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  • 1
    Electronic Resource
    Electronic Resource
    Clinical, microbiological and immunological studies on recurrent periodontal disease (1990)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of clinical periodontology 17 (1990), S. 0 
    Details
    ISSN: 1600-051X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract. The present study was performed to evaluate the clinical, microbiological and immunological aspects in the early stages of recurrent periodontal disease. After clinical monitoring of pockets with recent evidence of disease recurrence, microbiological samples for cultural analysis, serum and gingival crevicular fluid (GCF) samples were taken for IgG antibody analysis from 14 sites, 7 in 6 recurrent periodontitis patients and 7 in 7 periodontally healthy control subjects. IgG responses of serum antibody to 8 gram-negative bacterial strains were compared with those of GCF sampled from the recurrent site. The results clearly demonstrated the predominance of Bacteroides gingivalis in most subgingival plaque samples during the early stages of disease recurrence; the mean proportions of B. gingivalis were significantly different from those of the healthy sites (p〈0.05). 4 out of 6 serum samples showed the elevated antibody responses to B. gingivalis 381: and this was closely correlated to homologous infection by this micro-organism in recurrent sites. Elevated serum antibody responses were also noted to Eikenella corrodens 1073 and Actinobacillus actinomycetemcomitans Y4. However, no relationship with homologous infection was found for A. actinomycetemcomitans. 3 out of 6 GCF samples had greater antibody titers than the serum, suggesting local antibody synthesis by the gingival cells in the recurrent pockets. The present study showed that B. gingivalis might play an important role in the pathogenesis of disease recurrence in its early stages.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-051X.1990.tb02341.x
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  • 2
    Electronic Resource
    Electronic Resource
    The superconducting properties of YBa2Cu3O7−x-gold composites (1990)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 67 (1990), S. 915-917 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Gold powder was mixed with YBa2Cu3O7−x superconductors for the purpose of increasing the critical current density (Jc). The critical transition temperature at zero resistance (Tzeroc) gradually decreased by the Au addition. However, the depression of Tzeroc was as low as 2 K for the YBa2Cu3O7−x -Au composite with Au mixing up to 40 wt.%. A maximum Jc of 307 A/cm2 was obtained for the Au 5-wt. % mixed composite. The Jc was about four times as high as that for YBa2Cu3O7−x without Au mixing. In addition to the Jc enhancement, the weak-link problem was appreciably improved by the Au addition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.345753
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  • 3
    Electronic Resource
    Electronic Resource
    The combination of a depot gonadotrophin releasing hormone agonist and cyclical hormone replacement therapy for dysfunctional uterine bleeding (1991)
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 98 (1991), S. 0 
    Details
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Objective— To observe if a combination of a depot GnRH agonist and cyclical hormone replacement therapy decreases menstrual b od loss.Design— open, observational study comparing the objective assessment of menstrual blood loss before, during and after 3 months treatment.Subjects— 20 women with a subjective complaint of heavy menstrual loss in whom no cause could be discovered.Interventions— Each woman received 3 months of depot goserelin (Zoladex) combined with cyclical hormone replacement therapy (Cyclo-Progynova, 1 mg). Menstrual loss and symptoms were assessed before, throughout and after the study.Main outcome measures— Changes in objective and subjective assessments of menstrual blood loss and the acceptability of the treatment.Results— The median pretreatment menstrual loss was 68 ml (range 23–397). Only 8 (40%) of the patients had a loss exceeding 80 ml per period. The median blood loss was 30 ml, 16 ml, and 17 ml in the three treatment cycles (P 〈 0.001 Wilcoxon rank sum for the third cycle). There was a significant decrease in the median length of menstruation (P 〈 0.001) and the number of towels or tampons (P 〈 0.01) used per period in the third treatment cycle. There was a significant decrease (P 〈 0.005) in the number of women complaining of dysmenorrhoea, premenstrual symptoms, flooding and the passage of clots. Seventeen patients experienced hot flushes. Eighteen of the 20 patients were completely satisfied with the treatment and would have been happy to continue with it for longer than 12 months.Conclusions— The combination of a depot gonadotrophin releasing hormone agonist and cyclical hormone replacement therapy is a successful and acceptable treatment of dysfunctional uterine bleeding.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-0528.1991.tb15369.x
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  • 4
    Electronic Resource
    Electronic Resource
    Infection by Porphyromonas gingivalis and Actinobacillus actinomycetemcomitans, and antibody responses at different ages in humans (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of periodontal research 29 (1994), S. 0 
    Details
    ISSN: 1600-0765
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: This study examined the serum IgG and IgM responses against Porphyromonas gingivalis and 3 serotypes of Actinobacillus actinomycetemcomitans, and the correlations of these responses with age and homologous infection. A total of 90 individuals were included in this study: 40 subjects with gingivitis, 40 periodontally healthy subjects, and 10 adult periodontitis subjects. The subjects in the gingivitis and periodontally healthy groups were divided into 4 stages based on their physiological age: early childhood, school age, puberty, and adult. In the gingivitis group, there was a positive correlation between increase in age and increase in serum IgG antibody levels against P. gingivalis until puberty. However, no statistically significant difference was found between the puberty stage and the adult stage. The average level of IgG antibodies against A. actinomycetemcomitans in the school age gingivitis group was significantly higher than that in the early childhood gingivitis group for all serotypes (p 〈 0.01). In serotype c, IgG antibody levels in the school age gingivitis group were significantly higher than in the early childhood gingivitis group or the adult gingivitis group (p 〈 0.01). With both P. gingivalis and A. actinomycetemcomitans, positive correlations between elevated IgG level and infections by these microorganisms were found in the puberty gingivitis and adult periodontitis groups.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0765.1994.tb01085.x
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  • 5
    Electronic Resource
    Electronic Resource
    Shoot regeneration from spinach hypocotyl segments by short term treatment with 5,6-dichloro-indole-3-acetic acid (1992)
    Springer
    Plant cell reports 11 (1992), S. 58-61 
    Details
    ISSN: 1432-203X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Factors affecting shoot regeneration from hypocotyl segments of spinach (Spinacia oleracea L.) were investigated. When expiants were cultured on medium containing 10 mg/l IAA for 7 weeks, 3 out of 9 cultivars showed relatively high shoot regeneration response (15 – 35%). The other PGRs tested had no effect on shoot regeneration. However, the transfer of explants from auxin-containing medium to auxin-free medium 20 d after culture induced shoot formation from expiants cultured on media containing each of the auxin sources tested individually. By applying this short term auxin treatment, more than 80% shoot regeneration was obtained on medium containing 5–20 mg/l 5,6-Cl2-IAA, compared to less than 30% with 10–20 mg/l IAA treatment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00235253
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  • 6
    Electronic Resource
    Electronic Resource
    Superconducting properties of gold powder mixed Bi−Pb−Sr−Ca−Cu−O composites (1991)
    Springer
    The European physical journal 83 (1991), S. 327-331 
    Details
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Two kinds of Au powder having different particle size were mixed with a Bi−Pb−Sr−Ca−Cu−O superconductor, purpose being to improve the superconducting characteristics, especiallyJ c. By conventional Au powder addition,J c appreciably increased and a maximumJ c of 900 A/cm2 was obtained on the Au 30 wt% mixed composite. On the contrary,J c decreased by mixing with ultra fine Au powder. ThisJ c deterioration was predominantly ascribed to the formation of microcracks and poses by the segregation of Au ultra fine powder.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01313401
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  • 7
    Electronic Resource
    Electronic Resource
    Gene expression of tumour necrosis factor-α (TNF-α) and heat-shock protein (HSP) 70 in patients with BehÇet's disease (1993)
    Springer
    Archives of dermatological research 285 (1993), S. 505-508 
    Details
    ISSN: 1432-069X
    Keywords: Gene expression ; TNF-α ; HSP70 ; BehÇet's disease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00376825
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  • 8
    Electronic Resource
    Electronic Resource
    Magnetic torque of κ-(BEDT-TTF)2Cu(NCS)2 single crystals (1994)
    Springer
    Journal of superconductivity 7 (1994), S. 675-677 
    Details
    ISSN: 1572-9605
    Keywords: Organic superconductor ; anisotropic superconductor ; flux pinning ; lower critical fieldH c1;κ-(BEDT-TTF)2Cu(NCS)2 ; κ-(BEDT-TTF)2Cu(NCS)2
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract The magnetic torque ofκ-(BEDT-TFF)2Cu(NCS)2 was measured as a function of field directionθ with respect to thea *-axis under constant magnetic fields,H, up to 8 kOe in the temperature range from 1.3 to 8 K. A sharp cusp, C1, in the irreversible region was found atθ c1 near theH∥bc-plane between 1.3 and 7 K. In addition, extra cusps, C2 and C3, were observed atθ c2 andθ c3, respectively, between 2.5 and 6 K. At each temperature, the perpendicular component ofH giving each cusp is kept constant as $$H\cos \theta _{cn} = const \equiv H_{cp_n } (n = 1,2,3),$$ i.e., cusps C1, C2, and C3 are ruled by the characteristic field perpendicular to thebc-planeH cp1,H cp2, andH cp3, respectively. These behaviors are almost the same as those we found in the oxide superconductor Bi2Sr2CaCu2O8. These results suggest that the cusps are intrinsic for irreversible vortex states of these layered superconductors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00728484
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  • 9
    Electronic Resource
    Electronic Resource
    A new putative cellulose-synthesizing complex ofColeochaete scutata (1992)
    Springer
    Protoplasma 168 (1992), S. 51-63 
    Details
    ISSN: 1615-6102
    Keywords: Cellulose microfibril formation ; Chlorophyta ; Coleochaete scutata ; Freeze fracture ; Plasma membrane ; Terminal complex
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Cells of the charophycean alga,Coleochaete scutata active in cell wall formation were freeze fractured in the search for cellulose synthesizing complexes (TCs) since this alga is considered to be among the most advanced and a progenitor to land plant evolution. We have found a new TC which consists of two geometrically distinctive particle complexes complementary to one another in the plasma membrane and occasionally associated with microfibril impressions. In the E-fracture face is found a cluster of 8–50 closely packed particles, each with a diameter of 5–17 nm. Most of these particles are confined within an 80 nm circle. In the P-fracture face is found an 8-fold symmetrical arrangement of 10 nm particles circumferentially arranged around a 28 nm central particle. The TCs ofC. scutata are quite distinctive from the rosette/globule TCs of land plants. The 5.5×3.1 nm microfibril inC. scutata is also distinctive from the 3.5×3.5 nm microfibril typical of land plants. The phylogenetic implications of this unique TC in land plant evolution are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01332650
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  • 10
    Electronic Resource
    Electronic Resource
    Cellulose microfibril assembly inErythrocladia subintegra Rosenv.: An ideal system for understanding the relationship between synthesizing complexes (TCs) and microfibril crystallization (1994)
    Springer
    Protoplasma 180 (1994), S. 49-58 
    Details
    ISSN: 1615-6102
    Keywords: Erythrocladia subintegra ; Cellulose microfibrils ; Cellulosesynthesizing terminal complexes ; Terminal complex subunits
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The marine red algaErythrocladia subintegra synthesizes cellulose microfibrils as determined by CBH I-gold labelling, X-ray and electron diffraction analyses. The cellulose microfibrils are quite thin, ribbon-like structures, 1–1.5 nm in thickness (constant), and 10–33 nm in width (variable). Several laterally associated minicrystal components contribute to the variation in microfibrillar width. Electron diffraction analysis suggested a uniplanar orientation of the microfibrils with their (101) lattice planes parallel to the plasma membrane surface of the cell. The linear particle arrays bound in the plasma membrane and associated with microfibril impressions recently demonstrated inErythrocladia have been shown in this study to be the cellulose-synthesizing terminal complexes (TCs). The TCs appear to be organized by a repetition of transverse rows consisting of four TC subunits, rather than by four rows of longitudinallyarranged TC subunits. The number of transverse rows varied between 8–26, corresponding with variation in the length of the TCs and the width of the microfibrils. The spacings between the neighboring transverse rows are almost constant being 10.5–11.5 nm. Based on the knowledge thatAcetobacter, Vaucheria, andErythrocladia synthesize similar thin, ribbon-like cellulose microfibrils, the structural characteristics common to the organization of distinctive TCs occurring in these three organisms has been discussed, so that the mode of cellulose microfibril assembly patterns may be deciphered.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01379223
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