Abstract: The object of the invention relates to an objective changing and focussing apparatus (10) for microscopes (100) containing a plurality of objectives (12), and having an optical axis Z, the essence of which is that it contains—a first rail system (16a) having a first guide rail (17a) fixed to the microscope (100) and a first moving member (18a) guided by the first guide rail (17a), wherein the first rail system (16a) is arranged along an axis X perpendicular to the optical axis Z, —a first drive unit (20a) in drive connection with the first rail system (16a), —a plurality of objective interface elements (24), adapted for being connected to the objectives (12), arranged next to one another along the X axis and fixed to the first moving member (18a) movably along the Z axis, —a second rail system (16b) having a second guide rail (17b) fixed to the microscope (100) and a second moving member (18b) guided by the second guide rail (17b), wherein the second rail system (16b) is arranged parallel to the optical axis

Abstract: A microscope stage is movably mounted to a base and is movable relative to the base by two separate drive units on separate rail systems situated at an angle relative to one another. The drive units are mechanically isolated from one another and one of the drive units uses a belt drive.

Abstract: The object of the invention relates to an objective changing and focussing apparatus (10) for microscopes (100) containing a plurality of objectives (12), and having an optical axis Z, the essence of which is that it contains—a first rail system (16a) having a first guide rail (17a) fixed to the microscope (100) and a first moving member (18a) guided by the first guide rail (17a), wherein the first rail system (16a) is arranged along an axis X perpendicular to the optical axis Z,—a first drive unit (20a) in drive connection with the first rail system (16a),—a plurality of objective interface elements (24), adapted for being connected to the objectives (12), arranged next to one another along the X axis and fixed to the first moving member (18a) movably along the Z axis,—a second rail system (16b) having a second guide rail (17b) fixed to the microscope (100) and a second moving member (18b) guided by the second guide rail (17b), wherein the second rail system (16b) is arranged parallel to the optical axis Z,

Abstract: The invention relates to a device (10) for moving a microscope (100) stage, which device (10) has a first and second rail system (16a, 16b), and has a microscope stage (12) that may be moveably fixed to a first base (14) with the first and second rail systems (16a, 16b), furthermore, it contains: —a first drive unit (20a) for moving the stage (12) along the first rail system (16a), connected to the stage (12) via a first drive connection, and —a second drive unit (20b) for moving the stage (12) along a second rail system (16b) positioned at an angle to the first rail system (16a), connected to the stage (12) via a second drive connection, the essence of which is that the first drive unit (20a) is arranged on a second base (15) that is mechanically isolated from the first base (14), and the first drive connection is provided as a belt drive.

Abstract: The invention relates to a method for modifying the conformation of plant proteins for increasing their biological utilization, which comprises treating said plant protein with gaseous hydrogen chloride to adjust its pH to a value between 1.6 and 2.4, as measured in a 20% by weight aqueous suspension, for a period sufficient to increase the digestibility of said protein without bringing the protein into solution or suspension, and thereafter bringing the pH of said protein to a value between 4 and 7 with an alkalizing agent, wherein the moisture content of said protein is increased with the alkalizing agent at most to 50% by weight.