(October 2014) Leukonychia (or leuconychia), also known as white nails or milk spots, is a medical term for white discoloration appearing on nails. It is derived from the Greek words leuko (white) and nychia (nails). The most common cause is injury to the base of the nail (the matrix) where the nail is formed.
There is generally little depth to the content of these articles. Articles are written by staff members or freelance writers. The main purpose of popular periodicals is to entertain the reader, sell products (their own or their advertisers'), and/or promote a viewpoint.
The main purpose of the INTRODUCTION is to give a description of the problem that will be addressed. In this section the researcher might discuss the nature of the research, the purpose of the research, the significance of the research problem, and the research question(s) to be addressed. Three essential parts of a good introduction are: RATIONALE.