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  • 1
    Electronic Resource
    Electronic Resource
    Performance of protective polymeric coatings for nonlinear optical materials (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 64 (1988), S. 2279-2285 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: KDP, KD*P, and LiNbO3, three nonlinear optical materials that have been difficult to coat, are treated with polymeric surface layers. These layers hermetically seal the hygroscopic crystal surfaces. Their optical properties, thermal compatibility, high-power laser damage behavior, abrasive resistance, and suitability for overcoating with traditional, dielectric antireflection multilayers are reported.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.341703
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  • 2
    Electronic Resource
    Electronic Resource
    Gingival crevicular fluid antibody to oral microorganisms (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of periodontal research 20 (1985), S. 0 
    Details
    ISSN: 1600-0765
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The level and distribution of static crevicular fluid (SCF) antibody was studied in periodontal disease patients. Elevated levels of SCF antibody were demonstrated in approximately 9% of 1292 sites. The elevated responses were shown to be limited to particular bacterial specificities at any one site. Additional comparisons indicated that the frequency of elevated antibody levels in SCF were most closely related with responses to A. actinomycetemcomitans, B. gingivalis, and B. intermedius rather than clinical categorization.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0765.1985.tb00446.x
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  • 3
    Electronic Resource
    Electronic Resource
    Gingival crevicular fluid antibody to oral microorganisms (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of periodontal research 20 (1985), S. 0 
    Details
    ISSN: 1600-0765
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Gingival homogenates (GH) from periodontally diseased subjects were assayed for total immunoglobulins and for antibody to periodontopathic bacteria. Antibody activity in static crevicular fluid (SCF) and GH was compared using an ELISA. Expression of IgG antibody activity per μg IgG or per unit volume of fluid was highly correlated. Antibody activity in 46 SCF and 29 GH from diseased areas in localized juvenile periodontitis and adult periodontitis subjects were compared with serum antibody activity. Twenty of the 46 SCF contained significantly higher concentrations of IgG antibody activity to periodontopathic organisms than found in the respective sera. In addition, 87% of the GH contained higher concentrations of IgG antibody than the corresponding SCF. Variations in IgG antibody concentrations were often seen in different sites from the same subject. GH IgG antibody showed a range of specificities no broader than found in serum from the corresponding subjects when compared against a battery of organisms. Elevated IgA antibody concentrations were also observed in GH. These data support the notion that a significant portion of antibody found in the GH and SCF of periodontally diseased subjects may be locally derived.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0765.1985.tb00447.x
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  • 4
    Electronic Resource
    Electronic Resource
    Immune properties of glucosyltransferases from S. sobrinus (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral pathology & medicine 17 (1988), S. 0 
    Details
    ISSN: 1600-0714
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: GTF activity was separated into water-insoluble (GTF-I) and water-soluble (GTF-S) polyglucan-synthesizing enzymes. Each preparation demonstrated a single band on 6% SDS PAGE. Only water-insoluble or water-soluble polyglucan was synthesized by the respective enzyme preparation. Rats were immunized, on Days 1 and 14, with either GTF-I or GTF-S in adjuvant. Animals were bled 13, 35 and 54 days after the initial immunization. Individual antisera were tested against either the GTF-I or the GTF-S for inhibition of radioactive glucose incorporation into glucan, and in gel diffusion, and by Western transfer analyses. The respective antisera reacted with the homologous, but not the heterologous enzyme in gel diffusion and Western transfer. GTF-I activity was not inhibited by antibody to GTF-S, but antibody to GTF-I inhibited GTF-I by 68%. GTF-S was inhibited by more than 60% by each of 3 anti-GTF-S sera. Only one anti-GTF-I serum inhibited GTF-S at as much as a modest 30% level. These data support the antigenic and functional distinctiveness of the GTF enzymes of S. sobrinus 6715.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0714.1988.tb01317.x
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  • 5
    Electronic Resource
    Electronic Resource
    Serological classification of Bacteroides from the human oral cavity (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of periodontal research 23 (1988), S. 0 
    Details
    ISSN: 1600-0765
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Studies were initiated to investigate the antigenic relationship among oral species of Bacteroides. Antigenic differences among the Bacteroides were assessed with an ELISA using antisera from immunized rabbits and sera obtained from subjects with periodontal disease. Multiple species of Bacteroides were examined, including: B. gingivalis, 2 homology groups of B. intermedius, B. melaninogenicus, B. denticola, B. loescheii, B. oralis, B. levii, B. gracilis, B. buccae. and B. corporis. Both rabbit and human sera reacted with distinct surface antigenic determinants in each of the species of Bacteroides. Additional relationships were defined, such that the 2 homology groups of B. intermedius exhibited a similarity of approximately 30–40%, while the B. melaninogenicus and B. loescheii showed a 20–25% similarity of surface antigens. B. denticola was antigenically related to the B. intermedius and B. melaninogenicus strains by 10–15%. The remaining cross-reactivities were generally less than 5% among the Bacteroides species. The findings are consistent with specific surface antigenic determinants on the oral Bacteroides spp. and suggest the ability to detect specific responses to these organisms in periodontal disease patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0765.1988.tb01022.x
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  • 6
    Electronic Resource
    Electronic Resource
    The imaging of individual cation columns in f.c.c. mixed alloy systems (1986)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 42 (1986), S. 39-43 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108768186098610
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  • 7
    Electronic Resource
    Electronic Resource
    The present and future of high-resolution electron microscopy (1987)
    [S.l.] : International Union of Crystallography (IUCr)
    Acta crystallographica 43 (1987), S. 737-751 
    Details
    ISSN: 1600-5724
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: High-resolution electron microscopy, with the current resolution limits of better than 2 Å, has been proven to be a valuable technique for the study of radiation-resistant crystals, allowing the determination of the structures of perfect crystal regions, crystal defects and crystal surfaces with atomic resolution. As the resolution is improved, however, the image contrast is increasingly determined by dynamical diffraction effects and it is increasingly sensitive to the instrumental parameters and to the geometry and alignment of the specimen. For both the conventional transmission electron microscope and the scanning transmission electron microscope, further developments should lead to better or more versatile performance, up to the limits set by the fundamental problems of radiation damage. Major advances may be expected from developments of the associated techniques of microanalysis and microdiffraction. Applications of particular interest will include studies of surfaces and interfaces, small particles and radiation-induced chemical reactions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S010876738709857X
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  • 8
    Electronic Resource
    Electronic Resource
    Clinical, microbiological and immunological features of subjects with destructive periodontal diseases (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of clinical periodontology 15 (1988), S. 0 
    Details
    ISSN: 1600-051X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract 76 subjects with prior evidence of destructive periodontal diseases were monitored clinically and immunologically every 2 months for up to 5 years. Clinical parameters measured included bleeding on probing, gingival redness. plaque accumulation, suppuration, pocket depth and attachment level. Blood samples were taken by venipuncture and serum antibody levels to a series of 18 subgingival species determined. 33 of these subjects showed evidence of active disease during the monitoring period, based on changes in attachment level measurements assessed using the tolerance method of analysis. Mean attachment loss in these 33 subjects varied from 1.4 mm to 9.0 (median value 3.4 mm) and subjects whose mean attachment level was above the median showed a higher % of pockets 〉 3 mm and more suppuration. Severity of gingival inflammation related poorly to mean attachment loss. Subgingival plaque samples were taken from the active site(s) and from control sites of equal pocket depth and attachment loss in the same active disease subjects, prior to therapy, for predominant cultivable microbiota studies. 50 randomly selected isolates were identified from each sample. Predominant cultivable species in 170 pretreatment active and inactive sites combined (8500 isolates) were enumerated. The most frequently detected species were F. nucleatum (112 sites) and S. intermedius (106 sites), although the predominant species in the samples from each subject differed. The distribution of putative pathogens differed among subjects. For example. A. actinomycetemcomitans was found in 21 samples in 11 subjects and B. forsythus was found in 18 samples from 10 individuals. Antibody response patterns to the 18 subgingival species also varied among subjects. More than 81% (26/32) of the subjects demonstrated a mean elevated serum antibody level to at least 1 micro-organism, while I subject showed an elevated response to 5 species. No pattern(s) of elevated antibody response(s) could be related to severity of attachment loss. Collectively, the data suggest that clinically, immunologically and microbiologically distinctive destructive periodontal diseases exist, and appropriate classifications could be devised.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-051X.1988.tb01577.x
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  • 9
    Electronic Resource
    Electronic Resource
    A tem microstructural study of dolomite with curved faces (saddle dolomite) (1985)
    Springer
    Contributions to mineralogy and petrology 91 (1985), S. 82-92 
    Details
    ISSN: 1432-0967
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract Electron diffraction, analytical electron microscopy, and high voltage, high resolution electron microscopy have been used to investigate crystal defects in calcium-rich saddle dolomites having pronounced curvature of the faces. Results show that branching, ribbon-like defects in these so-called ‘saddle dolomites’ are thin, coherent laths of calcitic material. The ribbons are profuse and explain the characteristic calcium excess found in most saddle dolomites. Because the lattice spacings of calcite are between 3.8% and 6.7% larger than the corresponding lattice spacings of dolomite, a calcitic ribbon causes local distortion of the host dolomite. The branching ribbons have a predominant {10¯14} orientation and are generally present in high density. They may represent the source of crystal distortion that ultimately manifests itself on the macroscopic scale. The calcitic ribbons form during growth from aqueous solution, although they have features in common with similar defects found in carbonatite carbonates. This fine-scale intergrowth microstructure may be a variant of even finer-scale modulated structures found in other sedimentary calcian dolomites.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00429430
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  • 10
    Electronic Resource
    Electronic Resource
    Synthesis of the peptide-transport carrier of barley scutellum during the early stages of germination (1985)
    Springer
    Planta 164 (1985), S. 550-556 
    Details
    ISSN: 1432-2048
    Keywords: Germination (seed) ; Hordeum (peptide transport) ; Peptide transport ; Protein synthesis ; Scutellum ; Seed germination ; Thiol group
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Development of peptide-transport activity in the scutella of isolated barley (Hordeum vulgare l. cv. Maris Otter, Winter) embryos is shown to increase rapidly after about 15 h of imbibition, with the bulk of the transport activity being expressed by 24 h. This development is prevented by treatment of 15 h embryos with cycloheximide. Protein synthesis is found to increase in a closely related manner and also to be abolished by cycloheximide. Measurement of the incorporation of bound [35S]methionine by 15 to 21-h embryos indicates that de-novo protein synthesis during this period is greater in the scutellum than in the embryonic axis. Previous studies have shown that the peptide-transport system possesses essential dithiol groups, probably located at the substrate-binding site (Walker-Smith and Payne 1983 b, 1984b). Treatment of 15-h embryos with the non-penetrant thiol reagent p-chloromercuribenzene sulphonic acid did not affect development of peptide-transport activity during the following 6 h, whereas with 3-d embryos identical treatment inhibited uptake almost completely during a subsequent 6-h period. Radioautography revealed that amongst the proteins synthesised during this early phase of germination and labelled in vitro with [35S]methionine some are found within the epithelial plasmalemmae of the scutellum, which is the location of the peptide-transport carrier identified previously by externally labelling with a radioactive thiol reagent. The results provide evidence that protein(s) of the peptide-transport system are synthesised and inserted into the scutellum during early germination, allowing the system to play a major role in the nitrogen nutrition of the embryo.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00395974
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