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Wieloaspektowa ocena procesów starzenia się ludności na obszarach wiejskich w Polsce

Kamińska W., Ossowski W.

Biuletyn Komitetu Przestrzennego Zagospodarowania Kraju PAN

2017

No 267

9--36

The aim of the article is a multifaceted assessment of the degree of advancement of population aging processes in Polish rural areas. The authors were looking for answers to the following questions: What was the pace of aging of the rural population in Poland in the years 2002-2015? What were the spatial patterns in the degree of advancement of the aging processes of the rural population? Have there been differences in the rate of aging of urban and rural society in the country?

Problems of absolute tree-ring dating of the oldest boatbuilding relics from Poland

Krąpiec M., Ossowski W.

Geochronometria

2000

Vol. 19

27-32

The present paper discusses differences between the results of radiocarbon and dendrochronological dating of boatbuilding relics from the area of Poland. In the case of logboats, limitations in precise determination of the time of their use, due to the technique of their manufacture, the state of their preservation and the preferences of certain tree species at the construction of logboat, are indicated. The example of a wreckage of an early medieval plank boat discovered at Ląd demonstrates that, because of extensive processing of the organic material used for its construction, accurate and precise determination of the chronology could be possible only on the basis of selected samples. The chronology of this object was corrected to the years after 1125 AD. The teleconnection with regional chronologies reveals that the wood used for construction of the boat from Ląd came from vicinity of Wrocław.