5,200 research outputs found
From Class Solidarity to Revolution: The Radicalization of Arsenal Workers in the Late Ottoman Empire
This article introduces a bottom-up perspective to the history of the Revolution of 1908 in the Ottoman Empire by focusing on the experiences of workers in the Imperial Naval Arsenal (Tersane-i Amire) in Istanbul. Drawing mainly on primary documents, the article explores, from a class-formation perspective, the struggles and relations of Arsenal workers from the second half of the nineteenth century until the revolution. The Arsenal workers’ involvement in the revolution was rooted in their class solidarity, which was revealed in a number of ways throughout this period. The workers’ immediate embrace of the revolution was spurred by their radicalization against the state; such radicalization stemmed from the state’s failure to solve the workers’ persistent economic problems, and its attempts to discharge them and replace them with military labor. The case of the Arsenal workers thus points to the role of working-class discontent in the history of the revolution, a dimension that has thus far been only minimally addressed in Ottoman historiography
Halanay type inequalities on time scales with applications
This paper aims to introduce Halanay type inequalities on time scales. By
means of these inequalities we derive new global stability conditions for
nonlinear dynamic equations on time scales. Giving several examples we show
that beside generalization and extension to q-difference case, our results also
provide improvements for the existing theory regarding differential and
difference inequalites, which are the most important particular cases of
dynamic inequalities on time scales
Gauge coupling unification and light Exotica in String Theory
In this letter we consider the consequences for the LHC of light vector-like
exotica with fractional electric charge. It is shown that such states are found
in orbifold constructions of the heterotic string. Moreover, these exotica are
consistent with gauge coupling unification at one loop, even though they do not
come in complete multiplets of SU(5).Comment: 5 pages, no figure
A Minimal Model of Neutrino Flavor
Models of neutrino mass which attempt to describe the observed lepton mixing
pattern are typically based on discrete family symmetries with a non-Abelian
and one or more Abelian factors. The latter so-called shaping symmetries are
imposed in order to yield a realistic phenomenology by forbidding unwanted
operators. Here we propose a supersymmetric model of neutrino flavor which is
based on the group T7 and does not require extra Z_N or U(1) factors, which
makes it the smallest realistic family symmetry that has been considered so
far. At leading order, the model predicts tribimaximal mixing which arises
completely accidentally from a combination of the T7 Clebsch-Gordan
coefficients and suitable flavon alignments. Next-to-leading order (NLO)
operators break the simple tribimaximal structure and render the model
compatible with the recent results of the Daya Bay and Reno collaborations
which have measured a reactor angle of around 9 degrees. Problematic NLO
deviations of the other two mixing angles can be controlled in an ultraviolet
completion of the model
Reconciling Grand Unification with Strings by Anisotropic Compactifications
We analyze gauge coupling unification in the context of heterotic strings on
anisotropic orbifolds. This construction is very much analogous to effective 5
dimensional orbifold GUT field theories. Our analysis assumes three fundamental
scales, the string scale, \mstring, a compactification scale, \mc, and a
mass scale for some of the vector-like exotics, \mex; the other exotics are
assumed to get mass at \mstring. In the particular models analyzed, we show
that gauge coupling unification is not possible with \mex = \mc and in fact
we require \mex \ll \mc \sim 3 \times 10^{16} GeV. We find that about 10% of
the parameter space has a proton lifetime (from dimension 6 gauge exchange)
. The
other 80% of the parameter space gives proton lifetimes below Super-K bounds.
The next generation of proton decay experiments should be sensitive to the
remaining parameter space.Comment: 36 pages and 5 figures, contains some new references and additional
paragraph in conclusio
The Topological Directional Entropy of Z^2-actions Generated by Linear Cellular Automata
In this paper we study the topological and metric directional entropy of
-actions by generated additive cellular automata (CA hereafter),
defined by a local rule , , , i.e. the
maps
which are given by , , , and , over the ring , and the shift map acting on compact metric space
, where is a positive integer. Our
main aim is to give an algorithm for computing the topological directional
entropy of the -actions generated by the additive CA and the
shift map. Thus, we ask to give a closed formula for the topological
directional entropy of -action generated by the pair in the direction that can be efficiently and rightly
computed by means of the coefficients of the local rule f as similar to [Theor.
Comput. Sci. 290 (2003) 1629-1646]. We generalize the results obtained by Ak\i
n [The topological entropy of invertible cellular automata, J. Comput. Appl.
Math. 213 (2) (2008) 501-508] to the topological entropy of any invertible
linear CA.Comment: 9 pages. submitte
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