BACKGROUND Cancer is a significant disease burden in the world. Many studies showed that heavy metals or their compounds had connection with cancer. But the data conflicting about the relationship of manganese (Mn) to cancer are not enough. In this paper, the relationship was discussed between Mn concentrations in drinking water for rural residents and incidence and mortality caused by malignan...

Abstract We examine katabatic flow driven by a non-uniformly cooled slope surface but unaffected Coriolis acceleration. A general formulation is given, valid for non-uniform buoyancy distributions over down-slope length scale $$L\gg \delta _0$$ L ? ? 0</mml:...

In the context of topological insulators, shallow-water model was recently shown to exhibit an anomalous bulk-edge correspondence. For with a boundary, parameter space involves both longitudinal momentum and boundary conditions exhibits peculiar singularity. We resolve anomaly in question by defining new kind edge index as spectral flow around this Crucially, samples whole family conditions, we...

We present a Riemann solver derived by a relaxation technique for classical single-phase shallow flow equations and for a two-phase shallow flow model describing a mixture of solid granular material and fluid. Our primary interest is the numerical approximation of this two-phase solid/fluid model, whose complexity poses numerical difficulties that cannot be efficiently addressed by existing sol...

In recent years a great deal of research efforts in ship hydromechanics have been devoted to practical navigation problems in moving larger ships safely into existing harbours and inland waterways and to ease congestion in existing shipping routes. The starting point of any navigational or design analysis lies in the accurate determination of the hydrodynamic forces generated on the ship hull m...

Gorgonian species show a high morphological variability in relation to the environment in which they live. In coastal areas, parameters such as temperature, light, currents, and food availability vary significantly with depth, potentially affecting morphology of the colonies and the structure of the populations, as well as their connectivity patterns. In tropical seas, the existence of connecti...