OPEN Repository

Welcome to OPEN - the Repository of Open Scientific Publications, run by the Interdisciplinary Centre for Mathematical and Computational Modelling, University of Warsaw, previously operating as the CeON Repository. The Repository enables Polish researchers from all fields to openly share their articles, books, conference materials, reports, doctoral theses, and other scientific texts.

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23110 archived items

Recent Submissions

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Demographic Analysis - Selected Concepts, Tools, and Applications
(IntechOpen, 2021) Klimczuk, Andrzej; SGH Warsaw School of Economics, Warsaw, Poland
Demographic Analysis - Selected Concepts, Tools, and Applications presents basic definitions, practical techniques, and methods, as well as examples of studies based on the usage of demographic analysis in various institutions and economic entities. The volume covers studies related to population distribution, urbanization, migration, population change and dynamics, aging, longevity, population theories, and population projections. It is an asset to academic and professional communities interested in advancing knowledge on diverse populations in various contexts such as public policies, public services, education, and labor markets. The book aims to help students of demography as well as practitioners of other fields of social sciences and people in government, business, and nonprofit organizations.
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Zachowawczy sztandar na uchodźstwie? Przyczynek do portretu zbiorowego wybranych emigracyjnych środowisk społeczno-politycznych zrzeszających polskich konserwatystów po II wojnie światowej
(Instytut im. gen. Władysława Andersa, 2021-12-31) Dworski, Michał; Katolicki Uniwersytet Lubelski Jana Pawła II
Celem artykułu jest zarysowanie wstępnej charakterystyki wybranych postaci i środowisk życia politycznego emigracji niepodległościowej po II wojnie światowej utożsamiających się z szeroko rozumianą myślą konserwatywną. Przez brak odpowiedniej instytucjonalizacji oraz transmisji praktyki politycznej sprzed 1939 roku polscy konserwatyści na uchodźstwie nie stworzyli wspólnego podmiotu, który odwoływałby się do tradycji przedwojennego ruchu zachowawczego. Wielokrotnie zindywidualizowana forma aktywności, bazowanie w głównej mierze na relacjach społeczno-towarzyskich i brak definiowania własnej postawy przez pryzmat myśli konserwatywnej wpływają na trudność uchwycenia ram portretu zbiorowego polskich konserwatystów po II wojnie światowej. Artykuł stawia sobie za zadanie wyznaczenie głównych obszarów tej problematyki, sygnalizując jedynie wybranie zagadnienia.
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Accumulation of heavy metals in soil and litter of roadside plantations in Western Polissia of Ukraine
(Committee on Forestry Sciences and Wood Technology of the Polish Academy of Sciences and the Forest Research Institute in Sękocin Stary, 2021-09-15) Maksimtsev, Serhii; Dudarets, Serhii; Yukhnovskyi, Vasyl; National University of Life and Environmental Sciences of Ukraine, Forest Restoration and Meliorations Department, Kyiv, Ukraine
The article presents the results of a study on the influence of roadside forest belts of different species composition on the accumulation of heavy metals in soil and litter along roads of international and national importance in the conditions of Western Polissia of Ukraine. Mobile forms of Cd, Cu, Pb and Zn in soil and forest litter samples were determined in ammonium acetate extract buffer by atomic absorption spectrometry. The analysis of the content of heavy metals, their comparison with the maximum allowable concentrations depending on the composition of plantations and the category of the highway have been done. It is confirmed that roadside forest belts perform important functions in the accumulation of heavy metals in soil and forest litter. It is confirmed that roadside forest belts perform important functions in the accumulation of heavy metals in soil and forest litter. Among all the pollutants studied, the concentration of cadmium was the lowest and that of zinc the highest (especially in forest litter). Lead and copper in this indicator occupied an intermediate position. Despite the different species composition of plantations, the coefficient of concentration of heavy metals in the soil did not exceed the maximum allowable concentrations and was on average in the range of 0.10–0.20 of these indicators. The greatest effect of delaying the migration of heavy metals was observed in forest litter. Therefore, in order to effectively use the biological barrier along the roads, it is necessary to create linear protective belts of deciduous species with Acer platanoides, Betula pendula, Carpinus betulus and Tilia cordata, which give a rich annual litterfall.
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Genetic diversity of Betula nana in Sweden and conservation implications for protection of relict Polish populations
(Committee on Forestry Sciences and Wood Technology of the Polish Academy of Sciences and the Forest Research Institute in Sękocin Stary, 2021-09-15) Dąbrowska, Grażyna B.; Dąbrowski, Henryk P.; Szyp-Borowska, Iwona; Nicolaus Copernicus University in Toruń, Faculty of Biological and Veterinary Sciences, Department of Genetics, Toruń, Poland; Biskupin Archaeological Museum, Dendroarchaeological Laboratory, Biskupin, Poland; Forest Research Institute, Department of Silviculture and Genetics of Forest Trees, Sękocin Stary, Poland
The natural range of the dwarf birch (Betula nana L.) includes the boreal, subarctic and arctic regions of Europe, Asia and North America, where it is relatively common. In Poland, it is a relict species occurring in fragmented populations. Using the random amplification of polymorphic DNA (RAPD) technique, we investigated the genetic diversity of the four Swedish populations representing a part of the continuous range of dwarf birch. With the knowledge of the level of genetic diversity of a population from a continuous distribution, we can assess the genetic status of polish populations and answer the question if habitat fragmentation and a decrease in population size lead to a loss in genetic diversity. Knowledge of genetic diversity is important for species conservation, especially to predict their ability to respond to environmental pressures. We found that the populations Abisko, Malbo, Gällivare and Storlien, which are located at the edge of the natural range of B. nana and occupy different habitats, are genetically diverse to varying degrees. The northern populations from Abisko and Gällivare showed a lower level of genetic polymorphism than the population from Malbo, the southernmost site of dwarf birch in Sweden. The data presented indicate higher genetic diversity existed within populations, whereas genetic differentiation between populations was lower. The high level of genetic differentiation within B. nana populations that were analysed in the present study may be explained by a limited capacity for dispersal among populations via both pollen and seeds. We found that the level of genetic diversity in one of the Polish populations of B. nana is comparable to that in areas in Scandinavia where populations are large and continuous. Based on these studies, we conclude that the “Linje” population has sufficient genetic resources.
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The proposal of a new provisional border of range of the acidophilous oak forest Calamagrostio arundinaceae-Quercetum petraeae Hartm. 1934 Scam. et Pass. 1959 in central Poland
(Committee on Forestry Sciences and Wood Technology of the Polish Academy of Sciences and the Forest Research Institute in Sękocin Stary, 2021-09-15) Zaniewski, Piotr T.; Ciurzycki, Wojciech; Zaniewska, Ewa; Warsaw University of Life Sciences – SGGW, Institute of Forest Sciences, Department of Forest Botany, Warszawa, Poland; Warsaw University of Life Sciences – SGGW, Institute of Horticultural Sciences, Department of Environmental Protection and Dendrology, Warszawa, Poland
The range of acidophilous oak forest from Quercetea robori-petraeae Br-Bl. et Tx. ex Oberd. 1957 in Central Europe depends largely on the syntaxonomical concept used and is still provisional. The most continental association from this class occurring in Poland is Calamagrostio arundinaceae-Quercetum petraeae Hartm. 1934 Scam. et Pass. 1959. It is present in western and central Poland, but its eastern boundary is not well known. The aims of the study were to survey and document new patches of Calamagrostio-Quercetum in central Poland, to check the internal variation of the association and to summary the known distribution of it in lowlands of central-western and central Poland. 23 phytosociological relevés were made within new stands together with soil sampling. New relevé data was subjected to the numerical Wards classification together with acidophilous oak forests datasets from western Poland and oak-pine forests ones from eastern part of the Country. The new dataset was similar to Calamagrostio-Quercetum. Three subassociations were distinguished. Soil parameters and oak site index did not differ from acidophilous oak forest stands from other parts of Poland. The provisional range of Calamagrostio-Quercetum in central Poland was proposed to be moved by circa 60–90 km to the north-east (approximately as far as the Vistula river line) in order to include south-western part of Mazowsze.