巻号一覧
21 巻, 1 号
選択された号の論文の7件中1～7を表示しています
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乗木 秀夫, 楯 博1966 年 21 巻 1 号 p. 1-10
発行日: 1966/04/10
公開日: 2009/04/03
ジャーナル フリーPDF形式でダウンロード (1043K) -
第1報 溺水警報器木下 正弘, 砂田 毅1966 年 21 巻 1 号 p. 11-19
発行日: 1966/04/10
公開日: 2009/04/03
ジャーナル フリーIt is very regretted that efforts to study and improve public accident prevention have been made too less than those to work accident prevention, although peoples killed in public accident are more than those in on-the-job accident. We will now make some works to approach to this problem from the point of public safety engineering, and especially devote to develop new device of accident preventing instruments.
More than 5, 000 persons die from accidental drowning a year in Japan. And more than 50% of these victims are in younger age groups. Learning to swim and acquiring of knowledge of the rules of water safety can not be expected for such younger children. Hence, besides the measures of safety education and achievement of a safety environment, more skilled engineering must be built into drowning preventing equipments and instruments. As an example of such instruments, we devised a drowning alarm. This is a very tiny (5.7×3.7×2.0cm), light-weight (29 grams), and portable instrument. When one who can not swim wearing this alarm drops or falls into the water, the alarm can be detatched from him, rise up to the water surface, and discharge alarming sound from the buzzer within it. All activities of the alarm were made to work automatically immediatoly after it came to contact with the water by light-weight silver battery provided within it. Little modified alarms useful for discharging alarming sound manually on the water to call for help while swimming, diving, fishing and boating were also developed.抄録全体を表示PDF形式でダウンロード (3212K) -
第2報 各種環境要因のMonoamineoxidaseおよびAcetylcholinesterase活性におよぼす影響小島 哲爾1966 年 21 巻 1 号 p. 20-26
発行日: 1966/04/10
公開日: 2009/04/03
ジャーナル フリーIn the previous report, the seasonal variations of monoamineoxidase (MAO) and acetylcholinesterase (Ach-E) activities were observed in the seven parts of rabbit's brains. In this report, the auther investigated the affections of the other environmental conditions (immobilization, cold and noise) on these enzyme activities in the brain parts.
The term, geographic region and experimental procedures were the same as mentioned in the previous report ecxept for the exposure to different physical environmental conditions.
The seasonal variations of enzymatic activities in the 51 adult male albino rabbits in 3 groups were observed in this report by exposing for 2 hours to the different environments: the first group was immobilized by wrapping up their limbs in supine position, the second group was exposed to the cold at -10±2°C, and the third group was exposed to a noise at the level of 100-105 phon characterized by wide octave-band specturm.
The results were as follows:
1. When the season was ignored, the increase of MAO activity in cerebellum and the decrease of Ach-E activity in myelencephalon and cerebellum under the cold condition, and the decrease of Ach-E activity in myelencephalon and cerebellum under the noise condition, were observed as compared with control groups, but under the immobilization signigcant change was not observed in any parts of the brain.
2. The same response pattern of these enzyme activities was observed in the exposure to the different three conditions, as compared with control during the same seasons. But in spite of the exposure to the same condition, a different response pattern was observed in the different season.
3. Without concerning the difference of the exposed conditions, the increase of MAO activity in the summer and the autumn, and the decrease of MAO activity in the winter and the spring, were observed especially in telencephalon, diencephalon, myelencephalon and cerebellum. On the contrary, the decrease of Ach-E activity in the summer and the autumn, and the increase of Ach-E activity in the winter and spring, were observed especially in telencephalon and myelencephalon.
From these results, it may be concluded that the each of these different conditions affected on these enzyme activities but there was no difference in the affection of the each condition, and that the seasonal variation was important for providing the control levels of these enzyme activities in the homeostatic response to another new affection.抄録全体を表示PDF形式でダウンロード (475K) -
川畑 愛義, 大山 良徳, 八木 保1966 年 21 巻 1 号 p. 27-32
発行日: 1966/04/10
公開日: 2009/04/03
ジャーナル フリーThe Nutrition status of people of post war Japan has been published by the Welfare Ministry. However we have investigated the energy metabolism and nutrition intake of students, and then we have evaluated them and attempted to set up the standard of nutrition intake for the students.
1. On the Energy Metabolism:
a) Energy metabolism of student a day was 2, 530 Cal. for male and was 2, 200 Cal. for female.
b) From the view-point of daily activity, that of students who participate in the athletic sport activities and do not engage in the sub jobs is maximal; 2, 790 Cal., that of students who do not participate in both athletic sport activities and sub jobs is minimal; 2, 400 Cal.
Same tendency was seen far female.
c) From the view-point. of the athletic sport activities, the energy metabolism of rowing was maximal, that of swimming next, judo, socker, basketball etc. progressively less, respecteivly, as far as this investigation is concerned.
d) Among the same year students belonging to the same school, the younger, the more energy metabolism.
2. On the Nutrition Intake:
a) Some students take too much nutrition, but most of students show lack of required nutrition. The lack of calcium is to the greatest extent, the lack of vitamin B2 is next, and also the lack of protein, vitamin A and vitamin B1 is considerable.
b) The unbalanced intake of nutrition elements is conspicuous among the students who pay less money for meal, and the unbalanced intake of nutrition elements can be seen even among students who pay more than 6, 000 yen a month.
c) Generally, the nutrition condition of students who come to school from parent's home is better and that of students who live in dry lodgings is worse. That of students who live in the dormitory and those who live in lodgings and are served meal is between them.
d) Among most of students, there is seen lack of not only one kind of nutrition elements, but also more than three or five elements.抄録全体を表示PDF形式でダウンロード (431K) -
第4報:騒音曝露による脳肝アンモニア増加についての検討坂口 力1966 年 21 巻 1 号 p. 33-37
発行日: 1966/04/10
公開日: 2009/04/03
ジャーナル フリーPrevious work in this series has shown an increase in the ammonia content of the brain, liver and blood under the noisy condition. The ammonia levels in the tissues will depend on the metabolic equilibrium between its production and its removal.
Therefore, in order to determine whether the increase in the ammonia content was brought about by the acceleration in its production or by the disturbance in its removal, this study was undertaken.
For the observation of the production of ammonia, the untreated rat's brain or live homogenate boiled at 100°C for 5 minutes, or 2mM glutatoione solution were used as the source of ammonia.
For the observation of the disturbance in the removal process, 2mM ammonium chloride solution was used as the substrate.
The adult male rats were exposed to noise, as previously mentioned. The brain and liver homogenate from these rats were added to the above-mentioned substrates. The reaction mixtures were inbubated at 37°C for 1 hour, and then the ammonia content of these mixtures were estimated.
Results were as follows:
a) In the ability for the production of ammonia in the brain and liver, there was no significant difference between the noise-exposed and the control animals.
b) The ability for the removal of ammonia in the brain and liver of the noise-exposed animals was lower than that of the control ones.
c) By the addition of ammonium chloride plus glutamic acid or aspartic acid to the tissue homogenates from the noise group, the ability for the removal of ammonia in the brain was still disturbed, but in the liver it returned to the control value approximately.
It may be concluded from the results of this investigation that the increase in the ammonia content in the brain and liver under the noise condition was brought about mainly by the disturbance in the removal process.抄録全体を表示PDF形式でダウンロード (353K) -
第1報 無機燐,有機燐および総燐の動態について中尾 一吉1966 年 21 巻 1 号 p. 38-43
発行日: 1966/04/10
公開日: 2009/04/03
ジャーナル フリーThe investigations were made on phosphorus metabolism in male rabbit brain under the different physical environments. The environmental factors were noise, cold and immobilization. The animals were exposed to 100-107 phon noise charactarized by wide octave band spectrum for 3 hours, to cold (-10°C±2°C) and immobilization for 90 minutes.
During exposure to each condition, the animals were killed by air puncture. The brain was removed and separated rapidly into 8 parts; right and left telencephalon, diencephalon, the upper and lower part of mesencephalon, cerebellum, pons and medulla oblongata. The each part of brain was weighed rapidly and ground in ice-cold Trichloracetic-acid solution.
Inorganic phosphorus was determined by Fiske and SubbaRow's method. The total phosphorus was determined as inorganic phosphorus after converting phosphorus in organic combination to inorganic phosphorus. Organic phosphorus was calculated by substracting the inorganic phosphorus from the total phosphorus.
As the results, in the diencephalon and upper part of mesencephalon, inorganic phosphorus content was decreased significantly under the noisy condition, but it was not seen under the cold and the immobilized condition.
The total and organic phosphorus content was not changed in exposure to each condition.抄録全体を表示PDF形式でダウンロード (407K) -
今村 晋, 芦沢 義郎1966 年 21 巻 1 号 p. 44-47
発行日: 1966/04/10
公開日: 2009/04/03
ジャーナル フリーMany bacterial strains were isolated from samples of activated sludges at sewage treatment plants in Tokyo. These organisms were tested for their ability to produce flocs in lactose broth by shake culture method.
The floc-forming organisms isolated by us (S-32, S-43-2, S-63) were non-motile, Gram negative or variable coccoid cells (0.8 to 1.2 microns in diameter) and showed following characteristics: rounded: convex, opaque colonies (1 to 2mm in diameter) with narrow zones of slight hemolysis on blood agar; no acid or gas production from lactose and glucose; gelatin was not liquefied; nitrates were not reduced. Similar floc-producing organisms were also isolated from the film covering the stones taken from the trickling filter at Maebashi sewage treatment plant in Gunma Prefecture.
Spore-forming, gram-positive rods with marked ability to liquefy gelatin were also isolated from the activated sludge. They showed almost no floc-producing ability, but mixed shake culture with the floc-forming organism (S-63) gave excellent floc-production wite clear supernatant.抄録全体を表示PDF形式でダウンロード (967K)
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