RESUMO
Surgical area nurses provide comprehensive care to patients throughout the surgical process. Increases in life expectancy lead to the appearance and development of diseases, translating into an increase in the number of necessary interventions. Increases in the workload can be another risk factor for the development of burnout in professionals in this area. Knowledge of psychological and personality-related variables provides relevant information of level changes in the dimensions of burnout syndrome. Three logistic regression models, based on a cross-sectional study with 214 nurses working in the surgical area in the Andalusian Health Service, Spain, were built for each dimension. These models included different variables related to depression and personality, with some being significant at the population level and consequently true risk or protection factors. Friendliness, responsibility and extraversion are protection factors for the personal accomplishment dimension, whilst neuroticism is a risk factor for this dimension. Friendliness is also a protection factor for depersonalization, whilst depression is a risk factor. Finally, neuroticism, responsibility and depression are risk factors for the emotional exhaustion dimension of burnout. These findings provide relevant information that makes anticipation of this syndrome in this group easier.
RESUMO
The aim of this study was to estimate genetic parameters for growth traits in Mexican Nellore cattle. A univariate animal model was used to estimate (co)variance components and genetic parameters. The traits evaluated were birth weight (BW), weaning weight (WW), and yearling weight (YW). Models used included the fixed effects of contemporary groups (herd, sex, year, and season of birth) and age of dam (linear and quadratic) as a covariate. They also included the animal, dam, and residual as random effects. Phenotypic means (SD) for BW, WW, and YW were 31.4 (1.6), 175 (32), and 333 (70) kg, respectively. Direct heritability, maternal heritability, and the genetic correlation between additive direct and maternal effects were 0.59, 0.17, and -0.90 for BW; 0.29, 0.17, and -0.90 for WW; and 0.24, 0.15, and -0.86 for YW, respectively. The results showed moderate direct and maternal heritabilities for the studied traits. The genetic correlations between direct and maternal effects were negative and high for all the traits indicating important tradeoffs between direct and maternal effects. There are significant possibilities for genetic progress for the growth traits studied if they are included in a breeding program considering these associations.
