Volume 65, Issue 26

D. G. Crabb, W. A. Kaufman, A. D. Krisch, A. M. T. Lin, D. C. Peaslee, R. A. Phelps, R. S. Raymond, T. Roser, J. A. Stewart, B. S. Van Guilder, B. Vuaridel, V. K. Wong, K. A. Brown, L. G. Ratner, G. Glass, C. A. Miller, M. Vetterli, and F. Z. Khiari

Phys. Rev. Lett. 65, 3241 (1990) - Published 24 December, 1990

Sea-quark effects in pion-nucleon scattering

R. Müller and H. M. Hofmann

Phys. Rev. Lett. 65, 3245 (1990) - Published 24 December, 1990

Nuclear Physics

Limits on nonstandard weak currents from the positron decays of ${}^{14}O$ and ${}^{10}C$

A. S. Carnoy, J. Deutsch, T. A. Girard, and R. Prieels

Phys. Rev. Lett. 65, 3249 (1990) - Published 24 December, 1990

Atomic, Molecular, and Optical Physics

Near-threshold vibrational excitation of $H_{2}$ by electron impact: Resolution of discrepancies between experiment and theory

Stephen J. Buckman, M. J. Brunger, D. S. Newman, G. Snitchler, S. Alston, D. W. Norcross, Michael A. Morrison, B. C. Saha, G. Danby, and W. K. Trail

Phys. Rev. Lett. 65, 3253 (1990) - Published 24 December, 1990

Observation of unusually enhanced satellite band in Penning-ionization electron spectra of benzene and toluene

S. Masuda, M. Aoyama, K. Ohno, and Y. Harada

Phys. Rev. Lett. 65, 3257 (1990) - Published 24 December, 1990

Observation of orientation propensity for electron capture in multiply-charged-ion–atom collisions

P. Roncin, C. Adjouri, M. N. Gaboriaud, L. Guillemot, M. Barat, and N. Andersen

Phys. Rev. Lett. 65, 3261 (1990) - Published 24 December, 1990

Evidence for electron correlation in the two-electron continuum during double ionization in 300-keV $H^{+}$ +He collisions

B. Skogvall and G. Schiwietz

Phys. Rev. Lett. 65, 3265 (1990) - Published 24 December, 1990

Nonperturbative approach to atomic multiphoton processes under intense, short laser pulses

X. Tang, H. Rudolph, and P. Lambropoulos

Phys. Rev. Lett. 65, 3269 (1990) - Published 24 December, 1990

Transform-limited collisions of K Rydberg atoms

D. S. Thomson, M. J. Renn, and T. F. Gallagher

Phys. Rev. Lett. 65, 3273 (1990) - Published 24 December, 1990

Optical measurements of methyl-group tunneling and nuclear-spin conversion

Christian von Borczyskowski, Andreas Oppenländer, H. Peter Trommsdorff, and Jean-Claude Vial

Phys. Rev. Lett. 65, 3277 (1990) - Published 24 December, 1990

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, Etc.

Conditional averaging procedure for the elimination of the small-scale modes from incompressible fluid turbulence at high Reynolds numbers

W. D. McComb and A. G. Watt

Phys. Rev. Lett. 65, 3281 (1990) - Published 24 December, 1990

Plasma and Beam Physics

Large-scale ionospheric modifications produced by nonlinear refraction of an hf wave

J. D. Hansen, G. J. Morales, L. M. Duncan, J. E. Maggs, and G. Dimonte

Phys. Rev. Lett. 65, 3285 (1990) - Published 24 December, 1990

Self-sustained collisional drift-wave turbulence in a sheared magnetic field

Bruce D. Scott

Phys. Rev. Lett. 65, 3289 (1990) - Published 24 December, 1990

Condensed Matter: Structure, Etc.

Observation of a topological transition in the ${}^{3}A$ vortices

J. P. Pekola, K. Torizuka, A. J. Manninen, J. M. Kyynäräinen, and G. E. Volovik

Phys. Rev. Lett. 65, 3293 (1990) - Published 24 December, 1990

Behavior of susceptibility and polarization near a smectic-A– ferroelectric-smectic-C tricritical point

Ch. Bahr and G. Heppke

Phys. Rev. Lett. 65, 3297 (1990) - Published 24 December, 1990

Direct dynamical calculation of entropy and free energy by adiabatic switching

Masakatsu Watanabe and William P. Reinhardt

Phys. Rev. Lett. 65, 3301 (1990) - Published 24 December, 1990

Deformation, growth, and order in sheared spinodal decomposition

Daniel H. Rothman

Phys. Rev. Lett. 65, 3305 (1990) - Published 24 December, 1990

Structural properties of α-quartz near the amorphous transition

James R. Chelikowsky, H. E. King, Jr., N. Troullier, José Lus Martins, and J. Glinnemann

Phys. Rev. Lett. 65, 3309 (1990) - Published 24 December, 1990

Phase behavior of the Au(111) surface: Discommensurations and kinks

K. G. Huang, Doon Gibbs, D. M. Zehner, A. R. Sandy, and S. G. J. Mochrie

Phys. Rev. Lett. 65, 3313 (1990) - Published 24 December, 1990

Energies controlling nucleation and growth processes: The case of Ag/W(110)

G. W. Jones, J. M. Marcano, J. K. Nørskov, and J. A. Venables

Phys. Rev. Lett. 65, 3317 (1990) - Published 24 December, 1990

Surface-induced ordering in models for ‘‘frustrated’’ face-centered-cubic alloys

W. Schweika, K. Binder, and D. P. Landau

Phys. Rev. Lett. 65, 3321 (1990) - Published 24 December, 1990

Structure of the H-saturated Si(100) surface

John J. Boland

Phys. Rev. Lett. 65, 3325 (1990) - Published 24 December, 1990

Observation of a monovacancy in the metastable state of the EL2 defect in GaAs by positron annihilation

R. Krause, K. Saarinen, P. Hautojärvi, A. Polity, G. Gärtner, and C. Corbel

Phys. Rev. Lett. 65, 3329 (1990) - Published 24 December, 1990

Condensed Matter: Electronic Properties, Etc.

Temperature dependence of the conductivity and minimum quantum mobility of a highly disordered dilute two-dimensional electron gas

P. W. Adams

Phys. Rev. Lett. 65, 3333 (1990) - Published 24 December, 1990

Solving the phase problem with multiple-beam diffraction and elliptically polarized x rays

Qun Shen and K. D. Finkelstein

Phys. Rev. Lett. 65, 3337 (1990) - Published 24 December, 1990

Squeezed fermion states

K. Svozil

Phys. Rev. Lett. 65, 3341 (1990) - Published 24 December, 1990

Magnetic domains in thin epitaxial Co/Au(111) films

R. Allenspach, M. Stampanoni, and A. Bischof

Phys. Rev. Lett. 65, 3344 (1990) - Published 24 December, 1990

Cross-Disciplinary Physics

Shape and size fluctuations of microemulsion droplets: The role of cosurfactant

B. Farago, D. Richter, J. S. Huang, S. A. Safran, and S. T. Milner

Phys. Rev. Lett. 65, 3348 (1990) - Published 24 December, 1990

Genetic fusion

Takashi Ikegami and Kunihiko Kaneko

Phys. Rev. Lett. 65, 3352 (1990) - Published 24 December, 1990

COMMENTS

Comment on ‘‘Photoionization of mass-selected $K_{n}^{+}$ ions: A test for the ionization scaling law’’

Walt A. de Heer and Paolo Milani

Phys. Rev. Lett. 65, 3356 (1990) - Published 24 December, 1990

Comment on ‘‘Stochastically induced coherence in bistable systems’’

Jaroslav Stark

Phys. Rev. Lett. 65, 3357 (1990) - Published 24 December, 1990

Irwin, Fraser, and Kapral reply

Andrew J. Irwin, Simon J. Fraser, and Raymond Kapral

Phys. Rev. Lett. 65, 3358 (1990) - Published 24 December, 1990

ERRATA

Comment on "Normal-Distortion-Mode Approach to Liquid-Crystal Elastic Energy"

P. Palffy-Muhoray

Phys. Rev. Lett. 65, 3359 (1990) - Published 24 December, 1990