An exploration of the need for and cost of selected trade facilitation measures in Asia-Pacific in the context of the WTO negotiations

This chapter is based on the case studies of Bangladesh, China, India, Indoesnia and NepalTrade facilitation, Bangladesh, China, India, Indonesia, Nepal, Asia Pacific

An exploration of the need for and cost of selected trade facilitation measures in Asia-Pacific in the context of the WTO negotiations

This chapter concludes case studies on trade facilitation measures implementation in Bangladesh, China, Indonesia, India, and Nepaltrade facilitation measures, Bangladesh, China, Indoesnia, India, Nepal

An exploration of the need for and cost of selected trade facilitation measures in Asia-Pacific in the context of the WTO negotiations

limitation, Asia Pacific, trade facilitation, WTO agreement

Review of: Dangerous Places: Health, Safety, and Archaeology (David A. Poirer & Kenneth L. Feder eds.)

Review of the book: Dangerous Places: Health, Safety, and Archaeology (David A. Poirier& Kenneth L. Feder eds., Bergin & Garvey, Greenwood Publishing Group, Inc. 2001). Introduction, bibliographic references, index. ISBN0-89789-632-7 [264 pp. $65.00. Cloth, 88 Post Road West, P.O. Box5007, Westport, CT 06881-5007

Eisenhart lift for higher derivative systems

The Eisenhart lift provides an elegant geometric description of a dynamical system of second order in terms of null geodesics of the Brinkmann-type metric. In this work, we attempt to generalize the Eisenhart method so as to encompass higher derivative models. The analysis relies upon Ostrogradsky's Hamiltonian. A consistent geometric description seems feasible only for a particular class of potentials. The scheme is exemplified by the Pais-Uhlenbeck oscillator.Comment: V2: 12 pages, minor improvements, references added; the version to appear in PL

Galilean Isometries

We introduce three nested Lie algebras of infinitesimal `isometries' of a Galilei space-time structure which play the r\^ole of the algebra of Killing vector fields of a relativistic Lorentz space-time. Non trivial extensions of these Lie algebras arise naturally from the consideration of Newton-Cartan-Bargmann automorphisms.Comment: Plain TeX, 8 page

Deduction as Reduction

Deduction systems and graph rewriting systems are compared within a common categorical framework. This leads to an improved deduction method in diagrammatic logics

Polarized Spinoptics and Symplectic Physics

We recall the groundwork of spinoptics based on the coadjoint orbits, of given color and spin, of the group of isometries of Euclidean three-space; this model has originally been put forward by Souriau in his treatise "Structure des Syst\'emes Dynamiques", whose manuscript was initially entitled "Physique symplectique". We then set up a model of polarized spinoptics, namely an extension of geometrical optics accounting for elliptically polarized light rays in terms of a certain fibre bundle associated with the bundle of Euclidean frames of a given Riemannian three-manifold. The characteristic foliation of a natural presymplectic two-form introduced on this bundle via the Ansatz of minimal coupling is determined, yielding a set of differential equations governing the trajectory of light, as well as the evolution of polarization in this Riemannian manifold. Those equations, when specialized to the Fermat metric (for a slowly varying refractive index), enable us to recover, and justify, a set of differential equations earlier proposed in the literature, in another context, namely in terms of a semi-classical limit of wave optics. They feature a specific anomalous velocity responsible for the recently observed Spin Hall Effect of Light, namely a tiny spatial deflection of polarized light rays, transversally to the gradient of the refractive index. Our model, constructed from the start on purely geometric grounds, turns out to encode automatically the Berry as well as the Pancharatnam connections that usually appear in the framework of wave optics.Comment: 27 pages, 3 figure