870 resultados para Chloroplast transformation
Resumo:
Drawing upon criminological studies in the field of prisoner rehabilitation, this essay explores the relevance of the Demobilisation, Disarmament and Reintegration (DDR) framework to the process of conflict transformation in Northern Ireland. In a similar fashion to the critique of 'passivity' offered by, for example, the 'strengths based' or 'good lives' approach to prisoner resettlement and reintegration more generally, the authors contend that the Northern Ireland peace process offers conspicuous examples of former prisoners and combatants as agents and indeed leaders in the process of conflict transformation. They draw out three broad styles of leadership which have emerged amongst ex-combatants over the course of the Northern Ireland transition from conflict-political, military and communal. They suggest that cumulatively such leadership speaks to the potential of ex-prisoners and ex-combatants as moral agents in conflict transformation around which peacemaking can be constructed rather than as obstacles which must be 'managed' out of existence.
Resumo:
The landscape of political imprisonment in Northern Ireland was changed due to the general release and reintegration of politically motivated prisoners as part of the Belfast Agreement. This article reflects upon the post-prison experiences of former prisoners and their families, and in particular how the move from a resistant to a transitional framework has facilitated a greater openness and willingness amongs ex-prisoners to acknowledge the personal and familial problems related to incarceration. We also explore the ways in which ex-prisoners have attempted to deal with the continued social, political and civic exclusion which arises as a result of their conflict-related 'criminal' convictions. In the final section of the article, the authors further develop the move from a resistant to a transitional characterization of incarceration and its consequences.
Resumo:
The transformation of vaterite into calcite may be performed by heating in the presence and the absence of oxygen. Vaterite remains thermally stable until a calcination temperature of 450°C. It transforms progressively to calcite up to 500°C giving two exothermic peaks: 1) at 481°C due to the transformation of vaterite surface which is in contact with a small amount of calcite phase already formed with the time on the solid surface from the humidity atmosphere; 2) at 491°C due to the transformation of pure vaterite bulk. The calcite phase remains stable until 700°C. Above this temperature the formation of CaO is observed.
Resumo:
Samples of Zn/H-ZSM-5 zeolite were prepared by impregnation of the parent zeolite with Zn(NO3)(2). The state of zinc in the samples was analyzed by XPS measurements, (ald the degree of reduction for the zinc oxide on the ZSM-5 zeolite surface in hydrogen atmosphere was determined, as well as the influence of this reducing treatment upon the activity and selectivity for aromatics of zeolites in aromatization of cyclohexane. It resulted that the degree of reduction depends on the concentration of zinc in the zeolite and is influenced by the presence of alumina binder. The results of the activity and selectivity to aromatics were correlated with the reduction of zinc oxide.