ILOG JViews Graph Layout: a Java library for highly demanding graph-based applications

We present the Graph Layout module of the ILOG J Views Component Suite, which is a set of pure Java components for building sophisticated interactive commercial graph-based user interfaces.     

Statistics of total knee replacement: partial and total knee replacement, design St. Georg: a review of a 4-year observation

Since 1969, we have used 2 different types of knee prostheses to reconstruct arthritic knees. The surface replacement prosthesis (sledge) is indicated where ligamentous stability is present and angular deformity is not severe. In addition, the sledge prosthesis may be implanted with good results in selected acute comminuted tibial plateau fractures. The total hinged prosthesis of metal design is recommended in knees which are severely deformed, and unstable, and therefore not suitable for the sledge prosthesis. Marked relief of pain was the most significant result in our patients. Residual knee pain was most frequently due to patello-femoral pain and, when severe, this was satisfactorily controlled by performing a patellectomy. Motion was usually maintained at the preoperative range or improved, mainly by reducing or eliminating the knee flexion contracture. In a high percentage, the unicompartmental sledge prosthesis has given excellent results. However, we tend to insert a bi-compartmental sledge prosthesis because experience has shown that even slight damage of the articular surfaces of the opposite side is likely to further deteriorate rapidly. Although a significant number of complications occurred, these have been minimized by further conservative and operative treatment. We anticipate a further reduction in complications based on our initial experience, and prosthetic revisions.     

Thermostabile polymere IV. Aromatische o-cyanopolyamide

High-molecular-weight o-cyanopolyamides have been prepared at —20 °C by polycondensation of dicyano phthalic dichloride with aromatic diamines in tetrahydrofuran/dimethylacetamide. When heated at temperatures of 250 °C in the solid state the o-cyanopolyamides isomerise to give polyiminoimides; in solution the rearrangement takes place at temperatures between 100 and 120 °C. The polymers have been characterised. Flexible films have been cast from solution; parts have been produced by moulding at 350 °C.