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Search: authors:"Jacek Różański"

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Effect of the degree of substitution on the rheology of sodium carboxymethylcellulose solutions in propylene glycol/water mixtures

The linear dynamic viscoelastic properties and non-linear transient rheology of sodium carboxymethylcellulose solutions (Na-CMC) in propylene glycol/water mixtures were investigated. Measurements were carried out for the solutions of Na-CMC with three different degrees of substitution (DS), namely 0.62, 0.79, 1.04, and the similar average molecular weight (Mw ≈ 250,000 g/mol). The ...

The Concentration of Vanadium in Pathologically Altered Human Kidneys

Vanadium has a unique and beneficial effect on both humans and animal organisms; however, excessive amount of the above-mentioned metal can cause many alterations in tissues and organs, including the kidneys. The aim of the study was to determine the concentration of vanadium (V) in the kidneys removed from patients due to lesions of various etiologies, including the rejection of ...

Case report on successful ‘bail out’ aortic homograft implantation in a 81-year old woman with aortic ring rupture after double TAVI procedure

A 81-year woman was admitted to our institution due to worsening chronic heart failure. The patient presented herself with severe aortic valve stenosis and mitral valve insufficiency. Due to estimated high operative risk a TAVI approach was chosen. Following the fist TAVI implantation (Sapien XT™ 26 mm) a big paravalvular leakage was diagnosed. Hence, in order to close the ...