Abstract: Method for concreting railway slab track which envisages placing two parallel rails one at each side and at the exterior of the track under construction, supported and fixed on the platforms, semi-platforms or lateral spaces, on which at least one autonomous device or hopper moves, capable of loading concrete and/or pouring it in a controlled manner, distributing it uniformly along the track under construction to form the concrete slab of the slab track; transporting the concrete from a supply area to the pouring area on the track under construction is also carried out by means of devices or hoppers which move by rolling on the auxiliary rails, which are either the same devices that carry out the pouring, or are auxiliary transport devices or hoppers.

Abstract: Electric spindle with axial force control intended for friction welding and other uses, of the type used industrially for the automated welding of metal plates or metal elements, characterized in that it incorporates, inside the body of the electric spindle, a force sensor, associated with the tool by means of an internal shaft that can move axially and which, via an electromechanical actuator, allows the real-time local adjustment of the height of the tool above the material to be welded, such as to maintain a constant, controlled force during the welding and/or machining processes. The main advantage of the invention that is presented is that the height is corrected according to the force, automatically in the electric spindle itself, with much greater precision and speed, thereby providing more uniform welding results without irregularities.

Abstract: The chimeric empty capsids of the infectious bursal disease virus (IBDV) are constituted by assembly of (i) IBDV pVP2 proteins and (ii) fusion proteins comprising a region A constituted by the IBDV VP3 protein bound to a region B constituted by a heterologous polypeptide comprising a polypeptide of interest, such as a polypeptide useful in vaccination, therapy or diagnosis.

Abstract: A device that includes a bearing surface to collocate tile laggings and or tiles combined with other laggings, this bearing surface being adhered to the wall or surface to be covered, the bearing surface having long shaped elements with an exterior in the shape of a channel, serving as aligning rods for the tiles, a level band, perforations for the fixing to the wall, areas of antisliding material so as to avoid the movement of the tiles, lines for cutting to adapt the bearing surface to the surface that is to be covered, separators of tiles, fitting lid elements on the aligning rods, and at least one channel for wiring and supplements for the leveling of the bearing surface.