What does the term 'to promote the general welfare' mean to you in the preamble of the constitution of the US?
Relative humidity. Relative humidity (RH) is the ratio of the partial pressure of water vapor to the equilibrium vapor pressure of water at a given temperature. Relative humidity depends on temperature and the pressure of the system of interest.
Rho(D) immune globulin is a medication used to prevent Rh isoimmunization in mothers who are Rh negative and to treat idiopathic thrombocytopenic purpura (ITP) in people who are Rh positive. It is often given both during and following pregnancy. It may also be used when Rh negative people are given Rh positive blood.