infrastructure development often leads to considerable changes in the land use. these changes are major causes of habitat fragmentation and ecosystem loss. moreover, decrease of the environmental impacts on biodiversity is among the most important objectives of sustainable development. for this purpose, environmental impact assessment (eia) along with the other appropriate tools can be applied ...

Work on thermal ~egradation of poly mers has prev iously been carried out aL lempC'mt ures up to about 500 G. In the present work the range has been extend cd to 850 0 C. Polystyrene was pyrolyzed in a vacuum and also in helium at atmos pheric pressure at 3620 and at 850 0 C. Analysis of t he volatile products indicates that higher temperatures a nd hi~her. pressures cause a greater fragmen tat...

Interaction diagrams are used in multi-agent systems to describe computation threads of agents and communication between agents. The IDaF (Interaction Diagrams And Fragmen-tations) is a tool suite based on the formalism of interaction diagrams and fragmentations. The tool suite consists of ValidatoR, FormatteR, TranslatoR, GrapheR and TesteR. This paper describes the usage of the tool suite.

Certain histologie features of virus-rich cottontail papillomas were different from those of tumors poor in virus content. The virus-rich papillomas were characterized by a marked fragmen tation of the horny layer and a well-developed granular layer which contained many keratohyalin bodies of unusually large size. A series of histochemical tests have confirmed that such large bodies are, in fac...