Figure 2. The model of coupling/decoupling interactions.
The quantity of ‘+’ and ‘–’ signs respectively convey the strength of the coupling and decoupling interactions, e.g., ‘++++’ is a very strong coupling whereas ‘−’ is a very weak decoupling.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.