997 resultados para Pere Felip Monlau
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1. ATALA - IKERKETAK / 1ª PARTE - INVESTIGACIONES: I. Euskal Herriko komunikabideetako dokumentazio zerbitzuen analisia. Teresa Agirreazaldegi, Mª Milagros Ronco eta Idoia Camacho. II. Los documentalistas en las redacciones digitales de prensa y televisión: nuevos retos profesionales. Pere Masip, Josep Lluís Micó y José Alberto García Avilés. III. Documentación digital y gestión de contenidos en la televisión de hoy. Carmen Peñafiel y Nereida López. IV. Los documentos audiovisuales y su conservación. Mª Milagros Ronco López. V. Tresna linguistikoak informazioa atzitzeko. Eneko Agirre eta Iñaki Alegria. VI. Sarean Zer? Interneteko berriak lotzeko baliabidea. Gregorio Hernández. 2. ATALA - PROFESIONALEN EKARPENAK / 2ª PARTE - APORTACIONES PROFESIONALES: VII. Euskadi Irratiko Artxiboa. Iñigo Ceberio. VIII. Catalogación y ambientación del sonido en radio y televisión. Itziar Mendia. IX. El área de archivo en el proyecto de digitalización de ETB. Jesús Andérez. X. Media Asset Management (M.A.M.) y plataformas de digitalización de contenidos de ETB. Koldo Lizarralde. XI. El servicio de documentación de la agencia de noticias Atlas País Vasco. Sonia Guardado. XII. Sistema de trabajo del centro de documentación del periódico El Correo. Jesús Oleaga. XIII. La documentación del grupo Vocento. Mauricio Martín XIV. Berria egunkariaren dokumentazio zerbitzua: bi datu-base kazetarien zerbitzura. Margari Eizagirre eta Jon Barandiaran. XV. El servicio de documentación del Grupo Noticias. Isabel Muñoz e Itziar Aldaz. XVI. La hemeroteca de EITB: la orientación al cliente. Marta Iturregi. XVII. Euskarazko tokiko hedabideen balio dokumentalaz. Joxe Rojas. XVIII. Hemeroteka Plus: publikazio idatzien ustiaketa digitala. Julen Arrizabalaga.
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Índice: - El cambio político postfranquista en el cine de su tiempo: "El disputado voto del señor Cayo". - La primera generación del postfranquismo. - El País Vasco, ¿una transición diferente? "Sombras de una batalla". - El País Vasco: ¿la cuestión pendiente de la transición? "Yoyes" de Helena Taberna. - "Cría cuervos", la representación del universo femenino en una película de la transición. - La España de los 80 en el cine de Pedro Almodóvar. - Continuidades y cambios sociales en la transición y democracia. - España fin de milenio: sobre "El día de la bestia" (Alex de la Iglesia, 1995). - Otras películas sobre la transición y la etapa socialista.
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After stroke, white matter integrity can be affected both locally and distally to the primary lesion location. It has been shown that tract disruption in mirror's regions of the contralateral hemisphere is associated with degree of functional impairment. Fourteen patients suffering right hemispheric focal stroke (S) and eighteen healthy controls (HC) underwent Diffusion Weighted Imaging (DWI) and neuropsychological assessment. The stroke patient group was divided into poor (SP; n = 8) and good (SG; n = 6) cognitive recovery groups according to their cognitive improvement from the acute phase (72 hours after stroke) to the subacute phase (3 months post-stroke). Whole-brain DWI data analysis was performed by computing Diffusion Tensor Imaging (DTI) followed by Tract Based Spatial Statistics (TBSS). Assessment of effects was obtained computing the correlation of the projections on TBSS skeleton of Fractional Anisotropy (FA) and Radial Diffusivity (RD) with cognitive test results. Significant decrease of FA was found only in right brain anatomical areas for the S group when compared to the HC group. Analyzed separately, stroke patients with poor cognitive recovery showed additional significant FA decrease in several left hemisphere regions; whereas SG patients showed significant decrease only in the left genu of corpus callosum when compared to the HC. For the SG group, whole brain analysis revealed significant correlation between the performance in the Semantic Fluency test and the FA in the right hemisphere as well as between the performance in the Grooved Pegboard Test (GPT) and theTrail Making Test-part A and the FA in the left hemisphere. For the SP group, correlation analysis revealed significant correlation between the performance in the GPT and the FA in the right hemisphere.
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A radioterapia é uma das modalidades terapêuticas mais utilizadas no tratamento do câncer, visando à destruição das células neoplásicas, a partir da utilização de radiação ionizante. Um dos fatores limitantes da radioterapia é o dano em tecidos sadios vizinhos ao tumor. A irradiação da pele, acidental ou para fins terapêuticos, pode desencadear uma série de lesões culminando na fibrose, o que implica na alteração funcional deste órgão. A avaliação dos efeitos morfológicos associados à irradiação da pele torna-se fundamental para estabelecer estratégias de irradiação mais eficazes e diminuição da morbidade; e em caso de acidentes, adequado manuseio da vítima. O objetivo deste estudo foi avaliar as alterações dérmicas radioinduzidas, utilizando um modelo em ratos. Ratos Wistar, machos, com três meses de idade, tiveram sua pele irradiada, em um campo de 3cm2, com doses únicas de 10, 40 e 60 Gy de elétrons com energia nominal de 4MeV. Após a irradiação, os animais permaneceram sob avaliação constante, sendo as lesões registradas fotograficamente. Os animais foram divididos em grupos e eutanasiados: no dia da irradiação, 5, 10, 15, 25 e 100 dias após a irradiação. Parte da pele foi fixada em formaldeído, incluída em parafina e submetida à microtomia. Os cortes foram corados com hematoxilina-eosina, picrosirius red e imunomarcados com anticorpo anti-TGF-beta1. Outra parte do tecido foi fixada em glutaraldeido e processada para microscopia eletrônica de varredura. Foi observado macroscopicamente o surgimento de lesões cutâneas semelhantes a queimaduras em toda área irradiada. Ao microscópio óptico foi verificado o inicio de desenvolvimento de lesão 5 dias após irradiação. Decorridos 10 dias da irradiação observou-se indícios de cicatrização epidérmica abaixo da crosta formada pela lesão. Aos 15 dias após a irradiação o tecido abaixo da lesão apresentava epiderme reconstruída e características de cicatrização tecidual. Foi visualizado também um infiltrado de polimorfonucleares significativo. Após 25 dias nas doses mais elevadas as lesões persistiam, o que não ocorreu na menor dose, na qual a área irradiada dos animais já se encontrava completamente cicatrizada. Após 100 dias da irradiação na dose de 40 Gy ocorreu a cicatrização da ferida. Na dose de 60 Gy em alguns animais a lesão persistia. Nos animais em que ocorreu a cicatrização houve uma hipertrofia da epiderme (acantose). Foi visualizado um tecido com aspecto morfológico totalmente descaracterizado, e necrosado. Os resultados encontrados na analise através de microscopia eletrônica de varredura corroboram os dados encontrados na microscopia de luz, onde observou-se a descaracterização das fibras de colágeno nas doses mais elevadas. Os resultados indicam que as doses utilizadas induziram um processo inflamatório importante na pele, ativando o sistema imunológico. Este fato promoveu um aumento na expressão do TGFbeta1, um dos responsáveis pelo aumento da produção da matriz extracelular por vários tipos celulares, principalmente por fibroblastos em tecidos lesionados. Alem do aumento de expressão da MEC, o TGFbeta1 também promove a inibição dos processos de degradação da mesma. A intensa expressão desta citocina na pele irradiada pode desencadear o processo de fibrose e, conseqüentemente, afetar a homeostase deste órgão devido ao acúmulo da MEC.
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对Egonol龙胆三糖苷及以Egonol衍生物对雌二醇生成活性及其相关机制进行了研究。发现Egonol龙胆三糖苷促雌二醇最高生成率在MCF-7、HepG2、ROS1728中分别为157% 、182.4%、226.8%(以空白组200μg/ml睾酮转换成E2值作为100%生成率)。活性的强弱可能与芳香化酶的组织特异性表达情况一致,说明Egonol龙胆三糖苷促雌二醇活性可能与芳香化酶有关。芳香化酶的组织特异性表达与特异性启动子有关系,Egonol龙胆三糖苷在各组织中皆有促雌二醇活性,说明该化合物不是通过调节该酶的基因表达而起作用。 在探究Egonol龙胆三糖苷及其衍生物是否介导cAMP-PKA途径从而影响芳香化酶的表达中,发现该系列化合物在HEK-293T细胞中对cAMP的影响非常弱小。在人HepG2细胞中显示了极强的提高cAMP的作用。而化合物对cAMP的作用与其促雌二醇活性强弱不呈正相关关系,对c AMP-PKA途径的激活可能与胞内雌激素有关。 Egonol龙胆三糖苷及其衍生物对HepG2细胞增殖影响显示,该系列化合物同雌二醇一样有相似的较弱促HepG2细胞增殖作用。而且存在一定剂量依赖性。在瞬时转染有ERE(雌激素作用元件)的HepG2中,Egonol龙胆三糖苷及其衍生物也显示了类似于雌二醇与ERE结合的作用,进一步提示Egonol龙胆三糖苷及其衍生物在HepG2细胞中具备雌激素样作用。 为研究Egonol龙胆三糖苷及其衍生物是否可能直接提高芳香化酶的活性,我们计划将芳香化酶从芳香化酶阳性细胞中克隆后表达到芳香化酶阴性的细胞中。在MCF-7细胞中以Oligo dT为引物合成的cDNA模板,和在ROS1728细胞中以Oligo dT及大鼠引物F链为引物合成的cDNA模板能成功扩增出与芳香化酶全长编码序列大小一致的片段。 Egonol衍生物在HepG2、ROS1728细胞中促雌二醇活性的实验表明,Egonol苯环上引入其它基团可以提高Egonol的活性。 从雌激素经典的基因组效应和非基因组效应两方面对雌激素信号转导研究进展进行了简单的综述。 The promoting effects of egonol gentiotrioside and egonol derivatives on the synthesis of estrogen E2 were studied. In vitro test, egonol gentiotrioside promoted the synthesis of estrogen E2 in MCF-7, HepG2,ROS1728 cell lines with mean yields of estrogen E2 57%,82.4% and 126.8%, higher than those of blank control at a concentration of 100 mg/ml. The difference of estrogen E2 synthesis promoting effects among the cell lines suggested tissue specificity. It is in accordance with tissue specific character of aromatase expression. The evidence implied that effect of egonol gentiotrioside on promoting the synthesis of estrogen E2 was related to the aromatase. Different expression levels of aromatase in different tissues are attributed to their specific promoters, but egonol gentiotrioside can promote the synthesis of estrogen E2, in many tissues,so the fact is controversary to the estimation that this compound regulates the aromatase on gene level. In order to investigate whether egonol gentiotrioside and its synthetic derivatives regulates aromatase activity through the cAMP-PKA signal pathway,we transfected the p CRE-Luc luciferase reporter gene into the HEK-293T cells and HepG2 cells. These compounds had weak activity in promoting the cAMP activity in HEK-293T cells but strong in HepG2 cells.The compounds’effect of promoting the cAMP may be related to their estrogenic activity in cells. The modified HepG2 cell proliferation assay was used to evaluate the estrogenic activity of egonol gentiotrioside and its derivatives. The weak estrogenic activity of egonol gentiotrioside and its derivatives at various concentrations expressed as proliferative effect relative to that of blank control was examined. We transfected the pERE-Luc luciferase reporter gene into the HepG2 cells. These compounds possessed significant activity on estrogen response element compared with the one treated with 10 n M estrogen E2. This evidence indicated that the estrogenic activity of egonol gentiotrioside and its derivatives. In order to investigate whether the egonol gentiotrioside and its derivatives can upregulate the activity of aromatase directly, The full-length of P450 aromatase cDNA encoding aromatase were amplified by using primer Oligo dT in MCF-7,and specific primer in ROS1728,respectively. The structure-activity relationship of Egonol in promoting the synthesis of E2 in HepG2 and ROS1728 cells indicated that introduction of some group on the basic sketon of egonol could improve the effect. The progress in research of signal pathway of estrogen in recent years was summarized.
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雌激素是人体内重要的激素之一,具有广泛的生理功能。雌激素缺乏与许多疾病相关,如卵巢功能低下,更年期综合征以及骨质疏松等;雌激素过剩也将导致某些疾病,如乳腺癌、卵巢癌、子宫内膜癌等。目前,如何降低肿瘤组织中的雌激素水平而达到治疗肿瘤的目的,已经得到广泛的研究,但促雌激素生成或调节卵巢功能药物或其相关研究则很少。 本实验室前期的研究发现,瓦山安息香属植物果实中的乙醇提取物具有促雌激素生成作用,通过活性追踪和结构鉴定,确认促E2 生成的主要成分为苯并呋喃类化合物。苯并呋喃类化合物的作用与芳香酶有关,但其确切的作用机理有待证实和深入研究。 为了探讨安息香苯并呋喃类化合物的促雌激素合成的作用机理,拟采用如下的实验方案: 1、细胞学方面,对小鼠3T3-L1 前脂肪细胞、人乳腺癌细胞MCF-7、MDA-MB-231 以及人卵巢癌细胞OVCAR-3、OVCAR-4、OVCAR-5、OVCAR-8、IGROV1 等细胞株,采用RT-PCR 和ELISA 方法研究芳香酶Aro基因的表达和雌二醇E2 的生成,芳香酶抑制剂Formestane 作为阳性对照,研究时效曲线和量效曲线,确定安息香苯并呋喃类化合物SP25 的有效浓度和作用时间。 2、RNAi 方面,设计合成了针对人芳香酶Aro基因的3 对RNAi 序列,转染入细胞,芳香酶促进剂Forskolin 和地塞米松、芳香酶抑制剂Formestane 作为阳性对照,采用实时定量PCR 技术,研究RNA 干扰后,安息香苯并呋喃类化合物SP25 对人芳香酶Aro基因表达水平瓦山安息香苯并呋喃促雌激素合成的机理研究的影响。 3、雌激素受体方面,设计一段ERE 的雌激素调控元件,构建重组荧光素酶报告基因载体,瞬时转染人乳腺癌细胞株MDA-MB-231,建立针对雌激素受体的报告基因筛选模型,观察安息香苯并呋喃类化合物SP25 对雌激素受体的选择性和亲和力,从受体水平考察安息香苯并呋喃类化合物SP25 促进雌激素生成的药理学机理。 实验结果显示: 1、分化后的小鼠3T3-L1 前脂肪细胞、人乳腺癌细胞MCF-7 、MDA-MB-231 以及人卵巢癌细胞OVCAR-3、OVCAR-4、OVCAR-8 等细胞株具有芳香酶基因的表达。睾酮向雌二醇的转化能够被芳香酶抑制剂Formestane 所阻断,其中OVCAR-3 最适合进行下一步的RNAi研究。 2、RNAi 实验结果显示,设计的3 对RNAi 序列中R2 的干扰效果最强,相应的阴性对照C2 与R2 的表达量相差118 倍(24 小时)和19 倍(48 小时),显示R2/C2 这组序列可用于进一步的RNAi 试验。以R2 干扰OVCAR-3 细胞株,药物作用24、48 小时后,芳香酶抑制剂Formestane 与R2 相对表达量相比分别为0.83 倍和0.04 倍;芳香酶促进剂Forskolin 与R2 相对表达量相比分别为3.61 和1.84 倍;芳香酶促进剂地塞米松与R2 相对表达量相比分别为5.76 倍和3.49倍;苯并呋喃类化合物SP25 与R2 相对表达量相比分别为8.13 倍和4.59 倍。实验证实安息香苯并呋喃类化合物SP25 能够促进因RNAi 而发生基因沉默的人芳香酶Aro表达水平的上调。 3、雌激素受体实验结果显示,构建成功重组pERE-pGL3-promoter 荧光素酶报告基因载体和基于报告基因系统的雌激素受体激动剂或拮抗剂的细胞筛选模型。实验结果表明安息香苯并呋喃类化合物SP25 与雌激素受体ERα和ERβ亲和力选择性之比约为3:1 ,SP25通过与雌激素受体ERα结合作用其受体,刺激芳香酶的表达。 本课题通过RNA 干扰、ELISA、荧光实时定量PCR、报告基因筛选模型等技术手段,从细胞水平、蛋白酶水平和基因表达水平、雌激素受体水平等方面系统地研究了从瓦山安息香属植物果实中提取的苯并呋喃SP25 促进促雌激素生成的机理研究。试验结果显示苯并呋喃类化合物SP25 促雌激素生成的主要作用机制是直接促进芳香酶基因表达水平,以及与雌激素受体a 结合,刺激芳香酶活性。 Estrogen is an important hormone that has versatile physiologicalfunctions. Lack of estrogen will lead to many diseases such as lower ovarianfunction, climacteric syndrome and osteoporosis. Excessive estrogen alsoinduces breast carcinoma, oophoroma and endometrial carcinoma and otherdiseases. To depress the estrogen level in tumor tissue to cure carcinomawas widely studied, but there is only few studies reported on the induction ofestrogen and on the regulation of ovary function. We found that the extracts from seeds of Styrax perkinsiae couldpromote the synthesis of estrogen. The active compounds benzofurans wereidentified. Effect of benzofurans may be related to aromatase, but the mechanism was not clear. To reveal the mechanism of these benzofurans to promote estrogensynthesis, the following protocols were adopted: 1 Cytology: 3T3-L1 preadipocytes,human ovary carcinoma celllines OVCAR-3,OVCAR-4,OVCAR-5,OVCAR-8,IGROV1 andbreast carcinoma cell lines MCF-7 and MDA-MB-231 were usedto determine Aro gene expression and estrogen production withRT-PCR AND ELISA methods. Formestane, an aromataseinhibitor, was used as positive control. And dose-curve,time-curve and the effective concentration of SP25 were also studied. 2 Designed 3 pairs of RNAi for human aromatase gene, andtransfected into cell. Aromatase inducer Forskolin andDexamethasone, and aromatase inhibitor Formestane were usedas positive controls. We studied the change of Aro expressionlevel with SP25 by using real-time PCR after RNA interfering. 3 Estrogen Receptor: We constructed the recombined Luciferasereport vector and establish a screening system for estrogenagonist and antagon. With this system, we studied the affinity ofSP25 and estrogen receptor. Results: 1 Differentiated 3T3-L1 preadipocytes¡¢human ovary carcinomacell lines:OVCAR-3, OVCAR-4, OVCAR-8 and breast carcinomacell lines MCF-7, MDA-MB-231 had detected aromatase geneexpression.And OVCAR-3 is more suitable for further aromatasegene function research. 2 In RNAi assay, R2 has a strong interfering effcet in OVCAR-3 cellline, and ratio of C2 (the negative control) to R2 were 118 times(24 hours) and 19 times (48 hours). This means sucessful inRNA interfering. After R2 acted on OVCAR-3 cell line, the ratiosof formestane to R2 were 0.83 and 0.04 times, 5.76 and 3.49times (Dex), 3.61 and 1.84 times (forskolin) and 8.13 and 4.59times (sp25) after drug treated 24 or 48 hours respectively.These results indicated that SP25 can directly induce aromatasegene up-regulation. 3 We had constructed pERE-pGL3-promoter recombined vectorand the Luciferase report gene screening system. Luciferasereport gene assay showed that sp25 had a higher affinity with strogen receptor alpha than estrogen receptor beta, this indicated that SP25 can act on estrogen receptor and induce aromatase. Our results revealed that the mechanisms of benzofuran to promoteestrogen were the upregulation aromatase gene expression and promotion ofaromatase activity and have partially elective affinity with estrogen receptoralpha.
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Identification et réédition d'une inscription copte fragmentaire portant le texte du Notre-Père. L'inscription était peinte à l'intérieur d'une maison adossée à un mur du temple de Ramsès III à Médinet Abou, devenu le village de Djèmé à l'époque chrétienne.
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info:eu-repo/semantics/published
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This text presents an analysis of aggregated membership’s dynamics for Spanish trade unions, using ECVT data, as well as union memberships’ trajectories, or members’ decisions about joining the organization, permanency and responsibilities, and subsequent attrition. For the analysis of trajectories we make use of information of the records of actual memberships and the record of quitting of CCOO, and of a survey-questionnaire to a sample of leavers of the same union. This study allows us to confirm a linkage between the decision and motivations to become union member, to participate in union activities, the time of permanency, and the motives to quit the organization. We also identify five types of union members’ trajectories, indicating that, far from views that assert a monolithic structure, unions are complex organizations.
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The transformation of the Information and Communication Technologies (ICT) into knowledge and learning technologies is increasingly becoming a matter of concern. Teaching settings associated with the use of blogs in Higher Education are presented in this paper, proceeding from an innovative learning experience of projects carried out by a group of professors between 2009 and 2013. Both, teachers and students who took part in the subjects that implemented the blog, considered it as helpful resource to create a virtual and learning-teaching environment due to the multiple potentialities it offers. Among some of these potentialities, some stand out: it makes easier the access to knowledge, promotes a more active and reflective learning, expands the social experience of learning, provides evidence about the students’ progress which helps to reorient the teaching-learning process, and encourages the critical judgment. Nevertheless, several problems related with the students’ participation and the teacher’s blog management have been identified.
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A new C*-enlargement of a C*-algebra A nested between the local multiplier algebra of A and its injective envelope is introduced. Various aspects of this maximal C*-algebra of quotients are studied, notably in the setting of AW*-algebras. As a by-product we obtain a new example of a type I C*-algebra such that its second iterated local multiplier algebra is strictly larger than its local multiplier algebra.
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We discuss necessary as well as sufficient conditions for the second iterated local multiplier algebra of a separable C*-algebra to agree with the first.
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As versões de romances que a seguir apresento foram recolhidas no concelho de Aljezur, distrito de Faro, no ano de 1989, quando frequentei a disciplina de Romanceiro Tradicional sob a orientação do Prof. Pere Ferré. Para esta pequena recolha foram preciosos os ensinamentos do Prof. Ferré, e algumas notas sobre a tradição algarvia dadas pela Profª. Vanda Anastácio.
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Sempre que se observa o trabalho editorial feito por boa parte dos divulgadores do romanceiro oitocentista em Espanha e Portugal, desperta a nossa atenção o modo laborioso com que se aprimoravam as versões por eles publicadas. Em resultado de um conjunto de estudos que realizei sobre João Baptista da Silva Leitão de Almeida Garret (o primeiro compilador de romances na Península Ibérica) e, muito especialmente, graças às recentes e inovadoras investigações de Sandra Boto (a quem se deve o estudo e divulgação de um fundo romancístico inédito garrettiano, com as consequentes ilações no campo da «textologia») o conhecimento que temos dos métodos editoriais deste autor permite-nos apresentar dados muito rigorosos.
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The chapter describes the 10 years research of Anes Laboratory on the interactions of M. tuberculosis with macrophages namely with the actin. modulation by lipids, phagosome maturation and inflammasome activation