Aristoteles (384-322) verwendete den Begriff „geometrische Analogie“ zur Beschreibung der Gleichheit zweier quantitativer oder qualitativer Verhältnisse [Co02]. Beispiele: „1 verhält sich zu 2 wie 5 zu 10“ oder „Die Federn sind für den Vogel, was die Schuppen für den Fisch sind“. Eine informatische Modellierung beginnt manchmal mit der Formulierung qualitativer geometrischer Analogien. Ein Beis...

SYNOPSIS The suitability of freeze-dried plasmas from patients on oral anticoagulants to serve as reference material in the calibration of thromboplastins used in the control of oral anticoagulant treatment was assessed in two centres. One pooled normal plasma and four pooled plasmas from patients at different levels of anticoagulation were collected into HEPES-citrate containing Trasylol. The ...

Deposition of thrombotic material on catheters was observed following more than 50% of 93 diagnostic catheterizations. The incidence of deposition of thrombotic material on catheters remaining in the body for more than 1 day was 100%. Polyethylene and siliconized polyurethane catheters were less thrombogenic than Teflon end-occluded catheters. A definite time relationship between the thrombus f...

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conclusions although skin traction had no effect on analgesic consumption, it significantly decreased the pain at the end of the first day. the application of skin traction in patients with intertrochanteric fractures is recommended. results the severity of pain was significantly decreased in skin traction group only at the end of the first day after traction application (2.7 ± 0.8 vs. 3.3 ± 0....

Analog circuits are essential in everyday life and electrical engineering [...]

due to the expected increase of defects in circuits based on deep submicron technologies, reliability has become an important design criterion. although different approaches have been developed to estimate reliability in digital circuits and some measuring concepts have been separately presented to reveal the quality of analog circuit reliability in the literature, there is a gap to estimate re...

Due to the expected increase of defects in circuits based on deep submicron technologies, reliability has become an important design criterion. Although different approaches have been developed to estimate reliability in digital circuits and some measuring concepts have been separately presented to reveal the quality of analog circuit reliability in the literature, there is a gap to estimate re...