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.
PTFE (Polytetrafluoroethylene) is mostly used for the non-stick finish to cookware and roastware. It is also chosen in conjuction with aggresive chemicals. It can be also usedâ¦ for coating hoses, seals and sythetic parts. PTFE is also used for aircraft production, medical grafts, dental floss and piercing jewelry.