IOT Based secured Low-cost Visitor Tracker using smart Application

Since the end of 2019, the world has been reeling with the COVID-19 pandemic. The drastic and dramatic spread has affected human lives and livelihoods as well as businesses across the world. Organizations across the world are uniting and coming forward to minimize the seriousness of healthcare. The survival of the human community should be the top priority during this time. To control spread, respective higher authorities impose restrictions on public gatherings, with strict action taken against those who exceed the maximum allowed people in public gatherings. Our IOT-based project aims to limit the number of people entering the academic blocks during COVID-19 in order to monitor overcrowding in these buildings. Our electrical circuit or device will monitor the number of people entering the academic blocks, and once the maximum allowed number of people is reached, the next person will not be allowed to enter the building, and the electrical circuit will ring a siren. This will also ensure that social distancing is maintained. Our project is based on Arduino. Several electrical components, such as an Arduino Uno, a prototype, a breadboard, a piezo-buzzer, ultraviolet sensors, and jumper wires, were used. Software simulations were carried out in the well-known online electrical circuit compiler, Tinkercad. A hardware simulation of our project was also made. © Este es un artículo en acceso abierto,.

Challenges for Liver Transplantation During Recovery From the COVID-19 Pandemic: Insights and Recommendations.

The coronavirus disease 2019 (COVID-19) pandemic is placing an increasing burden on liver transplant (LT) services worldwide. At the peak of the pandemic, many LT services worldwide reduced or halted their activities. With the gradual easing of lockdowns, LT teams face new challenges when restarting activities. The numbers of LTs are likely to drop in the immediate post-COVID era. Prolonged and intermittent lockdowns are likely to lead to a shortage of supplies, especially in poor resource settings. Special attention is needed to avoid nosocomial COVID-19 infection among cirrhotic patients awaiting transplant, post-transplant patients, and members of transplant teams. LT programs may have to revise existing strategies in selecting donors and recipients for transplants. Redesigning service provision, restructuring outpatient care, carefully screening and selecting donors and recipients, and performing LT with limited resources will have to be initiated in the post-COVID era if long-term recovery of LT services is to be expected. Costs involved with LT are likely to increase, considering the change in protocols of testing, quarantining, and interstate traveling. This paper discusses the different elements affecting and the widespread impact of the COVID-19 pandemic on LT and strategies to minimize the impact of these factors and to adapt so LT services can meet the health care needs during this pandemic and beyond.