ABSTRACT
Com o objetivo de utilizar a Triagem do Processamento Auditivo Central como instrumento de identificaçäo de alteraçöes auditivas näo somente centrais, mas também periféricas, realizamos o procedimento em 68 crianças em idade pré-escolar e, em seguida, realizamos uma avaliaçäo para investigar a acuidade auditiva e o processamento auditivo central das crianças que falharam na triagem. A análise dos resultados, verificamos que a triagem apresentou especificidade de 90,9 por cento na identificaçäo de alteraçöes periféricas e/ou centrais
Subject(s)
Humans , Male , Female , Child, Preschool , Hearing , Auditory Diseases, Central , Child, Preschool , Auditory PathwaysABSTRACT
The response of a genetically modified Pseudomonas flurescens to nutrient starvation and starvation-induced stress cross-protection were investigated. Strain BR12 was starved for carbon, nitrogen, phosphorus and sulphur individually and for all nutrients in defined mineral media and exposed for 6 h to chemical (ethanol 20 percentage), oxidative (H2O220µM), osmotic (NaCl3M), cold shock (0 degree) and heat shock (47 degree C) stresses at different incubationtimes. Response to starvation and stress cross-protection development were evaluated by viable bacteria counts. There was a significant increase in resistance of late phase cultures grown in rich medium to stress, except for ethanol, in all starvation situations. Multiple nutrient starved cultures were more resistant to stress than individual nutrient starved ones. This strain inoculated in oligotrophic stream water microcosms also showed the starvation-induced stress protection mechanism but it presented a higher resistance to ethanol than cultures starved in mineral media. the acquisition of nonspecific resistance to stress can favour the persistance of Genetically Modified Microorganisms (GMMos) in apparently unfavourable.