• LETTERS
  • General Physics
  • Gravitation and Astrophysics
  • Elementary Particles and Fields
  • Atomic, Molecular, and Optical Physics
  • Nonlinear Dynamics, Fluid Dynamics, Classical Optics, Etc.
  • Plasma and Beam Physics
  • Condensed Matter: Structure, Etc.
  • Condensed Matter: Electronic Properties, Etc.
• COMMENTS

•	Chaotic but regular posi-nega switch among coded attractors by cluster-size variation Kunihiko Kaneko pp. 219-223 [View   PDF (691 kB)  See Also: Erratum]

•	Phenomenological gravitational constraints on strings and higher-dimensional theories V. Alan Kostelecký and Stuart Samuel pp. 224-227 [View   PDF (650 kB) ]

•	Model for large transition magnetic moment of the electron neutrino K. S. Babu and R. N. Mohapatra pp. 228-231 [View   PDF (621 kB) ]

•	Light-pressure-induced line-shape asymmetry of the saturation dip in an atomic gas Rudolf Grimm and Jürgen Mlynek pp. 232-235 [View   PDF (721 kB) ]

•	Calculations for Ni-like soft x-ray lasers: Optimization for W (43.1 Å) S. Maxon, S. Dalhed, P. L. Hagelstein, R. A. London, B. J. MacGowan, M. D. Rosen, G. Charatis, and G. Busch pp. 236-239 [View   PDF (459 kB)  See Also: Erratum]

•	Normal-mode splitting and linewidth averaging for two-state atoms in an optical cavity M. G. Raizen, R. J. Thompson, R. J. Brecha, H. J. Kimble, and H. J. Carmichael pp. 240-243 [View   PDF (657 kB) ]

•	Localization and other common features of degenerate perturbations A. R. Rau pp. 244-247 [View   PDF (701 kB) ]

•	Accurate ab initio treatment of low-energy electron collisions with polyatomic molecules: Resonant electron-formaldehyde scattering T. N. Rescigno, C. William McCurdy, and B. I. Schneider pp. 248-251 [View   PDF (743 kB) ]

•	(e,2e) investigation of atomic hydrogen and helium close to threshold P. Schlemmer, T. Rösel, K. Jung, and H. Ehrhardt pp. 252-254 [View   PDF (518 kB) ]

•	Fragmentation of the photoabsorption strength in neutral and charged metal microclusters C. Yannouleas, R. A. Broglia, M. Brack, and P. F. Bortignon pp. 255-258 [View   PDF (609 kB) ]

•	Observation of nonclassical optical diffusion J. M. Drake and A. Z. Genack pp. 259-262 [View   PDF (835 kB) ]

•	Dynamic rigidity percolation in inverted micelles L. Ye, D. A. Weitz, Ping Sheng, S. Bhattacharya, J. S. Huang, and M. J. Higgins pp. 263-266 [View   PDF (712 kB) ]

•	Time-resolved spectroscopic measurements of high density in Ar-filled microballoon implosions C. F. Hooper Jr., D. P. Kilcrease, R. C. Mancini, L. A. Woltz, D. K. Bradley, P. A. Jaanimagi, and M. C. Richardson pp. 267-270 [View   PDF (610 kB) ]

•	Large-scale resonant modification of the polar ionosphere by electromagnetic waves A. Y. Wong, P. Y. Cheung, M. J. McCarrick, J. Stanley, R. F. Wuerker, R. Close, B. S. Bauer, E. Fremouw, W. Kruer, and B. Langdon pp. 271-274 [View   PDF (715 kB) ]

•	Exact derivation of the modified Young equation for partial wetting Douglas B. Abraham and Lee-Fen Ko pp. 275-278 [View   PDF (508 kB) ]

•	Experimental evidence for quasimelting in small particles P. M. Ajayan and L. D. Marks pp. 279-282 [View   PDF (1511 kB) ]

•	Structure of an unusual tilted state of CO on Fe(001) from x-ray photoelectron diffraction R. S. Saiki, G. S. Herman, M. Yamada, J. Osterwalder, and C. S. Fadley pp. 283-286 [View   PDF (756 kB) ]

•	Critical magnetic field dependence of thermally activated surface processes U. Seifert and H. Wagner pp. 287-289 [View   PDF (417 kB)  See Also: Erratum]

•	Negative thermal expansion of diamond and zinc-blende semiconductors Slawomir Biernacki and Matthias Scheffler pp. 290-293 [View   PDF (524 kB) ]

•	Proton diffusion in crystalline silicon F. Buda, Guido L. Chiarotti, R. Car, and M. Parrinello pp. 294-297 [View   PDF (669 kB) ]

•	Evidence for a dimer reconstruction at a metal-silicon interface D. Loretto, J. M. Gibson, and S. M. Yalisove pp. 298-301 [View   PDF (1026 kB) ]

•	Anisotropic spread of surface dimer openings in the initial stages of the epitaxial growth of Si on Si{100} D. Srivastava, B. J. Garrison, and D. W. Brenner pp. 302-305 [View   PDF (745 kB) ]

•	Scanning-tunneling-microscopy study of the Si(111)-7×7 rest-atom layer following adatom removal by reaction with Cl J. S. Villarrubia and John J. Boland pp. 306-309 [View   PDF (1142 kB) ]

•	Transfer-matrix analysis of a two-dimensional quasicrystal M. Widom, D. P. Deng, and C. L. Henley pp. 310-313 [View   PDF (635 kB) ]

•	Phason elasticity in entropic quasicrystals Katherine J. Strandburg, Lei-Han Tang, and Marko V. Jarić pp. 314-317 [View   PDF (857 kB) ]

•	Second-harmonic generation from the surface of a simple metal, Al R. Murphy, M. Yeganeh, K. J. Song, and E. W. Plummer pp. 318-321 [View   PDF (648 kB) ]

•	Jordan-Wigner transformation for quantum-spin systems in two dimensions and fractional statistics Eduardo Fradkin pp. 322-325 [View   PDF (484 kB) ]

•	Charging effects and quantum coherence in regular Josephson junction arrays L. J. Geerligs, M. Peters, L. E. de Groot, A. Verbruggen, and J. E. Mooij pp. 326-329 [View   PDF (648 kB) ]

•	Temperature dependence of the magnetic excitations in La1.85Sr0.15CuO4 (Tc=33 K) G. Shirane, R. J. Birgeneau, Y. Endoh, P. Gehring, M. A. Kastner, K. Kitazawa, H. Kojima, I. Tanaka, T. R. Thurston, and K. Yamada pp. 330-333 [View   PDF (515 kB) ]

•	Comment on ‘‘Color magnetism and the helicity-zero (γvN→Δ) transition amplitude’’ Afsar Abbas pp. 334 [View   PDF (123 kB) ]

•	Bourdeau and Mukhopadhyay reply Michele Bourdeau and Nimai C. Mukhopadhyay pp. 335 [View   PDF (167 kB) ]

•	Comment on ‘‘Noncommutative electric fields and consistency in anomalous gauge theories’’ Shinobu Hosono and Koichi Seo pp. 336 [View   PDF (172 kB) ]

•	Banerjee replies R. Banerjee pp. 337 [View   PDF (138 kB) ]

•	Comment on ‘‘High density plasmas produced by ultrafast laser pulses’’ H. M. Milchberg and H. R. Griem pp. 338 [View   PDF (191 kB) ]

•	Murnane, Kapteyn, and Falcone reply M. M. Murnane, H. C. Kapteyn, and R. W. Falcone pp. 339 [View   PDF (159 kB) ]