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Digitale Medien

Structure of the Crystals of Tomato Bushy Stunt Virus Preparations (1938)

BERNAL, J. D. ; FANKUCHEN, I. ; RILEY, D. P.

[s.l.] : Nature Publishing Group

Nature 142 (1938), S. 1075-1075

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] WE have examined by X-ray methods crystals of the protein material prepared by F. C. Bawden and N. W. Pirie1 from tomato plants suffering from bushy stunt disease. The crystals were in the form of isotropic rhombic dodecahedra of average diameter of only 0.01 mm. Consequently, no ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/1421075a0

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2

Digitale Medien

Disintegration Processes by Cosmic Rays in Plates impregnated with Samarium (1938)

TAYLOR, H. J. ; FRASER, D. ; DABHOLKAR, V. D.

[s.l.] : Nature Publishing Group

Nature 141 (1938), S. 472-473

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] Blau and Wambacher1 have recently described experiments in which it appears that a novel type of disintegration may be provoked by cosmic radiation. ‘Stars’ of tracks due to heavy particles were found in plates which had been exposed for some months at a high altitude. For two ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/141472c0

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3

Digitale Medien

The Lorentz ‘Polarization’ Correction and the Behaviour of Radio Echoes from the Ionosphere at Frequencies near the Gyro-frequency (1938)

MARTYN, D. F. ; MUNRO, G. H.

[s.l.] : Nature Publishing Group

Nature 142 (1938), S. 1159-1160

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] IN a recent communication1, we presented certain experimental observations of the reflection of medium radio waves from the ionosphere. These results were interpreted as indicating that the Lorentz ‘polarization’ correction was zero in the ionosphere. This conclusion has since ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/1421159a0

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4

Digitale Medien

A Visual Phenomenon (1938)

WRIGHT, W. D.

[s.l.] : Nature Publishing Group

Nature 142 (1938), S. 1163-1163

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] THE interesting visual phenomenon described by Mr. Dartnall in NATURE recently1 was observed by Helmholtz many years ago2. The effect—the appearance of a purple after-image in a patch of light alternating at a frequency just below the critical frequency—no doubt ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/1421163b0

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5

Digitale Medien

Peptide Bonds in Globular Proteins (1938)

LINDERSTRØM-LANG, K. ; HOTCHKISS, R. D. ; JOHANSEN, G.

[s.l.] : Nature Publishing Group

Nature 142 (1938), S. 996-996

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] IT is well known that genuine proteins (at pH 7) are attacked by crystalline trypsin which, on the other hand, is able to split synthetic peptides. This has been taken as support for the view that these proteins contain peptide bonds in their molecules1. We wish, however, to ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/142996a0

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6

Digitale Medien

Effect of Space Isomerism on the Squeezing out of an Unsaturated Compound from a Mixed Monolayer on an Aqueous Sub-solution (1938)

HARKINS, WILLIAM D. ; FLORENCE, ROBERT T.

[s.l.] : Nature Publishing Group

Nature 142 (1938), S. 913-914

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] As the pressure is increased on a mixed film produced by a 1: 1 mixture of oleic acid (HOL) with stearyl alcohol (STOH) or amine, or stearic acid (HST), the unsaturated oleic acid begins to separate out at about 24 dynes per cm., at which pressure minute particles of the oleic acid become ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/142913a0

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7

Digitale Medien

Pleistocene Site in the Malay Peninsula (1938)

COLLINGS, H. D.

[s.l.] : Nature Publishing Group

Nature 142 (1938), S. 575-576

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] IT was to be regretted that until recently no artefacts of Pleistocene age had been found in the Malay Peninsula, and particularly so because of the relationship of the peninsula to the now sunken Sundaland which formerly joined Sumatra, Java and Borneo to the mainland of Asia. Fig. 1. ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/142575b0

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8

Digitale Medien

A Binocular Illusion (1938)

MORTON, J. D.

[s.l.] : Nature Publishing Group

Nature 142 (1938), S. 537-537

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] I WAS much interested in Sir Richard Paget's letter in NATURE of July 9, as I have observed the converse effect, in which a ‘suspended image’ may be seen behind the pattern viewed. The effect may be obtained by drawing a simple pattern (for example, of crosses, as in the enclosed sketch) ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/142537b0

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9

Digitale Medien

Isolation of a Flavin-Protein Compound from Milk (1938)

CORRAN, H. S. ; GREEN, D. E.

[s.l.] : Nature Publishing Group

Nature 142 (1938), S. 149-150

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] WE have been able to prepare a flavin-protein compound from cow's milk by the following procedure: (1) half-saturation with ammonium sulphate of the whey of rennin-treated milk; (2) ether extraction of the dried precipitate; (3) reprecipitation by 33 per cent saturation of the solution of the ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/142149a0

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10

Digitale Medien

Activity of the Sheep Tick (1938)

HENDRICK, JAMES ; MOORE, WALTER ; MORISON, GUY D.

[s.l.] : Nature Publishing Group

Nature 141 (1938), S. 648-648

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] THE activity of the sheep or grass tick, Ixodes ricinus L., in Great Britain has been reported by various workers1,2,3 to be confined to two periods of the year: (a) spring activity, extending from March until early June, (b) autumn activity, from late August until the end of ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/141648a0

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