Binary orbits as the driver of γ-ray emission and mass ejection in classical novae.

Classical novae are the most common astrophysical thermonuclear explosions, occurring on the surfaces of white dwarf stars accreting gas from companions in binary star systems. Novae typically expel about 10(-4) solar masses of material at velocities exceeding 1,000 kilometres per second. However, the mechanism of mass ejection in novae is poorly understood, and could be dominated by the impulsive flash of thermonuclear energy, prolonged optically thick winds or binary interaction with the nova envelope.

Does diet-induced weight change effect anxiety in overweight and obese adults?

Anxiety is the most prevalent type of mental disorder and a significant health concern. Cross-sectional studies have detected a positive association between obesity and anxiety. What is less clear is whether weight loss can reduce anxiety.

Working with a brain injury: personal experiences of returning to work following a mild or moderate brain injury.

Objective: Most brain injuries occur in people of working age. Individuals with mild or moderate injuries may have unrecognized problems affecting return to work. Previous studies have focused on factors that predict return to work after brain injury.

Keeping nurses working: development and psychometric testing of the Nurse-Work Instability Scale (Nurse-WIS).

Aim: This paper reports a study to develop and test the psychometric properties of the Nurse-Work Instability Scale (Nurse-WIS).

Background: Work Instability describes the extent of any mismatch among functional (in)capacity, work demands and its potential impact on efficiency/productivity at work. Recruitment, retention and migration of nurses are global issues influenced by many factors.