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Just culture maturity questionnaire validation in a Polish hospital

Wiśniewska Małgorzata, Marjańska Ewa, Grudowski Piotr

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

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2022

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z. 157

649--665

EN

Purpose: (To present the results of the statistical validation of just culture maturity questionnaire (JCMQ), used to recognize the maturity level of JC among nurses in the hospital in Poland. Methodology: (The case study and 5-stage research with the use of a 5-point Likert scale questionnaire with 28 statements, distributed among nurses. The results were statistically processed with Statistica 13.1 software. Findings: We confirmed the reliability of JCMQ what helped to recognize the level of JC maturity as “wisdom”. The improvement actions were proposed. The priority in this respect seems to be education and constant, undistorted communication and knowledge exchange. Originality: To the best knowledge of the authors, this is the first article in Central Europe and Eastern Countries referring to JC maturity assessment in a hospital setting, and addressed to nurses. The results allow indicating the level of JC maturity concerning Ph. Crosby maturity grid.

2

Activated biocarbons obtained from post-fermentation residue as potential adsorbents of organic pollutants from the liquid chase

Nowicki Piotr, Gruszczyńska Karolina, Urban Teresa, Wiśniewska Małgorzata

Physicochemical Problems of Mineral Processing

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2022

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Vol. 58, iss. 2

art. no. 146357

EN

A series of new synthetic carbonaceous adsorbents has been prepared via physical and chemical activation of residue of alcoholic fermentation of corn starch. Two different variants of thermal treatment procedure - microwave and conventional heating have been applied for preparing of the activated biocarbons. All the samples under investigation were characterised by elementary analysis, surface area measurements as well as determination of the number of surface functional groups. The electrokinetic properties of examined materials were studied using potentiometric titration and electrophoresis methods, which enabled determination of the surface charge density and zeta potential of activated biocarbon particles. Moreover, sorption properties of the carbonaceous materials towards two organic dyes - methylene blue and malachite green were tested. The final products were activated biocarbons of medium developed surface area ranging from 21 to 879 m2/g, showing acidic character of the surface and various content of surface functional groups. More favourable textural parameters as well as sorption properties toward both organic dyes were revealed by chemically activated samples. The obtained results indicated also considerable effect of adsorbed dye molecules on the structure of electrical double layer formed at the solid/liquid interface.

3

Wpływ surfaktantów na właściwości adsorpcyjne substancji organicznych i jonów metali ciężkich w układach koloidalnych

Chibowski Stanisław, Wiśniewska Małgorzata

Wiadomości Chemiczne

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2021

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[Z] 75, 9-10

1181--1202

EN

The main purpose of this paper is description of the mechanisms governing the adsorption process of organic substances (such as polymers and dyes soluble in water) and inorganic substances (i.e. heavy metal ions) on the solid surface in the presence of synthetic surfactants of various ionic nature (anionic SDS, cationic CTAB and nonionic Triton X-100). The following polymers were applied: polyacrylamide, poly(ethylene glycol), poly(vinyl alcohol) and poly(acrylic acid). Moreover, the mono-, di- and triazo dyes with acidic, reactive and direct characters were used. Metal oxides – both simple (alumina, zirconia, titania) and mixed (double: silica-alumina, silica-titania and triple: alumina-silica-titania), as well as activated carbons obtained from biomass and peat were applied in the role of adsorbents. The effects of solution pH, ionic character of adsorbate, its molecular weight, elemental composition of the solid, its acid-base properties and textural structure, were determined. The understanding of the phenomena occuring at this type of interface is extremaly important for the effective control of colloidal suspensions stability, which is essential for practical applications. The formation of mixed adsorption layers composed of polymer-surfactant, dye-surfactant or polymer-surfactant-metal ion complexes results in many cases in a significant modification of the surface properties of solids, which is manifested not only by the changes in amount of bound adsorbate, but also by the changes in the structure of electrical double layer. The analysis of the obtained results indicated two main mechanisms of the surfactants influence on the adsorption process of organic and inorganic substances in colloidal systems containing a highly dispersed solid. The first one is the formation of polymer-surfactant, dye-surfactant or polymer-surfactant-metal complexes through both hydrophobic and electrostatic interactions, which show different affinity to the adsorbent surface. In most of the examined systems, these complexes were effectively bound at the solid-liquidinterface, which resulted in the adsorption increase of polymer, dye and heavy metal ions. The second important mechanism is the competition of surfactant molecules and other adsorbates for the active sites of the solid surface (the components of mixed adsorbates had the same ionic character). As a result of these two processes, mixed adsorption layers with a specific structure were formed, which determined the stability of the colloidal suspension.

4

Relacja mistrz – uczeń – w jaki sposób kształtować doskonałość akademicką, na przykładzie postaci prof. dr. hab. inż. Romualda Kolmana

Wiśniewska Małgorzata, Grudowski Piotr

Problemy Jakości

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2021

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R. 53, nr 3

22--26

PL

W niniejszym artykule skoncentrowano się na zagadnieniu fundamentalnym w kontekście edukacji i rozwoju badań naukowych – relacji mistrz – uczeń. W nawiązaniu do wielowiekowej tradycji instytucji akademickich przedstawiono istotę i znaczenie tych relacji, wskazując pożądane cechy mistrza jako osoby kształtującej oczekiwane ze względów społecznych postawy swoich podopiecznych. Jako przykład postaci mistrza w obszarze nauk o jakości zaprezentowano sylwetkę śp. Profesora Romualda Kolmana oraz wspomnienia niektórych z jego wychowanków. W nawiązaniu do obecnej sytuacji w systemie szkolnictwa wyższego i nauki w Polsce autorzy pragną w ten sposób zwrócić uwagę na – ich zdaniem – zdecydowanie niewystarczające, a wręcz pomijane w różnego rodzaju regulacjach, wsparcie tej sfery aktywności akademickiej.

EN

This article focuses on a fundamental issue in the context of education and research development – the master – student relationship. Referring to the centuries-old tradition of academic institutions, the essence and significance of these relations were presented, indicating the desirable features of the master as a person shaping the attitudes of his students desired for social reasons. As an example of such master in the field of quality sciences, the figure of the late Professor Romuald Kolman and the memories of some of his pupils were presented. Referring to the current situation in the system of higher education and science in Poland, the authors would like to draw attention to the fact that, in their opinion, support for this sphere of academic activity is definitely insufficient and even neglected in various regulations.

5

Temperature influence on the electrode process in the presence of 6-thioguanine and surfactants

Nosal-Wiercińska Agnieszka, Kaliszczak Waldemar, Martyna Marlena, Szabelska Anna, Gołębiowska Beata, Wiśniewska Małgorzata

Physicochemical Problems of Mineral Processing

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2020

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Vol. 56, iss. 6

14--21

EN

The measurements concerning the process of the electroreduction of Bi(III) ions in the presence of 6–thioguanine (6TG) and Triton X-100 as well as Tween 80 in the 2 mol·dm-3 chlorates(VII) demonstrate a dependence of the process rate on temperature. The applied electrochemical techniques (DC polarography, cyclic and SWV voltammetry) allowed to determine the kinetic and thermodynamic parameters as well as their correlation with changes in kinetics of the electrode process. The catalytic activity of 6TG was confirmed by the decrease of overall enthalpies of activation. Different values of ∆𝐻# and ∆𝑆° for Bi(III) electroreduction in the presence of 6–thioguanine as well as Triton X-100 and Tween 80 suggest changes in kinetics of the electrode process towards inhibition.

6

Electrokinetic properties of silica-titania mixed oxide particles dispersed in aqueous solution of C.I. Direct Yellow 142 dye – effects of surfactant and electrolyte presence

Chibowski Stanisław, Wiśniewska Małgorzata, Wawrzkiewicz Monika, Hubicki Zbigniew, Goncharuk Olena

Physicochemical Problems of Mineral Processing

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2020

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Vol. 56, iss. 6

6--13

EN

The mixed SiO2-TiO2 oxide obtained by the pyrogenic method with the silica:titanium percentage ratio equal to 20:80 (ST80) was used in the experiments. The influence of azo dye C.I. Direct Yellow 142 (DY) adsorption at the mixed oxide-solution interface on the electrokinetic properties of solid particles was studied. To determine solid surface charge density and zeta potential of examined suspensions the potentiometric titration and Doppler laser electrophoresis techniques were applied. The changes in structure of electrical double layer formed on the mixed oxide surface in the dye presence were specified as a function of DY concentration, inorganic salt addition and surfactant introduction. The effects of surfactant type and its concentration were determined. Three surfactants of different ionic character (anionic SDS, cationic CTAB and nonionic Triton X-100) were used in measurements. The obtained electrokinetic characteristics of ST80 mixed oxide dispersed in aqueous solutions with various adsorbate compositions is essential for such suspensions stability.

7

Alumina-silica-titania adsorbent for hazardous azo and phtalocyanine dyes removal from textile baths and wastewaters – the impact of ionic surfactants

Wiśniewska Małgorzata, Wrzesińska Katarzyna, Wawrzkiewicz Monika, Chibowski Stanisław, Urban Teresa, Goncharuk Olena, Gun’ko Vladimir M.

Physicochemical Problems of Mineral Processing

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2020

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Vol. 56, iss. 6

178--193

EN

Two aspects of interfacial phenomena were discussed in the manuscript. The first one concerns the adsorptive removal of two azo dyes such as C.I. Acid Yellow 219 (AY219) and C.I. Direct Yellow 142 (DY142) as well as the phtalocyanine C.I. Reactive Blue 21 (RB21) on the alumina silicatitania oxide (4% wt. Al2O3 – 8% wt. SiO2 – 88% wt. TiO2; AST88) in the ionic surfactants presence. The second one deals with the determination of interaction mechanism in the dyes-AST88, dyes-surfactant-AST88 systems using the data obtained from the surface charge density and zeta potential studies. The sodium dodecyl sulphate (SDS) with anionic character and hexadecyltrimethylammonium bromide (CTAB) with cationic ones were used. The adsorption capacities of 205.2 mg/g for AY219, 36.5 mg/g for RB21 and 18 mg/g for DY142. The potentiometric titration and Doppler laser electrophoresis methods enable determination of sign and magnitude of charge located in both the surface and the slipping plane layers around the solid particles. The structure of electrical double layer was determined in the AST88 systems without as well as with dyes and with mixed dye + surfactant adsorbates.

8

Adsorption and electrokinetic studies of sodalite/lithium/poly(acrylic acid) aqueous system

Wiśniewska Małgorzata, Franus Wojciech, Fijałkowska Gracja, Ostolska Iwona, Wójcik Grzegorz, Nosal-Wiercińska Agnieszka, Gościańska Joanna

Physicochemical Problems of Mineral Processing

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2020

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Vol. 56, iss. 6

158--166

EN

The synthetic zeolite-sodalite obtained by the hydrothermal conversion of fly ash with aqueous sodium hydroxide was used in the experiments. Its adsorption properties in relation to lithium ions were examined. The effects of: solution pH, presence of polymeric substance – poly(acrylic acid) and order of individual adsorbates addition were determined. To specify the binding mechanism of lithium ions on the sodalite surface, besides adsorption experiments, the measurements leading to the solid surface charge density and zeta potential determination, were performed. As a result, the structure of mixed adsorption layer composed of polymer+metal complexes was characterized. The presented study concerns two important issues: management of environmentally harmful wastes such as coal combustion products as well as searching for new sources of lithium and effective methods of its acquisition.

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The structure of electrical double layer formed on the kaolinite surface in the mixed system of cationic polyacrylamide and lead (II) ions

Fijałkowska Gracja, Wiśniewska Małgorzata, Szewczuk-Karpisz Katarzyna

Physicochemical Problems of Mineral Processing

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2019

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Vol. 55, iss. 6

1339--1349

EN

The bioavailability of toxic heavy metalsfor organisms depends mainly on the soil physicochemical properties, i.e. type and granulometric composition, pH value, redox potential, individual fractions content and microorganisms presence. The addition of artificial fertilizers rich in humic substances or polyacrylamide soil flocculants may also affect the content of easily absorbed heavy metal forms. Due to their chelating properties, the added substances can bind metal ions in the form of complexes characterized by low mobility in soil environment. As a consequence, the immobilization process takes place, which is a desirable phenomenon for organism health.The aim of the study was to determine the structure of electrical double layer formed on the kaolinite surface in the mixed system of cationic polyacrylamide and lead(II) cations. The influence of cationic PAM presence on the Pb(II) ions sorption on the kaolinite surface as well as heavy metal ion addition on the polymer adsorbed amount on the same clay mineral were studied. The adsorption and electrokinetic properties of studied kaolinite/CT PAM/Pb(II) systems were determined based on the spectrophotometric study, zeta potential measurements as well as potentiometric titration.