Carattere, narrazione, variazione. Studi sul valore urbano dell'architettura

Il volume (Pagg 250) raccoglie gli esiti di tre tesi del Dottorato di ricerca in Composizione architettonica della Scuola di dottorato Iuav sull\u2bcopera di John Soane, Saverio Muratori e Erik Gunnar Asplund. L\u2bcautrice ha curato il volume e scritto il saggio \u2bbIl valore urbano dell\u2bcarchitettura\u2bc. (pagg. 8-41) Nel saggio sono prese in considerazione diverse posizioni sul rapporto tra architettura e citt\ue0

[Non-invasive evaluation of cardic output by analysis of peripheral pressure profile in patients recovering in intensive care].

BACKGROUND: The analysis of the arterial pulse contour obtained by means of a non-invasive device (Finapres) seems to be an ideal method to measure cardiac output (CO). An individual calibration factor (Z) dimensionally equal to aortic impedence is the necessary pre-requisite to calculate CO by pulse contour analysis. To verify the reliability of non-invasive pulse contour method, we compared the COs measured from Finapres tracings with those measured from thermodilution method in Intensive Care patients. METHODS: In 9 patients undergoing cardiac and general surgery, CO was measured from thermodilution (COTD) within 24 hours of postoperative period (total of 67 measurements). During COTD measurements, Finapres tracings were recorded and then analysed to calculate CO by two different procedures. In the former (COA), Z was calculated from an algorithm which takes into account heart rate, mean arterial pressure and age of the patient. In the latter procedure (COB), Z was experimentally determined from the initial COTD measure and then updated for the hemodynamic conditions of the patient. RESULTS: COTD ranged between 3.5 and 9.5 L.min-1 (mean value 5.53 +/- 1.29 L.min-1). The mean difference between COTD e COA was 0.485 +/- 1.537 L.min-1 and the mean percentage error was 25.1 +/- 14.5%. The experimental determination of Z reduced the mean difference and the mean percentage error between thermodilution and Finapres method to--0.002 +/- 1.056 L.min-1 and 15.5 +/- 11.0%, respectively. The regression line between COTD and COB turned out to be: COB = 0.68 + 0.88.COTD (r = 0.73). CONCLUSIONS: The pulse contour analysis applied to Finapres tracing allows to calculate CO with reasonable accuracy in the intensive care patients. An initial experimental determination of Z is recommended to improve the accuracy of Finapres method

La ricostruzione dei souk di Beirut

6nonenoneG. Fraziano; R. Beraldo; L. Buran; L. Dal Pos; G. Guaragna; B. Macor; G. MARRASG., Fraziano; R., Beraldo; L., Buran; L., Dal Pos; Guaragna, Gianfranco; B., Macor; Marras, Giovann

Severe hypoxemia and pulmonary hypertension during orthotopic liver transplantation: a successful use of inhaled nitric oxide.

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Light emission microscopy as a tool for studying Si/SiO2 system degradation

Emission microscopy can be used as a tool for failure analysis and testing of Integrated Circuits. It can be used successfully to study reliability issues of Si/SiO2 systems. It is possible to locate the defect position on different devices, and to analyze the nature of the defect. Emission microscopy can be used to investigate current flows in semiconductor devices and to analyze the current distributions and its dependence on device layout