4,083 research outputs found

    Von der Wechselwirkung zur Interaktion - Georg Simmel und die Mikrosoziologie heute

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    Bergmann JR. Von der Wechselwirkung zur Interaktion - Georg Simmel und die Mikrosoziologie heute. In: Tyrell H, Rammstedt O, Meyer I, eds. Georg Simmels große "Soziologie" - Eine kritische Sichtung nach hundert Jahren. Sozialtheorie. Bielefeld: transcript; 2011: 125-148

    Knee adduction moment and medial contact force - facts about their correlation during gait

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    The external knee adduction moment is considered a surrogate measure for the medial tibiofemoral contact force and is commonly used to quantify the load reducing effect of orthopedic interventions. However, only limited and controversial data exist about the correlation between adduction moment and medial force. The objective of this study was to examine whether the adduction moment is indeed a strong predictor for the medial force by determining their correlation during gait. Instrumented knee implants with telemetric data transmission were used to measure tibiofemoral contact forces in nine subjects. Gait analyses were performed simultaneously to the joint load measurements. Skeletal kinematics, as well as the ground reaction forces and inertial parameters, were used as inputs in an inverse dynamics approach to calculate the external knee adduction moment. Linear regression analysis was used to analyze the correlation between adduction moment and medial force for the whole stance phase and separately for the early and late stance phase. Whereas only moderate correlations between adduction moment and medial force were observed throughout the whole stance phase (R(2)?=?0.56) and during the late stance phase (R(2)?=?0.51), a high correlation was observed at the early stance phase (R(2)?=?0.76). Furthermore, the adduction moment was highly correlated to the medial force ratio throughout the whole stance phase (R(2)?=?0.75). These results suggest that the adduction moment is a surrogate measure, well-suited to predicting the medial force ratio throughout the whole stance phase or medial force during the early stance phase. However, particularly during the late stance phase, moderate correlations and high inter-individual variations revealed that the predictive value of the adduction moment is limited. Further analyses are necessary to examine whether a combination of other kinematic, kinetic or neuromuscular factors may lead to a more reliable prediction of the force magnitud

    Georg Bergmann.

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    Album depicting Georg Bergamann and fellow school peers, family and friends. Nature landscapes and building exteriors.The following photographs are included in this album: F 18104, F 18105, F 18106, F 18107, F 18108, F 18109, F 18110, F 18111, F 18112, F 18113, F 18114, F 18115, F 18116, F 18117, F 18118, F 18119, F 18120, F 18121, F 18122, F 18123, F 18124, F 18125, F 18126, F 18127, F 18128, F 18129, F 18130, F 18131, F 18132, F 18133, F 18134, F 18135, F 18136, F 18137, F 18138, F 18139, F 18140, F 18141, F 18142, F 18143, F 18144, F 18145, F 18146, F 18147, F 18148, F 18149, F 18150, F 18151, F 18152, F 18153, F 18154, F 18155, F 18156, F 18157, F 18158, F 18159, F 18160, F 18161, F 18162, F 18163, F 18164, F 18165, F 18167, F 18168, F 18169, F 18170, F 18171, F 18172, F 18173, F 18174, F 18175, F 18176, F 18177, F 18178, F 18179, F 18180, F 18181, F 18182, F 18183, F 18184, F 18185, F 18186, F 18187, F 18188, F 18189, F 18190, F 18191, F 18192, F 18193, F 18194, F 18195, F 18196, F 18197, F 18198, F 18199, F 18200, F 18201, F 18202, F 18203, F 18204, F 18205, F 18206, F 18207.Georg Franz Bergmann was born in 1900 in Lissa, Posen. After finishing his legal studies in various German universities and joining various fraternities, he worked as a lawyer in Munich from 1929 to 1933, when he escaped Nazism to Paris. In 1939 he joined the Foreign Legion in North Africa, but was interned by the Vichy government in 1940. After his liberation in 1943 he joined the British Army and emigrated to Australia in 1947, where he changed his name to George Francis Bergman. He eventually joined the civil service in Australia and became highly active in the Australian Jewish Historical Society, publishing many articles for its journal. Bergman died in 1979 at Vila, New Hebrides, Australia.reviewedDigital Imag

    Georg Bergmann university and fraternity album.

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    Handwritten by Georg Bergmann inside album cover:"Collection of Dr. G. F. J. Bergman, J.P., member of 1) Silesia Breslau 2) Thuringia Breslau 3) Bavaria Heidelberg and finally 4) Licaria Muenchen of the K.C. until 1933 Rechtsanwalt in Muenchen"Includes F 6526 - F 6454Georg Franz Bergmann was born in 1900 in Lissa, Posen. After finishing his legal studies in various German universities and joining various fraternities, he worked as a lawyer in Munich from 1929 to 1933, when he escaped Nazism to Paris. In 1939 he joined the Foreign Legion in North Africa, but was interned by the Vichy government in 1940. After his liberation in 1943 he joined the British Army and emigrated to Australia in 1947, where he changed his name to George Francis Bergman. He eventually joined the civil service in Australia and became highly active in the Australian Jewish Historical Society, publishing many articles for its journal. Bergman died in 1979 at Vila, New Hebrides, Australia.Digital ImageOrganizations; FraternitiesBergmann, George Francis Jack

    Georg Hermann.

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    The internationally renowned author of numerous novels, essays, and articles, Georg Hermann, was born as Georg Borchardt in Berlin-Friedenau on October 7, 1871, the youngest of six children in a well-established Jewish family. Later in life he used his father’s first name Hermann as his surname when writing. Contrary to the expectations for a young man from a reputable family, Hermann did not pursue the Abitur exam in a Gymnasium (secondary school), but instead received a one-year certificate in 1890, leaving school to become an apprentice salesman at a tie company. From 1896 until 1899 he worked in the Statistical Office of Berlin, at the same time attending literature and art history lectures at the University of Berlin. Afterwards he worked as a freelance writer and art critic.His first book, 'Spielkinder', was published in 1896, but he did not become well-known until 1906, with the publication of 'Jettchen Gebert', followed by its sequel, 'Henriette Jacoby'. These novels told the story of the life of a young woman living in Jewish Berlin during the Biedermeier period of the 1820s and 1830s. Politically active, Georg Hermann was also a member of the Central-Verein deutscher Staatsbürger jüdischen Glaubens.Having become known for his pacifist tendencies through his writing, and because of his Jewish heritage, Georg Hermann and his family fled to Holland shortly after the burning of the Reichstag in 1933. Although the rest of his family was saved from the Nazis after their occupation of Holland in 1943, Georg Hermann was sent to the Dutch concentration camp of Westerbork. On November 16, 1943 he was transported to Auschwitz and either died during transport or shortly after his arrival.Digital ImageRecord added to DigiTool. Aleph record suppressed. J. Palmisano 09/15/2010

    Determination of muscle loading at the hip joint for use in pre-clinical testing

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    The stability of joint endoprostheses depends on the loading conditions to which the implant-bone complex is exposed. Due to a lack of appropriate muscle force data, less complex loading conditions tend to be considered in vitro. The goal of this study was to develop a load profile that better simulates the in vivo loading conditions of a "typical" total hip replacement patient and considers the interdependence of muscle and joint forces. The development of the load profile was based on a computer model of the lower extremities that has been validated against in vivo data. This model was simplified by grouping functionally similar hip muscles. Muscle and joint contact forces were computed for an average data set of up to four patients throughout walking and stair climbing. The calculated hip contact forces were compared to the average of the in vivo measured forces. The final derived load profile included the forces of up to four muscles at the instances of maximum in vivo hip joint loading during both walking and stair climbing. The hip contact forces differed by less than 10% from the peak in vivo value for a "typical" patient. The derived load profile presented here is the first that is based on validated musculoskeletal analyses and seems achievable in an in vitro test set-up. It should therefore form the basis for further standardisation of pre-clinical testing by providing a more realistic approximation of physiological loading conditions
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