Pharmacologic Therapy. The type of drug treatment used depends on the type and stage of African trypanosomiasis (sleeping sickness). Management recommendations were published in The Medical Letter on Drugs and Therapeutics in March 2000 (see the Table below). Table.
Casing is the major structural component of a well. The cost of casing is a major part of the overall well cost, so selection of casing size, grade, connectors, and setting depth is a primary engineering and economic consideration.
The traditional ways of defining this are âPly Rating,â âLoad Range,â and âLoad Index.â. What is meant by âPly Rating?â. In the early days of bias tires, casing strength was built up by adding layer upon layer of cotton fabric. The layers were placed with the thread in each layer at an angle to each other.