Proceedings of the Japan Academy, Series B

Interaction between the Drift Current and the Slope Current I

Koji HIDAKA

1979 Volume 55 Issue 3 Pages 99-103
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.99

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Outline of the Carboniferous Trilobites in Japan

Teiichi KOBAYASHI, Takashi HAMADA

1979 Volume 55 Issue 3 Pages 104-108
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.104

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The Large Carboniferous Strophomenides from the Akiyoshi Limestone Group and their Biostratigraphical Significance

Juichi YANAGIDA

1979 Volume 55 Issue 3 Pages 109-114
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.109

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An Interesting Mode of Occurrence of Polyptychoceras

Cretaceous Heteromorph Ammonoid

Tatsuro MATSUMOTO, Mitsutoshi NIHONGI

1979 Volume 55 Issue 3 Pages 115-119
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.115

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Black Rats from Mauritius with a New Karyotype Involving the Robertsonian Fission

A Preliminary Note

Tosihide H. YOSIDA, Hatao KATO, Kimiyuki TSUCHIYA, Kazuo MORIWAKI, Yur ...

1979 Volume 55 Issue 3 Pages 120-125
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.120

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Four black rats collected in the Mauritius Island lying in Indian Ocean have the karyotype basically categorized in the Oceanian type containing large metacentric M₁ and M₂ pairs, but 2n-number is 42 in 3 specimens and 43 in one. The increase of the chromosome number resulted from the presence of 8 small acrocentrics. These excessive acrocentrics are formed by the Robertsonian fission-type mechanism of 4 small metacentrics. One rat with 43 chromosomes has a similar karyotype to the above, except for the presence of one extra chromosome which results from the Robertsonian fission of one of the large metacentric M₁ pair.

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Chromosome Changes in Aged Human Fibroblast Cultures Each from Hurler Syndrome and Tay Sachs Disease

Michihiro C. YOSHIDA

1979 Volume 55 Issue 3 Pages 126-131
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.126

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Serial chromosome investigations in a fibroblast strain from Hurler syndrome and two strains from Tay Sachs disease have resulted in striking similarity of chromosome aberration profiles, with a marked increase in anueploidy, polyploidy, and dicentrics in the senescent phase. In addition, a high frequency of nuclear alterations and metaphases with shrinked chromosomes is noted in the three senescent fibroblast cell cultures.

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A Study of Deoxyribonucleoprotein Fibers by a Modified Freeze-Replica Method

Yuh H. NAKANISHI, Seizo FUJIKAWA, Tokio NEI

1979 Volume 55 Issue 3 Pages 132-134
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.132

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Deoxyribonucleoprotein (DNP) is extracted from calf thymus. The DNP solution is sprayed onto a specially designed specimen holder which is precooled with liquid nitrogen. The frozen specimen is deeply etched by rewarming upto -90°C at 1×10^-5 Torr, and subsequently shadowed with platinum-palladium. The freezereplica of the DNP is examined under an electron microscope. The DNP fibers with a mean diameter of 183Å are formed by a coiling of fine fibrils, 23Å in mean diameter.

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Effect of Temperature on the Proliferation and Viability of Normal and Malignant Human Cells in Culture

Hideo OKUMURA, Yasuhiro UDAGAWA, Kenichiro YAMADA, Katsumi TSUKASAKI, ...

1979 Volume 55 Issue 3 Pages 135-140
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.135

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Electron Microscopic Study on Two Types of Reflecting Cells in the Ventral Skin of the Sand Eel, Ammodytes personatus

Yoshihisa KAMISHIMA

1979 Volume 55 Issue 3 Pages 141-146
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.141

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Detection of Rheumatoid Factor from Dried Bloodstains

Shigetaka MATSUZAWA, Yukio ITOH

1979 Volume 55 Issue 3 Pages 147-152
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.147

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Interpositus Neurons Controlling Lens Accommodation

Takehiko BANDO, Akira ISHIHARA, Nakaakira TSUKAHARA

1979 Volume 55 Issue 3 Pages 153-156
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.153

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The Accessory Optic System in the Rat

The Inferior and Superior Accessory Optic Tracts

D. Takao RYU

1979 Volume 55 Issue 3 Pages 157-160
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.157

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Using the anterograde degeneration method, the accessory optic system was analized and divided into the inferior and superior accessory optic tracts in the rat. The inferior accessory optic tract terminal is sent bilaterally into the medial treminal nucleus. The superior accessory optic tract fibers are contralaterally projected into the lateral and dorsal terminal nuclei.

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The Accessory Optic Tract in the Rat

Evidence for the Retino-Suprachiasmatic Tract

D. Takao RYU

1979 Volume 55 Issue 3 Pages 161-164
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.161

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A direct fiber connection of the retino-suprachiasmatic pathway was examined by the Fink-Heimer and Nauta-Gygax techniques. It was obtained that the retino-suprachiasmatic fibers were distributed bilaterally into the suprachiasmatic nucleus in the rat. The significance of the optic-hypothalamic connection is concerned.

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Studies on Benzylation of Phenolic Hydroxyl Groups

Susumu HATSUNO, Nobuo ITO, Shigehiko SUGASAWA

1979 Volume 55 Issue 3 Pages 165-167
Published: 1979
Released on J-STAGE: October 06, 2006

DOIhttps://doi.org/10.2183/pjab.55.165

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