武汉东湖中浮游植物与鲢鱼相互作用的量的评价

以东湖郭郑湖为研究对象,将其生态系统中在质和量方面占重要地位的浮游植物-鲢作为亚系统,研究它们之间的相互作用。比较了夏季两个月中鲢的生长和让其充分摄食后的生长,发现最初20天没有差异,20天后两者开始出现差别。将两者的相互作用模型化,计算的结果是,浮游植物被鲢摄食后密度下降,而鲢得不到充足的饵料,导致生长缓慢。观察此期间的氮平衡,浮游植物所生产的氮几乎全部被鲢利用,但浮游植物所需要的78%的氮又是鲢提供的。这说明在湖区整个生态系统中,此相互作用系统在量的方面是很重要的

用浅水湖泊型鱼探仪估算东湖鱼群数量

用浅水湖泊型鱼探仪估算了武汉东湖中的鱼类个体数。鱼探仪的探头可以横向或垂直放置,水平探鱼时得到的是从湖面到1.5米深的个体鱼探图像;垂直探鱼时得到的是从1.5米到水底的个体鱼探图像。按半减半角3°计算了鱼探仪探索的水团中鱼的密度。根据每100米距离的个体鱼探图像计数值的时间系列变化以及鱼类密度的两向方差分析,发现鱼类的栖息密度随湖区的不同而异。根据各湖区鱼类当时的“现存”尾数,估计东湖郭郑湖区(11平方公里)1983年10月“现存”的鱼数为44万尾,1984年3月为112万尾

四国東部・中国地域における深部地殻構造探査

In the summer of 1999, we conducted a highly dense, onshore-offshore integrated seismic experiment in the eastern part of Shikoku Island and the Nankai Trough off Shikoku Island, SW Japan. On shore, 93 land seismic stations were deployed on a 165-km-long line in the north-south direction. The intervals of the stations were about 1-2 km. Three explosives were fired as controlled seismic sources. Off shore, an air-gun array was fired at intervals of 200 m. Seismic signals both from land explosives and the air-gun array were recorded by the land seismic stations. We obtained high signal-to-noise ratio data along the entire length of the land profile. Very prominent late arrivals, probably reflected waves from the lower crust or the upper mantle, can be recognized on the record sections. An outline of this experiment is given in this paper, and a detailed analysis showing a structure model from the upper crust to the upper mantle beneath the eastern Shikoku Island will be published in a separate paper

Clinical experience with cefmenoxime (CMX) in complicated urinary tract infections

複雑性尿路感染症106例にcefmenoximeを投与した.1)総合臨床効果は82例中61例(74.4%)が著効ないし有効であり, 膿尿に対する効果は53.2%, 細菌尿に対する効果は58.5%であった.2)起炎菌95株の菌消失率は76.8%で, 検出頻度の高かったSerratia 29株, Pseudomonas 13株の消失率はそれぞれ72.4%, 53.8%であった.3)副作用は106例中3例に認めたが, いずれも一過性で, 重篤ではなかったCefmenoxime (CMX) was intravenously administered to 106 patients with complicated urinary tract infection at a daily dose of 2-4 g for 5 days. An excellent response in overall clinical efficacy was seen in 15 cases (18.3%), a moderate response in 46 cases (56.1%) and poor response in 21 cases (25.6%). Pyuria was cleared in 20 cases (24.4%), decreased in 22 cases (26.8%) and unchanged in 40 cases (48.8%). Bacteriuria was eliminated in 41 cases (50.0%), decreased in 17 cases (20.7%), relapsed in 7 cases (8.5%) and unchanged in 17 cases (20.7%). Bacteriologically, 74 (76.8%) of the 95 strains isolated were eradicated by CMX, and 22 (23.2%) persisted. Side effects were observed in 3 (abdominal pain, diarrhea and elevation of trans amylase) of the 106 cases. Judging from the above results, CMX is considered to be a useful drug in the treatment of complicated urinary tract infections

Seismic Refraction / Wide-angle Reflection profiling in the Eastern Shikoku Island and Chugoku District

In the summer of 1999, we conducted a highly dense, onshore-offshore integrated seismic experiment in the eastern part of Shikoku Island and the Nankai Trough off Shikoku Island, SW Japan. On shore, 93 land seismic stations were deployed on a 165-km-long line in the north-south direction. The intervals of the stations were about 1-2 km. Three explosives were fired as controlled seismic sources. Off shore, an air-gun array was fired at intervals of 200 m. Seismic signals both from land explosives and the air-gun array were recorded by the land seismic stations. We obtained high signal-to-noise ratio data along the entire length of the land profile. Very prominent late arrivals, probably reflected waves from the lower crust or the upper mantle, can be recognized on the record sections. An outline of this experiment is given in this paper, and a detailed analysis showing a structure model from the upper crust to the upper mantle beneath the eastern Shikoku Island will be published in a separate paper