نتایج جستجو برای: maz
تعداد نتایج: 175 فیلتر نتایج به سال:
This paper presents a new technique for the design of approximate reasoning-based controllers for dy namic physical systems with interacting goals. In this approach, goals are achieved based on a hier archy defined by a control knowledge base and re main highly interactive during the execution of the control task. The approach has been implemented in a rule-based computer program which is us...
The task of designing an interlingual machine translation system is difficult, first because the designer must have n knowledge of the principles underlying cross~ linguistic distinctions for the languages under consideration, and second because the designer must then be able to incorporate this knowledge effectively into the system. This paper provides a catalog of several types of distinction...
The intracellular location of a cytochrome P-450-dependent monoterpene hydroxylase from the higher plant, Catharanthus roseus, has been investigated. By differential and sucrose density gradient centrifugation, utilizing marker enzymes and electron microscopy, the monooxygenase was demonstrated to be associated with vesicles having a membrane thickness of 40-60 nm. The vesicles could be disting...
The inconvenience of laparoscopic operations lies mainly in the difficulties in mutual understanding between the surgeon and the camera assistant that manoeuvres the laparoscope camera according to the surgeon’s instructions .Another problem arises when the operation had to be performed for many hours.[1] In these cases the camera image tends to become unsteady due to fatigue of the camera assi...
Gastrin stimulates expression of plasminogen activator inhibitor (PAI)-1 in gastric epithelial cells
Plasminogen activator inhibitor (PAI-)1 is associated with cancer progression, fibrosis and thrombosis. It is expressed in the stomach but the mechanisms controlling its expression there, and its biological role, are uncertain. We sought to define the role of gastrin in regulating PAI-1 expression and to determine the relevance for gastrin-stimulated cell migration and invasion. In gastric biop...
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