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  • Elsevier  (46)
  • American Association for the Advancement of Science  (6)
  • Nature Publishing Group  (6)
  • Blackwell Publishing Ltd  (4)
  • Coquina Press
  • 2015-2019  (14)
  • 1995-1999  (20)
  • 1980-1984  (15)
  • 1970-1974  (10)
  • 1965-1969  (4)
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  • 1
    Digitale Medien
    Digitale Medien
    A TECHNIQUE TO RECONSTRUCT RIVER DISCHARGE HISTORY FROM TREE-RINGS (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the American Water Resources Association 19 (1983), S. 0 
    Details
    ISSN: 1752-1688
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Architektur, Bauingenieurwesen, Vermessung , Geographie
    Notizen: : Cores were obtained from several tree species located both on a river floodplain and a nearby terrace. A ratio of annual tree growth on floodplains to terrace growth was developed and shown to be related to the annual river discharge. Growth ratios from the time prior to written records can therefore be used to reconstruct river discharge and infer past unrecorded flood frequency. Oak and basswood ratios yielded the best models for discharge reconstruction, whereas those of elm and birch were less useful. This method permits reconstruction of river discharge from an assemblage of growth cores obtained within a relatively small area.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1752-1688.1983.tb05311.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Localization of Glyoxylate Cycle Enzymes in Glyoxysomes in Euglena (1972)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 19 (1972), S. 0 
    Details
    ISSN: 1550-7408
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: SYNOPSIS. We demonstrated previously microbodies in Euglena gracilis grown in the dark on 2-carbon substrates. We have now established in Euglena the particulate nature of enzymes known in other organisms to be localized in microbodies (glyoxysomes and leaf peroxisomes). On a linear sucrose gradient the glyoxylate cycle enzymes band together at a nigner equilibrium density (1.20 g/cm3) than mitochondrial marker enzymes (1.17 g/cm3), establishing the existence in Euglena of glyoxysomes similar to those of higher plants. Glyoxylate (hydroxypyruvate) reductase and, under certain conditions, also glycolate dehydrogenase co-band with the glyoxylate cycle enzymes, suggesting that Euglena glyoxysomes, like those of higher plants, may contain peroxisomal-type enzymes. Catalase, an enzyme characteristic of microbodies from a variety of sources, was not detected in Euglena.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1550-7408.1972.tb03521.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Beta-Oxidation in Glyoxysomes from Euglena (1974)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 21 (1974), S. 0 
    Details
    ISSN: 1550-7408
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: SYNOPSIS. We demonstrated previously the presence of glyoxysomes containing the glyoxylate cycle enzymes in Euglena gracilis grown in the dark on ethanol. We have now established that the glyoxysomes of Euglena grown on hexanoate also contain the following enzymes of the pathway for β-oxidation of fatty acids: hexanoyl-CoA synthetase, 3-β-hydroxyacyl-CoA dehydrogenase and thiolase. Estimations of specific activities indicate that these enzymes are over 20 times as active in glyoxysomes as they are in mitochondria, suggesting that the β-oxidation of fatty acids occurs almost entirely in Euglena glyoxysomes under these conditions. Thus, the entire portion of the gluconeogenic pathway from fatty acid to succinate is localized in the glyoxysome of Euglena.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1550-7408.1974.tb03750.x
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  • 4
    Digitale Medien
    Digitale Medien
    Feeding Mechanisms of Babesia equi (1974)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 21 (1974), S. 0 
    Details
    ISSN: 1550-7408
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: SYNOPSIS. Electron microscope and time lapse, phase contrast cinematography studies on Babesia equi organisms within equine red blood cells revealed that this hemoprotozoon has two organelles possibly involved with ingestion of nutrients: a cytostome that takes in hemoglobin from the host cell and a tubule that extends from the main body of the parasite through the erythrocyte to the blood plasma and appears to ingest plasma during periods of rapid growth and development.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1550-7408.1974.tb03734.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Digitale Medien
    Digitale Medien
    A novel intercistronic regulatory element of prokaryotic operons (1982)
    [s.l.] : Nature Publishing Group
    Nature 298 (1982), S. 760-762 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The histidine transport operon of S. typhimurium consists of four cistrons, coordinately transcribed from a single promoter (see accompanying letter4). Between the first two genes of this operon, hisJ (encoding the periplasmic histidine-binding protein) and hisO (encoding a membrane-bound protein), ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/298760a0
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  • 6
    Digitale Medien
    Digitale Medien
    Charge Transfer Properties of dl -Thioctic Acid and Other Disulphides (1965)
    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 1203-1203 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The complexes are readily generated by mixing rigorously purified solutions of the donor and acceptor. Special care must be taken to remove thiols, which are the major impurities in disulphides, since these react with TCNE. Table 1 lists some representative spectral data; several sulphides are ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/2081203a0
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    Measurement of the Exposure of Human Populations to Environmental Radiation (1965)
    [s.l.] : Nature Publishing Group
    Nature 206 (1965), S. 658-662 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE accurate determination of representative exposure-levels of large human populations to ionizing radiation in the environment has proved to be a problem of considerable interest to the biologist and of comparable difficulty for the physicist. In an attempt to evaluate existing techniques for ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/206658a0
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
    Digitale Medien
    Digitale Medien
    Atom bouncers have it taped (1995)
    [s.l.] : Nature Publishing Group
    Nature 377 (1995), S. 291-292 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] EXPERIMENTERS now have a new set of tricks for manipulating and storing cold atoms — and the key ingredients are familiar high-street commodities. Edward Hinds and co-workers at Yale University have repeatedly bounced rubidium atoms from magnetic tape of the kind used to record audio ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/377291a0
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
    Digitale Medien
    Digitale Medien
    Deficits in auditory temporal and spectral resolution in language-impaired children (1997)
    [s.l.] : Nature Publishing Group
    Nature 387 (1997), S. 176-178 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] We measured the detection threshold for a brief tone presented before, during or after two different masking noises in eight children diagnosed with specific language impairment, and in eight control children with normal language skills who matched the others in age and non-verbal intelligence ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/387176a0
    Standort Signatur Erwartet Verfügbarkeit
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  • 10
    Digitale Medien
    Digitale Medien
    Genetic kin recognition: honey bees discriminate between full and half sisters (1983)
    [s.l.] : Nature Publishing Group
    Nature 302 (1983), S. 147-148 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Queen honey bees mate with a number of different drones before they lay their first eggs11. The sperm, to some extent, mix in the spermatheca and the hive contains several distinct patrilineal worker groups of full sisters while the workers are matrilineal half sisters across groups12'13. In ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/302147a0
    Standort Signatur Erwartet Verfügbarkeit
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