970 resultados para Culver, Frank


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The screenplay, “Perfect Blood” (Frank and Stein), is the first two-hour episode of a two-part television miniseries Frank and Stein. This creative work is a science fiction story that speculates on the future of Western nations in a world where petroleum is scarce. A major theme that has been explored in the miniseries is the tension between the advantages and dangers of scientific progress without regard to human consequences. “Perfect Blood” (Frank and Stein) was written as part of my personal creative journey, which has been the transformation from research scientist to creative writer. In the exegetical component of this thesis, I propose that a key challenge for any scientist writing science fiction is the shift from conducting empirical research in a laboratory-based situation to engaging in creative practice research. During my personal creative journey, I found that a predominant difficulty in conducting research within a creative practice-led paradigm was unleashing my creativity and personal viewpoint, practices that are frowned upon in scientific research. The aim of the exegesis is to demonstrate that the transformative process from science to art is not neat and well-structured. My personal creative journey was fraught with many ‘wrong’ turns. However, after reflecting on the experience, I realise that every varied piece of research that I undertook allowed me to progress to the next stage, the next draft of Frank and Stein. And via the disorder of the creative process, a screenplay finally emerged that was both structured and creative, which are equally essential elements in screenwriting.

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Mock circulation loops (MCLs) are used to evaluate cardiovascular devices prior to in-vivo trials; however they lack the vital autoregulatory responses that occur in humans. This study aimed to develop and implement a left and right ventricular Frank-Starling response in a MCL. A proportional controller based on ventricular end diastolic volume was used to control the driving pressure of the MCL’s pneumatically operated ventricles. Ventricular pressure-volume loops and end systolic pressure-volume relationships were produced for a variety of healthy and pathological conditions and compared with human data to validate the simulated Frank-Starling response. The non-linear Frank-Starling response produced in this study successfully altered left and right ventricular contractility with changing preload and was validated with previously reported data. This improvement to an already detailed MCL has resulted in a test rig capable of further refining cardiovascular devices and reducing the number of in-vivo trials.

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A physiological control system was developed for a rotary left ventricular assist device (LVAD) in which the target pump flow rate (LVADQ) was set as a function of left atrial pressure (LAP), mimicking the Frank-Starling mechanism. The control strategy was implemented using linear PID control and was evaluated in a pulsatile mock circulation loop using a prototyped centrifugal pump by varying pulmonary vascular resistance to alter venous return. The control strategy automatically varied pump speed (2460 to 1740 to 2700 RPM) in response to a decrease and subsequent increase in venous return. In contrast, a fixed-speed pump caused a simulated ventricular suction event during low venous return and higher ventricular volumes during high venous return. The preload sensitivity was increased from 0.011 L/min/mmHg in fixed speed mode to 0.47L/min/mmHg, a value similar to that of the native healthy heart. The sensitivity varied automatically to maintain the LAP and LVADQ within a predefined zone. This control strategy requires the implantation of a pressure sensor in the left atrium and a flow sensor around the outflow cannula of the LVAD. However, appropriate pressure sensor technology is not yet commercially available and so an alternative measure of preload such as pulsatility of pump signals should be investigated.

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Left to Right: Ernest Goldschmidt, Ilse Goldschmidt born Molling, and Frank Goldschmidt. The picture was taken on the occasion of Ilse's 80th birthday party 22 Dec 1989 Laguna Hills, CA.

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Left to Right: Ernest Goldschmidt, Ilse Goldschmidt born Molling, and Frank Goldschmidt. The picture was taken on the occasion of Ilse's 80th birthday party 22 Dec 1989 Laguna Hills, CA.

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Handwritten caption: Wir tragen nur Bemberg-Seidenstruempfe! (We wear only Bemberg silk stockings!)

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Left to Right: Ernest Goldschmidt, Ilse Goldschmidt born Molling, and Frank Goldschmidt. The picture was taken on the occasion of Ilse's 80th birthday party 22 Dec 1989 Laguna Hills, CA.

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Left to Right: Ernest Goldschmidt, Ilse Goldschmidt born Molling, and Frank Goldschmidt. The picture was taken on the occasion of Ilse's 80th birthday party 22 Dec 1989 Laguna Hills, CA.

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Page 57 of the "American Jewish Cavalcade" scrapbook of Leo Baeck in New York found in ROS 10 Folder 3

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Se realizó un estudio en la finca experimental La Compañía ubicada en el departamento de Carazo, Nicaragua, durante la época de primera de 1989. Con los objetivos siguientes; determinar la dosis de benomyl óptima en el control de la mustia hilachosa, Determinar la afectación de los rendimientos por efecto de la enfermedad en cuatro variedades de frijol común. Se obtuvieron 3 dosis de benomyl. 0.3, 0.6, 1.0 gramo por litro de agua y las variedades, 9ª. Talamanca, BAT 1155, Revolución 81 y Revolución 79A.. Los resultados mostraron que los porcentajes de severidad por la enfermedad alcanzaron hasta un 33 por ciento como máximo. Las dosis de Benomyl aplicadas para proteger el cultivo tuvieron un efecto marginal sobre la severidad de la enfermedad y los rendimientos. Así mismo estas aplicaciones no tuvieron efectos económicos. Talamanca y Revolución 81 presentaron menores porcentajes de severidad que BAT 1155 Revolución 79A.. Siendo Talamanca la variedad que obtuvo los más altos rendimientos, sin embargo fue la única variedad afectada por la enfermedad resultando una relación inversa entre severidad y rendimiento.