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Studies of centenarians as a model of successful ageing may help identify various environmental, social, psychological, and genetic factors supporting longevity. The scientific aims of the programme were to assess health status and environmental determinants of ageing of Polish centenarians, and to collect biological material for studying selected aspects of longevity, including genetic factors. The social aim of the project was to bring public attention to ageing of the population, as well as living conditions of elderly individuals. The intention of the authors of this paper is to present aims, scope, methods and preliminary results of the Polish Centenarians Programme, as well as to provide potential new partners for studying various aspects of longevity and ageing with the information about available materials collected during the programme. In this study, 346 subjects aged 100+ were visited, biological material was collected from 285 subjects, and 153 lymphocyte cell lines were immortalized.

The paper presents the preliminary results of the research aiming at the development of the Diagnostic Stroke Ontology. The described machine processable knowledge representation was designed for the applications supporting stroke diagnosis and management of stroke patients. Applied methodology of ontology development was methontology with subsequent activities: specifications of requirements, domain knowledge acquisition, conceptualization and formalization of conceptual model followed by evaluation. Presented in the article structure and content of Stroke Diagnostic Ontology (DStrokeOnto ontology) include salient ontology modules, classes in modules, relations between modules, main classes definition and details of ontology metrics and expressivity. The DStrokeOnto ontology is syntactically correct, model completeness and logical consistency was verified by two experts in neurology and brain anatomy (excluding sub-module of Imaging Procedure For Stroke - in progress) as good quality interface to CT-based system of computeraided stroke diagnosis.

Erratum to ‘‘Polish Centenarians Programme – Multidisciplinary studies of successful ageing: Aims, methods, and preliminary results [Exp. Gerontol. 43 (2008) 238–244]” Malgorzata Mossakowska *, Maria Barcikowska , Katarzyna Broczek , Tomasz Grodzicki , Alicja Klich-Raczka , Malgorzata Kupisz-Urbanska , Teresa Podsiadly-Marczykowska , Ewa Sikora , Aleksandra Szybinska , Katarzyna Wieczorowska-Tobis , Jolanta Zyczkowska , Jacek Kuznicki a