Fernando Ramos results 369
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Background Bovine mastitis is the most economically significantdisease in dairy farming, with Staphylococcus aureus and Staphylococcus chromogenes asprominent agents, the former posing a major threat. As principal immune sentinels in themammary gland, macrophages orchestrate early pathogen recognition and immune activation,critically influencing the trajectory and outcome of infection. Thus, this study aimed tocharacterize the...
Integrated approaches to atmospheric radionuclide dispersion for emergency management at the Brazilian nuclear complexNARA Subscribed
This study evaluates the potential impacts of hypothetical nuclear accidents at the Almirante Álvaro Alberto Nuclear Power Plant (CNAAA), located in Angra dos Reis (RJ), in the southeastern region of Brazil, through the integration of advanced atmospheric modeling and Geographic Information Systems (GIS). The study area is characterized by complex environmental features, including mountainous terrain, remnants of the Atlantic...
Connectivity and phylogenetic diversity of a fish metacommunity in subtropical coastal lakesNARA Subscribed
Neotropical freshwater biodiversity is remarkable, mainly due to historical, biotic, and environmental processes. Landscape connectivity can promote or restrict species dispersal in fish metacommunities, thereby influencing the diversity and phylogenetic structure of communities. This study evaluated whether structural landscape variables of the Tramandaí River basin affect the phylogenetic diversity of the component communiti...
Harvest Timing and Cold Storage Temperature Modulate Carbohydrate Metabolism, Dormancy, and Sprouting in Seed Potato TubersNARA Subscribed
The physiological quality of seed potato tubers during storage is important for maintaining their subsequent performance. This study evaluated the effects of harvest timing and storage temperature on Asterix and Orchestra seed potato tubers produced in Rio Paranaíba, Brazil. Tubers were harvested on August 10 and September 15, 2024, stored at 1.5, 3.5, or 6.5 °C, and evaluated for up to 120 and 90 days, respectively. Sprouting...
Relevant EU water policy documents, such as the EU Blueprint for Water report (EC 2012) and the European Water Resilience Strategy (EC 2025) call for the development of basin-specific water-use efficiency targets, emphasising the importance of considering the broader impact of individual measures at the river basin level. This study contributes to the discussion on the suitability of basin-wide water-use efficiency targets to...
Optimizing maize–Brachiaria intercropping requires effective weed management with selective maize herbicides. This study evaluated the spray performance and efficacy of atrazine + nicosulfuron for weed management in maize–Brachiaria intercropping, focusing on how droplet classes and spray volumes affect maize growth and yield. The deposition experiment was conducted in a greenhouse in a completely randomized design with six re...
Planktonic ciliates in Neotropical streams: taxonomic and numerical sufficiency and implications for environmental impact assessmentNARA Subscribed
Bioindicators are widely used to describe environmental impacts through rapid and cost-effective assessments. However, identifying them at the species level with detailed quantitative sampling is time-consuming, expensive, and requires specialized knowledge. This study evaluated, using planktonic ciliates, taxonomic and numerical sufficiency approaches to test whether higher taxonomic levels and different numerical resolutions...
The vertical symphony: how pitch perception shapes spatial and affective mapping across different countriesNARA Subscribed
This study investigates the interrelationship between auditory pitch perception, spatial mapping, and affective evaluation in human cognition. We conducted three experiments to investigate the complex relationships between pitch height, spatial localization, and emotional valence. Experiment 1 ( n = 63) revealed a non-linear relationship between pitch height and affective evaluation, with extremely high and low pitches receivi...
Aim We investigate the distribution of dispersal modes — endozoochory (via animal ingestion), synzoochory (via animal seed accumulation) and anemochory (via wind)—and seed mass of woody plants across Brazilian ecosystems, testing whether their relative abundance in local plant communities could be predicted by climate, edaphic factors and dispersal agents (e.g., the main vectors moving seeds). We expected climate to be the mai...
Soil Microbial Diversity and Network Organization Respond to Land Use and Agricultural Inputs WorldwideNARA Subscribed
Soil microbiomes are critical for ecosystem functioning, yet the global influences of climate and agricultural practices on their diversity and structure remain incompletely characterized. Here we analyzed 1921 soil samples from 33 countries worldwide across diverse biomes to assess how climate gradients and agricultural inputs, including pesticides and fertilizers, shape prokaryotic and fungal communities. We found that micro...
Environmental stressors such as poor water quality, overstocking, and temperature spikes force shrimp to divert energy from growth and immunity to maintain homeostasis, increasing their susceptibility to opportunistic pathogens. Despite this risk, information on how these conditions affect viral and bacterial abundance, diversity, and community structure in shrimp farms remains scarce. To address this gap, this study offers a...
This study evaluated the effects of dietary Elionurus muticus essential oil (EMEO) on growth performance, physiological responses, and resistance to car transport stress in Nile tilapia (Oreochromis niloticus). Fish were fed experimental diets for 60 days and subsequently subjected to 6 h of transport stress. Five diets were tested: 0.00 (control), 0.25, 0.50, 1.00, and 1.50 mL EMEO kg−1, in triplicate (10 fish per 500 L tank;...