4,837 research outputs found
Free Minimization of the Fundamental Measure Theory Functional: Freezing of Parallel Hard Squares and Cubes
Due to remarkable advances in colloid synthesis techniques, systems of
squares and cubes, once an academic abstraction for theorists and simulators,
are nowadays an experimental reality. By means of a free minimization of the
free-energy functional, we apply Fundamental Measure Theory to analyze the
phase behavior of parallel hard squares and hard cubes. We compare our results
with those obtained by the traditional approach based on the Gaussian
parameterization, finding small deviations and good overall agreement between
the two methods. For hard squares our predictions feature at intermediate
packing fraction a smectic phase, which is however expected to be unstable due
to thermal fluctuations. This implies that for hard squares the theory predicts
either a vacancy-rich second-order transition or a vacancy-poor weakly
first-order phase transition at higher density. In accordance with previous
studies, a second-order transition with a high vacancy concentration is
predicted for hard cubes
Many time scales in a single GRB
In some Gamma-Ray Bursts (GRBs) it has been possible to identify different time scales of variability. Certainly such a behaviour can easily be revealed in strong events, but it might represent a general behaviour of the GRBs. In this paper we report results of temporal variability for 5 events, 2 recorded by the previous experiments SIGNE and KONUS and 3 by the experiment BATSE on board the CGRO
satellite. This kind of analysis up to date can give new information to understand the origin of GRBs and the relative scenario of the burst energy emission
Density Functional Theory for Chiral Nematic Liquid Crystals
Even though chiral nematic phases were the first liquid crystals
experimentally observed more than a century ago, the origin of the
thermodynamic stability of cholesteric states is still unclear. In this Letter
we address the problem by means of a novel density functional theory for the
equilibrium pitch of chiral particles. When applied to right-handed hard
helices, our theory predicts an entropy-driven cholesteric phase, which can be
either right- or left-handed, depending not only on the particle shape but also
on the thermodynamic state. We explain the origin of the chiral ordering as an
interplay between local nematic alignment and excluded-volume differences
between left- and right-handed particle pairs
Tort Trends in 1957
This articles discusses trends in tort cases in 1957, including adequate awards, avaition law, jury fixing, the need for medico-legal training, insurance limits, consortium, charitable immunity, assumption of risk, res ipsa loquitur, workmen\u27s compensation, injuries in utero, warranties, interfamilial suits, expert witnesses, dead men\u27s statutes, and personal injury law reform
Quinney: The Social Reality of Crime
A Review of The Social Reality of Crime by Richard Quinne
American Bar Association Project on Minimum Standards for Criminal Justice: Standards Relating to Trial by Jury (Approved Draft)
A Review of American Bar Association Project on Minimum Standards for Criminal Justice: Standards Relating to Trial by Jury (Approved Draft). Recommended by the Advisory Committee on the Criminal Tria
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