ザンビア東部の半乾燥疎開林における開墾・火入れに伴う土壌養分・トウモロコシ生育の変化

和文のものは、英文の報告の内容を要約したものとなってい

shioji sawagurumi bayashi no kozo kaiseki to koshin dotai ni kansuru seitaigakuteki kenkyu : hakushi ronbun

制度:新 ; 文部省報告番号:甲1241号 ; 学位の種類:博士(理学) ; 授与年月日:1998-03-05 ; 早大学位記番号:新2583 ; 理工学図書館請求番号:2197早稲田大

初発潰瘍性大腸炎患者を対象とした寛解導入療法におけるステロイド剤の使用実態調査

博士（薬学）北里大学2018年

日本固有種ミヤマウメモドキIlex nipponica Makino（モチノキ科）の山口県内群生地の現状

This is a preliminary study on morphology, reproductive features and habitat of Ilex nipponica Makino（Aquifo-liaceae）in Abu-cho, northern part of Yamaguchi Prefecture. The study site represents the southwestern end in the distribution of this endemic species of Japan, where there are more than 200 individuals. Although this spe-cies has been reported to exist from Tohoku to the north of Kinki Region, it has recently been revealed that it is also scattered as a relic species in mountainous districts of Chugoku Region, southwestern Japan. In Abu-cho it dominated in submerged marshes and along streams, where very few other trees or shrubs can establish them-selves. This species has many fibrous rootlets forming mat-like networks that prevent it from being washed away by inundations

Enantiomeric Separation of Mandelic Acid and Its Analogues by High Performance Liquid Chromatography with 2,6-Di-O-Pentyl-β-Cyclodextrin Coated Symmetry C_8 Column

利用合成的 2 ,6 二 O 戊基 β 环糊精涂渍SymmetryC8色谱柱 ,研究了扁桃酸及其类似物等 6种外消旋对映体的反相高效液相色谱拆分。优化了色谱分离条件 ,探讨了扁桃酸的手性拆分机理。结果表明 ,采用优化后的甲醇 水或甲醇 0 5 %三乙胺 乙酸缓冲液流动相等色谱条件 ,扁桃酸、扁桃酸甲酯、苯基甘氨酸、苯基琥珀酸和安息香等 5种外消旋对映体达到或接近基线分离 ,其中前 4种对映体均为 (S) 构型先出峰。该法可用于实际样品的对映体纯度测定。国家自然科学基金资助项目(Nｏ.20272048,203900505

Observation results by the TAMA300 detector on gravitational wave bursts from stellar-core collapses

We present data-analysis schemes and results of observations with the TAMA300 gravitational-wave detector, targeting burst signals from stellar-core collapse events. In analyses for burst gravitational waves, the detection and fake-reduction schemes are different from well-investigated ones for a chirp-wave analysis, because precise waveform templates are not available. We used an excess-power filter for the extraction of gravitational-wave candidates, and developed two methods for the reduction of fake events caused by non-stationary noises of the detector. These analysis schemes were applied to real data from the TAMA300 interferometric gravitational wave detector. As a result, fake events were reduced by a factor of about 1000 in the best cases. The resultant event candidates were interpreted from an astronomical viewpoint. We set an upper limit of 2.2x10^3 events/sec on the burst gravitational-wave event rate in our Galaxy with a confidence level of 90%. This work sets a milestone and prospects on the search for burst gravitational waves, by establishing an analysis scheme for the observation data from an interferometric gravitational wave detector