Universidade Estadual de Feira de Santana

Selection processes in academic institutions and public organizations are frequently managed through email and spreadsheets, creating legal vulnerabilities, version-control errors, and data protection non-compliance. This paper presents avalia+Tec, an open-source SaaS platform that enforces cryptographic integrity verification (SHA-256), tamper-evident hash-chained audit trails with external RFC 3161 timestamp anchoring, and end-to-end traceability for selection workflows. The system operates through a responsive web portal for candidate submissions and administrative oversight, and an Electron-based desktop application for structured blind evaluation. A preliminary single-institution deployment at Universidade Estadual de Feira de Santana processing 60 submissions with 6 evaluators was associated with a 65% reduction in review-to-decision cycle time (95% CI: [55%, 73%], Mann–Whitney U = 0 , p = 0.029 , r = 1.0 ), no formal candidate disputes during the observation period, and a 45.4% reduction in evaluator time per submission (95% CI: [26%, 59%]). The platform provides technical controls supporting regulatory compliance with Brazil’s LGPD. The scientific contribution resides not in novel cryptographic primitives but in the systematic integration engineering of well-established techniques to address a concrete, underserved institutional governance problem. avalia+Tec is freely available under the MIT License. • Auditable selection workflow using SHA-256 hashing and tamper-evident hash-chained logs. • HMAC-SHA256 signatures ensure integrity in blind peer-review scorecards. • Automation was associated with a 65% reduction in administrative cycle time. • External RFC 3161 timestamp anchoring strengthens tamper-evidence beyond internal controls. • Technical controls supporting LGPD compliance via role-based data segregation and automatic PII redaction.

T-joints are widely used in the construction industry, and they provide safety and economic viability as a structural design solution for the formation of monolithic structures. In the design phase, the analysis of T-joints in welded steel structural elements is carried out by calculating the acceptable dimensions of the weld beads or by determining the strength capacity of the joints. In this context, computational modeling can suggest appropriate solutions for engineers as part of structural design analyses. The objective is always to obtain the stress at the point of interest and/or where the value is typically a maximum. Based on this premise, this article presents an analysis of the joints of perpendicular plates under torsion, using computational modeling with the finite element method, with the aim of determining the maximum shear stresses. The results are obtained with three-dimensional (3D) tetrahedral and hexahedral solid elements. It is shown that the maximum shear stress diminishes by 75% when the weld bead length is doubled, and that this is situated at a higher distance from the connection center. The results provided here can serve as a paradigm for other geometric conditions because users can interpolate the heights and thickness of the vertical plates for the case they have.

Summary Macroptilium comprises approximately 20 species native to the Americas. Eleven of these have been recorded in Bolivia, representing all three currently recognised sections. This article describes an additional species for the country, Macroptilium chuquisacense . This new species is recorded from Chuquisaca and is currently represented by only two collections, which, morphologically, most closely resemble Macroptilium prostratum . It is primarily distinguished by its lanceolate leaflets with a sericeous indumentum, flowers approximately 6.5 mm long with petals described as lilac and sericeous floral bracts that exceed the length of the buds at the apex of the inflorescence. A detailed morphological description, illustrations, taxonomic notes, distributional data and an identification key to the Bolivian species of Macroptilium are provided.

O estágio supervisionado é um momento durante a formação inicial que oportuniza ao licenciando vivenciar os desafios da profissão docente em seu contexto natural. Nessa vivência, o professor supervisor exerce um papel fundamental na integração dos licenciandos na escola durante os estágios. Com base nisso, nesta pesquisa buscamos caracterizar as condições de acolhimento oferecidas por supervisores na formação inicial de professores em um curso de Licenciatura em Química, a partir das vozes dos próprios supervisores. Com este objetivo, entrevistamos quatro professores que costumam ser supervisores de estagiários de Química. As entrevistas semiestruturadas foram gravadas em áudio e transcritas, originando os dados empíricos desta pesquisa. Na análise dos dados, utilizamos como abordagem metodológica a Teoria Fundamentada nos Dados na versão reelaborada por Anselm Strauss e Juliet Corbin, que inclui os processos de codificação aberta, axial e seletiva com o intuito de construir uma teoria substantiva sobre o fenômeno investigado. Os resultados evidenciaram que o acolhimento é influenciado pelo distanciamento entre a universidade e a escola, bem como pela falta de comprometimento de alguns estagiários. Esse distanciamento gera insegurança nos supervisores e desconfiança em relação à qualidade da formação inicial, impactando negativamente o acolhimento. Ademais, os supervisores têm experienciado uma sensação de desamparo e de sobrecarga de trabalho durante os estágios. Baseados nesses resultados, destacamos a necessidade de políticas públicas que estabeleçam as funções a serem cumpridas e que assegurem as condições adequadas para os supervisores nesse processo.

The ant Azteca paraensis bondari lives in association with epiphytes in a structure called ant-garden and exhibits trophobiotic interactions with hemipteran species: scale insects (Coccoidea) and other sap-sucking insects. The complexity of these interactions is not fully defined, so this study aims to describe the nesting mode, territorial occupation, and mutualistic interactions around the ant garden system involving A. paraensis bondari. Our observations were carried out in a cocoa agroecosystem in the southern region of the state of Bahia, Brazil. Four ant-gardens of A. paraensis bondari were observed for 32 h. Each colony presented two types of interactions with hemipteran species and two with epiphytes. The trophobiont scale insect Coccus viridis (Coccidae) was common to all observed colonies, as this scale insect uses the epiphyte Codonanthopsis uleana (Gesneriaceae) as its food source. The other hemipteran species found associated with the ants are different between the colonies observed. Ants use food resources obtained from epiphyte floral and extrafloral nectaries, in addition to participating in the plant dispersal; they also use honeydew from the scale insects or other Hemiptera they tend. In turn, ants provide nutrients to epiphytes through the organic compost they depose on the ant-garden, actively prey on insects on the host plants and certainly provide dispersion and defense to the scale insects. Our results highlight the remarkable diversity of biotic interactions associated with A. paraensis bondari, forming a microcosm known as the “ant garden”. This system facilitates nutrient cycling in suspended soils and involves a variety of insects and epiphytes. Additionally, the polydomous structure of the ant colonies contributes to maintain this microcosm in a relative stable equilibrium within the ant’s territory. To safeguard A. paraensis bondari and its ecological functions, we recommend the establishment of monitoring programs to protect existing colonies and the promotion of agroecological practices that enhace biodiversity within cocoa farms.

Brazil is one of the world's largest food producers, but it remains dependent on the import of phosphate fertilizers. In this context, national phosphate deposits gain strategic importance, such as the Sapucaia Mine (Pará, Brazil), which hosts the first aluminous phosphate deposit in Brazil and the second in the world. Through lithological, petrographic, geochemical, and gamma spectrometric analyses, the Sapucaia Mine represents an important case study for understanding the genesis and evolution of phosphate mineralization. The profile was divided into three units from base to top: (1) a clay unit, with an aluminosilicate-rich facies dominated by kaolinite and zoned phosphates such as crandallite group minerals; (2) a phosphate-rich unit, characterized by a mineralogical association of amblygonite, wavellite, woodhouseite-svanbergite, and crandallite-goyazite series; and (3) an iron-phosphate crust, rich in iron oxides, ankerite, dufrenite, triphylite, and wavellite fillings. Strongly peraluminous signatures (A/CNK > 2), enrichment in rare earth elements (REEs), Sr, and Ba, as well as a negative Eu anomaly in REE patterns, are inferred as compatible with S-type magmatic sources. Botryoidal and colloform textures, pseudomorphic substitutions, and altered mineral features indicate a polygenetic regolithic system. The correlation between petrographic and geochemical data suggests at least three genetic processes: (i) a lithium-bearing igneous phase, associated with the intrusion of a granitic-pegmatitic body; (ii) a late-magmatic/hydrothermal phase, with significant mobilization of alkaline-earth metals; and (iii) a supergene phase, characterized by intense weathering in a tropical climate, with dissolution and reprecipitation of phosphates and clay minerals. The Sapucaia Mine constitutes a unique geological example of phosphate enrichment in peraluminous granitic terrains exposed to tropical weathering conditions, with potential applications for the exploration of analogous deposits in northern and northeastern Brazil.

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Resumo: objetivo: Identificar e mapear as variáveis que interferem na experiência do paciente em ambiente hospitalar. Método: Trata-se de uma Scoping Review sobre a experiência do paciente em âmbito hospitalar, visando mapear conceitos-chave, sintetizar evidências e identificar lacunas na literatura. As buscas incluíram palavras-chave em títulos e resumos, em cinco bases de dados, entre 2018 e 2024, nos idiomas inglês, português e espanhol, considerando o público adulto. Resultados: Foram encontrados 1906 estudos; após a remoção das duplicatas, restaram 1538 artigos. Após análise de títulos e resumos, 42 foram selecionados e, posteriormente, 14 artigos atenderam aos critérios de inclusão. Todos abordaram variáveis multifatoriais que impactam a experiência do paciente. Conclusão: O estudo evidenciou que uma experiência satisfatória do paciente está associada à atuação das equipes de enfermagem e médica, destacando-se a competência técnica, a comunicação eficaz, o atendimento personalizado e a escuta ativa.