A mathematical model was used to study numerically, the metastatic papillary thyroid cancer (PTC) response to protocols of treatment with radioiodine I-131 (RAI), considering different values for the RAI efficiency ratio. ...

This work presents a mathematical model that assumes the existence of an animal population that, from an epidemiological point of view, is being affected by an infectious disease of the SIR type and, from an ecological ...

Biological community structure can be used as an ecological state descriptor, and the sensitivity of some taxonomic groups or biological entities to environmental conditions allows for their use as ecological state indicators. ...

Alcohol consumption is a problem of both social and health interest since consumption at an early age increases the probability of developing alcohol dependence, along with a series of risks associated with diseases, ...

Living systems are instances of far-from-equilibrium dissipative structures. Several theories about their origin have been proposed, but they are hard to test empirically. One promising strategy is to search the minimal ...

In the analysis of anthropogenic impact on the environment arises the question of whether the shapes of preserved habitat fragments play an important role in the conservation of wild species. In this work we use a very ...

Two generalist predators not interfering with each other and hunting the same single prey that gathers in a herd are here considered. The system allows only two possible final outcomes, the prey-free state in which both ...

Noise is a form of pollution resulting from the undeniable increase in industrialization worldwide. Anthropogenic noise can have negative effects on the survival of a species, as it can mask acoustic signals relevant to ...

In this work we present a general framework for the modeling of the transmission dynamics of macroparasites which do not reproduce within the host like Ascaris lumbricoides, Trichuris trichiura, Necator americanus y ...

The study of metapopulations has played a fundamental role in our understanding Spatial Ecology, Metacommunities and Biogeography, among other areas. Richard Levins, defined the metapopulation as a system of local populations ...