A5100708182- Fish biology, ecology, and behavior
- Fish Ecology and Management Studies
- Animal Behavior and Reproduction
- Ichthyology and Marine Biology
- Sleep and related disorders
- Circadian rhythm and melatonin
- Sleep and Wakefulness Research
- Neurobiology and Insect Physiology Research
- Marine animal studies overview
- Neuroendocrine regulation and behavior
- Fish Biology and Ecology Studies
- Finite Group Theory Research
- Geometric and Algebraic Topology
- Physiological and biochemical adaptations
- Reproductive biology and impacts on aquatic species
- Photoreceptor and optogenetics research
- Water Quality Monitoring Technologies
- Neural dynamics and brain function
- Heart Rate Variability and Autonomic Control
- Zebrafish Biomedical Research Applications
- Psychological and Temporal Perspectives Research
- Dietary Effects on Health
- Education Pedagogy and Practices
- Pesticide Exposure and Toxicity
- Advanced Algebra and Geometry
Universidad de la República
2016-2025
Comisión Sectorial de Investigación Científica
2022-2025
Merrimack College
2013-2024
Universidade Federal do Piauí
2024
Oregon Health & Science University
2024
Neurological Surgery
2024
Instituto de Investigaciones Biológicas Clemente Estable
2013-2023
Universidad La República
2012-2023
Centro Uruguayo de Imagenología Molecular
2008-2023
University of Lisbon
2021-2023
Dominant-subordinate status emerges from agonistic encounters. The weakly electric fish, Gymnotus omarorum, displays a clear-cut example of non-breeding territorial aggression. asymmetry in the behavior dominants and subordinates is outstanding. Dominants are highly aggressive signal submission precise sequence locomotor traits: retreating, decreasing their organ discharge rate, emitting transient signals. hypothalamic neuropeptide arginine-vasotocin (AVT) its mammalian homologue...
Abstract The aim of the present study was to evaluate behavioral patterns associated with autism and prevalence these behaviors in males females, verify whether our model lipopolysaccharide (LPS) administration represents an experimental autism. For this, we prenatally exposed Wistar rats LPS (100 μg/kg, intraperitoneally, on gestational day 9.5), which mimics infection by gram‐negative bacteria. Furthermore, because exact mechanisms develops are still unknown, investigated neurological that...
Chronic wounds afford a hostile environment of damaged tissues that allow bacterial proliferation and further wound colonization.
Chronic skin wounds represent a major burn both economically and socially. Pseudomonas aeruginosa Escherichia coli are among the most common colonizers of infected prolific biofilm formers. Biofilms problem in infections due to their increasingly difficult control eradication, tolerance multiple prescribed drugs. As so, alternative methods necessary. Bacteriophages (phages) honey seen as promising approach for related infections. Phages have specificity toward bacterial genus, species or...
Abstract Differences in social status are often mediated by agonistic encounters between competitors. Robust literature has examined status-dependent brain gene expression profiles across vertebrates, yet and reproductive state confounded. It therefore been challenging to identify the neuromolecular mechanisms underlying independent of state. Weakly electric fish, Gymnotus omarorum , display territorial aggression dominance We use wild-derived G. males conduct a transcriptomic analysis...
Abstract Males and females commonly compete for limited resources. When interaction costs are similar both sexes there no sexual differences in resource value estimation, a non‐sex‐biased dominance is expected. Moreover, only assessment of contenders fighting ability (Resource Holding Potential, RHP) should influence contest decisions. To test these predictions, we evaluated non‐breeding agonistic intra‐ intersexual dyadic interactions the weakly electric fish, Gymnotus omarorum . During...
Agonistic behavior has shaped sociality across evolution. Though extremely diverse in types of displays and timing, agonistic encounters always follow the same conserved phases (evaluation, contest post-resolution) depend on homologous neural circuits modulated by neuroendocrine mediators vertebrates. Among neuromodulators, serotonin (5-HT) is main inhibitor aggression, arginine vasotocin (AVT) underlies sexual, individual social context differences vertebrate taxa. We aim to demonstrate...
In humans, a person's chronotype depends on environmental cues and individual characteristics, with late chronotypes prevailing in youth. Social jetlag (SJL), the misalignment between an individual׳s biological clock social time, is higher chronotypes. Strong SJL expected Uruguayan university students morning class schedules very entertainment activities. Sleep disorders have been reported Antarctic inhabitants, that might be response to extreme environment or strictness of life. We...
During adolescence, biological, psychosocial, and contextual factors converge in a “perfect storm” have been put forward to explain the delay chronotype observed at this age prevalence of disrupted sleep. This study provides evidence support that sleep patterns (particularly duration) are socially constrained identify novel significant social predictors. Uruguayan public school activities arranged up 4 shifts, creating natural experiment examine effect timing on questionnaire-based...
A dinâmica da comunidade arbórea e de 26 populações componentes foi investigada em um fragmento floresta estacional semidecídua Piedade do Rio Grande, Minas Gerais, com base inventários conduzidos 1999 2004 30 parcelas 400 m², 12 das quais foram locadas na borda 18 seu interior. O objetivo verificar se a arbóreas (a) estavam estáveis no período, (b) mostraram uma mais acelerada que Foram obtidas taxas mortalidade recrutamento árvores ganho perda área basal para amostra total, seus dois...
Morningness–Eveningness (M–E) has been associated with school performance when activities are arranged early in the morning. This study aims to evaluate this association 224 adolescents of a secondary Montevideo, Uruguay, attending either morning or afternoon shifts. Students' socio-demographic characteristics and indicators were similar across shifts, while afternoon-shift students exhibited later circadian preferences. After controlling for other educational variables, eveningness was...
In Health Examination Surveys interview information is complemented with objective information, providing more accurate indicators than self-reported data. We report the study design, planning and implementation of first Portuguese Survey (INSEF).INSEF was a cross-sectional population-based representative at regional national level. Individuals aged between 25 74 years old, residing in Portugal were selected from health users' registry through multi-stage stratified probabilistic sampling....
Dim light melatonin onset (DLMO) is the most reliable measure of human central circadian timing. Its modulation by exposure and chronotype has been scarcely approached. We evaluated impact changes on interaction between melatonin, sleep, in university students (n = 12) Antarctic summer (10 days) autumn equinox Montevideo, Uruguay days). Circadian preferences were tested validated questionnaires. A Morningness-Eveningness Questionnaire average value (47 ± 8.01) was used to separate late early...
Time-of-day and individual circadian variability influence cognitive performance, with later chronotypes being most compromised earlier in the day. On other hand, moderate-intensity exercise has been shown to enhance function. We sought evaluate interplay between rhythms, exercise, performance 22 students from Uruguayan National Dance School, a population previously characterized as late chronotypes, attending demanding morning schedule. assessed sleep habits physical activity patterns using...
Tracking individual spatial and activity-rest patterns in natural populations is challenging because it seldom possible to monitor individual-specific traits continuously. The continuous emission of electric signals (EODs) by weakly fish provides a unique opportunity do this. We present cutting-edge technique, arrays electrodes connected low-cost amplifiers tracking algorithm, provide the identification pulse-type wild. Based only on EOD recordings individuals Gymnotus omarorum, we show that...
Time-of-day and individual circadian variability influence cognitive performance, with later chronotypes being most compromised earlier in the day. On other hand, moderate-intensity exercise has been shown to enhance function. We sought evaluate interplay among rhythms, exercise, performance 22 students from Uruguayan National Dance School, a population previously characterized as late chronotypes, attending demanding morning schedule. assessed sleep habits physical activity patterns using...
The purpose of this study was to test the hypotheses that in obese children: 1) hypocaloric diet (D) improves both heart rate recovery at 1 min (Δ HRR1) cfter an exercise test, and cardiac autonomic nervous system activity (CANSA) children; 2) Diet training (DET) combined leads greater improvement Δ HRR1 after CANSA, than D alone. Moreover, we examined relationships among HRR1, cardiorespiratory fitness anthropometric variables (AV) children submitted DET. 33 (10±0.2 years; body mass index...