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软斑症

国外医学.泌尿系统分册 1985年第6期 272-274页

作者： b.Deb.e ch Leleu 闵志廉

1902年Michaelis和Gutmann对两名长期患膀胱炎的女尸解剖时发现一些奇特的病变。一年后Von Hansemann起名为软斑症,并作了细致的组织学检查,强调一个重要特征:变形的巨噬细胞,后被命名为Von Hansemann细胞。此后,发表的一些文章描写疾... 详细信息

1902年Michaelis和Gutmann对两名长期患膀胱炎的女尸解剖时发现一些奇特的病变。一年后Von Hansemann起名为软斑症,并作了细致的组织学检查,强调一个重要特征:变形的巨噬细胞,后被命名为Von Hansemann细胞。此后,发表的一些文章描写疾病主要侵犯泌尿系统,至1958年后才开始报道泌尿系以外的软斑症。目前,世界上已发表了200多例,女性占4/5。最初,软斑症被看作是癌肿,接着被认为类拟于结核,肉样瘤一类疾病。至今,除了病理变化仍含糊不清外,认为大肠杆菌是起了主要作用。最近,由于在Von Hansemann细胞的呈现和Michaelis-Gutmann体的形成上获得成功,软斑症属于巨噬细胞类疾病,如同Whipple病和chediak-Higashi病,以及黄色肉芽肿性肾盂肾炎和肉芽肿性睾丸炎等

关键词：病变吞噬溶酶体大肠杆菌属药物治疗输尿管泌尿生殖系统结节免疫紊乱黄色肉芽肿性粘膜生物膜斑块病理过程包涵体巨噬细胞吞噬细胞

Carb.n-13 Solid State NMR Techniques to Evaluate the Morphology of PP/TiOb.2b. Composites

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Materials Sciences and Applications 2016年第1期7卷 20-25页

作者： Igor Lopes Soares Maria Inês b.uno Tavares André Luis b. b. e Silva Antonio Gab.iel Malagueta Feio Instituto de Macromoléculas Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil Instituto Federal do Mato Grosso IFMT Mato Grosso Brazil CENIMAT/I3N Departamento de Ciência dos Materiais Faculdade de Ciências e Tecnologia Universidade Nova de Lisboa Caparica Portugal

Solid state NMR was successfully used to determine the proton spin-lattice relaxation time in the rotating frame (T1ρH) for systems b.sed on polypropylene (PP) and PP with titanium dioxide (TiOb.2b.) organically modified or unmodified incorporated, in order to understand the molecular b.havior of these systems. These techniques were employed in the samples organically modified and unmodified TiOb.2b. to investigate the effect of organic modification on the dispersion and distrib.tion of the particles in the PP matrix. The results were analyzed in terms of the effect of the particles organic modified or not according to the intermolecular interaction in the composites. According to the T1ρH values, all composites showed at least two domains: the short values were related to the rigid part, which included the crystalline and amorphous phase constricted in it, while the longer times were attrib.ted to the amorphous region, which had higher molecular mob.lity compared to the rigid region of the materials. The increase in the relaxation time parameter in the composites compared to the pure PP was associated to the strong interaction b.tween titanium dioxide particles and the polymer chains. This effect was more pronounced for the systems containing organically modified TiOb.2b.. According to the results, it could b. inferred that intermolecular interaction occurred in the chb.2b. and ch groups, b.ing more intense with chb.2b. groups. Finally, the solid state NMR techniques were ab.e to evaluate the molecular dynamics of those systems.

关键词： NMR PP TiO2 Composites

Post-Translational Derepression of Invertase Activity in Source Leaves via Down-Regulation of Invertase Inhib.tor Expression Is Part of the Plant Defense Response

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Molecular Plant 2010年第6期3卷 1037-1048页

作者： Katharina b. b.nfig Andrea Gab.er Uwe K. Simon Nora Luschin-Eb.ngreuth Martina Hatz Susanne b.rger Naseem Muhammad Jurgen Zeier Alok K. Sinha Thomas Roitsch Julius-von-Sachs-Institut fuer b.owissenschaften Lehrstuhl for Pharmazeutische Biologie Universitaet Wuerzburg Julius-von-Sachs-Platz 2 97082 Wuerzburg Germany Institute of Plant Sciences Department of Plant Physiology University of Graz 8010 Graz Austria Zentrum for rnedizinische Grundlagenforschung (ZMF) Medizinische Universitat Graz Stiftingtalstraβe 24 A-8010 Graz Department of b.ology Plant Biology Section University of Fribourg Route Albert Gockel 3 CH-1700 Fribourg Switzerland National Institute for Plant Genome Research Aruna Asaf Ali Road New Delhi 110067 India

There is increasing evidence that pathogens do not only elicit direct defense responses, b.t also cause pronounced changes in primary carb.hydrate metab.lism. Cell-wall-b.und invertases b.long to the key regulators of carb.hydrate partitioning and source-sink relations. Whereas studies have focused so far only on the transcriptional induction of invertase genes in response to pathogen infection, the role of post-translational regulation of invertase activity has b.en neglected and was the focus of the present study. Expression analyses revealed that the high mRNA level of one out of three proteinaceous invertase inhib.tors in source leaves of Arab.dopsis thaliana is strongly repressed upon infection b. a virulent strain of Pseudomonas syringae pv. tomato DC3000. This repression is paralleled b. a decrease in invertase inhib.tor activity. The physiological role of this regulatory mechanism is revealed b. the finding that in situ invertase activity was detectab.e only upon infection b. P. syringae. In contrast, a high invertase activity could b. measured in vitro in crude and cell wall extracts prepared from b.th infected and non-infected leaves. The discrepancy b.tween the in situ and in vitro invertase activity of control leaves and the high in situ invertase activity in infected leaves can b. explained b. the pathogen-dependent repression of invertase inhib.tor expression and a concomitant reduction in invertase inhib.tor activity. The functional importance of the release of invertase from post-translational inhib.tion for the defense response was sub.tantiated b. the application of the competitive chemical invertase inhib.tor acarb.se. Posttranslational inhib.tion of extracellular invertase activity b. infiltration of acarb.se in leaves was shown to increase the susceptib.lity to P. syringae. The impact of invertase inhib.tion on spatial and temporal dynamics of the repression of photosynthesis and promotion of b.cterial growth during pathogen infection supports a

关键词： Acarb.se Arab.dopsis defense responses invertase inhib.tor protein invertase plant-microb. interactions Pseudomonas syringae.

Spectroscopic Investigation and characterizations of PAM/PEO b.ends Films

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Soft 2015年第2期4卷 9-24页

作者： Gaurang Patel Mundan b. Sureshkumar Purvi Patel Department of Physics Faculty of Science The M.S. University of Baroda Vadodara India Science and Humanities Department Dr. S & S S Ghandhy College Surat India

Polymer b.ends have b.en ob.ained in the form of dimensionally stab.e and free standing films and their properties were characterized b. different techniques. FTIR analysis and Raman spectroscopic analysis cleared the hydrogen b.nding intermolecular interaction b.tween –CONH2 groups in Poly Acrylamide (PAM) and C-O-C and –ch2OH group in Poly Ethylene Oxide (PEO). From Differential Scanning Calorimeter (DSC) the study shows that crystallinity is increasing with PEO wt%. From polymer interaction parameter we also show that the polymer b.end is miscib.e. Thermal stab.lity of films is investigated b. Thermo Gravimetric Analysis (TGA) and derivative Thermo Gravimetric Analysis (DrTG). From UV-Vis ab.orption spectra, ab.orption b.nd edge, direct/ indirect b.nd gap and optical activation energy have b.en calculated.

关键词： Polymer b.end Poly Acrylamide Poly Ethylene Oxide Thermal Properties Mechanical Properties

In Vitro Propagation of Agave guiengola Gentry Using Semisolid Medium and Temporary Immersion b.oreactors

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Phyton-International Journal of Experimental b.tany 2021年第3期90卷 1003-1013页

作者： Lucía Isab.l chávez-Ortiz JoséFrancisco Morales-Domínguez Araceli Rodríguez-Sahagún Eugenio Pérez-Molphe-b.lch Departamento de Química Centro de Ciencias BásicasUniversidad Autónoma de AguascalientesAguascalientes20131México Lab.ratorio de b.ología Molecular Vegetal Centro Universitario de la CiénegaUniversidad de GuadalajaraOcotlán47820México

Agave guiengola Gentry is an endemic plant from a very small locality in Oaxaca,*** conservation status is fragile and can rapidly *** of its scarcity,this agave has b.en used solely for ornamental purposes,b.t it could have other uses if more plants were *** vitro propagation b. enhanced axillary sprouting from stem segments was attained using Murashige and Skoog b.sal Medium(MS)as well as b.sal medium supplemented with cytokinins 6-b.nzylaminopurine(b.)or 6-(γ,γ-Dimethylallylamino)purine(2iP).The b.st treatment for shoot induction in semisolid medium consisted in MS supplemented with 2 mg l^(–1) b.,ob.aining a mean of 3.7 shoots per *** interesting responses were ob.erved,such as nodular callus induction using comb.nations of b. and 2,4-Dichlorophenoxyacetic acid(2,4-D);root induction without Plant Growth Regulators(PGR);and generation of shoot *** clusters constituted an excellent explant for micropropagation in temporary immersion b.oreactors,ob.aining a propagation rate of 43 shoots per explant with 1 min immersion and 6 h immersion *** new plants rooted and survived the transfer to *** study developed an in vitro propagation scheme to produce individuals that can b. used either for reforestation,economical purposes,or to carry out studies in this species to assess its full potential,avoiding exploitation from wild plants.

关键词： Agavaceae temporary immersion systems callus induction micropropagation

Implementation of a choline b.s(trifluoromethylsulfonyl)imide aqueous electrolyte for low temperature EDLCs enab.ed b. a cosolvent

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Journal of Energy chemistry 2022年第7期31卷 84-94,I0004页

作者： Zhuanpei Wang Francois b.guin Institute of chemistry and Technical Electrochemistry Poznan University of TechnologyBerdychowo 460-965 PoznanPoland

We report a carb.n/carb.n capacitor b.sed on micro/mesoporous carb.n electrodes with cost-effective and eco-friendly aqueous choline b.s(trifluoromethylsulfonyl)imide(ch TFSI)electrolyte with a cosolvent enab.ing low-temperature operation down to-30℃.For this purpose,a Mg O-templated hierarchical carb.n(MP98b.with an average mesopore diameter of 3.5 nm was prepared b. pyrolysis of magnesium citrate hydrate at 900℃.To reach lower temperatures,the melting point and viscosity of the aqueous electrolyte were reduced b. mixing water(W)with an organic solvent(methanol,M,or isopropanol,I)of high dielectric constant and low viscosity.5 mol kg^(-1)(5 m)ch TFSI in an optimized volume fraction of cosolvent,M_(0.75)W_(0.25),and I_(0.75)W_(0.25),showed the highest conductivity;the higher conductivity in M_(0.75)W_(0.25)(22.8 and 3.1 m S cm^(-1) at 20 and-30℃,respectively)than in I_(0.75)W_(0.25)(8.5 and0.5 m S cm^(-1)at 20 and-30℃,respectively)is attrib.ted to the lower viscosity of the M_(0.75)W_(0.25)*** electrochemical stab.lity window(ESW)of 5 m ch TFSI in M_(0.75)W_(0.25)and I_(0.75)W_(0.25)(1.6 V)on an MP98b.electrode was determined b. applying the ***,b. adjusting the mass ratio of the two electrodes,a MP98b.MP98b.capacitor using the 5 m electrolyte in M_(0.75)W_(0.25)could operate with a good life span up to 1.6 V while exhib.ting a b.tter charge propagation,greater specific capacitance,and higher specific energy than in I_(0.75)W_(0.25).

关键词： Carb.n/carb.n capacitor choline b.s(trifluoromethylsulfonyl)imide Low-temperature Aqueous electrolyte Cosolvent electrolyte Methanol Isopropanol

Platelet count/spleen diameter ratio to predict esophageal varices in Mexican patients with hepatic cirrhosis

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World Journal of Gastroenterology 2014年第8期20卷 2079-2084页

作者： Alejandro González-Ojeda Gab.no Cervantes-Guevara Manuela chávez-Sánchez Carlos Dávalos-Cob.án Susana Ornelas-Cázares Michel Dassaejv Macías-Amezcua Mariana chávez-Tostado Kenia Militzi Ramírez-Campos Anaís del Rocío Ramírez-Arce Clotilde Fuentes-Orozco Research Unit in Clinical Epidemiology Specialties Hospital of the Western Medical CenterMedical Unit of High SpecialtyMexican Institute of Social SecurityGuadalajaraCP 44340JaliscoMéxico Gastroenterology Department Hospital Civil de Guadalajara "Fray Antonio Alcalde"GuadalajaraCP 44280JaliscoMéxico Gastroenterology Department Specialties Hospital of the Western Medical CenterMedical Unit of High SpecialtyMexican Institute of Social SecurityGuadalajaraCP 44340JaliscoMéxico

AIM: To validate whether the platelet count/spleen size ratio can b. used to predict the presence of esophageal varices in Mexican patients with hepatic cirrhosis.

关键词： Platelet count/spleen diameter ratio Esophageal varices Hepatic cirrhosis Hepatitis C virus Mexican patients

汉—越委婉语对比分析及对越南汉语委婉语教学研究

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汉—越委婉语对比分析及对越南汉语委婉语教学研究

作者：丁阮宝珠（Dinh Nguy(?)n b.?)o ch(?)u）广东外语外贸大学

学位级别：硕士

委婉语是人类语言的一种普遍现象，它是人际交往的重要组成部分。对汉语和越南语委婉语进行对比研究不仅有助于增加越南学习者对汉语委婉语的了解，而且能有效提高他们的汉语交际能力。本文在前人研究的基础上，对汉语和越南语委婉语之... 详细信息

委婉语是人类语言的一种普遍现象，它是人际交往的重要组成部分。对汉语和越南语委婉语进行对比研究不仅有助于增加越南学习者对汉语委婉语的了解，而且能有效提高他们的汉语交际能力。本文在前人研究的基础上，对汉语和越南语委婉语之间的异同进行了对比研究，并提出一些教学建议。全文共分为五个部分：第一章：绪论，主要是关于委婉语的理论介绍，包括汉语委婉语界定、越南语委婉语界定、汉-越委婉语所指范围的界定，研究综述、目的、方法和意义;第二章：汉语和越南语委婉语的对比，通过比较分析二者的相似性与差异性;第三章：越南学习者学习汉语委婉语的情况调查及分析;第四章对越南学习者进行汉语委婉语教学的对策;第五章结语。希望本文能帮助越南学习者更好地认识、理解和掌握汉语委婉语，更深入地了解中国文化，帮助越南学习者提高他们的汉语水平。此外，希望本研究能有助于促进中越两国文化之间的交流。

关键词：汉语越南语委婉语对比教学

Optimal central venous pressure during partial hepatectomy for hepatocellular carcinoma

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Hepatob.liary & Pancreatic Diseases International 2013年第5期12卷 520-524页

作者： cheng-Xin Lin Ya Guo Wan Yee Lau Guang-Ying Zhang Yi-Ting Huang Wen-Zheng He Eric ch Lai Department of Anesthesiology First Affiliated Hospital of Guangxi Medical University Department of Hepatic and b.liary Surgery First Affiliated Hospital of Guangxi Medical University Faculty of Medicine The Chinese University of Hong Kong

b.CKGROUND:Low central venous pressure(CVP) affects hemodynamic stab.lity and tissue *** prospective study aimed to evaluate the optimal CVP during partial hepatectomy for hepatocellular carcinoma(HCC).METHODS:Ninety-seven patients who underwent partial hepatectomy for HCC had their CVP controlled at a level of 0 to 5 mmHg during hepatic parenchymal *** systolic b.ood pressure(Sb.) was maintained,if possib.e,at 90 mmHg or *** b.surface antigen was positive in 90 patients(92.8%) and cirrhosis in 84 patients(86.6%).Pringle maneuver was used routinely in these patients with clamp/unclamp cycles of 15/5 *** average clamp time was 21.4±8.0 *** patients were divided into 5 groups b.sed on the CVP:group A:0-1 mmHg;b.1.1-2 mmHg;C:2.1-3 mmHg;D:3.1-4 mmHg and E:4.1-5 *** b.ood loss per transection area during hepatic parenchymal transection and the arterial b.ood gas b.fore and after liver transection were ***:With active fluid load,a constant Sb. ≥90 mmHg which was considered as optimal was maintained in 18.6% in group A(95% CI:10.8%-26.3%);39.2% in group b.95% CI:29.5%-48.9%);72.2% in group C(95% CI:63.2%-81.1%);89.7% in group D(95% CI:83.6%-95.7%);and 100% in group E(95% CI:100%-100%).The b.ood loss per transection area during hepatic parenchymal transection decreased with a decrease in *** to groups D and E,b.ood loss in groups A,b.and C was significantly less(analysis of variance test,Pb.seline,the b.ood oxygenation decreased significantly when the CVP was *** excess and HCO 3-in groups A and b.were significantly decreased compared with those in groups C,D and E(Pb.ood loss,Sb.,b.se excess and HCO 3-,a CVP of 2.1-3 mmHg was optimal in patients undergoing partial hepatectomy for HCC.

关键词： central venous pressure hepatectomy b.ood loss