971 resultados para theoretische Teilchenphysik, Extra-Dimensionen, Flavor, Higgs, Präzisionstests
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Komplexe Interventionen wie z.B. klinische Behandlungspfade leisten einen Beitrag zu verbesserten Patientenergebnissen – falls sie denn gut implementiert sind. Sie stellen hohe Anforderungen an die Evaluation: Im Vorfeld müssen Überlegungen zu Kontext und zu angenommenen Ursache-Wirkungs-Zusammenhängen stattfinden und wichtige Stakeholder sollten dabei einbezogen sein. Bevor nach der Wirkung einer Maßnahme gefragt werden kann, muss zuerst deren Implementierung überprüft werden. Andernfalls können Ergebnisse der Wirkungsanalyse nur teilweise mit der Intervention in Verbindung gebracht, und Evaluationsergebnisse können nur schwer für die Verbesserung der Maßnahme genutzt werden.
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We investigate the consequences of one extra spatial dimension for the stability and energy spectrum of the non-relativistic hydrogen atom with a potential defined by Gauss' law, i.e. proportional to 1 /| x | 2 . The additional spatial dimension is considered to be either infinite or curled-up in a circle of radius R. In both cases, the energy spectrum is bounded from below for charges smaller than the same critical value and unbounded from below otherwise. As a consequence of compactification, negative energy eigenstates appear: if R is smaller than a quarter of the Bohr radius, the corresponding Hamiltonian possesses an infinite number of bound states with minimal energy extending at least to the ground state of the hydrogen atom.
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Welsch (Projektbearbeiter): Reichsverfassungskampagne in Sachsen
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Welsch (Projektbearbeiter): Reichsverfassungskampagne in Sachsen
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Welsch (Projektbearbeiter): Rede Erzherzog Johanns anläßlich der Eröffnung des österreichischen Reichstages: Bestätigung der erworbenen Freiheiten, Gleichberechtigung aller Nationalitäten, Rechtfertigung des Krieges in Italien. Samt Antwort des Reichstagspräsidenten
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Minimal invasive extracorporeal circulation (MiECC) systems have initiated important efforts within science and technology to further improve the biocompatibility of cardiopulmonary bypass components to minimize the adverse effects and improve end-organ protection. The Minimal invasive Extra-Corporeal Technologies international Society was founded to create an international forum for the exchange of ideas on clinical application and research of minimal invasive extracorporeal circulation technology. The present work is a consensus document developed to standardize the terminology and the definition of minimal invasive extracorporeal circulation technology as well as to provide recommendations for the clinical practice. The goal of this manuscript is to promote the use of MiECC systems into clinical practice as a multidisciplinary strategy involving cardiac surgeons, anaesthesiologists and perfusionists.
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Welsch (Projektbearbeiter): Satire auf reißerische Sensationsmeldungen, die sich in der Folge als unwahr herausstellen
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BACKGROUND Trans-olecranon chevron osteotomies (COs) remain the gold standard surgical approach to type C fractures of the distal humerus. This technique is associated with a high complication rate and development of an extra-articular olecranon osteotomy may be advantageous. The aim of this study was to compare the load to failure of COs with extra-articular oblique osteotomies (OOs) as well as modified, extra-articular step osteotomies (SOs). METHODS These three osteotomies and their subsequent fixation utilizing a standardized tension band wiring technique were tested in 42 composite analog ulnae models at 20° and 70° of flexion. Triceps loading was simulated with a servo hydraulic testing machine. All specimens were isometrically loaded until failure. Kinematic and force data, as well as interfragmentary motion were recorded. RESULTS At 70°, CO failed at a mean load of 963N (SD 104N), the OO at 1512N (SD 208N) and the SO at 1484N (SD 153N), (P<0.001). At 20°, CO failed at a mean load of 707N (SD 104N) and OO at 1009N (SD 85N) (P=0.006). The highest load to failure was observed for the SO, which was 1277N (SD 172N). The load to failure of the SO was significantly higher than the CO as well as the OO. CONCLUSION Extra-articular osteotomies showed a significantly higher load to failure in comparison to traditional CO. At near full extension (20° of flexion), this biomechanical advantage was further enhanced by a step-cut modification of the extra-articular oblique osteotomy.
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Welsch (Projektbearbeiter): Forderung nach Einführung des Standrechts in Breslau nach dem dortigen Ausbruch blutiger Unruhen seitens "200 Personen des niedrigsten Gesindels" (17. April 1848). Bis auf den Erscheinungsvermerk mit Sf 16/35 identisch