Divorce, Custody, Gender, and the Limits of Law: On \u3cem\u3eDividing the Child\u3c/em\u3e

A Review of Dividing the Child: Social and Legal Dilemmas of Custody by Elanor E. Maccoby and Robert H. Mnooki

The Legal History of the Family

A Review of Governing the Hearth: Law and the Family in Nineteenth-Century America by Michael Grossber

Moral Discourse and Family Law

It seems appropriate in the early stages of an experiment in legal publishing to say something about it, if only because few forms have been as resistant to innovation as the law review. The creation of a section for correspondence regarding recent articles provides a medium for conducting just the national discourse which scholarship aspires to provoke and which does occur in private conversations or letters and, occasionally, in panels at professional meetings. To talk in print about a colleague\u27s work - to praise it, qualify it, pursue suggested or alternate lines of thought - is not only an enjoyable thing to do but promises to facilitate more focused interchanges of ideas and research than has previously been possible

The microscopic nature of localization in the quantum Hall effect

The quantum Hall effect arises from the interplay between localized and extended states that form when electrons, confined to two dimensions, are subject to a perpendicular magnetic field. The effect involves exact quantization of all the electronic transport properties due to particle localization. In the conventional theory of the quantum Hall effect, strong-field localization is associated with a single-particle drift motion of electrons along contours of constant disorder potential. Transport experiments that probe the extended states in the transition regions between quantum Hall phases have been used to test both the theory and its implications for quantum Hall phase transitions. Although several experiments on highly disordered samples have affirmed the validity of the single-particle picture, other experiments and some recent theories have found deviations from the predicted universal behaviour. Here we use a scanning single-electron transistor to probe the individual localized states, which we find to be strikingly different from the predictions of single-particle theory. The states are mainly determined by Coulomb interactions, and appear only when quantization of kinetic energy limits the screening ability of electrons. We conclude that the quantum Hall effect has a greater diversity of regimes and phase transitions than predicted by the single-particle framework. Our experiments suggest a unified picture of localization in which the single-particle model is valid only in the limit of strong disorder