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Digitale Medien

A new locus for autosomal dominant retinitis pigmentosa on chromosome 7p (1993)

Inglehearn, Chris F. ; Carter, Simon A. ; Keen, T.Jeffery ; [weitere]

[s.l.] : Nature Publishing Group

Nature genetics 4 (1993), S. 51-53

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ISSN: 1546-1718

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Medizin

Notizen: [Auszug] Autosomal dominant retinitis pigmentosa (adRP) is known to result from mutations in two different retinal genes—rhodopsin and peripherin—while a third locus has been implicated by linkage data. However, families have been reported in which all three known loci have been excluded. We ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/ng0593-51

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2

Digitale Medien

Operation of the Backward-Wave Oscillator (1960)

WONG, M. Y. ; SIMS, G. D. ; STEPHENSON, I. M.

[s.l.] : Nature Publishing Group

Nature 188 (1960), S. 803-804

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Notizen: [Auszug] The travelling-wave-tube analogue was described in detail in a recent paper1, and is based on the lumped circuit travelling-wave tube first described by Matthews2. Briefly it consists of a series of drift tubes inside a vacuum envelope interconnected with a series of inductance coils which are ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/188803b0

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3

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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4

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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5

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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6

Digitale Medien

A Modified Source Theory of Electromagnetic Propagation (1964)

STEPHENSON, L. M.

[s.l.] : Nature Publishing Group

Nature 202 (1964), S. 375-376

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Notizen: [Auszug] I HAVE previously1 directed attention to the fact that many relativistic electromagnetic effects can be explained using classical theory. This approach avoids time transformations, which are the most controversial consequence of special relativity. I should like to re-state these arguments more ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/202375a0

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7

Digitale Medien

Elementary Particles and the Signature of the Space-time Metric (1964)

STEPHENSON, G.

[s.l.] : Nature Publishing Group

Nature 201 (1964), S. 589-590

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Notizen: [Auszug] In relativistic quantum field theory where the under lying space-time metric is of the type given by (1), and in the unquantized field theory of gravitation as described by the general theory of relativity where the metric is that of a Riemann space of four dimensions, the signatures of the metrics ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/201589b0

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8

Digitale Medien

Cosmological Red-shift (1964)

STEPHENSON, L. M.

[s.l.] : Nature Publishing Group

Nature 204 (1964), S. 1180-1180

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Notizen: [Auszug] From this metric Hawkins2 has deduced an expression for a red-shift, arising in the absence of any galactic displacement, given by: AX 4 - - I recently proposed3 that a red- shift will occur in any model universe containing uniformly distributed matter if absorption or shielding of gravitational ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/2041180a0

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9

Digitale Medien

Specific Gravity Changes during the Development of the Sheep Fœtus (1962)

STEPHENSON, S. K. ; ROBERTS, J.

[s.l.] : Nature Publishing Group

Nature 196 (1962), S. 788-789

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Notizen: [Auszug] Fig. 1. Changes in the specific gravity of the whole foetus with increase in festal age. J, Ram foetuses; $, ewe foetuses; --. least squares regression of specific gravity on age Fœtuses were obtained from fine-wooled, Australian Merino ewes mated to a ram of the same strain, and foetal ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/196788a0

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10

Digitale Medien

Use of Katharometers in Gas Chromatography (1959)

EDEN, MURRAY ; KARMEN, ARTHUR ; STEPHENSON, JOHN L.

[s.l.] : Nature Publishing Group

Nature 183 (1959), S. 1322-1322

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

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

Notizen: [Auszug] His equation, dt/dx = a(k &2), states that the sensitivity of the detector, dt[dx, is proportional to the difference between the thermal conductivity of the carrier gas, kl9 and the vapour, k2, and inversely proportional to the square of the thermal conductivity of the carrier gas. As Ray ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/1831322a0

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