Publications by authors named "K Stachowiak"
The paper presents an analysis of the filler's effect on the machining process and on changes in the thermomechanical properties of polymer composites based on aluminum chips. Composite research samples with a polymer matrix in the form of polyamide 6 were made by the pressing method. Comparative studies were carried out on the changes in thermomechanical properties and structure of the obtained molders with different filler contents and different fractions after the machining process.
View Article and Find Full Text PDFA binary system of uridine-5'-diphosphoglucuronic acid with copper (II) ions was studied. Potentiometric studies in aqueous solutions using computer data analysis were carried out. The pH of dominance, the overall stability constants (log), and the equilibrium constants of the formation reaction (log) were determined for each complex compound formed in the studied system.
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- Nine soluble ligands, including interleukin-6 (IL-6) and interleukin-11 (IL-11), share the glycoprotein-130 (gp130) receptor, forming the IL-6 family of cytokines.
- Several members of this family, such as cardiotrophin-1 (CT-1) and leukemia inhibitory factor (LIF), may play key roles in cancer development.
- Understanding these cytokines and their pathways could lead to targeted therapies that either inhibit or enhance their activity, potentially improving cancer treatment outcomes.
Article Synopsis
- The study examined how α-hydroxy acids like L-Tartaric acid and L-Malic acid form complexes with d-electron metal ions (copper, cobalt, nickel) in aqueous solutions.
- Potentiometric measurements and computer analysis were used to determine the stability constants of these complexes.
- Spectroscopic methods (EPR, UV-Vis, CD, IR) revealed that dimers form with copper(II) ions while monomers form with cobalt(II) and nickel(II) ions.
The influence of pH on the complex formation of phosphoethanolamine and pyrimidine nucleosides (uridine, cytidine and thymidine) with copper(II) ions was studied. All investigations were performed in aqueous solution. The overall stability constants of the complexes and non-covalent compounds were obtained using the potentiometric method with computer calculation of the data.
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