Richard Ribeiro

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Central giant-cell granulomas are benign, but occasionally aggressive, lesions that traditionally have been treated surgically. 21 cases of central giant-cell granuloma of the jaw were treated with intralesional injection of corticosteroids. The treatment protocol adopted was intralesional injection of 20mg/ml triamcinolone hexacetonide diluted in an(More)
This paper examines the possibility of discovering 'hidden' (potential) Communities of Practice (CoPs) inside electronic networks, and then using this knowledge to nurture them into a fully developed Virtual Community of Practice (VCoP). Starting from the standpoint of the need to manage knowledge, it discusses several questions related to this subject: the(More)
BACKGROUND/AIMS The urinary concentration of the monocyte chemoattractant protein-1 (uMCP-1) chemokine is increased in several proteinuric and/or inflammatory renal diseases. In the present study, we evaluated the association between uMCP-1 and renal function, proteinuria, glomerular and interstitial macrophage infiltration, and renal fibrosis in patients(More)
Central giant cell lesion is an uncommon benign jaw lesion, with uncertain aetiology, and variable clinical behaviour. Studies of molecular markers may help to understand the nature and behaviour of this lesion, and eventually may represent a target for pharmacological approaches to treatment. The aim of this study was to analyse the expression of(More)
PURPOSE To correlate key inflammatory and pro-angiogenic cytokines from undiluted vitreous fluid of treatment-naïve patients with central retinal vein occlusion (CRVO) with SD-OCT parameters. METHODS Thirty-five patients (age 71.1 years, 24 phakic, 30 non-ischaemic) underwent intravitreal combination therapy, including single-site 23-gauge core(More)
This paper puts forwards a new way to view how Communities of Practice (CoPs) form in environments that make heavy use of information systems. It uses a concept from Physics to suggest a new type of CoP that can exist in workplaces. In order to do that, the paper uses a simplified taxonomy for CoPs to outline the 'Quantum-CoPs'. These Communities are(More)
Although Communities of Practice have become a core concept in understanding how knowledge is managed within organizations, there have been few studies of the praxis of formation of Communities of Practice. In this article, we report on a Grounded Theory study of the members of a previously identified Community of Practice within the UK Higher Education(More)