were proposed: to understand the movement and processes of producing meanings about the Brazilian Monetary System; to identify the arguments and strategies used by students in Problem Solving; to reflect on the process of becoming a teacher-researcher; and to propose an educational product about the Brazilian Monetary System through the methodological approach of Problem Solving. For data analysis, microgenetic analysis and the historical-cultural perspective were used, drawing on the works of Lev S. Vygotsky and other researchers who follow his line of thought. Two units of analysis were defined: the production of meanings about the Brazilian Monetary System, and the processes of becoming a teacher and becoming a researcher. Through the analysis, it was possible to perceive evidence of the students' meaning-making when they were involved in a problematized practice about the Brazilian Monetary System, based on the strategies and arguments produced during moments of interaction and the students' written work, as well as the production of meanings about teaching by the teacher-researcher.
Descrição Morfológica robusta e primeiros traços ecológicos para a população de Hyalella Smith, 1874 (Amphipoda: Hyalellidae) do Guareí
(Universidade Federal de Lavras, 2025-08-29) Nascimento, Amanda de Serpa; Bueno, Alessandra Angélica de Pádua; Silva, Marconi Souza; Silva, Carolina Vieira da
The present dissertation describes a new species of the genus Hyalella Smith, 1874, and investigates its ecological traits related to population structure and reproductive parameters in a freshwater ecosystem in southeastern Brazil. Variables such as sex ratio, body size, fecundity, and egg volume of females were analyzed. Significant results were observed for the analyzed variables, indicating that environmental factors directly influence life-history strategies. The morphological data collected supported the preparation of a taxonomic article, which resulted in the formal description of the new species. Distinguishing traits from the other 22 species reported for southeastern Brazil include: absence of a curved seta on the inner ramus of uropod 1 in males; sternal gills present on segments 3–7; presence of comb-scales on both gnathopods; gnathopod 2 with two distal plumose setae on the dactylus; uropod 3 with peduncle bearing three cuspidate setae with an accessory seta, and ramus with eight setae; maxilla 1 with seven serrate setae on the outer plate; and telson with four distal cuspidate setae and four lateral plumose setae on each side. Therefore, the results obtained reinforce the importance of environmental conditions in determining population and reproductive characteristics, contributing to the ecological understanding of the genus Hyalella and providing a basis for future conservation efforts.