Research field
Cells, genes, microbes, organisms, ecosystems, and evolution.
A new arXiv preprint proposes one continuum-mechanics framework for bounded, unbounded and proportionate tissue growth. Its central results are theoretical: the model predicts a stress threshold, long-term proportions set by material parameters and a turnover-dependent growth rate, but it does not test those predictions against biological measurements.
Scientific publication6 min read
A modeling preprint suggests that near-perfect correlations between species are not a universal sign of ecological instability; the signal depends on whether a slowly relaxing mode is visible above background fluctuations.
Scientific publication3 min read
A new arXiv preprint develops models in which reproduction and survival favor different trait values and their selection strengths vary across space or time. The analysis predicts shifted optima, asymmetric or potentially two-peaked effective fitness landscapes, and wider or displaced distributions of simulated trait outcomes.
Scientific publication6 min read
A tissue study of four fatal DENV-4 cases from Ceará’s 2012 dengue epidemic found abnormalities in the liver, lungs and kidneys, while the hearts examined were largely preserved. TNF-α and IFN-γ staining was detected in liver, lung and kidney tissue. The qualitative study cannot estimate risk, prognosis or the frequency of these findings.
Memorias do Instituto Oswaldo Cruz5 min read