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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    European journal of nuclear medicine 10 (1985), S. 467-468 
    ISSN: 1619-7089
    Keywords: 99mTc-DPD uptake ; metastases
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Accumulation of 99mTc-diphosphonate was observed in 2 of 12 patients with liver metastases who had primary adenocarcinoma of the large bowel. The area of excessive radionuclide concentration corresponded well to the location of the hepatic metastases. The literature on this subject is reviewed and a possible mechanism of radionuclide accumulation is discussed.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Description / Table of Contents: Abstract Ionenes with the formula {[NMe2(CH2)5NMe2(CH2) n ]2I}p (where Me=methyl group;n=3, 4, 5; andp the degree of polymerization) have been prepared. Their NMR and IR spectra are shown and discussed. When these compounds are associated with silver iodide they give conducting compounds which obey the Arrhenius law. The highest conductivity of the AgI−N-pentylene, N′-alkylene, N, N, N′, N′-tetramethyl diammonium polyiodide system, at 25°C, is 0.01 Ω cm−1, corresponding to a compound containing 80% of AgI equivalent. This study has been carried out with the purpose of achieving solid generators.
    Notes: Résumé Les ionènes de formule {[NMe2(CH2)5NMe2(CH2) n ]2I}p (avec Me=radical méthyl;n=3, 4, 5; etp le degré de polymérization) ont été préparés. Leur spectre RMN et IR est présenté et discuté. Associés à de l'iodure d'argent, ils donnent des composés conducteurs qui suivent la loi d'Arrhénius. Le système AgI-polydiiodure de N pentylène N′ propyléne tétraméthyl N, N, N′, N′ diammonium possède à 25°C une conductivité maximale de 0.01 Ω cm−1 pour une composition renfermant 80% en équivalent de AgI. Cette étude se place dans une perspective de mise au point de générateurs tout solide.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-0878
    Keywords: Melanotrophs ; Immunogold technique ; Secretory vesicles ; γ3-MSH ; α-MSH ; Endorphins ; Rabbit
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The immunogold technique, employing antisera with clear-cut specificities, was used to localise different processing stages of pro-opiomelanocortin (POMC) in rabbit melanotropic cells. While the antiserum against γ 3-MSH labelled all the secretory granules including intrasaccular condensations in the Golgi apparatus, antisera against α-MSH only labelled extra-Golgi secretory vesicles (SV). All extra-Golgi SV were likewise labelled with the three antisera against α-MSH used, despite their different specificities for the desacetylated, N-acetylated or C-amidated forms of the peptide. The antibody against β-endorphin also labelled the extra-Golgi SV, while only some SV were labelled with the antibody against γ-endorphin. These results correlate with biochemical data in favour of mainly — if not exclusively — intragranular processing of POMC. Except for γ3-MSH, the cleavage of which could coincide with Golgi packaging of secretory material, other post-translational modifications of the precursor seem to occur when SV are discharged outside the Golgi area. The cleavage of γ-endorphin appears to be a later step in POMC processing, occurring in some mature SV.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1573-6865
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The evaluation of vascular grafts seeded with autologous endothelial cells requires a reliable method of endothelial cell identification. Previous attempts to identify positively tissue Factor VIII-related antigen, found in relatively large amounts in vascular endothelial cells, proved to be inconsistent when immunoperoxidase and immunofluorescent staining techniques were tried. Because the Factor VIII antigen is very labile, this study was performed to determine an optimal fixation technique for demonstrating this antigen in frozen sections of endothelial tissue. Unfixed, acetone-fixed, and formalin-fixed sections of canine carotid artery as well as vascular grafts fixed in 1-ethyl-3-(3-diaminopropyl)-carbodiimide were examined by an indirect immunofluorescence technique. Also, the immunoperoxidase method of Factor VIII identification was applied to unfixed, acetone-fixed, and carbodiimide-fixed endothelial cell seeded vascular grafts. Acetone was the preferred fixative, resulting in excellent antigen preservation with minimal background staining. The immunoperoxidase technique of Factor VIII-related antigen identification was found to be the method of choice because of its sensitivity.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Brookfield, Conn. : Wiley-Blackwell
    Polymer Composites 7 (1986), S. 91-95 
    ISSN: 0272-8397
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Multilayer printed circuits are a prime example of complex polymer composites. One of the critical steps in manufacturing of the circuit boards is the lamination process, which is frequently simulated by the aborted flows test (AFT). In order to obtain a composite free of voids and good interlaminar adhesion, it is imperative for the resin to flow into metal interfaces as well as intermix in the resin interfaces. On an empirical basis, the AFT is used as a process monitor for making prepreg, the glass fiber reinforced dielectric which supports the circuitry. Under a given set of conditions (temperature profile, pressure, layup), AFT measures advancement and reactivity of prepreg. By using a given batch of prepreg, the optimum laminating conditions can be identified, which are mainly a function of the temperature profile. Here, a calorimetric and rheological study of prepreg cure kinetics during lamination is presented. The flow process is being modeled by calculating the viscosity from combining a temperature dependent viscosity term with a kinetically controlled molecular weight term.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 564 (1988), S. 121-126 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: New m-Phenylene-bis-disubstituted PhosphanesNew m-phenylen-bis-disubstituted phosphanes are described. The crystal structure of a new manganese-phosphane complex 4 is reported.
    Notes: Es werden neue m-Phenylen-bis-disubstituierte Phosphane beschrieben. Mit m-C6H4[P(N(CH3)2)2]2 2 und (CH3C5H4)Mn(CO)3 1 entsteht ein zweikerniger Komplex 4; seine Röntgenstrukturanalyse wird angegeben.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Letters Edition 23 (1985), S. 275-275 
    ISSN: 0360-6384
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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