Art project to Kiev hills " Fictitious Gallery Expedition " as a unique declaration of freedom of artistic practice

This article is dedicated to analysis of the Kiev artists' art project "Fiction Gallery Expedition" ("FGE"). The purpose of the article is to reveal the essence of understanding the artistic creativity freedom by summarizing the results of art review and by studying existence of objects in society. Relevance of the study is in presentation of poorly studied phenomenon of Kiev artistic sphere of the end of XX and beginning of the ХХI century. Study of the question of creativity freedom will reveal the distinction between bias of the contemporary artist and occasional manifestations of freedom, teetering on the edge of legality. The concept of "artistic freedom" in art has almost always been regulated by certain conditions, starting with the exhibition space and ending with social, moral and ethical laws. In this study, the author finds no limits of creativity determined by the courage, deep intuition of the artistic nature, rational and audacious embodiment of design into the unique landscape of Kiev

CUBE ON ZAMKOVAYA HORA IN KYIV AS A UNIQUE EXOGENOUS OBJECT OF ART

This article analyzes special aspects of the social existence of Station-1 objet d’art, a 108 cm brick cube, on Zamkovaya Hora hill in Kyiv. Created in 2001, this art object is an accumulating visiting center for different social strata, from representatives of informal youth associations to tourists and experts in local history. Transformations of the cube surface are viewed as a range of endless ‘modular combinations’ (Didi-Huberman). Watching people contact with an art object beyond art institutions proves the endlessness of manifestations of both vandalism (destruction) and creativity (poems and texts on the cube planes).

Quantification of the stabilizing effects of cyclodextrins on volatile biocides using spectral methods

This bachelor's thesis deals with monitoring the stability of chlorine dioxide of native and methylated cyclodextrins in the presence of hydrogenating agents. It is believed that using cyclodextrins and carboxymethylcellulose can improve the stability of chlorine dioxide and slow its release from the solution. UV spectroscopy was used to monitor any changes in absorbance over time and to determine the concentration of chlorine dioxide in the solution. When the rate of chlorine dioxide loss from solution was monitored, it was found that the presence of native and permethylated cyclodextrins slowed the loss of chlorine dioxide from solution, with the slowest decomposition observed in the presence of permethylated cyclodextrin. The addition of carboxymethylcellulose to the chlorine dioxide solution slows the rate of chlorine dioxide loss from the open vial the most, by almost three times, compared to ClO2 itself. This study's results can help optimize chlorine dioxide product formulation for various applications and contribute to the development of more stable and effective chlorine dioxide- based products that can be used to control or eliminate harmful microorganisms in different environments. Key words: chlorine dioxide, CDS, cyclodextrins, carboxymethylcellulose, biocides, UV-Vis...Tato bakalářská práce se zabývá sledováním stability a kinetiky rozkladu oxidu chloričitého v roztocích nativních a methylovaných cyklodextrinů v přítomnosti hydrogelačních činidel. Vycházelo se z předpokladu, že použití cyklodextrinů a karboxymethylcelulózy může zlepšit chemickou stabilitu oxidu chloričitého nebo zpomalit jeho uvolňování z roztoku. UV spektroskopie byla použita ke sledování případných změn absorbance v průběhu času a ke stanovení koncentrace oxidu chloričitého v roztoku. Při sledování rychlosti úbytku oxidu chloričitého z roztoku bylo zjištěno, že přítomnost nativního a permethylovaného cyklodextrinu zpomaluje úbytek oxidu chloričitého z roztoku, přičemž nejpomalejší chemický rozklad byl pozorován v přítomnosti permethylovaného cyklodextrinu. Přídavek karboxymethylcelulózy do roztoku oxidu chloričitého zpomaluje rychlost úbytku oxidu chloričitého z otevřené lahvičky nejvíce, téměř třikrát, oproti samotnému ClO2. Výsledky této studie mohou pomoci optimalizovat složení přípravků s oxidem chloričitým pro různé aplikace a přispět k vývoji stabilnějších a účinnějších produktů na bázi oxidu chloričitého, které lze použít ke kontrole nebo likvidaci škodlivých mikroorganismů v různých prostředích. Klíčová slova: oxid chloričitý, CDS, cyklodextriny, karboxymethylcelulóza, biocidy, UV-Vis...Katedra organické chemieDepartment of Organic ChemistryFaculty of SciencePřírodovědecká fakult

Immobilization of antibacterial agents on the surface of cellulose membranes modified with polyglycedylmethacrylate

A new method of glycidylmethacrylate (GMA) radical copolymerization on the surface of commercial cellulose membranes followed by immobilization of synthetic antibiotics on grafted poly(GMA) chains has been developed. Transport and antimicrobial properties of modified membranes have been studied. It has been shown that decreasing of samples permeability is caused by grafting of GMA, and it depends on initiator concentration, duration of reaction and process temperature. Infrared spectrometry and capillary electrophoresis were used to analyze modified samples. Antibacterial properties of membranes modified by nalidixic acid and levofloxacin were studied against gram-negative bacteria E. coli and gram-positive bacteria S. aureus. Higher antibacterial activity of membranes modified by levofloxacin in comparison to those modified by nalidixic acid was shown. Thus, antibacterial activity of membranes modified by 0,5% solutions of antibiotics was 90% for samples with nalidixic acid and 100% for samples with levofloxacin. All samples showed lower antibacterial activity against gram-negative bacteria. The antibacterial activity remained stable for 36 days of membrane operation

The impact of the institutional environment on the shadow economy

This article aims to explore the relationship of the shadow economy with the institutional environment and develop practical recommendations for government policies around the world, and particularly in Russia. The urgency of the issue under research is caused by the existing need to study the shadow economy in order to find ways to reduce its scale and level out its negative externalities. Despite the fact that most of the papers focus on tax burden as a fundamental determinant of the shadow economy, the authors of this article believe that institutional tools can expand the boundaries of research on the content of the shadow economy as an economic category. Statistical analysis of 105 countries with different development levels revealed a stronger correlation between the quality of institutions and the size of the shadow economy than the one between total tax burden and the size of the shadow economy. The findings of this article can be useful in developing state strategies for combating the shadow economy and carrying out economic policies of the state as a whole

Half-timbered houses of the Tudor and Elizabethan periods in Britain

Now half-timbered English houses, upholstered on facades with slanting boards that exhibit architectonics of the framework, and laconically painted in black (brown)-white, are gradually becoming a sign of good taste in the construction of other European countries. However, there are almost no scholars who studied the half-timbered buildings of Britain in Ukraine; however, progressively the fashion for such buildings extends to our country. The article is devoted to the monuments of half-timbered architecture of the late Gothic period (1500-1560s – during the Tudor era (1485-1603) and the Renaissance, the epoch of the Elizabethan style (1558-1603) – the time of the highest prosperity of England. In the specified century, the foundations of folk architecture of Britain were laid, based on the legacy of German Gothic building techniques. Now the traditional half-timbered houses of England, Scotland, Ireland and Wales are not only preserved and protected by law in the UK but also undergo a time of quality renovation and a new fashion boom. In this regard, it is relevant to study their unique artistic-figurative and technological features, as well as the specifics of arranging interiors in such buildings, gradually starting to capture not only the inhabitants of Northern Europe, but also its East