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  • 1985-1989  (4)
  • 1975-1979  (2)
  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Biochemistry 15 (1976), S. 65-70 
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Prelimary results of an extended program of coordinated X-ray and optical observations of TT Ari are presented. The object was observed on August 21/22 1985 both in X-rays (EXOSAT) and optical range, about 100 days after the return to the active state. The first detailed simultaneous study of TT Ari in active state indicates the presence of strongly absorbing structure in the system.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We present preliminary results of the EXOSAT X-ray observations and quasisimultaneous and simultaneous optical photometry of the X-ray source EX0020528+1454.8=1E0205+149 found independently as an serendipitous source both with Einstein and EXOSAT satellites. The optical counterpart is a pair of dMe stars. Our results indicate that the object is variable both in X-rays and optical wavelenghts, and probably belongs to dMe flare stars.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1238
    Keywords: Transfusion ; Oxygen transport ; 2,3 Diphosphoglycerate ; Respiratory failure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The goals of management of patients with respiratory failure include improving arterial oxygenation with PEEP and red cell transfusion to maintain oxygen carrying capacity, both of which contribute to improving tissue oxygen delivery. However, standard CPD-stored blood is rapidly depleted of 2,3 diphosphoglycerate (2,3 DPG) and ATP, with resultant inadequacy of the red cell oxygen transport function. In 15 patients requiring mechanical ventilation with PEEP whose initial Hct≤35%, we studied the effect of transfusion of 7 ml/kg of CPD-stored packed red blood cells on hemodynamic and oxygen delivery variables, pulmonary venous admixture (QA/QT), and erythrocytic P50, 2,3 DPG and ATP concentrations. Hemodynamics were not significantly altered by transfusion. 2,3 DPG decreased significantly from 14.5±1.1 to 13.1±1.5 mcmol/g Hb (mean±SD, p〈0.05). There was no significant change in P50 or ATP. QA/QT rose significantly, from 20.1±7.8 to 28.9±12.3% (mean±SD, p〈0.02). In our patients, an increase in arterial oxygen content obtained by transfusion was not followed by any associated decrease in cardiac work, as implied by solution of equations for oxygen delivery and oxygen consumption. The rise in QA/QT is undesirable in patients requiring PEEP, since it complicates management of their mechanical ventilatory support.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular histology 20 (1988), S. 427-432 
    ISSN: 1573-6865
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary This work describes a method for the immunolocalization of laminin on 1μm-thick tissue sections using a postembedding immunofluorescence technique. Embedding of unfixed or formaldehyde-fixed mouse renal cortex in either of the acrylic resins LR-White or LR-Gold permitted reliable postembedding immunofluorescence staining for laminin. LR-White was heat-cured at 50°C whereas LR-Gold was polymerized at −25°C. A stronger immunostaining for laminin was obtained from tissue embedded in polymerized LR-Gold compared with the staining from tissue embedded in LR-White. Prerequisites for adequate postembedding immunostaining are the partial dehydration of the tissue (maximum ethanol concentration, 70%) and pepsin treatment of the tissue sections prior to performing the immunostaining reactions.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 449 (1979), S. 127-134 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On Silicate Apatites Containing Bismuth. Unusual Oxide ApatitesThe compositions Ca3,2Bi6,8(SiO4)6O1,4 □0,6 and Sr2,8Bi7,2 (SiO4)6O1,6□0,4 have been ascertained for the thermally formed oxide apatites. The metastable apatite phase with a homogeneity range from Pb5,2Bi4,8(SiO4)6O0,4 □1,6 to Pb6Bi4(SiO4)6□2 crystallizes from the glassy state below 600°C. The vacancies □ correspond to the unoccupied halide positions. Ca3,2Bi6,8(SiO4)6O0,8 (OH)1,2 (hydrothermal synthesis) and Pb4Bi6(SiO4)6F2 show the usual stoichiometry, however. The peculiar electron configuration of Bi3+ and Pb2+ is considered responsible for the differences from apatites of La3+ and of the alkaline earth ions.
    Notes: Für die thermisch entstandenen Oxidapatite wurde die Zusammensetzung Ca3,2Bi6,8(SiO4)6O1,4 □0,6 bzw. Sr2,8Sr2,8Bi7,2 (SiO4)6O1,6□0,4 ermittelt. Die metastabile Apatitphase mit dem Homogenitätsbereich von Pb5,2Bi4,8(SiO4)6O0,4 □1,6 bis Pb6Bi4(SiO4)6 □2 kristallisiert unterhalb 600°C aus dem Glaszustand. Die Lücken □ entsprechen den unbesetzten Halogenidlagen. Dagegen weisen Ca3,2Bi6,8(SiO4)6O0,8 (OH)1,2 (Hydrothermalsynthese) sowie Pb4Bi6(SiO4)6F2 die übliche Stöchiometrie auf. Die besondere Elektronenkonfiguration von Bi3+ und Pb2+ wird für die Unterschiede gegenüber den Apatiten des La3+ und der Erdalkaliionen verantwortlich gemacht.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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