With the emergence of one of this century’s deadliest pandemics, coronavirus disease (COVID-19) has an enormous effect globally with a quick spread worldwide. This made the World Health Organization announce it as a pandemic. COVID-19 has pushed…
In this paper, an extended SEIR model with a vaccination compartment is proposed to simulate the novel coronavirus disease (COVID-19) spread in Saudi Arabia. The model considers seven stages of infection: susceptible (S), exposed (E), infectious (I),…
The COVID-19 pandemic presents the worst public health crisis in recent history. The response to the COVID-19 pandemic has been challenged by many factors, including scientific uncertainties, scarcity of relevant research, proliferation of…
O consumo mundial crescente de fertilizantes e a consequente preocupação com as questões ambientais estimulam o desenvolvimento de tecnologias que, simultaneamente, promovam o aumento da produtividade agrícola e minimizem os danos ao ambiente. Uma…
Coronavirus disease 2019 (COVID-19), the respiratory disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), was first identified in Wuhan, China and has since become pandemic. In response to the first cases identified in the…
The COVID-19 disease, emerged in December 2019, has spread rapidly, with new cases confirmed in multiple countries. Many efforts to contain the virus are ongoing, such as containment, individual measures of protection, the authorization of use of…
Coronavirus disease 2019 caused by a novel coronavirus was first identified in Wuhan, China and rapidly spread across the world. With the COVID-19 outbreak, a penury of PPE was seen all over the word and especially in FFP2 masks, which is due to high…
La ecología política contemporánea ha mostrado un creciente interés por la relación entre los conocimientos locales y la transmisión cultural en diferentes escenarios de crisis. El objetivo del presente artículo consiste en mostrar que los…
Abstract In this study, we investigate the impact of the light-a-lamp event that occurred in India during the COVID-19 lockdown. This event happened across the country, and millions of people participated in it. We link this event to the stock market…