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  • 1970-1974  (11)
  • 1890-1899  (4)
  • 1
    Electronic Resource
    Electronic Resource
    An Aurora on November 23 (1894)
    [s.l.] : Nature Publishing Group
    Nature 51 (1894), S. 107-107 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] STEPPING out of doors to-night, November 23, at 7.30, I was surprised to see the whole northern sky filled with luminous mist, so clear that our shadows were dimly observed on the shining surface of the wet highway. There were few tremulous motions, but the light clouds advanced southwards in ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/051107c0
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  • 2
    Electronic Resource
    Electronic Resource
    Alpha Rhythm in the Blind (1971)
    [s.l.] : Nature Publishing Group
    Nature 232 (1971), S. 134-134 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have re-examined the eyeless patient described by Shaw, Foley and Blowers3 and find that there are present, across the empty orbits, standing potentials which behave in a manner similar to the normal corneo-retinal potential. When the patient was asked, "Please look to the left and then to the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/232134b0
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  • 3
    Electronic Resource
    Electronic Resource
    ‘Steady-state’ properties of the baroreceptor-heart rate reflex in essential hypertension in man (1974)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental pharmacology and physiology 1 (1974), S. 0 
    Details
    ISSN: 1440-1681
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: SUMMARY 1. Rises and falls in mean arterial (MAP) and pulse (PP) pressures from the resting value were evoked by intravenous injections of phenylephrine and glyceryl trinitrate, and were related to the reflexly evoked changes in heart period (HP; pulse interval).2. The steady-state properties of the baroreceptor-heart rate reflex were examined by deriving MAP-HP curves in a group of twenty-three healthy normotensive subjects, and in two groups of sixteen and eight subjects with essential hypertension of different severity. Each group was subdivided into two subgroups according to age: (i) 18–30 years; (ii) 33–57 years. The MAP-HP curves are sigmoid and each is characterized by its median blood pressure (BP50), average gain (Ḡ1) and heart period range (HPR).3. In a given age group, the curves are ‘reset’ about a higher BP50 with increasing severity of hypertension. There is progressive reduction in HPR (to 80–55% of normotensive HPR) due to lowering of the upper HP plateau, which probably indicates impairment of function of the vagal component of the reflex. In three out of four hypertensive groups, Ḡ is also significantly reduced to between 60 and 30% of Ḡ of normotensive subjects of the same age.4. The effect of age on the curve parameters is independent of the effects due to hypertension. For a given MAP, Ḡ and HPR are lower in older than in younger subjects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1440-1681.1974.tb00528.x
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  • 4
    Electronic Resource
    Electronic Resource
    Sarcocystis in Tortoises: A Replacement Name, Sarcocystis kinosterni, for the Homonym Sarcocystis gracilis Lainson & Shaw, 1971 (1972)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 19 (1972), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1972.tb03439.x
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  • 5
    Electronic Resource
    Electronic Resource
    Sarcocystis gracilis n. sp. from the Brazilian Tortoise Kinosternon scorpioides (1971)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 18 (1971), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. Sarcocystis gracilis n. sp. is described in the tortoise Kinosternon scorpioides (Reptilia, Chelonia) from the Island of Marajó, north Brazil. This appears to be the first record of a sarcosporidian from this group of reptiles.The cysts are restricted to the skeletal musculature and may reach up to 8.0 mm in length. The cyst wall is extremely delicate, with no visible striations or spines: the trabeculae are well developed and growth of the cyst appears to be largely from caps of proliferative cells at the poles.The zoites are long and slender, averaging 18.4 × 1.4 μ in fresh preparations. They undergo sudden and rapid gliding movements. The parasite produces striking pathologic changes in the muscle.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1971.tb03335.x
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  • 6
    Electronic Resource
    Electronic Resource
    SEDIMENTATION IN THE ICE-CONTACT ENVIRONMENT, WITH EXAMPLES FROM SHROPSHIRE (ENGLAND) (1972)
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 18 (1972), S. 0 
    Details
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Glacial sedimentation is assigned to two environments, the pro-glacial and the ice-contact. This paper is concerned with sedimentation in the ice-contact environment. The sub-drift topography of the area of study and the direction of ice movement are shown to be conducive to ice stagnation which is necessary for widespread ice-contact sedimentation. Ridges of glacigenic sediment show faulted, collapsed margins and lateral kettle holes characteristic of ice-contact landforms. The internal structure of these ridges is analysed in terms of primary and secondary sedimentary structure and texture. The spatial distribution of sedimentary structure and texture is shown to be similar to the fluvial models of Allen (1964) and Visher (1965). The absence of lateral extension of the fluvial members is interpreted as being due to stream training by ice walls preventing lateral migration. Large thicknesses of horizontal stratification and strongly unimodal palaeocurrent estimates are believed to be a result of this low sinuosity. Primary sedimentary structure and texture are used to designate facies. The distribution of the facies is thought to be diagnostic of the ice-contact environment. Downstream facies migration is thought to have occurred as a result of changes in the ratio of sediment supply to stream power.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3091.1972.tb00002.x
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  • 7
    Electronic Resource
    Electronic Resource
    Prostaglandins in Reproduction (1974)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Physiology 36 (1974), S. 391-412 
    Details
    ISSN: 0066-4278
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Medicine , Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.ph.36.030174.002135
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  • 8
    Electronic Resource
    Electronic Resource
    THE BIOLOGICAL SIGNIFICANCE OF THE PROSTAGLANDINS (1971)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 180 (1971), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1971.tb53181.x
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  • 9
    Electronic Resource
    Electronic Resource
    THE EFFECT OF PGE1 ON CYCLIC AMP AND ION MOVEMENTS IN TURKEY ERYTHROCYTES (1971)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 180 (1971), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1971.tb53195.x
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  • 10
    Electronic Resource
    Electronic Resource
    Absence of Butterflies (1894)
    [s.l.] : Nature Publishing Group
    Nature 50 (1894), S. 297-297 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] REFERRING to “Delta's” note, I may say that in the fine weather which we had here in April, the small tortoise-shell butterfly appeared more numerously than ever I had witnessed it at that season, or indeed at any time. I recollect counting a dozen at one time on a small bush of Andromeda ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/050297b0
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