Abstract: Methods, devices, and systems for controlling a tissue-treatment motion by a surgical instrument are disclosed.

Abstract: A perfusion chamber includes a porous oocyte support structure. A continuously sloped top surface and a receiving well in the support structure entrap the underside of the oocyte, thereby localizing the cell in a predetermined fixed position within the reach of dedicated voltage-clamp microelectrodes. A test solution is delivered continuously at the top of the chamber, above the oocyte, and withdrawn from the bottom of the chamber, below the oocyte. The porosity of the support material enables the continuous perfusion of test solution around the membrane of the oocyte, including its bottom portion that is held firmly in contact with the holding well. The geometry of the holding well is selected such as to ensure the automatic and precise placement of the oocyte by gravity and to optimize the pressure distribution over its membrane, thereby minimizing the probability of rupture or other damage to the cell.

Abstract: 2-Amino-N-(1,2-diphenyl-1-methylethyl) acetamide (remacemide), or a pharmaceutically acceptable salt thereof, for use in the treatment of Parkinson's disease is disclosed.

Abstract: 2-amino-N-(1,2-diphenyl-1-methylethyl) acetamide (remacemide) or a phamaceutically acceptable salt thereof, and L-dopa, are useful in conjunction with one another in the treatment of Parkinson's disease. Pharmaceutical products and formulations comprising these active agents are provided.

Abstract: A device consisting of a monolithic block of material that is used as a housing of an apparatus for determining the density, or changes in density, of small particles, that contains an elongated chamber formed within the block that serves as a cloud chamber, and a trough formed in said block and defining a humidification chamber. The block includes passageways that connect the cloud chamber to the humidification chamber and inlet and exhaust passageways, as well as providing mountings for various valves, such as a humidity valve, by-pass valve, and vacuum valve used in the apparatus.

Abstract: Method and apparatus for sampling the gaseous medium of a zone or area to determine the concentration, or changes in concentration, of submicron particles suspended in the gaseous medium of that area or zone using an elongated cloud chamber. A light source and a phototransistor are disposed in the cloud chamber and spaced apart so as to be electronically responsive to varying levels of light. A microprocessor is connected to a programmable memory EPROM and has pre-programmed data instructions on particle concentration levels. The EPROM sequences the microprocessor to operate the valves that sequentially sample the gaseous medium in the cloud chamber, and opens the exhaust valve in the cloud chamber to create a condition of reduced gas pressure therein. The sample of gaseous medium containing submicron particles then precipitates or condenses a portion of the cloud in the chamber in proportion to the concentration of the particles.