Search Results - (Author, Cooperation:R. Sierra)

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  1. 1
    C. Claveria ; G. Giovinazzo ; R. Sierra ; M. Torres
    Nature Publishing Group (NPG)
    Published 2013
    Staff View
    Publication Date:
    2013-07-12
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Animals ; Apoptosis ; Cell Proliferation ; Embryo, Mammalian/*cytology/*metabolism ; Embryonic Stem Cells/cytology/metabolism ; Female ; Gene Expression ; Genes, myc ; Germ Layers/*cytology/metabolism ; Male ; Mice ; Models, Biological ; Mosaicism/embryology ; Proto-Oncogene Proteins c-myc/*metabolism
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    H. ter Steege ; N. C. Pitman ; D. Sabatier ; C. Baraloto ; R. P. Salomao ; J. E. Guevara ; O. L. Phillips ; C. V. Castilho ; W. E. Magnusson ; J. F. Molino ; A. Monteagudo ; P. Nunez Vargas ; J. C. Montero ; T. R. Feldpausch ; E. N. Coronado ; T. J. Killeen ; B. Mostacedo ; R. Vasquez ; R. L. Assis ; J. Terborgh ; F. Wittmann ; A. Andrade ; W. F. Laurance ; S. G. Laurance ; B. S. Marimon ; B. H. Marimon, Jr. ; I. C. Guimaraes Vieira ; I. L. Amaral ; R. Brienen ; H. Castellanos ; D. Cardenas Lopez ; J. F. Duivenvoorden ; H. F. Mogollon ; F. D. Matos ; N. Davila ; R. Garcia-Villacorta ; P. R. Stevenson Diaz ; F. Costa ; T. Emilio ; C. Levis ; J. Schietti ; P. Souza ; A. Alonso ; F. Dallmeier ; A. J. Montoya ; M. T. Fernandez Piedade ; A. Araujo-Murakami ; L. Arroyo ; R. Gribel ; P. V. Fine ; C. A. Peres ; M. Toledo ; C. G. Aymard ; T. R. Baker ; C. Ceron ; J. Engel ; T. W. Henkel ; P. Maas ; P. Petronelli ; J. Stropp ; C. E. Zartman ; D. Daly ; D. Neill ; M. Silveira ; M. R. Paredes ; J. Chave ; A. Lima Filho Dde ; P. M. Jorgensen ; A. Fuentes ; J. Schongart ; F. Cornejo Valverde ; A. Di Fiore ; E. M. Jimenez ; M. C. Penuela Mora ; J. F. Phillips ; G. Rivas ; T. R. van Andel ; P. von Hildebrand ; B. Hoffman ; E. L. Zent ; Y. Malhi ; A. Prieto ; A. Rudas ; A. R. Ruschell ; N. Silva ; V. Vos ; S. Zent ; A. A. Oliveira ; A. C. Schutz ; T. Gonzales ; M. Trindade Nascimento ; H. Ramirez-Angulo ; R. Sierra ; M. Tirado ; M. N. Umana Medina ; G. van der Heijden ; C. I. Vela ; E. Vilanova Torre ; C. Vriesendorp ; O. Wang ; K. R. Young ; C. Baider ; H. Balslev ; C. Ferreira ; I. Mesones ; A. Torres-Lezama ; L. E. Urrego Giraldo ; R. Zagt ; M. N. Alexiades ; L. Hernandez ; I. Huamantupa-Chuquimaco ; W. Milliken ; W. Palacios Cuenca ; D. Pauletto ; E. Valderrama Sandoval ; L. Valenzuela Gamarra ; K. G. Dexter ; K. Feeley ; G. Lopez-Gonzalez ; M. R. Silman
    American Association for the Advancement of Science (AAAS)
    Published 2013
    Staff View
    Publication Date:
    2013-10-19
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    *Biodiversity ; Models, Biological ; Population ; *Rivers ; South America ; Trees/*classification/*physiology
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  3. 3
    Peña-Sierra, R. ; Escobosa, A. ; Sanchez-R., V. M.

    Woodbury, NY : American Institute of Physics (AIP)
    Published 1993
    Staff View
    ISSN:
    1077-3118
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Carbon doped GaAs epitaxial layers have been grown using solid arsenic and trimethylgallium. Carbon incorporation, proceeding from the organic radicals, was found to be dependent on the hydrogen partial pressure. The latter was fixed by the introduction of nitrogen in the carrier gas. Controlled p-doping between 1016 and 1221 cm−3 has been obtained by adjusting the composition of the carrier gas. The growth rate of the layers was found to be reduced by the introduction of nitrogen. Mirrorlike surfaces were obtained if at least 2% hydrogen was mixed in the carrier gas, but only polycrystalline films could be grown in a pure nitrogen atmosphere.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.109389

    Articles: DFG German National Licenses
  4. 4
    Asomoza, R. ; Elyukhin, V. A. ; Peña-Sierra, R.

    Woodbury, NY : American Institute of Physics (AIP)
    Published 2001
    Staff View
    ISSN:
    1077-3118
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Spinodal decomposition of the BxGayIn1−x−yAs quaternary alloys lattice-matched to the GaAs as the result of the internal deformation and coherency strain energies is described. The alloys are represented in the strictly regular approximation. The internal deformation energy is considered by the valence-force field model. The estimated bond-stretching and bond-bending elastic constants of BAs are αBAs=6.69×10−2 N/m and βBAs=1.81×10−2 N/m, respectively. Ranges of spinodal decomposition of the BxGayIn1−x−yAs quaternary alloys up to x≤0.1 with and without coherency strain energy are demonstrated. © 2001 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.1368193

    Articles: DFG German National Licenses
  5. 5
    Southgate, D. ; Sierra, R. ; Brown, L.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0305-750X
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Geography
    Political Science
    Sociology
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0305-750X(91)90063-N

    Articles: DFG German National Licenses
  6. 6
    Staff View
    ISSN:
    0378-1119
    Keywords:
    Recombinant DNA libraries ; cap ; guanylyl transferase ; liver-specific promoter ; transthyretin
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Biology
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0378-1119(89)90511-8

    Articles: DFG German National Licenses
  7. 7
    Staff View
    ISSN:
    0022-0248
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Chemistry and Pharmacology
    Geosciences
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0022-0248(91)90480-S

    Articles: DFG German National Licenses
  8. 8
    Quijano, L. ; Gomez-G, F. ; Sierra-R, E. ; Rios, T.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0031-9422
    Keywords:
    Asteraccae ; Heliantheae ; Montanoa tomentosa subsp. tomentosa ; acyclic diterpenes ; geranylnerol derivatives. ; sesquiterpene lactones
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Biology
    Chemistry and Pharmacology
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0031-9422(91)85045-2

    Articles: DFG German National Licenses
  9. 9
    Martinez-Sierra, R. ; Lorenzo-Velazquez, B.
    Springer
    Published 1972
    Staff View
    ISSN:
    1420-9071
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Medicine
    Notes:
    Resumen La incorporación de H3NE al ventriculo aislado de rana no varía, si las preparaciones son sometidas a 25°C, 35°C o temperatura ambiente (15°C, aproximadamente); asimismo tampoco existen diferencias significativas entre experimentos hechos en verano o invierno a temperatura ambiente.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01918674

    Articles: DFG German National Licenses
  10. 10
    Martinez-Sierra, R. ; Lorenzo-Velazquez, B.
    Springer
    Published 1972
    Staff View
    ISSN:
    1420-9071
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Medicine
    Notes:
    Resumen El tratamiento con iodoacetato (IAA), no modifica la incorporación y retencion de H3Norepinefrina (H3NE) al ventriculo aislado deRana oxigenado y suspendido en ringer con o sin glucosa. Bajo atmosfera de Nitrógeno y ausencia de glucosa, la incorporacion de H3NE es bloqueada en un 58%; en estas condiciones el IAA produce un ulterior bloqueo del 33%.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01957849

    Articles: DFG German National Licenses
  11. 11
    Staff View
    ISSN:
    1420-9071
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Medicine
    Notes:
    Resumen La incorporación de H3NE a la auricula aislada de cobayo reserpinizado, tratado con Iproniazida (IPN) y atmosfera de Nitrogeno, es superior a la de sus controles sin IPN. En auriculas no reserpinizadas, la IPN aparece como agente bloquenate de la incorporación. Se sugiere que este bloqueo ocurre a nivel de las vesiculas especificas de almacenamiento presentes en las terminaciones nerviosas adrenergicas.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01926669

    Articles: DFG German National Licenses
  12. 12
    Martinez-Sierra, R. ; Lorenzo-Verlazquez, B.
    Springer
    Published 1973
    Staff View
    ISSN:
    1420-9071
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Medicine
    Notes:
    Resumen En ventriculo aislado deRana pipiens, la cocaina bloquea potentemente la incorporación de H3-norepinefrina. La iproniacida, a su vez, se muestra también como bloqueante de la incorporación y/o retención de H3-NE en la misma preparación farmacologica. Se sugieren unas hipotesis para explicar los resultados obtenidos.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01946747

    Articles: DFG German National Licenses
  13. 13
    ALARCÓN SIERRA, R.

    Madrid : Periodicals Archive Online (PAO)
    Published 1995
    Staff View
    ISSN:
    0034-849X
    Topics:
    Linguistics and Literary Studies
    Notes:
    ESTUDIOS
    URL:
    http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:6478-1995-057-13-000002

    Articles: DFG German National Licenses
  14. 14
    Sierra, R.

    Madrid : Periodicals Archive Online (PAO)
    Published 1959
    Staff View
    ISSN:
    0034-9712
    Topics:
    Sociology
    Description / Table of Contents:
    Notas bibliográficas
    Notes:
    SECCIONES INFORMATIVAS
    URL:
    http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:4177-1959-017-65-000061

    Articles: DFG German National Licenses
  15. 15
    Sierra, R.

    Madrid : Periodicals Archive Online (PAO)
    Published 1961
    Staff View
    ISSN:
    0034-9712
    Topics:
    Sociology
    Description / Table of Contents:
    Notas Bilbliográficas
    Notes:
    SECCIONES INFORMATIVAS
    URL:
    http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:4177-1961-019-76-000014

    Articles: DFG German National Licenses
  16. 16
    Sierra, R.

    Madrid : Periodicals Archive Online (PAO)
    Published 1963
    Staff View
    ISSN:
    0034-9712
    Topics:
    Sociology
    Description / Table of Contents:
    Notas Bilbliográficas
    Notes:
    SECCIONES INFORMATIVAS
    URL:
    http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:4177-1963-021-81-000012

    Articles: DFG German National Licenses
  17. 17
    Sierra, R.

    Madrid : Periodicals Archive Online (PAO)
    Published 1970
    Staff View
    ISSN:
    0034-9712
    Topics:
    Sociology
    Description / Table of Contents:
    Notas Bilbliográficas
    Notes:
    SECCIONES DOCTRINALES
    URL:
    http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:4177-1970-028-09-000010

    Articles: DFG German National Licenses
  18. 18
    Staff View
    ISSN:
    1420-9071
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Medicine
    Notes:
    Summary The decrease of the norepinephrine levels in hypothalamus and heart caused by stress is prevented by pargyline and imipramine. Such a decrease in spleen and adrenals is not affected. Chlorpromazine and lithium only prevent the norepinephrine decrease in the spleen. The uptake of H3norepinephrine by isolated atria of guinea-pig increases during anoxia; the change to a normal oxygen situation decreases these norepinephrine levels by more than 50%.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF02034706

    Articles: DFG German National Licenses
  19. 19
    Staff View
    ISSN:
    1420-9071
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Medicine
    Notes:
    Resumen El tratamiento con fenoxibenzamina o desmetilimipramina da lugar a una potenciación irreversible de las respuestas a noradrenalina, en la aurícula aislada de cobayo. La presencia de tiramina durante el tratamiento previene dicha potenciación cuando se utiliza fenoxibenzamina, mientras que no la modifica en el caso de la desmetilimipramina
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01944970

    Articles: DFG German National Licenses
  20. 20
    Martinez-Sierra, R. ; Lorenzo-Velazquez, B.
    Springer
    Published 1973
    Staff View
    ISSN:
    1420-9071
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Medicine
    Notes:
    Resumen La oxidación de substratos endogenos no carbohidratos produce la energia necesaria para obtener un 100% de incorporación y retención de H3NE por el ventriculo aislado de rana. La glicolisis de substratos endogenos produce la necesaria para obtener de un 21–42%. La glucosa exogena no es fuente de energia utilizada para este proceso.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01930428

    Articles: DFG German National Licenses