The Law to Govern Deepsea Mining until Superseded by International Agreement

Presently, no international law exists to limit recovering mineral sources of the seabed beyond coastal state jurisdiction. Bills directed at regulating deep seabed mining, through international reciprocity, by U.S. companies have been introduced in both the Senate and the House of Representatives. This Article reviews pending legislation and comparable statutes proposed abroad and suggests the enactment of interim legislation, while at the same time responding to Professor Knight\u27s assertions in his Article, The Deep Seabed Hard Mineral Resources Act A Negative View. This Article concludes that international legislation would help, rather than hurt, the United States

Panel Discussion: Expropriation, Threats of Expropriation and Developmental Policy

This panel discussion is a conversation about the place of expropriation in international law

Persistent and polarised global actin flow is essential for directionality during cell migration

Cell migration is hypothesized to involve a cycle of behaviours beginning with leading edge extension. However, recent evidence suggests that the leading edge may be dispensable for migration, raising the question of what actually controls cell directionality. Here, we exploit the embryonic migration of Drosophila macrophages to bridge the different temporal scales of the behaviours controlling motility. This approach reveals that edge fluctuations during random motility are not persistent and are weakly correlated with motion. In contrast, flow of the actin network behind the leading edge is highly persistent. Quantification of actin flow structure during migration reveals a stable organization and asymmetry in the cell-wide flowfield that strongly correlates with cell directionality. This organization is regulated by a gradient of actin network compression and destruction, which is controlled by myosin contraction and cofilin-mediated disassembly. It is this stable actin-flow polarity, which integrates rapid fluctuations of the leading edge, that controls inherent cellular persistence