Analysis of Black Phosphorus Terahertz Photoconductive Antenna Santos, Jose; Doha, M. Hasan; Churchill, Hugh ...
2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting,
2020-July-5
Conference Proceeding
This paper presents a parametric analysis of a photoconductive antenna that implements the 2-D material black phosphorus (BP). This material fills the gap between the electrodes of the antenna. The ...study involves modeling and simulation of the device using COMSOL Multiphysics at different bias voltages. We present the calculations of the photocurrent density versus time at the center of the gap in the BP layer, and the maximum photocurrent density value measured over time for multiple bias voltages. The results showed a saturation behavior versus bias voltage.
ABSTRACT Studies have shown that Japanese migrants to the US and Brazil have higher rate of diabetes than native Japanese, but little is known about migrants to the UK. We investigate the health ...status of Japanese migrants to the UK. We utilised the modified validated Behavioral Risk Factor Surveillance System State Questionnaire 2004. A UK computerised directory was searched for common Japanese names and 2192 anonymised postal questionnaires were dispatched. Data were compared to a nationwide survey of diabetes in Japan, the National Health and Nutrition Survey and the Health Survey for England. 589 replies were received and showed that the rates of obesity and overweight were lower than that of the native UK population. The prevalence of self-reported doctor-diagnosed diabetes, hypertension, hyperlipidaemia, heart-attack and stroke were 3.6%, 13.1%, 19.5%, 0.7% and 0.8% respectively. It appears that Japanese migrants adopt a lifestyle similar to the UK population, diverging from that of native Japanese. Rates of obesity are lower than the UK native population and smoking rates are lower than native Japanese. In conclusion, the migratory disease burden seen in Japanese migrants to the US and Brazil was not apparent in this sample population in the UK.
Objectives: Patients who frequently call ambulance services are a vulnerable yet heterogeneous population with unmet multiple and complex physical health, mental health and/or social care needs. In ...this article, we report the challenges that the COVID-19 pandemic has introduced
for ambulance services across the UK when managing frequent callers, and reflect on how existing systems and practices are adapting to support changing patient needs.Methods: Data reported in this article comprise reflections from the frequent caller leads in each ambulance service
in the UK. All data were provided between 23 April 2020 and 1 May 2020, shortly after the peak of the outbreak in the UK. A single anonymised case study is also reported to illustrate how the pandemic is affecting people's circumstances and contributing to frequent caller behaviour.Results:
Ambulance services are observing changes to the frequent caller population, with many new frequent callers due to health anxiety caused or exacerbated by the pandemic. Management of frequent callers is also changing, with multidisciplinary and multi-agency working becoming more challenging
due to decreased access to external services, whether in social care or the community and voluntary sector, and the redeployment of ambulance service staff. There is also decreased face-to-face contact with frequent callers, meaning that opportunities to deliver person-centred care are reduced.
However, the introduction or increased use of tele/video conferencing with other organisations has mitigated some of these challenges, and in some cases has improved engagement among external organisations.Conclusions: Health anxieties, lack of access to other health, social and
community and voluntary sector services and exacerbations of social isolation and/or loneliness have reportedly contributed to changing behaviour among frequent callers. The COVID-19 pandemic has also affected how ambulance services have been able to manage frequent callers. Ambulance services
should continue to engage with external organisations to aid the delivery of person-centred care, particularly organisations with experience in multiple complex needs such as mental health, social isolation and/or loneliness. Future research should examine the consequences of the pandemic
for frequent users of ambulance services, and how these impact on the wider health and care community.
OBJECTIVESPatients who frequently call ambulance services are a vulnerable yet heterogeneous population with unmet multiple and complex physical health, mental health and/or social care needs. In ...this article, we report the challenges that the COVID-19 pandemic has introduced for ambulance services across the UK when managing frequent callers, and reflect on how existing systems and practices are adapting to support changing patient needs. METHODSData reported in this article comprise reflections from the frequent caller leads in each ambulance service in the UK. All data were provided between 23 April 2020 and 1 May 2020, shortly after the peak of the outbreak in the UK. A single anonymised case study is also reported to illustrate how the pandemic is affecting people's circumstances and contributing to frequent caller behaviour. RESULTSAmbulance services are observing changes to the frequent caller population, with many new frequent callers due to health anxiety caused or exacerbated by the pandemic. Management of frequent callers is also changing, with multidisciplinary and multi-agency working becoming more challenging due to decreased access to external services, whether in social care or the community and voluntary sector, and the redeployment of ambulance service staff. There is also decreased face-to-face contact with frequent callers, meaning that opportunities to deliver person-centred care are reduced. However, the introduction or increased use of tele/video conferencing with other organisations has mitigated some of these challenges, and in some cases has improved engagement among external organisations. CONCLUSIONSHealth anxieties, lack of access to other health, social and community and voluntary sector services and exacerbations of social isolation and/or loneliness have reportedly contributed to changing behaviour among frequent callers. The COVID-19 pandemic has also affected how ambulance services have been able to manage frequent callers. Ambulance services should continue to engage with external organisations to aid the delivery of person-centred care, particularly organisations with experience in multiple complex needs such as mental health, social isolation and/or loneliness. Future research should examine the consequences of the pandemic for frequent users of ambulance services, and how these impact on the wider health and care community.
Evaluation and follow-up are an integral part of business today. For the creative management consultant, it presents the challenge of incorporating as many feedback mechanisms as possible into the ...consultation process itself. The management consultation then becomes a continuously evolving, self-correcting service designed to better meet the needs of the consumer.
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