著者
Eri Kamon Chihiro Noda Takumi Higaki Taku Demura Misato Ohtani
出版者
Japanese Society for Plant Biotechnology
雑誌
Plant Biotechnology (ISSN:13424580)
巻号頁・発行日
pp.21.0519a, (Released:2021-09-18)
参考文献数
52
被引用文献数
4

Secondary cell walls (SCWs) accumulate in specific cell types of vascular plants, notably xylem vessel cells. Previous work has shown that calcium ions (Ca2+) participate in xylem vessel cell differentiation, but whether they function in SCW deposition remains unclear. In this study, we examined the role of Ca2+ in SCW deposition during xylem vessel cell differentiation using Arabidopsis thaliana suspension-cultured cells carrying the VND7-inducible system, in which VND7 activity can be post-translationally upregulated to induce transdifferentiation into protoxylem-type vessel cells. We observed that extracellular Ca2+ concentration was a crucial determinant of differentiation, although it did not have consistent effects on the transcription of VND7-downstream genes as a whole. Increasing the Ca2+ concentration reduced differentiation but the cells could generate the spiral patterning of SCWs. Exposure to a calcium-channel inhibitor partly restored differentiation but resulted in abnormal branched and net-like SCW patterning. These data suggest that Ca2+ signaling participates in xylem vessel cell differentiation via post-transcriptional regulation of VND7-downstream events, such as patterning of SCW deposition.
著者
出羽 優凪 寺井 俊二 本村 浩之
出版者
一般社団法人 日本魚類学会
雑誌
魚類学雑誌 (ISSN:00215090)
巻号頁・発行日
pp.21-020, (Released:2021-09-17)
参考文献数
15

The triplefin genus Ceratobregma Holleman, 1987 includes two valid species, the Spotted Spiny-eye Triplefin C. acanthops (Whitley, 1964) and Helen’s Triplefin C. helenae Holleman, 1987. Both are characterized by the first dorsal fin having 3 spines, the anal fin 2 spines, and the pelvic fin with one spine and 2 rays, in addition to discontinuous lateral lines (upper series of tubular pored scales and lower series of notched scales), well developed lateral ethmoids, 3 or 4 spines on the anterior margin of the orbit in males, and a scaleless opercle and pectoral-fin base. Ceratobregma acanthops is known only from the Coral Sea, whereas C. helenae is widely distributed in the eastern Indian and western Pacific oceans. A single specimen (KAUM–I. 146836, 24.3 mm standard length) of C. helenae collected from Kume-jima Island, Okinawa Islands, Ryukyu Archipelago, Japan in October 2020 possessed the following characters: first spine of 1st dorsal-fin shorter than that of 2nd dorsal-fin; caudal peduncle narrow; sides of body with orange vertical bands; and 2nd dorsal fin with a basal series of orange spots. Previous records of the species from Japan include a single specimen (BPBM 8723, 29.6 mm standard length) collected from Taketomi-jima Island, Yaeyama Islands in 1968, and underwater photographs (as Ceratobregma sp.) taken at Irabu-jima and Miyako-jima Islands, Miyako Islands, in 2002 and 2004, respectively. The two Japanese specimens were examined, that from Kume-jima Island (described in detail) representing the northenmost record for the species. The new standard Japanese name “Mikan-hebigimpo” is proposed for C. helenae on the basis of the Kume-jima specimen, “Mikan-hebigimpo-zoku” serving for the genus Ceratobregma.
著者
木下 芳一 石原 俊二 天野 祐二 清村 志乃 多田 育賢 丸山 理留敬
出版者
一般社団法人 日本消化器内視鏡学会
雑誌
日本消化器内視鏡学会雑誌 (ISSN:03871207)
巻号頁・発行日
vol.54, no.6, pp.1797-1805, 2012 (Released:2012-07-03)
参考文献数
35
被引用文献数
4

好酸球性胃腸炎の原因は明らかとはなっていないが,Th2反応をおこしやすい個人が食物抗原等に反応して消化管でのIL-5,-13,-15,eotaxin等のサイトカインの産生が高まり好酸球やマスト細胞が活性化されて消化管上皮に傷害をおこすアレルギー疾患であると考えられている.本疾患は40歳頃を発症ピークとし男女共にほぼ同様に発症するが,喘息などのアレルギー歴を有する例が多い.主訴は腹痛と下痢であることが多く,末梢血白血球の増加や好酸球の増加を80%以上の例でみとめる.粘膜に病変を有する例では内視鏡検査で,びらん,発赤,浮腫などをみとめるが,内視鏡検査では確定診断はできず複数個の生検が必須である.漿膜下に病変のある例では腹水をみとめ腹水中に好酸球を多数みとめる.治療はグルココルチコイドが主となるが,減量・中止後に再発をきたしやすく,減量を補助するため種々の抗アレルギー薬が使用されることがあるが,その有効性に関するエビデンスは十分ではない.
著者
Anas Mohammed Alhakami Sally Davis Mohammed Qasheesh Abu Shaphe Aksh Chahal
出版者
The Society of Physical Therapy Science
雑誌
Journal of Physical Therapy Science (ISSN:09155287)
巻号頁・発行日
vol.31, no.7, pp.590-597, 2019 (Released:2019-07-09)
参考文献数
43
被引用文献数
16

[Purpose] The purpose of this review is to compare the effect of McKenzie and stabilization exercises in reducing pain and disability in individuals with chronic nonspecific low back pain. [Methods] A systematic literature review of randomized controlled trials (RCTs) were performed using 6 databases. The quality of reviewed articles were assessed by the risk of bias using the Cochrane collaboration’s tool. [Results] A total of 829 articles were found from the databases, of which 10 were finally selected to be included in this review. The overall risk of bias assessment indicated that the risk of bias was low in one study and high in the other nine studies. One study reported reduced pain and two studies reported reduced functional disability in the McKenzie exercise group compared to other exercises. Two studies reported reduced pain and three studies reported reduced functional disability in the stabilization exercise group compared to other exercises. In two studies, the stabilization exercise group was as effective as McKenzie exercise group in reducing pain and functional disability in patients with chronic nonspecific low back pain. [Conclusion] Only two studies compared stabilization and McKenzie exercises in the management of chronic nonspecific low back pain. Therefore, insufficient evidence is available to draw any conclusive comparison on the effects of McKenzie and stabilization exercises in chronic nonspecific low back pain. However, both McKenzie and stabilization exercises was better than conventional exercise programs in reducing functional disability in patients with chronic nonspecific low back pain.
著者
田阪 茂樹 佐々木 嘉三
出版者
岐阜大学
雑誌
一般研究(B)
巻号頁・発行日
1992

地下千メートルの東京大学宇宙線研究所神岡地下観測所でラドンの連続観測を行っている。本研究の目的は、第1に大型タンク内の純水中に溶存しているラドン除去方法の確立と、第2に鉱内の断層湧水中のラドン濃度の変動による地震予知の基礎研究である。大型水タンクを用いた地下実験では純水中に溶け込んでいるラドンがニュートリノ検出の雑音となり、これを除去することがスーパーカミオカンデ実験における重要課題である。新たに水は通さないがラドンガスを通す機能性ガス分離膜を用いた水沈型水中ラドン検出器を開発した。この検出器を使用すると、地下水中の一万(Bgm^<-3>)の高ラドン濃度から、純水中の0.1(Bgm^<-3>)の低ラドン濃度の変化を長期間安定して測定することが可能で、カミオカンデの純水中のラドン濃度は0.5(Bgm^<-3>)という結果が得られた。また、カミオカンデのタンク内に存在する物質からのラドンの散逸率が測定された。これらの散逸率を用いてタンク内物質から放出されるタンク内のラドンの総量は83(Bg)と見積もられた。地震予知の基礎研究を目的として、鉱内の北20号断層近傍の2箇所からの湧水中のラドン濃度の変動を連続観測している。1993年7月29日に岐阜県中部でマグニチュード4.7の地震が発生した。ラドン濃度は7月19日頃から減少して、濃度が一番減少した時に地震が発生して、約25日間で元のレベルまで回復した。このような変化の様子は既に報告されている1991年2月28日の跡津川断層沿いのマグニチュード3.9の地震とかなりよく似ている。地下深部での地震予知を目的としたラドン観測は、気温・気圧・降雨などの環境要素の影響が極めて少なく、S/N比を上げるためにも大変に有効であることがわかった。またラドン観測用のワークステーション導入とシステム改良によって、遠隔地からでもラドン観測システムの監視とデータ解析ができる。
著者
三木 五三郎
出版者
公益社団法人 日本材料学会
雑誌
材料 (ISSN:05145163)
巻号頁・発行日
vol.19, no.205, pp.900-904, 1970-10-15 (Released:2009-07-09)

Special attention must be paid to the fill construction where coal ashes are used because they have particular geotechnical properties.Coal ashes are sandy coarse silt and have no plasticity. They have such small specific gravity as 2.1. Compacted coal ashes have strong shearing resistance at the optimum moisture content, but loose coal ashes have the risk of liquefaction when they are saturated.In Hisasue valley in Kawasaki city, an extensive flow slide of fill construction where coal ashes were used occurred in June, 1965. The fill consisted of loose dumping ashes and it collapsed just when it had been saturated by the seeping groundwater to the critical state.In Hodogaya in Yokohama city, a large fill construction has been built with coal ashes with special attention paid to the drainage of groundwater and to the compaction of fill material. The work has proved a success.
著者
大泉 さやか
出版者
京都大学東南アジア地域研究研究所
雑誌
東南アジア研究 (ISSN:05638682)
巻号頁・発行日
vol.52, no.2, pp.235-266, 2015-01-31 (Released:2017-10-31)
被引用文献数
1

This study investigates how the collection and study of folklore in socialist Vietnam contributed to the Communist Party of Vietnamʼs and the governmentʼs cultural policy. It focuses on the Sino-Vietnamese terminology used in the folklore studies of socialist Vietnam and explains their changes in relation to cultural policy. From the end of the 1950s, the collection of folk literature (van hoc dan gian) was promoted in provincial areas because of the Partyʼs mass cultural policy. There, both politicians and scholars recognized that the collection of folk literature could not be separated from the collection of folk arts. This led them to introduce the term van nghe dan gian (VNgDG), a phrase that combines the terms for folk literature and folk arts, to reorganize the collection. In the late 1970s, the Party strengthened its control over the cultural sphere to abolish traces of the “old regimes.” It thought that VNgDG contained many “old” elements that needed to be modified into more appropriate ones. And as China-Vietnam relations critically worsened at the end of the 1970s, VNgDG was finally criticized as being of “no use” because of its Chinese oriented content and methodology. On the other hand, scholars had to highlight the tradition of “Vietnamese culture” in order to confront the “long-lasting Chinese culture,” which led them to approach folklore from a historical perspective. At the same time, some scholars commented that VNgDG had become too “socialized” and emphasized the importance of scientific research on folklore. Consequently, they began to use the new term van hoa dan gian (VHDG), which literally means folk culture, to rejuvenate folklore studies. Currently, after the Law of Cultural Heritage was issued in 2001, the popularization of the concept of “intangible cultural heritage” (di san van hoa phi vat the) has made the status of the term “VHDG” unstable.

3 0 0 0 OA 赤堀料理全書

著者
赤堀峰吉 等著
出版者
大鐙閣
巻号頁・発行日
vol.第1編 (四季の料理), 1917
著者
小野 恭靖
出版者
日本文学協会
雑誌
日本文学 (ISSN:03869903)
巻号頁・発行日
vol.51, no.7, pp.1-9, 2002-07-10

本稿は中世を中心とする歌謡の世界に歌われた子どもの年齢範囲の規定を目指す論である。子どもは七歳から歌謡に歌われ始め、十三歳までが歌う対象年齢とされたことを指摘した。そしてその年齢は、日本民俗における子どもの概念規定と軌を一にしていることが確認できる。また、「お月さん幾つ、十三七つ……」という童謡に見える「十三七つ」について、十三歳から十七歳までの恋愛対象となる娘のことを指すのではないかとの新解釈を提示することもできた。
著者
岡村 均
出版者
一般社団法人 日本生物物理学会
雑誌
生物物理 (ISSN:05824052)
巻号頁・発行日
vol.49, no.5, pp.232-237, 2009 (Released:2009-09-25)
参考文献数
24

Most of organisms living on the earth have internal clocks and thus, the circadian rhythm represents a basic feature of life. In mammals, as in other many organisms, the cellular circadian core oscillator is thought to be composed of an autoregulatory transcription-(post)translation-based feedback loop involving a set of clock genes. The signal transduction cascade originating from this core oscillatory loop induces the expression of a variety of genes in a circadian fashion, and regulates many cellular functions such as cell division and energy metabolism. This cell oscillation system localizes in most of cells in the body. The circadian system has evolved in a close connection to light which synchronizes the internal phase to environmental rhythms. In mammals, the master clock is located in the suprachiasmatic nucleus (SCN) of the hypothalamus, from which clock signals are transmitted through neuronal and hormonal oscillation conducting systems to the whole body. Arrived clock signals entrain the cell-clocks in peripheral organs, and the intracellular oscillating loop coordinates the timing of the expression of a variety of genes with specific cellular functions. Thus, the mammalian clock system displays a multidimensional complex structure constituting the central oscillator, oscillation conducting systems, and peripheral cellular oscillators.

3 0 0 0 OA 訓蒙図彙 20巻

著者
中村惕斎 編
出版者
山形屋
巻号頁・発行日
vol.[3], 1666
著者
後藤 美穂
出版者
医学書院
巻号頁・発行日
pp.680-685, 2021-10-15

【ポイント】◆ひきこもりの居場所支援で目指すところは,「就労」ではなく「家族以外で自分が辛くない対人関係を持つこと」.◆二者関係が築けた後に,三者関係の構築を目指す.居場所は第三者と関係を構築していくトレーニングの場所.◆支援目標の主語は「私(ひきこもり当事者)」.本人(当事者)の困り事に焦点を当てた目標設定で,当事者,家族,支援者をつなぐ.