In directional statistics, the von Mises distribution is a key element in analysis of circular data. While there general agreement regarding estimation its location parameter μ, several methods have been proposed to estimate concentration κ. We here provide thorough evaluation behavior 12 such estimators for datasets size N ranging from 2 8192 generated with κ 0 100. detailed results as well gl...

Kinney et al [PPL 1,(1994)] have investigated plasma filamentary structure dynamics. More recently, Wilkin et al [Phys Rev Lett 99:134501,(2007)] have shown that kinetic energy spectrum of magnetic structures in small-scale dynamos, are predominantly fila-mentary. Kirilov et al [PRE (2009)] have shown that use of the boundary values of the mean-field isotropic helical turbulent α 2-dynamo, coul...

where φ is the angle between the lepton and hadron planes in the lepton center of mass frame (see Fig. 3 of Ref.1). In the parton model (order αs) quark-antiquark annihilation yields λ = 1, μ = ν = 0. The leading order (LO) perturbative QCD corrections (order αs) lead to μ 6= 0, ν 6= 0 and λ 6= 1, such that the so-called Lam-Tung relation 1 − λ − 2ν = 0 holds. Beyond LO, small deviations from t...

Consider the class of C-smooth SL(2,R) valued cocycles, based on the rotation flow on the two torus with irrational rotation number α. We show that in this class, (i) cocycles with positive Lyapunov exponents are dense and (ii) cocycles that are either uniformly hyperbolic or proximal are generic, if α satisfies the following Liouville type condition: ∣ α− pn qn ∣ ∣ ≤ Cexp(−q n ), where C > 0 a...

In the Results section under subheading 'Scattering cancellation technique for heat diffusion waves: static regime' " For → ∞ r , κ θ (>) = − (/) T r a Q rcos 2 0 , therefore κ = − / E Q 1 0 and all the other coefficients ≠ E l 1 are zero. " should read: " For → ∞ r , κ θ (>) = − (/)  T r a Q rcos 2 0 with κ = − (−)/  Q T T L 0 2 1 the heat generated by unit surface and unit time, in contrast...

where φ is the angle between the lepton and hadron planes in the lepton center of mass frame (see Fig. 3 of Ref.1). In the parton model (order αs) quark-antiquark annihilation yields λ = 1, μ = ν = 0. The leading order (LO) perturbative QCD corrections (order αs) lead to μ 6= 0, ν 6= 0 and λ 6= 1, such that the so-called Lam-Tung relation 1 − λ − 2ν = 0 holds. Beyond LO, small deviations from t...

central to vygotsky-inspired sociocultural theory (sct) is the notion of zpd seen by sla researchers as a useful framework within which l2 teaching and learning can take place. van lier (2004) argues that the zpd could be activated in diverse proximal contexts (pcs) and is not limited to the expert-novice scenario. . this study probed whether iranian efl learners' collaborative task performance...