The design, development and documentation of software. See software engineer, systems analysis & design, programming, object-oriented programming, software metrics, CASE and Systemantics.
Overview. Posttransplant lymphoproliferative disease (PTLD) is an unusual entity that has many features of an immune system malignancy. It is characterized by uncontrolled proliferation of lymphoid lineage cells (typically B cells, rarely non-B lineage) in a context of posttransplant immunosuppression.
Gas tungsten arc welding (GTAW), also. known as tungsten inert gas (TIG) welding, is an arc welding process that. uses a non-consumable tungsten. electrode to produce the weld. The. weld area is protected from. atmospheric contamination by an inert.