In an effort to ascertain whether a lysosomal enzyme, aryl sulphatase (ArSase), might share the same cell and, or, the same intracellular structure(s) with a histochemical Golgi apparatus marker, thiamine pyrophosphatase (TPPase), in rat pituitary mammotrophs and somatotrophs a technique for a selective demonstration of both enzyme activities within a single specimen has been developed. The tec...

The growth of freshly formed nanoparticles has been investigated. A new analytical expression based on a recently developed exact solution for the condensational growth rate has been derived. Based on the new growth rate, a new approximate but accurate analytical expression for growth time has been derived. The expression includes transition regime effects on growth, molecule size effects on th...

The aerosol chamber AIDA was used as a moderate expansion cloud chamber with cooling rates at the onset of ice nucleation between –1.3 and –3.0 K min−1 to investigate the nucleation and growth of ice crystals in sulphuric acid, ammonium sulphate, and mineral dust aerosols at temperatures between 196 and 224 K. Supercooled sulphuric acid droplets with mean diameters of about 0.2 to 0.3 μm nuclea...

OBJECTIVE To assess the risk of cancer from inhalation of mineral acid mists. METHODS A cohort study and nested case-control study of upper aerodigestive tumours were carried out in men employed since 1950 at two battery plants and two steel works in Britain. The cohort was identified from personnel records and included 2678 men with definite exposure to acid mists (mainly sulphuric acid), 36...

Abstract In recent years, industrial byproducts have been converted into useful and valuable commercial items. Reusing these plays a crucial role to ensure the circular economy thereby safeguard environmental impacts. Ethiopia, Aluminate Sulphate chemical factory disposes of filter-cake waste materials in landfills that high silica content. The is using pure kaolin other raw for production Alum...