Identification of Listeria monocytogenes Genes Contributing to Oxidative Stress Resistance under Conditions Relevant to Host Infection.

The Gram-positive bacterium survives in environments ranging from the soil to the cytosol of infected host cells. Key to intracellular survival is the activation of PrfA, a transcriptional regulator that is required for the expression of multiple bacterial virulence factors. Mutations that constitutively activate ( mutations) result in high-level expression of multiple bacterial virulence factors as well as the physiological adaptation of for optimal replication within host cells.

Chewing over the future: khat consumption, anxiety, depression, and time among young men in Jimma, Ethiopia.

This article draws on qualitative and quantitative research to examine the relationship between the consumption of khat, symptoms of depression and anxiety and the experience of time among young men in urban Ethiopia. Young men claim that khat, a mild stimulant, both causes and alleviates symptoms of depression and anxiety. However, our quantitative data indicate that there is not a direct relationship between khat and symptoms of depression and anxiety.

Brief interventions for heavy alcohol users admitted to general hospital wards.

Background: Brief interventions involve a time-limited intervention focusing on changing behaviour. They are often motivational in nature using counselling skills to encourage a reduction in alcohol consumption.

Objectives: To determine whether brief interventions reduce alcohol consumption and improve outcomes for heavy alcohol users admitted to general hospital inpatient units.

What is patient safety culture? A review of the literature.

Purpose: To organize the properties of safety culture addressed by many studies and to develop a conceptual culture of safety model.

Design And Methods: A comprehensive review of the culture of safety literature within the U.S.