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3,406 research outcomes, page 1 of 341
  • publication . Article . Preprint . 2005
    Open Access English
    Authors:
    Anton Ramšak; John H. Jefferson;
    Persistent Identifiers

    Shot noise reduction in quantum wires is interpreted within the model for the ''0.7 structure'' in the conductance of near perfect quantum wires [T. Rejec, A. Ramsak, and J.H. Jefferson, Phys. Rev. B 62, 12985 (2000)]. It is shown how the Fano factor structure is relate...

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  • publication . Preprint . Article . 2010
    Open Access English
    Authors:
    Matjaz Perc;
    Persistent Identifiers

    We study the evolution of Slovenia's scientific collaboration network from 1960 till present with a yearly resolution. For each year the network was constructed from publication records of Slovene scientists, whereby two were connected if, up to the given year inclusive...

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  • publication . Preprint . 2013
    Open Access English
    Authors:
    Wadati, H.; Yoshimatsu, K.; Kumigashira, H.; Oshima, M.; Sugiyama, T.; Ikenaga, E.; Fujimori, A.; Mravlje, J.; Georges, A.; Radetinac, A.; ...

    We investigate the electronic structure of a perovskite-type Pauli paramagnet SrMoO3 (t2g2) thin film using hard x-ray photoemission spectroscopy and compare the results to the realistic calculations that combine the density functional theory within the local-density ap...

  • publication . Article . Preprint . 2015
    Open Access English
    Authors:
    Jonathan L. Gross; Toufik Mansour; Thomas W. Tucker; David G. L. Wang;
    Persistent Identifiers
    Publisher: Društvo matematikov, fizikov in astronomov
    Country: Slovenia

    We prove that the genus polynomials of the graphs called iterated claws are real-rooted. This continues our work directed toward the 25-year-old conjecture that the genus distribution of every graph is log-concave. We have previously established log-concavity for sequen...

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  • publication . Article . Preprint . 2017
    Open Access English
    Authors:
    Peter Gabrovsek; Darko Aleksovski; Igor Mozetič; Miha Grčar;
    Persistent Identifiers
    Publisher: Public Library of Science (PLoS)
    Country: Slovenia
    Project: EC | SIMPOL (610704), EC | DOLFINS (640772)

    We investigate the relationship between social media, Twitter in particular, and stock market. We provide an in-depth analysis of the Twitter volume and sentiment about the 30 companies in the Dow Jones Industrial Average index, over a period of three years. We focus on...

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  • publication . Article . Preprint . 2011
    Open Access English
    Authors:
    Jianlei Zhang; Chunyan Zhang; Tianguang Chu; Matjaž Perc;
    Persistent Identifiers
    Publisher: Public Library of Science

    We study the evolution of cooperation among selfish individuals in the stochastic strategy spatial prisoner's dilemma game. We equip players with the particle swarm optimization technique, and find that it may lead to highly cooperative states even if the temptations to...

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  • publication . Preprint . 2011
    Open Access English
    Authors:
    Kausteklis, Jonas; Cevc, Pavel; Arcon, Denis; Nasi, Lucia; Pontiroli, Daniele; Mazzani, Marcello; Ricco, Mauro;
    Project: SNSF | Smart carbon-based materi... (CRSII2_130509)

    We report on a systematic temperature dependent X-band electron paramagnetic resonance (EPR) study of nano-sized graphite particles prepared by ball-milling. In as-prepared samples a very intense and sharp EPR resonance at $g=2.0035$ has been measured. The EPR linewidth...

  • publication . Article . Preprint . 2016
    Open Access English
    Authors:
    Marko Kandić; Klemen Šivic;
    Persistent Identifiers

    Abstract Gerstenhaber's theorem states that the dimension of the unital algebra generated by two commuting n × n matrices is at most n. We study the analog of this question for positive matrices with a positive commutator. We show that the dimension of the unital algebr...

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  • publication . Preprint . 2011
    Open Access English
    Authors:
    Drobnak, Jure; Fajfer, Svjetlana; Kamenik, Jernej F.;

    Precise measurements of the top quark decay properties at hadron colliders offer interesting new possibilities of testing the standard model. At the same time, recent intriguing experimental results concerning CP violation in the B_d and B_s systems have stimulated many...

  • publication . Article . Preprint . 2015
    Open Access English
    Authors:
    Lu, Hantao; Shao, Can; Bonča, Janez; Manske, Dirk; Tohyama, Takami;
    Persistent Identifiers

    We investigate the time evolution of optical conductivity in the half-filled one-dimensional extended Hubbard model driven by a transient laser pulse, by using the time-dependent Lanczos method. Photoinduced in-gap excitations exhibit a qualitatively different structure...

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3,406 research outcomes, page 1 of 341