The layered cortex of the cerebellum is folded along the anterior-posterior axis into lobules separated by fissures, allowing the large number of cells needed for advanced cerebellar functions to be packed into a small volume. During development, the cerebellum begins as a smooth ovoid structure with two progenitor zones, the ventricular zone and upper rhombic lip, which give rise to distinct c...

Pulmonary fissure segmentation in computed tomography (CT) images can be treated as important ancillary information the diagnosis and treatment of pulmonary diseases, yet it poses a nontrivial uncertainty for task due to complex structures such indistinguishable vessels, blurring fissures unpredictable pathological deformation. To address these challenges, useful approach based on an oriented d...

Artificial fissures were inserted in 3 subjects for 1-21 days. At a salivary concentration of lo3 colony-forming units (CFU) Strep. mutans@, fissures were colonized by this organism. The proportional distribution of Strep. mutans increased with time and comprised up to 6 per cent of the total number of organisms in the fissure at day 21. The total number of organisms in the fissure did not incr...

Workers involved in hydraulic fracking processes are exposed to various types of chemicals and dusts in their workplaces, such as proppants, which hold open the fissures created in the fracking process. Recently, ceramic proppants have been developed that may be less hazardous to workers than traditional proppants. Pulmonary function testing of workers producing ceramic proppant was used to ass...