Then, we identify some key concepts, that can be considered as common guidelines and goals in the development of modern advanced environments, and we come up with a "classification" of these environments into two main classes: programming environments and problems solving environments.
Emery and Trist (1965) classification of business environments as existing on a continuum with shades of placid, disturbed-reactive, turbulent and dynamic environments supports existence of agglomeration and clusters in different business spheres and location (Sonobe & Otsuka, 2016).
In general, there are different conceptual frameworks for the classification of learning environments in the classroom and for differentiating activities and cognitive processes during learning.
A fundamental challenge in urbanisation studies is the absence of an accepted standard for the classification of urban environments (5).
The the three-letter labels of the KEGG atoms, such as "C1a" meaning a methyl carbon, represent the hierarchical classification of atom environments.
In spite of few differences of some importance, such as the one- or two-tier (workers versus general public) structure, or the classification of the environments rather than of the exposed personnel, these standards show close similarities and are based on the same approach and rationale as ICNIRP guidelines.
In table 2, we summarize the nine studied environment types, the number of samples of each type, the number of sequences found for each of the housekeeping genes in each environment, and the classification of the environment types according to host-association and expected level of antibiotic exposure.
Starting from the classification of built environment according to Rapoport's view, the "environment" consists of fixed, semi-fixed and unfixed elements (A.
