A physical-mathematical model has been designed to estimate the emission of dust from surface granular materials exposed wind erosion. The implements Monte Carlo probabilistic approach, which for a given velocity (i.e., shear stress velocity) ascribes probability saltation particle aggregates composing erodible and calculates aerosol based on main laws governing physics wind-blown particles. ar...

Square-planar nickel bis(dithiocarbamate) complexes, [Ni(S2CNR2)2], have been prepared and utilised as single source precursors to nanoparticulate nickel sulfides. While they are stable in the solid-state to around 300 °C, heating in oleylamine at 230 °C, 5 mM solutions afford pure α-NiS, where the outcome is independent of the substituents. DFT calculations show an electronic effect rather tha...

BACKGROUND/PURPOSE Occupational dermatitis among cement workers is a major occupational health concern. The two most important occupational hazards for cement workers are irritant and allergic cement contact dermatitis. The objective of this study was to investigate the severity of occupational cement contact dermatitis and the common allergens among cement workers in Taiwan. METHODS A total ...

Background and aim: The frequency of sensitization to contact allergens varies in different countries because of both genetic and, more importantly, allergen exposure variations. The objective is to determine the frequency of sensitization to contact allergens in Iranian patients with dermatitis.Materials and methods: Four hundreds and one patients with a clinical diagn...

M., Gounelle, M., Russell S. S. Department of Mineral Sciences, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560 USA ([email protected]). Planetary Space Sciences Research Institute, The Open University, Walton Hall, Milton Keynes, Bucks MK7 6AA, UK. 3 Laboratoire d'Étude de la Matière Extraterrestre, Muséum National d'Histoire Naturelle, 57, rue Buffon, 75005 Par...

A series of phenoxyoxazaphospholidine, phenoxyoxazaphosphinane and benzodioxaphosphininamine sulfides and related cyclic organophosphorus compounds based on the lead anti-tubulin herbicides amiprophos methyl and butamifos were synthesised and evaluated for anti-malarial activity. Of these compounds, while none of the phenoxyoxazaphospholidines, phenoxyoxazaphosphinanes or benzodioxaphosphininam...