Buscador

Found 1173 result(s)
Found 118 page(s)

Mapas de distribución de algas marinas de la península ibérica y las islas baleares. XXIV. Catenella caespitosa, Caulacanthus ustulatus y Feldmannophycus rayssiae (Caulacanthaceae, Rhodophyta)

  • Silva, José
  • Lezama, Nerea
  • Rull, Jordi
[spa] Se presentan los mapas de distribución en la Península Ibérica y las Islas Baleares de los géneros Catenella Greville, Caulacanthus Kützing y Feldmannophycus Augier & Boudouresque, cada uno de ellos representado en nuestras costas por una sola especie: Catenella caespitosa, Caulacanthus ustulatus y Feldmannophycus rayssiae., [eng] We publish here the distribution maps along the Iberian Peninsula and the Balearic Islands of the genera Catenella Greville, Caulacanthus Kützing and Feldmannophycus Augier & Boudouresque. Each one of these genera is represented in this geographical area only by one species: Catenella caespitosa, Caulacanthus ustulatus and Feldmannophycus rayssiae.
Project:


Tumor promoting effects of CD95 signalling in chemoresistant cells

  • Ametller, Elisabet
  • Garcia-Recio, Susana
  • Costamagna, Domiziana
  • Mayordomo, Cristina
  • Fernandez-Nogueira, Patricia
  • Carbó Carbó, Neus
  • Pastor Arroyo, Eva M.
  • Gascón, Pere
  • Almendro Navarro, Vanessa
Background: CD95 is a death receptor controlling not only apoptotic pathways but also activating mechanisms promoting tumor growth. During the acquisition of chemoresistance to oxaliplatin there is a progressive loss of CD95 expression in colon cancer cells and a decreased ability of this receptor to induce cell death. The aim of this study was to characterize some key cellular responses controlled by CD95 signaling in oxaliplatin-resistant colon cancer cells. Results: We show that CD95 triggering results in an increased metastatic ability in resistant cells. Moreover, oxaliplatin treatment itself stimulates cell migration and decreases cell adhesion through CD95 activation, since CD95 expression inhibition by siRNA blocks the promigratory effects of oxaliplatin. These promigratory effects are related to the epithelia-to-mesenchymal transition (EMT ) phenomenon, as evidenced by the up-regulation of some transcription factors and mesenchymal markers both in vitro and in vivo. Conclusions: We conclude that oxaliplatin treatment in cells that have acquired resistance to oxaliplatin-induced apoptosis results in tumor-promoting effects through the activation of CD95 signaling and by inducing EMT, all these events jointly contributing to a metastatic phenotype.
Project:


El Debate de Revista Internacional de Pensamiento Político. La Renta Básica. Entrevista

  • Arcarons i Bullich, Jordi
  • Lo Vuolo, Rubén
  • Rey, José Luis
  • Yanes, Pablo
  • Zubero, Imanol
Tras la presentación del debate van a continuación las opiniones de los encuestados sobre la renta básica, contestando a un cuestionario de cinco preguntas. Los participantes forman un conjunto heterogéneo con distintas ideas acerca de la oportunidad, alcance y fundamentos de la renta básica. En el capítulo 8 de este número pueden encontrar un breve currículo de los encuestados, a quienes agradecemos desde la Redacción de RIPP la buena acogida y disponibilidad que han dispensado a la entrevista.
Project:


Saber hablar para crecer comprendiéndose a uno mismo y a los otros

  • Jarque, Maria Josep
  • Valdespino, Silvia
Nuevos datos confirman la importancia del papel que juega el lenguaje en el desarrollo de la comprensión de los deseos, las emociones y las creencias de los otros y de uno mismo. Estas evidencias nos conducen hacia la hipótesis de que el lenguaje es un factor determinante en el desarrollo de la cognición social.
Project:


La referència en la Gramàtica Funcional Discursiva

  • Alturo, Núria
[cat] La referència en la Gramàtica Funcional Discursiva. L'objectiu d'aquest treball és donar compte del concepte de referència des del punt de vista de la gramàtica funcional discursiva (fdg: Hengeveld i Mackenzie 2008, Keizer 2008). d'acord amb aquest model, la referència té un vessant accional (pragmàtic) que cal distingir de la referència denotativa (semàntica). A partir d'aquesta idea, es comenten algunes possibilitats de codificació morfosintàctica de la referència i s'exposa el paper de la referència en la motivació pragmàtica i semàntica de la coherència discursiva., [eng] The aim of this paper is to explain the concept of reference from the point of view of functional discourse grammar (fdg: Hengeveld and Mackenzie 2008, Keizer 2008). According to this approach, reference has an actional (pragmatic) side that has to be distinguished from a denotative (semantic) side. departing from this view, we discuss some examples of the morphosyntactic coding of reference, as well as the role of reference in the pragmatic and semantic motivation of discourse coherence.
Project:


Prediction of whole-genome DNA G+C content within the genus Aeromonas based on housekeeping gene sequences

  • Lorén Egea, José Gaspar
  • Farfán Sellarés, Maribel
  • Miñana i Galbis, David
  • Fusté Munné, M. Carme
Different methods are available to determine the G+C content (e.g. thermal denaturation temperature or high performance liquid chromatography, HPLC), but obtained values may differ significantly between strains, as well as between laboratories. Recently, several authors have demonstrated that the genomic DNA G+C content of prokaryotes can be reliably estimated from one or several protein coding gene nucleotide sequences. Few G+C content values have been published for the <i>Aeromonas</i> species described and the data, when available, are often incomplete or provide only a range of values. Our aim in this current work was twofold. First, the genomic G+C content of the type or reference strains of all species and subspecies of the genus <i>Aeromonas</i> was determined with a traditional experimental method in the same laboratory. Second, we wanted to see if the sequence-based method to estimate the G+C content described by Fournier et al. [7] could be applied to determine the G+C content of the different species of <i>Aeromonas</i> from the sequences of the genes used in taxonomy or phylogeny for this genus.
Project:


Edició dels manuscrits de treball de la poesia 'Aire d'una gelosia', de Carles Riba

  • Juanpere Duñó, Paula
La publicació de manuscrits significa, per una banda, posar a disposició dels estudiosos les eines per indagar en l'obra de l'autor de manera més aprofundida -en acostar-los la seva part més remota i personal- i, per l'altra, considerar el text com un seguit d'aproximacions cap al fet poètic. Aleshores, l'edició dels manuscrits esdevé una eina per admirar i estudiar el funcionament i els processos creatius de la poesia. En el present article hem decidit contribuir-hi amb l'edició d'un manuscrit de Carles Riba, les poesies del qual tenen sovint per tema, en paraules de Marià Manent, «el propi mester poètic, el misteri de la creació lírica». Per tant, no ens disposem a recuperar tan sols l'obra d'aquest poeta, sinó que per mitjà d'ella volem fornir als lectors nous instruments que tenen la voluntat d'abastar, més enllà del mateix Riba, l'espai de la reflexió poètica en la seva totalitat, o, si més no, dirigir-nos-hi.
Project:


How to kill a philosopher. The narrating of ancient greek philosophers' deaths in relation to their way of living

  • Grau Guijarro, Sergi
There is a general interest in ancient biographies about death scenes, particularly about unusual, terrible, and strange deaths. Indeed, in the mind of ancient biographers the death scene is the last chance to confirm and glorify a character definitively, or to punish him for his way of life, and, if he is an intellectual, to reject the ideas expressed in his work. The topic of a philosopher's death might have been of great interest to antiquarians and biographers: indeed works about this topic were not rare, as the book presumably composed by Hermippus shows. 1 According to Riginos 1976, 194 this book was the origin of this traditional biographical rubric, which is almost always present in philosophers' biographies. Also Titinius Capito composed an Exitus illustrium uirorum, according to Pliny (Ep. viii 12). Furthermore, it seems evident that collections of examples of death were circulated and used by rhetoricians: Cicero
Project:


La diversitat lingüística i la defensa del francès, objectius compatibles?

  • Comellas, Pere, 1965-
[cat] L'article critica l'ús d'un discurs suposadament favorable a la diversitat lingüística (exemplificat per un llibre del lingüista Claude Hagège) darrere el qual hi ha una simple voluntat de prolongar l'imperialisme lingüístic francòfon. [eng] This paper criticizes the use of a discourse which is supposed to be in favour of linguistic diversity (exemplified by a book by the linguist Claude Hagège), but behind which there lurks purely and simply the will to perpetuate Francophone linguistic imperialism.
Project:


La diversitat lingüística i la defensa del francès, objectius compatibles?

  • Comellas, Pere, 1965-
[cat] L'article critica l'ús d'un discurs suposadament favorable a la diversitat lingüística (exemplificat per un llibre del lingüista Claude Hagège) darrere el qual hi ha una simple voluntat de prolongar l'imperialisme lingüístic francòfon. [eng] This paper criticizes the use of a discourse which is supposed to be in favour of linguistic diversity (exemplified by a book by the linguist Claude Hagège), but behind which there lurks purely and simply the will to perpetuate Francophone linguistic imperialism.
Project:


Advanced search