16,385 research outputs found
Light flavor hadron spectra at low and search for collective phenomena in high multiplicity pp, p-Pb and Pb-Pb collisions measured with the ALICE experiment
Comprehensive results on transverse momentum distributions and their ratios
for identified light flavor hadrons (, K, p) at low and
mid-rapidity as a function of charged particle multiplicity are reported for pp
collisions at 7 TeV. Particle mass dependent hardening of the spectral shapes
in Pb-Pb collisions at 2.76 TeV were attributed to hydrodynamical flow and
quantitatively parameterized with Boltzmann-Gibbs Blast Wave fits. In this
contribution, we investigate the existence of collective phenomena in small
systems: pp, p-Pb and peripheral Pb-Pb where similar patterns are observed in
multiplicity dependent studies.Comment: Proceedings of Quark Matter 2014 conference, May 19-24, 201
Investor Protection and Share Prices: Evidence from Statutory Rules Governing Variations of Shareholders' Class Rights in Russia
This paper uses a quasi-experimental framework provided by recent changes in Russian corporate law to study the effect of investor protection on the value of shares. The legal change analyzed involves the empowerment of preferred (non-voting) shareholders to veto unfavorable changes in their class rights. Based on a novel hand-collected dataset of dual class stock companies in Russia and using the difference-in-difference estimator, the study finds a statistically and economically significant effect of improved protection of preferred shareholders on the value of their shares. The result is robust to several changes in the empirical specification.Investor protection, company law, dual class stock, class rights, Russia
Monetary Inflation Mechanism. An Empirical View
We prefer to reconsider once again our larger paper published earlier1, as we did it already for at least three of its revealed correlations: between nominal GDP and both monetary reserves and money supply (Andrei & Andrei 2014a, b) and between money multiplier and velocity (Andrei 2014), this time for something within our database (i.e. the Federal Reserves of Saint Lois State/FRED) that regards the inflation rate from nearby. Following our basic paper reference’s basics, inflation might be proper to both representative and fiat monies, but more deeply to the latter, although both monies again keep either the money supply and reserves as components. On the other hand, the same inflation is a so reach topic for theorists of all groups of thinking, e.g. there are some that identify it out of just money origins. This paper below tries to explain a monetary inflation mechanism in normal (out of crisis) environment
Odeint - Solving ordinary differential equations in C++
Many physical, biological or chemical systems are modeled by ordinary
differential equations (ODEs) and finding their solution is an every-day-task
for many scientists. Here, we introduce a new C++ library dedicated to find
numerical solutions of initial value problems of ODEs: odeint (www.odeint.com).
odeint is implemented in a highly generic way and provides extensive
interoperability at top performance. For example, due to it's modular design it
can be easily parallized with OpenMP and even runs on CUDA GPUs. Despite that,
it provides a convenient interface that allows for a simple and easy usage.Comment: 4 pages, 1 figur
Network attack detection at flow level
In this paper, we propose a new method for detecting unauthorized network
intrusions, based on a traffic flow model and Cisco NetFlow protocol
application. The method developed allows us not only to detect the most common
types of network attack (DDoS and port scanning), but also to make a list of
trespassers' IP-addresses. Therefore, this method can be applied in intrusion
detection systems, and in those systems which lock these IP-addresses
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