In the 5th century, the fundamental demographic processes shaping the genetic structure of the 10th-12th century population living in the area of contemporary Poland had ended. No additional migration after the 5th century in Central Europe (CE) was necessary for the formation of the genetic structure of the inhabitants of the Piast State, shows the research of scientists led by Professor Marek Figlerowicz.
A hundred years ago, a woman was the author of an average of one book in 20 published. Currently, this distribution is almost even. This marks a change of an era, and authorship is one of the best measures of gender equality in the long term, scientists conclude based on research of several million Polish and German publications.
Only a small part of museum collections usually require a stable microclimate. Museums do not have to incur huge costs of maintaining constant temperature and humidity. They can make better use of funds for the protection of works of art, argues a scientist who studies the degradation of cultural heritage.