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  • 1
    Electronic Resource
    Electronic Resource
    Venoms from six species of marine fish: lethal and hemolytic activities and their neutralization by commercial stonefish antivenom (1989)
    Springer
    Marine biology 103 (1989), S. 285-289 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A specimen of the stonefish Synanceja verrucosa was captured in Okinawa in March 1988. Live specimens of the scorpionfish Inimicus japonicus were purchased from the Tokyo Central Wholesale Market in November 1988 and those of four species of zebrafish Pterois lumulata, P. volitans, P. antennata and Dendrochirus zebra from an aquarium in December 1988. Crude venoms were extracted from dorsal spines of the six species. All venoms exhibited lethal activity against mice and hemolytic activity specific for rabbit erythrocytes. The lethal activity (or hemolytic activity) of each venom was very unstable to freezing, lyophilization and heating. Both lethal and hemolytic activities of S. verrucosa venom were remarkably neutralized by the commerical stonefish (Synanceja trachynis) antivenom. This antivenom was also effective, to some extent, in counteracting the other venom activities. The neutralizing capacities of the antivenom were calculated to be 7310 LD50 ml-1 for S. verrucosa venom and 1 220 to 2 990 LD50 ml-1 for the other venoms. Results of neutralization tests suggest that venoms from the six species were comparable in terms of antigenecity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00397261
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Biodegradation of polyethylene glycol by symbiotic mixed culture (obligate mutualism) (1986)
    Springer
    Archives of microbiology 146 (1986), S. 125-129 
    Details
    ISSN: 1432-072X
    Keywords: Symbiotic mixed culture ; Obligate mutualism ; Biodegradation of polyethylene glycol ; Polyethylene glycol-utilizing mixed culture
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Neither Flavobacterium sp. nor Pseudomonas sp. grew on a polyethylene glycol (PEG) 6000 medium containing the culture filtrate of their mixed culture on PEG 6000. The two bacteria did not grow with a dialysis culture on a PEG 6000 medium. Flavobacterium sp. grew well on a dialysis culture containing a tetraethylene glycol medium supplemented with a small amount of PEG 6000 as an inducer, while poor growth of Pseudomonas sp. was observed. Three enzymes involved in the metabolism of PEG, PEG dehydrogenase, PEG-aldehyde dehydrogenase and PEG-carboxylate dehydrogenase (ether-cleaving) were present in the cells of Flavobacterium sp. The first two enzymes were not found in the cells of Pseudomonas sp. PEG 6000 was degraded neither by intact cells of Flavobacterium sp. nor by those of Pseudomonas sp., but it was degraded by their mixture. Glyoxylate, a metabolite liberated by the ether-cleaving enzyme, inhibited the growth of the mixed culture. The ether-cleaving enzyme was remarkably inhibited by glyoxylate. Glyoxylate was metabolized faster by Pseudomonas sp. than by Flavobacterium sp., and seemed to be a key material for the symbiosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00402338
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Raman scattering determination of carrier distribution in GaP diodes (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 64 (1988), S. 3067-3071 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Using a Raman microscope we have studied Raman scattering from plasmon-LO-phonon coupled modes in the cross section of GaP diodes. The line shape analysis of the coupled mode has provided the thermal-equilibrium carrier concentration and mobility. Their distribution is determined from the spatial variation of the spectra. The carrier distribution thus obtained is consistent with that estimated from capacitance measurements. The result demonstrates that the Raman microprobe is a powerful method for determining the distribution of the carrier concentration and mobility in semiconductor devices without electric measurements using electrodes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.342495
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Agmatine as a Potential Index for Freshness of Common Squid (Todarodes pacificus) (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 52 (1987), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Changes in amines (tyramine, putrescine, cadaverine, agmatine, and tryptamine) were examined in the muscle of common squid during storage at 0°C, 3.5°C, and 15°C. Agmatine appeared to be most useful as a potential index for freshness of common squid. Agmatine was detected in small amounts even in the fresh muscle and the concentration increased with storage time, exceeding 30 mg/100g at the stage of initial decomposition and reached the level of 40 mg/100g at the stage of advanced decomposition. Putrescine was detected in small amounts (less than 1 mg/100g) at the stage of initial decomposition and increased rapidly at the stage of advanced decomposition. This amine might be involved in the putrid smell. The pH values became higher at the stage of initial decomposition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1987.tb14247.x
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  • 5
    Electronic Resource
    Electronic Resource
    Common characteristics of mutant adenine phosphoribosyltransferases from four separate Japanese families with 2,8-dihydroxyadenine urolithiasis associated with partial enzyme deficiencies (1985)
    Springer
    Human genetics 〈Berlin〉 71 (1985), S. 171-176 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary 2,8-Dihydroxyadenine urolithiasis associated with partial deficiencies of adenine phosphoribosyltransferase (APRT) has been found only among Japanese families. All Caucasian patients with the same lithiasis are completely deficient in this enzyme. Partially purified APRT from one of the Japanese families with the lithiasis associated with a partial deficiency of APRT had a reduced affinity for 5-phosphoribosyl-1-pyrophosphate (PRPP). In the present investigations, we have shown that this characteristic is common in mutant enzymes from all the four separate Japanese urolithiasis families associated with partial APRT deficiencies so far tested. The mutant enzymes also had several other characteristics in common including increased resistance to heat in the absence of PRPP and reduced sensitivity to the stabilizing effect of PRPP. These data suggest that these families have a common mutant allele (APRT * J) at the APRT gene locus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00283377
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    Paper (German National Licenses)
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