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  • 2005-2009
  • 1985-1989  (7)
  • 1965-1969
  • 1989  (7)
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  • 2005-2009
  • 1985-1989  (7)
  • 1965-1969
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Measurement of bunch lengthening in TERAS : International conference on synchrotron radiation instrumentation (SRI−88) (1989)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 60 (1989), S. 1748-1751 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The bunch length was measured by using a highly sensitive streak camera with a time resolution of 2 ps. It was found that fine structures appeared in the electron bunch shape and that the shapes of electron bunches were described by a Gaussian distribution on the average. The dependence of bunch length on beam current was measured for an electron beam of 607 MeV. The bunch length was well represented by a power function of beam current with an exponent of 0.197 at currents lower than 35 mA or 0.30 at high currents. The experimental results suggest that the longitudinal coupled-bunch beam instability takes place at low beam currents and the turbulent instability dominates at high currents. It was also found from the three-dimensional bunch shape measurements that the bunch shape tended to blow up at high currents.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1140945
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Inhibitory effects of rabbit antisera on mitogenic activity of Actinobacillus actinomycetemcomitans lipopolysaccharide (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of periodontal research 24 (1989), S. 0 
    Details
    ISSN: 1600-0765
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Lipopolysaccharides (LPSs) were isolated from Actinobacillus actinomycetemcomitans strains ATCC 29523 (serotype a), Y4 (b), and NCTC 9710 (c) by the hot phenol-water procedure. Y4 lipid A was obtained by the hydrolysis of Y4 LPS in 1 % acetic acid. All the LPS preparations and Y4 lipid A were mitogenic for C3H/HeN mouse spleen cells, but not for C3H/HeJ mouse spleen cells. Immuno-globulin preparations partially purified by ammonium sulfate precipitation at 33% saturation from rabbit antisera against Y4 whole cells inhibited the mitogenic response of C3H/HeN mouse spleen cells to LPSs from all the strains of A. actinomycetemcomitans and Y4 lipid A. Anti-Y4 LPS immunoglobulin preparation inhibited the mitogenic acuvity of Y4 LPS and Y4 lipid A. Furthermore, anti-Y4 whole cell Fab fragments inhibited the mitogenic activity of both Y4 LPS and Y4 lipid A. These results suggest that antibodies against A. actinomycetemcomitans LPS may modify immune responses of lymphocytes to this organism at periodontal sites.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0765.1989.tb02001.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Aspartic acid at position 57 of DQβ chain does not protect against Type 1 (insulin-dependent) diabetes mellitus in Japanese subjects (1989)
    Springer
    Diabetologia 32 (1989), S. 762-764 
    Details
    ISSN: 1432-0428
    Keywords: Type 1 (insulin-dependent) diabetes mellitus ; HLA-DR ; HLA-DQ ; polymerase chain reaction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary HLA DQβ chain, in particular amino acid at position 57, has been reported to contribute to susceptibility and resistance to Type 1 (insulin-dependent) diabetes mellitus in Caucasians. Resistance has been proposed to be conferred by aspartic acid at this position. To ascertain the association of HLA DQβ and DRβ genes with Type 1 diabetes in Japanese subjects, ten Japanese Type 1 diabetic patients were investigated at DNA level. Genomic DNA was amplified by polymerase chain reaction, and dot blot analysis was carried out using the amplified DNA with allele specific oligonucleotide probes. All patients had aspartic acid at position 57 of at least one of their two DQβ chains, and there was no significant difference of amino acids at the same position of DRβ chain in patients compared to control subjects. These data indicate that the protective role of aspartic acid at position 57 of DQβ chain is less significant in Japanese compared with Caucasian subjects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00274539
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Changes in microflora of a puffer fish Fugu niphobles, with different water temperatures (1989)
    Springer
    Marine biology 101 (1989), S. 299-304 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Grass puffer Fugu niphobles, captured in November 1986 at Shimoda, Japan, and then reared at different temperatures ranging from 10 to 29°C, was examined for microflora changes in the skin, gill and intestines. At 10°C, the skin and gill were colonized mainly by Pseudomonas, Flavobacterium and Moraxella, while at 29°C Vibrio and Flavobacterium appeared abundantly. The intestinal microflora, consisting of Vibrio, Pseudomonas and Flavobacterium, revealed little temperature dependence, although the intrageneric composition of Vibrio changed conspicuously depending on the change of water temperature. Vibrio group 1, tentatively identified as V. alginolyticus, was detected in all tissues examined at 20 and 29°C. This, along with the fact that V. alginolyticus produces tetrodotoxin, suggests that the tetrodotoxin contained in puffer is, at least partly, accounted for by this bacterial species inhabiting intestines.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00428125
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Tetrodotoxin-producing bacteria from the blue-ringed octopus Octopus maculosus (1989)
    Springer
    Marine biology 100 (1989), S. 327-332 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Several live specimens of the blue-ringed octopus Octopus maculosus were collected from the Philippines in November 1985, and from Japan in February 1986, and the distribution of toxicity, along with toxin composition, in the posterior salivary gland and other soft parts were examined. Tetrodotoxin (TTX: 1400 mouse units g-1) was detected in the posterior salivary gland of a Japanese specimen, while not only the salivary gland but other soft parts were toxic in the Philippine specimens. The Philippine specimens contained TTX and anhydrotetrodotoxin, the Japanese specimen TTX, 4-epitetrodotoxin, and an unknown toxin. The posterior salivary gland, intestine and other parts were excised from the Philippine specimens and examined for bacterial flora. Twenty-two dominant strains were isolated and cultured in a 2xORI medium (Ocean Research Institute, Simidu and Tsukamoto 1985) at 20°C for 20 to 48 h. Cells were harvested by centrifugation, and disrupted by ultrasonication. The toxins were partially purified from the cell lyzate by ultrafiltration and Bio-Gel P-2 column-chromatography. Instrumental analyses disclosed that 16 of the 22 strains produced TTX and/or related substances. Six strains which clearly exhibited TTX productivity were identified as Alteromonas (2 strains), Bacillus (2), Pseudomonas (1) and Vibrio (1), based on biochemical and biological characteristics. Of these, one strain each of Bacillus and Pseudomonas produced TTX at a level detectable by the mouse assay.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00391147
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Mechanical structure of JNLT (1989)
    Springer
    Astrophysics and space science 160 (1989), S. 165-172 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The Japanese National Large Telescope (JNLT) requires mechanical performance of high tracking accuracy to achieve good image quality and a mechanical configuration to provide several kinds of focus modes. Under these requirements, a conceptual design for the JNLT mechanical structure has been performed. This paper presents the results of the conceptual design currently under consideration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00642767
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  • 7
    Electronic Resource
    Electronic Resource
    Dome design of JNLT (1989)
    Springer
    Astrophysics and space science 160 (1989), S. 173-181 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In recent years, it has become increasingly clear that the dome is often itself a major source of seeing degradation, due to its adverse thermal properties. In order to enable the Japanese National Large Telescope (JNLT) to attain the highest image quality as a ground-based telescope, 0.1″ r.m.s. on 80% light energy diameter basis is budgeted to the dome-induced seeing degradation as a design goal. Feasibility of this goal has been studied, using the latest design concept of the dome, in the following manner. - Model the JNLT dome on the latest design plan for dynamic thermal analysis. - Perform the dynamic thermal analysis to attain temperature distribution in the dome. - Predict the seeing degradation induced by the dome using the thermal analysis result. Although this study is just on an elementary level, the result indicates that our design goal is attainable on an extension of the current design concept and the dome cooling by thermal emission is a key factor we have to overcome to minimize the dome-induced seeing degradation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00642768
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    Paper (German National Licenses)
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