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  • Electronic Resource  (4)
  • ethylbenzene  (2)
  • Antigen distribution  (1)
  • C2+ hydrocarbons  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Borderline-tissues as sites of antigen deposition and persistence — a unifying concept of rheumatoid inflammation? (1985)
    Springer
    Rheumatology international 5 (1985), S. 221-227 
    Details
    ISSN: 1437-160X
    Keywords: Antigen distribution ; Experimental chronic polyarthritis ; Rheumatoid organs
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In organs of rheumatoid inflammation avascular tissue is nourished by perfusion either directly from the blood stream or by neighbouring blood vessels (borderline-tissue). An open question remains whether this borderline-tissue promotes only the known antigen persistence, or also the first deposition of the pathogenetically important microbial antigen, and subsequently a deposition of immune complexes. The three markers (carbon, latex, and living bacteria) used in this study led to nearly the same pattern of deposition in two groups of organ systems: (1) Organs with clearance function belonging to the mononuclear phagocyte system (MPS); (2) organs with borderline-tissues: joint, kidney, artery, heart valve, and eye. This deposition at the borderline can be observed best in areas of the joint where highly vascularized tissues are adjacent to avascular tissues nourished via perfusion: (1) perichondrium, (2) peritendineum, (3) periosteum, and (4) endo- and perimysium. These localisations of particle deposition correspond exactly with the intraarticular predilection sites of chronic rheumatoid inflammation in man and animals. Our results indicate an easier settlement of corpuscular material in these localisations, which at the same time are unable to eliminate such substances, unlike the organs of the MPS. Our studies seem to support the theory of pathogenetic importance of the borderline-tissues as a localizing factor in the perpetuating rheumatoid inflammation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00541340
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Excess enthalpies of ethylbenzene + alkane systems at 25°C. An interpretation in terms of the Prigogine-Flory-Patterson model (1985)
    Springer
    Journal of solution chemistry 14 (1985), S. 345-354 
    Details
    ISSN: 1572-8927
    Keywords: Molar excess enthalpy ; ethylbenzene ; n-alkane ; order contribution
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The molar excess enthalpies for the ethylbenzene + n-decane and ethylbenzene + n-tetradecane systems have been measured at 25°C over the complete concentration range. These results and others from the literature for alkanes + ethylbenzene, and alkanes + toluene have been discussed in terms of the Prigogine-Flory-Patterson theory.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00646170
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    First and second thermodynamic mixing functions of ethylbenzene+n-nonane, +n-decane, and+n-dodecane at 25 and 45°C (1989)
    Springer
    Journal of solution chemistry 18 (1989), S. 893-901 
    Details
    ISSN: 1572-8927
    Keywords: Compressibilities ; isobaric thermal expansion ; heat capacities ; excess volumes ; excess enthalpies ; mixing functions ; pressure ; liquid mixtures ; ethylbenzene ; nonane ; decane ; dodecane
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Isothermal compressibilities κT and isobaric thermal expansion coefficients αp have been determined for mixtures of ethylbenzene+n-nonane, +n-decane, and +n-dodecane at 25 and 45°C in the whole range of composition. The excess functions $$(\kappa _\nu ^V )^E = - (\partial V^{\text{E}} /\partial p)_{\text{T}} $$ and $$(\alpha p{\text{V}})^{\text{E}} = (\partial {\text{V}}^{\text{E}} /\partial T)_p $$ have been obtained at each measured mole fraction. The first one $$ - (\partial {\text{V}}^{\text{E}} /\partial p)_{\text{T}} )$$ is zero for ethylbenzene +n-nonane, positive for ethylbenzene +n-decane, and +n-dodecane and increases with chain length n of the n-alkane. The $$(\partial {\text{V}}^{\text{E}} /\partial T)_{\text{P}} $$ function is positive for the three studied systems and nearly constant with n. Both mixing functions increase slightly with temperature. From this measurement and supplementary literature data of molar heat capacities at constant pressure C P , the isentropic compressibilities κS, the molar heat capacities at constant volume C V and the corresponding mixing functions have been calculated at 25°C. Furthermore, the pressure dependence of excess enthalpy H B , $$(\partial H^{\text{E}} /\partial p)_{\text{T}} $$ at zero pressure and at 25°C has been obtained from our experimental results of $$(\partial V^{\text{E}} /\partial T)_{\text{P}} $$ and experimental literature values for excess volume V E .
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00685064
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  • 4
    Electronic Resource
    Electronic Resource
    A highly active silica(silicon)-supported vanadia catalyst for C1 oxygenates and hydrocarbon production from partial oxidation of methane (1995)
    Springer
    Catalysis letters 33 (1995), S. 279-289 
    Details
    ISSN: 1572-879X
    Keywords: gas phase ; methane partial oxidation ; vanadia/silica-silicon ; C1 oxygenates ; C2+ hydrocarbons
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract A very low surface area silica-silicon substrate has been used as a support for vanadium oxide and has been tested in the partial oxidation of methane. Use of a reactor with variable dead volume ahead of the bed of the catalyst allows determining the relevance of gas phase reactions in initiating methane conversion. Experimental evidence supports that at atmospheric pressure C1 oxygenates are essentially produced on the catalyst surface rather than in the gas phase. Comparison with a high surface area silica-supported vanadium oxide catalyst clearly highlights the double role of surface area in promoting catalytic activity, but also in promoting non-selective further oxidation of reaction products. It is shown that a reaction system combining dead volume upstream the bed of the catalyst and a very low surface area is very promising to activate methane conversion to C1 oxygenates and C2+ hydrocarbons at remarkable TOF number preventing further non-selective oxidation. In addition, production of C2+ hydrocarbons is observed at temperatures as low as 750 K.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00814231
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    Paper (German National Licenses)
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