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  • 1
    Electronic Resource
    Electronic Resource
    Proton NMR relaxation study of molecular motion in poly(.gamma.-n-octadecyl L-glutamate) and poly(.gamma.-oleyl L-glutamate) (1990)
    s.l. : American Chemical Society
    Macromolecules 23 (1990), S. 4908-4911 
    Details
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ma00225a004
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  • 2
    Electronic Resource
    Electronic Resource
    Analysis and Design of Plasma Chemical Reactions Based on Quantum Chemical Methods (1993)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 140-142 (Oct. 1993), p. 17-24 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/00/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.140-142.17.pdf
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  • 3
    Electronic Resource
    Electronic Resource
    Source mechanism of a large scale gas outburst at Sunagawa Coal Mine in Japan (1989)
    Springer
    Pure and applied geophysics 129 (1989), S. 325-343 
    Details
    ISSN: 1420-9136
    Keywords: Source mechanism ; seismic moment tensor ; gas outburst ; Sunagawa Coal Mine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract On January 29ty, 1986, the third largest gas outburst in Japan took place at Sunagawa Coal Mine, which is the only hydraulic mine in Japan. It occurred at a face of a cross-cut, just after a coal seam was outcropped by blasting for drivage of the cross-cut. The site of the gas outburst was located 1,180 m below the surface. No workers were injured, but the cross-cut was plugged with 1,600 m3 of coal fragments extending over 100 m behind the face and 60,000 m3 of methane gas was emitted. The site of the gas outburst was investigated in detail to clarify the geological features. A normal and a reverse fault existed at the site. The area of the ejected zone was about 400 m2 and extended upward along the normal fault. The shape of the ejected zone suggests a great role of the normal fault on the gas outburst. Digital seismograms, recorded by a mine-wide seismic array at the coal mine, consisting of 27 microseismic events were used to investigate the gas outburst. Magnitude, seismic energy release, distribution of hypocenter and focal mechanism were analyzed. Taking the shape of the ejected zone together with results of the seismological investigation into consideration, it appears that the seismicity started with left-lateral faulting of the reverse fault and then right-lateral faulting of the normal fault followed. The faulting of the normal fault might be the direct cause and be the predominant mechanism of the gas outburst.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00874513
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  • 4
    Electronic Resource
    Electronic Resource
    Fine structure of psammoma bodies at the outer aspect of blood vessels in meningioma (1985)
    Springer
    Acta neuropathologica 66 (1985), S. 163-166 
    Details
    ISSN: 1432-0533
    Keywords: Meningioma ; Psammoma bodies ; Perivascular area ; X-ray microanalysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Psammoma bodies at the perivascular area in five cases of meningioma were examined with the electron microscope. In general, meningocytic cells invest the outer aspect of blood vessels, which are constituted by multilayered basal laminae, collagen fibers, microfibrils, and pericytes. Remnants of degenerated cells are observed in some areas of the perivascular space. Matrix vesicles and matrix giant bodies with or without mineralized deposits are also present in those areas. Energy disperisve, X-ray microanalysis evidenced the presence of both calcium and phosphorus (probably hydroxyapatite) mineralized precipitates. Production of psammoma bodies in the perivascular area may indicate that matrix vesicles and matrix giant bodies are derived from degenerated cells, which then sequestrate hydroxyapatite crystals to form psammoma bodies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00688693
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  • 5
    Electronic Resource
    Electronic Resource
    Central neurocytoma: immunohistochemical and ultrastructural study (1991)
    Springer
    Acta neuropathologica 81 (1991), S. 418-427 
    Details
    ISSN: 1432-0533
    Keywords: Neurocytoma ; Oligodendroglioma ; Synaptic vesicles ; Synaptophysin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Eight cases of central neurocytomas were studied by immunohistochemistry and electron microscopy. Seven tumors were located in the lateral ventricles and one in the subependymal region. All but one patient had a favorable postoperative course. The tumors were composed of small uniform cells possessing amitotic round nuclei with frequent perinuclear halos, a few Homer Wright rosettes and no ganglion cells; an appearance resembling that of oligodendroglioma. Immunohistochemical studies disclosed neuron-specific enolase and Leu-7 positivity in all tumors, S-100 protein-positive cells were found in six, while glial fibrillary acidic protein —and vimentin-positive cells were confined to the blood vessels. Myelin basic protein as well as neurofilament were not detected in the tumors. Synaptophysin-positive areas were seen in one tumor. Ultrastructural examination showed distinctive neuronal tumor cells which had a cytoplasm with sparse dense-core vesicles and thin cell processes containing parallel microtubules. They were classified into three different types of tumor cells according to the extent of differentiation. The most consistent finding for histological diagnosis was the presence of typical or abortive synapses with clear and dense-core vesicles. Additionally, synaptophysin may be a specific marker for some central neurocytomas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00293463
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  • 6
    Electronic Resource
    Electronic Resource
    Latent herpes simplex virus type 1 in human geniculate ganglia (1992)
    Springer
    Acta neuropathologica 84 (1992), S. 39-44 
    Details
    ISSN: 1432-0533
    Keywords: Herpes simplex virus ; Latent infection ; Human geniculate ganglion ; In situ hybridization ; Bell's palsy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Viral infection, especially by reactivation of herpes simplex virus (HSV) has been considered to be a possible explanation for the pathogenesis of idiopathic peripheral facial nerve palsy (Bell's palsy). We investigated whether the geniculate ganglia of man contain latent HSV type 1 (HSV-1), and compared the frequency of HSV-infected ganglia and that of latently infected neurons in human geniculate ganglia and in trigeminal ganglia. From autopsy specimens of eight adults 15 geniculate ganglia and 16 trigeminal ganglia were examined by means of in situ hybridization and immunohistochemical staining. The HSV-1 genome was detected in 11 of the 15 (71%) geniculate ganglia and in 13 of the 16 (81%) trigeminal ganglia. No HSV antigen was noted in any of the ganglia. The incidence of latently infected neurons was 0.9% in the trigeminal ganglia and 5.3% in the geniculate ganglia. The difference in percentages between the two types of ganglia was significant. Our results suggest that reactivation of latent HSV in the geniculate ganglia is a probable cause of some cases of herpetic stomatitis and of idiopathic peripheral facial nerve palsy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00427213
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  • 7
    Electronic Resource
    Electronic Resource
    Long survival in Fukuyama congenital muscular dystrophy: occurrence of neurofibrillary tangles in the nucleus basalis of meynert and locus ceruleus (1986)
    Springer
    Acta neuropathologica 71 (1986), S. 228-232 
    Details
    ISSN: 1432-0533
    Keywords: Alzheimer's disease ; Cerebral cortex abnormalities ; Muscular dystrophy, congenital ; Neurofibrillary tangles ; Paired helical filaments
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Three patients with Fukuyama congenital muscular dystrophy (FCMD), who died aged 23, 29 and 34 years, are reported. There was extensive brain malformation, but the most severe pattern of cortical dysplasia was absent in one case and in the other two localized bilaterally to small areas near the occipital poles. In two cases, numerous neurofibrillary tangles were observed in the locus ceruleus and nucleus basalis of Meynert. Electron microscopy revealed paired helical filaments, with a maximal width of about 25 nm and regular constrictions at approximately 80 nm intervals. The occurrence of neurofibrillary tangles, which is unknown in younger patients, suggests the presence of degenerative processes in the brains of the older patients with FCMD.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00688044
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  • 8
    Electronic Resource
    Electronic Resource
    Induction of glutathione S-transferase, placental type in T9 glioma cells by dibutyryladenosine 3′,5′-cyclic monophosphate and modification of its expression by naturally occurring isothiocyanates (1989)
    Springer
    Acta neuropathologica 79 (1989), S. 144-148 
    Details
    ISSN: 1432-0533
    Keywords: Glutathione S-transferase placental type ; T9 glioma cells ; Dibutyryladenosine 3′,5′-cyclic monophosphate ; Allylisothiocyanate ; Benzylisothiocyanate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effect of dibutyryladenosine 3′,5′-cyclic monophosphate (dibutyryl cAMP) on the expression of glutathione S-transferase placental type (GST-P) was examined in rat glioma cell line using an immunohistochemical technique. Cultured T9 glioma cells were negative for GST-P activity under normal conditions. However, treatment with 1 mM dibutyryl cAMP produced GST-P expression in about 50% of the cells, as well as some morphological changes. The expression of GST-P was increased with addition of dibutyryl cAMP together with 1 μg/ml allyl isothiocyanate (AITC) or 0.1 μg/ml benzyl isothiocyanate (BITC). With these combinated treatments, almost all cultured cells showed a strong positive reaction for GST-P, although AITC or BITC alone elicited GST-P in only 5% of the cultured cells. The results of the present study indicate that dibutyryl cAMP causes functional as well as morphological differentiation of T9 glioma cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00294371
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  • 9
    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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  • 10
    Electronic Resource
    Electronic Resource
    Degradation and metabolism of a fungicide, 2,4,5,6-tetra-chloroisophthalonitrile (TPN) in soil (1987)
    Springer
    Biology and fertility of soils 3 (1987), S. 205-209 
    Details
    ISSN: 1432-0789
    Keywords: Organochlorine pesticides ; 2,4,5,6-tetrachloroisophthalonitrile ; TPN ; Metabolism ; Soil conditions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Degradation of a fungicide, 2,4,5,6-tetrachloroisophthalonitrile (TPN) in soil was studied under laboratory conditions. TPN degraded more rapidly under 60% WHC conditions than at 20%, 40% and 100% WHC, while its degradation was rapid at temperatures of 25°C-30°C, evidently due to the microbial degradation. TPN degraded mainly through dechlorination and partly a substitution reaction. The degradation products identified by gas chromatographic analyses were: 2,4,5-trichloroisophthalonitrile (abbreviated as 2,4,5-Cl3-IPN), 2,4,6-Cl3-IPN, 2,4-Cl2-lPN, 2,5-Cl2-IPN, 4-Cl-IPN, 5-Cl-IPN, IPN, 2,5,6-Cl34-(OH)-IPN and 2,5,6-Cl3-4-(OCH3)-IPN. Peaks with longer retention times than that of TPN were not identified. Tentative degradation pathways were proposed on the basis of the identified degradation products. About 90% of the bacterial strains isolated from the soil to which TPN had been added degraded TPN, suggesting enrichment of the soil with TPN-degrading bacteria.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00640631
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