Alexandre Da Silva results 764
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Integrating the Classical and Molecular Approaches Toward Passion Fruit Resistance Against CABMVNARA Subscribed
Passion fruit, a tropical species cultivated across various nations, faces challenges in expanding its cultivation areas due to several constraints, including total crop losses, caused by the fruit woodiness virus. In Brazil, this condition is attributed to the cowpea aphid-borne mosaic virus (CABMV), and currently, no passion fruit cultivars are resistant to this virus. This study integrates classical breeding and molecular a...
Background Cardiovascular diseases are the leading cause of death worldwide. An important mechanism involved is the disruption in protein homeostasis by overactivation of the classical axis of the renin-angiotensin system. The counterregulatory axis counteracts these effects; however, the MrgD receptor has recently been described, and its effects are unknown. Thus, this study aims to evaluate the impact of MrgD deficiency on c...
Bat-borne coronaviruses are of increasing interest due to their potential for zoonotic spillover, particularly within the Betacoronavirus genus. Partial genomic sequences related to MERS-like CoV was identified in multiple hosts, including humans, camelids, and bats from the families Vespertilionidae and Molossidae. In this study, we investigated the presence of coronaviruses in 65 Molossus molossus bats captured in southern B...
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...
Productive, metabolic and economic responses of Nellore young bulls fed diets with different non-protein nitrogen source combinationsNARA Subscribed
Nutrition is a key determinant of performance, carcass traits, and production efficiency in beef cattle. In this context, feed additives have emerged as a promising strategy to enhance nutrient utilization and reduce production costs. We aimed to evaluate the effects of replacing urea with a product extruded urea enriched with essential oils (NFeed ® ) on nutrient intake, performance, blood parameters, and feed cost in feedlot...
The Asian Green Mussel Perna viridis in the Canal do Itajurú, Brazil: Establishment in a Hypersalinity-Influenced Coastal ChannelNARA Subscribed
The Asian green mussel, Perna viridis , is a globally successful invasive bivalve first recorded in the South Atlantic in 2018. Here, we report and characterize the establishment of P. viridis in the Canal do Itajurú, a coastal channel connecting the hypersaline Araruama Lagoon to the Atlantic Ocean in Rio de Janeiro, Brazil. We assessed its spatial distribution, substrate association, and morphometric variation to evaluate lo...
Bioprospecting Amazonian yeasts for ethanol and xylitol production from sugarcane bagasse hydrolysateNARA Subscribed
The untapped microbial diversity of the Amazon region represents a strategic frontier for biotechnological applications. This study screened, identified, and evaluated the potential of yeasts isolated from Amazonian environments to bioconvert sugarcane bagasse hydrolysate into ethanol and xylitol. The lignocellulosic hydrolysate was obtained by thermochemical treatment using H 2 SO 4 (0.78% v/v) at 121 °C for 68 min, with a 20...
The seasonality of forage production is one of the main challenges in semi-arid regions, where environmental conditions limit agricultural productivity. One promising option is the use of elephant grass ‘BRS Capiaçu’, together with deficit irrigation. This study evaluated the impact of different irrigation depths with brackish water (50%, 75%, 100% and 125% of the reference evapotranspiration – ET 0 ) on the productive, physio...
Urban expansion across a mountain-to-coastal gradient and its implications for hydrogeomorphic risk in Port-au-Prince, HaitiNARA Subscribed
Rapid urban growth can intensify flood hazard when land-cover change alters runoff production on slopes and concentrates drainage toward occupied lowlands. We assessed this process in the Port-au-Prince Arrondissement, Haiti, by combining a 30 m digital elevation model and geomorphon classification with Landsat 8 land-use and land-cover maps for 2015, 2020, and 2025, a 10 m Sentinel-2 map for 2025, weighted flood-susceptibilit...
Adopting resilient practices is crucial to balancing food production and crop sustainability in semiarid regions. Therefore, adopting systems that provide greater stocks of water, carbon, and nutrients at the soil-plant interface is crucial. The objective of this study was to assess water, carbon, and nutrient stocks in the soil-plant systems of irrigated forage crops in the semiarid region of Brazil. The study was conducted i...