Abstract Unter den möglichen Verfahren zur überwachung des Filtrationsprozesses ist die Messung Differenzdruckes üblichste Variante. Hier existieren mehrere Verfahren, von der visuellen Kontrolle über Manometer, Weiterleitung eines analogen Signals

− The results of a comparison in differential pressure between CEM-Spain and CENAM-Mexico are presented here. The comparison was performed in 2008. A high accuracy digital manometer was used for the comparison. The manometer had good behaviour during the period of the comparison, having a small drift which had no effect in the comparison. The results of the measurements showed very good agreeme...

In the hen, injection of either vasotocin or oxytocin caused expulsion of the egg 1 to 20 hr prematurely (Rzasa & Ewy, 1970). The effect of these hormones on pressure within the uterus (shell gland) is reported. Fifteen New Hampshire, laying hens (no egg in utero) were used. Hens were anaesthetized with sodium phenobarbitone (160 mg/kg) injected i.m. Intrauterine pressure was recorded on a kymo...

OBJECTIVES The purpose of this study was to understand the reason for variation in the sensitivity of different methods of detecting right-to-left shunts (RLS). BACKGROUND Patent foramen ovale (PFO) is implicated in the pathogenesis of cryptogenic stroke, decompression illness, and migraine headaches. Intravenous agitated saline injections with tomographic imaging (transthoracic, transesophag...