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  • 21
    Electronic Resource
    Electronic Resource
    Gamma Surgery for Hemangiopericytomas (2000)
    Springer
    Acta neurochirurgica 142 (2000), S. 527-537 
    Details
    ISSN: 0942-0940
    Keywords: Keywords: Gamma surgery; Gamma knife; hemangiopericytoma.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary ¶ A retrospective analysis of a consecutive series of 12 patients with 15 intracranial hemangiopericytomas treated at the University of Virginia using Gamma surgery is presented. Clinical and radiographic follow up of 3 to 56 months is available for 10 patients with 12 tumors. There was one tumor present at the time of initial Gamma surgery in each patient. Two new tumors occurred in patients previously treated. Nine of the tumors decreased in volume and three remained stable. Four of the nine tumors that shrank later progressed at an average of 22 months after treatment. Of the tumors that decreased in volume and have not progressed, the response has been for an average of 11 months. The follow-up for two tumors that remained unchanged was 10 and 34 months (average 22 months). A third tumor was unchanged at 42 months but the patient died of new disease adjacent to the treated area in the anterior skull base. There were no complications and the quality of life following the procedure was maintained or improved in every case. Gamma surgery is effective in palliating the patients by decreasing tumor volume and delaying recurrence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s007010050465
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  • 22
    Electronic Resource
    Electronic Resource
    Failure in management of pituitary tumors discussion of 3 cases (1995)
    Springer
    Acta neurochirurgica 134 (1995), S. 159-166 
    Details
    ISSN: 0942-0940
    Keywords: Failure ; pituitary adenoma ; treatment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Three patients with pituitary adenomas (ACTH-secreting, non-secretory, and multi-secretory) with unfavorable course, in spite of repeated microsurgery, drag therapy, as well as radiotherapy and radiosurgery, are presented. Each case was re-evaluated for possible flaws in management. Two of the invasive tumors continued to grow, in spite of correct management. The third patient with a pituitary adenoma underwent microsurgical resection, and later following a false positive finding of recurrence, received radiotherapy and underwent radiosurgery. The lesion actually was chronic inflammatory tissue.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01417684
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  • 23
    Electronic Resource
    Electronic Resource
    Gamma knife surgery for craniopharyngioma (1995)
    Springer
    Acta neurochirurgica 134 (1995), S. 167-176 
    Details
    ISSN: 0942-0940
    Keywords: Craniopharyngioma ; Gamma Knife ; radiosurgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We present our results of Gamma Knife surgery for craniopharyngioma in nine patients. The current status of surgery, radiation therapy, intracavitary instillation of radionucleides and Gamma Knife surgery in the management of craniopharyngiomas is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01417685
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  • 24
    Electronic Resource
    Electronic Resource
    Characteristics of VHF radiowave scintillations over a solar cycle (1983–1993) at a low-latitude station: Waltair (17.7°N, 83.3°E) (1997)
    Springer
    Annales geophysicae 15 (1997), S. 729-733 
    Details
    ISSN: 0992-7689
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The characteristics of VHF radiowave scintillations at 244 MHz (FLEETSAT) during a complete solar cycle (1983–93) at a low-latitude station, Waltair (17.7°N, 83.3°E), are presented. The occurrence of night-time scintillations shows equinoctial maxima and summer minima in all the epochs of solar activity, and follows the solar activity. The daytime scintillation occurrence is negatively correlated with the solar activity and shows maximum occurrence during the summer months in a period of low solar activity. The occurrence of night-time scintillations is inhibited during disturbed days of high solar activity and enhanced during low solar activity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s00585-997-0729-3
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  • 25
    Electronic Resource
    Electronic Resource
    Soil Solarization: Technique for Decontamination of an Organophosphorus Pesticide from Soil and Nematode Control (2000)
    Springer
    Bulletin of environmental contamination and toxicology 64 (2000), S. 40-46 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001289910007
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  • 26
    Electronic Resource
    Electronic Resource
    Lubrication of rollers by power law fluids considering consistency-variation with pressure and temperature (1995)
    Springer
    Acta mechanica 111 (1995), S. 223-239 
    Details
    ISSN: 1619-6937
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary The steady state lubrication of two rigid cylindrical rollers under entraining and squeezing motion including cavitation is studied. The lubricant consistencym of the power law fluid is assumed to be pressure and temperature dependent. A numerical solution to the coupled Reynolds' and energy equation for pressure and temperature has been obtained using higher order predictor corrector method. Also several other bearing characteristics such as load, traction ratios, maximum pressure, location of pressure maximum, temperature ratios etc. are calculated and discussed in detail for different values of the power law index including the Newtonian fluid behaviour. A comparison of the present results with those under isothermal condition is also made. It is concluded that the effect of temperature is to shift the position of the pressure peak slightly away from the center line of contact, whereas the trend is opposite for the cavitation points. The variation in consistency is found to be very significant, especially in the pressure peak region.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01376932
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  • 27
    Electronic Resource
    Electronic Resource
    Effects of phosphorous oxychloride, phosphorous trichloride and dichlorophenylphosphine on the radical polymerisation of acrylonitrile under heterogeneous conditions (1980)
    Springer
    Polymer bulletin 2 (1980), S. 117-123 
    Details
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary The effects of C6H5PCl2, POCl3, and PCl3 on the free radical polymerisation of acrylonitrile initiated bya,a′-azobisisobutyronitrile were kinetically investigated in benzene and trichloroethylene solutions. With PCl3 rates of polymerisation were unaffected but the degrees of polymerisation were found to decrease with increasing PCl3. With C6H5PCl2 and POCl3 however both rates and degrees of polymerisation were adversely affected. Thus PCl3 acts as a chain transfer agent while the other two phosphorous compounds function as degradative chain transfer agents.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01033386
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  • 28
    Electronic Resource
    Electronic Resource
    Kinetics and mechanism of the oxidation of 2-furancarbox-aldehyde by thallium(III) in perchloric acid solutions (1991)
    Springer
    Reaction kinetics and catalysis letters 43 (1991), S. 133-141 
    Details
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Кинетика окисления 2-фуранкарбоксиальдегида перхпоратом таллия при 50°C подчиняется следующему уравнению: где к равно (4,5±0,2)·10−3 дм3 моля−1 сек−1 при 50°C. Скорость реакции не зависит от [H+] и продуктом окисления является 2-фуранкарбоксильная кислота.
    Notes: Abstract The kinetics of the oxidation of 2-furancarboxaldehyde by thallic perchlorate at 50°C obeys the rate law (1) $$ - \frac{{d[T1 (III)]}}{{dt}} = k[T1 (III)] [Substrate]$$ k has a value of 4.5±0.2×10−3 dm3 mol−1s−1 at 50°C. The rate of the reaction does not depend on [H+] and the oxidation product is 2-furancarboxylic acid.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02075424
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  • 29
    Electronic Resource
    Electronic Resource
    P-V-T relations of propane in the range 373. 15-423. 15 K and 0.2-4.0 MPa (1982)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 28 (1982), S. 695-696 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690280423
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  • 30
    Electronic Resource
    Electronic Resource
    Kinetics and mechanism of oxidation of hydroxylamine by peroxomonosulphate (1992)
    New York, NY : Wiley-Blackwell
    International Journal of Chemical Kinetics 24 (1992), S. 665-670 
    Details
    ISSN: 0538-8066
    Keywords: Chemistry ; Physical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The kinetics of the reaction (1) obey the rate law (2) in acetate buffered solutions. A comparison with H2O2 and S2O82- shows the reactivity order to be H2O2 〈 HSO5- 〉 S2O82-. © John Wiley & Sons, Inc.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/kin.550240706
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