2018 Impact factor 4.843
Particles and Fields

EPJ B - Market exchange rules responsible for wealth concentration

Next year’s Davos meeting could benefit from physicists’ insights on how new market rules help avoid wealth concentration.

Two Brazilian physicists have shown that wealth concentration invariably stems from a particular type of market exchange rules – where agents cannot receive more income than their own capital. The authors concluded that maximum inequalities ensue from free markets, which are governed by such seemingly fair rules. This study, published in EPJB was conducted by J. Roberto Iglesias and Rita de Almeida from the Brazilian National Institute of Science and Technology of Complex Systems, based in Porto Alegre. This Brazilian city is famous for hosting the World Social Forum, which is designed to find alternatives to economic liberalism.

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EPJ B - Tiling pattern governs quasicrystals’ magnetism

Review sheds light on the underlying magnetic qualities stemming from quasicrystals’ complex structure.

Few material classes have generated as much interest as quasicrystals. In a review published in EPJB quasicrystal expert Anuradha Jagannathan, from Paris-Sud University in Orsay, France, outlines the progress to date in the theory explaining the magnetic properties of these quasicrystals.

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EPJ B - Brain capacity limits exponential online data growth

Study of internet file sizes shows that information growth is self-limited by the human mind.

Scientists have found that the capacity of the human brain to process and record information - and not economic constraints - may constitute the dominant limiting factor for the overall growth of globally stored information. These findings have just been published in an article in EPJB by Claudius Gros and colleagues from the Institute for Theoretical Physics at Goethe University Frankfurt in Germany.

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EPJ B - Harnessing the predictive power of virtual communities

Reducing the disconnect between virtual network models and real-life communities.

Scientists have created a new algorithm to detect virtual communities, designed to match the needs of real-life social, biological or information networks detection better than with current attempts. The results of this study by Lovro Šubelj and his colleague Marko Bajec from the University of Ljubljana, Slovenia have just been published in EPJB.

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EPJ B - New model for epidemic contagion

Figure by Vladimir Golovin/photos.com

Improved estimates on the geographical spread of infectious diseases are achieved by studying human mobility networks

Humans are considered the hosts for spreading epidemics. The speed at which an epidemic spreads is now better understood thanks to a new model accounting for the provincial nature of human mobility, according to a study published in EPJB. The research was conducted by a team lead by Vitaly Belik from the Massachusetts Institute of Technology, USA, who is also affiliated with the Max Planck Institute for Dynamics and Self-Organization, Germany.

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EPJ B - Towards high-temperature superconductors

Scientists produce a new type of superconductor by manipulating graphene, the study of which led to a Nobel Prize

Chinese scientists have manipulated the charge and the degree of freedom, known as spin, of electrons and their associated magnetic properties in a single-layer carbon material called graphene, making it suitable for applications involving superconductivity, a quantum mechanical phenomenon in which electrons travel in a material with no electrical resistance. These findings have recently been published in an article in EPJB by Chunxu Bai from Anyang Normal University and colleagues from the Henan Institute of Science and Technology in Xinxiang.

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EPJ B - Random noise helps make signals clearer

Model shows that signal clarity only improves if specific energy conditions are met

Scientists have shown the energy conditions, under which a weak signal supplied to a physical system emerges as a stronger signal at the output thanks to the presence of random noise (a process known as stochastic resonance), in a paper that has just been published in EPJB.

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EPJ B - No extraordinary effects from microwave and mobile phone heating

Study quantifies effects of electric field-induced versus conventional heating

The effect of microwave heating and cell phone radiation on sample material is no different than a temperature increase, according to scientists from the Department of Chemistry and Biochemistry, Arizona State University, in Tempe, as published in a recent issue of EPJ B.

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EPJ B - Can metals remember their shape at nanoscale, too?

How nickel-titanium nanometric-size particles change back to their memorised shape

University of Constance physicists Daniel Mutter and Peter Nielaba have visualised changes in shape memory materials down to the nanometric scale in an article published in EPJB.

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EPJ B – Online activity grows in a similar pattern to those of real-life networks

The activity of online communities does not grow in line with the number of users, according to a model recently published in the European Physical Journal B.

The Internet has given rise to its own sorting devices. Among these, tagging consists in assigning user-chosen keywords to a piece of information (such as a digital image) to facilitate searches. Lingfei Wu, a researcher at the City University of Hong Kong’s Department of Media and Communication, used the tagging behaviour of social media application users to study the growth of online communities’ activity.

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Editors-in-Chief
L. Baudis, G. Dissertori, K. Skenderis and D. Zeppenfeld
Thank you for the quick and efficient review process.

Tim Scanlon

ISSN: 1434-6044 (Print Edition)
ISSN: 1434-6052 (Electronic Edition)

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