INTRODUCTION An industrial hygiene database has been constructed for the exposure assessment in a study of cancer risk among asphalt workers. AIM To create models of bitumen and polycyclic aromatic hydrocarbons (PAH) exposure intensity among paving workers. METHODS Individual exposure measurements from pavers (N = 1581) were collected from 8 countries. Correlation patterns between exposure ...

The self-healing capability of bituminous materials has been known for many years. Researches were mostly focused on the self healing behaviour during load repetitions. The tests are either time consuming and/or complex. In this paper, a simple self healing test procedure is presented combining the fracture-healing-re-fracture test (FHR) with morphological observations. A fast displacement spee...

OBJECTIVE To determine the ability of mastic monotherapy to eradicate Helicobacter pylori infection from mice. MATERIALS AND METHODS The susceptibility of H. pylori SS1 to mastic was assessed by broth dilution determination of the MIC and MBC. Mice were inoculated intragastrically with either a suspension of H. pylori SS1 (n = 70) or brain-heart infusion broth alone (n = 10). Mice were given ...