The replacement of native vegetation may alter soil organic matter (SOM) quality and nitrogen (N) dynamics, because N is one of the main constituents of SOM. This study evaluated N content and stocks in humic fractions across different soil layers (0.00–0.50 m) of a Plinthosol in Tocantins State, Brazil, under different land uses: native Cerrado forest (control), eucalyptus, agriculture, and pasture. Soil samples were collecte...

This study investigates the length–weight relationship, growth patterns, and population structure of Prochilodus nigricans in a tropical river environment, providing biometric information relevant to ecological studies, fisheries assessment, and conservation planning. A total of 139 individuals were sampled across rainy and dry seasons, and biometric variables (BD—Body Depth, TL—Total Length, SL—Standard Length, TW—Total Weigh...

The effects of oral inoculation with a probiotic containing Rhodotorula mucilaginosa and Trichoderma longibrachiatum were evaluated during the first 60 d of life in Gir x Holstein dairy calves across two seasons. Twenty calves were assessed in northern Minas Gerais, Brazil ( n = 10 in period 1, late winter–spring; n = 10 in period 2, late summer–autumn). The study used a 2 × 2 factorial arrangement with probiotic supplementati...

Aims Silicate rock powders can enhance nutrient availability through rhizosphere-mediated mineral weathering. Although organic acids mediate this process, how soil fertility shapes their interactions with rhizosphere microbial communities and nutrient release remains poorly understood. He, we evaluated how contrasting soil fertility influences rhizosphere organic acids, microbial communities, and nutrient release from silicate...

Water transfer projects between river basins have been globally adopted as strategies to mitigate water scarcity, especially in semi-arid regions. Although their socioeconomic benefits are widely recognized, the ecological effects of these interventions on aquatic ecosystems remain poorly understood. This study investigated how artificial connectivity between reservoirs influences the taxonomic and functional structure of zoop...

Among the most cultivated crops worldwide, potato ( Solanum tuberosum) faces significant threats from water scarcity, owing to its shallow root system and high irrigation requirement. Water deficit disturbs homeostasis and critical physiological mechanisms, including photosynthesis, carbohydrate translocation, and starch metabolism in tuberous plants. It reduces CO₂ assimilation, modulates the expression of key enzymes involve...

Purpose The European Medicines Agency (EMA) guideline Declaration of Storage Conditions in the Product Information of Medicinal Products (CPMP/QWP/609/96/Rev.2) was last revised in 2007. Since then, advances in stability science, increased climatic variability, and evolving regulatory expectations have highlighted limitations in the framework, particularly the use of vague descriptors such as “room temperature” or “no special...

Fiber cement is widely used in the construction industry due to its satisfactory physical and mechanical properties. However, the need to enhance these characteristics has driven research focused on the development of new additives and the optimization of manufacturing processes. In this context, the present study aimed to develop and evaluate extruded fiber cement composites reinforced with Erythrina poeppigiana particles. Th...