The rules for classifying the investigated proteins into TAP families define mandatory ("should") as well as forbidden ("should not") conserved protein domains in those families.
High-intensity physician staffing in intensive care units (ICUs), known as a closed ICU model, is defined as mandatory transfer of responsibility for the care of every critically ill patient to an intensivist-led team or mandatory consultation by an intensivist [ 1].
Mine was one I would have once defined as mandatory, but my definitions have changed, so I stayed home.
Furthermore, regarding header extension, PacketCable has also defined 23 mandatory headers that CMS must support [20].
To address unstable environments, a group of several modulation and channel coding techniques were defined as mandatory by this wireless standard.
The experimental activity devoted to its electrical and thermal characterization, which can be defined as mandatory in order to obtain an evaluation of the features, is presented and deeply discussed.
While SP has been defined by mandatory cardiovascular, central nervous system (CNS) and respiratory system studies ever since the core battery was elaborated, it also involves evaluation of drug effects on other physiological systems.
The structure of an ECMO team could be similar to that of the high-intensity ICU staffing model, which is defined as mandatory intensivist consultation or the presence of a dedicated intensivist in the ICU [24].
