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.
However, the converse is not true, as can be seen using the example of the cycle graph which is connected and isomorphic to its complement. One can also speak of -connected graphs (i.e., graphs with vertex connectivity ) in which each vertex has degree at least (i.e., the minimum of the degree sequence is ).