370 resultados para 1486


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A la vegueria de Girona, entre 1486 i 1730, es produeix el procés de formació històrica d'un grup social que sorgit de la pagesia s'anirà diferenciant progressivament d'aquesta: els senyors útils i propietaris de masos. Aquest grup social basa el seu poder econòmic i polític en l'acumulació de masos: font de rendes i font de l'estatus social assolit dins la parròquia i la universitat on fixa la seva residència. El seu pes social el manifesta a través dels seus espais de sociabilitat (especialment la parròquia, veritable espai de representació), però també manifesta la seva posició de preeminència, fet que pot abocar als conflictes amb el conjunt de la comunitat. Un conflicte que es planteja en termes de diferenciació dels uns i d'igualtat dels altres. És l'enfrontament entre dues visions de la societat: l'individualisme enfront el comunitarisme.

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Vorbesitzer: Stadtarchiv Frankfurt am Main

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Vorbesitzer: Druda Haemerckers (?)

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Vorbesitzer: Stadtarchiv Frankfurt am Main

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Providing an appropriate education for exceptional students in mathematics is mandated in educational policy in Australasia (Australian Curriculum, Assessment and Reporting Agency (ACARA), 2010; Ministry of Education, 2009, 2011) but a challenge for teachers and schools. ‘Exceptional students’ refer to two distinct populations, namely those who are gifted in mathematics and have the capability to perform very highly compared to age peers and those who experience learning difficulties in mathematics and may underperform (Diezmann, Lowrie, Bicknell, Faragher, & Putt, 2004).

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The technique of femoral cement-in-cement revision is well established, but there are no previous series reporting its use on the acetabular side at the time of revision total hip arthroplasty. We describe the surgical technique and report the outcome of 60 consecutive cement-in-cement revisions of the acetabular component at a mean follow-up of 8.5 years (range 5-12 years). All had a radiologically and clinically well fixed acetabular cement mantle at the time of revision. 29 patients died. No case was lost to follow-up. The 2 most common indications for acetabular revision were recurrent dislocation (77%) and to compliment a femoral revision (20%). There were 2 cases of aseptic cup loosening (3.3%) requiring re-revision. No other hip was clinically or radiologically loose (96.7%) at latest follow-up. One case was re-revised for infection, 4 for recurrent dislocation and 1 for disarticulation of a constrained component. At 5 years, the Kaplan-Meier survival rate was 100% for aseptic loosening and 92.2% (95% CI; 84.8-99.6%) with revision for all causes as the endpoint. These results support the use of the cement-in-cement revision technique in appropriate cases on the acetabular side. Theoretical advantages include preservation of bone stock, reduced operating time, reduced risk of complications and durable fixation.

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