巻号一覧
50 巻, 1 号
選択された号の論文の4件中1～4を表示しています
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総説
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森脇 洋, 中野 武2006 年 50 巻 1 号 p. 3-11
発行日: 2006年
公開日: 2006/02/08
ジャーナル フリーPolychlorinated biphenyls (PCBs) remain an important group of environmental contaminants whose toxicity is of major concern. Recently, it has become clear that PCB metabolites, such as hydroxylated PCBs, methylsulfonyl PCBs and catechol metabolites of PCBs, show various toxicities and that such metabolites play an important role in the toxicity of PCBs. In the present report, the toxicities of PCB metabolites are summarized.抄録全体を表示PDF形式でダウンロード (258K) -
今井 長兵衛2006 年 50 巻 1 号 p. 12-26
発行日: 2006年
公開日: 2006/02/08
ジャーナル フリーTextbooks and papers from both the social and the natural sciences were reviewed in the context of the concept of the environment and the subject matter of environmental biology. Basing on the results, the author concluded that the environment is a subject-dependent entity that is realized only when we take into consideration a living organism as subject, including humans. The human environment consists of many environmental factors, each of which is distributed, at a distance from a human or human group as subject, in an epistemological, non-physical space. A human subject can shorten the epistemological distance from its environmental factors by intensifying recognition of the environment. We can thus recognize the global environment in spite of its physical distance from our bodies. Environmental biology is an environmental science which deals with complex interactions in humans as subject, other living organisms as “second subject” and their environments. The major issues of environmental biology are the human impact on living organisms and vice versa, the impact of living organisms on environments and vice versa, the conservation or reconstruction of biological diversity, and, as a final goal, the establishment of sustainable coexistence between humans and other living organisms.抄録全体を表示PDF形式でダウンロード (466K)
資料
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稲川 健太郎, 河合 信宏, 小野 郁, 助川 英治, 津布久 昌二, 高橋 迪雄2006 年 50 巻 1 号 p. 27-32
発行日: 2006年
公開日: 2006/02/08
ジャーナル フリーWe found in our previous study that glycine ingestion (3 g) before bedtime significantly produced subjective sleep effects in volunteers who had been continuously experiencing unsatisfactory sleep. Further, a series of published reports has shown that the safety of glycine is relatively high. The present study was conducted to assess acute adverse events or a daytime sleepiness effect after using a 3-fold higher dose (9 g) than the previous study. The results indicated that 9 g doses of glycine produced changes in several clinical test parameters, which were however within the range of physiological normal variation, and changes in blood level of some amino acids, which also were considered to be within or very close to the range of physiological normal variation. Digestive symptoms occurring only after the bedtime ingestion were observed; though these possibly were adverse events, they were not serious. Further, glycine did not produce daytime sleepiness. It could be concluded that 9 g of glycine produced neither acute serious adverse events nor a daytime sleepiness carry-over effect.抄録全体を表示PDF形式でダウンロード (63K) -
廃棄物埋立処分地から発生するメタンガスを利用した木炭製造とその有効利用調査平賀 良, 上田 博, 藤川 輝昭, 芳倉 太郎, 安部 郁夫2006 年 50 巻 1 号 p. 33-42
発行日: 2006年
公開日: 2006/02/08
ジャーナル フリーOsaka City in Japan has been developing simple technology applicable at landfill sites that allows the landfill gas to be used to make activated carbon from scrap wood and other waste materials. In the framework of a CDM project, the authors conducted experiments to verify whether these technologies can be applied to the San Mateo Landfill site in the Philippines.
The CDM pilot project carried out at the San Mateo landfill site confirmed that charcoals made from waste wood, bamboo, and coconut shell using methane as fuel are not only good as fuel but also excellent materials for the production of activated carbon. We used these activated carbons to treat leachate and confirmed their great effectiveness. The activated carbon materials could be used as adsorbent and were demonstrated to have excellent effectiveness in tasks such as the removal of organic matter and nitrogenous substances in the leachate.
If this CDM improvement project is continued from October 2002 to the end of 2012, reduction in methane emissions of about 880,000 tons will be possible at waste disposal sites in the Metropolitan Manila area, which will lead to a reduction of about 18,400,000 tons in greenhouse gas emissions. It is therefore thought that this CDM project can contribute greatly to the prevention of global warming.抄録全体を表示PDF形式でダウンロード (383K)
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