Ann. Phys. (Berlin) 522, No. 8, 533 – 535 (2010) / DOI 10.1002/andp.201052208 CONTENTS Full text on our homepage at www.ann-phys.org ORIGINAL PAPERS Page 536 – 554 Michael Schreiber Twenty Hirsch index variants and other indicators giving more or less preference to highly cited papers The Hirsch index or h-index is widely used to quantify the impact of an individual’s scientific research output, determining the highest number h of a scientist’s papers that received at least h citations. Several variants of the index have been proposed in order to give more or less preference to highly cited papers. The author analyses the citation records of 26 physicists discussing various suggestions, in particular A, e, f , g, h(2), hw , hT , , m, π, R, s, t, w, and maxprod. The total number of all and of all cited publications as well as the highest and the average number of citations are also compared. Advantages and disadvantages of these indices and indicators are discussed. Correlation coefficients are determined quantifying which indices and indicators yield similar and which yield more deviating rankings of the 26 datasets. For 6 datasets the determination of the indices and indicators is visualized. Page 555 – 573 Dinesh Singh and Nader Mobed Breakdown of Casimir invariance in curved space-time It is shown that the commonly accepted definition for the Casimir scalar operators of the Poincaré group does not satisfy the properties of Casimir invariance when applied to the non-inertial motion of particles while in the presence of external gravitational and electromagnetic fields, where general curvilinear co-ordinates are used to describe the momentum generators within a Fermi normal co-ordinate framework. Specific expressions of the Casimir scalar properties are presented. While the Casimir scalar for linear momentum remains Lorentz invariant in the absence of external fields, this is no longer true for the spin Casimir scalar. Potential implications are considered for the propagation of photons, gravitons, and gravitinos as described by the spin3/2 Rarita-Schwinger vector-spinor field. In particular, it is shown that noninertial motion introduces a frame-based effective mass to the spin interaction, with interesting physical consequences that are explored in detail. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 534 Page 574 – 583 Contents Tomasz Dobrowolski The studies on the motion of the sine-Gordon kink on a curved surface The numerical studies of the kink motion on a curved manifold were performed. Examples of the curved surfaces are considered in detail. Enlarging the kink width in curved regions of the surface and reduction of its speed is confirmed. Reflection of the kink front from the large curvature areas is observed. The influence of the curvature on the speed of the Vachaspati waves is also observed. Page 584 – 593 T. A. Zaleski and T. K. Kopeć Quasi-particle peak due to magnetic order in strongly correlated electron systems The authors study the electron spectral function of the antiferromagnetically ordered phase of the three dimensional Hubbard model, using recently formulated low-energy theory based on the 2D halffilled Hubbard model which describes both collective spin and charge fluctuations for arbitrary value of the Coulomb repulsion U . The model then is solved by a saddle-point approximation within the CP1 representation for the Neel field. . . . Page 594 – 600 Udo Schwingenschlögl and Cono Di Paola Electronic structure of BaFe2 As2 as obtained from DFT/ASW first-principles calculations Ab-initio calculations based on the augmented spherical wave method within density functional theory are used to study the magnetic ordering and Fermi surface of BaFe2 As2 , the parent compound of the hole-doped iron pnictide superconductors (K,Ba)Fe2 As2 , for the tetragonal I4/mmm as well as the orthorhombic F mmm structure. In comparison to full potential linear augmented plane wave calculations, significantly smaller magnetic energies are obtained. . . . © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim www.ann-phys.org Ann. Phys. (Berlin) 522, No. 8 (2010) 535 HISTORICAL ARTICLE Page 601 – 607 Walter Dittrich The eastward displacement of a freely falling body on the rotating Earth: Newton and Hooke’s debate of 1679 In this article the author tells the story of the beginning of modern theoretical physics, freed from all kinds of questionable anecdotes which have entered the scientific literature over the centuries. It all began in the seventeenth century when the mathematical theory of astronomy began to take shape. A major step in the history of modern science was taken when a few members of The Royal Society in London realized that the laws ruling the motions of heavenly bodies as manifested in Kepler’s three laws are also effective in the dynamics of Earth-bound particle motion. Everything started, not with I. Newton, but with R. Hooke. Not Newton’s falling apple (Voltaire’s invention), but a far-reaching response by R. Hooke to a letter by I. Newton, dated November 28, 1679, ignited Newton’s interest in gravity. That letter contained the famous spiral which a falling body would follow when released from a certain height above the surface of the Earth.. . . BOOK REVIEW Page 608 – 610 “DID TIME BEGIN? WILL TIME END? Maybe the Big Bang Never Occurred” by Paul H. Frampton, World Scientific, Singapore 2009, Reviewer: Friedemann Queisser, Köln Annalen der Physik is indexed in Chemical Abstracts Service/SciFinder, COMPENDEX, Current Contents®/Physical, Chemical & Earth Sciences, FIZ Karlsruhe Databases, INIS: International Nuclear Information System Database, INSPEC, Journal Citation Reports/Science Edition, Science Citation Index Expanded™, Science Citation Index® , SCOPUS, Statistical Theory & Method Abstracts, VINITI, Web of Science® , Zentralblatt MATH/Mathematics Abstracts Recognized by the European Physical Society www.ann-phys.org © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

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