Background: The outbreak of COVID-19 has become the current crisis in most countries.Therefore, paying attention to the consequences and determinants of COVID-19.Mortality can lead to better control redken shades eq 07m driftwood of the condition.This study aimed to investigate the COVID-19 mortality rate and its demographic and health determinants
The plant pathogenic fungus Cytospora is notoriously known for causing woody plant canker diseases, resulting in substantial economic losses to biological forests and fruit trees worldwide.Despite their strong negative ecological impact, the existing and prospective distribution patterns of these plant pathogens in China, according to climate chang
Mining sites are areas where mining and restoration coexist and are constantly changing.The vegetation condition can reflect the process of surface mining and restoration, while quantifying the impacts of different mining patterns and surrounding environments on vegetation is the key to balancing mining activities and ecological restoration.In this
For the massive multi-cell multi-input multiple-output (MIMO) communication uplink system with unknown channel status information,a resource allocation algorithm which jointly optimizes the pilot sequence length,pilot symbol power and data symbol power was proposed.With real floom the maximum ratio combining (MRC) receiver,the influence of circuit