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  • Electronic Resource  (3)
  • 1990-1994  (1)
  • 1985-1989  (2)
  • Creatinine clearance rate  (1)
  • Marine aerosol and gas  (1)
  • aerosol characterization  (1)
  • neurophysiology  (1)
Material
  • Electronic Resource  (3)
Years
  • 1990-1994  (1)
  • 1985-1989  (2)
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  • 1
    ISSN: 1432-2218
    Keywords: Gallstones ; Laparoscopic cholecystectomy ; Blood-gas analysis ; Hemodynamics ; Creatinine clearance rate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Respiratory function and hemodynamics were studied during laparoscopic cholecystectomy (LC) under a 10 mmHg pneumoperitoneum (PP) by carbon dioxide insufflation. Blood-gas analysis and measurement of cardiac function by using a Swan-Ganz catheter were performed. Creatinine clearance rate was measured preoperatively and intraoperatively. Compared with values obtained before the institution of PP, blood-gas analysis showed a significant increase in PCO2 (P〈0.01), and a significant decrease in pH (P〈0.01) and base excess (P〈0.05) during PP. With respect to cardiac function, there was no significant change in cardiac output, pulmonary arterial pressure, and pulmonary arterial wedge pressure. Intraoperative creatinine clearance rate (Ccr) was decreased in 29 of 48 cases, increased in 18 cases, and unchanged in 1 case, resulting in no significant difference overall between the values measured preoperatively and intraoperatively. However, in eight individual cases, the Ccr was found to have decreased significantly. Although alterations in respiratory function were observed, LC at 10 mmHg PP did not cause any crucial problems in respiratory or cardiac function. It should be kept in mind, however, that renal blood flow may decrease in some cases even at intraabdominal pressures under 10 mmHg.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1573-0662
    Keywords: Long-range transport of atmospheric species ; Marine aerosol and gas ; western Pacific Ocean ; aerosol characterization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Geosciences
    Notes: Abstract During the winters of 1981 and 1982, measurements were taken on two Japanese islands of the aerosol and gaseous species which had been carried by northwesterly monsoons over the Pacific Ocean. The aerosols were characterized as sea-salt particles; soil particles, and as particles of sulfate, nitrate, organics and elemental carbon. At Chichi-jima island, which is about 800 km away from the main islands of Japan, it was found that the level of the anthropogenic components of the aerosols was considerably higher than their background level. The mean concentrations of the species on the islands are given in tabular forms. According to a survey made on board a ferry boat, the aerosol and gaseous species were fairly uniformly distributed along the southern coast of the main Japanese islands.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Bioelectromagnetics 7 (1986), S. 395-404 
    ISSN: 0197-8462
    Keywords: hair receptors ; afferent impulses ; neurophysiology ; Life and Medical Sciences ; Occupational Health and Environmental Toxicology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Physics
    Notes: There are two possible mechanisms of effects of large electric fields on animals, one caused by the electric field at the body surface and the other caused by the electric current induced inside the body. The purpose of the present experiments was to investigate the former possibility by recording action potentials from afferent fibers innervating various sensory receptors in the cat's hindlimb. Cat hairs were attracted to the upper electrode when exposed to DC electric fields of 180 kV/m or greater, and action potentials were evoked in the afferent fibers innervating G1, G2, and down hair receptors. No action potentials were evoked in afferent fibers innervating type I, type II, field receptors, muscle spindles, or joint receptors. These results indicate that a strong DC electric field induced movement of the hairs, eventually evoked excitation of the hair receptors, but that other receptors located under the skin were not influenced by electric field exposure.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
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