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  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 196 (1962), S. 494-495 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1. Archigetes appendiculatus in the genital segments of Limnodrilus hoffmeisteri. Both host and parasite are sexually mature, eggs being clearly visible in the uterus of the parasite. Note the separation of the vitellaria into four distinct lobes, (x c. 17) At present we are collecting ...
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  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 130 (1932), S. 277-277 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN articles in NATURE and elsewhere, M. E. J. Gheury de Bray has proposed and defended the suggestion that the velocity of light may be a decreasing function of time, varying at present by about 4 km. a second a year. He bases this idea on an examination of the published results of measurements ...
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  • 3
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 198 (1963), S. 1317-1318 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The development of radioactive methylcholanthrene has allowed the investigation of its metabolism in rats of the Sprague-Dawley strain. Six rats were used. These were females of the Sprague-Dawley strain of Dr. Huggins or of a Sprague-Dawley strain established in Britain at the A.S.L. Farms, Ltd., ...
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 181 (1958), S. 1271-1272 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 shows the results of an experiment in which five mature leaves of Euonymus europaeus L. and of sugar beet were brought to full turgor and then allowed to wilt under constant light, temperature and humidity with hourly determinations of weight, area and volume (by displacement of water). The ...
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 180 (1957), S. 192-193 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] (1) For routine electrocardiograms in the acceleration research department, small silver disks 1 -5 cm. in diameter are used attached to the front of the chest for the V-leads and to the back for the Duchosal and Sulzer method in vector cardiography. Contact with the skin is limited to the ...
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  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 178 (1956), S. 810-811 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A low-level sinusoidal fatigue stress (of about 300 c./s.) superimposed on the static creep stress increases the creep-rate of lead markedly. This phenomenon has already been observed by Greenwood1. In the present case, the measurements show that this increase is considerably greater than that ...
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  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 179 (1957), S. 1291-1292 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT is now evident, from a variety of experiments, that under cyclic stresses metals may re-soften, if internal stresses already exist, or alternatively they may develop a process of hardening, if initially annealed. The softening resulting from cyclic stresses has been detected, for example, by ...
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  • 8
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 179 (1957), S. 50-51 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In Jer pentanol/ammonia, n-butanol/dioxan/am-monia and n-pentanol/n-butanol/ammonia systems, which separate thyroxine and 3': 3: 5-tri-iodothyro-nine, the mono-iodo aldehyde runs in the same position as tri-iodothyronine. In n -butanol/ammonia this aldehyde overlaps thyroxine and tri-iodothyronine, ...
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  • 9
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 178 (1956), S. 957-959 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] An international conference on the fatigue of metals, sponsored by the Institution of Mechanical Engineers, in co-operation with the American Society of Mechanical Engineers, was held in London during September 10-14. Some eighty papers were presented, covering the whole range of interests in ...
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  • 10
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 184 (1959), S. 1492-1493 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Further investigation has shown: (1) The antidiuretic property is shared by two halogenated sulphonamides ('Hygroton' and G 32359) in which the halogen and sulphamyl group are in the ortho position, but which otherwise bear little structural resemblance to chlorothiazide. The chemical names of ...
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