Publications by authors named "J Griffiths"
Field effect transistors have shown promising performance as terahertz (THz) detectors over the past few decades. Recently, a quantum phenomenon, the in-plane photoelectric effect, was discovered as a novel detection mechanism in gated two-dimensional electron gases (2DEGs), and devices based on this effect, photoelectric tunable-step (PETS) THz detectors, have been proposed as sensitive THz detectors. Here, we demonstrate a PETS THz detector based on GaAs/AlGaAs heterojunction using a dipole antenna.
View Article and Find Full Text PDFBackground: The use of surveillance technologies is becoming increasingly common in inpatient mental health settings, commonly justified as efforts to improve safety and cost-effectiveness. However, their use has been questioned in light of limited research conducted and the sensitivities, ethical concerns and potential harms of surveillance. This systematic review aims to (1) map how surveillance technologies have been employed in inpatient mental health settings, (2) explore how they are experienced by patients, staff and carers and (3) examine evidence regarding their impact.
View Article and Find Full Text PDFEvolutionary responses to climate change may incur trade-offs due to energetic constraints and mechanistic limitations, which are both influenced by environmental context. Adaptation to one stressor may result in life history trade-offs, canalization of phenotypic plasticity, and the inability to tolerate other stressors, among other potential costs. While trade-offs incurred during adaptation are difficult to detect in natural populations, experimental evolution can provide important insights by measuring correlated responses to selection as populations adapt to changing environments.
View Article and Find Full Text PDFArticle Synopsis
- Occupational violence (OV) is a major issue affecting 62% of healthcare workers worldwide, prompting the introduction of a new role called "Ambassador," designed to prevent OV in healthcare by engaging with patients to de-escalate potential concerns.
- A pilot study in an Australian hospital over three months showed that the introduction of Ambassadors led to a 60% reduction in security calls and a 70% decrease in incident reports, while staff awareness of OV increased significantly.
- Overall, the program enhanced staff perceptions of safety, highlighting the importance of candidate selection, clear role definitions, training, and support resources for the success of the Ambassador initiative, with recommendations for further research in various healthcare settings.*