BACKGROUND Chest radiography (CXR) is inferior to Thin-section computed tomography in the detection of asbestos related interstitial and pleural abnormalities. It remains unclear, however, whether these limitations are large enough to impair CXR´s ability in detecting the expected reduction in the frequency of these asbestos-related abnormalities (ARA) as exposure decreases. METHODS Clinical ...

Abstract This article is an analysis of the influence blacksmiths, and saw grain millers on development Puritan communities in Massachusetts Bay Colony between 1630 1660. During this period these artisans played a significant role defining physical form rural town its economic development, without intent social cultural climate where they were often disliked distrusted. focuses impacts manufact...

BACKGROUND This study evaluated mortality among workers at a talc mining and milling facility. METHODS Subjects were white men actively employed between 1948 and 1989 and known to have been alive in or after 1950. Analyses assessed cancer mortality during the period 1950-89 (809 subjects) and non-cancer mortality during 1960-89 (782 subjects). RESULTS Comparisons with regional general popul...

Airborne emissions from hot asphalt contain mixtures of polycyclic aromatic hydrocarbons (PAHs), including several carcinogens. We investigated urinary biomarkers of three PAHs, namely naphthalene (Nap), phenanthrene (Phe), and pyrene (Pyr) in 20 road-paving workers exposed to hot asphalt and in 6 road milling workers who were not using hot asphalt (reference group). Our analysis included basel...

Rice varietal adoption was assessed using randomly selected global positioning system (GPS) coordinates in Chitwan district, Nepal. At pre-determined sampling points along the transects, which researchers located GPS, data were collected on land use and name of any rice variety grown. These then triangulated through focus group discussions (FGD) for each transect. The first two surveys done 200...

Greater competitiveness and deregulation in agribusiness and the food industry require new forms of co-ordination between farmers and their clients to increase the efficiency and profitability of the supply chain. Various co-ordination processes are used by processing firms to control the quantity and quality of their raw material. In the sugar industry, millers plan their cane supply to ensure...

Pollen plants from anther culture in rice breeding allows selection of fine strains in early generations. Exploitation of anther culture technique in research is limited due to very low regeneration frequency of indica cultivars and the transfer of anther culture traits from japonica to indica varieties is important in improving these rice varieties. In this study the optimization of media requ...