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  • Articles  (108)
  • 2020-2023
  • 2000-2004  (37)
  • 1980-1984  (21)
  • 1965-1969  (30)
  • 1960-1964  (7)
  • 1955-1959  (13)
  • 1935-1939
  • Medicine  (86)
  • Energy, Environment Protection, Nuclear Power Engineering  (23)
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  • Articles  (108)
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  • 11
    Electronic Resource
    Electronic Resource
    Interhemispheric climate links revealed by a late-glacial cooling episode in southern Chile (2001)
    [s.l.] : Macmillian Magazines Ltd.
    Nature 409 (2001), S. 804-808 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Understanding the relative timings of climate events in the Northern and Southern hemispheres is a prerequisite for determining the causes of abrupt climate changes. But climate records from the Patagonian Andes and New Zealand for the period of transition from glacial to interglacial ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/35057252
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  • 12
    Electronic Resource
    Electronic Resource
    Hormonal Control of Lipid Concentration in Rat Heart and Gastrocnemius (1965)
    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 488-488 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Rat hearts were perfused for 10 min with medium containing glucose (5-5 mM) and insulin (0-1 unit/ml.), and the excised ventricles frozen with a tissue clamp and powdered in a percussion mortar2. Gastrocnemius muscle was frozen in acetone?solid carbon dioxide mixture and powdered after 10 min of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/208488a0
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  • 13
    Electronic Resource
    Electronic Resource
    Bathyscaphoid Squid (1958)
    [s.l.] : Nature Publishing Group
    Nature 182 (1958), S. 1810-1811 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] These mid-water squid had enormous body cavities filled with fluid1. When the fluid, and it amounted to two-thirds of the squid s volume, was drained the squid sank; this showed that the buoyancy of the intact animals was given by the low densities of their coelomic fluids. From the volumes of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1821810b0
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  • 14
    Electronic Resource
    Electronic Resource
    A Gregarious Factor in the Natural Conditioned Salivary Reflexes of Sheep (1957)
    [s.l.] : Nature Publishing Group
    Nature 179 (1957), S. 341-344 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] LORENZ1 has pointed out considerable limitations in the knowledge likely to accrue from the Pavlovian type of experiment on conditioned reflexes. Principally, these stemmed from the fact that the animal was isolated from stimuli other than the one chosen by the experimenter, and this restraint ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/179341a0
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  • 15
    Electronic Resource
    Electronic Resource
    Visual Pigments of Deep-Sea Fish (1956)
    [s.l.] : Nature Publishing Group
    Nature 178 (1956), S. 1059-1059 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Simple visual inspection showed that the unbleached retinae were golden coloured. Fig. 1 demonstrates that the changes in spectral absorption on bleaching such retinas were those of retinal photosensitive pigments differing from visual purple in having their maxima displaced about 20 mµ ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1781059a0
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  • 16
    Electronic Resource
    Electronic Resource
    Delayed Effect of Ipsilateral Intracarotid Infusion of Sodium Chloride on the Composition of the Parotid Saliva of Sodium-depleted Sheep (1956)
    [s.l.] : Nature Publishing Group
    Nature 177 (1956), S. 1035-1036 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] During the investigation of this aspect of parotid secretion, we have observed the effect of infusing a concentrated solution of sodium chloride into the ipsilateral carotid artery of sodium-depleted sheep. This caused, after a time delay of 100-150 min., a rapid increase in the ratio ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1771035a0
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  • 17
    Electronic Resource
    Electronic Resource
    para -Hydroxybenzaldehyde in Human Viscera (1963)
    [s.l.] : Nature Publishing Group
    Nature 198 (1963), S. 793-794 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A woman of 28, previously healthy for some years, was taken ill with vomiting, went into coma after 5 days, was then admitted to hospital and died about 24 h later. It was known that she may have taken aspirin and in hospital she was given 'Coramine' (nikethamide) and 'Distaquaine' (procaine ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/198793a0
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  • 18
    Electronic Resource
    Electronic Resource
    Eyes of the Histioteuthidae (1968)
    [s.l.] : Nature Publishing Group
    Nature 219 (1968), S. 400-401 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In many vertebrates, near ultraviolet light (wavelengths between 300?400 mm.) and sometimes even blue light is heavily absorbed by intra-ocular filters; these are found in various parts of the eye, in the cornea, lens and retina. Such ultraviolet filters, which limit the range of wavelengths of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/219400a0
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  • 19
    Electronic Resource
    Electronic Resource
    Effect of Alloxan Diabetes, Starvation and Refeeding on Glycolytic Kinase Activities in Rat Epididymal Adipose Tissue (1967)
    [s.l.] : Nature Publishing Group
    Nature 216 (1967), S. 156-157 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Chemicals were obtained from sources described previously10'11. All enzymes were obtained from Boehringer Corporation (London), Ltd. Male albino Wistar rats (150-200 g) were used throughout and the diet, unless otherwise stated, was as given by Newsholme and Randle12. Acute alloxan diabetes was ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/216156a0
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  • 20
    Electronic Resource
    Electronic Resource
    Effect of posture and sleep on pharmacokinetics (1980)
    Springer
    European journal of clinical pharmacology 18 (1980), S. 175-183 
    Details
    ISSN: 1432-1041
    Keywords: amoxycillin ; pharmacokinetics ; bedrest ; sleep ; ambulation ; renal clearance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The pharmacokinetics of amoxycillin in normal male volunteers was studied during the states of bedrest, sleep and ambulation. The absorption and disposition of amoxycillin in ambulatory subjects was found to be comparable to that reported previously by other workers. Serum amoxycillin concentrations were found to be significantly greater during ambulation than during bedrest and sleep. The difference in serum levels resulted from an increased apparent total serum clearance and amoxycillin renal clearance during bedrest and sleep compared to ambulation. No significant differences in the clearance was found between the states of bedrest and sleep. The change in renal clearance of amoxycillin during ambulation was attributed to a diminished renal blood flow. Although the terminal half-life of amoxycillin did not differ significantly, the apparent volume of distribution appears to be much greater during bedrest and sleep than during ambulation. This difference could be explained pharmacokinetically using a two compartment model. No significant difference was found between the rates of absorption of amoxycillin as reflected by the lag time and time to peak serum amoxycillin. The actual values for these parameters would suggest, however, that the absorption of amoxycillin is faster during ambulation than in bedrest and that the absorption rate during sleep is slowest. The clinical implications of the effect of posture and sleep on the pharmacokinetics of amoxycillin are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00561587
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