Proceedings of the Japan Academy

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Volume 26, Issue 6

Displaying 1-9 of 9 articles from this issue

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Studies on Embryonic Hibernation and Diapause in Insects

Yoshichiro UMEYA

1950 Volume 26 Issue 6 Pages 1-9
Published: 1950
Released on J-STAGE: September 12, 2006

DOIhttps://doi.org/10.2183/pjab1945.26.6_1

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On the Behaviour of the Boundary of Riemann Surfaces, II

Yasutaka NAGAI

1950 Volume 26 Issue 6 Pages 10-16
Published: 1950
Released on J-STAGE: September 12, 2006

DOIhttps://doi.org/10.3792/pja/1195571693

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On the Radiation Pressure in a Planetary Nebula. I

Wasaburo UNNO

1950 Volume 26 Issue 6 Pages 17-22
Published: 1950
Released on J-STAGE: September 12, 2006

DOIhttps://doi.org/10.3792/pja/1195571694

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The radiation pressure of the Lyman α line-radiation in a planetary nebula is discussed. Zanstra's 1) idea of redistribution in frequency in the line-contour is taken into account in detail. The equation of transfer of the Lyman x radiation with redistribution mechanism is solved in contrast with Zanstra's rough treatment in which a definite form of emission and complete redistribution are assumed. The result obtained is found to be nearly the same as in Zanstra's theory. The radiation pressure due to the Lyman α radiation is so much reduced that we should be able to get rid of the blowing-up difficulty of planetary nebula in Ambarzumian's2) theory. Thus it is confirmed that the complete redistribution is a good approximation to the solution of this problem.

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Photographic Observation of Meteors

Hidewo HIROSE, Koichiro TOMITA

1950 Volume 26 Issue 6 Pages 23-28
Published: 1950
Released on J-STAGE: September 12, 2006

DOIhttps://doi.org/10.2183/pjab1945.26.6_23

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Pseudofossils from Fengning-hsien, Je-ho, similar to “Sewardiella verrucana Fucini” from Mt. Pisani

Hisakatsu YABE

1950 Volume 26 Issue 6 Pages 29-32
Published: 1950
Released on J-STAGE: September 12, 2006

DOIhttps://doi.org/10.2183/pjab1945.26.6_29

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The Studies on the Derivatives of Naphthoquinane. Part IX

The Pigments from the Sea-Urchins. IV

Chika KHRODA, Masaye OKAJIMA

1950 Volume 26 Issue 6 Pages 33-36
Published: 1950
Released on J-STAGE: September 12, 2006

DOIhttps://doi.org/10.2183/pjab1945.26.6_33

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On a Volatile Active Principle of Tuberculin

Shiro AKABORI, Yuichi YAMAMURA, Taiji SASAKAWA

1950 Volume 26 Issue 6 Pages 37-38
Published: 1950
Released on J-STAGE: September 12, 2006

DOIhttps://doi.org/10.2183/pjab1945.26.6_37

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On the Splitting of the Side Chain from Tyrosine by the Action of Aldehydes

Shiro AKABORI, Ko OHNO

1950 Volume 26 Issue 6 Pages 39-41
Published: 1950
Released on J-STAGE: September 12, 2006

DOIhttps://doi.org/10.2183/pjab1945.26.6_39

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The Effect of Transformation Stress on Electric Resistance of Pure Iron at A₃ Point

Mizuho SATÔ

1950 Volume 26 Issue 6 Pages 42-44
Published: 1950
Released on J-STAGE: September 12, 2006

DOIhttps://doi.org/10.2183/pjab1945.26.6_42

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