1 Instead, concentrate on the things you can control in prison, not the things that are out of your reach outside the prison fence. 2  Don't forget to get vaccinated for everything possible before sentencing, your county health service will do it at a reduced cost and it could save your life.
Directed circuit: In a directed graph, a circuit in. which al] the edges are oriented in the same direction. is called a directed circuit. It is often convenient to rep-. resent paths and circuits by the sequence of edges rep-. resenting them.
Quantum graph. In mathematics and physics, a quantum graph is a linear, network-shaped structure of vertices connected by bonds (or edges) with a differential or pseudo-differential operator acting on functions defined on the bonds. Such systems were first studied by Linus Pauling as models of free electrons in organic molecules in the 1930s.