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  • 1995-1999  (2)
  • 1990-1994  (10)
  • Polymer and Materials Science  (5)
  • macaques  (4)
  • Immunohistochemistry  (2)
  • 07.77.+p
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Materialart
Erscheinungszeitraum
Jahr
Schlagwörter
  • 1
    Digitale Medien
    Digitale Medien
    Generation of an intense low-velocity metastable-neon atomic beam (1993)
    Springer
    Applied physics 56 (1993), S. 21-24 
    Details
    ISSN: 1432-0649
    Schlagwort(e): 07.77.+p
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract A metastable neon (1S 5) atomic beam with a velocity of 394 m/s (373 K) and an intensity of 1.1×1015 s−1 sr−1 is produced with a novel construction using a dc glow discharge.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00332149
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  • 2
    Digitale Medien
    Digitale Medien
    The expression of placental-type glutathione S-tranferase (GST-π) in human cutaneous squamous cell carcinoma and normal human skin (1995)
    Springer
    Virchows Archiv 425 (1995), S. 589-592 
    Details
    ISSN: 1432-2307
    Schlagwort(e): Placental-type glutathione S-transferase ; Human skin ; Squamous cell carcinoma ; Northern blotting ; Immunohistochemistry
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract The expression of human placental-type glutathione S-transferase (GST-π) was investigated in human cutaneous squamous cell carcinoma (SCC) and normal skin using Northern blot and immunohistochemical analysis. In Northern blot examination, the expression of GST-π transcript was recognized in all instances, and SCC showed a significantly higher expression of GST-π than normal skin. In immunohistochemical examination, GST-π was stained well in the cytoplasm of all cells of the stratum granulosum, many cells of the stratum spinosum and a few cells of the stratum basale in normal skin. Some cells of the stratum spinosum and almost all cells of the stratum basale showed only a weakly positive or almost negative reaction for GST-π. No nuclear staining of GST-π was obvious in normal epidermal cells. In SCC, many cells showed strong positivity for GST-π in the cytoplasm, and some were obviously accompanied by nuclear staining of GST-π. These findings suggest that GST-π exists mainly in many cells in the upper layers of the normal epidermis and that GST-π is involved in the process of carcinogenesis.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00199348
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  • 3
    Digitale Medien
    Digitale Medien
    Immunohistochemical localization of lipocortins in normal and psoriatic human skin (1993)
    Springer
    Archives of dermatological research 285 (1993), S. 296-299 
    Details
    ISSN: 1432-069X
    Schlagwort(e): Immunoblotting ; Immunohistochemistry ; Lipocortin ; Psoriasis
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract The distribution of lipocortin I, a steroid-induced inhibitory protein of phospholipase A2, was examined in normal and psoriatic human skin. Using immunoblotting analysis with specific antibody against human lipocortin I purified from human placenta, lipocortin I was detected as a 37 kDa protein in cultured epidermal cells, whole skin and epidermis. In the dermis and stratum corneum, lipocortin I was only weakly detectable by Western blotting. In contrast to normal skin, much less lipocortin I was detected by Western blotting analysis in psoriatic skin. Using immunoperoxidase immunohistochemical analysis, lipocortin I was demonstrated in the cytoplasm of keratinocytes in the upper and middle layers of the epidermis and in some infiltrating cells in the dermis in normal skin. In involved psoriatic skin, by contrast, lipocortin I was almost undetectable in the epidermis, although it was demonstrated in some infiltrating cells in the dermis. No immunostaining of lipocortin I was observed in the stratum corneum of normal or psoriatic skin. These results, together with the finding that phospholipase A2 activity is higher in psoriatic epidermis than in normal epidermis, suggest that lipocortin I plays an important role in the regulation of differentiation and proliferation of epidermal keratinocytes.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00371600
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  • 4
    Digitale Medien
    Digitale Medien
    DNA polymorphisms in the ψβ1- and β-globin gene regions in asian macaques (1991)
    Springer
    Biochemical genetics 29 (1991), S. 177-187 
    Details
    ISSN: 1573-4927
    Schlagwort(e): DNA polymorphisms ; ψβ1-globin gene ; δ-globin gene ; β-globin gene ; macaques
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract DNA polymorphisms in the ψβ1-β-globin gene region in nine Asian macaques(Macaca fuscata, M. mulatta, M. nemestrina, M. cyclopis, M. fascicularis, M. arctoides, M. radiata, M. maura, andM. assamensis) were examined using several restriction endonucleases and the human ψβ1, δIVS2, and βIVS2 probes. TheBamHI site 3′ to the β-globin gene was polymorphic inM. fuscata andM. mulatta, while the HincII site and the EcoRI site in the ψβ1-globin gene region was highly polymorphic inM. fuscata andM. mulatta, respectively. These polymorphic sites also seem to be present in other Asian macaques. The present study of the polymorphism at theBamHI site 3′ to the β-globin gene in Asian macaques supports, at the nuclear DNA level, the idea that thefascicularis group includingM. fuscata, M. mulatta, M. cyclopis, andM. fascicularis is different from other Asian macaque groups.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02401811
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  • 5
    Digitale Medien
    Digitale Medien
    DNA polymorphisms in the ε- and γ-globin gene regions in asian macaques (1991)
    Springer
    Biochemical genetics 29 (1991), S. 189-202 
    Details
    ISSN: 1573-4927
    Schlagwort(e): DNA polymorphism ; ε-globin gene ; γ-globin gene ; macaques
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract DNA polymorphisms in the ε- and γ-globin gene regions in nine Asian macaques(Macaca fuscata, M. mulatta, M. nemestrina, M. cyclopis, M. fascicularis, M. arctoides, M. radiata, M. maura, andM. assamensis) were examined using several different restriction endonucleases and the human ε and γIVS2 probes.M. fuscata andM. mulatta had highly polymorphic sites(BglII andHincII, respectively) in the ε-globin gene region. TheBamHI site in the γ-globin gene region was highly polymorphic inM. mulatta, while theBglII andHindIII sites in the γ-globin gene region were highly polymorphic inM. fuscata andM. mulatta. The presence of the γ-globin gene triplication was frequently observed inM. fuscata. The gain or loss of an additionalBglII site between two γ-globin genes in Asian macaques seems to be very meaningful for discussing genetic relationships among them.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02401812
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  • 6
    Digitale Medien
    Digitale Medien
    DNA polymorphisms in the ψβ1- and β-globin gene regions in asian macaques (1991)
    Springer
    Biochemical genetics 29 (1991), S. 177-187 
    Details
    ISSN: 1573-4927
    Schlagwort(e): DNA polymorphisms ; ψβ1-globin gene ; δ-globin gene ; β-globin gene ; macaques
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract DNA polymorphisms in the ψβ1-β-globin gene region in nine Asian macaques(Macaca fuscata, M. mulatta, M. nemestrina, M. cyclopis, M. fascicularis, M. arctoides, M. radiata, M. maura, andM. assamensis) were examined using several restriction endonucleases and the human ψβ1, δIVS2, and βIVS2 probes. TheBamHI site 3′ to the β-globin gene was polymorphic inM. fuscata andM. mulatta, while the HincII site and the EcoRI site in the ψβ1-globin gene region was highly polymorphic inM. fuscata andM. mulatta, respectively. These polymorphic sites also seem to be present in other Asian macaques. The present study of the polymorphism at theBamHI site 3′ to the β-globin gene in Asian macaques supports, at the nuclear DNA level, the idea that thefascicularis group includingM. fuscata, M. mulatta, M. cyclopis, andM. fascicularis is different from other Asian macaque groups.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00554210
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  • 7
    Digitale Medien
    Digitale Medien
    DNA polymorphisms in the ε- and γ-globin gene regions in asian macaques (1991)
    Springer
    Biochemical genetics 29 (1991), S. 189-202 
    Details
    ISSN: 1573-4927
    Schlagwort(e): DNA polymorphism ; ε-globin gene ; γ-globin gene ; macaques
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract DNA polymorphisms in the ε- and γ-globin gene regions in nine Asian macaques(Macaca fuscata, M. mulatta, M. nemestrina, M. cyclopis, M. fascicularis, M. arctoides, M. radiata, M. maura, andM. assamensis) were examined using several different restriction endonucleases and the human ε and γIVS2 probes.M. fuscata andM. mulatta had highly polymorphic sites(BglII andHincII, respectively) in the ε-globin gene region. TheBamHI site in the γ-globin gene region was highly polymorphic inM. mulatta, while theBglII andHindIII sites in the γ-globin gene region were highly polymorphic inM. fuscata andM. mulatta. The presence of the γ-globin gene triplication was frequently observed inM. fuscata. The gain or loss of an additionalBglII site between two γ-globin genes in Asian macaques seems to be very meaningful for discussing genetic relationships among them.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00554211
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  • 8
    Digitale Medien
    Digitale Medien
    Resist system based on the cationic photocrosslinking of poly(4-hydroxystyrene) and polyfunctional electrophiles (1993)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 31 (1993), S. 1-11 
    Details
    ISSN: 0887-624X
    Schlagwort(e): chemical amplification ; photoresist ; poly(p-hydroxystyrene) ; photocrosslinking ; carbocationic ; radiation-sensitive ; crosslinker ; triarylsulfonium salt ; thin-film chemistry ; UV ; E-beam ; x-ray ; Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: New resist systems based on acid-catalyzed, electrophilic aromatic substitution are described. These new resists show high sensitivity to deep UV and E-beam radiation with values approaching 2 mJ/cm2 and 2 μC/cm2, respectively. The resists are based on a three component system consisting of poly(4-hydroxystyrene), a polyfunctional, low molecular weight, latent electrophile, and a photoactive onium salt used as an acid generator. Irradiation of the resist film produces a latent image of acid dispersed in the matrix. During the postbaking step the photo-generated acid reacts with the latent polyfunctional electrophile and releases a reactive carbocationic intermediate with concomitant liberation of acetic acid. The carbocationic intermediate then reacts with neighboring phenolic moieties in a crosslinking reaction. The substitution reaction liberates a proton, making the process catalytic in nature, thus incorporating the concept of chemical amplification. These highly sensitive materials can be used as nonswelling negative multipurpose resists that function in deep-UV, x-ray or E-beam modes. © 1993 John Wiley & Sons, Inc.
    Zusätzliches Material: 7 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pola.1993.080310101
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  • 9
    Digitale Medien
    Digitale Medien
    A new carbon fiber from lignin (1992)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 44 (1992), S. 127-134 
    Details
    ISSN: 0021-8995
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: A new carbon fiber was prepared from the lignin (steam-exploded lignin), which was isolated from steam-exploded birch wood (Betula platyphylla). The lignin was modified to melt thermally on hydrogenolysis. The chloroform soluble and carbon disulfide insoluble fraction (HL) of the reaction products was heated at 300-350°C for 30 min, giving a molten viscous material (HHL). The HHL had a softening point of 110°C and melted at over 145°C to form viscous liquid. When HHL was subjected to a spinning test, according to a conventional fusion spinning method at a speed over 100 m/min, a fine filament could be continuously formed through a pinhole (diameter: 0.3 mm). After the filaments were heated in air at 1-2°C/min up to 210°C, by which time the filament was converted to have an infusible property, the filaments were carbonized by heating from a room temperature to 1000°C at a heating rate of 5°C/min in a stream of nitrogen. The typical properties of the lignin based carbon fiber were as follows: Fiber diameter = 7.6 ± 2.7μ Elongation = 1.63 ± 0.29% Tensile strength = 660 ± 230 MPa; Modulus of elasticity = 40.7 ± 6.3 GPa. The chemical structure of the precursor was remarkably changed from that of the original lignin, indicating the elimination of aliphatic functional groups implied originally in the starting material.
    Zusätzliches Material: 6 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/app.1992.070440113
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  • 10
    Digitale Medien
    Digitale Medien
    A new modification method of exploded lignin for the preparation of a carbon fiber precursor (1993)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 48 (1993), S. 1485-1491 
    Details
    ISSN: 0021-8995
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: A lignin-pitch for carbon fiber was prepared in a high yield from exploded lignin on phenolysis followed by heat treatment under a vacuum. The lignin-pitch had an excellent spinnability in the melt state to form a fine filament. The green fibers were easily made infusible when heated in air at a relatively high heating rate (15-60°C/h). The lignin-based carbon fiber was produced in 43.7% of yield based on a starting material. The tensile strength was more than 400 MPa, indicating that the lignin-based carbon fiber is classified into a general purpose grade. © 1993 John Wiley & Sons, Inc.
    Zusätzliches Material: 3 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/app.1993.070480817
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