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1

Digitale Medien

Serotonin and Connective Tissue (1956)

ASBOE-HANSEN, G. ; WEGELIUS, O.

[s.l.] : Nature Publishing Group

Nature 178 (1956), S. 262-262

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Notizen: [Auszug] It has been suggested that serotonin might act as a histamine-liberator substance, some of the clinical signs resembling a histamine effect4. Various hista-mine liberators are able to induce degranulation and disruption of tissue mast cells5. Since connective-tissue formation is invariably ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/178262a0

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2

Digitale Medien

Production of Patulin in Apple Fruits by Penicillium expansum (1956)

BRIAN, P. W. ; ELSON, G. W. ; LOWE, D.

[s.l.] : Nature Publishing Group

Nature 178 (1956), S. 263-264

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Notizen: [Auszug] A strain of P. expansum known to produce patulin in culture was found to produce an antibiotic in apple tissues. The antibiotic had the same spectrum of antimicrobial activity as patulin, and its behaviour on paper chromatograms, using three different solvent systems, was the same as that of ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/178263b0

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3

Digitale Medien

Energy Relations of Mitotic Activity in Mouse Hair Bulbs (1956)

BULLOUGH, W. S. ; LAURENCE, EDNA B.

[s.l.] : Nature Publishing Group

Nature 178 (1956), S. 266-267

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Notizen: [Auszug] It has been shown in vitro that epidermal mitotic activity is dependent on an adequate supply of glucose and oxygen so that, in the absence of one or other of these substances, mitosis is severely depressed or even eliminated. Efficient energy -production through respiration is essential to ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/178266a0

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4

Digitale Medien

Histamine and Histidine in Excreta of the Blood-sucking Bug Rhodnius prolixus (1956)

HARINGTON, J. S.

[s.l.] : Nature Publishing Group

Nature 178 (1956), S. 268-268

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Notizen: [Auszug] The presence of histidine and its amine in substantial concentration was confirmed by tests with the diazo reagent of Pauly as applied to chromato-grams by Dent1. Histidine was further checked by parallel runs with pure substance. The histamine spot corresponds to the position allotted to it in the ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/178268a0

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5

Digitale Medien

Generic Status of Glossopteris , Gangamopteris and Palæovittaria (1956)

SURANGE, K. R.

[s.l.] : Nature Publishing Group

Nature 178 (1956), S. 270-271

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Notizen: [Auszug] As Prof. B. Salni1 remarked, while describing the cuticle of Glossopteris angustifolia, in dealing with material of this nature any information that took us beyond the gross features would be welcome. Fortunately in India these plant remains are found as impressions, many of which are carbonized ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/178270a0

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6

Digitale Medien

Detection of Free Radicals in Sodium Dithionite by Paramagnetic Resonance (1956)

HODGSON, W. G. ; NEAVES, A. ; PARKER, C. A.

[s.l.] : Nature Publishing Group

Nature 178 (1956), S. 489-489

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Notizen: [Auszug] Samples of anhydrous sodium dithionite showed a weak paramagnetic resonance absorption having a g-value of 2.01 ± 0.01 and width of 12 ± 3 gauss, suggesting that it was due to a free radical. This weak absorption could still be detected after pumping under high vacuum at a temperature ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/178489a0

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7

Digitale Medien

Moult Adaptation in Relation to Long-Distance Migration (1956)

BROEKHUYSEN, G. J.

[s.l.] : Nature Publishing Group

Nature 178 (1956), S. 489-490

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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 in April that these swallows leave southern Africa on their long-distance flight to the northern breeding quarters. Moulting flight- and tail-feathers at this time must be a disadvantage to these birds. The above data show that the moult which these swallows undergo in their wintering quarter ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/178489b0

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8

Digitale Medien

Spike Potentials produced by the Sea Lamprey ( Petromyzon marinus ) in the Water surrounding the Head Region (1956)

KLEEREKOPER, HERMAN ; SIBAKIN, KIRA

[s.l.] : Nature Publishing Group

Nature 178 (1956), S. 490-491

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Notizen: [Auszug] By recording with continuously moving film and using single sweeps, the frequency of the spike potentials was determined. Fig. 2 represents a short section of such a film. The time scale is 0.1 sec. The spikes on this film recur with a frequency of 0.4 sec., but under different experimental ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/178490b0

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9

Digitale Medien

Injury from the Decompression Component of an Air-Blast Wave (1956)

BROWN, F. W. ; LEE, RICHARD H.

[s.l.] : Nature Publishing Group

Nature 178 (1956), S. 490-490

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Notizen: [Auszug] The opinions or assertions in this letter are the private ones of the writers, and are not to be construed as official or reflecting the views of the Navy ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/178490a0

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10

Digitale Medien

Relation between the Volume of a Liquid and its Internal Energy (1956)

KING, M. B. ; STRICKLAND-CONSTABLE, R. F.

[s.l.] : Nature Publishing Group

Nature 178 (1956), S. 275-275

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Notizen: [Auszug] Although the molecules in the liquid state do not in general display long-range order, short-range order is known to exist : thus there is a fairly clearly defined distance l between the centres of molecules which are nearest neighbours. The expansion of such a liquid with change of temperature or ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/178275a0

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