‘Mountain resorts’: origins and evolution

The paper discusses the background for the emergence of such ‘mountain resorts’, their types and changes in their mode of operation. Some theoretical and practical issues will be illustrated with examples derived from Europe, North America, Asia and Africa

Blown-up \v{C}ech cohomology and Cartan's Theorem B on real algebraic varieties

We introduce a concept of blown-up \v{C}ech cohomology for coherent sheaves of homological dimension $\leq 1$ and some quasi-coherent sheaves on a non-singular real affine variety. Its construction involves a directed set of multi-blowups. We establish, in particular, long exact cohomology sequence and Cartan's Theorem B. Finally, some applications are provided, including universal solution to the first Cousin problem (after blowing up)

Tourism Development in Łódź in 2000-2014: Directions and Character of Change

The primary aim of the article is to present the scope and character of tourism in Łódź, between 2000 and 2014. The author will show both the overall changes in numbers of registered tourists during those 15 years, its distribution within the city in the last year, and the number and specificity of foreign arrivals (non-residents). Based on surveys in 2009-12, the author will discuss the structure of tourism in Łódź, taking into consideration one-day visitors and tourists, tourism consumption and distribution within the city space