The use of polymersomes in drug delivery, medical imaging, micro-reactors or to mimic biophysical membrane phenomena is greatly dependent on the extent to which their properties can be controlled and tuned.
Tiny polymer droplets that crystallize on a surface are a shrewd expedient to study the birth of a polymer crystal by the elusive
homogeneous nucleation mechanism. In most cases, take for example the dust particle in a snowflake, nucleation starts from a heterogenous
defect. Homogenous nucleation is difficult to study because of the prevalence of defects in any bulk sample. Crystallization in small
droplets alleviates this difficulty in a manner that is conceptually simple: subdivide the system into more domains than the number of
defects. If the domains greatly outnumber the defects then only the homogenous mechanism can induce nucleation in a defect free compartment.
A colloquium published in EPJ B provides a thorough formulation of the theory of the insulating state by means of geometrical concepts, which were somewhat hidden and implicit in the original literature.
The need to store, distribute and analyze the 15 million gigabytes of data annually generated by the Large Hadron
Collider (LHC) at CERN has led to a revolutionary development of innovative software tools. Under CERN coordination,
leading IT teams have tested and validated cutting-edge software technologies aimed to operate distributed computing
and data storage infrastructures based on a worldwide network of hundreds of computing centers on an unprecedented
Individual success in competitive endeavors, such as sports or academia, is the result of many factors, some of which are
time-dependent. In order to compare human achievements from different time periods, we need to normalize success metrics
so as to avoid a time-dependent bias in the comparison of the statistical measures. A novel 'detrending' approach presented
in EPJ B removes precisely this bias and allows
for an objective comparison across time.
A key to our understanding of Quantum Chromodynamics (QCD) in the strong regime is our ability to
reproduce the hadronic excitation spectrum. Up to now, and due to their limited predictive power, quark
models forecast of this spectrum at high excitation energies is unsatisfactory and is dubbed ``the missing
resonances problem”. To explore the high excitation energies in the hadron spectrum production or scattering
of heavier mesons from a nucleon target is essential.
We are very pleased to announce that Jean-Marc Di Meglio, Physics Professor at the University Paris Diderot, has been appointed Editor in Chief of
EPJ E, with the special title of Commissioning Editor in Chief. From 1981 to 1994 he
worked in the laboratory of Pierre-Gilles de Gennes at College de France, and was Professor at the University of Strasbourg from 1994 to 2002 The
European Physical Journal E has benefitted from his editorial talent and vast expertise since 2007, when he joined the Editorial Board of the journal.
Professor Di Meglio's work ranges from soap films to bubbles, polymers, colloids and vesicles. His latest interest is in biomechanics. Professor Di
Meglio will work alongside Editors in Chief Daan Frenkel and Frank Julicher. We wish him a great experience in his new role.