Polinesia. Hidrografía. ca. 1930

Meridiano de origen: Greenwich. - Relieve representado por tintas hipsométricas. - Márgenes graduados. - Dibujados meridianos y paralelos formando una cuadrículaSegún DNB (Deutsche National Bibliothek), 9/12/2009 se editaron en Gotha en torno a 193

MR imaging in sports-related glenohumeral instability

Sports-related shoulder pain and injuries represent a common problem. In this context, glenohumeral instability is currently believed to play a central role either as a recognized or as an unrecognized condition. Shoulder instabilities can roughly be divided into traumatic, atraumatic, and microtraumatic glenohumeral instabilities. In athletes, atraumatic and microtraumatic instabilities can lead to secondary impingement syndromes and chronic damage to intraarticular structures. Magnetic resonance (MR) arthrography is superior to conventional MR imaging in the diagnosis of labro-ligamentous injuries, intrinsic impingement, and SLAP (superior labral anteroposterior) lesions, and thus represents the most informative imaging modality in the overall assessment of glenohumeral instability. This article reviews the imaging criteria for the detection and classification of instability-related injuries in athletes with special emphasis on the influence of MR findings on therapeutic decisions

Libanon zwischen den Fronten – Wie kann der Friede in der Region gewonnen werden? Diskussion mit Volker Perthes und Rami G. Khouri

Textdokumentation zur Veranstaltung der Osnabrücker Friedensgespräche am 21. Juni 200

Recycling glass fibre-reinforced plastics in the automotive sector

The automotive sector is facing the challenge to become more resource-efficient in the manufacture of cars and theircomponents. One approach is to increase the share of recycled materials. This paper presents the results of a case study for the automotive sector of the EU-funded Zerowin project. A safety-relevant component of the brakingsystem was selected for manufacture using a mechanically recycled composite plastic material (polyethyleneterephthalate reinforced with short glass fibres). The case study demonstrated the interdependencies between material and component specification, component design, material properties and the production process: using recycled glass-fibre-reinforced plastics for a safety-relevant component is not just an issue of input substitution, it is an interplay of technological (product development, production process modification, recycling process), organisational (security of supply, network infrastructure) and economic (material cost savings versus adjustment costs, planning horizons) factors resulting from the input substitution of primary material and changes of material properties. An industrial network was established and the case study’s findings were transferred to serial mass production. Industrial networks are seen as an appropriate tool for securing the supply and quality of recyclates from traceable sources

Unravelling the enigma of Perthes disease

Perthes disease is an idiopathic avascular necrosis of a juvenile hip. Although 2010 marked a century since it was first described, the aetiology remains unknown. It is suggested that adverse socioeconomic circumstances may be a key precipitant. This work describes recent studies that explore the disease epidemiology. Descriptive studies include a case register from Merseyside, hospital discharge data from Scotland, analysis of the world's largest community disease register (General Practice Research Database [GPRD]) and a systematic review of incidence. Analytical studies include a nested case-controlled study in the GPRD and a hospital case-controlled study. The studies demonstrated a striking north-south divide in the UK incidence of Perthes disease, similar to that seen in many adult diseases. There was a sustained fall in disease frequency in all studies, with a narrowing of the north-south divide. There was a strong association with area deprivation, independent of living in an urban environment. Internationally, equatorial regions were unaffected by disease and northern Europe had the highest incidence, which was primarily a function of race although latitude was an independent predictor. Individual characteristics associated with the disease were congenital anomalies of the genitourinary tract and a structural abnormality of arterial calibre. Despite a falling incidence, Perthes disease remains an important cause of child morbidity and exemplifies socioeconomic inequalities. A deprivation-related exposure, acting early in development, appears critical. The aetiological factor in Perthes disease remains elusive but it is likely that unravelling this enigma may unlock additional secrets pertaining to the developmental origins of this and other diseases