Mohr-hā-yī az jens-e ‘ešq, negāhī grāfīkī be mohr-hā-ye dowre-ye Qājār. Tehrān, Ketāb-e ḫoršīd, 1383/2004, 187 p., ill.

Tests of Quantum Chromodynamics in Exclusive E+e-and Ye Processes*

One of the most, important area.s of investigation in quantum chromodynamics are few-hod3, exclusive reactions initiated by electromagnetic initial states. such as e'e-i HH t+tt-> + ?H. and the two-photon processes 77-+ Hfi shown in Fig. 1. The simplicity. of the photon's couplings to the quark currents and the a.bsence of initial state hadronic interactions allows one to st,ud>. the process of...

Magnetotelluric analysis using Mohr circles

The Mohr circle, most commonly met in the analysis of mechanical stress, is used to depict magnetotelluric impedance information, taking the real and quadrature parts of magnetotelluric tensors separately. The magnetotelluric concepts of two-dimensionality, three-dimensionality, skew and anisotropy are then all given quantitative expression on a diagram, as are various magnetotelluric invariant...

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Seek and Ye Shall Find

This chapter proposes that search engines apply a verticalizing pressure on the WWW many-to-many information distribution model, forcing this to revert to a distributive model similar to that of the mass media. The argument for this starts with a critical descriptive examination of the history of search mechanisms for the Internet. Parallel to this there is a discussion of the increasing ties b...

On the modular curves YE(7)

Let E denote an elliptic curve over Q and Y E (7) the modular curve classifying the elliptic curves E over Q such that the representations of Gal(Q/Q) in the 7-torsion points of E and of E are symplectically isomorphic. In case E is given by a Weierstraß equation such that the c 4 invariant is a square, we exhibit here nontrivial points of Y E (7)(Q). From this we deduce an infinite family of c...