title:
N\'eron models of jacobians over base schemes of dimension greater than
  1

abstract:
  We investigate to what extent the theory of N\'eron models of jacobians and
of abel-jacobi maps extends to relative curves over base schemes of dimension
greater than 1. We give a necessary and sufficient criterion for the existence
of a N\'eron model. We use this to show that, in general, N\'eron models do not
exist even after making a modification or even alteration of the base. On the
other hand, we show that N\'eron models do exist outside some codimension-2
locus.


title:
Linear Network Coding for Multiple Groupcast Sessions: An Interference
  Alignment Approach

abstract:
  We consider the problem of linear network coding over communication networks,
representable by directed acyclic graphs, with multiple groupcast sessions: the
network comprises of multiple destination nodes, each desiring messages from
multiple sources. We adopt an interference alignment perspective, providing new
insights into designing practical network coding schemes as well as the impact
of network topology on the complexity of the alignment scheme. In particular,
we show that under certain (polynomial-time checkable) constraints on networks
with $K$ sources, it is possible to achieve a rate of $1/(L+d+1)$ per source
using linear network coding coupled with interference alignment, where each
destination receives messages from $L$ sources ($L < K$), and $d$ is a
parameter, solely dependent on the network topology, that satisfies $0 \leq d <
K-L$.


title: Robotic manipulation of multiple objects as a POMDP

abstract:
  This paper investigates manipulation of multiple unknown objects in a crowded
environment. Because of incomplete knowledge due to unknown objects and
occlusions in visual observations, object observations are imperfect and action
success is uncertain, making planning challenging. We model the problem as a
partially observable Markov decision process (POMDP), which allows a general
reward based optimization objective and takes uncertainty in temporal evolution
and partial observations into account. In addition to occlusion dependent
observation and action success probabilities, our POMDP model also
automatically adapts object specific action success probabilities. To cope with
the changing system dynamics and performance constraints, we present a new
online POMDP method based on particle filtering that produces compact policies.
The approach is validated both in simulation and in physical experiments in a
scenario of moving dirty dishes into a dishwasher. The results indicate that:
1) a greedy heuristic manipulation approach is not sufficient, multi-object
manipulation requires multi-step POMDP planning, and 2) on-line planning is
beneficial since it allows the adaptation of the system dynamics model based on
actual experience.


title:
One-step implementation of multiqubit phase gate with one control qubit
  and multiple target qubits in coupled cavities

abstract:
  We propose a one-step scheme to implement a multiqubit controlled phase gate
of one qubit simultaneously controlling multiple qubits with three-level atoms
at distant nodes in coupled cavity arrays. The selective qubit-qubit couplings
are achieved by adiabatically eliminating the atomic excited states and
photonic states and the required phase shifts between the control qubit and any
target qubit can be realized through suitable choices of the parameters of the
external fields. Moreover, the effective model is robust against decoherence
because neither the atoms nor the field modes during the gate operation are
excited, leading to a useful step toward scalable quantum computing networks.


title:
Singular Solutions to the Bethe Ansatz Equations and Rigged
  Configurations

abstract:
  We provide a conjecture for the following two quantities related with the
spin-$\frac{1}{2}$ isotropic Heisenberg model defined over rings of even
lengths: (i) the number of the solutions to the Bethe ansatz equations which
correspond to non-zero Bethe vectors; (ii) the number of physical singular
solutions of the Bethe ansatz equations in the sense of Nepomechie-Wang. The
conjecture is based on a natural relationship between the solutions to the
Bethe ansatz equations and the rigged configurations.


title: Critical scaling in a cubic helimagnet Cu2OSeO3

abstract:
  We present a detailed AC susceptibility investigation of the fluctuation
regime in the insulating cubic helimagnet Cu2OSeO3. For magnetic fields mu_0 H
>= 200 mT, and over a wide temperature range, the system behaves according to
the scaling relations characteristic of the classical 3D Heisenberg model. For
lower magnetic fields the scaling is preserved only at higher T, and becomes
renormalized in a narrow T range above the transition temperature. Contrary to
the well-studied case of MnSi, where the renormalization has been interpreted
within the Brazovskii theory, our analysis of the renormalization at H = 0
shows the fluctuation regime in Cu2OSeO3 to lie closer to that expected within
the Wilson-Fischer scenario.


title: A Framework on Moment Model Reduction for Kinetic Equation

abstract:
  By a further investigation on the structure of the coefficient matrix of the
globally hyperbolic regularized moment equations for Boltzmann equation in [Z.
Cai, Y. Fan and R. Li, Comm. Math. Sci., 11 (2013), pp. 547-571], we propose a
uniform framework to carry out model reduction to general kinetic equations, to
achieve certain moment system. With this framework, the underlying reason why
the globally hyperbolic regularization in [Z. Cai, Y. Fan and R. Li, Comm.
Math. Sci., 11 (2013), pp. 547-571] works is revealed. The even fascinating
point is, with only routine calculation, existing models are represented and
brand new models are discovered. Even if the study is restricted in the scope
of the classical Grad's 13-moment system, new model with global hyperbolicity
can be deduced.


abstract:
  A systematic study of electron or hole transfer along DNA dimers, trimers and
polymers is presented with a tight-binding approach at the base-pair level,
using the relevant on-site energies of the base-pairs and the hopping
parameters between successive base-pairs. A system of $N$ coupled differential
equations is solved numerically with the eigenvalue method, allowing the
temporal and spatial evolution of electrons or holes along a $N$ base-pair DNA
segment to be determined. Useful physical quantities are defined and calculated
including the maximum transfer percentage $p$ and the pure maximum transfer
rate $\frac{p}{T}$ for cases where a period $T$ can be defined, as well as the
pure mean carrier transfer rate $k$ and the speed of charge transfer $u=kd$,
where $d = N \times$ 3.4 {\AA} is the charge transfer distance. The inverse
decay length $\beta$ used for the exponential fit $k = k_0 \exp(-\beta d)$ and
the exponent $\eta$ used for the power law fit $k = k_0' N^{-\eta}$ are
computed. The electron and hole transfer along polymers including
poly(dG)-poly(dC), poly(dA)-poly(dT), GCGCGC..., ATATAT... is studied, too.
$\beta$ falls in the range $\approx$ 0.2-2 {\AA}$^{-1}$, $k_0$ is usually
10$^{-2}$-10$^{-1}$ PHz although, generally, it falls in the wider range
10$^{-4}$-10 PHz. $\eta$ falls in the range $\approx$ 1.7-17, $k_0'$ is usually
$\approx 10^{-2}$-10$^{-1}$ PHz, although generally, it falls in the wider
range $\approx10^{-4}$-10$^3$ PHz. Finally, the results are compared with the
predictions of Wang et al. Phys. Rev. Lett. 93, (2004) 016401, as well as
experiments, including Murphy et al. Science 262, 1025 (1993); Arkin et al.
Science 273, 475 (1996); Giese et al. Angew. Chem. Int. Ed. 38, 996 (1999);
Giese et al. Nature 412, 318 (2001). This method allows to assess the extent at
which a specific DNA segment can serve as an efficient medium for charge
transfer.


title:
Solitary state at the edge of synchrony in ensembles with attractive and
  repulsive interaction

abstract:
  We discuss the desynchronization transition in networks of globally coupled
identical oscillators with attractive and repulsive interactions. We show that,
if attractive and repulsive groups act in antiphase or close to that, a
solitary state emerges with a single repulsive oscillator split up from the
others fully synchronized. With further increase of the repulsing strength, the
synchronized cluster becomes fuzzy and the dynamics is given by a variety of
stationary states with zero common forcing. Intriguingly, solitary states
represent the natural link between coherence and incoherence. The phenomenon is
described analytically for phase oscillators with sine coupling and
demonstrated numerically for more general amplitude models.


title: Pion photo- and electroproduction in relativistic baryon ChPT

abstract:
  We present a calculation of pion photo- and electroproduction in manifestly
Lorentz-invariant baryon chiral perturbation theory up to and including order
q^4. We fix the low-energy constants by fitting experimental data in all
available reaction channels. Our results can be accessed via a web interface,
the so-called chiral MAID.


title:
Carroll versus Newton and Galilei: two dual non-Einsteinian concepts of
  time

abstract:
  The Carroll group was originally introduced by Levy-Leblond [1] by
considering the limit of the Poincar\'e group as $c\to0$. In this paper an
alternative definition, based on the geometric properties of a non-Minkowskian,
non-Galilean but nevertheless boost-invariant, space-time structure is
proposed. A "duality" with the Galilean limit $c\to\infty$ is established. Our
theory is illustrated by Carrollian electromagnetism.


title: Realizability of hypergraphs and Ramsey link theory

abstract:
  We present short simple proofs of Conway-Gordon-Sachs' theorem on graphs in
3-dimensional space, as well as van Kampen-Flores' and Ummel's theorems on
nonrealizability of certain hypergraphs (or simplicial complexes) in
4-dimensional space. The proofs use a reduction to lower dimensions which
allows to exhibit relation between these results.
  We present a simplified exposition accessible to non-specialists in the area
and to students who know basic geometry of 3-dimensional space and who are
ready to learn straightforward 4-dimensional generalizations. We use elementary
language (e.g. collections of points) which allows to present the main ideas
without technicalities (e.g. without using the formal definition of a
hypergraph).


title:
On the next-to-leading holographic entanglement entropy in
  $AdS_{3}/CFT_{2}$

abstract:
  We reconsider the one-loop correction to the holographic entanglement entropy
in $AdS_{3}/CFT_{2}$ by analysing the contributions due to a bulk higher spin
$s$ current or a scalar field with scaling dimension $\Delta$. We consider the
two-interval case and work perturbatively in their small cross ratio $x$. We
provide various results for the entanglement entropy due to the so-called CDW
elements of the associated Schottky uniformization group. In particular, in the
higher spin current case, we obtain a closed formula for all the contributions
of the form $\mathcal O(x^{2s+p})$ up to $\mathcal O(x^{4s})$, where 2-CDW
elements are relevant. In the scalar field case, we calculate the similar
contributions for generic values of $\Delta$. The terms up to $\mathcal
O(x^{2\Delta+5})$ are compared with an explicit CFT calculation with full
agreement. The analysis exploits various simplifications which are valid in the
strict entanglement limit of the R\'enyi entropy. This allows to identify in a
clean way the relevant operators that provide the gravity result. The 2-CDW
contributions are also analysed and a closed formula for the leading $\mathcal
O(x^{4s})$ coefficient is presented as a function of the generic spin $s$. As a
specific application, we combine the CDW and 2-CDW calculations and present the
complete $\mathcal O(x^{4s+2})$ entanglement entropy for a spin $s=2,3,4$
higher spin current.


title: Quantum Algorithm for Linear Regression

abstract:
  We present a quantum algorithm for fitting a linear regression model to a
given data set using the least squares approach. Different from previous
algorithms which yield a quantum state encoding the optimal parameters, our
algorithm outputs these numbers in the classical form. So by running it once,
one completely determines the fitted model and then can use it to make
predictions on new data at little cost. Moreover, our algorithm works in the
standard oracle model, and can handle data sets with nonsparse design matrices.
It runs in time $\operatorname{poly}(\operatorname{log}(N), d, \kappa,
1/\epsilon)$, where $N$ is the size of the data set, $d$ is the number of
adjustable parameters, $\kappa$ is the condition number of the design matrix,
and $\epsilon$ is the desired precision in the output. We also show that the
polynomial dependence on $d$ and $\kappa$ is necessary. Thus, our algorithm
cannot be significantly improved. Furthermore, we also give a quantum algorithm
that estimates the quality of the least-squares fit (without computing its
parameters explicitly). This algorithm runs faster than the one for finding
this fit, and can be used to check whether the given data set qualifies for
linear regression in the first place.


title: The AllWISE Motion Survey and The Quest for Cold Subdwarfs

abstract:
  The AllWISE processing pipeline has measured motions for all objects detected
on WISE images taken between 2010 January and 2011 February. In this paper, we
discuss new capabilities made to the software pipeline in order to make motion
measurements possible, and we characterize the resulting data products for use
by future researchers. Using a stringent set of selection criteria, we find
22,445 objects that have significant AllWISE motions, of which 3,525 have
motions that can be independently confirmed from earlier 2MASS images yet lack
any published motions in SIMBAD. Another 58 sources lack 2MASS counterparts and
are presented as motion candidates only. Limited spectroscopic follow-up of
this list has already revealed eight new L subdwarfs. These may provide the
first hints of a "subdwarf gap" at mid-L types that would indicate the break
between the stellar and substellar populations at low metallicities (i.e., old
ages). Another object in the motion list -- WISEA J154045.67-510139.3 -- is a
bright (J ~ 9 mag) object of type M6; both the spectrophotometric distance and
a crude preliminary parallax place it ~6 pc from the Sun. We also compare our
list of motion objects to the recently published list of 762 WISE motion
objects from Luhman (2014). While these first large motion studies with WISE
data have been very successful in revealing previously overlooked nearby
dwarfs, both studies missed objects that the other found, demonstrating that
many other nearby objects likely await discovery in the AllWISE data products.


title: Electrical switch to the resonant magneto-phonon effect in graphene

abstract:
  We report a comprehensive study of the tuning with electric fields of the
resonant magneto-exciton optical phonon coupling in gated graphene. For
magnetic fields around $B \sim 25$ T which correspond to the range of the
fundamental magneto-phonon resonance, the electron-phonon coupling can be
switched on and off by tuning the position of the Fermi level in order to Pauli
block the two fundamental inter Landau level excitations. The effects of such a
profound change in the electronic excitation spectrum are traced through
investigations of the optical phonon response in polarization resolved
magneto-Raman scattering experiments. We report on the observation of a
splitting of the phonon feature with satellite peaks developing, at particular
values of the Landau level filling factor, on the low or on the high energy
side of the phonon, depending on the relative energy of the discrete electronic
excitation and of the optical phonon. Shifts of the phonon energy as large as
$\pm60$ cm$^{-1}$ are observed close to the resonance. The intraband electronic
excitation, the cyclotron resonance, is shown to play a relevant role in the
observed spectral evolution of the phonon response.


title: Symmetry in systems with gyroscopic forces

abstract:
  We consider a generalization of the notion of a natural mechanical system to
the case of additional forces of gyroscopic type. Such forces appear, for
example, as a result of global reduction of a natural system with symmetry. We
study symmetries in the systems with gyroscopic forces to find out when these
systems admit a global analogue of a cyclic integral. The results are applied
to the problem of the motion of a rigid body about a fixed point in potential
and gyroscopic forces to find the most general form of such forces admitting
the global area type integral.


title: Short-duration Radio Bursts with Apparent Extragalactic Dispersion

abstract:
  We present the results of the longest yet undertaken search for apparently
extragalactic radio bursts at the Bleien Radio Observatory covering 21000 hours
(898 days). The data were searched for events of less than 50 ms FWHM duration
showing a $\nu^{-2}$ drift in the spectrogram characteristic of the delay of
radio waves in plasma.
  We have found five cases suggesting dispersion measures between 350 and 400
cm$^{-3}$ pc while searching in the range of 50 -- 2000 cm$^{-3}$ pc. Four of
the five events occurred between 10.27 and 11.24 a.m. local civil time. The
only exception occurred at night with the full moon in the beam. It was an
event that poorly fits plasma dispersion, but had the characteristics of a
solar type III burst. However, we were not able to confirm that it was a lunar
reflection. All events were observed with a log-periodic dipole within 6800
hours but none with a more directional horn antenna observing the rest of the
time.
  These properties suggest a terrestrial origin of the "peryton" type reported
before. However, the cause of these events remains ambiguous.


title: A sterile neutrino at MiniBooNE and IceCube

abstract:
  We discuss the possibility that a sterile neutrino of mass around 50 MeV
slightly mixed with the muon flavor may be the origin of the MiniBooNE anomaly.
We show that its production in the atmosphere in a fraction of kaon decays
would imply an excess of contained showers at IceCube from down-going and
near-horizontal directions.


title:
Strongly Interacting Electroweak Symmetry Breaking Sector with a
  Higgs-like light scalar

abstract:
  The apparent finding of a 125-GeV light Higgs boson closes unitarity of the
minimal Standard Model (SM), that is weakly interacting: this is an exceptional
feature not generally true if new physics exists beyond the mass gap found at
the LHC up to 700 GeV. Such new physics induces departures of the low-energy
dynamics for the minimal electroweak symmetry-breaking sector, with three
Goldstone bosons (related to longitudinal W bosons) and one light scalar, from
the SM couplings. We calculate the scattering amplitudes among these four
particles and their partial-wave projections in effective theory. For this we
employ the Electroweak Chiral Lagrangian extended by one light scalar and carry
out the complete one-loop computation at high energy including the counterterms
needed for perturbative renormalization, of dimension eight. For most of
parameter space, the scattering is strongly interacting (with the SM a
remarkable exception). We therefore explore various unitarization methods, that
can already be applied to the tree-level $W_L W_L$ amplitude; we find and study
a natural second sigma-like scalar pole there.


title: Quenching the Haldane gap in spin-1 Heisenberg antiferromagnets

abstract:
  We consider a quasi-one-dimensional system of spin-1 Heisenberg
antiferromagnetic chains in 2D and 3D hypercubic lattices with interchain
coupling $J$ and uniaxial single-ion anisotropy $D$. Using large scale
numerical simulations, we map out the $J-D$ phase diagram and investigate the
low lying excitations of the Haldane phase in the $J\ll1$ limit. We also
provide direct evidence that the Haldane phase remains a non-trivial symmetry
protected topological state for small but finite $J$.


title:
An Erd{\H o}s-Ko-Rado theorem for permutations with fixed number of
  cycles

abstract:
  Let $S_{n}$ denote the set of permutations of $[n]=\{1,2,\dots, n\}$. For a
positive integer $k$, define $S_{n,k}$ to be the set of all permutations of
$[n]$ with exactly $k$ disjoint cycles, i.e., \[ S_{n,k} = \{\pi \in S_{n}: \pi
= c_{1}c_{2} \cdots c_{k}\},\] where $c_1,c_2,\dots ,c_k$ are disjoint cycles.
The size of $S_{n,k}$ is given by $\left [ \begin{matrix}n\\ k
\end{matrix}\right]=(-1)^{n-k}s(n,k)$, where $s(n,k)$ is the Stirling number of
the first kind. A family $\mathcal{A} \subseteq S_{n,k}$ is said to be $t$-{\em
intersecting} if any two elements of $\mathcal{A}$ have at least $t$ common
cycles. In this paper, we show that, given any positive integers $k,t$ with
$k\geq t+1$, there exists an integer $n_0=n_0(k,t)$, such that for all $n\geq
n_0$, if $\mathcal{A} \subseteq S_{n,k}$ is $t$-intersecting, then \[
|\mathcal{A}| \le \left [ \begin{matrix}n-t\\ k-t \end{matrix}\right],\] with
equality if and only if $\mathcal{A}$ is the stabiliser of $t$ fixed points.


title:
The impact of metallicity and dynamics on the evolution of young star
  clusters

abstract:
  The early evolution of a dense young star cluster (YSC) depends on the
intricate connection between stellar evolution and dynamical processes. Thus,
N-body simulations of YSCs must account for both aspects. We discuss N-body
simulations of YSCs with three different metallicities (Z=0.01, 0.1 and 1
Zsun), including metallicity-dependent stellar evolution recipes and
metallicity-dependent prescriptions for stellar winds and remnant formation. We
show that mass-loss by stellar winds influences the reversal of core collapse.
In particular, the post-collapse expansion of the core is faster in metal-rich
YSCs than in metal-poor YSCs, because the former lose more mass (through
stellar winds) than the latter. As a consequence, the half-mass radius expands
more in metal-poor YSCs. We also discuss how these findings depend on the total
mass and on the virial radius of the YSC. These results give us a clue to
understand the early evolution of YSCs with different metallicity.


title: Axis2UNO: Web Services Enabled Openoffice.org

abstract:
  Openoffice.org is a popular, free and open source office product. This
product is used by millions of people and developed, maintained and extended by
thousands of developers worldwide. Playing a dominant role in the web, web
services technology is serving millions of people every day. Axis2 is one of
the most popular, free and open source web service engines. The framework
presented in this paper, Axis2UNO, a combination of such two technologies is
capable of making a new era in office environment. Two other attempts to
enhance web services functionality in office products are Excel Web Services
and UNO Web Service Proxy. Excel Web Services is combined with Microsoft
SharePoint technology and exposes information sharing in a different
perspective within the proprietary Microsoft office products. UNO Web Service
Proxy is implemented with Java Web Services Developer Pack and enables basic
web services related functionality in Openoffice.org. However, the work
presented here is the first one to combine Openoffice.org and Axis2 and we
expect it to outperform the other efforts with the community involvement and
feature richness in those products.


title: Loop Unrolling in Multi-pipeline ASIP Design

abstract:
  Application Specific Instruction-set Processor (ASIP) is one of the popular
processor design techniques for embedded systems which allows customizability
in processor design without overly hindering design flexibility. Multi-pipeline
ASIPs were proposed to improve the performance of such systems by compromising
between speed and processor area. One of the problems in the multi-pipeline
design is the limited inherent instruction level parallelism (ILP) available in
applications. The ILP of application programs can be improved via a compiler
optimization technique known as loop unrolling. In this paper, we present how
loop unrolling effects the performance of multi-pipeline ASIPs. The
improvements in performance average around 15% for a number of benchmark
applications with the maximum improvement of around 30%. In addition, we
analyzed the variable of performance against loop unrolling factor, which is
the amount of unrolling we perform.


title: User Friendly Line CAPTCHAs

abstract:
  CAPTCHAs or reverse Turing tests are real-time assessments used by programs
(or computers) to tell humans and machines apart. This is achieved by assigning
and assessing hard AI problems that could only be solved easily by human but
not by machines. Applications of such assessments range from stopping spammers
from automatically filling online forms to preventing hackers from performing
dictionary attack. Today, the race between makers and breakers of CAPTCHAs is
at a juncture, where the CAPTCHAs proposed are not even answerable by humans.
We consider such CAPTCHAs as non user friendly. In this paper, we propose a
novel technique for reverse Turing test - we call it the Line CAPTCHAs - that
mainly focuses on user friendliness while not compromising the security aspect
that is expected to be provided by such a system.


title: Optimality of contraction-driven crawling

abstract:
  We study a model of cell motility where the condition of optimal trade-off
between performance and metabolic cost can be made precise. In this model a
steadily crawling fragment is represented by a layer of active gel placed on a
frictional surface and driven by contraction only. We find analytically the
distribution of contractile elements (pullers) ensuring that the efficiency of
self-propulsion is maximal. We then show that natural assumptions about
advection and diffusion of pullers produce a distribution that is remarkably
close to the optimal one and is qualitatively similar to the one observed in
experiments on fish keratocytes.


title: On homeomorphisms with the two-sided limit shadowing property

abstract:
  We prove that the two-sided limit shadowing property is among the strongest
known notions of pseudo-orbit tracing. It implies shadowing, average shadowing,
asymptotic average shadowing and specification properties. We also introduce a
weaker notion that is called two-sided limit shadowing with a gap and prove
that it implies shadowing and transitivity. We show that those two properties
allow to characterize topological transitivity and mixing in a class of
expansive homeomorphisms and hence they characterize transitive (mixing) shifts
of finite type.


title: Operation and performance of the CMS tracker

abstract:
  The CMS silicon tracker consists of two tracking devices utilizing
semiconductor technology: the inner pixel and the outer strip detectors. They
operate in a high-occupancy and high-radiation environment presented by
particle collisions in the LHC. The tracker detectors occupy the region around
the center of CMS, where the LHC beams collide, between 4 cm and 110 cm in
radius and up to 280 cm along the beam axis. The pixel detector consists of 66
million pixels, covering about 1 m2 total area. It is surrounded by the strip
tracker with 10 million read-out channels covering about 200 m2 total area. The
proceedings describe the operational experience collected during the first
three years of LHC running. Results include operational challenges encountered
during data taking that influence the active fraction and read-out efficiency
of the detectors. Details are given about the performance of the tracker at
high occupancy with respect to local observables such as signal to noise ratio
and hit reconstruction efficiency. Studies of radiation effects are presented
with respect to the evolution of sensor bias, read-out thresholds in the inner
pixels, and leakage current.


title:
Interface Dipole : Effects on Threshold Voltage and Mobility for both
  Amorphous and Poly-crystalline Organic Field Effect Transistors

abstract:
  We report a detailed comparison on the role of a self-assembled monolayer
(SAM) of dipolar molecules on the threshold voltage and charge carrier mobility
of organic field-effect transistor (OFET) made of both amorphous and
polycrystalline organic semiconductors. We show that the same relationship
between the threshold voltage and the dipole-induced charges in the SAM holds
when both types of devices are fabricated on strictly identical base
substrates. Charge carrier mobilities, almost constant for amorphous OFET, are
not affected by the dipole in the SAMs, while for polycrystalline OFET
(pentacene) the large variation of charge carrier mobilities is related to
change in the organic film structure (mostly grain size).


title:
An updated analytic model for the attenuation by the intergalactic
  medium

abstract:
  We present an updated version of the so-called Madau model for the
attenuation by the intergalactic neutral hydrogen against the radiation from
distant objects. First, we derive a distribution function of the intergalactic
absorbers from the latest observational statistics of the Ly$\alpha$ forest,
Lyman limit systems, and damped Ly$\alpha$ systems. The distribution function
excellently reproduces the observed redshift evolutions of the Ly$\alpha$
depression and of the mean-free-path of the Lyman continuum simultaneously.
Then, we derive a set of the analytic functions which describe the mean
intergalactic attenuation curve for objects at $z>0.5$. The new model predicts
less (or more) Ly$\alpha$ attenuation for $z\simeq3$--5 ($z>6$) sources through
usual broad-band filters relative to the original Madau model. This may cause a
systematic difference in the photometric redshift estimates, which is, however,
still as small as about 0.05. Finally, we find a more than 0.5 mag
overestimation of the Lyman continuum attenuation in the original Madau model
at $z>3$, which causes a significant overcorrection against direct observations
of the Lyman continuum of galaxies.


title: An approximate approach to the nonlinear DGLAP evaluation equation

abstract:
  We determined the effects of the first nonlinear corrections to the gluon
distribution using the solution of the QCD nonlinear
Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (NLDGLAP) evolution equation at
small x. By using a Laplace-transform technique, the behavior of the gluon
distribution is obtained by solving the Gribov, Levin, Ryskin, Mueller and Qiu
(GLR-MQ) evolution equation with the nonlinear shadowing term incorporated. We
show that the strong rise that is corresponding to the linear QCD evolution
equations at small x can be tamed by screening effects. Consequently, the
nonlinear effects for the gluon distributions are calculated and compared with
the results for the integrated gluon density from the Balitsky-Kovchegov (BK)
equation. The resulting analytic expression allows us to predict the shadowing
correction to the logarithmic derivative $F_{2}(x,Q^{2})$ with respect to $ln
Q^{2}$ and to compare the results with H1 data and a QCD analysis fit.


title: Discrete dynamics versus analytic dynamics

abstract:
  For discrete classical Molecular dynamics (MD) obtained by the "Verlet"
algorithm (VA) with the time increment $h$ there exists a shadow Hamiltonian
$\tilde{H}$ with energy $\tilde{E}(h)$, for which the discrete particle
positions lie on the analytic trajectories for $\tilde{H}$. Here we proof that
there, independent of such an analytic analogy, exists an exact hidden energy
invariance $E^*$ for VA dynamics.
  The fact that the discrete VA dynamics has the same invariances as Newtonian
dynamics raises the question, which of the formulations that are correct, or
alternatively, the most appropriate formulation of classical dynamics. In this
context the relation between the discrete VA dynamics and the (general)
discrete dynamics investigated by T. D. Lee [Phys. Lett. $\textbf{122B}$, 217
(1983)] is presented and discussed.


title: Evolution of the longitudinal structure function at small x

abstract:
  We derive an approximation approach to evolution of the longitudinal
structure function, by using a Laplace-transform method. We solve the master
equation and derive the longitudinal structure function as a function of the
initial condition $F_{L}(x,Q^{2}_{0})$ at small x. Our results are independent
of the longitudinal coefficient functions and extend from the leading order
(LO) up to next-to-next-to-leading order (NNLO). The comparisons with H1 data
and other parameterizations are made and results show that they are in
agreement with H1 data and some phenomenological models.


title: Photonic Hyper-Crystals

abstract:
  We introduce a new "universality class" of artificial optical media -
photonic hyper-crystals. These hyperbolic metamaterials with periodic spatial
variation of dielectric permittivity on subwavelength scale, combine the
features of optical metamaterials and photonic crystals. In particular, surface
waves supported by a hyper-crystal, possess the properties of both the optical
Tamm states in photonic crystals and surface plasmon polaritons at the
metal-dielectric interface.


title: Helioseismology with long range dark matter-baryon interactions

abstract:
  Assuming the existence of a primordial asymmetry in the dark sector, we study
how DM-baryon long-range interactions, induced by the kinetic mixing of a new
$U(1)$ gauge boson and the photon, affects the evolution of the Sun and in turn
the sound speed profile obtained from helioseismology. Thanks to the explicit
dependence on the exchanged momenta in the differential cross section
(Rutherford-like scattering), we find that dark matter particles with a mass of
$\sim 10\;{\rm GeV}$, kinetic mixing parameter of the order of $10^{-9}$ and a
mediator with a mass smaller than a few MeV improve the agreement between the
best solar model and the helioseismic data without being excluded by direct
detection experiments. In particular, the \LUX\ detector will soon be able to
either constrain or confirm our best fit solar model in the presence of a dark
sector with long-range interactions that reconcile helioseismology with thermal
neutrino results.

categories: astro-ph.SR astro-ph.CO astro-ph.HE hep-ex hep-ph


title: Spontaneous symmetry breaking in dual-core baby-Skyrmion systems

abstract:
  We introduce a system composed of two (2+1)-dimensional baby-skyrmion models
(BSMs) set on parallel planes and linearly coupled by tunneling of fields. This
system can be realized in a dual-layer ferromagnetic medium. Unlike dual-core
models previously studied\ in nonlinear optics and BEC, here the
symmetry-breaking bifurcation (SBB) in solitons (baby skyrmions) occurs with
the increase of the inter-core coupling ($\kappa$), rather than with its
decrease, due to the fact that even in the uncoupled system neither core may be
empty. Prior to the onset of the symmetry breaking between the two components
of the solitons, they gradually separate in the lateral direction, due to the
increase of $\kappa$, which is explained in an analytical form by means of an
effective interaction potential. Such evolution scenario are produced for the
originally symmetric states with topological charges in the two cores
$\left(B^{(1)},B^{(2)}\right)$, with $% B^{(1)}=B^{(2)}=1,2,3,4$. The evolution
of mixed states, of the $\left(1,2\right)$ and $\left(2,4\right)$ types, with
the variation of $\kappa$ is studied too.


title: Square-free numbers in arithmetic progressions

abstract:
  We give asymptotics for correlation sums linked with the distribution of
squarefree numbers in arithmetic progressions over a fixed modulus. As a
particular case we improve a result of Blomer concerning the variance.


title: Polynomial exponential equations and Zilber's conjecture

abstract:
  Assuming Schanuel's conjecture, we prove that any polynomial exponential
equation in one variable must have a solution that is transcendental over a
given finitely generated field. With the help of some recent results in
Diophantine geometry, we obtain the result by proving (unconditionally) that
certain polynomial exponential equations have only finitely many rational
solutions.
  This answers affirmatively a question of David Marker, who asked, and proved
in the case of algebraic coefficients, whether at least the one-variable case
of Zilber's strong exponential-algebraic closedness conjecture can be reduced
to Schanuel's conjecture.


title:
On the Computation of Multivariate Scenario Sets for the Skew-t and
  Generalized Hyperbolic Families

abstract:
  We examine the problem of computing multivariate scenarios sets for skewed
distributions. Our interest is motivated by the potential use of such sets in
the "stress testing" of insurance companies and banks whose solvency is
dependent on changes in a set of financial "risk factors". We define
multivariate scenario sets based on the notion of half-space depth (HD) and
also introduce the notion of expectile depth (ED) where half-spaces are defined
by expectiles rather than quantiles. We then use the HD and ED functions to
define convex scenario sets that generalize the concepts of quantile and
expectile to higher dimensions. In the case of elliptical distributions these
sets coincide with the regions encompassed by the contours of the density
function. In the context of multivariate skewed distributions, the equivalence
of depth contours and density contours does not hold in general. We consider
two parametric families that account for skewness and heavy tails: the
generalized hyperbolic and the skew-t distributions. By making use of a
canonical form representation, where skewness is completely absorbed by one
component, we show that the HD contours of these distributions are
"near-elliptical" and, in the case of the skew-Cauchy distribution, we prove
that the HD contours are exactly elliptical. We propose a measure of
multivariate skewness as a deviation from angular symmetry and show that it can
explain the quality of the elliptical approximation for the HD contours.


title:
Ultra compact dwarfs in the Perseus Cluster: UCD formation via tidal
  stripping

abstract:
  We present the results of a Keck/DEIMOS survey of Ultra Compact Dwarfs (UCDs)
in the Perseus Cluster core. We confirm cluster membership for 14 UCDs, with
radial velocities ~5300 km s$^{-1}$. Two of these confirmed Perseus UCDs have
extremely blue colours ($B-R < 0.6$ mag), reside in star forming filaments
surrounding NGC 1275, and have likely formed as massive star clusters in the
last ~100 Myr. We also measure a central velocity dispersion of a third, UCD13
($\sigma_0 = 38 \pm 8$ km s$^{-1}$), the most extended UCD in our sample. We
determine it to have radius $R_{e} = 85 \pm 1.1$ pc, a dynamical mass of ($2.3
\pm 0.8)\times10^{8}$ M$_{\odot}$, and a metallicity [Z/H]$=
-0.52^{+0.33}_{-0.29}$ dex. UCD13 and the cluster's central galaxy, NGC 1275,
have a projected separation of 30 kpc and a radial velocity difference of ~20
km s$^{-1}$. Based on its size, red colour, internal velocity dispersion,
dynamical mass, metallicity and proximity to NGC 1275, we argue that UCD13 is
likely the remnant nucleus of a tidally stripped dE, with this progenitor dE
having $M_{B} \approx -16$ mag and mass $\sim10^{9}$ M$_{\odot}$.


title: Generalized Sub-Schawlow-Townes Laser Linewidths Via Material Dispersion

abstract:
  A recent S matrix-based theory of the quantum-limited linewidth, which is
applicable to general lasers, including spatially non-uniform laser cavities
operating above threshold, is analyzed in various limits. For broadband gain, a
simple interpretation of the Petermann and bad-cavity factors is presented in
terms of geometric relations between the zeros and poles of the S matrix. When
there is substantial dispersion, on the frequency scale of the cavity lifetime,
the theory yields a generalization of the bad-cavity factor, which was
previously derived for spatially uniform one-dimensional lasers. This effect
can lead to sub-Schawlow-Townes linewidths in lasers with very narrow gain
widths. We derive a formula for the linewidth in terms of the lasing mode
functions, which has accuracy comparable to the previous formula involving the
residue of the lasing pole. These results for the quantum-limited linewidth are
valid even in the regime of strong line-pulling and spatial hole-burning, where
the linewidth cannot be factorized into independent Petermann and bad-cavity
factors.


title:
Elastic trapping of dislocation loops in cascades in ion-irradiated
  tungsten foils

abstract:
  Using _in situ_ transmission electron microscopy (TEM), we have observed
nanometre scale dislocation loops formed when an ultra-high-purity tungsten
foil is irradiated with a very low fluence of self-ions. Analysis of the TEM
images has revealed the largest loops to be predominantly of prismatic 1/2<111>
type and of vacancy character. The formation of such dislocation loops is
surprising since isolated loops are expected to be highly mobile, and should
escape from the foil. In this work we show that the observed size and number
density of loops can be explained by the fact that the loops are _not_ isolated
- the loops formed in close proximity in the cascades interact with each other
and with vacancy clusters, also formed in cascades, through long-range elastic
fields, which prevent the escape of loops from the foil. We find that
experimental observations are well reproduced by object Kinetic Monte Carlo
simulations of evolution of cascades _only_ if elastic interaction between the
loops is taken into account. Our analysis highlights the profound effect of
elastic interaction between defects on the microstructural evolution of
irradiated materials.


title: On complete stationary vacuum initial data

abstract:
  We describe a proof of M.T. Anderson's result on the rigidity of complete
stationary initial data for the Einstein vacuum equations in spacetime
dimension 3 + 1, under an extra assumption on the norm of the stationary
Killing vector field. The argument only involves basic comparison geometry
along with some Bochner-Weitzenb\"ock formula techniques. We also discuss on
the possibility to extend those techniques in higher dimensions.


title:
WFPC2 UV survey of Galactic Globular Clusters. The Horizontal Branch
  temperature distribution

abstract:
  Ultraviolet observations are the best tool to study hot stellar populations
which emit most of their light at short wavelengths. As part of a large project
devoted to the characterization of the UV properties of Galactic globular
clusters (GGCs), we collected mid/far UV and optical images with the WFPC2@HST
for 31 GGCs. These clusters cover a wide range in metallicity and structural
parameters, thus representing an ideal sample for comparison with theoretical
models. Here we present the first results from an ongoing analysis aimed at
deriving the temperature distribution of Horizontal Branch stars in GGCs.


title: Close-to-convexity of some special functions and their derivatives

abstract:
  In this paper our aim is to deduce some sufficient (and necessary) conditions
for the close-to-convexity of some special functions and their derivatives,
like Bessel functions, Struve functions, and a particular case of Lommel
functions of the first kind, which can be expressed in terms of the
hypergeometric function ${}_1F_2$. The key tool in our proofs is a result of
Shah and Trimble about transcendental entire functions with univalent
derivatives. Moreover, a known result of P\'olya on entire functions, the
infinite product representations and some results on zeros of Bessel, Struve
and Lommel functions of the first kind are used in order to achieve the main
results of the paper.


title: A survey on Human Computer Interaction Mechanism Using Finger Tracking

abstract:
  Human Computer Interaction (HCI) is a field in which developer makes a user
friendly system. User can interact with a computer system without using any
conventional peripheral devices. Marker is used to recognize hand movement
accurately & successfully. Researchers establish the mechanism to interact with
computer system using computer vision. The interaction is better than normal
static keyboard and mouse. This paper represents most of innovative mechanisms
of the finger tracking used to interact with a computer system using computer
vision.


title: Particle Metropolis adjusted Langevin algorithms for state space models

abstract:
  Particle MCMC is a class of algorithms that can be used to analyse
state-space models. They use MCMC moves to update the parameters of the models,
and particle filters to propose values for the path of the state-space model.
Currently the default is to use random walk Metropolis to update the parameter
values. We show that it is possible to use information from the output of the
particle filter to obtain better proposal distributions for the parameters. In
particular it is possible to obtain estimates of the gradient of the log
posterior from each run of the particle filter, and use these estimates within
a Langevin-type proposal. We propose using the recent computationally efficient
approach of Nemeth et al. (2013) for obtaining such estimates. We show
empirically that for a variety of state-space models this proposal is more
efficient than the standard random walk Metropolis proposal in terms of:
reducing autocorrelation of the posterior samples, reducing the burn-in time of
the MCMC sampler and increasing the squared jump distance between posterior
samples.


title: Dark Matter Massive Fermions and Einasto Profiles in Galactic Haloes

abstract:
  On the basis of a fermionic dark matter model we fit rotation curves of The
HI Nearby Galaxy Survey THINGS sample and compare our 3-parametric model to
other models widely used in the literature: 2-parametric Navarro--Frenk--White,
pseudoisothermal sphere, Burkhert models, and 3-parametric Einasto model,
suggested as the new "standard dark matter profile" model in the paper by
Chemin et. al., AJ 142 (2011) 109. The results from the fitting procedure
provides evidence for an underlying fermionic nature of the dark matter
candidate, with rest mass above the keV regime.


title:
On-Demand Grid Provisioning Using Cloud Infrastructures and Related
  Virtualization Tools: A Survey and Taxonomy

abstract:
  Recent researches have shown that grid resources can be accessed by client
on-demand, with the help of virtualization technology in the Cloud. The virtual
machines hosted by the hypervisors are being utilized to build the grid network
within the cloud environment. The aim of this study is to survey some concepts
used for the on-demand grid provisioning using Infrastructure as a Service
Cloud and the taxonomy of its related components. This paper, discusses the
different approaches for on-demand grid using infrastructural Cloud, the issues
it tries to address and the implementation tools. The paper also, proposed an
extended classification for the virtualization technology used and a new
classification for the Grid-Cloud integration which was based on the
architecture, communication flow and the user demand for the Grid resources.
This survey, tools and taxonomies presented here will contribute as a guide in
the design of future architectures for further researches.


title:
Constraining the mass-concentration relation through weak lensing peak
  function

abstract:
  Halo masses and concentrations have been studied extensively, by means of
N-body simulations as well as observationally, during the last decade.
Nevertheless, the exact form of the mass-concentration relation is still widely
debated. One of the most promising method to estimate masses and concentrations
relies on gravitational lensing from massive halos. Here we investigate the
impact of the mass-concentration relation on halo peak abundance in weak
lensing shear maps relying on the aperture mass method for peak detections.
After providing a prescription to take into account the concentration
dispersion (always neglected in previous works) in peak number counts
predictions, we assess their power to constrain the mass-concentration relation
by means of Fisher matrix technique. We find that, when combined with different
cosmological probes, peak statistics information from near-future weak lensing
surveys provides an interesting and complementary alternative method to lessen
the long standing controversy about the mass-concentration relation.


title:
User Friendly Implementation for Efficiently Conducting Hammersmith
  Infant Neurological Examination

abstract:
  The aim of this work is to design a semi-automatic application that can be
used as an aid by the doctors for smoothly conducting Hammersmith Infant
Neurological Examination (IDNE). A simplified version of the examination which
provides a quantitative neurological assessment is used to design the
application. The application includes a methodology of conducting IDNE
examination suited to inexperienced staff, applicable to both neonatal and
post-neonatal infants. It also provides a facility to go through the previous
records of a patient that can help in diagnosing patients with high risk of
neurological disorder. A semi-automatic approach is proposed for skeleton
generation. The application has been installed in hospitals and currently in
operation. It is expected to increase the efficiency of conducting HINE using
the proposed application.


title: On the local approximation of mean densities of random closed sets

abstract:
  Mean density of lower dimensional random closed sets, as well as the mean
boundary density of full dimensional random sets, and their estimation are of
great interest in many real applications. Only partial results are available so
far in current literature, under the assumption that the random set is either
stationary, or it is a Boolean model, or it has convex grains. We consider here
non-stationary random closed sets (not necessarily Boolean models), whose
grains have to satisfy some general regularity conditions, extending previous
results. We address the open problem posed in (Bernoulli 15 (2009) 1222-1242)
about the approximation of the mean density of lower dimensional random sets by
a pointwise limit, and to the open problem posed by Matheron in (Random Sets
and Integral Geometry (1975) Wiley) about the existence (and its value) of the
so-called specific area of full dimensional random closed sets. The
relationship with the spherical contact distribution function, as well as some
examples and applications are also discussed.


title: On the distribution of dark matter in galaxies: quantum treatments

abstract:
  The problem of modeling the distribution of dark matter in galaxies in terms
of equilibrium configurations of collisionless self-gravitating quantum
particles is considered. We first summarize the pioneering model of a Newtonian
self-gravitating Fermi gas in thermodynamic equilibrium developed by Ruffini
and Stella (1983), which is shown to be the generalization of the King model
for fermions. We further review the extension of the former model developed by
Gao, Merafina and Ruffini (1990), done for any degree of fermion degeneracy at
the center ($\theta_0$), within general relativity. Finally, we present here
for the first time the solutions of the density profiles and rotation curves
corresponding to the Gao et. al. model, which have a definite mass $M_h$ and
circular velocity $v_h$, at the halo radius $r_h$ of the configurations,
typical of spiral galaxies. This treatment allow us to determine a novel
core-halo morphology for the dark matter profiles, as well as a novel particle
mass bound associated with them.


title:
Spin and orbital magnetic moments of size-selected iron, cobalt, and
  nickel clusters and their link to the bulk phase diagrams

abstract:
  Spin and orbital magnetic moments of cationic iron, cobalt, and nickel
clusters have been determined from x-ray magnetic circular dichroism
spectroscopy. In the size regime of $n = 10 - 15$ atoms, these clusters show
strong ferromagnetism with maximized spin magnetic moments of 1~$\mu_B$ per
empty $3d$ state because of completely filled $3d$ majority spin bands. The
only exception is $\mathrm{Fe}_{13}^+$ where an unusually low average spin
magnetic moment of $0.73 \pm 0.12$~$\mu_B$ per unoccupied $3d$ state is
detected; an effect, which is neither observed for $\mathrm{Co}_{13}^+$ nor
$\mathrm{Ni}_{13}^+$.\@ This distinct behavior can be linked to the existence
and accessibility of antiferromagnetic, paramagnetic, or nonmagnetic phases in
the respective bulk phase diagrams of iron, cobalt, and nickel. Compared to the
experimental data, available density functional theory calculations generally
seem to underestimate the spin magnetic moments significantly. In all clusters
investigated, the orbital magnetic moment is quenched to $5 - 25$\,\% of the
atomic value by the reduced symmetry of the crystal field. The magnetic
anisotropy energy is well below 65 $\mu$eV per atom.


title:
Ground and excited state properties of the polar and paramagnetic RbSr
  molecule: a comparative study

abstract:
  This paper deals with the electronic structure of RbSr, a molecule possessing
both a permanent magnetic and electric dipole moment in its own frame allowing
its manipulation with external fields. Two complementary ab-initio approaches
are used for the ground and lowest excited states: first, an approach relying
on optimized effective core potentials with core polarization potentials based
on a full configuration interaction involving three valence electrons, and
second, an approach using a small-size effective core potential with 19
correlated electrons in the framework of coupled-cluster theory. We have found
excellent agreement between these two approaches for the ground state
properties including the permanent dipole moment. We have focused on studies of
excited states correlated to the two lowest asymptotes Rb(5p)+Sr(5s) and
Rb(5s)+Sr(5s5p) relevant for ongoing experiments on quantum degenerate gases.
We present also the Hund c) case potential curves obtained using atomic
spin-orbit constants. These potential curves are an excellent starting point
for experimental studies of molecular structure of RbSr using high-resolution
spectroscopy.


title:
Tunnel determinants from spectral zeta functions. Instanton effects in
  quantum mechanics

abstract:
  In this paper we develop an spectral zeta function regularization procedure
on the determinants of instanton fluctuation operators that describe the
semi-classical order of tunnel effects bewtween degenerate vacua.


title: Isochronous Cosmologies

abstract:
  The possibility has been recently demonstrated to manufacture
(nonrelativistic, Hamiltonian) many-body problems which feature an isochronous
time evolution with an arbitrarily assigned period $T$ yet mimic with good
approximation, or even exactly, any given many-body problem (within a large,
physically relevant, class) over times $\tilde{T}$ which may also be
arbitrarily large (but of course such that $\tilde{T}<T$). Purpose and scope of
this paper is to explore the possibility to extend this finding to a general
relativity context. For simplicity we restrict our consideration to the case of
homogeneous and isotropic metrics and show that, via an approach analogous to
that used for the nonrelativistic many-body problem, a class of homogeneous and
isotropic cyclic solutions of Einstein's equations may be obtained. For these
solutions the duration of the cycles does not depend on the initial conditions,
so we call these models isochronous cosmologies. We give a physical
interpretation of such metrics and in particular we show that they may behave
arbitrarily closely, or even identically, to the Friedman-Robertson-Walker
solutions of Einstein's equations for an arbitrarily long time (of course
shorter than their period, which can also be assigned arbitrarily), so that
they may reproduce all the satisfactory phenomenological features of the
standard cosmological $\Lambda $-CDM model in a portion of their cycle; while
these isochronous cosmologies may be geodesically complete and therefore
singularity-free.


title: Implicational Relevance Logic is 2-EXPTIME-Complete

abstract:
  We show that provability in the implicational fragment of relevance logic is
complete for doubly exponential time, using reductions to and from coverability
in branching vector addition systems.


title: Topics in the Mathematical Physics of Cold Bose Gases

abstract:
  In these notes of six lectures on selected topics in the theory of cold,
dilute Bose gases, presented at the 5th Warsaw School of Statistical Physics in
June 2013, the following topics are discussed: 1) The concept of BEC, 2) the
ground state energy of a dilute Bose gas with short range interactions, 3)
Gross-Pitaevskii theory and BEC in trapped gases, 4) Bose gases in rotating
traps and quantized vortices, and 5) strongly correlated phases in the lowest
Landau level generated by rapid rotation.


title:
Multiplicity fluctuations of identified hadrons in p+p interactions at
  SPS energies

abstract:
  Study of energy and system size fluctuations of identified hadrons is one of
the key goals of NA61/SHINE at the CERN SPS. Results may allow to discover the
critical point (CP) of strongly interacting matter as well as to uncover
properties of the onset of deconfinement (OD). But fluctuations exhibit
numerous other sources starting from most basic ones like volume effects and
conservation laws.
  NA49 seems to observe fluctuations related to CP in collisions of medium size
nuclei at top SPS energy. However, this result will remain inconclusive until
systematic data on energy and system size dependence will be available.
Moreover, fluctuations in p+p as well as in Pb+Pb interactions should be better
understood.
  In this contribution results on multiplicity fluctuations of identified
hadrons in p+p interactions at the CERN SPS energies will be presented. The
NA61 data will be compared with the corresponding results from central Pb+Pb
collisions of NA49 in the common acceptance region of both experiments.
Moreover, predictions of models (EPOS, UrQMD and HSD) for both reactions will
be tested.


title: Microstrip Coupler Design Using Bat Algorithm

abstract:
  Evolutionary and swarm algorithms have found many applications in design
problems since todays computing power enables these algorithms to find
solutions to complicated design problems very fast. Newly proposed hybrid
algorithm, bat algorithm, has been applied for the design of microwave
microstrip couplers for the first time. Simulation results indicate that the
bat algorithm is a very fast algorithm and it produces very reliable results.


title: Probing QCD Parameters with Top-Quark Data

abstract:
  Results from inclusive and differential measurements of the production cross
sections for top quarks in proton-proton collisions at center-of-mass energies
of 7 and 8 TeV are compared to predictions at next-to-leading and
next-to-next-to-leading order in perturbative Quantum Chromodynamics. From
these studies, constraints on the top-quark mass, the strong coupling constant,
and on parton distributions functions are determined.


title:
Short-term plasticity as cause-effect hypothesis testing in distal
  reward learning

abstract:
  Asynchrony, overlaps and delays in sensory-motor signals introduce ambiguity
as to which stimuli, actions, and rewards are causally related. Only the
repetition of reward episodes helps distinguish true cause-effect relationships
from coincidental occurrences. In the model proposed here, a novel plasticity
rule employs short and long-term changes to evaluate hypotheses on cause-effect
relationships. Transient weights represent hypotheses that are consolidated in
long-term memory only when they consistently predict or cause future rewards.
The main objective of the model is to preserve existing network topologies when
learning with ambiguous information flows. Learning is also improved by biasing
the exploration of the stimulus-response space towards actions that in the past
occurred before rewards. The model indicates under which conditions beliefs can
be consolidated in long-term memory, it suggests a solution to the
plasticity-stability dilemma, and proposes an interpretation of the role of
short-term plasticity.


title:
Microscopic Coexistence of Magnetism and Superconductivity in charge
  compensated Ba1-xKx(Fe1-yCoy)2As2

abstract:
  We present a detailed investigation of the electronic phase diagram of
effectively charge compensated Ba1-xKx(Fe1-yCoy)2As2 with x/2 = y. Our
experimental study by means of x-ray diffraction, M\"ossbauer spectroscopy,
muon spin relaxation and ac susceptibility measurements on polycrystalline
samples is complemented by density functional electronic structure
calculations. For low substitution levels of x/2 = y \< 0.13, the system
displays an orthorhombically distorted and antiferromagnetically ordered ground
state. The low temperature structural and magnetic order parameters are
successively reduced with increasing substitution level. We observe a linear
relationship between the structural and the magnetic order parameter as a
function of temperature and substitution level for x/2 = y \< 0.13. At
intermediate substitution levels in the range between 0.13 and 0.19, we find
superconductivity with a maximum Tc of 15 K coexisting with static magnetic
order on a microscopic length scale. For higher substitution levels x/2 = y \>
0.25 a tetragonal non-magnetic ground state is observed. Our DFT calculations
yield a signifcant reduction of the Fe 3d density of states at the Fermi energy
and a strong suppression of the ordered magnetic moment in excellent agreement
with experimental results. The appearance of superconductivity within the
antiferromagnetic state can by explained by the introduction of disorder due to
non-magnetic impurities to a system with a constant charge carrier density. Our
experimental study by means of x-ray diffraction, M\"ossbauer spectroscopy,
muon spin relaxation and ac susceptibility measurements on polycrystalline
samples is complemented by density functional electronic structure
calculations.


title: Inviscid Limit for 2D Stochastic Navier-Stokes equations

abstract:
  We consider stochastic Navier-Stokes equations in a 2D-bounded domain with
the Navier with friction boundary condition. We establish the existence and the
uniqueness of the solutions and study the vanishing viscosity limit. More
precisely, we prove that solutions of stochastic Navier-Stokes equations
converge, as the viscosity goes to zero, to solutions of the corresponding
stochastic Euler equations.


title: Efficiency at maximum power of motor traffic on networks

abstract:
  We study motor traffic on Bethe networks subject to hard-core exclusion for
both tightly coupled one-state machines and loosely coupled two-state machines
that perform work against a constant load. In both cases we find an
interaction-induced enhancement of the efficiency at maximum power (EMP) as
compared to non-interacting motors. The EMP enhancement occurs for a wide range
of network and single motor parameters and is due to a change in the
characteristic load-velocity relation caused by phase transitions in the
system. Using a quantitative measure of the trade-off between the EMP
enhancement and the corresponding loss in the maximum output power we identify
parameter regimes where motor traffic systems operate efficiently at maximum
power without a significant decrease in the maximum power output due to jamming
effects.


title: Mode competition and anomalous cooling in a multimode phonon laser

abstract:
  We study mode competition in a multimode "phonon laser" comprised of an
optical cavity employing a highly reflective membrane as the output coupler.
Mechanical gain is provided by the intracavity radiation pressure, to which
many mechanical modes are coupled. We calculate the gain, and find that strong
oscillation in one mode suppresses the gain in other modes. For sufficiently
strong oscillation, the gain of the other modes actually switches sign and
becomes damping, a process we call "anomalous cooling." We demonstrate that
mode competition leads to single-mode operation and find excellent agreement
with our theory, including anomalous cooling.


title: Vorticity, Defects and Correlations in Active Turbulence

abstract:
  We describe a numerical investigation of a continuum model of an active
nematic, concentrating on the regime of active turbulence. Results are
presented for the effect of three parameters, activity, elastic constant and
rotational diffusion constant, on the order parameter and flow fields. Defects
and distortions in the director field act as sources of vorticity, and thus
vorticity is strongly correlated to the director field. In particular the
characteristic length of decay of vorticity and order parameter correlations is
controlled by the defect density. By contrast the decay of velocity
correlations is determined by a balance between activity and dissipation. We
highlight the role of microscopic flow generation mechanisms in determining the
flow patterns and characteristic scales of active turbulence and contrast the
behaviour of extensile and contractile active nematics.


title:
Anomalous diffusion in nonhomogeneous media: Time-subordinated Langevin
  equation approach

abstract:
  Diffusion in nonhomogeneous media is described by a dynamical process driven
by a general Levy noise and subordinated to a random time; the subordinator
depends on the position. This problem is approximated by a multiplicative
process subordinated to a random time: it separately takes into account effects
related to the medium structure and the memory. Density distributions and
moments are derived from the solutions of the corresponding Langevin equation
and compared with the numerical calculations for the exact problem. Both
subdiffusion and enhanced diffusion are predicted. Distribution of the process
satisfies the fractional Fokker-Planck equation.


title:
The First Simultaneous 3.5 and 1.3mm Polarimetric Survey of Active
  Galactic Nuclei in the Northern Sky

abstract:
  Short millimeter observations of radio-loud AGN offer the opportunity to
study the physics of their inner relativistic jets, from where the bulk
millimeter emission is radiated. Millimeter jets are significantly less
affected by Faraday rotation and depolarization than in radio. Also, the
millimeter emission is dominated by the innermost jet regions, that are
invisible in radio owing to synchrotron opacity. We present the first dual
frequency simultaneous 86GHz and 229GHz polarimetric survey of all four Stokes
parameters of a large sample of 211 radio loud active galactic nuclei, designed
to be flux limited at 1Jy at 86GHz. The observations were most of them made in
mid August 2010 using the XPOL polarimeter on the IRAM 30 m millimeter radio
telescope. Linear polarization detections above 3 sigma median level of ~1.0%
are reported for 183 sources at 86GHz, and for 23 sources at 229GHz, where the
median 3 sigma level is ~6.0%. We show a clear excess of the linear
polarization degree detected at 229GHz with regard to that at 86GHz by a factor
of ~1.6, thus implying a progressively better ordered magnetic field for blazar
jet regions located progressively upstream in the jet. We show that the linear
polarization angle, both at 86 and 229GHz, and the jet structural position
angle for both quasars and BL Lacs do not show a clear preference to align in
either parallel or perpendicular directions. Our variability study with regard
to the 86GHz data from our previous survey points out a large degree variation
of total flux and linear polarization in time scales of years by median factors
of ~1.5 in total flux, and ~1.7 in linear polarization degree -maximum
variations by factors up to 6.3, and ~5, respectively-, with 86% of sources
showing linear polarization angles evenly distributed with regard to our
previous measurements.


title:
Vacuum fluctuation of conformally coupled scalar field in FLRW
  space-times

abstract:
  The regularized vacuum fluctuation related to a conformally coupled massless
scalar field defined on a space-time with dynamical horizon is computed with
respect a radially moving observer in a generic flat Friedmann-Robertson-Walker
space-time. Two simple measurement prescriptions are given in order to remove
the ambiguity associated with the short distance singularity of the correlation
function. In some cases, it turns out that one is dealing with a quantum
thermometer, recovering a proposal due to Buchholzet al. in order to determine
local temperature in the framework of quantum field theory. In general, by
arranging the detector so that it does not register for inertial motion in flat
space, the regularized quantum fluctuation may be used as a probe of space-time
geometry and, in particular, may provide informations on the Hubble parameter.
As an aside, it is not possible in general to fully decouple the effect of the
detector motion from the universe expansion, a fact that could be interpreted
as a kind of Machian effect which can be traced back to the worldwide nature of
the vacuum.


title:
Variational Necessary and Sufficient Stability Conditions for Inviscid
  Shear Flow

abstract:
  A necessary and sufficient condition for linear stability of inviscid
parallel shear flow is formulated by developing a novel variational principle,
where the velocity profile is assumed to be monotonic and analytic. It is shown
that unstable eigenvalues of Rayleigh's equation (which is a non-selfadjoint
eigenvalue problem) can be associated with positive eigenvalues of a certain
selfadjoint operator. The stability is therefore determined by maximizing a
quadratic form, which is theoretically and numerically more tractable than
directly solving Rayleigh's equation. This variational stability criterion is
based on the understandings of Krein signature for continuous spectrum and is
applicable to other stability problems of infinite-dimensional Hamiltonian
systems.


title: On $p$-adic differential equations on semistable varieties II

abstract:
  This paper is a complement to the paper "On $p$-adic differential equations
on semistable varieties" written by V. Di Proietto. Given an open variety over
a DVR with semistable reduction, the author constructed in that paper a fully
faithful algebraization functor from the category of certain log overconvergent
isocrystals on the special fiber to the category of modules with regular
integrable connection on the generic fiber. In this paper, we prove that, with
convenable hypothesis, this functor is a tensor functor whose essential image
is closed under extensions and subquotients. As a consequence, we can find
suitable Tannakian subcategories of log overconvergent isocrystals and of
modules with regular integrable connection on which the algebraization functor
is an equivalence of Tannakian categories.


title: Ideals of $A(G)$ and bimodules over maximal abelian selfadjoint algebras

abstract:
  This paper is concerned with weak* closed masa-bimodules generated by
A(G)-invariant subspaces of VN(G). An annihilator formula is established, which
is used to characterise the weak* closed subspaces of B(L^2(G)) which are
invariant under both Schur multipliers and a canonical action of M(G) on
B(L^2(G)) via completely bounded maps. We study the special cases of extremal
ideals with a given null set and, for a large class of groups, we establish a
link between relative spectral synthesis and relative operator synthesis.


title: Nonparametric specification for non-stationary time series regression

abstract:
  We investigate the behavior of the Generalized Likelihood Ratio Test (GLRT)
(Fan, Zhang and Zhang [Ann. Statist. 29 (2001) 153-193]) for time varying
coefficient models where the regressors and errors are non-stationary time
series and can be cross correlated. It is found that the GLRT retains the
minimax rate of local alternative detection under weak dependence and
non-stationarity. However, in general, the Wilks phenomenon as well as the
classic residual bootstrap are sensitive to either conditional
heteroscedasticity of the errors, non-stationarity or temporal dependence. An
averaged test is suggested to alleviate the sensitivity of the test to the
choice of bandwidth and is shown to be more powerful than tests based on a
single bandwidth. An alternative wild bootstrap method is proposed and shown to
be consistent when making inference of time varying coefficient models for
non-stationary time series.


title:
Measuring mean densities of delta Scuti stars with asteroseismology.
  Theoretical properties of large separations using TOUCAN

abstract:
  We aim at studying the theoretical properties of the regular spacings found
in the oscillation spectra of delta Scuti stars. We performed a multi-variable
analysis covering a wide range of stellar structure and seismic properties and
model parameters representative of intermediate-mass, main sequence stars. The
work-flow is entirely done using a new Virtual Observatory tool: TOUCAN (the VO
gateway for asteroseismic models), which is presented in this paper. A linear
relation between the large separation and the mean density is predicted to be
found in the low frequency frequency domain (i.e. radial orders spanning from 1
to 8, approximately) of the main-sequence, delta Scuti stars' oscillation
spectrum. We found that such a linear behavior stands whatever the mass,
metallicity, mixing length, and overshooting parameters considered in this
work. The intrinsic error of the method is discussed. This includes the
uncertainty in the large separation determination and the role of rotation. The
validity of the relation found is only guaranteed for stars rotating up to 40
percent of their break-up velocity. Finally, we applied the diagnostic method
presented in this work to five stars for which regular patterns have been
found. Our estimates for the mean density and the frequency of the fundamental
radial mode match with those given in the literature within a 20 percent of
deviation. Asteroseismology has thus revealed an independent direct measure of
the average density of delta Scuti stars, analogous to that of the Sun. This
places tight constraints on the mode identification and hence on the stellar
internal structure and dynamics, and allows a determination the radius of
planets orbiting around delta Scuti stars with unprecedented precision. This
opens the way for studying the evolution of regular patterns in pulsating
stars, and its relation with stellar structure and evolution.


title:
Acoustic instability in the neutral precursor region of collisionless
  shocks propagating into partially ionized plasmas

abstract:
  Recent studies about collisionless shocks in partially ionized plasmas showed
that some of neutral particles leak into the shock upstream region from the
downstream region. In this paper, we perform a linear analysis and show that
acoustic waves are unstable in the neutral precursor region. The acoustic
instability amplifies fluctuations of magnetic field and density in the
upstream region. The fluctuations are indispensable for the diffusive shock
acceleration and could be important for the downstream turbulence.


title: The brighter-fatter effect and pixel correlations in CCD sensors

abstract:
  We present evidence that spots imaged using astronomical CCDs do not exactly
scale with flux: bright spots tend to be broader than faint ones, using the
same illumination pattern. We measure that the linear size of spots or stars,
of typical size 3 to 4 pixels FWHM, increase linearly with their flux by up to
$2\%$ over the full CCD dynamic range. This brighter-fatter effect affects both
deep-depleted and thinned CCD sensors. We propose that this effect is a direct
consequence of the distortions of the drift electric field sourced by charges
accumulated within the CCD during the exposure and experienced by forthcoming
light-induced charges in the same exposure. The pixel boundaries then become
slightly dynamical: overfilled pixels become increasingly smaller than their
neighbors, so that bright star sizes, measured in number of pixels, appear
larger than those of faint stars. This interpretation of the brighter-fatter
effect implies that pixels in flat-fields should exhibit statistical
correlations, sourced by Poisson fluctuations, that we indeed directly detect.
We propose to use the measured correlations in flat-fields to derive how pixel
boundaries shift under the influence of a given charge pattern, which allows us
to quantitatively predict how star shapes evolve with flux. This physical model
of the brighter-fatter effect also explains the commonly observed phenomenon
that the spatial variance of CCD flat-fields increases less rapidly than their
average.


title: Baryon and chiral symmetry breaking

abstract:
  We briefly review the generalized Skyrmion model for the baryon recently
suggested by us. It takes into account the tower of vector and axial mesons as
well as the chiral symmetry breaking. The generalized Skyrmion model provides
the qualitative explanation of the Ioffe's formula for the baryon mass.


title: Representations of affine superalgebras and mock theta functions II

abstract:
  We show that the normalized supercharacters of principal admissible modules,
associated to each integrable atypical module over the affine Lie superalgebra
$\widehat{sl}_{2|1}$ can be modified, using Zwegers' real analytic corrections,
to form an $SL_2(\mathbf{Z})$-invariant family of functions. Using a variation
of Zwegers' correction, we obtain a similar result for $\widehat{osp}_{3|2}$.
Applying the quantum Hamiltonian reduction, this leads to new families of
positive energy modules over the $N=2$ (resp. $N=3$) superconformal algebras
with central charge $c=3 (1-\frac{2m+2}{M})$, where $m \in \mathbf{Z}_{\geq 0},
M \in \mathbf{Z}_{\geq 2}$, gcd$(2m+2,M)=1$ if $m>0$ (resp.
$c=-3\frac{2m+1}{M}$, where $m \in \mathbf{Z}_{\geq 0}, M \in \mathbf{Z}_{\geq
2}$ gcd$(4m +2, M) =1)$, whose modified supercharacters form an
$SL_2(\mathbf{Z})$-invariant family of functions.


title:
Forgetting the Words but Remembering the Meaning: Modeling Forgetting in
  a Verbal and Semantic Tag Recommender

abstract:
  We assume that recommender systems are more successful, when they are based
on a thorough understanding of how people process information. In the current
paper we test this assumption in the context of social tagging systems.
Cognitive research on how people assign tags has shown that they draw on two
interconnected levels of knowledge in their memory: on a conceptual level of
semantic fields or topics, and on a lexical level that turns patterns on the
semantic level into words. Another strand of tagging research reveals a strong
impact of time dependent forgetting on users' tag choices, such that recently
used tags have a higher probability being reused than "older" tags. In this
paper, we align both strands by implementing a computational theory of human
memory that integrates the two-level conception and the process of forgetting
in form of a tag recommender and test it in three large-scale social tagging
datasets (drawn from BibSonomy, CiteULike and Flickr).
  As expected, our results reveal a selective effect of time: forgetting is
much more pronounced on the lexical level of tags. Second, an extensive
evaluation based on this observation shows that a tag recommender
interconnecting both levels and integrating time dependent forgetting on the
lexical level results in high accuracy predictions and outperforms other
well-established algorithms, such as Collaborative Filtering, Pairwise
Interaction Tensor Factorization, FolkRank and two alternative time dependent
approaches. We conclude that tag recommenders can benefit from going beyond the
manifest level of word co-occurrences, and from including forgetting processes
on the lexical level.


title:
Stability and Performance Issues of a Relay Assisted Multiple Access
  Scheme with MPR Capabilities

abstract:
  In this work, we study the impact of a relay node to a network with a finite
number of users-sources and a destination node. We assume that the users have
saturated queues and the relay node does not have packets of its own; we have
random access of the medium and the time is slotted. The relay node stores a
source packet that it receives successfully in its queue when the transmission
to the destination node has failed. The relay and the destination nodes have
multi-packet reception capabilities. We obtain analytical equations for the
characteristics of the relay's queue such as average queue length, stability
conditions etc. We also study the throughput per user and the aggregate
throughput for the network.


title:
Adsorption of small aromatic molecules on gold: a DFT localized basis
  set study including van der Waals effects

abstract:
  We compare the density functional theory (DFT) results on the adsorption of
small aromatic molecules (benzene, pyridine and thiophene) on gold surfaces
obtained by using three types of van der Waals exchange-correlation functionals
and localized basis set calculations. We show that the value of the molecule
surface binding energy depends on the interplay between the BSSE effect and the
tendency of the exchange-correlation functionals to overestimate both the
molecule-surface as well as the gold-gold distances within the relaxed systems.
Consequently, we find that by using different types of LCAO basis sets or
geometric models for the adsorption of the molecules on the surface, the
binding energy can vary up to 100 %. A critical analysis of the physical
parameters resulting from the calculations is presented for each
exchange-correlation functional.


title: Some applications of the chromatic polynomials

abstract:
  The chromatic polynomials are studied by several authors and have important
applications in different frameworks, specially, in graph theory and
enumerative combinatorics. The aim of this work is to establish some properties
of the coefficients of the chromatic polynomial of a graph. Three applications
on restricted Stirling numbers of the second kind are given.


title: Study of baryonic decays of B mesons at $BABAR$

abstract:
  We report on recent $BABAR$ analyses of the baryonic $B$ decays
$\bar{B}^{0}\to\Lambda_{\rm c}^{+}\bar{p}\pi^{+}\pi^{-}$, $B^{-}\to\Sigma_{\rm
c}^{++}\bar{p}\pi^{-}\pi^{-}$, $\bar{B}^{0}\to\Lambda_{\rm
c}^{+}\bar{p}p\bar{p}$ and $\bar{B}^{0}\to D^{0}\Lambda\bar{\Lambda}$. The used
data sample contains $471\times10^{6}\,B\bar{B}$ pairs that were generated in
the process $e^{+}e^{-}\to\Upsilon(4S)\to B\bar{B}$ and collected with the
$BABAR$ detector at the PEP-II storage ring at SLAC. We find ${\cal
B}(\bar{B}^{0}\to\Lambda_{\rm c}^{+}\bar{p}\pi^{+}\pi^{-}) = (12.3\pm0.5_{\rm
stat}\pm0.7_{\rm syst}\pm3.2_{\rm\Lambda_{\rm c}})\times10^{-3}$, ${\cal
B}(B^{-}\to\Sigma_{\rm c}^{++}\bar{p}\pi^{-}\pi^{-}) = (2.98\pm0.16_{\rm
stat}\pm0.15_{\rm syst}\pm0.77_{\rm\Lambda_{\rm c}})\times10^{-3}$, where the
last uncertainty is due to ${\cal B}(\Lambda_{\rm c}^{+}\to p K^{-}\pi^{+})$,
respectively. For the decay $\bar{B}^{0}\to\Lambda_{\rm c}^{+}\bar{p}p\bar{p}$
we see no events and set an upper limit ${\cal B}(\bar{B}^{0}\to\Lambda_{\rm
c}^{+}\bar{p}p\bar{p})\times \frac{{\cal B}(\Lambda_{\rm c}^{+}\to p
K^{-}\pi^{+})}{0.050} < 2.8\times10^{-6}$ at $90\,\%$ CL, where we have
normalized ${\cal B}(\Lambda_{\rm c}^{+}\to p K^{-}\pi^{+})$ to the world
average value. There is evidence for the decay $\bar{B}^{0}\to
D^{0}\Lambda\bar{\Lambda}$ and we measure ${\cal B}(\bar{B}^{0}\to
D^{0}\Lambda\bar{\Lambda}) = (9.8^{+2.9}_{-2.6}\,_{\rm stat}\pm1.9_{\rm
syst})\times10^{-6}$ corresponding to a significance of $3.4\sigma$.


title: More on the Abrikosov Strings with Non-Abelian Moduli

abstract:
  We continue explorations of deformed Abrikosov-Nielsen-Olesen (ANO) strings,
with non-Abelian moduli on the world sheet. In a simple model with an extra
field we find classically stable ANO and non-Abelian strings. The tension of
the latter is a few percent lower than the tension of the ANO string. Then we
calculate the interpolating field configuration. Once the kink mass $M_k$ and
the difference of tensions $\Delta T$ are found we calculate the decay rate of
the ANO string with a higher tension ("false vacuum") into the non-Abelian
string with the lower tension ("genuine vacuum") through the "bubble" formation
in the quasiclassical approximation.


title:
Impact of graphene polycrystallinity on the performance of graphene
  field-effect transistors

abstract:
  We have used a multi-scale physics-based model to predict how the grain size
and different grain boundary morphologies of polycrystalline graphene will
impact the performance metrics of graphene field-effect transistors. We show
that polycrystallinity has a negative impact on the transconductance, which
translates to a severe degradation of the maximum and cutoff frequencies. On
the other hand, polycrystallinity has a positive impact on current saturation,
and a negligible effect on the intrinsic gain. These results reveal the complex
role played by graphene grain boundaries, and can be used to guide the further
development and optimization of graphene-based electronic devices.


title:
Dependence of geosynchronous relativistic electron enhancements on
  geomagnetic parameters

abstract:
  Relativistic electron fluxes observed in geosynchronous orbit by GOES-8 in
1997 to 2000 were considered as a complex function of geomagnetic indices PC,
Kp, and Dst as well as parameters of the magnetosphere size, subsolar Rs and
terminator Rf magnetopause distances. A geosynchronous relativistic electron
enhancement (GREE) is determined as daily maximal electron flux exceeding the
upper root mean square deviation (RMSD) threshold of about 1500 (cm2s sr)-1.
Comparison analysis of the GREE dynamics and geomagnetic conditions on the
rising phase of current solar cycle revealed suppression of the relativistic
electron enhancements by substantially increased strong geomagnetic activity in
the solar maximum. Statistical consideration of a relationship between the
GREEs and the geomagnetic parameters showed that the most important parameters
controlling the geosynchronous relativistic electron enhancements were 4-day
averaged Kp index, PC index and magnetopause termination distance Rf delayed
respectively on 3 and 14 hours. Relatively high averaging time for Kp was
explained by cumulative effect of substorm energy release in a gradual
mechanism accelerating the relativistic electrons in the magnetosphere. Very
short time delay for PC index was interpreted as intensification of a fast
acceleration mechanism producing the GREEs during severe geomagnetic storms.
Substantial increase of the PC index (PC>5) was founded as a sufficient
condition for GREE occurrence. The fast response of the geosynchronous
relativistic electron fluxes on the magnetosphere compression was explained by
drift losses of the energetic electrons at the magnetopause which approaches
the Earth during geomagnetic storms.


title:
Water Eminence Scrutinizing Scheme Based On Zigbee and Wireless Antenna
  Expertise - A Study

abstract:
  Wireless Sensor Network is the essential structure of a water eminence
monitoring by means of wireless sensor network technology To scrutinize water
quality greater than different sites as a synchronized application an estimable
system structural design constituted by spread sensor nodes and a base station
is suggested The nodes and base stations are linked using WSN technology like
Zigbee Base stations are related via Ethernet. Design and execution of a
prototype using WSN technology are the exigent work. Data are identified by
means of dissimilar sensors at the node plane to compute the parameters like
turbidity and oxygen quantity is transmitted via WSN to the support station
Information unruffled from the distant location is capable of displayed in
diagram setup as well as it is able to be calculated using dissimilar
replication tools at the supporting station. The recent methods have benefits
such as null amount carbon emission low power utilization more stretchy to put
together at distant locations.


title:
Critical Endpoint and Inverse Magnetic Catalysis for Finite Temperature
  and Density Quark Matter in a Magnetic Background

abstract:
  In this article we study chiral symmetry breaking for quark matter in a
magnetic background, $\bm B$, at finite temperature and quark chemical
potential, $\mu$, making use of the Ginzburg-Landau effective action formalism.
As a microscopic model to compute the effective action we use the renormalized
quark-meson model. Our main goal is to study the evolution of the critical
endpoint, ${\cal CP}$, as a function of the magnetic field strength, and
investigate on the realization of inverse magnetic catalysis at finite chemical
potential. We find that the phase transition at zero chemical potential is
always of the second order; for small and intermediate values of $\bm B$,
${\cal CP}$ moves towards small $\mu$, while for larger $\bm B$ it moves
towards moderately larger values of $\mu$. Our results are in agreement with
the inverse magnetic catalysis scenario at finite chemical potential and not
too large values of the magnetic field, while at larger $\bm B$ direct magnetic
catalysis sets in.


title:
Noise resistance of violation of local causality for pure three-qutrit
  entangled states

abstract:
  Bell's Theorem started with two qubits, spins $1/2$. It is a no-go statement
on classical (local causal) models of quantum correlations. Only after 25
years, it turned out that for three qubits the situation is even more mind
boggling. General statements concerning higher dimensional systems, qutrits
etc., started to appear even later, once the spin (higher than $1/2$) picture
was replaced by a more broad one, allowing all possible observables. This work
is continuation of the Gdansk effort to take advantage of the fact that Bell
Theorem can be put in form of a linear programming problem, which in turn can
be translated into a computer code. Our results are numerical and classify the
strength of non-classicality of various families of three-qutrit states, as
measured by resistance to noise. This is a previously uncharted territory. The
results may be helpful in suggesting which three-qutrit states are handy for
applications in quantum information protocols. One of the surprises is that the
W state turns out to have a stronger non-classicality than the GHZ state.


title:
Multilevel recording in Bi-deficient Pt/BFO/SRO heterostructures based
  on ferroelectric resistive switching targeting high-density information
  storage in nonvolatile memories

abstract:
  We demonstrate the feasibility of multilevel recording in
Pt/Bi(1-d)FeO3/SrRuO3 capacitors using the ferroelectric resistive switching
phenomenon exhibited by the Pt/Bi(1-d)FeO3 interface. A tunable population of
up and down ferroelectric domains able to modulate the Schottky barrier height
at the Pt/Bi(1-d)FeO3 interface can be achieved by means of either a collection
of SET/RESET voltages or current compliances. This programming scheme gives
rise to well defined resistance states, which form the basis for a multilevel
storage nonvolatile memory.


title: Exact Free Energies of Statistical Systems on Random Networks

abstract:
  Statistical systems on random networks can be formulated in terms of
partition functions expressed with integrals by regarding Feynman diagrams as
random networks. We consider the cases of random networks with bounded but
generic degrees of vertices, and show that the free energies can be exactly
evaluated in the thermodynamic limit by the Laplace method, and that the exact
expressions can in principle be obtained by solving polynomial equations for
mean fields. As demonstrations, we apply our method to the ferromagnetic Ising
models on random networks. The free energy of the ferromagnetic Ising model on
random networks with trivalent vertices is shown to exactly reproduce that of
the ferromagnetic Ising model on the Bethe lattice. We also consider the cases
with heterogeneity with mixtures of orders of vertices, and derive the known
formula of the Curie temperature.


title:
Electromagnetic transition form factors of the Roper resonance in
  effective field theory

abstract:
  We analyze the form factors of the electromagnetic nucleon-to-Roper-resonance
transition in the framework of low-energy effective field theory. A systematic
power-counting procedure is generated by applying the complex-mass scheme.
Within this power counting we calculate the form factors to
next-to-next-to-leading order and fit the results to empirical data.


title: Asymmetries in Asymptotic 3-fold Properties of Ergodic Actions

abstract:
  We present:
  1) a mixing $Z ^ 2$-action with the following asymmetry of multiple mixing
property: for some commuting measure-preserving transformations $S$, $T$ and a
sequence $n_j$ $$ \lim_{j\to \infty}\mu(A\bigcap S^{-n_j}A\bigcap
T^{-n_j}A)=\mu(A)^3$$ for all measurable sets $A$, but there is $A_0$,
$\mu(A_0)=\frac 1 2$, such that $$ \lim_{j\to \infty}\mu(A_0\bigcap
S^{n_j}A_0\bigcap T^{n_j}A_0)=0;$$
  2) $Z $-actions with the asymmetry of the partial multiple mixing and the
partial multiple rigidity: $$ \lim_{j\to \infty}\mu(A\bigcap T^{k_j}A\bigcap
T^{m_j}A)= \frac23 \mu(A)^3+\frac13\mu(A),$$ $$ \lim_{j\to \infty}\mu(A\bigcap
T^{-k_j}A\bigcap T^{-m_j}A)= \mu(A)^2;$$
  3) infinite transformations $T$ such that for all $A$, $\mu(A)<\infty$,
$$\lim_{j\to \infty}\mu(A\bigcap T^{k_j}A\bigcap T^{m_j}A)= \frac13\mu(A)$$ and
$$\lim_{j\to \infty}\mu(A\bigcap T^{-k_j}A\bigcap T^{-m_j}A)=0.$$


title:
Efficient semiparametric estimation in generalized partially linear
  additive models for longitudinal/clustered data

abstract:
  We consider efficient estimation of the Euclidean parameters in a generalized
partially linear additive models for longitudinal/clustered data when multiple
covariates need to be modeled nonparametrically, and propose an estimation
procedure based on a spline approximation of the nonparametric part of the
model and the generalized estimating equations (GEE). Although the model in
consideration is natural and useful in many practical applications, the
literature on this model is very limited because of challenges in dealing with
dependent data for nonparametric additive models. We show that the proposed
estimators are consistent and asymptotically normal even if the covariance
structure is misspecified. An explicit consistent estimate of the asymptotic
variance is also provided. Moreover, we derive the semiparametric efficiency
score and information bound under general moment conditions. By showing that
our estimators achieve the semiparametric information bound, we effectively
establish their efficiency in a stronger sense than what is typically
considered for GEE. The derivation of our asymptotic results relies heavily on
the empirical processes tools that we develop for the longitudinal/clustered
data. Numerical results are used to illustrate the finite sample performance of
the proposed estimators.


title: Adaptive Boundary Element Methods

abstract:
  This paper reviews the state of the art and discusses very recent
mathematical developments in the field of adaptive boundary element methods.
This includes an overview of available a posteriori error estimates as well as
a state-of-the-art formulation of convergence and quasi-optimality of adaptive
mesh-refining algorithms.


title:
Exact Solutions of Nonlinear Schrodinger's Equation with Dual Power-Law
  Nonlinearity by Extended Trial Equation Method

abstract:
  In this paper, we acquire the soliton solutions of the nonlinear
Schrodinger's equation with dual power-law nonlinearity. Primiraly, we use the
extended trial equation method to find exact solutions of this equation. Then,
we attain some exact solutions including soliton solutions, rational and
elliptic function solutions of this equation by using the extended trial
equation method.


title: Modular Complexity Analysis for Term Rewriting

abstract:
  All current investigations to analyze the derivational complexity of term
rewrite systems are based on a single termination method, possibly preceded by
transformations. However, the exclusive use of direct criteria is problematic
due to their restricted power. To overcome this limitation the article
introduces a modular framework which allows to infer (polynomial) upper bounds
on the complexity of term rewrite systems by combining different criteria.
Since the fundamental idea is based on relative rewriting, we study how matrix
interpretations and match-bounds can be used and extended to measure complexity
for relative rewriting, respectively. The modular framework is proved strictly
more powerful than the conventional setting. Furthermore, the results have been
implemented and experiments show significant gains in power.


title: On an identity for zeros of Bessel functions

abstract:
  In this paper our aim is to present an elementary proof of an identity of
Calogero concerning the zeros of Bessel functions of the first kind. Moreover,
by using our elementary approach we present a new identity for the zeros of
Bessel functions of the first kind, which in particular reduces to some other
new identities. We also show that our method can be applied for the zeros of
other special functions, like Struve functions of the first kind, and modified
Bessel functions of the second kind.


title:
Deterministic and Stochastic Differential Equations in Hilbert Spaces
  Involving Multivalued Maximal Monotone Operators

abstract:
  This work deals with a Skorokhod problem driven by a maximal operator:
\begin{aligned} &du(t)+Au(t)(dt)\ni f(t)dt+dM(t), \; 0<t<T,\\ &u(0)=u_{0},
\end{aligned} which is a multivalued deterministic differential equation with a
singular inputs $dM(t)$, where $t\rightarrow M(t)$ is a continuous function.
  The existence and uniqueness result is used to study an It\^{o}'s stochastic
differential equation \begin{aligned} &du(t)+Au(t)(dt)\ni
f(t,u(t))dt+B(t,u(t))dW(t),\; 0<t<T,\\ &u(0)=u_{0}, \end{aligned} in a real
Hilbert space $H$, where $A$ is a multivalued ($\alpha$-)maximal monotone
operator on $H$, and $f(t,u)$ and $B(t,u)$ are Lipschitz continuous with
respect to $u$. Some asymptotic properties in the stochastic case are also
found.