Implementing telepsychiatry in an early psychosis service during COVID-19: Experiences of young people and clinicians and changes in service utilization.

AIM: In response to the COVID-19 pandemic, our early psychosis program rapidly transitioned to telepsychiatry. This study examined the change in health service utilization and experiences of young people and clinicians in response to the implementation of telepsychiatry. METHODS: Mixed methodology and triangulation of evidence drawn from health service databases and survey data. Using a retrospective observational design, health service data from pre- (Time 1) and post-(Time 2) telepsychiatry periods were compared. Surveys were also conducted with representation from clinicians and young people. RESULTS: The number of appointments increased between Time 1 and 2, although this was accompanied by a near-doubling in missed appointments (8% to 13%). Young people had mixed views about telepsychiatry. While convenience was a frequently cited benefit, clients reported technological issues, isolation and lack of human connection. A preference for face-to-face appointments was linked to younger age and anxiety when using telepsychiatry. Clinicians reported improved workplace satisfaction and efficiency but noted some limitations in the use of telepsychiatry including difficulty interviewing and managing unwell clients remotely and called for greater skill development. CONCLUSIONS: The introduction of telepsychiatry in response to COVID-19 was associated with an increase in service activity; however, there was an increase missed appointments by young people. Although clinicians and clients reported positive experiences, telepsychiatry was not completely endorsed as a replacement for face-to-face interactions.

Synthesis and characterization of Cr2AlC MAX phase for photocatalytic applications.

MAX phase, a layered ternary carbide/nitride, displays both ceramic and metallic properties, which has significantly attracted the materials research. In this work, Cr2AlC MAX phase powder with high purity was fabricated via a facile and cost-effective pressure-less sintering methodology and utilized for photocatalytic degradation of different organic pollutants for the first time. Various characterization techniques were used for confirming the morphological and other physico-chemical properties of the catalyst. Cr2AlC MAX phase with a low band gap of 1.28 eV has shown 99% efficiency in the degradation of malachite green, an organic pollutant under visible light irradiation. The scavenger studies conclude that, O2•-and h+ as the active species during the photocatalytic reaction. Furthermore, the kinetic study revealed that the reaction obeys pseudo-first-order kinetics and can be reused for four cycles without losing the activity. This novel approach can give new insight into the potential application of MAX phase materials in the field of wastewater treatment under visible light irradiation.

Tribological Behavior of NiMoAl-Based Self-Lubricating Composites.

The present study focused on the development of NiMoAl-based self-lubricating composites using solid lubricants as the second phase by powder metallurgy. For this, Cr2AlC MAX phase, Cr2AlC-Ag, and MoS2 powders were mixed with the NiMoAl-based matrix and subsequently hot pressed to produce bulk composite samples. The average hardness and wear resistance of the matrix were found to be increased with the addition of MoS2, Cr2AlC MAX phase, and Cr2AlC-Ag powder to the NiMoAl matrix. The addition of Cr2AlC to NiMoAl was more effective in improving the wear resistance than MoS2. The addition of Cr2AlC and Cr2AlC-Ag has increased the hardness by about 75% than that with the addition of NiMoAl alloy. A scanning Kelvin probe system was used to study the surface properties of the tribofilm in detail through work function mapping from the edge area to the wear area (groove). Among all the samples, the one with the addition of Cr2AlC-Ag powder to the NiMoAl matrix possesses the best tribo-mechanical properties. Cr2AlC-Ag composite addition to NiMoAl was found to decrease the wear rate by one-third and to reduce the coefficient of friction by one-fourth, compared to the base NiMoAl alloy. This was attributed to the high-sintered density and formation of strong tribofilms consisting of mixed oxides such as Ag2MoO4 and Al2O3, as confirmed by micro Raman spectra.