10,498 research outputs found

    Developing, Implementing and Evaluating Policies to Support Fisheries Co-management

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    The aim of this document is to bring together a number of the lessons relating to the development, implementation and evaluation of policies to support co-management that have emerged from projects undertaken through the DFID Fisheries Management Science Programme (FMSP) and elsewhere. It is beyond the scope of this document to provide a comprehensive analysis or guide. It seeks to highlight some experiences and some areas that need to be considered by policy makers when attempting to develop sustainably co-managed fisheries. This document is targeted to fisheries policy makers, and decision-makers concerned with the fisheries sector

    Co-management: A Synthesis of the Lessons Learned from the DFID Fisheries Management Science Programme

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    For the last eleven years, the UK Department for International Development (DfID) have been funding research projects to support the sustainable management of fisheries resources (both inland and marine) in developing countries through the Fisheries Management Science Programme (FMSP). A number of these projects that have been commissioned in this time have examined fisheries co-management. While these projects have, for the most part, been implemented separately, the FMSP has provided an opportunity to synthesise and draw together some of the information generated by these projects. We feel that there is value in distilling some of the important lessons and describing some of the useful tools and examples and making these available through a single, accessible resource. The wealth of information generated means that it is impossible to cover everything in detail but it is hoped that this synthesis will at least provide an overview of the co-management process together with some useful information relating to implementing co-management in a developing country context and links to the more detailed re-sources available, in particular on information systems for co-managed fisheries, participatory fish stock assessment (ParFish) and adaptive learning that have, in particular, been drawn upon for this synthesis. This synthesis is aimed at anyone interested in fisheries management in a developing country context

    Up-down symmetry of the turbulent transport of toroidal angular momentum in tokamaks

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    Two symmetries of the local nonlinear delta-f gyrokinetic system of equations in tokamaks in the high flow regime are presented. The turbulent transport of toroidal angular momentum changes sign under an up-down reflection of the tokamak and a sign change of both the rotation and the rotation shear. Thus, the turbulent transport of toroidal angular momentum must vanish for up-down symmetric tokamaks in the absence of both rotation and rotation shear. This has important implications for the modeling of spontaneous rotation.Comment: 15 pages, 2 figure

    Invariant tensors and Casimir operators for simple compact Lie groups

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    The Casimir operators of a Lie algebra are in one-to-one correspondence with the symmetric invariant tensors of the algebra. There is an infinite family of Casimir operators whose members are expressible in terms of a number of primitive Casimirs equal to the rank of the underlying group. A systematic derivation is presented of a complete set of identities expressing non-primitive symmetric tensors in terms of primitive tensors. Several examples are given including an application to an exceptional Lie algebra.Comment: 11 pages, LaTeX, minor changes, version in J. Math. Phy

    A Short Survey Of Laws Designed To Exclude The Financially Irresponsible Driver From The Highway

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    Economic Method: The Science in Trade

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    In observing the universe, philosophers have offered their thought processes for understanding the perceivable reality, which we know as science. These thought processes are constructed into scientific methods to conquer the unknown. Economics existing through human interaction in society holds its own characteristics that scholars have sought out to outline the nature of trade. Within this book, the various approaches of science will be presented and tests across various case studies in Economics to test validity of arguments and connections between thought processes across different disciplines. This work is guided by Steven Gimbel and his work Exploring the Scientific Method and provides the base of each chapter and adventure in the book concerning philosophy and economics. Through testing six scientific approaches to the universe, one will remain victorious in confronting nature’s unknown

    One if by Land, Two if by Sea

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    One if by land, two if by sea. Sorry, Paul! With the advent of Glasnost we may no longer need your warning
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