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  • Springer  (473)
  • Springer Nature  (258)
  • Blackwell Publishing Ltd  (76)
  • Geological Society of London  (71)
  • Geological Society of America (GSA)
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 28 (1972), S. 466-467 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Résumé Le sérum et le plasma, nouvellement préparés, de l'AmphibienBufo marinus, ont, in vitro, un effet rapidement cytotoxique sur des cellules normales et malignes des autres Vertébrés.
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 30 (1974), S. 1248-1250 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Résumé Le caryotype de la grenouille couramment classée sous le nom deLeiopelma hamiltoni McCulloch, de l'île de Maude, en Nouvelle Zélande, est décrit pour la première fois. A l'état diploïde, le nombre des chromosomes est de 18. La plus petite des paires est acrocentrique et présente de petits satellites terminaux. On n'observe pas de microchromosomes. Pendant la diacinèse de la meïose mâle on peut observer des chromosomes bivalents avec 2 chiasmas terminaux. L'évidence caryologique est en accord avec les indications précédentes concernant l'aspect extérieur et l'anatomie du squelette:L. hamiltoni ressemble davantage àL. archeyi, qu'àL. hostetteri. On suggère la nécessité d'une réévaluation taxonomique du genre.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Chromosoma 30 (1970), S. 38-50 
    ISSN: 1432-0886
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Karyotypes of the Australian frogs Hyla caerulea (White) and Hyla phyllochroa Günther were prepared and analysed from colchicine-treated, primary cultures of adult heart, lung and kidney. The diploid chromosome number for both species is 26, which resembles that of most known karyotypes of Papuan hylids but differs from that of the genus Hyla in other regions. A statistical comparison, involving data from arm ratios, centromere indices and relative lengths of metaphase chromosomes of H. caerulea incubated at 31 and 37° C respectively, showed that the differences were non-significant at the 5% level. Similar treatment of data from cells of Hyla caerulea and Hyla phyllochroa incubated at 31°C failed to show a significant species difference. Absolute lengths of haploid chromosome complements of the two species at the same temperature were found to differ significantly. No evidence of sexual heteromorphism was found. The occurrence of a terminally situated, heterochromatic zone associated with the longer arm of the 11th pair of chromosomes is described and compared with the known condition in other hylids.
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  • 4
    ISSN: 1573-2657
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Mechanically skinned fibre preparations from the extensor digitorum longus muscle of the rat were used to test whether a rise in myoplasmic [NH4 +] in the range 2–10 mm interferes with the mechanism of excitation-contraction coupling in fast-twitch mammalian muscle. Under our conditions (pH 7.10, Mg2+ 1 mm, temperature 23° C), [NH4 +] up to 10 mm had little effect on the Ca+-activated force and on the peak of the t-system depolarization-induced force response. However, the duration of the depolarization-induced force response was decreased significantly at [NH4 +] ≥2 mm. From these data we conclude that the intracellular accumulation of NH4 + is not likely to play a major role in fatigue. Nevertheless, the build up of NH4 + during fatigue, may have a significant inhibitory effect on the force output by decreasing the duration of the t-system depolarization-induced activation of the contractile apparatus.
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  • 5
    ISSN: 1573-2657
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The main objective of this study was to analyse glycogen in single muscle fibres, using a recently developed microfluorometric method which detects subpicomol amounts of NADPH, glucose and glycogen (as glucosyl units) (detection limit 0.16–0.17pmol in a 25nl sample) without fluorochrome amplification. The fibres were freshly dissected from the twitch region of the iliofibularis muscle of the cane toad (Bufo marinus), and were mechanically skinned under paraffin oil to gain access to the intracellular compartments. The results show that: (1) glycogen concentrations in toad skeletal muscle fibres range between 25.8 and 369mmol glucosyl units/litre fibre volume; (2) there is a large variation in glycogen content between individual fibres from the iliofibularis muscle of one animal; (3) there are seasonal differences in the glycogen content of toad single muscle fibres; (4) the total amount of glycogen in single muscle fibres of the toad does not decrease significantly when storing the tissue, under paraffin oil, at 20–25°C for up to 6h or at 4°C for up to 24h; and (5) 15–26% of fibre glycogen can be washed in an aqueous solution at pH 5–7, within 5min, while 74–85% of fibre glycogen remains associated with the washed skinned fibre, even after 40min exposure of the skinned fibre preparation to the aqueous environment. The retention of most glycogen in the fibre preparation after mechanical removal of the plasma membrane and extensive washing indicates that in toad skeletal muscle fibres the largest proportion of glycogen is tightly bound to intracellular structures. The results also show that the skinned muscle fibre preparation is well suited for microfluorometric glycogen determination, since low molecular weight non-glycogen contributors to the fluorescence signal can be removed from the myoplasmic space prior to the glycogen hydrolysis step.
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  • 6
    Publication Date: 1972-04-01
    Print ISSN: 0014-4754
    Topics: Biology , Medicine
    Published by Springer
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  • 7
    Publication Date: 1974-11-01
    Print ISSN: 0014-4754
    Topics: Biology , Medicine
    Published by Springer
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  • 8
    Publication Date: 2012-12-12
    Print ISSN: 0947-8396
    Electronic ISSN: 1432-0630
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Springer
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  • 9
    Publication Date: 1970-01-01
    Print ISSN: 0009-5915
    Electronic ISSN: 1432-0886
    Topics: Biology , Medicine
    Published by Springer
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  • 10
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    Springer Nature | Palgrave Macmillan
    Publication Date: 2024-03-29
    Description: This Open access book brings a cultural lens, and a distinctive analytical framework, to the problem of transitioning to a sustainable, low-carbon future. The world faces a seemingly impossible hurdle – to radically alter long-established social, economic and technological systems in order to live within the biophysical limits of the globe, while ensuring a just and enduring transition. The overarching premise of this book is that this cannot be achieved without widespread cultural change. ‘We need a change in culture’ is often used rhetorically, but what does this really mean? Stephenson starts by exploring culture’s elusiveness, describing its divergent interpretations before identifying core features of culture that are common across most definitions. These characteristics form the core of the cultures framework, an extensively tested approach to studying the links between culture and sustainability outcomes. The framework makes culture an accessible concept which can be analytically applied to almost any sustainability problem. Using many examples from around the world, Stephenson illustrates how cultural stability, cultural flexibility and cultural transformation all have a part to play in the sustainability transition. She guides the reader in the use of the cultures framework for policy development and to underpin research undertaken by individuals or by multi-disciplinary teams. Clearly and engagingly written, Culture and Sustainability is essential reading for academics, students, policy makers and indeed anyone interested in a sustainable future.
    Keywords: sustainable transitions ; low carbon transition ; energy transition ; sustainability ; sustainable development goals ; culture and sustainability ; energy cultures ; culture framework ; socio-technical transitions ; thema EDItEUR::J Society and Social Sciences::JP Politics and government::JPQ Central / national / federal government::JPQB Central / national / federal government policies ; thema EDItEUR::J Society and Social Sciences::JH Sociology and anthropology::JHB Sociology ; thema EDItEUR::R Earth Sciences, Geography, Environment, Planning::RG Geography ; thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GT Interdisciplinary studies::GTP Development studies ; thema EDItEUR::R Earth Sciences, Geography, Environment, Planning::RN The environment::RNU Sustainability ; thema EDItEUR::J Society and Social Sciences::JB Society and culture: general::JBS Social groups, communities and identities::JBSR Social groups: religious groups and communities
    Language: English
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