Calculations of density and concentration of sugar solutions as a function of temperature using the HP-15C calculator

SIGLECopy held by FIZ Karlsruhe; available from UB/TIB Hannover / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Entwicklung und Erprobung von Sonden zur Ueberwachung des Schadstoffaustrags bei Deponien und Altlasten. T. 1 Geophysikalische Sonden. Abschlussbericht

The topic of the research project was the development of geophysical probes for the control of pollutants emitted from repositories and contaminated sites. The prospection aimed in tracing the direction of flow and the variation in time of the seepage water. The overall aim was therefore the selting up of appropiate probes which are capable of working under stationary conditions and at the same time carrying various geophysical measurements. The established geophysical combined probe contains sensors meausuring temperature, electrical spontaneous potential, redoxpotential and apparent specific electrical resistivity. The probes were applied in prepared dry boreholes on a contaminated site serving as a test-model in Goeda/District Bautzen. The sensors of the probes are connected with a central station where the measurements are taken automatically and data being stored. The measurement-station serves as a control tower for the carrying out of the measurements. The regime of the measurements is programmed by a special software in the datalogger. When the capacity of a memory card is reached the remote data-transfer is ordered by a telefon-modem. The control of a reposity by way of data-transfer which a telefon-modem is thus carried out by a remote head office (offices, engineer's office institute etc.). The almost continous running of the measurement regime allows an automatic recording of all the listed measurement factors and could be employed as a control for the time variation of seepage water and its flow patterns. (orig.)SIGLEAvailable from TIB Hannover: F96B862+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman

The impact of early postoperative cyclosporine serum levels on the incidence of cardiac allograft rejection

The introduction of cyclosporine A (CyA) into the immunosuppressive therapy has significantly improved the results of heart transplantation (HTX). Its nephrotoxicity and hepatotoxicity, however, often limit the perioperative and postoperative use of this drug. The purpose of this retrospective study was to evaluate the effect of early postoperative CyA blood levels on the incidence of early as well as late cardiac rejection and patients' survival. Between October 1985 and June 1991, HTX was performed in 311 patients. Standard immunosuppression consisted of azathioprine (1-2 mg/kg), prednisolone (0.5 to 0.1 mg/kg) and CyA. Rabbit-antithymocyte-globulin (RATG - 1.5 mg/kg) was administered for the first 4 days postoperatively. Moderate rejection was treated with 3 x 500 mg methylprednisolone, severe rejection with RATG (1.5 mg/kg three times a day). Patients were excluded from this study because of a positive cross-matching, early death unrelated to rejection or alternate forms of immunosuppression (n = 111). Follow-up was complete in 200 patients (mean age 44 +/- 11; 18 female, 182 male; 204,233 patient days) with a total of 5380 biopsies. The cohort was divided into group I (no CyA for day 0 to 2; n = 108) and group II (CyA during day 0 to 2; n = 92) according to the onset of CyA therapy. In 101 patients (group A) the mean CyA blood level was less than 150 ng/ml from day 0 to 14 and in 99 patients more than 150 ng/ml (group B).(ABSTRACT TRUNCATED AT 250 WORDS

Density difference measurements on silicon single-crystals by the temperature-of-flotation method

SIGLEAvailable from TIB Hannover: RN 2495(43) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

University of Wisconsin versus St. Thomas' Hospital solution for human donor heart preservation

Prolongation of the safe period of ischemia of the heart is an efficient way to overcome donor organ shortage, as demonstrated in renal and hepatic transplantation. We present the results of a prospective, randomized study comparing preservation with University of Wisconsin solution (UWS) versus St. Thomas' Hospital solution (STS) in clinical heart transplantation. A total of 39 patients were enrolled in the study (n = 20 for UWS and n = 19 for STS). Hemodynamic, electron microscopic, and biochemical evaluation did not reveal any significant differences in postoperative myocardial performance. Only the number of intraoperative defibrillations (0.82 for UWS versus 1.7 for STS) and the rhythm stability after reperfusion (13/20 UWS hearts versus 6/19 STS hearts in sinus rhythm) were significantly different. Heart preservation with UWS and STS appears to be of comparable efficacy at mean ischemic times of less than 4 hours