In medicine, there are four levels of care: primary, secondary, tertiary, and quaternary. The levels of care refer to the complexity of the medical cases that healthcare providers treat and the ...

structural biology makes use of some fundamental concepts related to the hierarchical assembly of proteins and nucleic acids (such as macromolecule structure; primary, secondary, tertiary and ...

Figure 1: Common strategy for preparing chiral tertiary alcohols ... chiral functional group (secondary alcohols) into the most difficult to obtain chiral entities—quaternary stereogenic centres ...

In modern economic models that break industry into five sectors – primary, secondary, tertiary, quaternary and quinary – industry work and workplaces fall into the secondary sector ...

All industry is part of a chain that starts with primary ... and secondary industry: the processing of these raw materials into usable products. Next in the chain come tertiary and quaternary ...

There are three main types of wound healing, known as primary, secondary, and tertiary wound healing. Every wound goes through various stages of healing, depending on the type of wound and its ...

Public health, like medicine, focuses on three stages of prevention: primary, secondary, and tertiary. Primary prevention means preventing disease before it occurs by altering behaviors.