1 Biologya branch of knowledge or study dealing with a body of facts or truths systematically arranged and showing the operation of general laws:the mathematical sciences. 2  Biologysystematic knowledge of the physical or material world gained through observation and experimentation.
Bracha Alpert has identified three different patterns of classroom discourse: (1) silent (the teacher talks almost all the time and asks only an occasional question),(2) controlled (as in the excerpt above), and (3) active (the teacher facilitates while the students talk primarily to each other).
The publish subscribe pattern is one of the most ubiquitous patterns in use today. Events and delegates in c# make it relatively simple to implement the pattern with a few lines of code. However, this implementation is prone to performance issues and potential bugs â if certain conditions are not handled up front.