38 research outputs found

    Malignant peripheral nerve sheath tumor associated with neurofibromatosis type 1, with metastasis to the heart: a case report

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    A rare case is presented of a 61-year-old man with a malignant peripheral nerve sheath tumor associated with neurofibromatosis type 1, with metastasis to the heart. The primary tumor originated in the right thigh in 1982. Since then, the patient has had repeated local recurrences in spite of repeated surgical treatment and adjuvant chemotherapy. He has developed previous metastases of the lung and heart. The patient died of cardiac involvement

    Adult phenology of two species of tiger beetles (Carabidae, Cicindelinae) and estimates of population size of Cylindela elisae , in Tottori Sand Dunes, Honshu, Japan in 2016.

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    2015年の調査に引き続き,2016年の夏季にも鳥取砂丘オアシス周辺で標識再捕により,当地で絶滅が心配されるエリザハンミョウの生息数を推定した。マークできた個体はエリザハンミョウが270(昨年は304),カワラハンミョウが170(昨年は77),コハンミョウが4(昨年は1:昨年調査の報告書である鶴崎ら2016では「コニワハンミョウ」と誤記)であった。Jolly-Seber法によるエリザハンミョウの個体数推定値はもっとも多かった調査日(6月28日と7月16日)でともに約1,460で,2015年の2,300個体よりも少なかった。おそらく2016年の夏季の高気温のため,成虫の出現期は2015年よりも早く推移し,6 月中旬には成虫が出現し,8月下旬には終息した。エリザハンミョウの幼虫の営巣地はオアシス周辺の尻無川右岸の裸地であるが,成虫は左岸のコウボウシバ群落でも見つかった。カワラハンミョウの成虫は6月下旬から10月上旬まで見られ,170個体をマークしたが再捕獲できた個体は皆無であった。コハンミョウは尻無川の近くで4個体マークしたが本種も再捕獲にいたらなかった。昨年の2個体(マークしたのは1個体)に続けての確認で,細々ではあるが,本種は当地で世代を繰り返している可能性が高い。 / Following a survey of the population size of a tiger beetle species, Cylindera elisae(Motschulsky,1859) in the Tottori Sand Dunes, Tottori City, in 2015 (Tsurusaki et al.2016), we estimated population size of the same population of the same species also in 2016 by using mark-recapture experiments. A total of 270 adults of Cy. elisae , 170 adults of Chaetodera laetescripta (Motschulsky, 1860) and 4 adults of Myriochila speculifera (Chevrolat, 1865) (This species was erroneously recorded as Cicindela transbaicalica japanensis Chaudoir, 1863 in Tsurusaki et al. 2016) were individually marked during the summer in 2016. None of those adults marked were recaptured for the two latter species. The highest number of adults of Cy. elisae estimated by the Jolly-Seber method was ca. 1,460 recorded on both 28 June and 16 July

    Guest Selectivity in Complexation of β-Chitin

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    Clay minerals of a paddy soil derived from the marine alluvium of the Ariake Sea

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    Clay and silt fractions of A and BG horizons were separated into three fractions of 20-5, 5-1, and < 1μ. Fixation capacity of ammonium, chemical composition, base exchange capacity, dehydration curves, differential thermal curves, ethylene glycol retention, electron micrographs, and x-ray diffraction patterns were obtained for these separates. It was concluded piecing togethe r various properties observed that the clay was largely composed from minerals of illite-montmorillonoid series, and as the accessary minerals halloysite, R203-hydrates, and skeletons of diatoms were found in small amounts in the clay. The silt was illitic, but it had less potash and much hygroscopic water than the illite, and quartz was found in small amounts in the 1~5 and 5~20 μ fractions.有明海周辺のその沖積土は土性の如何によらず概して豊沃である. これ等の土壌はNH1+を固定する性質があり, 特にNH1+添加後土壌を乾燥すれば固定量を著しく増加するために, 膨脹格子型鉱物(Montmorillonoid)を含むものと推定された. 本土壌が隣接の河成沖積土に比べて肥沃である理由については種々の方面から研究を行う必要を認めるが, 平坦な近接地においても両種土壌の生産力の間に差異があり, 且つ粘土含量の少ない本土壌が粘土の多い隣接河成沖積土よりも却つて高収であること, 低位収穫田に客土すれば明らかに増収することなどから窺えば, 本土壌の粘土の性質が肥沃度に重要な関係をもつものと考えられる. そこでまず有明海沖積土に由来する水田土壌の粘土について研究を行つた
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