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  • 1
    Electronic Resource
    Electronic Resource
    Spasmin-like proteins in various ciliates revealed by antibody to purified spasmins ofCarchesium polypinum (1988)
    Springer
    Cellular and molecular life sciences 44 (1988), S. 768-771 
    Details
    ISSN: 1420-9071
    Keywords: Spasmin-like proteins ; Carchesium ; Vorticella ; Stentor ; Spirostomum ; Blepharisma ; immunoblotting
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary It was found that some ciliates,Stentor, Spirostomum andBlepharisma, which can contract rapidly like the stalks of Vorticellidae, have Ca2+-binding proteins that are very similar to spasmins, in the immunological sense. The presence of spasmins in other Protozoa and in some Metazoa was also investigated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01959159
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  • 2
    Electronic Resource
    Electronic Resource
    Temperature dependence of ductility of copper polycrystals containing dispersed B2O3 particles (1989)
    Springer
    Journal of materials science 8 (1989), S. 1169-1171 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01730059
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  • 3
    Electronic Resource
    Electronic Resource
    Structural comparison between dimeric copper(II) formate and acetate in pyridine and urea adducts (1989)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 45 (1989), S. 377-380 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270188011904
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  • 4
    Electronic Resource
    Electronic Resource
    Host-handling behavior of the parasitoid,Diglyphus minoeus [Hym.: Eulophidae], parasitizing the honeysuckle leaf-miner,Phytomyza lonicerae [Dipt.: Agromyzidae] (1989)
    Springer
    BioControl 34 (1989), S. 503-509 
    Details
    ISSN: 1573-8248
    Keywords: Eulophidae ; Agromyzidae ; host-handling behavior ; host-feeding ; Eulophidae ; Agromyzidae ; comportement d'attouchement de l'hôte ; prise de nourriture sur l'hôte
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Résumé Le comportement d'attouchement de l'hôte d'une femelle individuelle deDiglyphys minoeus qui attaque la larve de la mineuse des feuillesPhytomyza lonicera comprend 4 types de comportement: l'exploration, l'insertion de la tarière, l'alimentation sur l'hôte et le repos. L'insertion de la tarière peut correspondre soit à l'injection de venin, soit à l'exploration de l'hôte par les sensilles de l'extrémité de la tarière, soit à la ponte. On peut distinguer 3 types d'attaques: l'attaque de ponte pour les larves non parasitées, l'attaque alimentaire pour les larves non parasitées et le rejet de l'hôte pour les larves hôtes antérieurement parasitées. L'attaque de ponte était caractérisée par une fréquente alternance entre exploration et insertion de la tarière, la longue durée de l'insertion de la tarière et le repos, et la longue durée de l'attouchement de l'hôte. Le comportement de repos protègerait la descendance contre le superparasitisme, la prise de nourriture par les autres hyménoptères ou l'élimination de la paralysie chez les hôtes. L'attaque alimentaire se caractérisait par une fréquente alternance entre la prise de nourriture et l'insertion de la tarière et la longue durée de l'alimentation. Le rejet de l'hôte se composait principalement d'exploration et d'insertion de la tarière et d'une courte durée d'attouchement.
    Notes: Abstract The host-handling behavior of individual female waspsDiglyphys minoeus which attack the larvae of the honeysuckle leaf-miner,Phytomyza lonicerae, include 4 types of behavior: probing, ovipositor insertion, host-feeding, and resting. Ovipositor insertion may either be injection of venom, probing of the host by the sensilla on the ovipositor's tip or egg laying. Three types of attacks were distinguished: oviposition attack for unparasitized larvae, host-feeding attack for unparasitized host larvae and host rejection for previously parasitized host larvae. Oviposition attack was characterized by frequent alternation between probing and ovipositor insertion, long duration of ovipositor insertion and resting, and the long duration of host-handling. Resting behavior is thought to protect the progeny against superparasitism, host-feeding by other wasps or hosts' recovery from paralysis. Host-feeding attack was characterized by frequent alternation between host-feeding and ovipositor insertion and long duration of host-feeding. Host rejection was composed mainly of probing and ovipositor insertion and short handling time.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02374388
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  • 5
    Electronic Resource
    Electronic Resource
    Low-temperature recovery of dispersion-hardened Cu-GeO2 alloy single crystals (1985)
    Springer
    Journal of materials science 4 (1985), S. 1504-1506 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00721378
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  • 6
    Electronic Resource
    Electronic Resource
    Chromosomal and genic structure of Brassicoraphanus related to seed fertility and the presentation of an instance of improvement of its fertility (1988)
    Springer
    Euphytica 39 (1988), S. 145-151 
    Details
    ISSN: 1573-5060
    Keywords: Brassicoraphanus ; amphidiploid ; euploid ; aneuploid ; chromosome number ; meiosis ; variation ; fertility
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary In order to elucidate the mechanism of low fertility of Brassicoraphanus, i.e., amphidiploids between Brassica japonica Sieb. and Raphanus sativus L., the chromosome number of 253 plants was studied during the 3rd–9th generations for their seed fertility. Meiotic irregularity showed no connection with degree of sterility. Brassicoraphanus consisted of euploids (2n=38), hyperploids (2n=39–43) and hypoploids (2n=34–37) with white or yellow flowers. The number of plants was highest in euploids and became lower as the chromosome number diverged from the euploid number. Further, seed fertility was highest and the range of its variation widest in euploids. The seed fertility of aneuploids became lower and its variation narrower in proportion to the number of chromosomes additional to or missing from the euploid number. Yellow-flowered plants were superior in seed fertility to white-flowered plants. Seed fertility of plants is primarily affected by their chromosome numbers and secondarily modified by genic effects. As a whole, seed fertility of Brassicoraphanus increased gradually and its variation widened with the advance of generations. This was explained mainly by the increase of balanced combinations of genes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00039867
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  • 7
    Electronic Resource
    Electronic Resource
    Effects of N-(2-mercaptopropionyl)glycine on ischemic-reperfused dog kidney in vivo and membrane preparation in vitro (1987)
    Springer
    Molecular and cellular biochemistry 78 (1987), S. 151-159 
    Details
    ISSN: 1573-4919
    Keywords: catalase ; Fe ; free radical ; hydrogen peroxide ; lipid peroxidation ; malondialdehyde ; mercaptopropionylglycine ; microsome ; Na ; K ; ATPase ; renal ischemia ; sulfhydryl ; superoxide dismutase ; thiol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract The results of our experiments demonstrated that one hour of ischemia followed by one hour of reflow in the kidney caused a reduction in (Na+K+)ATPase activity and microsomal sulfhydryl content as well as an increase in microsomal lipid peroxidation. Renal venous malondialdehyde concentration was increased soon after reperfusion of the ischemic kidney. All these changes were rectified by an infusion of 0.123 mmol N-(2-mercaptopropionyl)glycine/kg over a 70 min period. On the other hand, an in vitro addition of 0.01–0.5 mM N-(2-mercaptopropionyl)glycine to a membrane preparation in the presence of H202 and Fe3+ did not prevent but rather potentiated the free radical effect on the enzyme activity. However, addition of superoxide dismutase alone or with catalase together with 2-MPG were effective in preventing the enzyme depression induced by H202. The results therefore indicate that free radical generation participates in the evolution of ischemia/reperfusion cell injury and thiol-reducing agents may be beneficial in alleviating the cell damage in vivo.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00229689
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  • 8
    Electronic Resource
    Electronic Resource
    Das Korrosionsverhalten von pulvermetallurgischem ChromVortrag gehalten anläßlich der Dechema-Jahrestagung 1989, Frankfurt, 1. und 2. 6. 1989. (1989)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 40 (1989), S. 715-719 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Corrosion behaviour of powder metallurgically produced chromiumPowder metallurgically produced chromium of purity 99.96 percent can be processed into semifinished and finished parts of up to now restricted sizes. It is highly resistant to certain hot solutions of salts, hot carbonic acids, oxidizing anorganic acids, bases and gases (hot gases especially in combination with ashes and slags). It is shown in which fields and for what kind of functional parts pure chromium eventually could be used.
    Notes: Pulvermetallurgisch hergestelltes Chrom der Reinheit 99,96 kann zu Halbfertig- und Fertigprodukten von bisher allerdings nur begrenzter Größe geformt werden. Das Material ist hochbeständig gegen verschiedene heiße Salzlösungen, heiße Carbonsäuren, oxidierende anorganische Säuren, Basen und Gase (gegen Heiß- gase speziell in Verbindung mit Aschen und Schlacken). Es wird gezeigt, in welchen Gebieten und für welche Funktionsteile reines Chrom eventuell verwendet werden könnte.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19890401204
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  • 9
    Electronic Resource
    Electronic Resource
    Radiation induced exchange reaction between thallium(I) and thallium(III)—Comparison of sulfuric acid and perchiloric acid solution (1985)
    Springer
    Journal of radioanalytical and nuclear chemistry 92 (1985), S. 261-266 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The rate constant of radiation induced exchange reaction between thallium(I) and thallium(III) ions has been studied for elucidating the mechanisms which are responsible for (T1(II) intermediates or bridging groups (SO 4 2− ) in sulfuric acid and perchloric acid solutions. It was found that the radiation induced exchange reaction is accelerated by the sulfate ion, and the rate of the thallium(II)-thallium(I) reaction is faster than that of the thallium(II)-thallium(III) process in perchloric acid solution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02219755
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  • 10
    Electronic Resource
    Electronic Resource
    Diurnal appearance, fine structure, and chemical composition of fatty particles inHeterosigma akashiwo (Raphidophyceae) (1987)
    Springer
    Protoplasma 137 (1987), S. 134-139 
    Details
    ISSN: 1615-6102
    Keywords: Chemical composition ; Fatty particles ; Fine structure ; Heterosigma akashiwo ; Triacylglycerol ; Vertical migration
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary In cells ofHeterosigma akashiwo cultured under a photoperiod of 12∶12 L∶D, one or several fatty particles have appeared, grew in size approximately the second hour of the dark period, diminished in size from the tenth hour of the dark period, and completely disappeared by the seventh hour of the light period. The particles, usually located on the side of the nucleus away from the flagellar bases, were partially surrounded by endoplasmic reticulum, but not bounded by a membrane. Lipids comprised 80% of the isolated particles fraction, proteins only 1%. Triacyl-glycerol occupied 80% of the acyllipids in the lipid fraction. Tetradecanoic, hexadecanoic, and hexadecenoic acids comprised 80% of the total fatty acids composition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01281148
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