block ramps are hydraulic structures which are commonly used in river restoration projects. especially in the last few decades, the use of this type of structures have become more and more popular. they furnish a correct balance between the hydraulic functioning and the environmental care, as they minimize the impact on the environment in which they are located. in addition, they can be conside...

We define erosion as a partial demineralisation of enamel or dentine by intrinsic or extrinsic acids and erosive tooth wear as the accelerated loss of dental hard tissue through the combined effect of erosion and mechanical wear (abrasion and attrition) on the tooth surface. Most experts believe that during the last decade there has been a significant increase in the prevalence and severity of ...

The erosive processes that take place across the globe are cause and intensifier of several environmental problems. These can occur naturally - shaping terrestrial structure as well in an anthropogenic way through harmful interventions to environment. There methodologies predict intensity soil loss a region, providing data local problems regarding occurrence erosion. In this study, three differ...

Sognefjord is formed by a combination of exploitation of rock structure and subaerial and subglacial processes. The fjord system follows zones of rock-structural weakness. Above sea level the landforms are due mainly to subaerial processes, and somewhat surprisingly not to glacial activity. Removal of erosive products and deepening of the fjord below sea level is due to glacial erosion.

background and aims. oral lichen planus (olp) is an immunologic disorder. a large number of studies have reported that lipid rafts have a key role in receptor signaling of lymphocytes. here, we explore the potential of lipid rafts as targets for the development of a new class of agents to down-modulate immune responses and treat autoimmune diseases. materials and methods. the present cross-sect...

OBJECTIVES To determine whether erosive osteoarthritis shares the same pattern of joint involvement and risk profile as increasing grades of non-erosive hand osteoarthritis. METHODS Participants were from two population-based cohorts, aged ≥50 years, reporting hand symptoms in the previous month. Interphalangeal joints were assessed for erosive osteoarthritis (Verbruggen-Veys erosive or remod...

Unmanned Aerial Systems, or drones, are very helpful tools for managing open-pit mining operations and developing ecological restoration activities. This article presents a method identifying water erosion processes in active quarries by means of drone imagery remote sensing, the absence pre-existing mapping comparison. A Digital Elevation Model (DEM) with spatial resolution (SR) >10 cm an o...

background and aims. oral lichen planus is a relatively common chronic oral mucosal disease of unknown etiology. regarding numerous studies on the immunologic factors involved in the etiology of lichen planus, the present study evaluated the serum interleukin-17 (il-17) level in patients with erosive and non-erosive oral lichen planus. materials and methods. this descriptive analytical study in...