The paper concerns a risk assessment and management methodology in critical infrastructures. The aim of the paper is to present researches on risk management within the experimentation tool based on the OSCAD software. The researches are focused on interdependent infrastructures where the specific phenomena, like escalating and cascading effects, may occur. The objective of the researches is to acquire knowledge about risk issues within interdependent infrastructures, to assess the usefulness of the OSCAD-based risk manager in this application domain, and to identify directions for further R&D works. The paper contains a short introduction to risk management in critical infrastructures, presents the state of the art, and the context, plan and scenarios of the performed validation experiments. Next, step by step, the validation is performed. It encompasses two collaborating infrastructures (railway, energy). It is shown how a hazardous event impacts the given infrastructure (primary and secondary eects) and the neighbouring infrastructure. In the conclusions the experiments are summarized, the OSCAD software assessed and directions of the future works identified.

Ostracods from Admiralty Bay on King George Island (South Shetland Islands) represent 29 podocopid species, belonging to 19 genera, one cladocopid and six myodocopid species. They were recovered from Recent marine and/or glacio-marine sediment samples from water depths of up to 520 m. These ostracods constitute a variable assemblage, which is overall typical for the Antarctic environment. Shallow-water assemblages tend to be more variable in terms of frequencies and species richness than deep-water assemblages. The later are low in numbers and remain relatively high diversities. Overall, no linear relation between ostracod assemblage-composition and environmental features analyzed was recognized.

Autor uważa, że każda jednoznaczna ocena filozofii Marksa jest nieprzekonująca, ponieważ zaciera istotne różnice w obrębie jego myśli. Choć Marks stworzył jedną filozofię, sprawiającą wrażenie jednolitej tkaniny, jest ona spleciona z wątków naukowych i nienaukowych. Wątek naukowy wiąże się z pojęciami niestabilności kapitalizmu, wyzysku proletariatu i alienacji człowieka. Wątek nienaukowy wiąże się z pojęciami dialektyki, gospodarki towarowej i komunizmu. Pierwszy wątek jest poważny i przekonujący, drugi fantastyczny i arbitralny.