13 research outputs found
Bromoform concentrations in slush-layer water in Antarctic fast ice
No full textBromoform concentrations in water of the slush layer that developed at the interface between snow and sea ice were measured during the seasonal warming in Lützow-Holm Bay, East Antarctica. Mean bromoform concentration was 5.5 ± 2.4 pmol l-1, which was lower than that of the under-ice water (10.9 ± 3.5 pmol l-1). Temporal decrease in bromoform concentrations and salinity with increasing temperature of the slush water suggest that the bromoform concentrations were reduced through dilution with meltwater input from the upper surface of sea ice. In contrast, bromoform concentrations in the under-ice water increased during this period while the salinity of the under-ice water decreased. It is speculated that the sea ice meltwater input contained high bromoform concentrations from the brine channels within the sea ice and from the bottom of the ice that were contributed to the increased bromoform concentrations in the under-ice water
大阪アジア主義の理想と現実 : 1934年清水銀藏の中国旅行を中心に
No full textAfter Naitō's death, the development of Orient Culture Alliance fell into a dilemma. For the future of the alliance, Simizu Ginzō, one of the founders of the alliance, began an inspection tour in China. In this process, he met with Zheng Xiaoxu, Hu Shih, Jiang Menglin and Wu Tiecheng. After returning home, Shimizu sorted out the experience of this trip into an article mansisisatukityōdan (滿支視察歸朝談) in the tōhōbunka renmeikaisi (東方文化聯盟會誌) No. 5. Taking this article as the core, the author tries to explore this important event in the development of the Oriental Cultural Alliance by investigating and analyzing the process of Shimizu Ginzō's visit to China.陶徳民教授古稀記念号departmental bulletin pape
The Infiltration of the Cervical Carcinoma into the Vaginal Wall and the Relationship between the Cancer Infiltration into the Vaginal Wall and the Recurrence at the Vaginal Stump Section Ⅰ. The Infiltration of the Cervical Carcinoma into the Vaginal Wall Section Ⅱ. The Relationship between the Cancer Infiltration into the Vaginal Wall and the Recurrence at the Stump of the Vagina
No full textFor the carcinoma of the cervix the vaginal wall can be an object of cancer invasion, and it is closely associated with the postoperative recurrence at the stump of the vagina and also with the prognosis. In the present study the author carried out histological investigations of the vaginal wall of the patients who had Okabayashi's radical extensive hysterectomy in our clinic; and in Section Ⅰ are presented the results of investigations on the manner of cancer invasion into the vaginal wall in 160 recent unselected cases, and in Section Ⅱ the relationship between the recurrence at the vaginal stump and the vaginal-wall invasion as well as prophylactic effect of concomitant use of radium on the recurrence at the vaginal stump are described concerning 102 older specimens. Section 1. As for the invasion of the cervical carcinoma 62 cases (38.8%) out of 160 cases have been verified to have the cancer invasion, and there are some differences between the macroscopic and histological findings; and even in the 39 cases whose findings coincide with one another, in about one third of them the cancer invasion has been found 5 mm deeper in the histological examination than in the macroscopic examination. Next, the incidence of the cancer invasion into the vaginal wall is greater in more advanced age; more in the cervical canal cancer than cancer in the vaginal portion; more frequeut in Stage Ⅱ than in Stage Ⅰ; in a retrocessive type of growth; in the case where the outward appearance of the lesion is ulcerous; in the C.P.L. classification more in L-type; and more in the case where the cancer propagated to the endometrium than in the case without such apropagation; likewise in the case where the cancer propagated to the corpus uterus; and more frequent in the case with lymph node metastasis. As for the incidence of the cancer infiltration to various layers of the vaginal wall, the epidermal infiltration, the epidermal + submucous tissue, and the epidermal + submucous + muscular layers occupy two thirds of the total, and as for the invasion of each layer it is slightly more frequent in the epidermal layer. No difference can be observed in the frequency of the cancer invasion as regrads the sites of the vaginal wall (anterior, posterior, right, and left), and the cancer infiltration into the vaginal wall is always contiguous. Section Ⅱ. As regards the relationship between the cancer invasion into the vaginal wall and the recurrence at the stump of the vagina, out of 47 cases with recurrence 35 cases (74.4%) proved to have infiltration into the vaginal wall, and 8 cases had the cancer invasion penetrated as far as the vaginal stump. In those that had the recurrence at the vaginal stump the majority of them consisted of the vaginal cancer, cancer of Stage Ⅱ and Ⅲ, ulcerous exterior appearance, retrocessive type of growth, L Type, and moderately matured type. In comparing the 35 recurrent cases having the cancer invasion into the vaginal wall with those cases without recurrence at the vaginal stump, it has been clarified that the recurrence at the vaginal stump is more liable to occur in Type L with the vaginal-wall invasion and in the case whose distance between the tip of the infiltration and the stump end is less than 5 mm. Moreover, for the prevention of the recurrence at the vaginal stump taking the data in Section I into consideration, for the cases without vaginal-wall infiltration the conventional 3 cm-resection of the vaginal wall is indicated, while for the cases with vaginal-wall infiltration it is necessary to resect the vaginal wall over 1.8 cm. below the tip of macroscopic infiltration in view of the shrinkage of the specimens examined and the fact that histologically the infiltration goes deeper than macroscopic finding. In addition, when the cancer infiltration is marked and there is a danger of recurrence it is possible to prevent such a recurrence by radium therapy. In our laboratory the proximal dosage of radium used is 1,000 mg elh
An artificial pool experiment in Antarctic sea ice : effects of sea ice melting on physical and biogeochemical components of pool water
No full textWe performed an artificial pool experiment in the Antarctic multi-year land-fast ice to examine and simulate the effect of sea ice melting on physical and biogeochemical components of the sea ice field. The input of snow and ice meltwater resulted in warmer, low salinity water at the surface of the pool and probably stratification of the less dense water. Current speed measurements also pointed to water stratification within the pool. Rapid phytoplankton growth in the pool resulted in drastic decreases in concentrations of dissolved inorganic carbon and nutrients (NO3- and Si(OH)4) in the surface waters of the pool, particularly depleted for NO3-. There was high correlation between variations of dissolved inorganic carbon and nutrient concentrations, but the apparent uptake ratios of these components deviated from that generally applied to marine phytoplankton. The sequence of changes in the physical and biogeochemical components of the pool water suggests that the onset of rapid phytoplankton growth was closely related to the water stratification, which provided stable conditions for phytoplankton bloom even though the supply of nutrients from under-ice water would have declined
