Colombian guerrilla movements have increasingly been associated with illicit activity and terror. This paper is divided into two main sections. The first traces the roots of the movements and describes how traditional Marxist-style guerrilla groups became more associated with crime and...

Polish Abstract: Artykuł podejmuje, w nawiązaniu do dochodzeń w sprawach wypadków i incydentów statków powietrznych oraz wykorzystania wyników tych badań, problematykę utrzymania odpowiedniej równowagi pomiędzy zapewnieniem bezpieczeństwa w lotnictwie a egzekwowaniem...

English Abstract: This paper is a detailed study of the differences between the Montreal Convention 1971 (as amended by the 1988 protocol) and the Beijing Convention 2010, and between the Hague Convention 1970 and the Beijing Protocol 2010, which amends the latter convention. The broadened scope...

Polish Abstract: W polskiej branży gastronomicznej pracuje ponad 500 tysięcy osób. Większość z nich pracuje sezonowo lub weekendowo. Studenci i ludzie młodzi stanowią większą część zaangażowanego personelu. Dzięki nim polska branża HoReCa intensywnie się rozwija. Większość...

Sensitivity analysis of lignite ultimate pit size and its parameters on change of lignite base price The influence of lignite base price on the size of ultimate pit (lignite supply) and decrease of lignite quality (decrease of calorific value and increase of sulphur and ash content) has been...

Opencast lignite mine and power plant as a bilateral monopoly in classical solution Based on example of opencast lignite mine and power plant operating on liberalized energy market the classical solution maximizing joint profits of bilateral monopoly has been presented. The graphic solution of...

Is vertical integration of mines and power plants profitable and for whom? Based on outcomes from the research of bilateral relation between lignite mines and power plant author describes several benefits from vertical integration including strategic benefits described by Porter and benefits...

We recall the historical changes that have taken place in the power markets worldwide and that have led to a partial or full opening for competition. Afterwards we discuss power market structure with special emphasis on differences between financial or other commodity markets on one hand and the...

Concern over the potential need to redefine universal service to account for Internet-related services and other combinations of communication and computing motivates this study of the geographic spread of commercial Internet Service Providers (ISPs), the leading suppliers of Internet access in...