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  • 1
    ISSN: 0011-2240
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 38 (1982), S. 516-517 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The average capillary blood flow in the testes was found to be 181 μl/min/g testis tissue (n=19) in rats starved for 5 days and 273 μl/min/g (n=18, p〈0.01) in the control group. Plasma testosterone was significantly decreased in the starved animals (1.00±0.06 ng/ml vs 5.43±0.63 ng/ml). When starved and control rats were stimulated with human chorion gonadotropin, testosterone values in plasma were greatly increased in both groups. The capillary blood flow was not altered. The data indicate that human chorion gonadotropin can stimulate testosterone production in the starved rat without influencing the reduced capillary blood flow.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1435-2451
    Keywords: Extrahepatic bile duct obstruction ; Bile flow ; Hepatobiliary scintiscan ; Extrahepatischer Gallenwegsstau ; Gallefluß ; Hepatobilidre Funktionsszintigraphie (HBFS)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Unter Anwendung der organisomorphen Systemtheorie wurde an Kaninchen (n = 35) und Schweinen (n = 14) versucht, mittels hepatobiliärer Funktionsszintigraphie (HBFS, 99 mTc-HIDA) den extrahepatischen Gallefluw zu bestimmen. Die mittlere Transitzeit (MTT) erweist sich bei experimentell induzierten, unvollständigen Stenosen als günstiger Parameter, das Ausmaß der Abflußstörung zu quantifizie ren. Durch eine Reentrant-Kanülierung des Ductus Choledochus am Schwein wird die gute Korrelation zwischen Zeitaktivitätskurve in der HBFS und Gallefluß hergestellt.
    Notes: Summary The organ isomorphic system theory was applied to the determination of extrahepatic bile flow in rabbits (n = 35) and pigs (n = 14) by hepatobiliary scintigraphy (HBFS). The mean transit time (MTT) is a useful parameter for quantification of experimentally induced incomplete extrahepatic stenoses and their relevance to bile flow. Re-entrant cannulation of the common bile duct in pigs results in a good correlation between the time activity curve in HBFS and bile flow.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 26 (1991), S. 2337-2342 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract BaTiO3 positive temperature coefficient of resistance ceramics were prepared with the general composition (La0.002Ca x Ba0.998−x ) (Ti1.01−y Mn y )O3 ·zSiO2 and sintered in air. The Ca content as well as the amount of doped Mn were varied ranging from 4–20 mol% and 0.02–0.04 mol%, respectively. Up to 4 mol% Si was added using a new method as well as by the classical means as solid silica. In the new method, the desired quantity of Si(OC2O5)4 (Si(OEt)4), contained in dry tetrahydrofurane (THF), was dropped under a slight stream of inert gas into the vigorously stirred aqueous slurry which was manufactured after the calcination process. The addition of Si by this technique was found to result in a homogenization of the microstructure and an improvement in electrical properties. The effect of Si on electrical properties is explained by the influence of the observed second phase on the equilibrium of Ba vacancies. The results of further variation of Ca and Mn contents are presented.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    European journal of nuclear medicine 2 (1977), S. 261-268 
    ISSN: 1619-7089
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Bone scintigraphy using 99mTc-labeled phosphate compounds and the scintillation camera supplements X-ray diagnosis in an excellent manner, for localizing and determining the size and metabolic activity of inflammations, degenerations, and malignancies of the skeletal system. It is of prime importance in the early detection and staging of the disease, as well as in registering the course and response to therapy of osseous metastases.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    European journal of nuclear medicine 8 (1983), S. 218-222 
    ISSN: 1619-7089
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Red blood cells (RBC) were labeled with 99mTc in vitro after in vivo pretreatment with a stannous solution. The whole in vivo/in vitro procedure took 30–40 min. Pretinning was carried out by injection of either 6 mg DTPA and 0.6 mg Sn++ (Sn-DTPA) or 5 mg pyrophosphate and 0.7 mg Sn++ (Sn-PYP). The results of 1,356 patients were evaluated. The labeling yield was 89.7% (mean) after pretinning with Sn-DTPA and 88.2% following Sn-PYP pretreatment, the median values being 94% and 92%, respectively. The new method was successfully used in over 2,000 patients who had a radionuclide-ventriculography and in 38 patients studied for localization of occult gastrointestinal bleeding. Adverse side effects have never been observed.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1573-7241
    Keywords: nifedipine ; acebutolol ; coronary artery disease ; radionuclide ventriculography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The efficacy of a fixed combination of 10 mg nifedipine and 100 mg acebutolol was tested in 21 patients with angiographically proven coronary artery disease (CAD). Ejection fraction (EF), emptying and filling rate (VS and VD), and end-systolic volume (ESV) were assessed by means of radionuclide ventriculography at rest and during exercise prior to as well as 1 hour and 5 hours following oral drug application. Whereas exercise-induced worsening of cardiac function had been documented in all the patients prior to medication, EF and ESV improved significantly after drug administration.
    Type of Medium: Electronic Resource
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