Objectives: to know the difficulties experienced and actions undertaken by hospital nursing workers in process of functional readaptation illness. Method: this is a qualitative, descriptive exploratory study, conducted teaching Rio Grande do Sul, Brazil, with 16 workers, through semi-structured individual interviews. Data were collected from September November 2018, analyzed according thematic ...

Background The purpose of this study was to measure the level of quality of work life (QWL) among hospital employees in Iran. Additionally, it aimed to identify the factors that are critical to employees’ QWL. It also aimed to test a theoretical model of the relationship between employees’ QWL and their intention to leave the organisation. Methods A survey study was conducted based on a sample ...

The design of drugs with bioinformatics methods to identify proteins and peptides with a specific toxic action is increasingly recurrent. Here, we identify toxic proteins towards the influenza A virus subtype H1N1 located at the UniProt database. Our quantitative structure-activity relationship (QSAR) approach is based on the analysis of the linear peptide sequence with the so-called Polarity I...

It is obvious that lead intake is of concern not for its beneficial/essential effects on metabolism, but rather for its toxic actions, which can be especially damaging to children. The objective of this study was to analyze the concentration of lead in milk of mothers during prolonged lactation. Milk samples from 43 mothers were collected at 2 months postpartum. Lead was analyzed using atomic a...

Predicate-action diagrams, which are similar to standard state-transition diagrams, are precisely defined as formulas of TLA (the Temporal Logic of Actions). We explain how these diagrams can be used to describe aspects of a specification—and those descriptions then proved correct— even when the complete specification cannot be written as a diagram. We also use the diagrams to illustrate proofs...

Robust statistical methods are important to the evaluation of toxicological interactions (i.e., departures from additivity) among chemicals in a mixture. However, different concepts of joint toxic action as applied to the statistical analysis of chemical mixture toxicology data or as used in environmental risk assessment often appear to conflict with one another. A unifying approach for applica...

This interaction profile discusses and evaluates the evidence for joint toxic action among lead, manganese, zinc, and copper. The interaction profile recommends how to incorporate concerns about possible interactions or additivity into public health assessments of hazardous waste sites where people might be exposed to mixtures of these chemicals. The profile recommends using endpoint-specific h...

This article reviews the mechanistic basis of the tissue residue approach for toxicity assessment (TRA). The tissue residue approach implies that whole-body or organ concentrations (residues) are a better dose metric for describing toxicity to aquatic organisms than is the aqueous concentration typically used in the external medium. Although the benefit of internal concentrations as dose metric...