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  • Polymer and Materials Science  (7)
  • Magnetic resonance imaging  (3)
  • Wheat  (3)
  • Andosol  (2)
  • 1
    Electronic Resource
    Electronic Resource
    MRI detection of ruptured malignant teratoma in the third ventricle (1993)
    Springer
    Neuroradiology 35 (1993), S. 254-255 
    Details
    ISSN: 1432-1920
    Keywords: Third ventricle ; Teratoma ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We describe a case in which CT and MRI showed evidence of intraventricular fat, which proved to have come from a ruptured malignant teratoma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00602605
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  • 2
    Electronic Resource
    Electronic Resource
    Osteochondroma of the skull base: MRI and histological correlation (1996)
    Springer
    Neuroradiology 38 (1996), S. 41-43 
    Details
    ISSN: 1432-1920
    Keywords: Osteochondroma ; Skull base ; Computed tomography ; Magnetic resonance imaging ; Fat suppression
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A skull base osteochondroma (benign exostosis) in a 38-year-old man is reported. MRI was not only very useful for determining the extent of the tumour, but also showed its fat content and, on contrast-enhanced fat-suppressed images, its vascularity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00593215
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  • 3
    Electronic Resource
    Electronic Resource
    Osteochondroma of the skull base: MRI and histological correlation (1995)
    Springer
    Neuroradiology 38 (1995), S. 41-43 
    Details
    ISSN: 1432-1920
    Keywords: Key words Osteochondroma ; Skull base ; Computed tomography ; Magnetic resonance imaging ; Fat suppression
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A skull base osteochondroma (benign exostosis) in a 38-year-old man is reported. MRI was not only very useful for determining the extent of the tumour, but also showed its fat content and, on contrast-enhanced fat-suppressed images, its vascularity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00593215
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Fluctuations in bacterial populations on the root surface of wheat (Triticum aestivum L.) grown under different soil conditions (1992)
    Springer
    Biology and fertility of soils 14 (1992), S. 246-252 
    Details
    ISSN: 1432-0789
    Keywords: Volcanic ash soil ; Fluorescent pseudomonads ; Rhizosphere ; Wheat ; Bacterial groups ; Phosphate fertilizer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Populations of several bacterial groups on the root surface of wheat and in root-free soil were investigated in volcanic ash soil and non-volcanic ash soil throughout a series of predetermined intervals. Over time, the populations changed similarly both on the root surface and in root-free soil. The numbers of total bacteria, fluorescent Pseudomonas spp., phosphate-solubilizing bacteria, and NH inf+ sup4 -oxidizing bacteria, were consistently lower in the plots with volcanic ash soil than with nonvolcanic ash soil, but the numbers of cellulose-decomposing bacteria were opposite to those of the other groups. Superphosphate application improved the growth of wheat in the volvanic ash soil. It did not, however, bring about any significant changes in the bacterial populations among the volcanic ash soils supplemented with three different levels of superphosphate, though there were some variations with plant age.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00395459
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  • 5
    Electronic Resource
    Electronic Resource
    Survival of inoculant Bradyrhizobium japonicum in an Andosol (1996)
    Springer
    Biology and fertility of soils 23 (1996), S. 105-109 
    Details
    ISSN: 1432-0789
    Keywords: Introduced Bradyrhizobium japonicum ; Survival ; Andosol ; Fluvisol ; Antibiotic resistance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The survival of an antibiotic-resistant mutant of a commercial inoculant Bradyrhizobium japonicum strain, A1017ks, was studied in a volcanic ash soil (Andosol) in comparison with a non-volcanic ash soil (Fluvisol) over a period of 84 days. In a non-sterile soil system, the population decline in the Andosol (15% or 1.2 log units) was larger than in the Fluvisol (6% or 0.54 log units). In both soils, however, the inoculant bradyrhizobium survived at fairly high population levels after the period of incubation [106 and 107 colony-forming units (CFU) g-1 dry soil in the Andosol and Fluvisol, respectively]. In sterile control soil, viable bradyrhizobium cells could not be detected after 1 week of incubation in the Andosol, whereas in the Fluvisol population of introduced bradyrhizobium was maintained throughout the period of incubation. Overall changes in the population of indigenous bacteria and fungi were also monitored. However, no clear pattern of interaction between the inoculant Bradyrhizobium japonicum and the indigenous microbes could be identified. The antibiotic-resistant mutant maintained its resistance in the Fluvisol throughout the 3-month period of incubation, making it a useful model for conducting ecological studies in the soil.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00336048
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  • 6
    Electronic Resource
    Electronic Resource
    Survival of inoculant Bradyrhizobium japonicum in an Andosol (1996)
    Springer
    Biology and fertility of soils 23 (1996), S. 105-109 
    Details
    ISSN: 1432-0789
    Keywords: Key words Introduced Bradyrhizobium japonicum ; Survival ; Andosol ; Fluvisol ; Antibiotic resistance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The survival of an antibiotic-resistant mutant of a commercial inoculant Bradyrhizobium japonicum strain, A1017ks, was studied in a volcanic ash soil (Andosol) in comparison with a non-volcanic ash soil (Fluvisol) over a period of 84 days. In a non-sterile soil system, the population decline in the Andosol (15% or 1.2 log units) was larger than in the Fluvisol (6% or 0.54 log units). In both soils, however, the inoculant bradyrhizobium survived at fairly high population levels after the period of incubation [106 and 107 colony-forming units (CFU) g–1 dry soil in the Andosol and Fluvisol, respectively]. In sterile control soil, viable bradyrhizobium cells could not be detected after 1 week of incubation in the Andosol, whereas in the Fluvisol population of introduced bradyrhizobium was maintained throughout the period of incubation. Overall changes in the population of indigenous bacteria and fungi were also monitored. However, no clear pattern of interaction between the inoculant Bradyrhizobium japonicum and the indigenous microbes could be identified. The antibiotic-resistant mutant maintained its resistance in the Fluvisol throughout the 3-month period of incubation, making it a useful model for conducting ecological studies in the soil.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00336048
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  • 7
    Electronic Resource
    Electronic Resource
    Gram-negative bacterial flora on the root surface of wheat (Triticum aestivum) grown under different soil conditions (1996)
    Springer
    Biology and fertility of soils 23 (1996), S. 273-281 
    Details
    ISSN: 1432-0789
    Keywords: Wheat ; Triticum aestivum ; Rhizosphere ; Soil microflora ; Gram-negative bacteria ; API 20 NE ; Flavobacterium spp ; Cytophaga
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract We identified 161 Gram-negative bacterial strains isolated from the root surface of wheat grown under different soil conditions. The strains were divided into seven groups based on major morphological and physiological properties. Taxonomic allocation of the groups was verified by guanine+cytosine contents of DNA. Except for one group, which may be assumed to include bacteria belonging to the genera Flavobacterium and Cytophaga, the various groups were taxonomically united. The distribution of the groups changed with soil improvement. Pseudomonads predominated in unimproved soil, but Flavobacterium and Cytophaga spp. were predominant in the most improved soil. As all the strains were non-fermentative by Hugh and Leifson's test, API 20NE identification was applied. However, many strains were misidentified by this system, especially in the Flavobacterium and Cytophaga spp. group. For ecological studies, the strains were classified to species level by the API 20 NE system and by the results of a combination of guanine+cytosine (mol%) and isoprenoid quinone data. The pattern of distribution of the bacteria on the root surface of wheat varied at species level within one genus depending on soil conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00335955
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  • 8
    Electronic Resource
    Electronic Resource
    Gram-positive bacterial flora on the root surface of wheat (Triticum aestivum L.) grown under different soil conditions (1996)
    Springer
    Biology and fertility of soils 23 (1996), S. 121-125 
    Details
    ISSN: 1432-0789
    Keywords: Wheat ; Rhizosphere ; Soil Microflora ; Gram-positive Bacteria ; Coryneform Bacteria ; Arthrobacter spp. ; Mol% G+C ; Diaminopimelic acid ; DAP
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract We identified 108 Gram-positive bacterial strains isolated from the root surface of wheat grown under different soil conditions. The strains were divided into four groups based on morphological and physiological characteristics, but most appeared to be coryneform. The taxonomic position of the various groups was verified by the guanine+cytosine DNA contents of the strains. In general, the ranges of these values agreed with those described for the respective taxonomic positions in the literature, with a few exceptions. With soil improvement the distribution of the various groups on the root surface changed, with the coryneform group becoming dominant. This group was further divided into five subgroups, according to cell wall components, cellulose-decomposition, and morphological characteristics, and were identified to genus level. The distribution of these subgroups on the root surface of wheat did not alter with soil improvement. The genus Arthrobacter, the dominant subgroup, predominated in every plot.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00336051
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  • 9
    Electronic Resource
    Electronic Resource
    Falling coaxial cylinder viscometer for polymer solutions (1976)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 20 (1976), S. 1467-1473 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: A simple, inexpensive glass viscometer can be constructed to time the rate at which a rod falls into a liquid held in a concentric closed-end glass cylinder. This equipment can be used to measure absolute values of apparent viscosities of Newtonian and non-Newtonian fluids. Calibration is not required. The technique is an adaptation of a method used previously with polymer melts at elevated temperatures. The present article describes the modifications needed for lower-viscosity fluids, such as paints, and validates the flow analysis with results of study of a characterized Newtonian fluid.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1976.070200605
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  • 10
    Electronic Resource
    Electronic Resource
    Osteogenic cell cytotoxicity and biomechanical strength of the new ceramic Diopside (1997)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Biomedical Materials Research 37 (1997), S. 100-107 
    Details
    ISSN: 0021-9304
    Keywords: Diopside ; biocompatibility ; osteogenic cell (MC3T3-E1) ; biomechanical strength ; apatite wollastonite-containing glass-ceramic (AWGC) ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine , Technology
    Notes: Diopside was prepared by sintering a powder compact composed of CaMgSi2O6 at 1573K for 2 h. In order to clarify the biocompatibility of Diopside, the cytotoxicity of Diopside against the osteogenic cell line MC3T3-E1 and the bone-Diopside interface strength were examined. On both the 14th and 21st days of incubation of MC3T3-E1 cells with Diopside, ALP activities were not significantly lower than those of the CTRL. TEM photographs of MC3T3-E1 on Diopside after 14 days of incubation showed active secretion of crystals from osteoblast-like cells. Scanning electron microscopic analysis showed that the cells on Diopside formed multiple cell layers similar to those on the CTRL both 14 and 21 days after incubation. These results showed that Diopside had no cytotoxic effect on MC3T3-E1. The pulling test showed that failure loads of Diopside were significantly lower than those of AWGC. Histologically, there was no fibrous tissue or foreign body reaction at the bone interface. SEM-EPMA showed that Diopside had attached to the bone via a calcium-phosphorus layer. SEM back-scattered electron imaging showed that the Diopside plate had degraded to a porous state 12 weeks after implantation. These findings indicate that Diopside is a biodegradable ceramic. © 1997 John Wiley & Sons, Inc. J Biomed Mater Res, 37, 100-107, 1997.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
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