1,674 research outputs found

    Land Theft as Rural Eco-Crime

    Get PDF
    Land grabbing in various forms is happening in many different parts of this globe. This involves ‘outsiders’ - nation-states as well as corporations - colluding with local domestic elites to radically alter existing land ownership and land uses. Contemporary forms of land theft take place under the guise of acquiring land for food and biofuels, and through imposition of resource extraction activities such as logging and mining. They also occur when land is sealed up for the purposes of carbon sequestration and for conservation. From the point of view of environmental justice, such land reconfigurations represent ‘theft’ insofar as they challenge the basic ways of life and subsistence abilities of traditional land owners. These stakeholders are generally vulnerable to land grabs by powerful interests, leading to immediate and longer term hardship. For green criminology, activity which diminishes social equity in the provision of healthy sustainable environments can be considered a type of eco-crime

    Environmental harm and crime prevention

    Get PDF
    This paper discusses what can be learned from traditional crime prevention to reduce and prevent environmental harm. It underlines how a problem-solving approach involves tailoring interventions and strategies based on the source and type of harm, and according to place, scale and the perceived threat

    Gapped Heisenberg spin chains in a field

    Full text link
    We consider the fully anisotropic Heisenberg spin-1/2 antiferromagnet in a uniform magnetic field, whose ground-state is characterized by broken spin rotation symmetry and gapped spinon excitations. We expand on a recent mean-field approach to the problem by incorporating fluctuations in a loop expansion. Quantitative results for the magnetization, excitation gap and specific heat are obtained. We compare our predictions with new DMRG and exact diagonalization data and, for zero field, with the exact solution of the XYZ{XYZ} spin chain from the Bethe Ansatz.Comment: 11 pages, 14 figure

    STB-White

    Get PDF
    The final design of a hypersonic, SCRAMjet research aircraft, which is to be dropped from a carrier plane, is considered. Topics such as propulsion systems, aerodynamics, component weight analysis, and aircraft design with waverider analyses are stressed with smaller emphasis placed on aircraft systems such as cockpit design and landing gear configurations. Propulsion systems include analysis of the turbofanramjet for acceleration to low hypersonic speed (Mach 6.0) and analysis of the SCRAMjets themselves to carry the aircraft to Mach 10.0. Both analyses include the use of liquid hydrogen as fuel. Inlet design for both propulsion systems is analyzed as well. Aerodynamic properties are found using empirical and theoretical formulas for lift and drag on delta-wing aircraft. The aircraft design involves the integration of all preliminary studies into a modified waverider configuration
    corecore