Abstract: A ventilator is disclosed herein. The ventilator may include a blower, and a controller operatively connected to the blower. The controller is configured to automatically identify an optimal target inspiratory and expiratory pressure level for the treatment of a sleep related breathing disorder. The controller is also configured to regulate the operation of the blower in a manner adapted to deliver the optimal target inspiratory and expiratory pressure level.

Abstract: The present invention relates to a machine for digging a trench and making a wall in said trench, the machine being suitable for advancing along a path and having rear and front portions relative to the direction of advance of the machine, together with excavator means disposed in the front portion of the machine and defining a substantially vertical cutting front; wall-forming means situated in the rear portion of the machine; and propulsion means suitable for causing the machine to advance along said path. The machine also has a central portion, controllable brake means for slowing advance or blocking at least one portion of the machine, and controllable connection and disconnection means for connecting and disconnecting the central portion respectively with the front and rear portions of the machine, thereby enabling the type of excavator means and the type of wall-forming means to be changed.

Abstract: The invention relates to a soil consolidation process using a combination of calcifying bacteria and denitrifying bacteria. The invention further relates to a composition for carrying out said process.

Abstract: The present invention relates to a machine for digging a trench and making a wall in said trench, the machine being suitable for advancing along a path and having rear and front portions relative to the direction of advance of the machine, together with excavator means disposed in the front portion of the machine and defining a substantially vertical cutting front; wall-forming means situated in the rear portion of the machine; and propulsion means suitable for causing the machine to advance along said path. The machine also has a central portion, controllable brake means for slowing advance or blocking at least one portion of the machine, and controllable connection and disconnection means for connecting and disconnecting the central portion respectively with the front and rear portions of the machine, thereby enabling the type of excavator means and the type of wall-forming means to be changed.