Statistical software has also become an important part of scientific research that is reflected in the publications of the research results. Publishing a mathematical theorem requires also the publication of the proof of this theorem. The result of a computation can be seen as the equivalent of...

Since the lst of April 1997 date of the implementation of the third package of the liberalization, air transport, within the european Union has become totally liberalized. In the United States the deregulation of domestic air traffic was earlier and faster since it took place in October 1978...

Statistical software has also become an important part of scientific research that is reflected in the publications of the research results. Publishing a mathematical theorem requires also the publication of the proof of this theorem. The result of a computation can be seen as the equivalent of...

Low-quality or nonexistent sanitation affects health and hinders economic development, especially in the world's poorest countries. To address this issue, the Water and Sanitation Program, a partnership administered by the World Bank and funded by the Bill & Melinda Gates Foundation, launched a...