An introduction to overlay journals

An overlay journal performs all the activities of a scholarly journal and relies on structural links with one or more archives or repositories to perform its activities. This paper offers a briefing on the contribution overlay journals can make to scholarly communication. It explains what ‘overlay’ services are, how overlay journals have evolved and what makes their contribution to scholarly communication so valuable

Acknowledgement

The editorial team’s acknowledgement of Dr. Mina Chung’s contribution to the publication of the journal

Sling effect in collisions of water droplets in turbulent clouds

We describe and evaluate the contribution of sling effect into the collision rate of the same-size water droplets in turbulent clouds. We show that already for Stokes numbers exceeding 0.2 the sling effect gives a contribution comparable to Saffman-Turner contribution, which may explain why the latter consistently underestimates collision rate (even with the account of preferential concentration).Comment: 7 pages, 6 figures; preprint submitted to Journal of Atmospheric Science

The Quest for Understanding in Relativistic Quantum Physics

We discuss the status and some perspectives of relativistic quantum physics.Comment: Invited contribution to the Special Issue 2000 of the Journal of Mathematical Physics, 38 pages, typos corrected and references added, as to appear in JM

Editorial

An introduction to the journal is presented in which the author discusses several articles including those on today's teaching and learning of language and music, Sylvia Ashton-Warner's contribution to educational theory and classroom pedagogy and curriculum and curriculum change

Instantons and Non-Perturbative Dynamics of N=2 Supersymmetric Abelian Gauge Theories in Two Dimensions

We study N=2 supersymmetric Abelian gauge model with the Fayet-Iliopoulos term and an arbitrary number of chiral matter multiplets in two dimensions. By analyzing the instanton contribution we compute the non-perturbative corrections to the mass spectrum of the theory and the quantum deformation of the classical vacua space. In contrast to known examples the non-perturbative bosonic potential is saturated by the one-instanton contribution and can be directly found within the semiclassical expansion around the one-instanton saddle point.Comment: journal versio