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1

Digitale Medien

Life-time of the Lithium Atomic Resonance States (1951)

STEPHENSON, G.

[s.l.] : Nature Publishing Group

Nature 167 (1951), S. 156-156

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Notizen: [Auszug] The Ladenburg absorption formula3 relating the integral of the absorption coefficient over the whole line to the Einstein transition probability coefficient Anm may be conveniently put in the form loge(I0/IV)dl(1)pNƒe2ll02/mc2 (1) where N is the number of normal atoms of absorbing vapour per ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/167156a0

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2

Digitale Medien

Marine Biological Research in Great Britain (1944)

STEPHENSON, T. A.

[s.l.] : Nature Publishing Group

Nature 154 (1944), S. 300-300

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Notizen: [Auszug] THE letter published in Nature of July 29 from Prof. F. E. Fritsch opens an important subject which has been in the minds of a number of zoologists during the past few years, and it is one in connexion with which some of us would be extremely glad to see action taken on the lines which Prof. ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/154300a0

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3

Digitale Medien

Possible Role of Proteolytic Enzymes in Protein Synthesis (1953)

LOFTFIELD, ROBERT B. ; GROVER, JOHN W. ; STEPHENSON, MARY L.

[s.l.] : Nature Publishing Group

Nature 171 (1953), S. 1024-1025

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Notizen: [Auszug] As a test of this hypothesis, Hendler and Green-berg5 have recently studied the metabolism of labelled y-glutamyl-glycine; but they found that this particular compound is not significantly involved in any of several living systems that incorporate amino-acids into proteins. The evidence presented ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/1711024a0

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4

Digitale Medien

Experimental Determination of the Life-times of Atomic Resonance States (1951)

STEPHENSON, G.

[s.l.] : Nature Publishing Group

Nature 167 (1951), S. 112-112

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Notizen: [Auszug] Further work is progressing with the view of adapting the method to molecular transitions, and the results will be reported at a later date. Atom Transition Wave-length Life-time (sec.) Na 32S-32P 5896, 5890 A. 1.61 0.06 x 10-8 K 42S-42P 7699, 7665 2.71 0.09 x 10-8 Rb 52S-52P 7947, 7800 2.81 ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/167112a0

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5

Digitale Medien

Presence and Absence of the Pre-Natal Check in Lambs' Birthcoats (1954)

DRY, F. W. ; STEPHENSON, S. K.

[s.l.] : Nature Publishing Group

Nature 173 (1954), S. 878-879

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Notizen: [Auszug] Sickle-fibres constitute the most easily perceived evidence of the pre-natal check3-5. Of ten N/ + Aggrade lambs studied in a number of body regions, all had sickle-fibres on the shoulder patch and shoulder, and they were present on several necks, withers, sides and o backs, but not on any ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/173878b0

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6

Digitale Medien

Caution in the Use of Liquid Propane for freezing Biological Specimens (1954)

STEPHENSON, JOHN L.

[s.l.] : Nature Publishing Group

Nature 174 (1954), S. 235-235

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Notizen: [Auszug] On one occasion when I was slowly condensing propane in a flask chilled with liquid nitrogen, I obtained what appeared to be such a mixture : that is, I obtained two distinct layers of liquid in the flask, one of which had the characteristic appearance of liquid oxygen. This experience suggested ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/174235b0

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7

Digitale Medien

Perception of Weight and Elasticity (1937)

KATZ, D. ; STEPHENSON, W.

[s.l.] : Nature Publishing Group

Nature 139 (1937), S. 719-719

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Notizen: [Auszug] IN experiments on the perception of elasticity, we have found that individuals equate a pull on an expanding elastic spring with a much lighter lifted weight impression. Lifting a weight of 2.50 kilograms (for which the psycho-physical limen is of the order 0.10 kilogram) was matched by one ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/139719b0

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8

Digitale Medien

Resistance of a Soil Nematode to Changes in Osmotic Pressure (1942)

STEPHENSON, WILLIAM

[s.l.] : Nature Publishing Group

Nature 149 (1942), S. 500-500

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Notizen: [Auszug] THE results detailed below are considered to be of sufficient interest to merit early publication. An amplified account will be published in the future, when a description will be given of the species of Rhabditis which was employed. The worms were cultured in an agar broth the osmotic pressure ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/149500a0

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9

Digitale Medien

Oscillator Strength of the Na 2 1 Σ— 1 Σ Transitions (1950)

STEPHENSON, G.

[s.l.] : Nature Publishing Group

Nature 166 (1950), S. 191-192

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/166191b0

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10

Digitale Medien

Masses of Fundamental Particles (1950)

STEPHENSON, G.

[s.l.] : Nature Publishing Group

Nature 165 (1950), S. 1018-1018

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Notizen: [Auszug] Substituting for M% the present value 1837 '56 m for the mass of the neutral hydrogen atom, it is found that MX is 1839-08 m, in excellent agreement with the experimental neutron mass 1839-05 m. This simple relation between the neutron and hydrogen atom is consistent with Eddington's1 concept of ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/1651018c0

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