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  • 1
    Electronic Resource
    Electronic Resource
    Cutaneous alternariosis in an immunocompetent patient: analysis of the internal transcribed spacer region of rDNA and Brm2 of isolated Alternaria alternata (2004)
    Oxford, UK : Blackwell Science Ltd
    British journal of dermatology 150 (2004), S. 0 
    Details
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.0007-0963.2004.05874.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Symbiosis of a termite and a sclerotium-forming fungus: Sclerotia mimic termite eggs (2000)
    Springer
    Ecological research 15 (2000), S. 405-414 
    Details
    ISSN: 1440-1703
    Keywords: egg recognition ; sclerotium ; subterranean termite ; symbiosis ; termite–fungus interaction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Brown balls, of a similar size but different shape to termite eggs, were found frequently in the piles of eggs of the subterranean termite Reticulitermes speratus. rDNA analysis identified the ball as the sclerotia of the fungus, Fibularhizoctonia sp. nov, which is phylogenetically closest to decay fungi, Athelia spp. Laboratory observation showed that the workers gathered the eggs and the sclerotia indiscriminately, even if they were widely scattered in a Petri dish, and piled them up in a specific place for egg care. We compared the morphology of the eggs with that of sclerotia of Fibularhizoctonia spp. and Athelia spp. in relation to egg carrying behaviour, and found that the workers could only carry the Fibularhizoctonia spp. sclerotia whose diameters were similar to the short diameter of the eggs. We also conducted a bioassay using termite eggs and dummy eggs (glass beads and sea sand) of two diameter-classes, coated with or without the egg-derived chemicals. The workers recognized the eggs based on a combination of the size, shape, and chemical cues. All the results suggested that the sclerotia mimic the eggs both morphologically and chemically. Finally, we found that the workers suppressed germination of sclerotia, and termite egg survival increased in the presence of sclerotia only if they were tended by the workers. If the workers were removed experimentally, the sclerotia germinated and grew by exploiting termite eggs. These results suggest that the sclerotia protect termite eggs from putative pathogens.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1440-1703.2000.00361.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    The effects of wood-fiber directions on acoustic emission in routing (2000)
    Springer
    Wood science and technology 34 (2000), S. 237-252 
    Details
    ISSN: 0043-7719
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The purpose of this study was to investigate the causes of changes in acoustic emission (AE) signals corresponding to changes in grain orientation in routing. Both the AE signals and the state of cutting process were recorded on high-speed video cameras in an attempt to clarify the relationships between them. Based on the results, it appeared that generated AE was closely related to the state of cutting, as well as the surface finish. The greater the AE, the more severe the cutting performance for inclination angles. The greatest AE was generated when machining failures – fuzzy grains – were produced. Concerning the annual ring angle, the AE count rate, lowest at 0 degrees, slightly increased until 75 degrees, and then rapidly reached its maximum at 90 degrees. Changes in the slope angle had also an effect on the AE signal. The AE count rate, highest at the 0 degrees, gradually decreased until 75–105 degrees, and then increased to reach its maximum at 180 degrees. Moreover, there were correlations between the AE count rate and surface roughness. Therefore, acoustic emission has shown promise for the monitoring of the surface roughness including various cutting conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002260000043
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    Paper (German National Licenses)
    Fulltext
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