182 research outputs found

    Molecular ecological adaptation and growth regulated gene of dinoflagellate Prorocentrum donghaiense

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    东海原甲藻是我国典型的赤潮藻种,近年来几乎每年都形成大规模的赤潮,造成严重的海洋生态灾害和经济损失。多年的海洋生态调查结果显示,东海原甲藻往往在磷胁迫条件下获取生态位优势从而形成赤潮。在赤潮爆发过程中主要表现为藻细胞的迅速繁殖以及生物量的快速积累。水体中色素的变化也是观测赤潮过程的重要依据。本研究在分子水平上探讨低磷东海原甲藻获取生态位优势的分子机制以及细胞快速繁殖、色素变化相关的基因表达调控机制。 在低磷条件下,东海原甲藻快速进入平台期、细胞增大、光合效率降低、单细胞RNA含量降低、细胞周期停滞在G1期。通过转录组数据分析发现,在磷限制条件下1657个基因(0.86%)表达量出现显著差异。...Prorocentrum donghaiense is a bloom-forming thecate dinoflagellate species. It forms massive blooms in the East China Sea coastal waters almost every year since 1998. This species usually prone to form blooms in low P environments. In the process of red tide explosion, the rapid propagation of algal cells and the rapid accumulation of biomass were observed. The change of pigment in water is also a...学位:博士后院系专业:海洋与地球学院_海洋生物学学号:201517006

    ソウキ ノ ゼンシン ステロイド リョウホウ ニヨリ キドウ ノ ハンコン キョウサク オ カイヒ デキタ キカンシ ケッカク ノ 1ショウレイ

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    35歳男性.入院約6週前より喀痰,咳嗽出現.数日前に左上肺空洞影指摘,喀痰中抗酸菌(3+)検出され入院.INH,RFP,PZA 及びEB による標準化学療法が開始された.咳嗽,呼吸困難,両肺野狭窄音聴取及び多量排菌持続し,気管支鏡所見上気管〜両側主気管支に隆起性潰瘍病変を認め,気管支結核を確定.高度の呼吸器症状遷延のため中等量のステロイド点滴投与を開始し,症状ならびに気道粘膜病変は改善した.高率に気管・気管支瘢痕収縮へ移行しうる気道粘膜像であったが,中等量の全身ステロイド療法により回避された.気道瘢痕狭窄回避のため,気管支結核活動性病変には中等量以上の全身ステロイド療法を考慮すべきと考えられた.A 35-year-old man admitted to the hospital because of acavitary lesion in the lung and acid-fast bacilli (AFB) (3+) in a sputum specimen, a polymerase-chain-reaction ofwhich revealed positive for M. tuberculosis. He had beenwell until approximately 6 weeks before admission, whenproductive cough developed. He also had temperature of upto 38 ℃, hoarseness, and shortness of breath couple of daysbefore. Intractable cough, dyspnea, wheeze in both lungfields, and numerous AFB in a sputum sustained, despiteprompt introduction of conventional chemotherapy containingINH, rifampicin, pyrazinamide, and ethambutol. Diagnosisof EBTB was confirmed by fibroptic bronchoscopy,which revealed granulomatous ulceration in the mucosa oftrachea and both main bronchi. Accordingly, intravenousmedium-dose methylprednisolone was administered, resultingrelief from serious respiratory manifestation and avoidanceof cicatricial stenosis of trachea and bronchi. This outcomesuggested that the current early intervention withglucocorticoid should be considered in serious active lesionof tracheal and bronchial mucosa in patients with EBTB

    ドッキョウ イカ ダイガク ビョウイン コキュウキ・アレルギー ナイカ ニオケル HIVカンセン カンジャ ノ カイセキ : トクニ ニューモシスチス ハイエン ノ ガッペイ レイ ニ ツイテ

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    獨協医科大学病院呼吸器・アレルギー内科を受診したHIV感染者を解析し,わが国および栃木県のHIV 感染者との比較検討を行った.対象は,2002年7月より2009年6月までの間,当科に受診歴のある34名(男27名,女7名,日本人29名,外国人5名),平均年齢は44.2歳(29歳〜67歳).男性の感染理由は,異性間(風俗,不特定)40.7%,同性間37.0%,女性はパートナーからの感染が57.1 %であった.64.7%がAIDS 発症によりHIV感染が判明し,HIV感染判明時の精査では79.4%がAIDSを発症しており,全症例の55.9%にニューモシスチス肺炎の合併を認めた.治療開始が推奨されているCD4陽性細胞低値(350/m l以下)は,97.1%の症例に認めた.以上の結果より,感染理由や年齢層については,全国の平均と同様な傾向を認めた.全国的には,HIV感染判明者の約7割がAIDS 発病前のキャリアの状態でHIV 感染が判明し,栃木県でも同様の傾向である.しかし,当科では大多数がAIDS 発症後およびAIDS 発症直前の低免疫状態でHIV 感染が判明しており,早期発見および早期介入が課題と考えられた.To be clear the clinical characteristics in Tochigi, we analyzedpatients with HIV infection in our department. Patientswith HIV infection between July 2002 and June 2009were 34 subjects (Man:Woman=27:7, Japanese:Foreigner=29:5), and mean age was 44.2 years old. In reasonof HIV infection for men, men who were infected by sexualintercourse with indefinite women were 40.7 % and menwho were infected by sexual intercourse with men were37.0 %. Women who were infected by their partners were57.1 %. 64.7 % of patients were recognized HIV infection byshowing AIDS. 79.4% of patients already had complicationsindicating AIDS, when they came to our hospital, and 55.9% of patients had pneumocystis jiroveci pneumonia. In 97.1% of patients, the number of CD4 positive cells were under350/m l. In conclusion, around 70 % of patients were recognizedHIV infection before they become AIDS in Japan. But,a large majority of patients in our department were withbecoming AIDS or just before AIDS. We need to developthe system of early intervention for HIV infection

    ドッキョウ イカ ダイガク ビョウイン コキュウキ ・ アレルギー ナイカ ニ オケル HIV カンセン カンジャ ノ カイセキ

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    DG-10型数字光栅测微仪

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    本文介绍一种0~10mm、分辨率1μm数字光栅测微仪,它是一种具有任意零点、高精度的测长系统,由光栅位移传感器和数显仪两部分组成。介绍了其工作原理、主要技术指标和应用

    有机染料在tio2上的吸附及对光催化降解的影响

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    在一系列酸度条件下分别研究了甲酚红、亚甲基蓝两种染料在纳米二氧化钛上吸附和光催化降解规律,发现甲酚红的光催化降解效率随着吸附量的增大而增强,而亚甲基蓝的光催化降解效率在短时间内随着吸附量的增大而减弱,长时间后又随着吸附量的增大而增强,文中同时分析了吸附对光催化效率影响的机理

    ICP-MS Simultaneous Determination of Inorganic Elements in Loquat Leaves

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    枇杷叶试样于聚四氟烯消解罐中加入硝酸及过氧化氢置于微波炉中加热消解,对所得试样溶液中的14种无机元素用电感耦合等离子体质谱法同时测定。在测定钙、锰、镁、磷及铁的试验中,测得其线性范围在0~200μg.L-1之间,用标准加入法对所测定的14种无机元素作了回收试验,所得回收率在90%~110%之间。按规定要求测定14种无机元素的检出限,测得结果在0.002~0.4μg.L-1之间。Sample of loquat leaves was digested with HNO3 and H2O2 in PTFE vessel heated in microwave oven.Fourteen inorganic elements in the sample solution were determined by ICP-MS.As shown by the data of determination of Ca,Mn,Mg,P and Fe,ranges of linearity were obtained in the range of 0-200 μg·L-1.Tests for recovery were carried out by standard addition method and values of recovery for the 14 elements determined were in the range of 90%-110%.Detection limits for these elements were in the range from 0.002 to 0.4 μg·L-1

    藏南康马县布主金(锑)矿构造控矿规律及找矿预测

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