Search Results - (Author, Cooperation:J. R. Garcia)

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  1. 1
    Staff View
    Publication Date:
    2018-01-18
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Electronic ISSN:
    2375-2548
    Topics:
    Natural Sciences in General
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    M. G. Baud ; E. Lin-Shiao ; T. Cardote ; C. Tallant ; A. Pschibul ; K. H. Chan ; M. Zengerle ; J. R. Garcia ; T. T. Kwan ; F. M. Ferguson ; A. Ciulli
    American Association for the Advancement of Science (AAAS)
    Published 2014
    Staff View
    Publication Date:
    2014-10-18
    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:
    Amino Acid Sequence ; Azepines/chemistry/pharmacology ; Cell Line, Tumor ; Chromatin/chemistry ; Crystallography, X-Ray ; Humans ; Leucine/genetics ; Models, Molecular ; Molecular Probes/*chemistry ; Mutation ; Nuclear Proteins/antagonists & inhibitors/*chemistry/genetics ; Protein Engineering/*methods ; Protein Structure, Tertiary ; Transcription Factors/antagonists & inhibitors/*chemistry/genetics ; Triazoles/chemistry/pharmacology
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  3. 3
    J. Aleksic ; S. Ansoldi ; L. A. Antonelli ; P. Antoranz ; A. Babic ; P. Bangale ; J. A. Barrio ; J. Becerra Gonzalez ; W. Bednarek ; E. Bernardini ; B. Biasuzzi ; A. Biland ; O. Blanch ; S. Bonnefoy ; G. Bonnoli ; F. Borracci ; T. Bretz ; E. Carmona ; A. Carosi ; P. Colin ; E. Colombo ; J. L. Contreras ; J. Cortina ; S. Covino ; P. Da Vela ; F. Dazzi ; A. De Angelis ; G. De Caneva ; B. De Lotto ; E. de Ona Wilhelmi ; C. Delgado Mendez ; D. Dominis Prester ; D. Dorner ; M. Doro ; S. Einecke ; D. Eisenacher ; D. Elsaesser ; M. V. Fonseca ; L. Font ; K. Frantzen ; C. Fruck ; D. Galindo ; R. J. Garcia Lopez ; M. Garczarczyk ; D. Garrido Terrats ; M. Gaug ; N. Godinovic ; A. Gonzalez Munoz ; S. R. Gozzini ; D. Hadasch ; Y. Hanabata ; M. Hayashida ; J. Herrera ; D. Hildebrand ; J. Hose ; D. Hrupec ; W. Idec ; V. Kadenius ; H. Kellermann ; K. Kodani ; Y. Konno ; J. Krause ; H. Kubo ; J. Kushida ; A. La Barbera ; D. Lelas ; N. Lewandowska ; E. Lindfors ; S. Lombardi ; F. Longo ; M. Lopez ; R. Lopez-Coto ; A. Lopez-Oramas ; E. Lorenz ; I. Lozano ; M. Makariev ; K. Mallot ; G. Maneva ; N. Mankuzhiyil ; K. Mannheim ; L. Maraschi ; B. Marcote ; M. Mariotti ; M. Martinez ; D. Mazin ; U. Menzel ; J. M. Miranda ; R. Mirzoyan ; A. Moralejo ; P. Munar-Adrover ; D. Nakajima ; A. Niedzwiecki ; K. Nilsson ; K. Nishijima ; K. Noda ; R. Orito ; A. Overkemping ; S. Paiano ; M. Palatiello ; D. Paneque ; R. Paoletti ; J. M. Paredes ; X. Paredes-Fortuny ; M. Persic ; J. Poutanen ; P. G. Prada Moroni ; E. Prandini ; I. Puljak ; R. Reinthal ; W. Rhode ; M. Ribo ; J. Rico ; J. Rodriguez Garcia ; S. Rugamer ; T. Saito ; K. Saito ; K. Satalecka ; V. Scalzotto ; V. Scapin ; C. Schultz ; T. Schweizer ; S. N. Shore ; A. Sillanpaa ; J. Sitarek ; I. Snidaric ; D. Sobczynska ; F. Spanier ; V. Stamatescu ; A. Stamerra ; T. Steinbring ; J. Storz ; M. Strzys ; L. Takalo ; H. Takami ; F. Tavecchio ; P. Temnikov ; T. Terzic ; D. Tescaro ; M. Teshima ; J. Thaele ; O. Tibolla ; D. F. Torres ; T. Toyama ; A. Treves ; M. Uellenbeck ; P. Vogler ; R. Zanin ; M. Kadler ; R. Schulz ; E. Ros ; U. Bach ; F. Krauss ; J. Wilms
    American Association for the Advancement of Science (AAAS)
    Published 2014
    Staff View
    Publication Date:
    2014-11-08
    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
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  4. 4
    López, R. J. García
    Springer
    Published 1998
    Staff View
    ISSN:
    1572-946X
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract ODIN is an international consortium constituted to design and build a first-light multi-purpose optical intermediate dispersion spectrograph for the Gran Telescopio Canarias (GTC, 10-m) to be installed at the Observatorio del Roque de los Muchachos (La Palma). This instrument should fulfill an important fraction of the needs of the Spanish astronomical community in optical spectroscopy performed at large telescopes, and must be highly competitive in a variety of research fields. We are proposing a spectrograph that will be capable of providing multi-object observations by means of optical fibers, integral field spectroscopy, and also multi-integral fields. It will be mounted at the Nasmyth focus of the GTC. One of the main drivers of our proposal is to cover the whole visible range allowed by the atmospheric cut-off with the highest efficiency, particularly at the UV end.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1023/A:1002188728908

    Articles: DFG German National Licenses
  5. 5
    Staff View
    ISSN:
    1572-946X
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract We give the first results of a study in F-type MS stars using the Hei D 3 absorption feature at λ5876 Å as an indicator of stellar activity and structure. The observations were obtained with the QUB echelle spectrograph at the Cassegrain focus of the 4.2 m William Herschel telescope, and have spectral resolution λ/Δλ≈6×104, and signal-to-noise ratios ≈200. We chose as a first sample 17 F-stars of the Hyades Main Sequence. It was found that Hei D 3 and X-ray emission appear aroundB-V ∼0.3, indicating the onset of sub-surface convection zones. Below this value, in stars withB-V≤0.42–0.44 the behaviour of the Hei D 3 equivalent width against Rossby number is different from that observed in later type stars, indicating that the presence of nonradiative mechanisms other than dynamo must be important in heating the chromospheres of these hotter stars.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF00640688

    Articles: DFG German National Licenses
  6. 6
    Staff View
    Publication Date:
    2018-11-02
    Publisher:
    The American Association for Cancer Research (AACR)
    Print ISSN:
    1078-0432
    Electronic ISSN:
    1557-3265
    Topics:
    Medicine
    Published by:
    http://www.aacr.org/

    Latest Papers from Table of Contents or Articles in Press
  7. 7
    Staff View
    ISSN:
    1432-0789
    Keywords:
    Key words Long-term tillage ; N fertilization ; Microbial biomass ; Potential C and N mineralization ; Soil organic C
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Geosciences
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes:
    Abstract Quantifying seasonal dynamics of active soil C and N pools is important for understanding how production systems can be better managed to sustain long-term soil productivity especially in warm subhumid climates. Our objectives were to determine seasonal dynamics of inorganic soil N, potential C and N mineralization, soil microbial biomass C (SMBC), and the metabolic quotient of microbial biomass in continuous corn (Zea mays L.) under conventional (CT), moldboard (MB), chisel (CH), minimum tillage (MT), and no-tillage (NT) with low (45kgNha–1) and high (90kgNha–1) N fertilization. An Orelia sandy clay loam (fine-loamy, mixed, hyperthermic Typic Ochraqualf) in south Texas, United States, was sampled before corn planting in February, during pollination in May, and following harvest in July. Soil inorganic N, SMBC, and potential C and N mineralization were usually highest in soils under NT, whereas these characteristics were consistently lower throughout the growing season in soils receiving MB tillage. Nitrogen fertilization had little effect on soil inorganic N, SMBC, and potential C and N mineralization. The metabolic quotient of microbial biomass exhibited seasonal patterns inverse to that of SMBC. Seasonal changes in SMBC, inorganic N, and mineralizable C and N indicated the dependence of seasonal C and N dynamics on long-term substrate availability from crop residues. Long-term reduced tillage increased soil organic matter (SOM), SMBC, inorganic N, and labile C and N pools as compared with plowed systems and may be more sustainable over the long term. Seasonal changes in active soil C and N pools were affected more by tillage than by N fertilization in this subhumid climate.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/s003740050301

    Articles: DFG German National Licenses
  8. 8
    Sullivan, B. K. ; Garcia, J. R. ; Klein-MacPhee, G.
    Springer
    Published 1994
    Staff View
    ISSN:
    1432-1793
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Notes:
    Abstract We describe feeding behavior of Aurelia aurita (Linnaeus) using gut content analyses of field-collected specimens and a mesocosm experiment. The field studies were conducted in Narragansett Bay, Rhode Island, USA from March to April 1988, and the mesocosm studies were done at the Marine Ecosystems Research Laboratory at the University of Rhode Island. Patterns of prey selection changed with medusa diameter. Smaller medusae (12 mm diameter) consumed mostly hydromedusan prey whereas larger medusae (up to 30 mm diameter) ingested greater numbers of copepod prey. While larger medusae did feed on copepods, their diet also contained more barnacle nauplii and hydromedusae than expected from the relative abundances of these prey types in plankton samples. A marginal flow mechanism of feeding by A. aurita provided an explanation for the patterns of prey selection we observed in medusae of different sizes and among widely divergent prey types. Our data indicated that large prey, with escape speeds slower than the marginal flow velocities around the bell margins of A. aurita, made up a substantial fraction of the daily ration when they were available. Such prey species may be more important to nutrition than the more abundant copepods and microzooplankton. Successful development of young medusae may depend upon an adequate supply of slowly escaping prey.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF00346742

    Articles: DFG German National Licenses
  9. 9
    Lambert, Richard H. ; Garcia, J. R.
    Springer
    Published 1990
    Staff View
    ISSN:
    1432-0991
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Medicine
    Notes:
    Abstract S-Adenosylmethionine (SAM) synthetase of yeast and hyphal-phase cells of the dimorphic fungusCandida albicans was characterized by kinetic analysis and response to inhibitors. The enzyme from yeast-phase cells has a Km of 0.17 mM for methionine, 0.14 mM for ATP, and is inhibited (in vitro) by dimethyl-sulfoxide, methionine sulfone, and methionine sulfoxide. The hyphal-phase SAM synthetase has a Km of 0.06 mM for methionine, 0.02 mM for ATP, and its activity (in vitro) is enhanced by the substances that inhibit the yeast-phase enzyme. These data strongly suggest that isozymes of SAM synthetase are present inC. albicans and that they are possibly morphology specific. In vivo studies revealed that synthesis of the enzyme is repressed by the addition of methionine to the growth medium and that specific activity of the enzyme increases when intracellular SAM levels are lowered. In addition, it was shown that the increase in specific activity seen during yeast → hypha morphogenesis and in yeast cells grown in a methionine-free medium involves de novo protein synthesis.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF02089413

    Articles: DFG German National Licenses
  10. 10
    Puziy, A. M. ; García, J. R.
    Springer
    Published 1999
    Staff View
    ISSN:
    1588-2780
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Chemistry and Pharmacology
    Energy, Environment Protection, Nuclear Power Engineering
    Notes:
    Abstract Sodium titanium germanate with a semicrystalline framework (STG) of the formula Na3H(TiO)3(GeO)(GeO4)3·7H2O was synthesized under mild hydrothermal conditions and its proton form, H4(TiO)3(GeO)(GeO4)3·8H2O (STG-H), was prepared by acid treatment of the sodium compound. The STG was characterized by elemental analysis, TGA, FT-IR, and X-ray powder diffraction. A comparative ion exchange examination of the STG-H towards alkali and alkaline earth metals in a broad pH and concentration range was carried out. It was found that the STG is a moderately weak cation exchanger, possessing high ion exchange capacity (up to 4.0 meq/g) and showing preference for heavy alkali and alkaline earth metals. The STG selectivity towards Cs+ and Sr2+ ions in the presence of competitive metal ions and certain organic compounds was also studied. The data obtained suggest that the sodium titanium germanate is a more selective exchanger for Sr2+ ion than its titanium silicate analogue, K3H(TiO)4(SiO4)3·4H2O.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF02349862

    Articles: DFG German National Licenses