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  • Springer  (16)
  • Oxford University Press  (2)
  • Blackwell Publishing Ltd  (1)
  • Geological Society of Japan  (1)
  • American Association for the Advancement of Science (AAAS)
  • BioMed Central
  • Wiley-Blackwell
  • 2020-2022
  • 1995-1999  (20)
  • 1970-1974
  • 1940-1944
  • 1997  (6)
  • 1996  (14)
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  • 2020-2022
  • 1995-1999  (20)
  • 1970-1974
  • 1940-1944
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  • 1
    Electronic Resource
    Electronic Resource
    Evaluation of three individual glucosyltransferases produced by Streptococcus mutans using monoclonal antibodies (1996)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 145 (1996), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract We previously established murine hybridomas producing a monoclonal antibody monospecific against three glucosyl-transferases (I, SI and S) of Streptococcus mutans which contribute to dental caries formation. Here, we developed a new immunochemical technique (cross-dot system) with which individual levels of glucosyltransferases expressed by S. mutans can be evaluated. We also examined glucosyltransferase production and in vitro artificial plaque formation by a reference strain and several clinical isolates of S. mutans. The findings indicate that the levels of glucosyltransferases produced greatly vary with the cells and the culture medium, and that the cells producing high levels of both glucosyltransferase-SI and glucosyltransferase-I enzymes may possess high in vitro artificial plaque forming ability. We suggest that the cross-dot system will be useful for estimating the cariogenic potential of S. mutans isolates.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.1996.tb08611.x
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  • 2
    Electronic Resource
    Electronic Resource
    Thermal analysis of powdered alumina materials (1997)
    Springer
    Journal of thermal analysis and calorimetry 49 (1997), S. 961-970 
    Details
    ISSN: 1572-8943
    Keywords: distribution constant ; DSC ; powder compact ; Rosin-Rammler particle size distribution ; thermal resistance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract How a DSC result is influenced by the particle size distribution of a powder sample is shown, and a simple and optimal method to be included in a routine DSC analysis (e.g., purity determination) to improve the reliability of the analysis is proposed. In case ofα-Al2O3 powder, most reliable heat capacity data can be obtained by preparing a powder with a self-similar particle size distribution with a distribution constant of 0.7, and by compressing it under a pressure of 1.5 MPa for a duration of 5 min or longer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01996782
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  • 3
    Electronic Resource
    Electronic Resource
    DSC of etched aluminum foils for use in electrolytic capacitors (1997)
    Springer
    Journal of thermal analysis and calorimetry 49 (1997), S. 1305-1314 
    Details
    ISSN: 1572-8943
    Keywords: DSC ; electrolytic capacitors ; etched Al foils ; thermal resistance ; transient state
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract A DSC method for evaluating the surface area of etched Al foils for use in high performance electrolytic capacitors is presented. A linear relationship between the etching degree (effective surface area) and the thermal resistance of the sample is obtained by means of DSC, based on the transient phenomenon. This method using the transient state in DSC measurement is not only novel, but also rapid and simple in evaluating the surface area of an etched aluminum foil. The method is effective even when the Al foil has a naturally oxidized surface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01983688
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  • 4
    Electronic Resource
    Electronic Resource
    Auto-navigation of a wheelchair (1997)
    Springer
    Artificial life and robotics 1 (1997), S. 141-146 
    Details
    ISSN: 1614-7456
    Keywords: Self-localization ; Wheelchair ; Obstacle avoidance ; Landmark ; Slit-laser
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract This paper presents an autonomous wheelchair system with the capability of self-localization and obstacle avoidance. In our system, the ceiling lights are chosen as landmarks to realize the self-localization of the wheelchair, and a laser range-finder is used for obstacle avoidance. First the approaches of landmark recognition and selflocalization for the wheelchair are proposed. Then the principle of obstacle avoidance using a laser range-finder is described. Finally, the total system of the wheelchair is introduced and a navigational experiment is described. Experimental results indicate the effectiveness of our system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02471129
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  • 5
    Electronic Resource
    Electronic Resource
    μSR studies of the low‐temperature magnetism in a valence‐fluctuation compound Sm3Se4 (1997)
    Springer
    Hyperfine interactions 104 (1997), S. 151-156 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract μ+SR measurements have been performed on a semiconducting valence‐fluctuation compound Sm3Se4 and its reference system Sm2Se3. The μ+SR data indicate the development of spin‐glass‐like magnetic order in Sm3Se4 at low temperatures, while no evidence for the onset of static or quasi‐static magnetism has been detected in Sm2Se3 down to \cong0.1 K. The results are discussed in connection with the previous specific‐heat measurements on Sm3Se4.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1012667507958
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  • 6
    Electronic Resource
    Electronic Resource
    Charge segregation in Yb4As3 observed using172Yb PAC probe (1996)
    Springer
    Hyperfine interactions 97-98 (1996), S. 125-132 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We present results of PAC measurements in heavy-fermion compound Yb4As3. The quadrupole hyperfine interaction has been investigated over the temperature range 78–850 K. The interpretation of the experimental data yields a microscopic proof of the existence of a charge-ordered state with periodic arrangement of Yb2+ and Yb3+ ions in the low temperature phase. In the high temperature phase all Yb ions are in a valence fluctuating state.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02150172
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  • 7
    Electronic Resource
    Electronic Resource
    Inhibitory effects of tunicamycin on cell-cell adhesion and cell reaggregation of the cellular slime mold,Polysphondylium pallidum (1996)
    Springer
    Journal of plant research 109 (1996), S. 193-199 
    Details
    ISSN: 1618-0860
    Keywords: Cell-cell adhesion ; Cellular slime mold ; Glycoprotein ; Polysphondylium pallidum ; Tunicamycin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract To assess the role in cell-cell adhesion of gp64, a putative cell-cell adhesion molecule ofPolysphondylium pallidum, we treated the cells with tunicamycin (TM), a known inhibitor of the synthesis of the N-linked oligosaccharide precursor, and examined TM's effect on cell-cell adhesion. The vegetative growth ofPolysphondylium cells was inhibited with TM in a dose-dependent manner. When cells were treated with TM (2.0 μg/ml) during only the first 4 hr of starvation and further starved for 8 hr without TM, the cells dissociated considerably, although even the growth phase cells ofPolysphondylium normally show EDTA-resistant (Ca2+-independent) cell adhesions. In parallel with the above effects, the amounts of intact gp64 decreased considerably in time with the lengths of incubation (0 hr〉4 hr 〉8 hr). When TM-treated cells were washed free of TM, and shaken for a further 12 hr, the cells began to aggregate again, accompanied by an increase of gp64. In conclusion, TM affected cell-cell adhesion ofPolysphondylium cells, but we were not able to distinguish whether the inhibition of cell aggregation was due to defects in glycosylation on glycoproteins and/or due to reduced levels of glycoproteins themselves.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02344545
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  • 8
    Electronic Resource
    Electronic Resource
    Food habits of sika deer on the Boso Peninsula, central japan (1996)
    Springer
    Ecological research 11 (1996), S. 89-95 
    Details
    ISSN: 1440-1703
    Keywords: age variation ; Cervus nippon ; food habits ; local variation ; point-frame methods ; sexual variation ; sika deer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The rumen contents of sika deer (Cervus nippon Temminck) on the Boso Peninsula, central Japan, were analyzed to identify local, sexual and age-specific differences in food habits. Graminoids and woody plants were the primary foods throughout the year. In winter, the use of evergreen broad leaves increased. The food habits of sika deer on Boso Peninsula were intermediate between those of populations inhabiting northern and southern Japan. Acorns, mainlyLithocarpus edulis Nakai, were consumed in fall and winter with a peak in October. Since the availability of acorns is not influenced by foraging in previous years, it can be regarded as a stable food supply and hence may be important for deer on the Boso Peninsula. The local difference between the Amatsukominato (AT) area, having a large plantation ofLithocarpus producing acrons, and the Kamogawa-Katsuura (KK) area, having a small plantation ofLithocarpus, was recognized; seeds and fruit were consumed more in AT than in KK in fall and winter. Males consumed more seeds and fruit than females at both sites in fall. This can be attributed to sexual differences in nutritional requirement.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02347823
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  • 9
    Electronic Resource
    Electronic Resource
    Stress disturbances arising from cut fibre and matrix in unidirectional metal matrix composites calculated by means of a modified shear lag analysis (1996)
    Springer
    Journal of materials science 31 (1996), S. 3861-3869 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract A useful method to calculate stress disturbances arising from cut fibres is the so-called shear lag analysis, in which it is assumed that fibres act to carry tensile stress without transferring applied stress to the matrix, and the matrix acts to transfer stress to the fibres without carrying tensile stress. This assumption gives a limit for application. In the present work, with unidirectional metal matrix composites in mind, the usual two-dimensional shear lag analysis was modified to express the situation where both fibres and matrix act to carry applied stress and also to transfer stress. By using this modified method, tensile strain concentration in the fibres and matrix adjacent to cut fibres and matrix, and shear stresses at the interface between fibres and matrix, were calculated for some examples.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00352803
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  • 10
    Electronic Resource
    Electronic Resource
    Reduction in energy release rate for mode I fracture of a fibre with a cracked coating layer due to small-scale interfacial debonding (1996)
    Springer
    Journal of materials science 31 (1996), S. 2027-2034 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract In order to predict the effect of small-scale interfacial debonding on the energy release rate at a crack tip for mode I fracture of a fibre with a cracked coating layer, an approximate calculation method has been presented. The relation of debonding length, thickness of the coating layer and ratio of elastic modulus of the coating layer to that of the fibre, to the energy release rate of the fibre was calculated for some examples. It was demonstrated that small-scale debonding reduces the energy release rate and, therefore, effectively prevents reduction in fibre strength.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00356622
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