While America was undergoing an era of good feeling there were many problems lying under the surface. These social ills were attacked many social reformers. This reform movement was led by people who believed that America could do anything if she put her mind to it. One writer called America, The Israel of our time.. Major reform movements existed in the following areas:
mononuclear. adj. 1. (Physiology) (of a cell) having only one nucleus.
Commitment to the mononuclear phagocyte lineage is determined at the stage of the macrophage and DC progenitor (MDP), at which point, erythroid, megakaryocyte, lymphoid and granulocyte fates have been precluded (Fig. 1). MDPs give rise to monocytes and common DC progenitors (CDPs).