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  • 1
    Electronic Resource
    Electronic Resource
    Phase transition study of 1,4-butanediol dimethacrylate by the optical Kerr effect and Brillouin light scattering
    Amsterdam : Elsevier
    Journal of Molecular Structure 325 (1994), S. 53-57 
    Details
    ISSN: 0022-2860
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0022-2860(94)80017-0
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Stereoselective behaviour of s-trithiane derivatives in the presence of methoxide ions in various solvents
    Amsterdam : Elsevier
    Tetrahedron Letters 18 (1977), S. 451-454 
    Details
    ISSN: 0040-4039
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/S0040-4039(01)92663-2
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  • 3
    Electronic Resource
    Electronic Resource
    Sulphur-containing polyacrylates II: UV-induced polymerization of 2,2'-thiobisethanol dimethacrylate
    Amsterdam : Elsevier
    Journal of Photochemistry and Photobiology A: Chemistry 46 (1989), S. 121-127 
    Details
    ISSN: 1010-6030
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/1010-6030(89)87038-8
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  • 4
    Electronic Resource
    Electronic Resource
    Sulfur-containing polyacrylates. IV. The effect of —S—and —O—linkages on the photo- and thermally induced polymerization of dimethacrylates (1993)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 31 (1993), S. 2365-2371 
    Details
    ISSN: 0887-624X
    Keywords: dimethacrylates ; photofragmentating initiators ; H-abstraction initiators ; thermal initiators ; oxygen inhibition ; hydrogen-donor ability ; thioether bond ; ether bond ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The photo-and thermally induced polymerization of four analogous dimethacrylates—2,2′-thiobisethanol dimethacrylate, 2,2′-oxybisethanol dimethacrylate, pentanediol-1,5-dimethacrylate, and butanediol-1,4-dimethacrylate—was studied to determine the influence of—S—and—O—linkages on the polymerization course. Generally, the presence of the heteroatom in the monomer molecule results in higher reaction rates and yields but the extent of this influence highly depends on the polymerization conditions and the type of heteroatom. The effect of the thioether bond exceeds the effect of the ether bond at lower (40°C) temperature in the presence of oxygen but the reverse situation takes place at higher (75°C) temperature and/or in an inert atmosphere when photofragmentating and thermal initiators are used. The results are discussed mainly in terms of propensity of sulfides and ethers to act as hydrogen donors and chain-transfer agents. © 1993 John Wiley & Sons, Inc.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pola.1993.080310919
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  • 5
    Electronic Resource
    Electronic Resource
    Evaluation of selected parameters of the cytokine system in burn wounds in children (2000)
    Springer
    Pediatric surgery international 16 (2000), S. 80-84 
    Details
    ISSN: 1437-9813
    Keywords: Key words Burn wounds ; TNF-α ; Interleukin receptors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Using immunohistochemical methods, we studied cellular infiltrations of burn wounds in children. The relative number of cells with cluster of differentiation 3 (CD3) CD68 molecules, cells with receptors for interleukin-2 (IL-2) and its receptor (IL-2R), IL-3, IL-3R, IL-6, IL-6R, tumor necrosis factor-alpha (TNF-α), TNF-αR, and cells with TNF-α molecules on their surface was studied. The relationships between these values were determined. The following results were observed: (1) A positive correlation between the relative numbers of CD68 cells and the percentage of cells with receptors for IL-2 (IL-2R) and TNF-α (TNF-αR); (2) A negative correlation between the relative numbers of CD3 cells and cells with receptors for IL-2 and TNF-α; (3) A strong negative correlation between the relative numbers of CD3 and CD68 cells; (4) A positive correlation between the percentage of cells with receptors for TNF-α and the size of the burn wound; and (5) A positive correlation between the relative numbers of cells with the TNF-α molecule on their surfaces and studied receptors for interleukins, i.e., IL-2R, IL-3R, IL-6R, and TNF-αR. These results indicate a key role for TNF-α and its receptor within the cytokine system in the course of the inflammatory reaction in burn wounds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003830050022
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  • 6
    Electronic Resource
    Electronic Resource
    Mechanism of impaired immunologic response to bacterial antigens in burn wounds in children (2000)
    Springer
    Pediatric surgery international 16 (2000), S. 85-88 
    Details
    ISSN: 1437-9813
    Keywords: Key words Burn wounds ; Lymphocyte subpopulation ; Bacterial infection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Material was obtained from necrotic tissue excised from burn wounds in 60 children and examined immunohistochemically for the percentages of CD3, CD4, CD8, CD20, and CD68 cells. The results were then correlated with the burn surface area (BSA). Bacteriologic studies revealed the presence of bacteria in only 22 wounds with BSA greater than 10% of total body surface area. In this group, the proportion of CD3, CD4, CD8, CD20, and CD68 cells was correlated with the severity of infection, measured as the number of bacteria per g tissue. The results showed a positive correlation between the BSA and the percentage of CD8 cells (P 〈 0.001) and a negative correlation between CD4 cells and BSA (P 〈 0.02). The correlation between CD4/CD8 index and BSA was significantly negative. Likewise, a significant negative correlation was also noted between the percentage of CD4 and CD8 cells within the wound (P 〈 0.001). The severity of infection (bacteria/g tissue) was also positively correlated with the percentage of CD8 cells (P 〈 0.05) and negatively with the percentage of CD4 cells (P 〈 0.05). The correlation between CD4/CD8 index and intensity of infection was also highly significant. The results obtained show that in extensive burn wounds bacterial antigens may not be recognized properly due to the decreased percentage of CD4 cells and increased percentage of CD8 cells, which enhances bacterial growth in these wounds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003830050023
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  • 7
    Electronic Resource
    Electronic Resource
    ESR study of γ-irradiated 1,3,5-trithiane and its derivatives (1978)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 16 (1978), S. 2991-2996 
    Details
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Radicals formed in γ-irradiated 1,3,5-trithiane and its derivatives at room temperature have been studied by ESR spectroscopy. ESR evidence establishes that 1,3,5-trithiane as well as α- and β-2,4,6-trimethyl-1,3,5-trithiane yield radicals mainly by loss of the hydrogen atom, whereas α- and β-2,4,6-triphenyl-1,3,5-trithiane and 2,4,6-trimethyl-2,4,6-triphenyl-1,3,5-trithiane produce radicals that are parent radical cations, which are also present in small amounts in aliphatic trithianes. Furthermore, in all the spectra examined R-S.-type radicals are observed. The probable initiation process of radiation-induced 1,3,5-trithiane polymerization is discussed briefly.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1978.170161124
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