OBJECTIVE To describe the status of dental caries in a sample of Iranian adolescents aged 14 to 18 years in Qazvin, and to identify caries-related factors affecting this group. STUDY DESIGN Qazvin was divided into three zones according to socio-economic status. The sampling procedure used was a stratified cluster sampling technique; incorporating 3 stratified zones, for each of which a cluste...

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BACKGROUND Sleep problems are one of the main health issues raised by families. Therefore, we aimed to evaluate the sleep problems of pre-school children in Iran. METHODS Five hundred and seventy-nine children aged 3-6 years were randomly recruited from 15 kindergartens in the city of Qazvin in Iran. The Iranian version of BEARS (Bedtime problems, Excessive daytime sleepiness, Awakenings duri...

Charcoal fragments from five historic campsite locations in the Galápagos Islands were identified and radiocarbon dated to investigate postulated early human presence in the archipelago, historic fuel wood collection patterns and the resultant impact on native vegetation. A variety of taxa and fuel types were revealed to be present in the charcoal assemblages, indicating geographically driven r...

The scientific heritage of M. R. G. Conzen, who is considered one of the most outstanding historical geographers and urban morphologists in the world, has made a huge impact on the contemporary urban historic morphology. Nowadays it would be very hard to imagine this scientific discipline without his achievements. He created a new point of view on the city, first within the Anglo-Saxon, and aft...

This paper describes and evaluates the background, methodology and successful application of a historic landscape characterisation project undertaken between 1999 and 2000 in Lancashire (NW England). It begins with a description of the need and context for the project, from the perspective of English Heritage as a part of a national programme, from the viewpoint of Lancashire County Council who...

The genetic status of wolves in the western Great Lakes region has received increased attention following the decision to remove them from protection under the US Endangered Species Act. A recent study of mitochondrial DNA has suggested that the recovered wolf population is not genetically representative of the historic population. We present microsatellite genotype data on three historic sampl...

Three dimensional building models have become important during the past years for visualization of touristic or historic objects. Detailed facade models are essential for realistic impressions on a terrestial observer. Such models require both a geometric component that describes the shape of the building or parts of it as well as a texture component that provides color information and depicts ...