The linear σ model with broken U3×U3 is compared with data on the lightest scalar and pseudoscalar mesons. When 5 of the 6 parameters are fixed by the pseudoscalar masses and decay constants one finds that, already at the tree level, a reasonable description for the 4 scalar masses, mixing and up to 8 trilinear couplings of lightest scalars, taken as a0(980), f0(980), σ(≈ 500) and K 0 (1430). T...

This paper discusses a system for automatic clustering of urban-legend texts. Urban legend (UL) is a short story set in the present day, believed by its tellers to be true and spreading spontaneously from person to person. A corpus of Polish UL texts was collected from message boards and blogs. Each text was manually assigned to one story type. The aim of the presented system is to reconstruct ...

In this paper, we investigate unmanned aerial vehicle (UAV) assisted communication systems that require quasi-balanced data rates in uplink (UL) and downlink (DL), as well users’ heterogeneous traffic. To the best of our knowledge, is first work to explicitly joint UL-DL optimization for UAV under requirements. A hybrid-mode multiple access (HMMA) scheme proposed toward traffic, where non-ortho...

X iv :h ep -p h/ 94 07 25 5v 1 8 J ul 1 99 4 UWThPh-1994-25 AUE-04-94 February 1, 2008 Maximal CP violation in the Higgs Sector and its Effect on the ρ Parameter Girish C. JOSHI 1 Masahisa MATSUDA 2 and Morimitsu TANIMOTO 3 (a) Department of Physics, University of Melbourne Parkville, Victoria 3052, AUSTRALIA (b) Department of Physics and Astronomy, Aichi University of Education Kariya, Aichi 4...

Let S be a subring of the ring R. We investigate the question of whether S ∩ U(R) = U(S) holds for the units. In many situations our answer is positive. There is a special emphasis on the case when R is a full matrix ring and S is a structural subring of R defined by a reflexive and transitive relation.

This paper is a review of recent and classical results on integrable geodesic flows on Riemannian manifolds and topological obstructions to integrability. We also discuss some open problems.

Multidimensional contractions of irreducible representations of the Cayley–Klein orthogonal algebras in Gel'fand–Zetlin basis are considered. Contracted over different parameters, algebras can turn out to be iso-morphic. In this case method of transitions describes the same reducible representations in different basises, say discrete and continuons ones.

the present paper compares nature description in imra’ ul-qais and ibn hamdis poetries with the aim to analyze the nature elements in their poetries – one in dark ages era and the other in andalusian. the main question is that which beautiful scenery has been described according to their different living eras. the assumption which helps us to find the answer to this question is that imra’ ul-qa...

Work-related musculoskeletal disorders of the upper limb (WRMSDs-UL) account for over two-thirds of all occupational disorders recognized in France. This broad term encompasses a vast array of disorders whose development is facilitated by environmental factors present at the workplace. Numerous epidemiological studies have established the key role of occupational activities in the genesis of WR...