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  • 1960-1964  (10)
  • 1955-1959  (3)
  • 1930-1934  (2)
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  • 1
    Digitale Medien
    Digitale Medien
    Studies on the Mechanism of Auxin Action: Auxin Regulation of Nucleic Acid Metabolism in Pea Internodes and Coconut Milk Nuclei (1964)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 17 (1964), S. 0 
    Details
    ISSN: 1399-3054
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1399-3054.1964.tb08167.x
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  • 2
    Digitale Medien
    Digitale Medien
    Pachytene Chromosomes of Oryza perennis Moench from Cambodia (1964)
    [s.l.] : Nature Publishing Group
    Nature 202 (1964), S. 1362-1363 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The species 0. perennis is mostly cross-pollinated and it has a wide range of variation with a number of distinct geographical races. In the work recorded here a Cam-bodian type of O. perennis Moench was used and Belling's simple acetocarmine technique adopted. Twelve pachytene bivalents were ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/2021362a0
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  • 3
    Digitale Medien
    Digitale Medien
    Pigment Formation by Penicillium rubrum Stoll (1963)
    [s.l.] : Nature Publishing Group
    Nature 199 (1963), S. 71-72 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Ability of a number of different nitrogenous materials, and amino-acids when individually used as the sole source of nitrogen and of various sugars and carbohydrates to produce pigment in Sabourauds medium, have been determined. The extent of pigmentation observed after 8 days is given in ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/199071a0
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  • 4
    Digitale Medien
    Digitale Medien
    Formation of Auxin-bound Proteins (1961)
    [s.l.] : Nature Publishing Group
    Nature 192 (1961), S. 1290-1291 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The auxin Hised was naphthalene acetic acid-l-14C (NAA-14C) obtained from Tracerlab Inc., Waltham, Mass., United States. The specific activity of this preparation was rather low (6-7 (jtc./mgm.); in the experiments described here, concentrations lower than 5 X 10-* M could not be used. To study the ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/1921290a0
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  • 5
    Digitale Medien
    Digitale Medien
    Effect of Indole-3-Acetic Acid (IAA) on Phosphorus Metabolism in the Avena Coleoptile (1961)
    [s.l.] : Nature Publishing Group
    Nature 192 (1961), S. 1291-1292 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Five-mm. sections of 4-days old Avena coleoptiles (var. N.P.I) were incubated with radioactive di-sodium hydrogen phosphate (Na2H82PO4) and different concentrations of IAA in Jf/150 phosphate buffer of pS. 6-0 for 1 and 2 hr. The tissues were extracted with 80 per cent ethanol and the concentrated ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/1921291a0
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  • 6
    Digitale Medien
    Digitale Medien
    Mechanism of Bengal Tornadoes in the Nor'wester Season. (1931)
    [s.l.] : Nature Publishing Group
    Nature 127 (1931), S. 128-129 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE first requisite of tornado formation is a violent updraught of moist air. In a paper on the nor'-westers in Bengal, which will be published shortly, it is being shown from a large number of weather charts that the nor'wester squalls during the period February to June are due to the ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/127128a0
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  • 7
    Digitale Medien
    Digitale Medien
    On the luminescence of TlCl+KCl phosphor (1962)
    Springer
    The European physical journal 167 (1962), S. 20-25 
    Details
    ISSN: 1434-601X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The measurements on the luminescence spectra of TlCl+KCl mixed phosphor under low energy cathode rays at 80° K have been presented here. The reflectance as well as excitation spectra of this mixed phosphors have also been studied. The X-ray diffraction studies of the samples along with the optical studies show that the mixed phosphor consists of two phases: (1) KCl:Tl (2) TlCl:K. It has been observed that the emission bands due to thallous chloride are gradually quenched with the increase in potassium chloride content of the phosphor; further, the emission bands supposed to be due to KCl:Tl phosphors gradually appear. Since some of the emission bands obtained with KCl:Tl phosphors at high thallium content are also present in the luminescence spectra of thallous chloride it is suggested that such bands should be attributed to undissociated thallous chloride present in KCl:Tl phosphor. The quenching of thallous chloride emission by the incorporation of potassium chloride in the system has been explained as being due to the absence of stoichiometric excess of thallium in such mixed system. The results also show that the absorption spectra of the mixed system is determined by the minor components KCl:Tl. This indicates that the absorption spectra of KCl:Tl phosphor should not be affected by the presence of undissociated thallous chloride.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02144648
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  • 8
    Digitale Medien
    Digitale Medien
    Thioctic Acid and Photosynthetic Fixation of Carbon Dioxide (1958)
    [s.l.] : Nature Publishing Group
    Nature 181 (1958), S. 1219-1220 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Seven-day old cultures of Chlorella pyrenoidosa and Sce ±edesmus bliquus were centrifuged down at 12 C. in an MSE centrifuge and resuspended in 10 ml. phosphate buffer of pH. 6-8. The cells were then incubated with different concentrations of thioctic acid and 30 JJLC. of sodium ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/1811219a0
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  • 9
    Digitale Medien
    Digitale Medien
    Relationship between Auxins and Nucleic Acid Synthesis in Coleoptile Tissues (1959)
    [s.l.] : Nature Publishing Group
    Nature 183 (1959), S. 1824-1825 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Seeds of Avena sativa var. N.P.I and Oryza sativa var. Rupsail were used. The seeds were germinated in the dark with occasional red light for 3 days. The coleoptiles were then decapitated at 2-3 mm. and floated on water for 2 hr. to free them from any endogenous auxin. After a further decapitation ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/1831824b0
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  • 10
    Digitale Medien
    Digitale Medien
    The Sucking Apparatus in Ticks (1934)
    [s.l.] : Nature Publishing Group
    Nature 134 (1934), S. 664-664 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE mouth-parts hitherto recognised in ticks comprise a hypostome and a pair of cheliceræ, the three together forming what is believed to be the piercing and sucking organ. The actual mouth-opening, however, has never been observed. In the course of my studies upon the anatomy of ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/134664a0
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