A cross sectional radiological survey of workers exposed to pottery dust during the manufacture of wall tiles and bathroom fittings was conducted in a South African factory. Roughly one third of workers with 15 or more years of service in high dust sections of the factory had pneumoconiosis. Previously undiagnosed advanced cases, including two with progressive massive fibrosis, were working in ...

Cultural change can be quantified by temporal changes in frequency of different cultural artefacts and it is a central question to identify what underlying cultural transmission processes could have caused the observed frequency changes. Observed changes, however, often describe the dynamics in samples of the population of artefacts, whereas transmission processes act on the whole population. H...

In an attempt to assess whether silica induces lung cancer, a nested case-control study of 316 male lung cancer cases and 1352 controls was carried out among pottery workers and tungsten, copper-iron, and tin miners from five provinces in south central China. Exposure to dust and silica for each study subject was evaluated quantitatively by cumulative exposure measures based on historical indus...

relying upon the theories concerned with the cultural evolution of anthropology and archaeology, and providing a brief review of the related literature, the present article conducts a careful examination of the evolutionary trends in pottery of the layers from the prehistoric periods of qal’eh kh?n. testing several variables affecting pottery, the article proposes that while cultural evolutioni...

We describe the design and evaluation of a geometric interaction technique for bare-hand mid-air virtual pottery. We model the shaping of a pot as a gradual and progressive convergence of the potprofile to the shape of the user’s hand represented as a point-cloud (PCL). Our pottery-inspired application served as a platform for systematically revealing how users use their hands to express the in...

We describe the iterative design and evaluation of a geometric interaction technique for bare-hand mid-air virtual pottery. We model the shaping of a pot as a gradual and progressive convergence of the pot-profile to the shape of the user’s hand represented as a pointcloud (PCL). Our pottery-inspired application served as a platform for systematically revealing how users use their hands to expr...

A short diagnosis and a more detailed diagnosis of the genus Laelaspis are presented. Until now, a total of 40 described species belong to the genus, including a new species described here, and excluding the four following species previously described as Laelaspis or Hypoaspis (Laelaspis): L. badrii Nasr & Nawar [considered as Cosmolaelaps badrii comb. nov.], L. zuluensis Trägårdh, Hypoaspis (L...

The pottery of Nineveh 5 is considered one the most beautiful ‎pottery in Mesopotamia, ‎period dating back to beginning ‎the third millennium B.C and contemporary period ‎of Jamdet ‎Nasr. This type was discovered for first time ‎fifth layer city Nineveh, a different ‎ manner from ‎previous periods. north Mesopotamia country ‎rich ‎this kind pottery, which these sites. ‎The Tell Lashkar, ‎is loc...

The classification of pottery as found in many archaeological sites around the world is a time consuming and often tedious task which can take months and even years for a single site. Many of the seemingly less interesting artifacts simply disappear into storage unclassified. Automating the classification of pottery would hence be a welcome help for many archaeologists, freeing them from routin...