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This work presents the distribution and the partition of mercury (Hg) in the Curuai floodplain lakes along the Amazon River. The maximum Total Filtered Hg (T-FHg) concentrations in the floodplain lakes (28 to 52 pmol L(-1)) coincide with the maximum T-FHg concentrations of the Amazon River and are measured during the flooding period. The lowest T-FHg values(More)
The objective of this study was to identify prognostic factors of death in patients with tuberculous meningitis (TM) and show the impact of infection by multidrug-resistant strains on the outcome of this disease. We retrospectively analysed clinical charts of HIV-infected patients with culture-confirmed TM attending our institution during 1996-2004. The(More)
The development of complex dynamic systems require studies and analysis prior to deployment with the goal of detecting unwanted behavior. UML is a language widely used for modeling these systems through state machines, among other mechanisms. Currently, these models do not have appropriate execution and simulation tools to analyze the real behavior of(More)
The development of complex event-driven systems requires studies and analysis prior to deployment with the goal of detecting unwanted behavior. UML is a language widely used by the software engineering community for modeling these systems through state machines, among other mechanisms. Currently, these models do not have appropriate execution and simulation(More)
When you want to show if there is a statistical association or differences between categorical variables, it is recommended to use the χ(2) test. This nonparametric test is one of the most used in clinical research; it contrasts nominal or ordinal qualitative variables that are observed in clinical practice. This test calculates the p value that determines(More)
INTRODUCTION There is evidence that children born moderate-to-late preterm (MLP) have a higher risk of hospitalisation, neonatal morbidity, and developmental delay (DD). OBJECTIVE To determine the association between DD, gestational age, and neonatal morbidity in MLP children. PATIENTS AND METHOD A case control study design nested in a cohort of MLP(More)
Parvovirus B19 infection is associated with a wide variety of symptoms and signs, and given that some clinical features, such as anemia, arthropathy and rash may be attributable to other causes, laboratory diagnosis of B19 markers is necessary. The principal aims were to study the behavior of B19 infection-associated diseases in the Chilean population and(More)