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  • Springer  (25)
  • Springer Nature  (13)
  • Wiley  (13)
  • Wiley-Blackwell  (5)
  • Frontiers Media  (3)
  • 2020-2023  (3)
  • 2000-2004  (19)
  • 1980-1984  (17)
  • 1970-1974  (18)
  • 1945-1949  (2)
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Year
  • 1
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    Unknown
    Motion of dinoflagellates in a simple shear flow (2000)
    Wiley
    Details
    Publication Date: 2000-11-01
    Print ISSN: 0024-3590
    Electronic ISSN: 1939-5590
    Topics: Biology , Geosciences , Physics
    Published by Wiley on behalf of Association for the Sciences of Limnology and Oceanography.
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    PAPER CURRENT
  • 2
    Electronic Resource
    Electronic Resource
    Experimental allergic sialoadenitis III. acute parotitis induced by instillation of antiserum to rat plasma into the glandular duct of rats (1972)
    Springer
    Cellular and molecular life sciences 28 (1972), S. 1360-1361 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Durch den Ausführungsgang der Ohrspeicheldrüse wurde Antiserum gegen Rattenblutserum eingeleitet, was zu einer schweren allergischen Entzündung der Parotisdrüse führte. Es wird angenommen, dass es sich bei dieser Entzündung um eine besondere Art von Arthusreaktion handelt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01965345
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  • 3
    Electronic Resource
    Electronic Resource
    Bridges between chromosomes (1972)
    Springer
    Cellular and molecular life sciences 28 (1972), S. 483-484 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Résumé Dans les cultures de cellules du triton, les ponts interchromosomaux peuvent se former dans les figures métaphasiques sous l'influence d'une solution hypotonique. Ce résultat, obtenu au microscope à la lumière ordinaire, pose la question de savoir si les ponts déjà décrits dans les micrographes électroniques sont également dus à l'emploi des solutions hypotoniques.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02008356
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Reactivity of juxtaglomerular granule cells to changes in sodium and potassium intake in the absence of the adrenal bodies (1970)
    Springer
    Cellular and molecular life sciences 26 (1970), S. 374-376 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Résumé Chez les rats adrénalectomisés, une différence très nette de l'indice de la granularité juxtaglomérulaire est apparue entre les animaux qui avaient bu du 2% NaCl et ceux qui avaient reçu ou de l'eau distillée ou du 2% KCl. Il y a donc une réactivité juxtaglomérulaire, indépendente du cortex surrénal.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01896896
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Triggering Protostellar Collapse, Injection, and Disk Formation (2000)
    Springer
    Space science reviews 92 (2000), S. 13-22 
    Details
    ISSN: 1572-9672
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Certain meteoritical inclusions contain evidence for the existence of short-lived radioactivities such as 26Al and 41Ca at the time of their formation 4.566 billion years ago. Because the half-lives of these nuclides are so short, this evidence requires that no more than about a million years elapsed between their nucleosynthesis and their inclusion in cm-sized solids in the solar nebula. This abbreviated time span can be explained if these nuclides were synthesized in a stellar source such as a supernova, and were then transported across the interstellar medium by the resulting shock wave, which then triggered the gravitational collapse of the presolar molecular cloud core. Detailed 2D and 3D numerical hydrodynamical models are reviewed and show that such a scenario is consistent with the time scale constraint, and with the need to both trigger collapse and to inject shock-wave matter into the collapsing protostellar cloud and onto the protoplanetary disk formed by the collapse.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1005237031828
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  • 6
    Electronic Resource
    Electronic Resource
    Excretion ofα-M-fetoprotein in the urine of rats (1974)
    Springer
    Cellular and molecular life sciences 30 (1974), S. 551-552 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Nachweis von α-M-Fetoprotein im Harn trächtiger Ratten, die an Masugi-Nephritis litten. Da dieses hochmolekulare Eiweiss im Harn normaler trächtiger Tiere nicht vorkommt, beweist sein Auftreten bei den Nephritis-Ratten eine nicht selektive Proteinurie.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01926347
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  • 7
    Electronic Resource
    Electronic Resource
    DNA insertions which affect the expression of the yeast iso-2-cytochrome c gene (1983)
    Springer
    Current genetics 7 (1983), S. 117-122 
    Details
    ISSN: 1432-0983
    Keywords: Transportable elements ; Insertion mutations ; Expression mutants ; Yeast CYC7 gene
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The plasmid YCpCYC7(2) was constructed containing the Saccharomyces cerevisiae CYC7 gene, encoding the iso-2-cytochrome c protein, replicative sequences and selective markers from both E. coli and yeast, and the centromere of yeast chromosome III. The expression of the plasmid-CYC7 gene in yeast was similar to the low level expression characteristic of the chromosomal CYC7 gene. A number of insertions into the sequences 5′ to the gene were constructed in vitro. The insertion at 142 by 5′ to the coding sequence of a 400 by fragment which lies 5′ to the CYC1 gene and is known to be essential for the high rates of CYC1 transcription increased transcription of the CYC7 gene to levels characteristic of CYC1 transcription. On the other hand, the insertion of random DNA fragments at the same position gave mostly decreased CYC7 transcription. In addition to these in vitro constructions, a mutant plasmid was selected which had increased CYC7 transcription. This mutation was caused by the insertion of the bacterial IS1 element 313 by 5′ to the CYC7 coding sequence. The significance of these results is discussed in terms of two alternative models for CYC7 gene expression.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00365636
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  • 8
    Electronic Resource
    Electronic Resource
    Die elektrische Volumenmessung von Blutzellen bei der Erythropoese, bei Rauchern, Herzinfarkt- und Leukämiepatienten sowie von Leberzellkernen (1974)
    Springer
    Naturwissenschaften 61 (1974), S. 260-266 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00595658
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  • 9
    Electronic Resource
    Electronic Resource
    Eine verbesserte fluorimetrische Serumcortisolbestimmung (1970)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 252 (1970), S. 284-287 
    Details
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Durch täglich frische Zubereitung eines stabilen Fluorescenzreagenses, durch Fluorimetrie 80 min nach Zugabe des Fluorescenzreagenses zum dichlormethanextrahierten Cortisol, durch streng blasenfreie Füllung einer Spezialmikroküvette mittels Pumpvorrichtung und durch optimale Messung der Cortisolfluorescenz im registrierenden Spektralfluorimeter bei 464 nm (Anregung) und 522 nm (Emission) wurde die fluorimetrische Serumcortisolbestimmung verbessert. Die Methode erlaubt eine Serumcortisolbestimmung mit hoher Empfindlichkeit (〈 1 μg/100 ml), Präzision an einem Tag (Variationskoeffizient = 4,7% für 10 μg/ 100 ml) und Präzision von Tag zu Tag (VK=6–7%, Kontrollserum). Für die Spezifität der Methode sprechen die niedrigen Serumcortisolwerte von Adrenalektomierten unter Dexamethasonsubstitution (〈 2 μg/100 ml). Die klinische Brauchbarkeit der Methode für diagnostische und therapeutische Fragen wird diskutiert.
    Notes: Abstract The fluorometric determination of cortisol in serum was improved by the following measures: 1. Daily preparation of the fluorescence reagent (ethanol abs.: conc. H2SO4= 3∶7, v/v) at 0°C. 2. Fluorometry 80 min after the addition of the fluorescence reagent to dichloromethane extracted cortisol. 3. Filling of a special micro-cuvette by a pump system avoiding bubble formation in the cuvette. 4. Spectrofluorometer with optimal absorption (464 nm) and emission (522 nm) for cortisol. The method is of satisfactory sensitivity for cortisol (〈 1 μg/100 ml), precision (10 μg/100 ml ∶ S.D. = 0.5 μg/ 100 ml) and reproducibility from day to day (variation coefficient = 6–7%). The specificity of the method is demonstrated by the low values (〈 2 μg/100 ml) of total-adrenalectomized patients under dexamethasone maintainance (2 × 0.25 mg/day). The normal range (mean ± 2 S.D., logarithmic distribution) of 900 a.m. serum cortisol values of control persons is 9.7–32.0 μg/100 ml. Examples of the application of the method for diagnostic and therapeutic questions are reported.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00571352
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  • 10
    Electronic Resource
    Electronic Resource
    Distribution of golgi apparatus-associated polyribosomes across the polarity axis of dictyosomes of wild carrot (Daucus carota L.) (1984)
    Springer
    Protoplasma 123 (1984), S. 221-225 
    Details
    ISSN: 1615-6102
    Keywords: Golgi apparatus ; Endoplasmic reticulum ; Polyribosomes ; Golgi apparatus-associated polyribosomes ; Wild carrot (Daucus carota)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Endoplasmic reticulum-polyribosome-Golgi apparatus associations were a general feature of cells of suspension cultures of wild carrot (Daucus carota L.). Free polyribosomes occurred within the Golgi apparatus zone for all dictyosomes and with equal frequency at all levels within the stack including the most mature or trans face. When evaluated and quantified from electron micrographs, approximately 60% of the dictyosome profiles were characterized by a system of transition elements consisting of part smooth-part rough endoplasmic reticulum. These were encountered most frequently in the immediate vicinity of the immature, forming or cis face, usually toward the periphery of the stacked cisternae. Analysis of serial sections showed that those dictyosome profiles not exhibiting this characteristic did so primarily because of an unfavorable plane of sectioning. All dictyosomes examined in 5 or more serial sections revealed some type of close association with endoplasmic reticulum. Some of the associations were so close that direct connections between Golgi apparatus and endoplasmic reticulum tubules could not be excluded. Also present, especially at the forming or cis face, were small 600 nm transition vesicles with nap-like surface coats on nearly 90% of the dictyosomes examined. More than 50% exhibited spiny (clathrin-)coated vesicles at the mature or trans face.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01281169
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