Abstract Background Sinus pericranii (SP) is a rare venous anomaly abnormally connecting the intracranial dural sinuses with the epicranial venous channels.Various authors have attempted to classify this entity to decide management for this potentially life-threatening condition.With approximately 200 cases reported in world literature till date, n
Motorcycle helmets are essential for reducing the risk of head injuries in the event of an impact.However, redken shades eq 07m driftwood during the design of helmets, a compromise must be made between user safety and user comfort.Accordingly, the present study proposes a novel open-face helmet design, in which the helmet features three ventilation
The dynamics of a system of hard spheres enclosed between two parallel plates separated a distance smaller than two particle diameters is described at the level of kinetic theory.The interest focuses on the behavior of the quasi-two-dimensional fluid seen when looking at the system from above or below.In the first part, a collisional model for the
The durability of concrete structures in acidic environments has become an increasingly critical issue, particularly in applications such as wastewater treatment.Sulfuric acid attack is one of the most severe forms of concrete deterioration, with its rate influenced by both acid concentration and surface treatment methods.However, existing research