Public and religious ceremonies were part of the daily life of many Jesuit colleges throughout Europe. The Jesuit education was enriched by numerous occasional celebrations and events, of which many were closely related to the academic year. Young noblemen and magnates took part in various school and public celebrations, which marked the culmination of important teaching stages. Leaving the college was linked to a public debate, which was a great event in the life of the college. It gathered an eminent audience and was accompanied by extensive ephemeral decorations. In the Baroque period, young Polish nobles and magnates also took part in numerous ceremonies during their education in the colleges of the Polish-Lithuanian Commonwealth, and the educational travels in the most famous colleges in Europe. In the summer of 1686, Jan Stanisław Jabłonowski and his brother Aleksander Jan, sons of the Grand Crown Hetman Stanisław Jabłonowski and Marianna née Kazanowska, held solemn debates in the famous Collège Louis-le-Grand in Paris. It was one of the stages of their educational journey through Europe in the years 1682–1688. The travel diaries by Aleksander Jan and his tutor Jan Michał Kossowicz attempt to recreate the course of the ceremony, and provide valuable information about its artistic setting. The theses of the Jabłonowski Brothers were published in 1686 in Paris. The sequence of the ceremony and the ephemeral decorations that accompanied it carried a clear message glorifying the Polish Hetman, a commander from Vienna, famed as the Mars Polonicus.

Changes in river channel morphological parameters are influenced by anthropogenic factors, such as climatic changes, river catchment management changes, and hydrotechnical development of rivers. To assess the intensity of individual pressures and the resulting changes in abiotic and biotic factors in the riverbed, water quality monitoring is conducted, including the assessment of the hydromorphological status. The assessment can be based on the River Habitat Survey (RHS) which is a synthetic method that includes the evaluation of habitat character and river quality based on their morphological structure.
The input data, which characterise any river include physical features of hydrotechnical structures, bed granulation, occurrence of bedforms, visible morphodynamic phenomena, and a sediment transport pattern. The RHS method allows to determine two quantitative indices used to evaluate the hydromorphological status: Habitat Modification Score ( HMS), which determines the extent of transformation in the morphology of a watercourse, and Habitat Quality Assessment ( HQA), which is based on the presence and diversity of natural elements in a watercourse and river valley.
The proposed method can be divided into three stages. The first assesses the river section hydromorphological indices, describing the degree of technical modification ( HMS) and the ecological quality of the reach ( HQA), using the RHS method. The second stage describes morphological changes resulting from the technical regulation and estimates indices for the regulated reach. Finally, we compare HQA and HMS indices before and after the regulation. This comparison is described by numerical indicators and related to reference values.