output
19982026
most citedCOVID-19 identification in chest X-ray images on flat and hierarchical classification scenarios

534 citations

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22 papers · 1 filter

q-bio.PE2025

Quantifying scale-free behaviors in Rock-Paper-Scissors Models as a function of Mobility

D. Bazeia, M. Bongestab, M. J. B. Ferreira +2

We investigate the scale-free behavior of the spatial rock-paper-scissors model with May-Leonard dynamics, analyzing specific quantifiers that engender the power-law feature. The m…

q-bio.PE2025

Monitoring biodiversity on highly reactive rock-paper-scissors models

D. Bazeia, M. J. B. Ferreira, B. F. de Oliveira +1

This work investigates how biodiversity is affected in a cyclic spatial May-Leonard model with hierarchical and non-hierarchical rules. Here we propose a generalization of the trad…

q-bio.PE2022★ 4 cited

Role of predator-prey reversal in Rock-Paper-Scissors models

P. P. Avelino, B. F. de Oliveira, R. S. Trintin

In this letter we consider a single parameter generalization of the standard three species Rock-Paper-Scissors (RPS) model allowing for predator-prey reversal. This model, which sh…

q-bio.PE2022★ 7 cited

Competition among alliances of different sizes

Breno F. de Oliveira, Attila Szolnoki

To understand the biodiversity of an ecosystem cannot be understood by solely analyzing the pair relations of competing species. Instead, we should consider multi-point interaction…

q-bio.PE2021★ 11 cited

Lotka-Volterra versus May-Leonard formulations of the spatial stochastic Rock-Paper-Scissors model: the missing link

P. P. Avelino, B. F. de Oliveira, R. S. Trintin

The Rock-Paper-Scissors (RPS) model successfully reproduces some of the main features of simple cyclic predator-prey systems with interspecific competition observed in nature. Stil…

q-bio.PE2021★ 9 cited

Effects of a pestilent species on the stability of cyclically dominant species

D. Bazeia, M. Bongestab, B. F. de Oliveira +1

Cyclic dominance is frequently believed to be a mechanism that maintains diversity of competing species. But this delicate balance could also be fragile if some of the members is w…

q-bio.PE2021★ 11 cited

Environment driven oscillation in an off-lattice May--Leonard model

D. Bazeia, M. J. B. Ferreira, B. F. de Oliveira +1

Cyclic dominance of competing species is an intensively used working hypothesis to explain biodiversity in certain living systems, where the evolutionary selection principle would…

q-bio.PE2021★ 16 cited

Weak species in rock-paper-scissors models

P. P. Avelino, B. F. de Oliveira, R. S. Trintin

In this letter, we investigate the population dynamics in a May-Leonard formulation of the rock-paper-scissors game in which one or two species, which we shall refer to as "weak",…

q-bio.PE2021★ 17 cited

Influence of the neighborhood on cyclic models of biodiversity

D. Bazeia, M. Bongestab, B. F. de Oliveira

This work deals with the influence of the neighborhood in simple rock-paper-scissors models of biodiversity. We consider the case of three distinct species which evolve under the s…

q-bio.PE2021★ 8 cited

Social dilemmas in off-lattice populations

B. F. de Oliveira, A. Szolnoki

Exploring the possible consequences of spatial reciprocity on the evolution of cooperation is an intensively studied research avenue. Related works assumed a certain interaction gr…

q-bio.PE2021★ 23 cited

Population Density and Spreading of COVID-19 in England and Wales

Jack Sutton, Golnaz Shahtahmassebi, Haroldo V. Ribeiro +1

We investigated daily COVID-19 cases and deaths in the 337 lower tier local authority regions in England and Wales to better understand how the disease propagated over a 15-month p…

q-bio.PE2020★ 12 cited

Breaking unidirectional invasions jeopardizes biodiversity in spatial May-Leonard systems

D. Bazeia, B. F. de Oliveira, J. V. O. Silva +1

Non-transitive dominance and the resulting cyclic loop of three or more competing species provide a fundamental mechanism to explain biodiversity in biological and ecological syste…

q-bio.PE2020★ 7 cited

Rock-paper-scissors models with a preferred mobility direction

P. P. Avelino, B. F. de Oliveira, J. V. O. Silva

We investigate a modified spatial stochastic Lotka-Volterra formulation of the rock-paper-scissors model using off-lattice stochastic simulations. In this model one of the species…

q-bio.PE2020★ 17 cited

Performance of weak species in the simplest generalization of the rock-paper-scissors model to four species

P. P. Avelino, B. F. de Oliveira, R. S. Trintin

We investigate the problem of the predominance and survival of "weak" species in the context of the simplest generalization of the spatial stochastic rock-paper-scissors model to f…

q-bio.PE2020★ 3 cited

Model for clustering of living species

D. Bazeia, M. V. de Moraes, B. F. de Oliveira

Clusters appear in nature in a diversity of contexts, involving distances as long as the cosmological ones, and down to atoms and molecules and the very small nuclear size. They al…

q-bio.PE2019★ 51 cited

Predominance of the weakest species in Lotka-Volterra and May-Leonard implementations of the rock-paper-scissors model

P. P. Avelino, B. F. de Oliveira, R. S. Trintin

We revisit the problem of the predominance of the 'weakest' species in the context of Lotka-Volterra and May-Leonard implementations of a spatial stochastic rock-paper-scissors mod…

q-bio.PE2019★ 6 cited

Death by starvation in May-Leonard models

P. P. Avelino, B. F. de Oliveira

We consider the dynamics of spatial stochastic May-Leonard models with mutual predation interactions of equal strength between any two individuals of different species. Using two-d…

q-bio.PE2018★ 16 cited

Phase transitions in dependence of apex predator decaying ratio in a cyclic dominant system

D. Bazeia, B. F. de Oliveira, A. Szolnoki

Cyclic dominant systems, like rock-paper-scissors game, are frequently used to explain biodiversity in nature, where mobility, reproduction and intransitive competition are on stag…

q-bio.PE2017★ 29 cited

Hamming distance and mobility behavior in generalized rock-paper-scissors models

D. Bazeia, J. Menezes, B. F. de Oliveira +1

This work reports on two related investigations of stochastic simulations which are widely used to study biodiversity and other related issues. We first deal with the behavior of t…

q-bio.PE2017★ 39 cited

Spatial patterns and biodiversity in off-lattice simulations of a cyclic three-species Lotka-Volterra model

P. P. Avelino, D. Bazeia, L. Losano +2

Stochastic simulations of cyclic three-species spatial predator-prey models are usually performed in square lattices with nearest neighbor interactions starting from random initial…

q-bio.PE2017★ 48 cited

How directional mobility affects biodiversity in rock-paper-scissors models

P. P. Avelino, D. Bazeia, L. Losano +3

This work deals with a system of three distinct species that changes in time under the presence of mobility, selection, and reproduction, as in the popular rock-paper-scissors game…

q-bio.PE2011★ 50 cited

Identifying and modeling patterns of tetrapod vertebrate mortality rates in the Gulf of Mexico oil spill

F. J. Antonio, R. S. Mendes, S. M. Thomaz

The accidental oil spill in the Gulf of Mexico in 2010 has caused perceptible damage to marine and freshwater ecosystems. The large quantity of oil leaking at a constant rate and t…