Dieter Kuhn Livres

Linda Marianiello here translates into English for the first time Dieter Kühn’s highly praised and definitive biography of one of Germany’s greatest poets, Gertrud Kolmar. Kolmar carried German-language poetry to new heights, speaking truth in a time when many poets collapsed in the face of increasing Nazi repression. Born Gertrud Käthe Chodziesner in Berlin in 1894, she completed her first collection, Poems, in 1917. She took her pen name, Kolmar, from the name of the town where her family originated. Kolmar’s third collection of poems appeared in 1938 but soon disappeared in the wake of the overall repression of Jewish authors. At the time, she served as secretary to her father, Ludwig Chodziesner, a prominent lawyer. In 1941, the Nazis compelled her to work in a German armaments factory. Even as a forced laborer, the strength of her poetic voice grew, perhaps reaching its highest level before her deportation to Auschwitz. From gentle nature verses to stirring introspection, these are poems in which we can still find ourselves today. Both she and her father died in Nazi concentration camps, he in 1942, she the following year. The translation of Dieter Kühn’s biography conveys the tragic, yet courageous, life of a great poet to an English-speaking audience.

Just over a thousand years ago, the Song dynasty emerged as the most advanced civilization on earth. Within two centuries, China was home to nearly half of all humankind. This book is an essential introduction to this transformative era.

In one-stage procedures, local agents are released from specialized antibiotic-loaded bone cements, while in two- or multi-stage procedures, local agents are released from corresponding temporary spacers (interim prostheses).

Cementing endoprostheses is one of the most frequently performed orthopedic procedures in the world today. PMMA cements are used to anchor artificial joints. They fill up the free space between the prosthesis and bone and constitute a very important elastic zone. Owing to their optimal rigidity the cement can evenly buffer the forces acting against the bone. Although the bone cement which are currently commercially available are all based on the same chemical substance (methyl methacrylate = MMA), their physical and chemical properties differ. The completely revised second addition of the book “PMMA (Bone) Cements” could not have a better timing. In a contemporary overview about biological, physical and chemical characteristics of PMMA cement, physicians, material developers, pharmacists, microbiologist, and economists should gain a basic understanding of the subject. It should also serve them as a reference book. In particular for future physicians and hospital personnel numerous questions will be addressed which have been posed during trainings, congresses and expert gatherings concerning the use of PMMA cement in the operating theater in a save and competent way. Also for decision makers at the hospital administration a comprehensive platform has been created which can be used as a basis of their assessment.

Methyl methacrylate (MMA) is the basic component of bone cements. To use it, a dough is prepared from the liquid and powder by mixing right before application, which is normally done by the operating team. During its working phase the dough is then inserted into the tissue where polymerization is completed. Thus, the final implant polymethyl methacrylate (PMMA) is only created at the implantation site. Besides methyl methacrylate, bone cements sometimes contain other methacrylates, such as butyl methacrylate. To achieve X-ray opacity, radiopacifiers (zirconium dioxide or barium sulfate) are added to the powder. Both the liquid and powder components contain additives (initiator and activator) that launch polymerization and control the set ting when mixed together. Moreover, softener and emulsifiers are some times used. The addition of antibiotics to the powder component in order to prevent or treat infections has become especially important. Commercial bone cements differ in composition and the course of curing. Some are designed for high and others for low viscosity. The way the user handles and applies the cement always crucially influences the quality of the implant. This is why clear and comprehensive information about the cements should be available to show the user how all the relevant factors work It should also be possible together and how they depend on each other.

Describes the latest methods of oncological and hematological diagnostics * All methods are compared for their effectiveness and cost * Each chapter ends with a detailed „how-to-do“