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  • 1
    Electronic Resource
    Electronic Resource
    Morphology and general characteristics of phages of chickpea rhizobia (1987)
    Springer
    Archives of microbiology 147 (1987), S. 121-125 
    Details
    ISSN: 1432-072X
    Keywords: Rhizobium ; Phages ; Morphology ; General characterization ; Seasonal incidence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Six rhizobiophages designated as RC1, RC2, RC3, RC4, RC5 and RC6, infective against six strains of chickpea Rhizobium were isolated from field soils. Seasonal incidence, morphology, host range and inactivation pattern of the phages to heat and UV-light were studied. Four investigated phages were differentiated into two morphological types; one with hexagonal head and a long flexible tail (RC1 and RC5), the other with hexagonal head and a very short tail (RC2 and RC3). Electron microscopic examination of phage RC1 infected cells revealed that phage multiplication occurred at one pole of the cell. Phage RC3 appeared to be more thermal sensitive than others and exhibited one component inactivation while relatively resistant phages (RC1 and RC2) revealed two component inactivation. The six phages could be grouped into two classes on the basis of UV sensitivity; relatively resistant (RC1, RC2 and RC5) and sensitive (RC3, RC4 and RC6).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00415272
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Isolation and characterization of a virus (RL 1) infective on Rhizobium leguminosarum (1978)
    Springer
    Archives of microbiology 119 (1978), S. 263-267 
    Details
    ISSN: 1432-072X
    Keywords: Rhizobium ; Virus ; Morphology ; One step growth ; General characterization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A virus (RL 1) that infects Rhizobium leguminosarum was isolated and studied. The virus has phagelike morphology; it has a hexagonal head and a long, flexible, noncontractile tail with a baseplate. The edgeto-edge diameter of head is 760 Å. The tail is 1515 Å long and 115 Å wide. RL 1 is stable at 4° C in distilled water, with only 20% loss in the titer after one month storage. It does not require any ion for stability, and is stable between pH 6.0 and 8.0. The virus is composed of two components; one is thermal sensitive and the other is relatively thermal resistant. Adsorption and ‘one step growth’ experiments under normal growth conditions showed a slow adsorption rate (0.82×10-9 cm3 min-1) followed by a 90 min latent period. The burst size was approximately 100 virus particles per cell.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00405405
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Morphology and general characteristics of viruses active against cowpeaRhizobium CB756 and 32H1 (1980)
    Springer
    Archives of virology 64 (1980), S. 17-24 
    Details
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Two newly isolated viruses, RS1 and RS2, infective on two strains of cowpeaRhizobium capable of N2-fixationin vitro, were characterized. RS1 parasitizes CB756 but RS2 infects both 32H1 and CB756. RS1 has an isometric, polyhedral head and a long contractile tail, while RS2 has an oblate, polyhedral head and a long flexible non-contractile tail; RS1 is considerably larger than RS2. The phages were relatively stable between pH 5 and 9 (1 hour incubation). RS1 appeared to be more thermal sensitive and exhibited one component inactivation, while RS2 showed two component inactivation at 58, 60 and 62° C. RS1 had a slower adsorption rate (3.3 × 10−10 ml minutes−1) than RS2 (1.2 × 10−9 ml minutes−1, on 32H1). The latent period of RS1 and RS2 was 180 and 225 minutes, and the burst size was 15 and 9 particles/cell, respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01317387
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Cuttability assessment of hard coal seams (1995)
    Springer
    Geotechnical and geological engineering 13 (1995), S. 63-78 
    Details
    ISSN: 1573-1529
    Keywords: Coal seam ; strength index ; cuttability ; specific energy ; coaling machine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Summary A number of field and laboratory tests have been carried out on more than 15 coal seams of compressive strengths ranging from 19 MPa to 44 MPa to evolve methods which would help in the selection of suitable coaling machines for hard coal seams. The effect of physico-mechanical properties on cuttability were studied in the laboratory for all these coal seams to identify the relevant parameters affecting the specific energy of coal cuttability. These data were subjected to regression analysis to find the best fit for estimation of laboratory specific energy of coal samples on the basis of simple laboratory and field tests for the strength parameters. Field studies were also conducted over a large number of active mechanized coal faces to study in situ cuttability along with the geo-mining conditions of the site. The field and the laboratory data so generated were correlated and an attempt is made to establish a relationship for estimating the field specific energy for a particular capacity of coaling machines by considering the geo-mining domain of the field in totality.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00421873
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Reconstruction of the anterior floor of the mouth with the inferiorly based nasolabial flap (2000)
    Springer
    European journal of plastic surgery 23 (2000), S. 200-203 
    Details
    ISSN: 1435-0130
    Keywords: Key words Nasolabial flap ; Intraoral reconstruction ; Floor of mouth ; Oral cancer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  The results of reconstruction of the anterior floor of the mouth, using 105 nasolabial flaps in 79 patients were reviewed in a retrospective study. Of those flaps, 82% healed uneventfully; flap survival was 95%. Considerable flap loss occurred in 5%. Primary dehiscence was observed in 5% of all flaps. This healed spontaneously with conservative therapy. In two cases (2%), an infection of the floor of the mouth required a reoperation: in one patient, a viable nasolabial flap had to be removed, and in the other case, the flap was maintained. Direct primary closure of an intraoral defect under tension should always be avoided. A lengthy and complex reconstruction is not always needed; the nasolabial flap is a safe and useful method for intraoral reconstruction. In case of small defects, it offers a fast and simple alternative to other pedicled flaps and free flaps.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002380050250
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    Paper (German National Licenses)
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