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  • Nature Publishing Group  (17)
  • Blackwell Publishing Ltd  (5)
  • Oxford University Press
  • 1960-1964  (22)
  • 11
    Electronic Resource
    Electronic Resource
    Increased Level of Dihydrofolic Reductase in Leucocytes of Patients Treated with Amethopterin (1962)
    [s.l.] : Nature Publishing Group
    Nature 193 (1962), S. 140-142 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DIHYDROFOLIC reductase. which catalyses reaction (1): dihydrofolate + reduced triphosphopyridine micleotide (TPNH) + H+ ^ tetrahydrofolate TPN+ (1) and to a smaller extent the reduction of folic acid to dihydrofolic acid, has been detected in leucocytes from patients with acute leukaemia and ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/193140a0
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  • 12
    Electronic Resource
    Electronic Resource
    Preparative Thin-Layer Chromatography as an Alternative for Column Chromatography (1962)
    [s.l.] : Nature Publishing Group
    Nature 193 (1962), S. 941-942 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] CHROMATOGRAPHY on adsorbent-coated glass strips or plates is frequently used as a qualitative analytical method. We have modified the techniques described by Kirchner1 and Stahl2 to make it applicable for preparative purposes. The method compares favourably with column chromatography in many ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/193941a0
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  • 13
    Electronic Resource
    Electronic Resource
    Increase in Sodium Content in the Arterial Walls during Experimental Hypertension (1964)
    [s.l.] : Nature Publishing Group
    Nature 201 (1964), S. 505-505 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The results presented here provide evidence that, in rabbits rendered hypertensive by partial ligation of the renal arteries3, hypertension is accompanied by a metabolic trouble of the arterial wall which is objectivated by a progressive increase in the sodium content in the arterial walls without ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/201505a0
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  • 14
    Electronic Resource
    Electronic Resource
    Differentiation of the Oral Field of the Sea Urchin Embryo (1964)
    [s.l.] : Nature Publishing Group
    Nature 201 (1964), S. 315-315 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1. Psammechinus miliaris, 16 h gastrula, 2 cells of the oral field. n, nucleus; m, mitochondrium; y, yolk sphere. The arrows indicate the elongated tips of the inner surface of the cells, (× c. 11,700) Examining thin sections of 16-h gastrulse of Psammech-inus miliaris in search of specific ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/201315a0
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  • 15
    Electronic Resource
    Electronic Resource
    Electron Microscope Study of the Exoerythrocytic Form of Plasmodium gallinaceum in Thin Sections of Infected Tissue Cultures (1960)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 7 (1960), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The exoerythrocytic forms of Plasmodium gallinaceum in thin sections of infected tissue cultures have been examined with the electron microscope. It was seen that important changes occur in the fine structure of the parasite during the various phases of the cycle. The cytoplasm of the merozoites at the beginning and at the end of each cycle shows a great electron density due to a fine granulation. Larger granules are found at one pole of the parasite. The merozoites have a large nucleus in the center, and an oval body of great electron density at one pole, the significance of which is unknown. Short canaliculi can also be seen in the cytoplasm, but no mitochondria have been found.The cytoplasm of the schizonts shows a low electron density. It contains small particles scattered irregularly throughout its whole mass. The nuclei are not well defined; the oval body observed in the merozoites apparently has disappeared. Short canaliculi are present everywhere; however, mitochondria could not be identified with certainty.In the final phase of the cycle, in the rosette formations, the cytoplasm assumes again the fine granular structure. The future merozoites are grouped around a cytoplasmic core, with which they are directly connected. The whole segmenter is situated in a vacuole formation. In cross sections of the merozoites an opening in the central pole has been observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1960.tb00734.x
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  • 16
    Electronic Resource
    Electronic Resource
    Submicroscopical Aspects of Schizotrypanum cruzi in Thin Sections of Tissue Culture Forms (1960)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 7 (1960), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: In order to study the blepharoplast-kinetoplast region in the adult form of Schizotrypanum cruzi thin sections of this form, obtained in tissue cultures, have been examined with the electron microscope. It has been seen that the kinetoplast is contained in a large spherical, vacuole-like space, in hich its osmiophilic mass is more dispersed than in the leishmania and crithidia forms, where it is contained in a rectangular, almost linear space. The basal body of the flagellum has been found at the margin of the vacuole, although separated from it. A group of striae in parallel array has been found with regularity in all the trypanosome forms, similar to the structures of the parabasal body in other protozoa, or to the Golgi apparatus of metazoan cells. The significance of this structure for the parasite is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1960.tb00718.x
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  • 17
    Electronic Resource
    Electronic Resource
    Separation of Human Serum Albumins (1960)
    [s.l.] : Nature Publishing Group
    Nature 188 (1960), S. 506-506 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A second group of proteins was also found which possessed a mobility on filter paper similar to, but not identical with, that of albumin. They migrate at the same rate as the slow portion of the albumin and in starch gel can be separated from albumin only in a discontinuous system of buffers. These ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/188506a0
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  • 18
    Electronic Resource
    Electronic Resource
    Nitrogen-14 in Natural Diamonds (1962)
    [s.l.] : Nature Publishing Group
    Nature 195 (1962), S. 171-172 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Without a careful study of the other impurities normally present even in gem diamonds it seems doubtful whether density or lattice constant measurements (of the accuracy involved, which is better than 1 in 10,000) can prove much. Lonsdale5 found a good type I diamond having a lattice constant ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/195171a0
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  • 19
    Electronic Resource
    Electronic Resource
    Impact of the Laser on Dental Caries (1964)
    [s.l.] : Nature Publishing Group
    Nature 203 (1964), S. 417-417 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Following a series of experiments of a study on impact of high-energy lasers, 300-joules exit energy, on bone, preliminary studies were done of the impact of the laser on teeth. These experiments were done with a pulsed ruby laser, 90-joules exit energy, beam width approximately 3/8 in., with an ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/203417a0
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  • 20
    Electronic Resource
    Electronic Resource
    Hepatic Inactivation of Angiotensin (1964)
    [s.l.] : Nature Publishing Group
    Nature 203 (1964), S. 531-532 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Twenty-nine Wistar rats, weighing 250?350 g, were anaesthetized with 20 mg/100 g body-wt. of tribromo-ethanol intraperitoneally and the height of the blood pressure response recorded through the carotid using a Teleo strain gauge. 'Hyportensin Ciba' was made up to 2 g/ml, of saline at pH 5.6 or ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/203531a0
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