Search results for: Karol Wolski

Items from 1 to 19 out of 19 results

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Analiza przyrodnicza nowo powstałej zieleni dróg i autostrad

Karol Wolski

Magazyn Autostrady > 2022 > Nr 2 > 46--49

W artykule przedstawiono analizę przyrodniczą nowo powstałej zieleni dróg i autostrad w Polsce, zakładanej w latach ok. 2000-2020. Opracowanie to ma charakter praktyczno-merytoryczny i poglądowy. Podano również wieloletnie wskazania pielęgnacyjne.

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Transcriptome analysis of human Leydig cell tumours reveals potential mechanisms underlying its development

Malgorzata Kotula‐Balak, Michal Duliban, Artur Gurgul, Izabela Krakowska, more

Andrologia > 53 > 11 > n/a - n/a

Leydig cell tumours are the most common sex cord—stromal tumours. In the last years, apparent increased incidence is noted while aetiology of the tumour is still unknown. Therefore, here, we focused on the genetics of Leydig cell tumours using the next‐generation sequencing. Leydig cell micronodules were revealed in patients with azoospermia who were qualified for testicular biopsy. Complete gene...

article

Color assessment of selected lawn grass mixtures

Karol Wolski, Jarosław Czarnecki, Marek Brennensthul, Weronika Ptak

Grassland Science > 67 > 3 > 198 - 206

The three‐year experiment dealt with 12 lawn grass mixtures with different composition of species and varieties. Two sowing rates were applied: N1‐25 g/m² and N2‐35 g/m². Lawn colors were assessed in spring, summer and autumn with the visual method, with a 1–9 scale assigning a score to each plot of grass according to the Royal Horticultural Society Colour Chart. It was found that in the spring the...

article

Biostimulants and possibilities of their usage in grassland

Marta Talar‐Krasa, Karol Wolski, Magdalena Biernacik

Grassland Science > 65 > 4 > 205 - 209

Currently, in addition to a wide range of lawn fertilizers on the market, there are new biological products available called biostimulants, fostering plant growth and development. They are based on substances of natural origin, containing plant extracts, hormones or humic substances. Biostimulants exert a positive impact on grass metabolism, stimulating life processes and reducing negative effects...

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Tannic Acid‐Inspired Star‐Like Macromolecules via Temporally Controlled Multi‐Step Potential Electrolysis

Izabela Zaborniak, Paweł Chmielarz, Karol Wolski, Gabriela Grzes´, more

Macromolecular Chemistry and Physics > 220 > 13 > n/a - n/a

Inspired by tea stains, a plant polyphenolic‐based macroinitiator is prepared for the first time by partial modification of tannic acid (TA) with 2‐bromoisobutyryl bromide. In accordance with the “grafting from” methodology, a naturally occurring star‐like polymer with a polar gallotannin core and a hydrophobic poly(n‐butyl acrylate) side arms is synthesized via a simplified electrochemically mediated...

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Dexamethasone-containing bioactive dressing for possible application in post-operative keloid therapy

Agnieszka Rojewska, Anna Karewicz, Marta Baster, Mateusz Zając, more

Cellulose > 2019 > 26 > 3 > 1895-1908

Bioactive dressing based on bacterial cellulose modified with carboxymethyl groups (mBC) was successfully prepared and studied. The surface of mBC was activated using carbodiimide chemistry and decorated with alginate/hydroxypropyl cellulose submicroparticles containing dexamethasone phosphate (DEX-P). Prior to their deposition particles were coated with chitosan in order to facilitate their binding...

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Assessment of quality of life in patients surgically treated for penile cancer: Impact of aggressiveness in surgery

Roman Sosnowski, Jan Karol Wolski, Marta Kulpa, Urszula Ziętalewicz, more

European Journal of Oncology Nursing > 2017 > 31 > C > 1-5

Health-related quality of life (HRQoL) evaluations are being increasingly used for clinical assessment of cancer treatment outcomes. For a patient, not only is life expectancy important, but also a general sense of sustained global health. Intuitively, the more disfiguring the treatment, the more pronounced could be the deterioration in the QoL. We aimed to compare various aspects of QoL in three...

article

Modified bionanocellulose for bioactive wound-healing dressing

Agnieszka Rojewska, Anna Karewicz, Karolina Boczkaja, Karol Wolski, more

European Polymer Journal > 2017 > 96 > C > 200-209

Novel system based on bionanocellulose modified with carboxymethyl groups (mBNC) and covalently attached hydrogel submicron particles with encapsulated curcumin was prepared and its usefulness for the preparation of bioactive wound dressing materials was demonstrated. In order to obtain a well-controlled delivery system, curcumin was first encapsulated in Pluronic^® P103 micelles and subsequently entrapped...

article

Photoactive Surface‐Grafted Polymer Brushes with Phthalocyanine Bridging Groups as an Advanced Architecture for Light‐Harvesting

Michał Szuwarzyński, Karol Wolski, Agata Pomorska, Tomasz Uchacz, more

Chemistry – A European Journal > 23 > 47 > 11239 - 11243

Surface‐grafted polymer brushes of novel ladder‐like architecture were proposed for inducing ordering of chromophores embedded therein. The brushes with acetylene side groups were obtained by surface‐initiated photoiniferter‐mediated polymerization. The acetylene moieties reacted then through a “click” process with an axially azide‐bifunctionalized silicon phthalocyanine bridging the neighboring chains...

article

Biopolymeric nano/microspheres for selective and reversible adsorption of coronaviruses

Justyna Ciejka, Karol Wolski, Maria Nowakowska, Krzysztof Pyrc, more

Materials Science and Engineering: C > 2017 > 76 > C > 735-742

A novel biopolymeric material in the form of nano/microspheres was developed which was capable of adsorbing coronaviruses. The biopolymer was obtained by crosslinking of chitosan (CHIT) with genipin, a nontoxic compound of plant origin, in inverted emulsion and reacting the chitosan nano/microspheres obtained (CHIT-NS/MS) with glycidyltrimethyl-ammonium chloride (GTMAC). As a result the nano/microspheres...

article

Effect of functional groups on the thermal degradation of phosphorus- and phosphorus/nitrogen-containing functional polymers

Rasim Alosmanov, Karol Wolski, Georg Matuschek, Abel Magerramov, more

Journal of Thermal Analysis and Calorimetry > 2017 > 130 > 2 > 799-812

In the present study the thermal behavior of phosphorus- and phosphorus/nitrogen-containing functional polymers was studied. The polymers were synthesized via oxidative chlorophosphorylation reaction of butadiene rubber and were subsequently subjected to hydrolysis, aminolysis and/or alcoholysis in order to introduce appropriate functionalities. The successful modifications of the polymer and presences...

article

Grafting of thermosensitive poly(N-isopropylacrylamide) from wet bacterial cellulose sheets to improve its swelling-drying ability

Rasim Alosmanov, Karol Wolski, Szczepan Zapotoczny

Cellulose > 2017 > 24 > 1 > 285-293

Thermoresponsive poly(N-isopropylacrylamide) (PNIPAM) is grafted from wet bacterial cellulose (WBC) sheets using atom transfer radical polymerization (ATRP). WBC is recognized as a highly swollen biocompatible material with broad application potential. However, native WBC undergoes drying relatively fast and its reswelling ability diminishes after losing a substantial amount of water. In this work...

article

FISH and array CGH characterization of de novo derivative Y chromosome (Yq duplication and partial Yp deletion) in an azoospermic male

Ewa Wiland, Alexander N. Yatsenko, Archana Kishore, Halina Stanczak, more

Reproductive BioMedicine Online > 2015 > 31 > 2 > 217-224

This study presents a 28-year-old infertile male who was referred to the cytogenetic laboratory for chromosomal analysis after 4 years of regular unprotected intercourse in whom non-obstructive azoospermia was revealed. Standard cytogenetic G-banding was performed on metaphase spreads and a de-novo karyotype 46,X,der(Y)(q11.22;p11.3) was identified. This analysis was followed by flourescence in-situ...

article

Ordered photo- and electroactive thin polymer layers

Karol Wolski, Michał Szuwarzyński, Maciej Kopeć, Szczepan Zapotoczny

European Polymer Journal > 2015 > 65 > Complete > 155-170

Photo- and electroactive nanometer scale thin films are of growing importance in applications related to solar energy conversion. Properly ordered surface-tethered polymer layers may mimic performance of natural photosynthetic systems serving as platforms for light harvesting, directional energy and electron transfer in confined environments. Herein we review selected polymer photo- and electroactive...

article

How to effectively promote universities and research institutes in the network? Psychological mechanisms of e-marketing effectiveness.

Karol Wolski

Marketing Instytucji Naukowych i Badawczych > 2015 > 2(16) > 67-90

Universities and research institutes more and more often resort to promotion tools up till now used mainly in business. Omnipresent market competition has reached also the area of science, where more and more often the fight for students and money for scientific research takes place. Competition among science institutions is additionally stimulated by demographic factors – the gradual aging of the...

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Modele wyjaśniające zachowania użytkowników internetu

Barbara Szmigielska, Karol Wolski, Aleksandra Jaszczak

e-mentor > 2012 > 3 (45) > 17-24

The aim of the review presented in the article is to show that the theories derived from a current research on information systems are powerful and predictive models that work well explaining different activities on the Internet. The paper first presents the theory of planned action by Ajzen (1985), technology acceptance model by Davis (1986) and the unified theory of acceptance and use of technology...

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HOW TO ARISE INTERNAL MOTIVATION FOR USING E-LEARNING - CLUES FROM THE RESEARCH (Motywacja wewnetrzna oraz chec do korzystania z e-learningu - doniesienie z badan)

Karol Wolski

e-mentor > 2011 > 1 (38) > 43-46

E-learning becomes one of the most popular tools for employees' development in organizations. Despite numerous advantages it offers for employers, it is not trouble-free. One of the greatest obstacles is the lack of participants' motivation for full engagement in e-learning training. The study presented in the article confirms that motivation is a factor of involvement in e-learning. The main aims...

article

Effect of Petrol Fuel Contamination on the Growth of Mature Scots Pine, Pinus sylvestris L., Trees

Tomasz H. Szymura, Magdalena Szymura, Karol Wolski

Bulletin of Environmental Contamination and Toxicology > 2010 > 85 > 1 > 64-66

The radial increment and crown status of mature Scots pine trees growing in polluted and unpolluted sites were compared. In 1996, as a result of some malfunction, unleaded petrol penetrated into the soil next to a plantation. Detailed geological and hydrological studies revealed the route of the spread of contamination and extent of the pollution. The trees growing in polluted sites revealed strong...

article

THE ORGANIZATIONS' METHODS OF DEALING WITH PERSONAL WEB USAGE (Metody radzenia sobie przez organizacje ze zjawiskiem korzystania z internetu w pracy w celach prywatnych) (Analiza czynnikow wplywajacych na konkurencyjnosc przedsiebiorstw)

Karol Wolski

e-mentor > 2010 > 5 (37) > 15-18

The aim of this paper is to analyse the phenomenon of Personal Web Usage (PWU) in the workplace with particular emphasis on the risks to the organizations and the consequences of the PWU. The most common reactions of employers and methods of coping with too frequent PWU are discussed. In the final part of the article practical issues concerning the implementation of acceptable Internet usage policy...

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