The current century has witnessed infections of pandemic proportions caused by Coronaviruses (CoV) including severe acute respiratory syndrome-related CoV (SARS-CoV), Middle East respiratory syndrome-related CoV (MERS-CoV) and the recently identified SARS-CoV2.Significantly, the SARS-CoV2 outbreak, declared a pandemic in early 2020, has wreaked dev
The dynamic performance of three slab ballastless tracks in the China Railway Track System (CRTS), which is supported by a simply supported box girder under various train loads, were comprehensively investigated with refined rigid-flexible coupled models.A refined rigid-flexible coupled model of vehicle-multi layer track-bridge system was developed
The review covers the main definitions and criteria for endemicity and enzooticity relating to natural focal zoonotic infections and, in particular, to leptospirosis.Since leptospirosis is widespread, and almost all territories are endemic for utvara hellkite price this disease, it is proposed to allocate a high, medium and low degree of endemicity