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1

Interactions between river catchments and the coast-al zone: the EuroCat-VisCat project

100%
Buszewski B., Kowalska J., Pacyna J., Kot A., Namiesnik J.
Oceanological Studies
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2002
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vol. 31
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issue 1-2
107-116
EN
The overall aim of the EuroCat Project is to develop a quantifiable framework of analysis for improved planning and management of catchments by analyzing the response of coastal zones of the North, Mediterranean and Baltic Sea, to changes in fluxes of nutrients, organic and inorganic xenobiotic compounds from the European rivers and their catchments (Axios, Elbe, Humber, Po, Rhine and Vistula). These changes are a consequence of introduction a new legal regulations, schemes and socio-economic conditions in the areas of countries where these catchments are located. The scale of these changes is also dependent on biogeochemical and physical properties of the catchment and they are carried from the local to global scale. The specific goal of the VisCat program is to create a system which will be used to evaluate the environmental impacts on the Vistula river catchment and the Baltic Sea due to the change from the central economy to the market economy in Eastern and Central Europe (VisCat). The primary issue of this program is also to assess the influence of the run-off reservoir in Wloclawek (Wloclawek dam), sewage-treatment plant in Torun and Vistula river?s tributaries on reduction of sediments, plankton and other pollutants in the Vistula river. Next the impact of these local changes on the global state will be studied. Another aspect of this study area within the EuroCat-VisCat program will be estimation of socio-economic changes such as: adapting the Polish law concerning management of water resources, state, regional and local programs of activity in this area and human influence on the water and ecosystem of the Vistula catchment and the Baltic coastal zone (tourism, agriculture, industry etc.) related to directives of the European Union. Next all these results will be referred to the global situation in the whole of Europe to make a prognosis of the state and behaviour of river catchments and coastal zones in the future.
2

Hydrological and hydrodynamic processes ion marine part of Vistula estuary: in situ measurements versus mathematical modelling

100%
Matciak M., Nowacki J., Robakiewicz M.
Oceanological Studies
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1997
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vol. 26
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issue 4
161-174
EN
Hydrological and hydrodynamic processes in Vistula estuary monitored in situ and their repre-sentation by numerical model are presented. The modelled distributions of salinity and tempera-ture from the 22nd September 1995 show acceptable agreement with measurements. Results of hydrodynamic model support observations showing the spreading of fresh water along the Gulf of Gdansk shore.
3

Computational modeling of the bacterial 70S ribosome and its subunits

100%
Trylska J.
Biotechnologia
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2009
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issue 1
36-47
EN
The computational modeling studies performed on the entire 70S bacterial ribosome and its subunits are reviewed. Computational approaches became possible with the availability of three-dimensional atomic resolution structures of the ribosomal subunits. However, due to enormous size of the system theoretical efforts to study the ribosome are few and still pose a great challenge. For example, to extend the simulation time scales to biologically relevant ones, often reduced models requiring tedious parameterization procedures need to be applied. So far modeling of the ribosome involved its electrostatic properties, internal dynamics, binding of antibiotics, polypeptide folding in the ribosome tunnel, and assembly paths of proteins in the small ribosomal subunit.
4

Modelling the material uptake and deposition of the Mytilus edulis in the Baltic coastal ecosystem

100%
Zemlys P., Daunys D., Razinkovas A.
Oceanological and Hydrobiological Studies
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2003
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issue 2
53-80
EN
A model was developed to describe the material uptake and biodeposition of bivalve Mytilus edulis. The existing blue mussel organism level models are based on contradictory assumptions and no agreement has still been found regarding the processes and environmental factors to be included into the model. A reconciliation of contradictory approaches was successfully done in the present model. Using seston concentration, seston organic content and mussel size as input data, the model is able to predict the uptake of suspended material, selection of organic particles and material allocation as pseudofaeces, ingested, assimilated fractions and faeces. The results of the model application to mussels in the south-eastern Baltic conditions are discussed.
5

Bioprocess engineering

100%
Szewczyk K. W.
Biotechnologia
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2002
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issue 4
9-22
EN
The role, basic concepts and development of bioprocess engineering have been presented. Biochemical engineers have always served as a bridge between discoveries involving enzymes, cells and biomass at the lab scale to implementation of valuable bioproducts on the commercial scale. Biochemical engineering discipline was initiated focusing on problems concerning bioreactor design and the optimisation and the purification of natural products. Nowadays, this discipline is a field undergoing a rapid change and diversification. Key concepts in transport phenomena, kinetics and thermodynamics, as well as proficiency in the application of mathematical tools in process modelling are used to bridge the gap between the intellectual potential of the gene to the manufacturing of industrial products.
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