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  • Springer  (35)
  • Blackwell Publishing Ltd  (1)
  • Nature Publishing Group  (1)
  • 2000-2004  (4)
  • 1985-1989  (16)
  • 1975-1979  (10)
  • 1960-1964  (4)
  • 1950-1954  (3)
  • 1
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 263 (1976), S. 389-393 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Band 3 proteins rotate in the human erythrocyte membrane; rotation is almost certainly confined to an axis normal to the plane of the membrane and is characterised by a diffusion coefficient of the order of 1,000 s−1. Spectrin does not restrict rotational motion of band 3 ...
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 40 (1987), S. 0 
    ISSN: 1574-6968
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: Symbiotic effectiveness (nitrogen-fixation ability) is not a measure of inter-strain competitiveness, and Rhizobium strains used as inocula frequently compete poorly with indigenous rhizobia for nodulation of the host legume. Competition between rhizobia delimits the use of Rhizobium inoculum in agriculture. We therefore chose to investigate aspects of the gene pool represented by an indigenous population of R. meliloti selected for maximum diversity, particularly for evidence of competitive dominance. This unadapted population was very heterogeneous in terms of plasmid content, somatic antigens and intrinsic antibiotic resistance (IAR). Little tendency towards competitive dominance (measured in terms of nodule occupancy) was observed. Classical methods (serotype, IAR) of characterising strains did not correlate to define dominance of a strain or a group of strains. The data are consistent with a continuum of symbiotically proficient strains under conditions of maximum diversity.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Springer
    Naturwissenschaften 63 (1976), S. 430-430 
    ISSN: 1432-1904
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie , Allgemeine Naturwissenschaft
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Springer
    Journal of molecular medicine 31 (1953), S. 969-975 
    ISSN: 1432-1440
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 5
    Digitale Medien
    Digitale Medien
    Springer
    Polar biology 5 (1986), S. 139-143 
    ISSN: 1432-2056
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary Samples of muscle, liver and kidney of Weddell and crabeater seals, Adélie and emperor penguins, and McCormick's skuas collected in the Weddell Sea in the summer 1982/83 were analysed for cadmium and copper. In general, the study aimed at contributing to the establishment of base-line data on potential pollutants in Antarctic ecosystems. In particular, it aimed at increasing the amount of data on Cd and Cu levels in the same species that that had been collected and analysed two years eralier, thus improving the possibility of statistical analyses into relationships between metal contents and biological parameters or sampling-sites of the animals, but the data basis is still too small for the letter purpose. In all species together, concentration ranges (on dry weight basis) were 0.16–0.77, 3.7–96.8 and 15.6–491 mg cadmium and 1.6–21.4, 14.9–149 and 12.6–47.7 mg copper per kg in muscles, livers and kidneys, respectively. The relatively high levels of both metals in all species analysed, in connexion with the available literature, suggest that levels in marine mammals and birds can only, if at all, to a minor extent reflect differences in environmental concentrations of these metals.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 6
    ISSN: 1432-2307
    Schlagwort(e): Chronic myeloproliferative disorders ; Thrombocytosis ; Primary Thrombocythaemia ; Granulo ; Erythrocytopoiesis ; Reticulin Fibers ; Circular Deviation ; Histomorphometry ; Bone marrow biopsies
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary A histomorphometric analysis was performed on trephine biopsies of the bone marrow in 55 patients with chronic myeloproliferative disorders (CMPDs) and marked thrombocytosis (platelet count exceeding 600 × 109/l). This study aimed at discriminating primary (essential) thrombocythaemia (PTH) from the various other subtypes of CMPDs presenting with thrombocytosis. Following the diagnostic requirements postulated by the Polycythemia-vera-Study-Group for PTH and polycythaemia vera rubra (P.vera) and the generally accepted criteria for the establishment of chronic myeloid leukaemia (CML) and agnogenic myeloid metaplasia (AMM), our cohort of 55 patients was divided into the following subgroups: CML (16 cases), P.vera (11 cases), AMM (13 cases) and finally PTH (15 cases). Histomorphometric measurements revealed that PTH was distinguishable from the other subtypes of CMPDs with respect to several histological variables: patients with PTH had a normal amount of neutrophilic granulo- and erythrocytopoiesis as well as a non-increased content of reticulin (argyrophilic) fibers in contrast to the findings in CML, P.vera and of course AMM. Moreover, sizes of megakaryocytes and their nuclei were significantly greater in PTH and internalization of haematopoietic cells (emperipolesis) was more frequently encountered in comparison with the other subtypes of CMPDs. Deviation of the circular perimeter of megakaryocyte shape was most prominently expressed in CML and AMM, and consequently generated an increased number of a-nuclear cytoplasmic fragments. In contrast to this feature aberration of the nuclei from a circular outline occurred in a less pronounced way in CML, but was excessive in P.vera, AMM and PTH. Our morphometric evaluation demonstrates that certain histological features may serve as a valuable aid in discriminating PTH from the other occasionally thrombocythaemic subtypes of CMPDs.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    Springer
    Research in experimental medicine 167 (1976), S. 23-30 
    ISSN: 1433-8580
    Schlagwort(e): Proteinuria ; Glomerulonephritis
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary The quantity of urinary proteins and their molecular weight composition was analyzed in different experimental glomerulopathies using the SDS-PAA-electrophoresis. Masugi nephritis, heterologous and autologous immune complex nephritis as well as D-penicillamine induced glomerulonephritis were studied in rabbits, guinea pigs and rats. The procedure allows (1) to distinguish physiological from low grade glomerular proteinuria by their respective characteristic patterns in early disease stages (2) to follow up the disease course of individual animals without sacrifice and (3) to discriminate species specificity of physiological urinary proteins. It is recommended to use this technique of urinary protein analysis in experimental conditions, where mild glomerular damage is expected.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 8
    Digitale Medien
    Digitale Medien
    Springer
    Applied physics 39 (1986), S. 173-181 
    ISSN: 1432-0630
    Schlagwort(e): 44.50 ; 78.65 ; 81.40
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: Abstract Optical reflection measurements are described as a new and simple technique to measure thicknesses and thickness changes of ultrathin organic overlayers on inorganic support. The prime advantages are high sensitivity in thickness measurements (0.1–1 Å), applicability under varying environmental conditions, nondestructiveness, applicability on different supports and high time resolution. These features are assessed theoretically and experimentally studying Langmuir-Blodgett films on SiO2 and Au supports. These films, in this work prepared with the model compound arachidic acid, provide the salient feature of well-defined thicknesses in integer multiples of 26.7 Å. Application of the technique in thermodesorption experiments reveals distinguished binding states with binding energies (73–110 kJ/mol) depending on the counterion (Mg2+ or Cd2+) used in preparing the films and ratios of different states depending on thickness. The binding energy for the main component of multilayers (73 and 81 kJ/mol) with thickness larger than 100 Å is comparable to the heat of evaporation of bulk fatty acids. In addition an analytic expression between layer thicknesses and reflection is derived from the Fresnel equation.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 9
    Digitale Medien
    Digitale Medien
    Springer
    Cellular and molecular life sciences 20 (1964), S. 89-90 
    ISSN: 1420-9071
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary In addition to gibberellins A1, A5, A6 and A8 previously isolated fromPhaseolus coccineus L., the occurrence of gibberellin A3 and of 5 new gibberellin-like substances «Phaseolus α-ɛ» was demonstrated. «Phaseolusɛ» was proved to be a gibberellin bound to carbohydrates and ninhydrin-positive compounds.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 10
    Digitale Medien
    Digitale Medien
    Springer
    Der Hautarzt 51 (2000), S. 774-777 
    ISSN: 1432-1173
    Schlagwort(e): Schlüsselwörter Morbus Grosshans-Marot ; Blaschkitis ; Lichen striatus ; Antinukleäre Antikörper ; Kutanes Mosaik ; Keywords Grosshand-Marot disease ; Blaschkitis ; Lichen striatus ; Antinuclear antibodies ; Cutaneous mosaicism
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Beschreibung / Inhaltsverzeichnis: Abstract E. Grosshans and L. Marot first described blaschkitis in 1990 as a linear inflammatory dermatitis following lines of Blaschko in an adult patient. We report another case which occurred in a 38-year-old woman who developed an extensive, linear, erythematosquamous dermatitis involving the face, all limbs and the trunk. The patient's serum tested positive for antinuclear antibodies at a dilution of 1:640. The lesions regressed spontaneously within 4 weeks. Blaschkitis is a distinct entity which corresponds neither to a known inflammatory dermatitis in the lines of Blaschko nor to an hamartoma nor to an X-linked disease. Cutaneous antigenic mosaicism, the expression of which might be induced by a viral infection, could trigger this localized inflammatory T-cell response. This hypothesis relates blaschkitis to other cutaneous autoimmune diseases, as does the presence of antinuclear antibodies. We therefore suggest renaming this type of inflammatory dermatitis Grosshans-Marot disease in honour to the dermatologists who first described the entity.
    Notizen: Zusammenfassung Die “Blaschkitis”, eine blaschkolineäre Dermatitis im Erwachsenenalter, wurde von E. Grosshans und L. Marot 1990 erstmals als Entität beschrieben. Wir berichten von einem weiteren Fall einer “Blaschkitis” bei einer 38-jährigen Patientin ohne Vorerkrankungen, die an Kopf, Hals, Armen, Beinen und extremitätennahen Rumpfbereichen blaschkolineäre erythematosquamöse Läsionen entwickelte. Es fanden sich antinukleäre Antikörper mit einem Titer von 1:640. Spontane Abheilung trat innerhalb von 4 Wochen ein. Bei der “Blaschkitis” handelt es sich weder um eine blaschkolineäre Variante einer bekannten Dermatose noch um eine hamartomatöse Fehlbildung noch um einen X-chromosomal-dominanten Gendefekt. Ein Mosaik kutaner Antigene mit Expression im Laufe des Lebens (z. B. virusinduziert) könnte zu dieser blaschkolineären T-lymphozytären Entzündungsreaktion führen. Diese Theorie rückt die blaschkolineäre Dermatitis im Erwachsenenalter in die Nähe der Autoimmunerkrankungen, ebenso die gefundenen antinukleären Antikörper. Nachdem es sich bei der “Blaschkitis” um eine eigenständige Entität handelt und verschiedene Namengebungen sich international nicht durchsetzen konnten, möchten wir vorschlagen, sie nach den Erstbeschreibern Morbus Grosshans-Marot zu benennen.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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