An analysis of the climate parametrization scheme adopted by conventional forest gap models revealed that most models assume a constant climate and are difficult to calibrate consistently. Tree growth showed unrealistically sensitive threshold effects along ecological gradients of temperature and precipitation. A new parametrization was compared with its predecessors in terms of the model's cap...

BACKGROUND Pay for performance (P4P) schemes have become increasingly popular innovations in primary care and have generated questions about their effect on improving quality of care. AIMS To provide a brief outline of the international evidence on the relationship between P4P schemes and quality improvement. METHOD We conducted a literature search using relevant databases and reference lis...

Background: Reviews of the epidemiology of Huntington’s disease (HD) suggest that its worldwide prevalence varies widely. This review was undertaken to confirm these observations, to assess the extent to which differences in caseascertainment and/or diagnosis might be responsible, and to investigate whether the prevalence pattern has changed over the past 50 years. Methods: Eighty two relevant ...

Background: Reviews of the epidemiology of Huntington’s disease (HD) suggest that its worldwide prevalence varies widely. This review was undertaken to confirm these observations, to assess the extent to which differences in caseascertainment and/or diagnosis might be responsible, and to investigate whether the prevalence pattern has changed over the past 50 years. Methods: Eighty two relevant ...

Les collections topologiques permettent de considérer uniformément de nombreuses structures de données dans un langage de programmation et sont manipulées par des fonctions définies par filtrage appelées des transformations. Nous présentons dans cet article deux systèmes de types pour des langages intégrant les collections topologiques et les transformations. Le premier est un système à typage ...

RÉSUMÉ. Les réseaux bayésiens sont des outils privilégiés pour les problèmes de diagnostic. Nous dressons dans cet article un panorama des algorithmes utilisés classiquement pour la mise en œuvre des réseaux bayésiens dans le cadre du diagnostic, et plus particulièrement du diagnostic médical. Pour cela, nous passons en revue un certain nombre de questions méthodologiques concernant le choix de...

Objectives: Methamphetamine (MA) dependence is a new health problem among Iranian female methadone patients. In recent years, the Matrix Model (a sixteen-week psychosocial treatment) has been provided for treating MA dependence. However, the problems associated with this treatment in methadone services are not clear. Methods: A qualitative study was conducted to explore the problems associated...

BACKGROUND AND AIM: Oral and maxillofacial lesions vary in different geographic regions based on their clinical features. Until now, few investigations have studied these lesions in children and adolescents in Iran. The aim of this research was to study the clinicopathological manifestations of biopsied oral and maxillofacial lesions among children and adolescents in the south of Iran.METHODS: ...