Search Results - (Author, Cooperation:L. Hernandez)

Showing 1 - 20 results of 133, query time: 0.26s Refine Results
  1. 1
    Staff View
    ISSN:
    1040-0397
    Keywords:
    Stripping voltammetry ; Ion pair ; Paraquat ; Chemistry ; Polymer and Materials Science
    Source:
    Wiley InterScience Backfile Collection 1832-2000
    Topics:
    Chemistry and Pharmacology
    Notes:
    The formation of ion pairs is used to greatly enhance the sensitivity of cathodic stripping measurements at the hanging mercury drop electrode (HMDE). Such a scheme is illustrated for the trace determination of paraquat. Factors affecting the response are explored.
    Additional Material:
    6 Ill.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  2. 2
    Staff View
    Publication Date:
    2018-06-28
    Publisher:
    MDPI Publishing
    Electronic ISSN:
    1424-8220
    Topics:
    Chemistry and Pharmacology
    Electrical Engineering, Measurement and Control Technology
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  3. 3
    Staff View
    Publication Date:
    2018-06-27
    Publisher:
    MDPI Publishing
    Electronic ISSN:
    1424-8220
    Topics:
    Chemistry and Pharmacology
    Electrical Engineering, Measurement and Control Technology
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  4. 4
    Staff View
    Publication Date:
    2018-06-06
    Publisher:
    MDPI Publishing
    Electronic ISSN:
    1424-8220
    Topics:
    Chemistry and Pharmacology
    Electrical Engineering, Measurement and Control Technology
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  5. 5
    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:
    Latest Papers from Table of Contents or Articles in Press
  6. 6
    L. Poorter ; F. Bongers ; T. M. Aide ; A. M. Almeyda Zambrano ; P. Balvanera ; J. M. Becknell ; V. Boukili ; P. H. Brancalion ; E. N. Broadbent ; R. L. Chazdon ; D. Craven ; J. S. de Almeida-Cortez ; G. A. Cabral ; B. H. de Jong ; J. S. Denslow ; D. H. Dent ; S. J. DeWalt ; J. M. Dupuy ; S. M. Duran ; M. M. Espirito-Santo ; M. C. Fandino ; R. G. Cesar ; J. S. Hall ; J. L. Hernandez-Stefanoni ; C. C. Jakovac ; A. B. Junqueira ; D. Kennard ; S. G. Letcher ; J. C. Licona ; M. Lohbeck ; E. Marin-Spiotta ; M. Martinez-Ramos ; P. Massoca ; J. A. Meave ; R. Mesquita ; F. Mora ; R. Munoz ; R. Muscarella ; Y. R. Nunes ; S. Ochoa-Gaona ; A. A. de Oliveira ; E. Orihuela-Belmonte ; M. Pena-Claros ; E. A. Perez-Garcia ; D. Piotto ; J. S. Powers ; J. Rodriguez-Velazquez ; I. E. Romero-Perez ; J. Ruiz ; J. G. Saldarriaga ; A. Sanchez-Azofeifa ; N. B. Schwartz ; M. K. Steininger ; N. G. Swenson ; M. Toledo ; M. Uriarte ; M. van Breugel ; H. van der Wal ; M. D. Veloso ; H. F. Vester ; A. Vicentini ; I. C. Vieira ; T. V. Bentos ; G. B. Williamson ; D. M. Rozendaal
    Nature Publishing Group (NPG)
    Published 2016
    Staff View
    Publication Date:
    2016-02-04
    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:
    *Biomass ; Carbon/metabolism ; Carbon Cycle ; Carbon Sequestration ; Ecology ; *Forests ; Humidity ; Latin America ; Rain ; Time Factors ; Trees/*growth & development/metabolism ; *Tropical Climate
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  7. 7
    X. S. Puente ; M. Pinyol ; V. Quesada ; L. Conde ; G. R. Ordonez ; N. Villamor ; G. Escaramis ; P. Jares ; S. Bea ; M. Gonzalez-Diaz ; L. Bassaganyas ; T. Baumann ; M. Juan ; M. Lopez-Guerra ; D. Colomer ; J. M. Tubio ; C. Lopez ; A. Navarro ; C. Tornador ; M. Aymerich ; M. Rozman ; J. M. Hernandez ; D. A. Puente ; J. M. Freije ; G. Velasco ; A. Gutierrez-Fernandez ; D. Costa ; A. Carrio ; S. Guijarro ; A. Enjuanes ; L. Hernandez ; J. Yague ; P. Nicolas ; C. M. Romeo-Casabona ; H. Himmelbauer ; E. Castillo ; J. C. Dohm ; S. de Sanjose ; M. A. Piris ; E. de Alava ; J. San Miguel ; R. Royo ; J. L. Gelpi ; D. Torrents ; M. Orozco ; D. G. Pisano ; A. Valencia ; R. Guigo ; M. Bayes ; S. Heath ; M. Gut ; P. Klatt ; J. Marshall ; K. Raine ; L. A. Stebbings ; P. A. Futreal ; M. R. Stratton ; P. J. Campbell ; I. Gut ; A. Lopez-Guillermo ; X. Estivill ; E. Montserrat ; C. Lopez-Otin ; E. Campo
    Nature Publishing Group (NPG)
    Published 2011
    Staff View
    Publication Date:
    2011-06-07
    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:
    Amino Acid Sequence ; Animals ; Carrier Proteins/genetics ; DNA Mutational Analysis ; Genome, Human/*genetics ; Humans ; Karyopherins/genetics ; Leukemia, Lymphocytic, Chronic, B-Cell/*genetics ; Molecular Sequence Data ; Mutation/*genetics ; Myeloid Differentiation Factor 88/chemistry/genetics ; Receptor, Notch1/genetics ; Receptors, Cytoplasmic and Nuclear/genetics ; Reproducibility of Results
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  8. 8
    Encinas, L. Hernández ; Masqué, J. Muñoz

    College Park, Md. : American Institute of Physics (AIP)
    Published 1994
    Staff View
    ISSN:
    1089-7658
    Source:
    AIP Digital Archive
    Topics:
    Mathematics
    Physics
    Notes:
    The cotangent bundle of a manifold M can be identified with the bundle of connections of the trivial bundle M×U(1). Hence, there exists a natural representation of the U(1)-invariant vector fields on M×U(1) extending the gauge representation into the Lie algebra of vector fields on T*(M). It is proved herein that a differential form on T*(M) is invariant under this representation (resp. gauge invariant) if and only if it belongs to the R-algebra [resp. to the Ω (overdot) (M)-algebra] generated by the canonical symplectic form of the cotangent bundle.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  9. 9
    Herrera, L. ; Pastora, J. L. Hernández

    College Park, Md. : American Institute of Physics (AIP)
    Published 2000
    Staff View
    ISSN:
    1089-7658
    Source:
    AIP Digital Archive
    Topics:
    Mathematics
    Physics
    Notes:
    Using the technique of Rindler and Perlick we calculate the total precession per revolution of a gyroscope circumventing the source of Weyl metrics. We establish thereby a link between the multipole moments of the source and an "observable" quantity. Special attention deserves the case of the γ-metric. As an extension of this result we also present the corresponding expressions for some stationary space–times. © 2000 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  10. 10
    Bilbaut, A. ; Nicaise, M.-L. Hernandez ; Leech, C. A. ; Meech, R. W.

    [s.l.] : Nature Publishing Group
    Published 1988
    Staff View
    ISSN:
    1476-4687
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Notes:
    [Auszug] The feeding response of Beroe is triggered by the contact of the prey with the sensory receptors of the lips, and consists of a sudden increase in pharynx volume accomplished by both radial and longitudinal muscles (Fig. la, 6). Increased tension in the radial fibres stiffens the animal so that ...
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  11. 11
    Bernal T, Fernández-Hernández L, Matos T, et al.
    Oxford University Press
    Published 2018
    Staff View
    Publication Date:
    2018-03-06
    Publisher:
    Oxford University Press
    Print ISSN:
    0035-8711
    Electronic ISSN:
    1365-2966
    Topics:
    Physics
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  12. 12
    Staff View
    Publication Date:
    2018-02-16
    Publisher:
    American Society of Hematology (ASH)
    Print ISSN:
    0006-4971
    Electronic ISSN:
    1528-0020
    Topics:
    Biology
    Medicine
    Keywords:
    Hematopoiesis and Stem Cells, Pediatric Hematology, Plenary Papers, Free Research Articles, Myeloid Neoplasia, Red Cells, Iron, and Erythropoiesis, CME article, Clinical Trials and Observations
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  13. 13
    Staff View
    Publication Date:
    2018-06-01
    Publisher:
    American Physical Society (APS)
    Print ISSN:
    1539-3755
    Electronic ISSN:
    1550-2376
    Topics:
    Physics
    Keywords:
    Fluid Dynamics
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  14. 14
    Staff View
    Publication Date:
    2018-07-04
    Publisher:
    American Physical Society (APS)
    Print ISSN:
    1050-2947
    Electronic ISSN:
    1094-1622
    Topics:
    Physics
    Keywords:
    Atomic and molecular processes in external fields, including interactions with strong fields and short pulses
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  15. 15
    Huber, W. H. ; Hernandez, L. M. ; Goldman, A. M.

    [S.l.] : American Institute of Physics (AIP)
    Published 1999
    Staff View
    ISSN:
    1089-7623
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Electrical Engineering, Measurement and Control Technology
    Notes:
    We have constructed a simple, improved apparatus for calibrating strain gauges down to liquid helium temperatures to permit an estimate of the repeatability and linearity of commercially available, batch produced, metal foil strain gauges. The apparatus is based upon an original design first proposed by McClintock [R. M. McClintock, Rev. Sci. Instrum. 30, 715 (1959)]. Calibrations performed on a particular batch produced metal foil strain gauge indicate that it behaved ideally at low temperatures. Although the gauge resistance was strongly temperature dependent, the gauge factor was virtually independent of temperature and did not display any detectable nonlinearity or hysteresis. © 1999 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  16. 16
    Angulo-Brown, F. ; Arias-Hernández, L. A.

    [S.l.] : American Institute of Physics (AIP)
    Published 2001
    Staff View
    ISSN:
    1089-7550
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    In this reply to a comment by Yan on our previous article [J. Appl. Phys. 81, 2973 (1997)], we show that the compromise function C(cursive-epsilon) between high power output and low entropy production for CAN engines, proposed in that article to find the best ecological function, is not tautological. Moreover, this procedure is useful to construct the best ecological function for any heat transfer law used in endoreversible thermal engine models. © 2001 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  17. 17
    de Melo, O. ; Hernández, L. ; Zelaya-Angel, O. ; Lozada-Morales, R. ; Becerril, M. ; Vasco, E.

    Woodbury, NY : American Institute of Physics (AIP)
    Published 1994
    Staff View
    ISSN:
    1077-3118
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    In this letter we report on cubic CdS thin films with low resistivity by chemical bath deposition (CBD) technique and subsequent annealings in S2 and H2+In. Low temperature photoluminescence, x rays, and transmission spectra support the assumption that S2 annealings contribute to fill the vacancies in the as-deposited films leading to an enlargement of the CdS cubic cell. This fact is revealed by an increase in interplanar distances, evanescence of the PL red broad band, and decrease in band-gap energies. Cubic phase remains after H2+In annealing at higher temperatures. A resistivity as low as 11 Ω cm was obtained at an optimum annealing temperature of 350 °C.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  18. 18
    HOEBEL, B. G. ; HERNANDEZ, L. ; SCHWARTZ, D. H. ; MARK, G. P. ; HUNTER, G. A.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1989
    Staff View
    ISSN:
    1749-6632
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Natural Sciences in General
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  19. 19
    Fernandez Martinez, J. ; Dominguez Gimenez, J. ; Jimenez, A. ; Hernandez, L.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1986
    Staff View
    ISSN:
    1439-0523
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes:
    The single seed descent (SSD) method of selection has been evaluated in safflower (Carthamus tinctorius L.). The initial population of this study was a BC2F1 from a cross between a well adapted and a high oil cultivar. Transgressive segregation for yield and oil content producing lines with considerably higher values than the better parent was observed in BC2F4 and BC2F5 generations. These results and the great saving of time and effort makes the SSD method a very desirable tool for safflower breeders.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  20. 20
    HERNÁNDEZ, L. ; RODRIGUEZ, P. ; SERRANO, R. ; MUŃOZ, E. ; ESTRADA, M. P. ; FUENTE, J. DELA ; HERRERA, L.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1992
    Staff View
    ISSN:
    1749-6632
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Natural Sciences in General
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses