2019 Impact factor 1.668
Special Topics


EPJ E Highlight - Adhesion disturbed by noise

Schematic illustrations of the pining and de-pinning events of the fibrils in contact with a rigid sphere. © M. K. Chaudhury and P. S. Goohpattader

A new model could ultimately help robotic fingers, made of a soft surface, manipulate small objects

Imagine a solid ball rolling down a slightly inclined ramp. What could be perceived as child’s play is the focus of serious theoretical research by Manoj Chaudhury and Partho Goohpattader, two physicists from Lehigh University, Bethlehem, Pensylvania, USA. Their study, which has just been published in EPJ E, has one thing in common with childhood behaviour. It introduces a mischievous idea, namely studying the effect of random noise, such as vibrations, on the ball. They found it could lower the energy barrier to set the ball in motion.


EPJ Data Science Highlight - Tracking gene flow in marine plant evolution

Genetic flow network for the Cymodocea nodosa marine plant. © A. P. Masucci et al.

Physicists and biologists apply Big Data statistical tools to study marine plant evolution

A new method that could give a deeper insight into evolutional biology by tracing directionality in gene migration has just appeared in EPJ Data Science. Paolo Masucci from the Centre for Advanced Spatial Analysis, at University College of London, UK, and colleagues identified the segregation of genes that a marine plant underwent during its evolution. They found that the exchange of genes, or gene flow, between populations of a marine plant went westward from the Mediterranean to the Atlantic. This methodology could also be used to estimate the information flow in complex networks, including other biological or social networks.


EPJ C Highlight - Curvature Oscillations in Modified Gravity Theories as Possible Source of Ultra-High-Energy Cosmic Rays

The origin of ultra-high-energy cosmic rays, with energies around the GZK cutoff, remains an unsolved mystery. In the present letter a novel and intriguing explanation is suggested that links far-reaching fundamental aspects of F(R) modified theories to an efficient production of highly energetic cosmic rays during the recent history of the Universe.

At the core of this work lies the proof that in cosmological and astrophysical systems with rising energy densities, the F(R) modified theories of gravity exhibit powerful oscillations of the curvature scalar R, with an amplitude much larger than the standard value of curvature predicted by the General Relativity. These oscillations are strongly anharmonic, with frequencies that can be as large as billions of GeV. This striking and rather unexpected oscillatory behavior of R lends support to the idea that ultra-high energy cosmic rays can be generated by such curvature oscillations at the appropriate cosmological redshifts.

Curvature oscillations in modified gravity and high energy cosmic rays. E.V. Arbuzova, A.D. Dolgov, L. Reverberi (2012), European Physical Journal C 72:2247, DOI 10.1140/epjc/s10052-012-2247-z

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EPJ D Colloquium – An accurate method to measure scattering non-perturbatively

Comparison of the experiment and simulation laser induced fluorescence spectrum of hydroxyl. © Qing Xiong

Atomic and molecular collisions occurring at low impact energies and for neutral targets need adequate methods for accurately measuring their scattering properties. Such measures are fundamental to the description of the dynamics of plasmas and provide insight into the long-range Coulomb interactions between charged particles. In the last twenty years many novel non-perturbative approaches have been applied. The time-dependent close-coupling (TDCC) approach, discussed in this EPJD Review, differs fundamentally from previous non-perturbative approaches in that it solves the time-dependent, rather than time-independent, Schr¨odinger equation. This Review provides a detailed description of the application of the time-dependent close-coupling approach to ionising collisions of electrons, photons and ions with small atoms and molecules.


EPJ D Highlight - Bringing measuring accuracy to radical treatment

Comparison of the experiment and simulation laser induced fluorescence spectrum of hydroxyl. © Qing Xiong

Significant progress made in evaluating the density of active species used in medical applications of plasma physics could improve the accuracy of treatment

An international team of scientists working at the Plasma Technology research unit at Ghent University, Belgium, has determined for the first time the absolute density of active substances called radicals found in a state of matter known as plasma, in a study just published in EPJ D. These findings could have important implications for medicine—for example, for stimulating tissue regeneration, or to induce a targeted antiseptic effect in vivo without affecting neighbouring tissues.


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EPJ Web of Conferences adopts the Creative Commons Attribution License

Up to now, EPJ Web of Conferences contents were published under the Creative Commons Attribution Non-Commercial license. We are pleased to announce that the journal won’t restrict the commercial use of its contents any more. As a result, all open access contents at EPJ Web of Conferences will be published under the Creative Commons Attribution license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The copyright will remain with the authors.

EPJ Web of Conferences now indexed in DOAJ and NASA ADS

EPJ Web of Conferences is now indexed in the Directory of Open Access Journals (DOAJ) and NASA Astrophysics Data System (ADS).

EPJ Web of Conferences indexed in CAS, Inspec and Web of Science

EPJ Web of Conferences is indexed in the Chemical Abstracts Service (CAS), Inspec and Conference Proceedings Citation Index (Web of Science) bibliographic databases.

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Managing Editors
Anne Ruimy (EDP Sciences) and Sabine Lehr (Springer-Verlag)
Thank you very much, Isabelle! Very timely. And the cover looks fantastic! We are grateful for the great collaboration! Best wishes.

Dirk Helbing, ETH Zurich, Switzerland
Editor EPJ Special Topics 214, 2012

ISSN: 1951-6355 (Print Edition)
ISSN: 1951-6401 (Electronic Edition)

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