It is recommended you receive the rubella vaccination at least one month before trying to become pregnant. TDapâthe TDap vaccine protects against tetanus, diphtheria, and whooping cough (pertussis). This vaccine can be used either before pregnancy or after the 20th week of pregnancy.
Ogive. An Ogive (pronounced O-Jive) is a graph that represents the cumulative frequencies for the classes in a frequency distribution and it is a continuous frequency curve. Ogive has the shape of an elongated 'S' and is sometimes called a double curve with one portion being concave and the other being convex.
A network diagram is a graphical representation of activities with their relationships. A network diagram is used to develop a schedule and to do schedule calculations to determine critical and near critical paths. There are basically two types of network diagrams that are used in developing a schedule. 1  Arrow Network or AoA (Activity on Arrow) or ADM (Arrow Diagramming Method)  Node Network or AoN (Activity or Node) or PDM (Precedence Diagramming Method)