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Volume 14, Issue 2
Displaying 1-8 of 8 articles from this issue
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G. Ogawa1936 Volume 14 Issue 2 Pages 99-106
Published: February 24, 1936
Released on J-STAGE: May 24, 2011
JOURNAL FREE ACCESSSpectrological observations concerning the sterilizing power of ultraviolet rays on various kinds of bacilli have been already published by many investigators, but the results were not always definitely established and moreover no research on acid-fast bacilli, especially on tubercle bacilli, is known to the present time. This led us to perform the following experiments.View full abstractDownload PDF (2164K) -
G. Ogawa1936 Volume 14 Issue 2 Pages 107-113
Published: February 24, 1936
Released on J-STAGE: May 24, 2011
JOURNAL FREE ACCESSRegard to making the bacilli suspension, its preparation was carried out in the same manner as described in the previous chapter. (this volume of “ Kekkaku ”). The suspension was poured into the quartz test tubes with an inner diameter of 1 mm. Then these test tubes were placed in a small black box to prevent the light rays from reflection. During the experiments, author took the temperature, the relative humidity of the room, and the atmospheric pressure. After the exposure of these tubes to the direct ray of a mercury lamp at various distances and in various hours, the condition of growth of the bacilli was examined by planting on the Loewenstein's egg medium in an incubator at temperature of 37°C. At the same time, a part of the suspension was injected subcutaneously into the legs of guinea-pigs. After certain number of days the animals were killed and examined. Author compared the animal inoculation test with the culture test and secured the following results.View full abstractDownload PDF (1987K) -
G. Ogawa.1936 Volume 14 Issue 2 Pages 114-122
Published: February 24, 1936
Released on J-STAGE: May 24, 2011
JOURNAL FREE ACCESSTo know the resisting power of tubercle bacilli against the sunlight, the following experiments were undertaken. It is only different from the former test in that author have used direct sunlight instead of the mercury lamp. At a time of these experiment, only a very bright sunny day in each month of the year was chosen. The results are as follows:
1. During the summer, that is between 9 a. m. and 3 p. m. in month of May to August, tubercle bacilli were killed by the direct sunlight in 9 minutes.
2. In winter—At 11 a. m. duriug December, January an d February—the time required to kill the bacilli was 14 minutes.7 minutes in the month of April and May, 10 minutes in March and October and 12 minutes in November.3
. At the north side of a toll building where th e light only comes directory from the clear sky, the various tubercle bacilli were killed in 30—60 minutes.
4. By exposing in a diffuse light of a room in the labor a t orium, the tubercle bacilli were unharmed even in 11 hours exposure.
5. By exposing to the direct sunlight, various kinds of acid-fast bacilli under the same conditions, the timothei bacilli displayed the strongest resisting power against sunlight, and the bovine and the human type of tubercle bacilli came next in order and then the avian type which was the weakest.View full abstractDownload PDF (3782K) -
G. Ogawa1936 Volume 14 Issue 2 Pages 123-131
Published: February 24, 1936
Released on J-STAGE: May 24, 2011
JOURNAL FREE ACCESSBecause of interest to study the bactericidal power of the three chief divisions of light, namely, 1) the ultra-red, 2) the visible and 3) the ultra-violet ray, author filled 0.2% suspension of the various kinds of tubercle bacilli in small quartz test tubes o f an inner diameter of 1 mm and placed in a black box which covered with a filter glass. The filter glasses used were; UG.1 (passable for near ultra-violet rays only), BG.9 (for visible part only), RG.5 (for near ultra-red rays only) that made by the Schott Factory, Germany, and Vita-glass 2 mm in thickness, which only permits to pass the light of wavelength longer than 2536 Ä, the common window glass and some sorts of filter glasses that made by the Japanese Science Laboratory. After the several specimens of bacilli suspensions were exposed to the direct bright sunlight, and the mercury quartz lamp, they were cultivated on Loewenstein's egg medium in the incubator and examined. The results were as follows.View full abstractDownload PDF (2530K) -
Y. Kawaguchi1936 Volume 14 Issue 2 Pages 132-149
Published: February 24, 1936
Released on J-STAGE: May 24, 2011
JOURNAL FREE ACCESSDer Verfasser konnte die Ergebnisse der statistischen Beobachtungen bei 494 in der III. Medizinischen Klinik der Kaiserlichen Universität zu Fukuoka vom Januar 1927 bis zum Dezember 1933, während voller 7 Jahre, aufgenommenen Lungentuberculösen folgendermassen kurz zusammenfassen.View full abstractDownload PDF (2106K) -
1936 Volume 14 Issue 2 Pages 150-170
Published: February 24, 1936
Released on J-STAGE: May 24, 2011
JOURNAL FREE ACCESSDownload PDF (2571K) -
1936 Volume 14 Issue 2 Pages 172-173a
Published: 1936
Released on J-STAGE: May 24, 2011
JOURNAL FREE ACCESSDownload PDF (103K) -
1936 Volume 14 Issue 2 Pages 173b
Published: 1936
Released on J-STAGE: May 24, 2011
JOURNAL FREE ACCESSDownload PDF (39K)
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