ASCAPLOT ニ ヨル キョクコウ シュツゲン ヒンド ノ スイソク

1959年及び1960年のAscaplotに対し,簡単な統計をとって,昭和基地における極光の時間空間的出現頻度を求めた.極光は特に南方によく出現し,また真夜中以後に出易いが,著しい季節変化はない.1959年のデータについてはK磁気指数との相関を調べ,K指数と極光活動度が略比例すること,並びにK指数の大きい場合,極光帯は低緯度側に拡がることが確かめられた.This paper reports on the occurrence frequency of aurora derived from ascaplots, observed at Syowa Station in 1959 and 1960. Aurora was frequently in the south and after midnight. The correlation between K index at Syowa Station (K_s) and auroral activity was also discussed

LUETZOW-HOLM ワン ノ AURORA

1957年の2月と3月,我々JARE I(第1次日本南極地域観測隊)の極光班は, Luitzow-Holm湾にあって,宗谷の船上で南極光を観測した.此の結果,Lutzow-Holm湾一帯は,丁度極光最頻度帯の真下に当っていることが判明した.ここで観測された極光の諸性質は,本質的には北極光と相違はなかった

オーロラ ノ ブンルイ ト ショウワキチ フキン ニオケル キョクコウタイ ノ イチ

1959年日本南極第3次越冬隊は,昭和基地に於ていくつかのオーロラの光学的観測を行なった.観測地点は南緯69度00分,東経39度35分,高度14米である.全天カメラのフィルムと分光器のフィルムを統計的に調べることにより,オーロラ最頻度帯は昭和基地の南方に位置すること,ならびにオーロラは大別して,(a)黄緑色のもの,(b)下縁の赤いもの,ならびに(c)上部赤或いは全部赤いものの3種類に分けられることが明らかとなった.極光帯の位置はこれら3種類のオーロラの各々について少しずつ異なり,又局所時によってもその位置を変えることが判明した.In 1959 III JARE (the third Japanese Antarctic Research Expedition) performed several optical observations of aurora at Syowa Base which is located at 69°00\u27S, 39°35\u27E and 14m above sea level. From statistical treatment of the all sky camera films and spectra, it has become known that the auroral maximum zone lies to the south of Syowa Base and aurora can be classified into the following three types ; (a) yellow-greenish aurora, (b) aurora with red lower border, and (c) entirely red aurora or only the upper part red. It has also been unraveled that the position of auroral zone may be distinguished by its type and the position of each zone varies with local time

A Splice Variant of ASC Regulates IL-1β Release and Aggregates Differently from Intact ASC

The apoptosis-associated speck-like protein containing a caspase recruit domain (ASC) is involved in apoptosis and innate immunity and is a major adaptor molecule responsible for procaspase-1 activation. ASC mRNA is encoded by three exons: exons 1 and 3 encode a pyrin domain (PYD) and caspase recruit domain (CARD), respectively, and exon 2 encodes a proline and glycine-rich (PGR) domain. Here, we identified a variant ASC protein (vASC) lacking the PGR domain that was smaller than full length ASC (fASC) derived from fully transcribed mRNA and searched for differences in biochemical and biological nature. Both fASC and vASC were found to activate procaspase-1 to a similar degree, but the efficiency of IL-1β excretion was significantly higher for vASC. There was also a marked structural difference observed in the fibrous aggregates formed by fASC and vASC. These results suggest that although the PGR domain is dispensable for procaspase-1 activation, it plays an important role in the regulation of the molecular structure and activity of ASC

Semivectorial Mode Analysis of a Rib Waveguide by an Imaginary-Distance Beam-Propagation Method Based on the Generalized Douglas Scheme

The field profile and effective index of a rib waveguide are calculated using an improved semivectorial beam-propagation method using the imaginary-distance procedure. Convergence behavior of the effective index is compared with that obtained by the conventional Crank-Nicholson scheme and with that derived from a Bierwirth-type formula, demonstrating the effectiveness of the present method. Field discontinuities at the interface between different materials are clearly displayed