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Rodzina – wspólnota konfliktowych interesów

100%

Poleszczuk J.

Pogranicze. Studia Społeczne

2014

tom 24

13-27

The article presents four perspectives on the family. In the intergenerational perspective a family is an institution of biological and cultural reproduction. Family in the perspective of the life cycle is a dynamically changing structure of “problems to solve” associated with life cycle: socialization, mating, parenting and post reproductive phase. Each phase substantially changes the structure of interests, available resources and the nature of social relationships. Family in the system of social stratification is associated with the distribution of scarce resources. The family as a system of social interaction is a complex dynamic unit which stabilizes the basic structure of the moral code (attitudes of loyalty and trust).

Decyzje edukacyjne maturzystów. Kontekst społeczny i indywidualne postawy młodzieży Białegostoku wobec wykształcenia wyższego

100%

Poleszczuk J.

Pogranicze. Studia Społeczne

2017

tom 31

The aim of the article is to identify attitudes towards higher education of graduates of high schools in Białystok and to identify the individual and social factors influencing these attitudes. The decision-making model presented in the article included the personal preferences, peer groups, teachers and parents as a factors determining the value of higher education, the criteria of study selection and the expectations associated with them. The decision-making process associated with the choice of an educational path has a nature of investment decisions that are highly unpredictable because of delaying desired outcomes. That’s why the decision-making process of graduates of high schools have to be highly social in nature.

Dialysis therapies: Investigation of transport and regulatory processes using mathematical modelling

38%

Pstras L. , Stachowska-Pietka J. , Debowska M. , Pietribiasi M. , Poleszczuk J. , Waniewski J.

Biocybernetics and Biomedical Engineering

2022

tom Vol. 42, no. 1

60--78

Haemodialysis (HD) and peritoneal dialysis (PD) are the main kidney replacement therapies for patients with end-stage renal disease. Both of these life-sustaining therapies replace the key functions of the failing kidneys, i.e. the removal of the excess body water and waste products of metabolism as well as the restoration of fluid-electrolyte and acid-base balance. The dialysis-induced multi-scale transport and regulatory processes are complex and difficult to analyse or predict without the use of mathematical and computational models. Here, following a brief introduction to renal replacement therapies, we present an overview of the most important aspects and challenges of HD and PD, indicating the types and examples of mathematical models that are used to study or optimize these therapies. We discuss various compartmental models used for the study of intra- and interdialytic fluid and solute kinetics as well as distributed models of water and solute transport taking place across the peritoneal tissue or in the dialyzer. We also discuss models related to blood volume changes and cardiovascular stability during HD, including models of the thermal balance, likely related to intradialytic hypotension. A short overview of models of acid-base equilibration during HD and mineral metabolism in dialysis patients is also provided, along with a brief outline of models related to blood flow in arteriovenous fistulas and cardiovascular adaptations following the fistula creation. Finally, we discuss the model-based methods of assessment of dialysis adequacy in both HD and PD.