887 research outputs found
Putz, Mozart, Galois - Symmetrie und Asymmetrie als Vermittlerin zwischen Form und Inhalt
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Quantitative morphology of the subchondral plate of the tibial plateau
No full textThe object of the present investigation was to measure the thickness distribution of the subchondral plate of the tibial plateau. The data were obtained by computerised image analysis of serial sections. The measured values revealed a marked difference in the thickness between the various regions of the joint surface. Thinner zones (100-300 microns) are found in the peripheral region near the margin of the tibial plateau. Thickness maxima (up to 1500 microns and more) are to be seen at the centres of the joint surfaces. The relationship between the thickness distribution of the subchondral plate and information about the stress distribution of this particular joint surface support the conclusion that the morphology of the subchondral plate of the tibial plateau is determined by the function of the joint
Demonstration of subchondral bone density patterns by three-dimensional CT-osteoabsorptiometry (CT-OAM) as a non-invasive method for in vivo assessment of individual long-term stresses in joints
No full textDistribution of subchondral bone density and cartilage thickness in the human patella
No full textSubchondral bone density (by means of CT osteoabsorptiometry), and cartilage thickness (directly measured on photocopies of frozen sections), were examined in 30 human patellae, with an age range from 47 to 90 y. A surface demonstration of the distribution was prepared, and representative pictures produced by summation with a computer. Subchondral bone-density maxima were found in the proximal part of the lateral facet, and the density pattern interpreted as the expression of the long-term distribution of stress in the joint. It is reasonable to assume that cartilage thickness, of which two-thirds of the maximum values occupy a lateral position, is also dependent on the local stress. The 2 distributions show correlation coefficients > 0.5 in approximately a third of the cases we examined. Displacement of the higher values of cartilage thickness relative to the subchondral density maxima is attributed to incongruence in the medial part of the joint
The Power of Language and Silence: Reinhard Jirgl’s Die Stille
No full textReinhard Jirgl (1953–) is an emphatically German author. He insists that German is “die Sprache in der ich denke, spreche und schreibe,”¹ and the award of several prestigious prizes (including the Büchner Prize in 2010) has confirmed his place in the German literary tradition. Yet Jirgl uses the German language in consistently and characteristically iconoclastic ways to challenge the authority of historical, political, and institutional discourse. Precisely because his work went against the ideological prescriptions of the East German state, it remained unpublished in the GDR, where Jirgl lived and worked. Since unification he has become a prolific author,..
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