This exchange of gases occurs rapidly (fractions of a second). The carbon dioxide then leaves the alveolus when you exhale and the oxygen-enriched blood returns to the heart. Thus, the purpose of breathing is to keep the oxygen concentration high and the carbon dioxide concentration low in ...
The pioneers of this technique were John Enders, Frederick Robbins and Thomas Weller, and their method was rapidly applied to vaccine development40. The 1950s was the era of the great poliovirus vaccine controversies, during which both an inactivated vaccine and a live vaccine were developed, the...
However, the number of causative genes is growing very rapidly thanks to the improvement of sequencing techniques, and the classical testing of one gene after the other is progressively being replaced by diagnostic kits allowing multiple genes to be tested in parallel. Access to all SPG variants ...
The UK and many countries in Europe have faced increased new infections and deaths by the Delta variant, which rapidly became the dominant variant worldwide [178]. The advantage of this Delta variant is the combination of high transmissibility and immune system evasion, besides being less ...
The processes are designed to create predictable results, while there is the capacity to rapidly adjust to the changed needs of customers and stakeholders. Processes must be managed in order to search for efficiency and effectiveness in the activities, in order to add value to the organization ...