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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Medical microbiology and immunology 182 (1993), S. 329-334 
    ISSN: 1432-1831
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Heterogeneities in the density of hepatitis C virus RNA-carrying material (HCV-RNA-CM) found in human sera (1.03–1.20 g/cm3) are attributed to the binding of low-density lipoproteins and/or of IgG. In some sera HCV-RNA-CM seems to be nearly totally bound to β-lipoproteins and cannot be precipitated by anti-IgG (γ); in others more than 95% of HCV-RNA-CM is bound to IgG and cannot be precipitated by anti-β-lipoprotein. Furthermore, there are sera from which HCV-RNA-CM can be completely be precipitated by either anti-β-lipoprotein or anti-IgG (γ), pointing to a binding of the two serum proteins to the same HCV-RNA-CM. There are other sera from which HCV-RNA-CM can be partially precipitated by the one or the other antiserum, leaving behind fractions, which are bound to β-lipoprotein or to IgG. HCV-RNA-CM cannot be precipitated from some sera either by anti-β-lipoprotein or by anti-IgG (γ).
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1106
    Keywords: Superior colliculus ; Auditory space map ; Auditory connectivity ; Inferior colliculus ; Megachiropteran bat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The objective of this study was to investigate whether a representation of auditory space in the superior colliculus (SC) of the echolocating megachiropteran bat (Rousettus aegyptiacus) exists. Additionally the subcortical auditory connectivity of the SC was investigated. A total of 207 units were recorded in five awake animals while presenting acoustic stimuli (white noise, clicks, and pure tones) at different positions in space. Six units responded to acoustic stimulation. Three of these located within the superficial layers and one located in the intermediate layers were classified as omnidirectional units. Two units were located within the deep layers. One was classified as a hemifield unit, and the other as a frontal unit. All units responded phasically to acoustic stimulation with a latency of 4–150 ms. None of them could be activated by visual stimuli. We further examined the interaction of paired auditory and visual stimulation in 116 visually responsive units. Responses to visual stimulation were markedly altered by acoustic stimulation in 5 units. The influence of the acoustic stimuli was temporally and spatially restricted, and resulted either in a reduction or an elevation of unit responsiveness. Horseradish peroxidase was injected into the SC of eight animals to investigate the auditory subcortical connectivity of the SC. Retrograde labeling in auditory structures was rare compared with labeling found in nonauditory structures (e.g., retina, substantia nigra, parabigeminal nucleus). In auditory structures retrograde labeling was found mainly in the external nucleus of the inferior colliculus and in the nucleus of the brachium of the inferior colliculus. To a lesser extent it was found in the nucleus sagulum and in the area medial to the lemniscal nuclei. In one case the dorsal nucleus of the lateral lemniscus and the anterolateral periolivary nucleus were labeled. Our results reveal only a sparse auditory input into the SC of the flying fox, R. aegyptiacus. On the basis of single-unit recordings, we did not find an elaborate representation of auditory space as it is described for several other species. The existence of auditory and bimodal neurones, in combination with their response properties, nonetheless indicate that there might be a representation of auditory space in the SC of R. aegyptiacus.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Zeitschrift für Rheumatologie 57 (1998), S. 285-291 
    ISSN: 0340-1855
    Keywords: Schlüsselwörter Lokalisierte Fibrose ; Retroperitonealfibrose ; Morbus Ormond ; Oligoarthritis ; Rheumaknoten ; Key words Localized fibrotic disorders ; retroperitoneal fibrosis ; Ormond‘s disease ; arthritis ; rheumatoid nodules
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Retroperitoneal fibrosis is a disorder in which the retroperitoneal fat is the site of a subacute and chronic inflammatory reaction and is subsequently replaced by dense fibrotic tissue. Rheumatoid nodules are chronic granulomata occurring at sites of pressure and movement, both near the body surface and internally.  A 55-year-old sales-manager was admitted to radiation synovectomy after a 5 year history of excessive right and left knee effusions. There were no other clinical or laboratory abnormalities. The patient did not respond to either radioisotope synoviorthesis using radioactive Yttrium (90 Y), or to open synovectomy and prostetic surgery of the right knee.  One year later, surgery of left ureter was necessary. Histological findings revealed the diagnosis of Ormond‘s disease. Comparative histological studies of synovial membrane of knee and retroperitoneal tissues showed local necrosis, fibrin deposition, lining cell proliferation, and infiltration by lymphocytes. Diagnosis of arthritis complicated by retroperitoneal rheumatoid nodules and retroperitoneal fibrosis was made. Serum rheumatoid factor has been negative. For the last 3 years, the patient has been on successful therapy with azathioprine. Rheumatoid nodules of the retroperitoneum have vanished completely and frequency of knee effusions decreased.
    Notes: Zusammenfassung Wir beschreiben den Fall eines 55-jährigen Patienten mit seit 5 Jahren bestehenden Kniegelenkergüssen beidseits, der uns zur Radiosynoviorthese zugewiesen wurde. Klinisch und laborchemisch ergaben sich zunächst keine Anhaltspunkte für eine entzündlich rheumatische Erkrankung. Weder Radiosynoviorthese noch offene Synovektomie mit partiellem Kniegelenkersatz des rechten Knies führten zu einem Rückgang der Ergußbildung. Ein Jahr später wurde anläßlich einer Harnleiteroperation die Diagnose eines Morbus Ormond gestellt. Die histologischen Studien von Kniegelenkssynovialmembran und Retroperitonealgewebe zeigten vergleichbare Strukturen. Die Diagnose einer seronegativen Oligoarthritis mit retroperitonealer Rheumaknotenbildung und Ausbildung eines sekundären Morbus Ormond war damit wahrscheinlich. Unter einer immunsuppressiven Therapie mit Azathioprin haben sich die retroperitonealen Rheumaknoten vollständig zurückgebildet, die erforderlichen Kniegelenkspunktionen deutlich abgenommen.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 121 (2002), S. 0 
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: In wheat, eyespot caused by PseudoCercosporella herpotrichoides, is one of the main foot-rot diseases. Yield losses up to 40% occur in some years. Plant protection by fungicide application is possible, but a better way is through resistance breeding. Two resistance sources are currently used: Aegilops ventricosa and the old French variety ‘Cappelle Desprez’. A new source of resistance has been found in the accession AE120 of Ae. kotschyi from the Gatersleben gene bank with the genome constitution UUSvSv. This accession has been crossed and backcrossed twice to susceptible wheat varieties, and in each generation, plants with a relatively high level of resistance have been selected. From this material, lines have been developed and tested in F6 to F8. Finally, several lines could be classified as moderately resistant, such as the French variety ‘Cappelle Desprez’ after resistance determination during milk ripeness (DC75). No line reached the high resistance level achieved with Pch-1 from Ae. ventricosa. The yield of these lines under infection conditions was higher compared with ‘Cappelle Desprez’. The line 6018-96-3 showed a high yield of 64.3 dt/ha compared with 59.6 dt/ha, on the average, in combination with the best expression of eyespot resistance in the adult growth stage over 3 years.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Multiple endopeptidases as biochemical marker for resistance of winter wheat to Pseudocercosporella herpotnchoides (Fron) Deighton. Electrophoretic patterns of primary leaf endopeptidases in breeding material derived from crosses between different winter wheat genotypes and amphidiploids (Triticum turgidum×Aegilops ventricosa) were compared with those of cultivars susceptible to Pseudocercosporella herpotrichoides. The results indicate that the multiple endopeptidase EP-1 coded by Wheat chromosome 7 D is absent in the international known lines ‘VPM 1’ and ‘Roazon’ and in all 24 winter wheat selections with increased resistance to P. herpotrichoides.A close relationship between the absence of EP-1 and the introduction of Aegilops ventricosa resistance is assumed. The use of this biochemical marker in wheat breeding is proposed.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 69 (1991), S. 4593-4595 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We obtain the entire region of existence of one-dimensional steady-state lossless domain-wall motion for the case of orthorhombic anisotropy with an in-plane field applied at an arbitrary angle. We compute the unstable solutions by applying the method used to obtain the stable solutions. Solutions with a nonzero in-plane field may be classified by their correspondences to the four Walker solutions: two stable (Bloch-wall-like) and two unstable (Néel-wall-like) solutions. All three previously identified breakdown mechanisms in stable solutions, domain-wall breakdown, and breakdown in the near and far asymptotic regions, are again found in unstable solutions. The existence limits of stable and unstable solutions are found to share certain boundaries. We find at any given velocity and field the number of solutions is zero, two, or four. We find an analytic solution which occurs within solution regions and as a boundary of the regions.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 0168-9452
    Keywords: Intrathylakoid pH ; Photophosphorylation ; Thylakoid membrane ; Violaxanthin de-epoxidase ; pH gradient
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 113 (1994), S. 0 
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: A total of 20 cultivars of winter wheat were tested by ELISA for resistance to Pseudocercosporella herpotrichoides in six environments and three growth stages. In a three-factor statistical analysis, the contribution of the different factors to their respective interactions was studied. The genotype × environment interactions exerted a considerable influence which could be reduced by increasing the number of test locations. Environments with a high disease level were less suited to measuring resistance than those environments with a medium level. Estimates of heritability from 0.54 to 0.78 show that successful selection may be possible using ELISA. Significant correlations of quantitative resistance at different environments were only obtained under similar environmental conditions (the same location, the same year) and with P. herpotrichoides populations of similar composition (the same inoculum). The contributions of the individual cultivars to the genotype/ environment interactions were not significantly different, except for ‘Roazon’ and ‘Rendezvous’. Due to high environmental effects in growth stage H5, the determination of quantitative resistance was more reliable in younger stages (65, 75). Nevertheless, the use of the values from that late stage did not reduce the genetic parameters (σ2, h2) if they were combined with the earlier measurements.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    System 11 (1983), S. 277-286 
    ISSN: 0346-251X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Linguistics and Literary Studies
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Biology and fertility of soils 9 (1990), S. 203-204 
    ISSN: 1432-0789
    Keywords: Collembola ; Colour-marked food ; Fungi ; Soil fauna ; Food selection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary A laboratory method was developed for colour-marking different food types ingested by several slightly pigmented or unpigmented species of Collembola. After feeding Collembola on food marked with food-colouring, the gut contents of the animals appeared coloured. Thus, it was possible to accurately relate the tested animals to the differently stained types of food, irrespective of the location of the animals at the moment of observation.
    Type of Medium: Electronic Resource
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