Hello Glasair. Keep me posted. I can't give up system mechanic. My computer is too old and I like the tune up features. My MB license is about to expire, and I'll probably just let it go. I'm also following at PC Mag. The general manager for SM is on that forum. ,2817,2371043,00.asp#disqus_thread

Under general supervision, performs skilled journey-level mechanical, electronic and electrical work in connection with the maintenance and repair of electrically powered transit equipment and vehicles (including, but not limited to: trolley coaches, street cars, light rail vehicles and cable cars).Performs related duties as required.

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1. Diagnoses, replaces and/or repairs worn or defective electrical, electronic, pneumatic, mechanical, HVAC, or hydraulic equipment/parts on Muni Railway equipment, including, but not limited to: street cars, trolley coaches, cable cars and light rail vehicles by replacing affected parts through the process of disconnecting wires and air lines, unbolting worn or defective parts, and rebolting and reconnecting wires and air lines to new parts.

Four (4) years of verifiable full-time experience as a journey-level mechanic performing troubleshooting, repairs and/or maintenance of electromechanical/ electrical/ electronic and mechanical systems similar to those found in SFMTA light rail and electric trolley vehicles such as, control circuitry, AC/DC motors, generators, inverters, and air conditioning equipment.

i. Graduation from a trade school or technical school approved by the states Department of Education with a major course of study in electromechanical, electrical or electronic technology, or a closely related field, may substitute for two years of the required experience.

ii. Possession of an A.A. or A.S. degree, or higher degree, from an accredited college or university in electromechanical, electrical or electronic technology, or a closely related field, may substitute for two years of the required experience.

Nature of work: Some positions require considerable physical effort to perform mechanical tasks on top of, under, inside and around large transit vehicles and confined, small areas. May require exposure to high voltage wires and other potentially hazardous working conditions; and work in adverse weather or work conditions such as rain, cold, dirt, dust and/or in traffic. Some positions require normal color vision. Incumbents may be assigned to any shift including night, weekends and holidays.

The forced oscillation technique (FOT) is a powerful, integrative and translational tool permitting the experimental assessment of lung function in mice in a comprehensive, detailed, precise and reproducible manner. It provides measurements of respiratory system mechanics through the analysis of pressure and volume signals acquired in reaction to predefined, small amplitude, oscillatory airflow waveforms, which are typically applied at the subject's airway opening. The present protocol details the steps required to adequately execute forced oscillation measurements in mice using a computer-controlled piston ventilator (flexiVent; SCIREQ Inc, Montreal, Qc, Canada). The description is divided into four parts: preparatory steps, mechanical ventilation, lung function measurements, and data analysis. It also includes details of how to assess airway responsiveness to inhaled methacholine in anesthetized mice, a common application of this technique which also extends to other outcomes and various lung pathologies. Measurements obtained in nave mice as well as from an oxidative-stress driven model of airway damage are presented to illustrate how this tool can contribute to a better characterization and understanding of studied physiological changes or disease models as well as to applications in new research areas.

Based on the hypothesis that mucous accumulation increases airway resistance, we measured passive respiratory system compliance (Crs), resistance (Rrs) and the product of these mechanical variables, time constant (Trs), just prior to and immediately following suctioning in 11 studies on 8 premature infants. All infants were intubated (3 mmlD endotracheal tube (ETT)) and artificially ventilated with peak pressures ranging from 12-27 cmH2O and with 3-4 cmH2O end expiratory pressure. Ventilator rates ranged from 5-40 per minute. Inspired oxygen concentration varied from 0.21 to 0.35. A valve was inserted between the ventilator circuit and the ETT connector of the infant who continued to receive the required ventilation. Crs, Rrs, and Trs were obtained by occluding the airway at end-inspiration, measuring occlusion pressure and the flow and volume of the subsequent passive expiration. Rrs and Trs fell significantly (p 0852c4b9a8

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