Filters (2)
Download Results
185,265 research outcomes, page 1 of 18,527
  • It is well documented that ancient sickle harvesting led to tough rachises, but the other seed dispersal properties in crop progenitors are rarely discussed. The first steps toward domestication are evolutionary responses for the recruitment of humans as dispersers. See...

    Add to ORCIDorcid
  • publication . Article . 2003
    Open Access
    Authors:
    Ulrich Meyer;
    Persistent Identifiers
    Publisher: Elsevier BV

    We study the average-case running-time of single-source shortest-path (SSSP) algorithms assuming arbitrary directed graphs with n nodes, m edges, and independent random edge weights uniformly distributed in [0,1]. We give the first label-setting and label-correcting alg...

    Add to ORCIDorcid
  • publication . Article . Other literature type . 2013
    Open Access
    Authors:
    Roscher, Christiane; Schumacher, Jens; Lipowsky, Annett; Gubsch, Marlén; Weigelt, Alexandra; Pompe, Sven; Kolle, Olaf; Buchmann, Nina; Schmid, Bernhard; Schulze, Ernst-Detlef;
    Publisher: Elsevier BV
    Country: Switzerland
    Project: SNSF | Mechanisms underlying pla... (310030E-131193), SNSF | Community history and eco... (31003A_130720)

    a b s t r a c t Several multi-year biodiversity experiments have shown positive species richness-productivity rela- tionships which strengthen over time, but the mechanisms which control productivity are not well understood. We used experimental grasslands (Jena Experim...

    Add to ORCIDorcid
  • publication . Article . 2005
    Open Access
    Authors:
    Jens Antony; Gert von Helden; Gerard Meijer; Burkhard Schmidt;
    Persistent Identifiers
    Publisher: AIP Publishing

    Anharmonic vibrational calculations for the benzoic acid monomer and dimer in the mid-IR regime (500...1800 cm-1) are reported. Harmonic frequencies and intensities are obtained at the DFT/B3LYP level of theory employing D95(d,p) and cc-pVTZ basis sets. Anharmonic corre...

    Add to ORCIDorcid
  • publication . Article . 2005
    Open Access
    Authors:
    Dieter Horns;
    Persistent Identifiers
    Publisher: Elsevier BV
    Add to ORCIDorcid
  • publication . Preprint . Article . 1997
    Open Access English
    Authors:
    Ching-Ming Wei; Axel Groß; Matthias Scheffler;
    Persistent Identifiers

    The presence of sulfur atoms on the Pd(100) surface is known to hinder the dissociative adsorption of hydrogen. Using density-functional theory and the full-potential linear augmented plane-wave method, we investigate the potential energy surface (PES) of the dissociati...

    Add to ORCIDorcid
  • publication . Article . 2010
    Open Access English
    Authors:
    Schumann Kathrin; Lämmermann Tim; Bruckner Markus; Legler Daniel F; Polleux Julien; Spatz Joachim P; Schuler Gerold; Förster Reinhold; Lutz Manfred B; Sorokin Lydia; ...
    Publisher: Elsevier Inc.
    Country: Germany
    Project: SNSF | Modulation of dendritic c... (31003A_127474)

    SummaryChemokines orchestrate immune cell trafficking by eliciting either directed or random migration and by activating integrins in order to induce cell adhesion. Analyzing dendritic cell (DC) migration, we showed that these distinct cellular responses depended on the...

    Add to ORCIDorcid
  • publication . Article . 2016
    Open Access
    Authors:
    T. Schröder; Olaf Grulke; Thomas Klinger; Roderick Boswell; Christine Charles;
    Publisher: AIP Publishing
    Project: EC | EUROfusion (633053)

    The plasma parameter dependencies of the dynamics during the expansion of plasma are studied with the use of a versatile particle-in-cell simulation tailored to a plasma expansion experiment [Schroder et al., J. Phys. D: Appl. Phys. 47, 055207 (2014); Schroder et al., P...

    Add to ORCIDorcid
  • publication . Preprint . Article . 2008
    Open Access English
    Authors:
    Pérez García, David; Wolf, M.M.; Sanz, M.; Verstraete, F.; Cirac, J.I.;
    Persistent Identifiers
    Countries: Spain, Belgium

    We show that the existence of string order in a given quantum state is intimately related to the presence of a local symmetry by proving that both concepts are equivalent within the framework of finitely correlated states. Once this connection is established, we provide...

    Add to ORCIDorcid
  • publication . Article . Preprint . 2012
    Open Access
    Authors:
    Giuseppe Di Bernardo; Carmelo Evoli; Daniele Gaggero; Dario Grasso; Luca Maccione;
    Persistent Identifiers
    Publisher: IOP Publishing
    Project: EC | INVISIBLES (289442)

    A multichannel analysis of cosmic ray electron and positron spectra and of the diffuse synchrotron emission of the Galaxy is performed by using the DRAGON code. This study is aimed at probing the interstellar electron source spectrum down to E ~ 1 GeV and at constrainin...

    Add to ORCIDorcid
185,265 research outcomes, page 1 of 18,527