Barriers and motivators to undertaking physical activity in adults over 70-a systematic review of the quantitative literature.

Background: Physical activity (PA) has multiple benefits for older adults (≥70 years old). Despite this many older adults do not undertake the World Health Organisation guideline recommended amount of PA. This systematic review examines barriers and motivators to PA in adults aged ≥70 years.

Factors that influence older adults' participation in physical activity: a systematic review of qualitative studies.

Background: Despite the advantages of physical activity (PA), older adults are often insufficiently active to maximise health. Understanding factors that influence PA engagement will support well-designed interventions for older people. Our aim was to review the qualitative evidence exploring the factors affecting older adults' engagement in PA.

Improving children's nurses' knowledge of caring for people with mental health problems.

[Figure: see text] The aim of this project was to provide training to nursing staff to improve their confidence and knowledge when caring for children and young people with mental health problems. A one-day bespoke training course was given to a purposeful sample of eight children's nurses. The nurses completed questionnaires before and after the training day and a third questionnaire three months after the course.

Enduring legacy of a toxic fan via episodic redistribution of California gold mining debris.

The interrelationships between hydrologically driven evolution of legacy landscapes downstream of major mining districts and the contamination of lowland ecosystems are poorly understood over centennial time scales. Here, we demonstrate within piedmont valleys of California's Sierra Nevada, through new and historical data supported by modeling, that anthropogenic fans produced by 19th century gold mining comprise an episodically persistent source of sediment-adsorbed Hg to lowlands. Within the enormous, iconic Yuba Fan, we highlight (i) an apparent shift in the relative processes of fan evolution from gradual vertical channel entrenchment to punctuated lateral erosion of fan terraces, thus enabling entrainment of large volumes of Hg-laden sediment during individual floods, and (ii) systematic intrafan redistribution and downstream progradation of fan sediment into the Central Valley, triggered by terrace erosion during increasingly long, 10-y flood events.

A manager's workout.

A Management Masterclass course run by the company Mind Gym is helping nurse Jessica Higson to learn new strategies for leading her ward team and to understand financial realities. The big message from the course, she says, is that thinking optimistically gets results.