Ventilators — Reported Classifications and their Usefulness

On the 'Usefulness' of Suspect Classifications

Classifications of undernutrition--their limitations and fallacies.

During the last few years, there have been several attempts at 'classifications' or 'gradings' of the severity of undernutrition in children. In most of these exercises, the severity (and/or the 'type') of growth retardation observed in the children has been used as the yard-stick. These classifications have found wide application in many developing countries for the dual purposes of (a) quanti...

[Usefulness of the present renal cell carcinoma classifications].

The purpose of classifying neoplasias is to recognize groups with similar progress and prognosis and, if possible, receiving the same treatment. This is why those classifications are systematically being submitted to review and improvement through the new technologies. Differentiation of various entities in renal cancer has been comparatively fast, as the new genetic and molecular discoveries h...

Cement Windows and Ventilators

(Hi) Materials.?The aggregate may be made with 1 part of cement and 3 to 4 of sand, or 1 of cement with 1 of sand and 3 of coal ashes. Iron wire l/8th to 1/16th inch in diameter should be used in every limb, bar or curve of the window. Kerosene oil is good enough for lubricating the mould. Moulds should be emptied, i.e., windows cast, on a layer of sand, spread out and levelled, to prevent stic...

A comparison of turbine-driven mechanical ventilators and conventional ventilators

Turbine-driven mechanical ventilators have some important advantages over conventional ventilators. The most obvious of these is independence of compressed air supply during patient transport, but higher NIV performance due to higher peak flow is also often mentioned. However, there is still a widespread belief that conventional ventilators using compressed air supplies outperform turbine-drive...