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Particuology 2016年第6期14卷 143-153页

作者： Amit Goel Anu Mittal S.S. Mallick Atul sharma Department of Mechanical Engineering Thapar University Patiala Punjab 147004 India

This paper presents the results of an ongoing investigation into transient pressure pulses using shan- non entropy. Pressure fluctuations （produced by gas-solid two-phase flow during fluidized dense-phase conveying） are recorded by pressure transducers installed at strategic locations along a pipeline. This work validates previous work on identifying the flow mode from pressure signals （Mittal, Mallick, ＆ Wypych, 2014）. Two different powders, namely fly ash （median particle diameter 45 μm, particle den- sity 1950 kg/m3. loosely poured bulk density 950 kg/m3） and cement （median particle diameter 15 p,m, particle density 3060 kg/m3, loosely poured bulk density 1070 kg/m3）, are conveyed through different pipelines （51 mm I.D. × 70 m length and 63 mm I.D. × 24 m length）. The transient nature of pressure fluc- tuations （instead of steady-state behavior） is considered in investigating flow characteristics. shannon entropy is found to increase along straight pipe sections for both solids and both pipelines. However, shannon entropy decreases after a bend. A comparison of shannon entropy among different ranges of superficial air velocity reveals that high shannon entropy corresponds to very low velocities （i.e. 3-5 m/s） and very high velocities （i.e. 11-14 m/s） while low shannon entropy corresponds to mid-range velocities （i.e. 6-8 m/s）.

关键词： Transient pressure fluctuations Fluidized dense phase shannon entropy Flow pattern Solid loading ratio Superficial air velocity

基于HSP72探讨通络明目方对青光眼模型大鼠RGC和视神经的保护作用

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中国中医眼科杂志 2024年第5期34卷 401-407页

作者：赵颖张珊刘子豪孙雨辰段琪邓桂江赵静如北京中医药大学东直门医院北京101121

目的探讨通络明目方调控热休克蛋白72(HSP72)对青光眼模型大鼠视网膜神经节细胞(RGC)和视神经的保护作用。方法采用Shareef-sharma法将40只大鼠建立青光眼模型,随机分为模型组(MG)和通络明目方组(TM),各20只,另将进行假手术的24只大鼠... 详细信息

目的探讨通络明目方调控热休克蛋白72(HSP72)对青光眼模型大鼠视网膜神经节细胞(RGC)和视神经的保护作用。方法采用Shareef-sharma法将40只大鼠建立青光眼模型,随机分为模型组(MG)和通络明目方组(TM),各20只,另将进行假手术的24只大鼠设为对照组(CG)。TM组大鼠每日通络明目方8.61 g/kg灌胃,CG、MG组大鼠每日等体积0.9%氯化钠注射液灌胃,连续给药21 d。造模后第1、7、14、21天时,使用眼压计测量大鼠眼压,采集大鼠造模对侧眼眼眶血0.5 mL,酶联免疫吸附法(ELISA)检测大鼠血清HSP72水平。给药完成后,苏木精-伊红(HE)染色观察大鼠视网膜形态结构,原位末端转移酶标记技术(TUNEL)检测大鼠RGC细胞数量及凋亡率,测定视网膜厚度;免疫荧光和免疫组织化学法检测RGC细胞HSP72表达。结果(1)眼压:MG组大鼠造模后1、7、14、21 d眼压均高于CG组(t_(1 d)=7.758、t_(7 d)=10.913、t_(14 d)=17.353、t_(21 d)=7.955,均P=0.000),TM组大鼠造模后7、14、21 d眼压均低于MG组(t_(7 d)=-2.604,P=0.021;t_(14 d)=-8.815,P=0.000;t_(21 d)=-4.163,P=0.001),差异均有统计学意义。其他时间比较,差异均无统计学意义(P>0.05)。(2)血清HSP72:MG组大鼠造模后1、7、14、21 d血清HSP72水平均高于CG组(t_(1 d)=16.450、t_(7 d)=23.576、t_(14 d)=13.206、t_(21 d)=8.934,均P=0.000),TM组大鼠造模后21 d血清HSP72水平高于MG组(t=5.936,P=0.000),差异均有统计学意义;其他时间比较,差异均无统计学意义(P>0.05)。(3)视网膜形态和厚度:MG组大鼠RGC出现数目减少和空泡化现象,内核层细胞开始排列紊乱、疏松,神经纤维层水肿,内核层疏松,厚度较CG组薄;而TM组大鼠视网膜RGC数目轻度减少、空泡化、内核层细胞状态与MG相比均较轻,厚度较MG组厚。(4)RGC数量和凋亡率:MG组大鼠造模后14、21 d视网膜RGC数量低于CG组(t_(14 d)=-5.886,P=0.000;t_(21 d)=-4.424,P=0.001),1、7、14、21 d RGC凋亡率高于CG组(t_(1 d)=22.165、t_(7 d)=36.737、t_(14 d)=20.285、t_(21 d)=17.176,均P=0.000);TM组大鼠造模后14、21 d视网膜RGC数量高于MG组(t_(14 d)=3.014,P=0.010;t_(21 d)=3.444,P=0.004),7、14、21 d RGC凋亡率低于MG组(t_(7 d)=-9.762、t_(14 d)=-8.639、t_(21 d)=-9.674,均P=0.000),差异均有统计学意义。其他时间比较,差异均无统计学意义(P>0.05)。(5)视网膜HSP72:CG组大鼠视网膜HSP72几乎无表达,MG、TM组HSP72随时间表达增加;相同时间点比较,TM组HSP72表达高于MG组。结论HSP72对青光眼模型大鼠RGC具有保护效应,而通络明目方可能是通过增强并维持HSP72阳性表达,以增加RGC存活率,从而保护青光眼视神经。

关键词：热休克蛋白72 青光眼通络明目方视神经眼压

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Cell atlas of CCl_(4)-induced progressive liver fibrosis reveals stage-specific responses

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Zoological Research 2023年第3期44卷 451-466页

作者： Peng-Cheng Guo Jing Zuo Ke-Ke Huang Guang-Yao Lai Xiao Zhang Juan An Jin-Xiu Li Li Li Liang Wu Yi-Ting Lin Dong-Ye Wang Jiang-shan Xu Shi-Jie Hao Yang Wang Rong-Hai Li Wen Ma Yu-Mo Song Chang Liu Chuan-Yu Liu Zhen Dai Yan Xu Amar Deep sharma Michael Ott Qing Ou-Yang Feng Huo Rong Fan Yong-Yin Li Jin-Lin Hou Giacomo Volpe Long-Qi Liu Miguel A.Esteban Yi-Wei Lai State Key Laboratory for Zoonotic Diseases Key Laboratory for Zoonosis Research of Ministry of EducationInstitute of ZoonosisCollege of Veterinary MedicineJilin UniversityChangchunJilin 130062China BGI-Hangzhou HangzhouZhejiang 310012China BGI-Shenzhen ShenzhenGuangdong 518083China Key Laboratory of Biological Targeting Diagnosis Therapy and Rehabilitation of Guangdong Higher Education InstitutesFifth Affiliated Hospital of Guangzhou Medical UniversityGuangzhouGuangdong 510799China Laboratory of Integrative Biology Guangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouGuangdong 510530China Joint School of Life Sciences Guangzhou Institutes of Biomedicine and Health and Guangzhou Medical UniversityGuangzhouGuangdong 510530China School of Life Sciences Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui 230026China College of Life Sciences University of Chinese Academy of SciencesBeijing 100049China Guangzhou Institutes of Biomedicine and Health Chinese Academy of SciencesGuangzhouGuangdong 510530China Biotherapy Centre Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdong 510630China Department of Gastroenterology Hepatology and EndocrinologyHannover Medical SchoolHannover 30625Germany Department of Hepatobiliary Surgery and Liver Transplant Center General Hospital of Southern Theater CommandGuangzhouGuangdong 510010China Department of Infectious Diseases Nanfang HospitalSouthern Medical UniversityGuangdong Provincial Key Laboratory of Viral Hepatitis ResearchGuangzhouGuangdong 510515China Hematology and Cell Therapy Unit IRCCS-Istituto Tumori‘Giovanni Paolo II’Bari 70124Italy Institute of Experimental Hematology Hannover Medical SchoolHannover 30625Germany

Chronic liver injury leads to progressive liver fibrosis and ultimately cirrhosis,a major cause of morbidity and mortality ***,there are currently no effective anti-fibrotic therapies available,especially for latestage patients,which is partly attributed to the major knowledge gap regarding liver cell heterogeneity and cellspecific responses in different fibrosis *** reveal the multicellular networks regulating mammalian liver fibrosis from mild to severe phenotypes,we generated a single-nucleus transcriptomic atlas encompassing 49919nuclei corresponding to all main liver cell types at different stages of murine carbon tetrachloride(CCl_(4))-induced progressive liver *** analysis distinguished the sequential responses to injury of hepatocytes,hepatic stellate cells and endothelial ***,we reconstructed the cell-cell interactions and gene regulatory networks implicated in these *** integrative analyses uncovered previously overlooked aspects of hepatocyte proliferation exhaustion and disrupted pericentral metabolic functions,dysfunction for clearance by apoptosis of activated hepatic stellate cells,accumulation of pro-fibrotic signals,and the switch from an anti-angiogenic to a pro-angiogenic program during CCl_(4)-induced progressive liver *** dataset thus constitutes a useful resource for understanding the molecular basis of progressive liver fibrosis using a relevant animal model.

关键词： Liver fibrosis Toxicity Single-cell and single-nucleus RNA-sequencing Hepatocytes Hepatic stellate cells Angiogenesis Cell-cell interactions Gene regulatory networks

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花生MADS-box基因片段的克隆(英文)

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花生学报 2005年第4期34卷 25-27页

作者：袁美 K K sharma 李双铃陶海腾任艳禹山林山东省花生研究所山东青岛266100 国际半干旱地区热带作物研究所

MADS-box基因是一类调控植物生长发育的关键基因.在多序列比对的基础上设计兼并引物,成功地从栽培种花生JL24 DNA中扩增得到了130 bp 的基因片段.序列比对结果表明,该片段与26个MADS-box 基因表现高度的同源性(79%～84%),这表明花生MADS... 详细信息

MADS-box基因是一类调控植物生长发育的关键基因.在多序列比对的基础上设计兼并引物,成功地从栽培种花生JL24 DNA中扩增得到了130 bp 的基因片段.序列比对结果表明,该片段与26个MADS-box 基因表现高度的同源性(79%～84%),这表明花生MADS-box片段克隆成功.

关键词： MADS-box基因基因克隆花生

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转基因水稻与野生稻(Oryza nivara sharma et Shastry)杂交后代种子萌发率

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复旦学报（自然科学版） 2008年第3期47卷 329-335页

作者：叶平扬董姗姗卢宝荣王锋苏军宋志平复旦大学生物多样性科学研究所生物多样性与生态工程教育部重点实验室上海200433 福建省农业科学研究院农业遗传工程重点实验室福州350003

种子休眠性是野生植物重要的适应性状,通过种子萌发实验可以分析种子休眠性强弱.通过人工杂交获得转抗虫基因栽培稻与一年生普通野生稻三种组合的杂种,对杂种的F3代和F4代种子采用直接萌发、打破休眠后萌发、埋土15 d和30 d 4种不同处... 详细信息

种子休眠性是野生植物重要的适应性状,通过种子萌发实验可以分析种子休眠性强弱.通过人工杂交获得转抗虫基因栽培稻与一年生普通野生稻三种组合的杂种,对杂种的F3代和F4代种子采用直接萌发、打破休眠后萌发、埋土15 d和30 d 4种不同处理来检测种子活力和萌发率.结果显示转基因杂种后代种子表现出较强的休眠性,转基因对种子活力和休眠性没有明显的影响,种子休眠性有随种子世代的增加而逐渐减弱的趋势,提示水稻转基因逃逸后有在野生稻群体中宿存和扩散的可能性,但这种可能性可能会随世代增加而下降.这为进一步研究水稻转基因逃逸风险提供了参考.

关键词：一年生普通野生稻转基因稻种子休眠萌发率种子活力转基因逃逸

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Performance and calibration of quark/gluon-jet taggers using 140 fb^(-1) of pp collisions at √s=13 TeV with the ATLAS detector

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Chinese Physics C 2024年第2期48卷 1-25页

作者： G. Aad B. Abbott K. Abeling N.J. Abicht S.H. Abidi A. Aboulhorma H. Abramowicz H. Abreu Y. Abulaiti B.S. Acharya C. Adam Bourdarios L. Adamczyk S.V. Addepalli M.J. Addison J. Adelman A. Adiguzel T. Adye A.A. Affolder Y. Afik M.N. Agaras J. Agarwala A. Aggarwal C. Agheorghiesei A. Ahmad F. Ahmadov W.S. Ahmed S. Ahuja X. Ai G. Aielli A. Aikot M. Ait Tamlihat B. Aitbenchikh I. Aizenberg M. Akbiyik T.P.A. Åkesson A.V. Akimov D. Akiyama N.N. Akolkar K. Al Khoury G.L. Alberghi J. Albert P. Albicocco G.L. Albouy S. Alderweireldt M. Aleksa I.N. Aleksandrov C. Alexa T. Alexopoulos F. Alfonsi M. Algren M. Alhroob B. Ali H.M.J. Ali S. Ali S.W. Alibocus M. Aliev G. Alimonti W. Alkakhi C. Allaire B.M.M. Allbrooke J.F. Allen C.A. Allendes Flores P.P. Allport A. Aloisio F. Alonso C. Alpigiani M. Alvarez Estevez A. Alvarez Fernandez M. Alves Cardoso M.G. Alviggi M. Aly Y. Amaral Coutinho A. Ambler C. Amelung M. Amerl C.G. Ames D. Amidei S.P. Amor Dos Santos K.R. Amos V. Ananiev C. Anastopoulos T. Andeen J.K. Anders S.Y. Andrean A. Andreazza S. Angelidakis A. Angerami A.V. Anisenkov A. Annovi C. Antel M.T. Anthony E. Antipov M. Antonelli F. Anulli M. Aoki T. Aoki J.A. Aparisi Pozo M.A. Aparo L. Aperio Bella C. Appelt A. Apyan N. Aranzabal S.J. Arbiol Val C. Arcangeletti A.T.H. Arce E. Arena J-F. Arguin S. Argyropoulos J.-H. Arling O. Arnaez H. Arnold G. Artoni H. Asada K. Asai S. Asai N.A. Asbah J. Assahsah K. Assamagan R. Astalos S. Atashi R.J. Atkin M. Atkinson H. Atmani P.A. Atmasiddha K. Augsten S. Auricchio A.D. Auriol V.A. Austrup G. Avolio K. Axiotis G. Azuelos D. Babal H. Bachacou K. Bachas A. Bachiu F. Backman A. Badea P. Bagnaia M. Bahmani A.J. Bailey V.R. Bailey J.T. Baines L. Baines O.K. Baker E. Bakos D. Bakshi Gupta V. Balakrishnan R. Balasubramanian E.M. Baldin P. Balek E. Ballabene F. Balli L.M. Baltes W.K. Balunas J. Balz E. Banas M. Bandieramonte A. Bandyopadhyay S. Bansal L. Barak M. Barakat E.L. Barberio D. Barberis M. Barbero M.Z. Barel K.N. Barends T. Barillari M-S. Barisits T. Barklow P. Baron D.A. Baron Mo The ATLAS Collaboration

The identification of jets originating from quarks and gluons,often referred to as quark/gluon tagging,plays an important role in various analyses performed at the Large Hadron Collider,as Standard Model measurements and searches for new particles decaying to quarks often rely on suppressing a large gluon-induced *** paper describes the measurement of the efficiencies of quark/gluon taggers developed within the ATLAS Collaboration,using √s=13 TeV proton–proton collision data with an integrated luminosity of 140 fb^(-1) collected by the ATLAS *** taggers with high performances in rejecting jets from gluon over jets from quarks are studied:one tagger is based on requirements on the number of inner-detector tracks associated with the jet,and the other combines several jet substructure observables using a boosted decision tree.A method is established to determine the quark/gluon fraction in data,by using quark/gluon-enriched subsamples defined by the jet *** in tagging efficiency between data and simulation are provided for jets with transverse momentum between 500 GeV and 2 TeV and for multiple tagger working points.

关键词： ATLAS JET QUARK GLUON TAGGING