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Volume 71 (1959 - 196･･･
- Issue 4 Pages 305-
- Issue 3 Pages 209-
- Issue 2 Pages 103-
- Issue 1 Pages 1-
Volume 71, Issue 1
Displaying 1-9 of 9 articles from this issue
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George B. Jerzy Glass, Theodore A. Jacob, Donald E. Williams, Eugene E ...1959Volume 71Issue 1 Pages 1-17
Published: October 25, 1959
Released on J-STAGE: November 28, 2008
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Effect of Estrogen on Atherosclerotic Lesions in Various Arterial Segments of Cholesterol-fed ChicksTakeo Kuroyanagi1959Volume 71Issue 1 Pages 19-25
Published: October 25, 1959
Released on J-STAGE: November 28, 2008
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A Statistical Method for Public Health InvestigationMitsuo Kamoi, Yoshio Noye1959Volume 71Issue 1 Pages 27-40
Published: October 25, 1959
Released on J-STAGE: November 28, 2008
JOURNAL FREE ACCESSWe have discussed a new graphical method, for the chi-square test, which we call “the method of chi-square paper.” Using our method, we solved the problem of 2×2, 2×n, and m×n classification and their references with sufficient rapidity and accuracy.
It is not only applicable to a small sample but more effectively to such a smaple having the large size and very small rate as appears in the public health statistics, especially in the vital statistics.View full abstractDownload PDF (506K) -
Koiti Motokawa, Eizo Yamashita, Tetsuro Ogawa1959Volume 71Issue 1 Pages 41-53
Published: October 25, 1959
Released on J-STAGE: November 28, 2008
JOURNAL FREE ACCESSThe carp's inverted retina was stimulated by a brief electric pulse of 0.5-1 msec.
1. A negative potential less than 1 mV in amplitude appeared following the stimulating pulse and lasted about 20-30 msec.
2. This potential is a graded response, and facilitated by a suitable background illumination.
3. When the intensity of the stimulus was sufficiently high, the negative potential mentioned above could be followed by a second and/or third similar responses. A positive deflection intervened between successive negative deflections.
4. Some facilitatory effects of 3% strychnine, and 5×10-4 M d-tubocurarine were observed upon the negative slow potential.
5. A monopolar stimulating microelectrode was inserted into various depths of the retina, and it was found that the retinal network intervening between the receptor cell layer and the ganglion cell layer gave the greatest responses.
6. The relation between the slow potential and unitary discharges was investigated. The discharge of an on-element was facilitated by the negative response as well as by cathodal polarization, whereas that of an off-element suffered from suppression.View full abstractDownload PDF (3087K) -
Akira Tamura, Mataro Takahashi, Haruyoshi Ishii, Seiichi Akashi1959Volume 71Issue 1 Pages 55-60
Published: October 25, 1959
Released on J-STAGE: November 28, 2008
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Tooru Nakao, Morihide Yamada1959Volume 71Issue 1 Pages 61-65
Published: October 25, 1959
Released on J-STAGE: November 28, 2008
JOURNAL FREE ACCESSDownload PDF (151K) -
Koiti Motokawa, Eizo Yamashita, Tetsuro Ogawa1959Volume 71Issue 1 Pages 67-77
Published: October 25, 1959
Released on J-STAGE: November 28, 2008
JOURNAL FREE ACCESSResponses of inverted carp's retinae to direct electric stimulation were investigated with special reference to the effects of photic stimuli.
1. The response to an electric pulse (response E) increased in amplitude under background illumination of an optimal intensity, and was suppressed by strong illumination.
2. Interaction between response E and response to light (response L) was investigated. The response E was suppressed when superimposed on a positive-going response L at the site of illumination, but facilitated when superimposed on a negative-going response L recorded in the surrounding field of an illuminated locus.
3. Electrotonus giving rise to a potential variation of the same order as the response L did not cause any appreciable effect upon the response E.
4. When a mechanical cut was made between the stimulating electrode and the recording one, no response E was obtained beyond the cut.
5. As the distance between the stimulating and recording electrodes increased, the magnitude of response E decreased, and the peak-latency was prolonged. The relation between conduction distances and peaklatencies was linear. The conduction velocity obtained from this relation was 115mm./sec. on an average. This value coincided with the conduction velocity of the negative-going response L in the surrounding field.View full abstractDownload PDF (3162K) -
Kenichi Iwatsuki, Kirnio Yokozawa1959Volume 71Issue 1 Pages 79-85
Published: October 25, 1959
Released on J-STAGE: November 28, 2008
JOURNAL FREE ACCESSThe effect of x-ray irradiation on the action of muscle relaxants was studied in rabbits. The muscle relaxants used were succinylcholine chloride (S. C. C.), d-tubocurarine chloride (dTc) and gallamine triethiodie (flaxedil). The results obtained were briefly summarized as follows:
1. The action of S. C. C. was potentiated and prolonged after x-ray irradiation on the whole body as well as on the liver. The effect was more pronounced after liver irradiation. The effect of liver irradiation was minimized by protecting the liver from x-ray.
2. The action of S. C. C. was slightly potentiated after x-ray irradiation on the head, but it was almost unaffected even after maximal irradiation on the limb concerned.
3. The action of dTc was rather antagonized after irradiation on the whole body or on the liver, whereas that of flaxedil was little affected.
4. A review of the literatures does not offer a satisfactory explanation for this experimental observation, but at least it can be said that instead of its direct effect on the end-plate, the effect of irradiation on the liver may play a great role in this phenomenon.View full abstractDownload PDF (2249K) -
Tatuo Saito, Yoneo Tsuji, Rikuro Sasaki, Yutaka Nakayama, Joji Kato, T ...1959Volume 71Issue 1 Pages 87-101
Published: October 25, 1959
Released on J-STAGE: November 28, 2008
JOURNAL FREE ACCESSDownload PDF (632K)
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