P.R. Martin results 630
· Newest (Page 1/26, per page 25)
Author: P.R. Martin ×Clear All Filters
Search Results
Irrigation Quantity and Frequency Influence Canopy Development and Yield Stability in Potato under High-Temperature ConditionsNARA Subscribed
Potato ( Solanum tuberosum L.) production is expanding in subtropical environments where heat and irregular rainfall constrain yield. This study investigated how seasonal water input patterns and dry spells affect potato growth, yield, and quality when high temperatures occur early and late in the season. We conducted a three-year field experiment in Gujarat (India) in which we compared two irrigation quantities (full, maintai...
Saliva plays a crucial role in oral defense across mammals by combining host-derived antimicrobial factors with antagonistic indigenous microbiota. Understanding the composition of the oral lactic microbiota in wild canids may provide valuable insights into microbial ecology and animal health. In this study, Lactobacillus and Enterococcus spp. isolated from the saliva of South American bush dogs ( Speothos venaticus ) and mane...
Aim We evaluated how native vegetation cover influences the diversity of arachnid assemblages across multiple spatial scales in major Brazilian ecosystems. Location Brazil (Amazon and Atlantic rainforests, Cerrado savanna and Caatinga dry forest). Taxon Arachnida (Opiliones, Pseudoscorpiones and Scorpiones). Methods We sampled arachnids at 120 sites using active search and litter sifting. Native vegetation cover was quantified...
Small pelagic fish (SPF) are critical to the trophodynamic structure and function of marine systems and support some of the most valuable and socially important fisheries worldwide. Their “boom and bust” population dynamics, shifts in distribution, and importance as forage resources for other fish stocks place unique challenges to assessing and managing SPF. In response to these challenges, an international working group was f...
Rapid identification directly from urine using QUICKprep kitNARA Subscribed
Role of autonomic receptors in ethyl ferulate-induced cardiovascular effects in normotensive and hypertensive female ratsNARA Subscribed
Aims Ethyl ferulate (EF) may offer novel benefits in hypertension. We investigated the contribution of autonomic receptors to EF-induced effects in female Wistar and SHR. Methods Anesthetized females received EF intravenously at 7.5, 15, or 30 mg/kg. Autonomic involvement was evaluated using pretreatment with atropine, atenolol, or hexamethonium. MAP and HR were continuously monitored. Results EF induced rapid and pronounced r...
Modeling Future Climate Impacts on Brazil’s Operational Wind and Solar Energy CapacityNARA Subscribed
Over the past decade, the Brazilian electricity sector has undergone a profound transformation, driven by the large-scale deployment of wind and solar photovoltaic power plants, a trend that is expected to continue in the years ahead. Although the transition to these variable renewable energy resources helps to reduce greenhouse gas emissions and mitigate the climate crisis, they are vulnerable to the very climate changes they...
Interpretable deep learning reveals spatiotemporal MRI features of brain aging that align with neurodegenerationNARA Subscribed
Cortical thinning and atrophy are hallmarks of brain aging that have been characterized using magnetic resonance imaging (MRI). Brain aging involves many neuroanatomic features whose effects on brain structure remain unexplored. To address this challenge, we trained interpretable deep neural networks (DNNs) to estimate brain age (BA) from T 1 -weighted ( T 1 w) MRI. By identifying MRI features unapparent to humans, DNNs can fi...
Low temperatures impact on the expression of growth genes and miRNAs in Nile tilapia (Oreochromis niloticus)NARA Subscribed
Nile tilapia ( Oreochromis niloticus ) is one of the most important aquaculture species worldwide, but its sensitivity to low temperatures limits production, particularly in subtropical and temperate regions. Since somatic growth in fish is largely regulated by the growth hormone/insulin-like growth factor (GH/IGF) axis, and microRNAs contribute to the post-transcriptional regulation of growth, metabolism, and stress responses...
Integrated Reanalysis of Global Riverine Fish eDNA Datasets Shows Robustness and Congruence of Biodiversity ConclusionsNARA Subscribed
The analysis of environmental DNA (eDNA) has revolutionized biodiversity assessments in aquatic ecosystems, enabling non‐invasive monitoring of fish communities across diverse regions. However, the global comparability of these eDNA datasets remains ambiguous due to heterogeneous sampling protocols and bioinformatic workflows across studies, making it difficult to assess how robust and comparable the biodiversity patterns infe...