Proceedings

News

EPJ Plus – The “inertia of heat” concept revisited

What is the general relativistic version of the Navier-Stokes-Fourier dissipative hydrodynamics? Surprisingly, no satisfactory answer to this question is known today. Eckart's early solution [Eckart, Phys. Rev. 58, 919 (1940)], is considered outdated on many grounds: the instability of its equilibrium states, ill-posed initial-value formulation, inconsistency with linear irreversible thermodynamics, etc. Although alternative theories have been proposed recently, none appears to have won the consensus.

Read more...

EPJ B has a new Editor in Chief to handle theory and simulations in condensed matter

Angel Rubio new EPJ B Editor in Chief to handle theory and simulations in condensed matter

From July 2012 Angel Rubio succeeds Luciano Colombo as Editor in Chief of EPJ B for the part of condensed matter theory and modeling. Professor Rubio is the head of the NanoBio spectroscopy group at the Universidad del País Vasco in Spain and leader of the theoretical spectroscopy group at the Fritz Haber Institut in Berlin. His group collaborates with many other experimental and theoretical research groups, as well as groups from industry. He has contributed with a large number of publications to the development of novel theoretical tools to investigate the electronic response of solids, nanostructures, biomolecules and hybrid materials to external electromagnetic fields. He has numerous honors and awards to his name which he garnered throughout his academic career.

EPJ A - Existence of neutron-rich superheavy element 116 confirmed

neutron-rich superheavy element 116

The synthesis of a superheavy element with the proton number Z=116 has been studied at the velocity filter SHIP of GSI in Darmstadt using a 48Ca beam on radioactive 248Cm targets. At excitation energies of the compound nuclei of 40.9 MeV, four decay chains were measured, which were assigned to the isotope 292116 produced in 4n channel, and one chain, which was assigned to 293116 produced in 3n channel. All chains are terminated by spontaneous fission decays of either 277Hs or 284Cn isotopes on the shoreline of the neutron-rich superheavy island.

Read more...

EPJ Data Science - Countering crowd control collapse

EPJ Data Science - Countering crowd control collapse
© Angel Herrero de Frutos, iStockphotos, 138179229

Understanding crowd dynamics can prevent disaster at cultural or sports events.

Physicists investigating a recent crowd disaster in Germany found that one of the key causes was that at some point the crowd dynamics turned turbulent, akin to behaviour found in unstable fluid flows. The study, led by Dirk Helbing from the Risk Center at the Swiss Federal Institute of Technology ETH Zurich, Switzerland, is published in EPJ Data Science.

Read more...

EPJ B - Cell dynamics simulations: a fast way to profile block copolymers

Cell Dynamics Simulation (CDS) is a fast and efficient method for the simulation of kinetic processes in large-scale phase separation systems.

We review the application of this method to block copolymer systems and illustrate its use by examining a set of physical phenomena occurring in these systems. In spite of the simplicity of the model, such applications of CDS demonstrate that it is capable of accurately describing complex phenomena and is, therefore, a complementary method which can serve as a precursor to slower, more elaborate techniques.

Large Scale Simulation of block copolymers with cell dynamics M. Pinna and A.V. Zvelindovsky, Eur. Phys. J. B (2012) 85: 210, DOI: 10.1140/epjb/e2012-20968-6

EPJ C - Neutrons escaping to a parallel world?

An anomaly in the behaviour of ordinary particles may point to the existence of mirror particles that could be candidates for dark matter responsible for the missing mass of the universe. In a paper recently published in EPJC, researchers hypothesised the existence of mirror particles to explain the anomalous loss of neutrons observed experimentally. The existence of such mirror matter had been suggested in various scientific contexts some time ago, including the search for suitable dark matter candidates.

Read more...

EPJ E - Modelling the demise of migrating brain tumour cells

© Sebastian Kaulitzki/iStockphoto

Evolution of brain tumour cells under treatment reveal that it is the peripheral tumour cells that need to be targeted

An Israeli physicist has developed a theoretical model to simulate the evolution of highly proliferating brain tumour core cells subjected to treatment by alternating radio frequency electric field. The research, by Alexander Iomin from the Israel Institute of Technology Technion in Haifa, has just been published in EPJE. In another model, the author examines the possibility of enhancing the level of treatment by targeting the outer area of the tumour.

Read more...

EPJ Data Science - Positive words: the glue to social interaction

© Jennifer Stone/thinkstock.de

Words charged with a positive emotional content are used more frequently, thus enhancing human communication.

Scientists at ETH Zurich have studied the use of language, finding that words with a positive emotional content are more frequently used in written communication. This result supports the theory that social relations are enhanced by a positive bias in human communication. The study by David Garcia and his colleagues from the Chair of Systems Design is published in the first issue of the new SpringerOpen journal EPJ Data Science, and is freely available to the general public as an Open Access article.

Read more...

EPJ E - Make or break for cellular tissues

Models developed to study liquids are used to investigate the mechanics of cellular tissues, which could further our understanding of embryonic development and cancer.

In a study just published in EPJE, French physicists from the Curie Institute in Paris have demonstrated that the behaviour of a thin layer of cells in contact with an unfavourable substrate is akin to that of thin fluid or elastic films. Understanding the mechanism by which a thin layer of cells splits into disjointed patches, thus breaking the layer’s structural integrity, bears great significance because the human tissue, or epithelium, covering organs can only fulfil its role if there are no holes or gaps between the cells.

Read more...

EPJ Plus - A note on Pöschl-Teller black holes

An interesting feature of black holes is the existence of quasi-normal modes, arising because the system has a peak in the wave potential (scalar, electromagnetic, or gravitational waves). The quasi-normal mode is excited when a disturbance is put in the field near but outside the black hole, (like a wave packet roughly in a circular orbit near the peak). The excitation then propagates outward and inward and decays.

Read more...

I’m fully satisfied with the services provided by Web of Conferences. Our contacts at EDP Sciences were consistently competent, helpful and tolerant of any errors or delays from our side. Their constant assistance was an essential part of the final successful web publication.

Augustin McEvoy, École polytechnique fédérale de Lausanne, Switzerland
Scientific Secretary EPJ Web of Conferences vol.33, 2012

ISSN: 2100-014X (Electronic Edition)

© EDP Sciences