Ein optisch-elektronisches Verfahren zur quantitativen Erfassung der vorderen Augenabschnitte

SIGLEDEGerman

NACA Technical Memorandums

"The present report, which deals with pressure-distribution measurements made on a sweptback wing with a jet engine nacelle, is similar to a report on pressure-distribution measurements on a rectangular wing with a jet engine nacelle (second partial report). Here, in investigations preliminary to high-speed measurements, as in the second partial report, useful arrangements and fillet designs have been discovered" (p. 1)

On the Installation of Jet Engine Nacelles on a Wing Fourth Partial Report: Pressure-Distribution Measurements on a Sweptback Wing with Jet Engine Nacelle

The present report, which deals with pressure-distribution measurements made on a sweptback wing with a jet engine nacelle, is similar to a report on pressure-distribution measurements on a rectangular wing with a jet engine nacelle (second partial report). Here, in investigations preliminary to high-speed measurements, as in the second partial report, useful arrangements and fillet designs have been discovered

Patient characteristics and valuation changes impact quality of life and satisfaction in total knee arthroplasty results from a German prospective cohort study.

Background: Evaluation of variations in pre- and postoperative patient reported outcomes (PRO) and the association between preoperative patient characteristics and health and satisfaction outcomes after total knee arthroplasty (TKA) may support shared decision-making in Germany. Since previous research on TKA health outcomes indicated valuation differences in longitudinal data, experienced-based population weights were used for the first time as an external valuation system to measure discrepancies between patient and average population valuation of HRQoL.Methods: Baseline data (n = 203) included sociodemographic and clinical characteristics and PROs, measured by the EQ-5D-3 L and WOMAC. Six-month follow-up data (n = 161) included medical changes since hospital discharge, PROs and satisfaction. A multivariate linear regression analysis was performed to evaluate the relationship between preoperative patient characteristics and PRO scores. Patient acceptable symptom state (PASS) was calculated to provide a satisfaction threshold. Patient-reported health-related quality of life (HRQoL) valuations were compared with average experienced-based population values to detect changes in valuation.Results: One hundred thirty-seven subjects met inclusion criteria. All PRO measures improved significantly. Preoperative WOMAC and EQ-5D VAS, housing situation, marital status, age and asthma were found to be predictors of postoperative outcomes. 73% of study participants valued their preoperative HRQoL higher than the general population valuation, indicating response shift. Preoperatively, patient-reported EQ-5D VAS was substantially higher than average experienced-based population values. Postoperatively, this difference declined sharply. Approximately 61% of the patients reported satisfactory postoperative health, being mainly satisfied with results if postoperative WOMAC was >= 82.49 (change >= 20.25) and postoperative EQ-5D VAS was >= 75 (change >= 6).Conclusion: On average, patients benefited from TKA. Preoperative WOMAC and EQ-5D VAS were predictors of postoperative outcomes after TKA. Particularly patients with high absolute preoperative PRO scores were more likely to remain unsatisfied. Therefore, outcome prediction can contribute to shared-decision making. Using general population valuations as a reference, this study underlined a discrepancy between population and patient valuation of HRQoL before, but not after surgery, thus indicating a potential temporary response shift before surgery

Power generation from nuclear fusion not expected in the foreseeable future : Applied research developing dynamically

POWER GENERATION FROM NUCLEAR FUSION NOT EXPECTED IN THE FORESEEABLE FUTURE : APPLIED RESEARCH DEVELOPING DYNAMICALLY DIW weekly report (Rights reserved) (-) Power generation from nuclear fusion not expected in the foreseeable future : Applied research developing dynamically / Wimmers, Alexander J. (Rights reserved) (-

Kommerzielle Energieerzeugung mit Kernfusion nicht absehbar: Anwendungsforschung entwickelt sich dynamisch

Die Kernfusion wurde seit den 1940er Jahren für die militärische Nutzung entwickelt. Die Hoffnungen, diese Technik in wenigen Jahrzehnten für die Energieerzeugung nutzen zu können, haben sich bis heute nicht erfüllt. Trotz einiger medial aufgegriffener Erfolge, wie bei den Experimenten der National Ignition Facility in Kalifornien Ende 2022, sind die wesentlichen Herausforderungen heute nicht kleiner als in der Vergangenheit. Eine Untersuchung von Expert*innenmeinungen zeigt, dass noch kein konkreter Pfad zu einer kommerziellen Nutzung dargelegt werden kann. Repräsentativ für allgegenwärtige Verzögerungen ist das vormalige Vorzeigeprojekt International Thermonuclear Experimental Reactor (ITER): 1985 von den USA und der Sowjetunion initiiert, musste seit den 1990er Jahren der Beginn der Forschungsarbeiten immer weiter verschoben werden. Inzwischen ist die Inbetriebnahme der Fusionsexperimente erst für die späten 2030er Jahre vorgesehen. Gleichzeitig entstehen neue, privat kofinanzierte Unternehmensstrukturen, welche sich auf konkrete Anwendungen fokussieren, wie die Entwicklung von Magnetspulen und Lasertechnik. Die deutsche, europäische und internationale Forschungsförderung muss sich auf die neuen Entwicklungen einstellen und insbesondere die Großforschungseinrichtungen in Bezug auf das Ziel Kernfusion kritisch hinterfragen

Kommerzielle Energieerzeugung mit Kernfusion nicht absehbar : Anwendungsforschung entwickelt sich dynamisch

KOMMERZIELLE ENERGIEERZEUGUNG MIT KERNFUSION NICHT ABSEHBAR : ANWENDUNGSFORSCHUNG ENTWICKELT SICH DYNAMISCH DIW-Wochenbericht (Rights reserved) (-) Kommerzielle Energieerzeugung mit Kernfusion nicht absehbar : Anwendungsforschung entwickelt sich dynamisch / Wimmers, Alexander J. (Rights reserved) (-