Anton von Werner beim Cellospiel

Signatur des Originals: S 36/G13733

Franz Anton Rösler, Brustbild, Profil

Signatur des Originals: S 36/G04342

Anton Schweitzer, Brustbild

Signatur des Originals: S 36/G04382

Paar mit Laute, Musikszene

Signatur des Originals: S 36/G04513

Hemodynamic changes associated with manual and automated lateral rotation in mechanically ventilated intensive care patients

Objective: To investigate hemodynamic responses to lateral rotation. ^ Design: Time-series within a randomized controlled trial pilot study. ^ Setting: A medical intensive care unit (ICU) and a medical-surgical ICU in two tertiary care hospitals. ^ Patients: Adult patients receiving mechanical ventilation. ^ Interventions: Two-hourly manual or continuous automated lateral rotation. ^ Measurements and Main Results: Heart rate (HR) and arterial pressure were sampled every 6 seconds for > 24 hours, and pulse pressure (PP) was computed. Turn data were obtained from a turning flow sheet (manual turn) or with an angle sensor (automated turn). Within-subject ensemble averages were computed for HR, mean arterial pressure (MAP), and PP across turns. Sixteen patients were randomized to either the manual (n = 8) or automated (n = 8) turn. Three patients did not complete the study due to hemodynamic instability, bed malfunction or extubation, leaving 13 patients (n = 6 manual turn and n = 7 automated turn) for analysis. Seven patients (54%) had an arterial line. Changes in hemodynamic variables were statistically significant increases ( p < .05), but few changes were clinically important, defined as ≥ 10 bpm (HR) or ≥ 10 mmHg (MAP and PP), and were observed only in the manual-turn group. All manual-turn patients had prolonged recovery to baseline in HR, MAP and PP of up to 45 minutes (p ≤ .05). No significant turning-related periodicities were found for HR, MAP, or PP. Cross-correlations between variables showed variable lead-lag relations in both groups. A statistically, but not clinically, significant increase in HR of 3 bpm was found for the manual-turn group in the back compared with the right lateral position ( F = 14.37, df = 1, 11, p = .003). ^ Conclusions: Mechanically ventilated critically ill patients experience modest hemodynamic changes with manual lateral rotation. A clinically inconsequential increase in HR, MAP, and PP may persist for up to 45 minutes. Automated lateral rotation has negligible hemodynamic effects. ^

Long-term Tillage and Crop Rotation Effects on Soil Carbon and Soil Productivity

Tillage system and crop rotation have a significant, long-term effect on soil productivity and soil quality components such as soil carbon and other soil physical, biological, and chemical properties. In addition, both tillage and crop rotation have effects on weed and soil disease control. There is a definite need for well-defined, long-term tillage and crop rotation studies across the different soils and climate conditions in the state. The objective of this study was to evaluate the long-term effects of different tillage systems and crop rotations on soil productivity

Long-term Tillage and Crop Rotation Effects on Yield

Tillage system and crop rotation have a major long-term effect on soil productivity and soil quality components such as soil carbon and other soil physical, biological, and chemical properties. In addition, both tillage and crop rotation have effects on weed and soil disease control. There is a need for well-defined, longterm tillage and crop rotation studies across the different soils and climate conditions in the state. The objective of this study was to evaluate the long-term effects of different tillage systems and crop rotations on soil productivity.

Jorge H. Evans Civit (ed.), Antología del Index Aristotelicus de H. Bonitz, Buenos Aires, Santiago Arcos, 2010. Colaboradores del área de Lenguas Clásicas: L. Sardi de Estrella, E. Driban, E. Cecco, M.E. Guevara de Álvarez, C. Silventi, M.G. Barandica. Colaboradores del área de Filosofía: J.H. Evans Civit, D. Lema Sarmento, T. Squizzato, I. Anton Mlinar; ISBN 978-987-1240-53-1; 640 pág.

Fil: Bieda, Esteban.

Jorge H. Evans Civit (ed.), Antología del Index Aristotelicus de H. Bonitz, Buenos Aires, Santiago Arcos, 2010. Colaboradores del área de Lenguas Clásicas: L. Sardi de Estrella, E. Driban, E. Cecco, M.E. Guevara de Álvarez, C. Silventi, M.G. Barandica. Colaboradores del área de Filosofía: J.H. Evans Civit, D. Lema Sarmento, T. Squizzato, I. Anton Mlinar

Fil: Bieda, Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas