Abstract: A system for the creation of commands and control signals for a complete operating cycle of a robot manipulator device of a sheet metal bending installation by simulating the operating environment, in which various parts of the sheet metal bending installation are presented to the user on a video display in a simplified form and on a reduced scale. The video display and a keyboard are connected to a central processor unit and permit the creation of a complete sequence of signals usable for controlling the operation of the bending installation, and permits the presentation of the simulation of the movement of the parts of the installation on the video.

Abstract: To perform a simple and rapid preparation of control program, the control device for a robot manipulator for a sheet metal bending installation is provided with a first key for inputting a command signal for actuating a first actuator that is adapted to move a movable element of the metal sheet bending installation through a constant distance or amount, and a second key for inputting a command signal for actuating a second actuator that is adapted to move another movable element of the metal sheet bending installation through a changeable distance or amount.

Abstract: Tripeptides having general formula II Glu-Lys-Arg in which: Glu is a glutamic acid residue, Lys is a lysine residue and Arg is an arginine residue are described. The aminoacids composing the tripeptides of the invention may be either of the natural, L-series or of the D-series or a racemic mixture of the two said series, but the aminoacids are preferably selected from the L-forms even though D- or DL aminoacids may also be considered. The invention refers also to the process for the preparation of said peptides as well as to their use as immunostimulant agents.

Abstract: The peptides of formula IA--x--Lys--y--B Iin which:A is H, a tripeptide of formula Arg-Ala-Arg or an hexapeptide of formula Glu-Lys-Arg-Arg-Ala-Arg x and y, different one from the other, are an arginine (Arg) or a glutamic acid (Glu) residue;B is OH or a tripeptide Arg-Ala-Arg with the proviso that when A is hydrogen and x is ARg, B is different from OH comprising the steps of:a) binding the Boc-protected carboxyterminal aminoacid to a suitable resin;b) reacting the other Boc-protected aminoacids with the resin-bound carboxyterminal aminoacid in the desired sequence;c) removing the protecting groups and releasing the so obtained peptides from the resin,have valuable pharmacological properties as immunostimulating agents.

Abstract: The present invention is referred to tripeptides having the following general formula:X-Gly-Ywhere X=L-Arg or D-Arg and Y=L-Asp or D-Asp.These tripeptides, endowed with both immunostimulant and antimetastatic properties, are active not only after parenteral administration, but also after oral treatment.The invention is also related to the procedure for the preparation of said compounds.

Abstract: Thymolymphotropin, a thymus derivative able to stimulate the differentiation and the function of T-lymphycytes, is active after oral administration and can be prepared through a process of partial acid lysis of mammal thymuses. Pharmaceutical compositions containing thymolymphotropin are utilized in the treatment of primary and secondary immunodeficiencies.

Abstract: The tripeptide Arg-Lys-Glu, synthetized by conventional solution methods, and its salts display immunostimulating activity both on maturation of immature T cells and on T cell function.