Degenerativer Innenmeniskusschaden und Geometrie des Kniegelenks: prospektive MRT-Fallstudie

Der degenerative Innenmeniskusschaden ist eine der häufigsten unfallchirurgisch- orthopädischen Erkrankungen. Im Hinblick darauf, dass bei einem Teil der Patienten Körpergröße oder sportliche Belastungen für dieses Krankheitsbild im Sinne eines Risikofaktors mitverantwortlich sind, ergeben sowohl in Bezug auf die Behandlung als auch im Rahmen von Begutachtungen mitunter Unklarheiten. Ziel der Arbeit war es zu untersuchen, ob die Größe des Innenmeniskus und der relative Anteil im Bezug zum Diameter der Gelenkfläche mögliche assoziierte Faktoren für degenerative Rissbildungen ist. In der Zeit von 10.10.2017-25.09.2018 haben 646 Patienten in der radiologischen Gemeinschaftspraxis in Eisenach an der MRT-Knie-Studie teilgenommen. Insgesamt wurden die Daten von 381 Patienten (220 Frauen und 161 Männer) im Alter von 12 bis 82 Jahren (Median 50,0 ± 16,4 Jahre) analysiert. Ergebnisse und Schlussfolgerung: In der Gruppe Stoller II/III wurden größere Innenmenisken nachgewiesen als in der Gruppe Stoller 0/I, vor allem für die Breite zwischen Hinterhorn und Pars Intermedia (Stoller II/III 19,2 mm, Stoller 0/I 15,7 mm bei Männern und Stoller II/III 16,6 mm, Stoller 0/I 14,3 mm bei Frauen). Damit konnte entsprechend der Vermutung bestätigt werden, dass größere Menisken mit Rissschaden signifikant häufiger assoziiert sind. Eine mögliche Ursache für das Versagen von Nähten kann ein übergroßer Meniskus sein. Bei der Entscheidung über eine Operation sollte die Größe des Meniskus' als bedeutender Faktor berücksichtigt werden. Die Ergebnisse haben möglicherweise auch für die Beurteilung einer Schadensanlage für einen degenerativen Meniskusschaden (zum Beispiel bei der Begutachtung der BK 2102) in Zukunft Bedeutung

Minor International Students in Canada: Does the Legal Framework Matter?

As Federal and provincial governments invest to “ help secure Canada’s long – term prosperity and economic success” (DFATD, 2014; Scott et al. 2015) through increased international student recruitment and retention, there is a steady increase in international student numbers with a proportionate increase in international students under age of 18. This MRP examines the implication of this growth particular among minor international students (18 and younger) in a policy context in Canada where there is contradiction between provincial age of majority regulations and no requirement for guardianship for incoming minor international students. Unlike Canada two other jurisdictions, namely Australia’s and the UK’s which have also invested in increasing international students numbers, have established frameworks to ensure the safeguarding of international minors. This MRP will offer a comparative lens to examine frameworks in three jurisdictions with reference to minor international students and provide recommendations for Canadian regulatory framework. The legal protection of international students minors is a human rights issue with ethical implications for the Canadian government and institutions that are equally invested in recruiting international students. Thus this study recommends Canada must take responsibility in aligning federal immigration and legal provincial systems to better protect minor international students. These actions are necessary to protect Canada’s reputation, and ensure that the immigration of international students will continue to grow in Canada

Comparison of nonlinear wave-loading models on rigid cylinders in regular waves

© 2019 by the authors. Monopiles able to support very large offshore wind turbines are slender structures susceptible to nonlinear resonant phenomena. With the aim to better understand and model the wave-loading on these structures in very steep waves where ringing occurs and the numerical wave-loading models tend to lose validity, this study investigates the distinct influences of nonlinearities in the wave kinematics and in the hydrodynamic loading models. Six wave kinematics from linear to fully nonlinear are modelled in combination with four hydrodynamic loading models from three theories, assessing the effects of both types of nonlinearities and the wave conditions where each type has stronger influence. The main findings include that the nonlinearities in the wave kinematics have stronger influence in the intermediate water depth, while the choice of the hydrodynamic loading model has larger influence in deep water. Moreover, finite-depth FNV theory captures the loading in the widest range of wave and cylinder conditions. The areas of worst prediction by the numerical models were found to be the largest steepness and wave numbers for second harmonic, as well as the vicinity of the wave-breaking limit, especially for the third harmonic. The main cause is the non-monotonic growth of the experimental loading with increasing steepness due to flow separation, which leads to increasing numerical overpredictions since the numerical wave-loading models increase monotonically

Regulating Sustainable Finance in Capital Markets: A Perspective from Socially Embedded Decentered Regulation

We present an ab initio theoretical analysis of the temperature-dependent stability of inherently nanolaminated (Cr1−xMnx)2AlC. The results indicate energetic stability over the composition range x = 0.0 to 0.5 for temperatures ≥600 K. Corresponding thin film compounds were grown by magnetron sputtering from four elemental targets. X-ray diffraction in combination with analytical transmission electron microscopy, including electron energy-loss spectroscopy and energy dispersive x-ray spectroscopy analysis, revealed that the films were epitaxial (0001)-oriented single-crystals with x up to 0.16.Funding Agencies|European Research Council under the European Community|258509227754|Knut and Alice Wallenberg Foundation||Swedish Research Council|||DFG-SPP 1299|</p

GC-MS and q-NMR based chemotaxonomic evaluation of two Leonurus species

Introduction - The genus Leonurus L. (fam: Lamiaceae) is represented in Uzbekistan by two species, L. panzerioides Popov. and L. turkestanicus V. I. Krecz. & Kuprian, which are used to treat nervous disorders and also as sedative and hypotensive agents. Objectives – To establish the taxonomic status of L. panzerioides and L. turkestanicus based on their chemical constituents analyzed by GC-MS and q-NMR. Materials and Methods – Quantitative 1H NMR (q-NMR) was used to identify and quantify known major components in the methanol extracts of these two species. Additionally, the chemical composition of the essential oils obtained from the aerial parts of these plants were analyzed by GC-MS. Results – The q-NMR analyses of L. panzerioides and L. turkestanicus revealed the presence 8-acetylharpagide, harpagide, leonurine and stachydrine as major components. Using the GC-MS method, overall 24 and 39 constituents were identified, respectively, from L. panzerioides and L. turkestanicus oils. The major constituents of the essential oil of L. panzerioides were eugenol (30.9%) and p-vinyl guaiacol (15.8%), whereas thymol (40.1%) and octen-3-ol (13.1%) were the principal compounds in the essential oil of L. turkestanicus. Conclusion – The major components in L. panzerioides and L. turkestanicus as identified by the GC-MS and q-NMR analyses, were similar to those present in other Leonurus species and thus provided chemotaxonomic evidence for the placement of these species under the genus Leonurus

Роль магистратуры в процессе гармонизации европейского пространства высшего образования

In this paper, we report the by first-principles predicted properties of the recently discovered magnetic MAX phase Mn2GaC. The electronic band structure and vibrational dispersion relation, as well as the electronic and vibrational density of states, have been calculated. The band structure close to the Fermi level indicates anisotropy with respect to electrical conductivity, while the distribution of the electronic and vibrational states for both Mn and Ga depend on the chosen relative orientation of the Mn spins across the Ga sheets in the Mn–Ga–Mn trilayers. In addition, the elastic properties have been calculated, and from the five elastic constants, the Voigt bulk modulus is determined to be 157 GPa, the Voigt shear modulus 93 GPa, and the Young's modulus 233 GPa. Furthermore, Mn2GaC is found relatively elastically isotropic, with a compression anisotropy factor of 0.97, and shear anisotropy factors of 0.9 and 1, respectively. The Poisson's ratio is 0.25. Evaluated elastic properties are compared to theoretical and experimental results for M 2 AC phases where M = Ti, V, Cr, Zr, Nb, Ta, and A = Al, S, Ge, In, S