We study the effect of electric charge in compact stars assuming that distribution is proportional to mass density. The pressure and density matter inside are large, gravitational field intense. This indicates a strong can also be present. relativistic hydrostatic equilibrium equation, i.e., Tolman-Oppenheimer-Volkoff modified order include charge. perform detailed numerical using polytropic equation state. conclude see any appreciable on phenomenology stars, fields have huge...

Abstract Following the 2013–14 outbreak in French Polynesia, Zika virus (ZIKV) epidemic spread widely to many countries where Aedes Aegypti as main transmitting vector is endemic. The lack of a second wave ZIKV infection most affected regions may suggest that sufficiently high level herd immunity was reached during first wave. We developed an agent-based transmission model investigate role asymptomatic on likelihood observing wave, while accounting for its relative transmissibility. found...

The Harris-Todaro model of the rural-urban migration process is revisited under an agent-based approach. workers interpreted as a social learning by imitation, formalized computational model. By simulating this model, we observe transitional dynamics with continuous growth urban fraction overall population toward equilibrium. Such equilibrium characterized stabilization expected wages differential (generalized condition), concentration and unemployment. These classic results obtained...

In this work we propose an alternative model of the spread tuberculosis (TB) and emergence drug resistance due to treatment with antibiotics. We implement simulations by agent-based computational approach where spatial structure is taken into account. The occurs according probabilities defined interactions among individuals. was validated reproducing results already known from literature in which different regimes yield resistance. patterns TB can be visualized at any time system evolution....

In this work we present an agent-based computational model to study the spreading of tuberculosis (TB) disease on age-structured populations. The proposed is a merge two previous models: for and bit-string biological aging. combination TB with population aging, reproduces coexistence health states, as seen in real addition, universal exponential behavior mortalities curves still preserved. Finally, distribution function age shows prevalence mostly elders, high efficacy treatments.

The increasing rates of multidrug resistant TB (MDR-TB) have posed the question whether control programs under enhanced directly observed treatment, short-course (DOTS-Plus) are sufficient or implemented optimally. Despite efforts on early case detection and improved treatment regimens, direct transmission MDR-TB remains a major hurdle for global control.We developed an agent-based simulation model dynamics to evaluate effect reduction measures incidence MDR-TB. We 15-day isolation period...

In this work we investigate the effects of different equations state (EOS) in explaining high density matter properties. We study not only \ensuremath{\beta} stable states, pure neutron, and symmetric matter, but also states with proton fractions. show that influence parametrization is already felt at so dense while importance hyperon to meson coupling appears densities much larger than nuclear saturation density. have checked considering a universal coupling. Neutron star properties are...

In this work we present an agent-based model for the spread of tuberculosis where individuals can be infected with either drug-susceptible or drug-resistant strains and also receive a treatment. The dynamics role each one parameters are explained. whole set is explored to check their importance in numerical simulation results. captures beneficial impact adequate treatment on prevalence tuberculosis. Nevertheless, depending range, it emergence drug resistance. Drug resistance particularly...

The spatial Prisoner's Dilemma is a prototype model to show the emergence of cooperation in very competitive environments. It considers players, at sites lattices, that can either cooperate or defect when playing with z other players. This presents rich phase diagram. Here we consider players cells one-dimensional cellular automata. Each player interacts geometry allows us vary, simple manner, number neighbors ranging from one up lattice size, including self-interaction. approach has...

The Prisoner's Dilemma (PD) is one of the most popular games Game Theory due to emergence cooperation among competitive rational players. In this paper, we present PD played in cells one-dimension cellular automata, where number possible neighbors that each cell interacts, z, can vary. This makes retrieve results obtained previously regular lattices. Exhaustive exploration parameters space presented. We show final state system governed mainly by z and there a drastic difference if it even or odd.

Tuberculosis (TB) is among the 10 top causes of deaths worldwide, and one-quarter world population hosts latent TB pathogens. Therefore, avoiding emergence drug-resistant strains has become a central issue in control. In this work, we propose nested model for transmission control, wherein both within-host between-host dynamics are modeled. We use to compare effects three types antibiotic treatment protocols combinations thereof an silico population. For fixed value antibiotics clearance rate...

The rural-urban migration phenomenon is analyzed by using an agent-based computational model. Agents are placed on lattices which dimensions varying from d =2 up to =7. localization of the agents in lattice defines that their social neighborhood (rural or urban) not related spatial distribution. effect dimension studied analyzing variation main parameters characterizes migratory process. dynamics displays strong effects even for around one million sites, higher (d =6, 7).

In this work, we study the transmission of new coronavirus, SARS-CoV-2, which causes COVID-19. Our main aim is to analyze disease prevalence when vaccination and social distancing strategies are used. Simulations implemented using an agent-based model (ABM) adapted from a Susceptible-Exposed-Infectious-Recovered (SEIR) type compartmental model. Several scenarios simulated most common vaccines available in Brazil. On each scenario, different fractions population affected by measures. Results...

The spatial Prisoner's Dilemma is a prototype model to show the emergence of cooperation in very competitive environments. It considers players, at site lattices, that can either cooperate or defect when playing with other z players. This presents rich phase diagram. Here we consider players cells one-dimensional cellular automata. Each player interacts geometry allows us vary, simple manner, number neighbors ranging from one up lattice size, including self-interaction. approach has multiple...