Extensivist: improving the delivery of enhanced health in older people's care homes.

Background: Older people living in care homes are often frail and clinically complex. The Enhanced Health in Care Homes (EHCH) framework supports organisational and clinical strategies to deliver good care, promoting proactive person-centred care by whole system collaboration. We evaluate the impact of a new role, the Extensivist, in the delivery of EHCH for older people living in care homes.

Extraction of absorption coefficients from as-grown GaN nanowires on opaque substrates using all-optical method.

We demonstrate a new all-optical method to measure absorption coefficients in any family of as-grown nanowires, provided they are grown on a substrate having considerable difference in permittivity with the nanowire-air matrix. In the case of high crystal quality, strain-free GaN nanowires, grown on Si (111) substrates, the extracted absorption coefficients do not exhibit any enhancement compared to bulk GaN values, unlike relevant claims in the literature. This could be attributed to the relatively small diameters, short heights, and high densities of our nanowire arrays.