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Wyświetlanie 1-2 z 2
Tytuł:
Innovativeness of Polish Economy in the Transitional Stage of Development
Autorzy:
Kotowicz-Jawor, Joanna
Pietrewicz, Lesław
Zajfert, Michał
Mączyńska, Elżbieta
Baczko, Tadeusz
Puchała-Krzywina, Ewa
Grzelońska, Urszula
Okoń-Horodyńska, Ewa
Piotrowicz, Krystyna
Powiązania:
https://bibliotekanauki.pl/books/28410596.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Opis:
A research question that has not been satisfactorily answered in the relevant literature is what are the reasons for low efficiency of EU-funded public support programs dedicated to increasing innovativeness of Polish enterprises. The aim of the study undertaken by the team of researchers at the Institute of Economics, Polish Academy of Sciences is to establish interrelationships between the current stage of development of the Polish economy and determinants of its innovative capacity in the context of absorption of EU structural funds. The first part of study sets the conceptual background in the area of stages of economic development. The conceptual study is complemented by the quantitative analysis of the current stage of development of the Polish economy. The second and the third chapters presents major exogenous barriers to the growth of innovativeness of the Polish economy, and endogenous obstacles to effective transition of the Polish economy. Another parts concerns the demand-side determinants of innovation processes during the transition between the investment-driven and innovation-driven stage of economic development. Next part presents the evolution of theories of innovation, scrutinizes the adaptation of analyzed firms to the conditions of the transitory stage of economic development. The final part of the book is devoted to the role of the science sector in the process of transition of the Polish economy to the innovation-driven stage of development. The study presents a number of recommendations for economic policy directed at increasing the pace of the innovation process.
Dostawca treści:
Biblioteka Nauki
Książka
Tytuł:
Zastosowanie chromatografii cienkowarstwowej do oznaczania spoiw olejnych
THE USE OF THIN-LAYER CHROMATOGRAPHY IN THE DETERMINATION OF OIL BLNDERS
Autorzy:
Baczko, Krystyna
Powiązania:
https://bibliotekanauki.pl/articles/535766.pdf
Data publikacji:
1981
Wydawca:
Narodowy Instytut Dziedzictwa
Tematy:
zastosowanie chromatografii cienkowarstwowej do oznaczania spoiw olejnych
chromatografia cienkowarstwowa
identyfikacja spoiw malarskich
identyfikacja spoiw olejnych
analiza chromatograficzna cienkowarstwowa w badaniu spoiw białkowych i węglowodanowych
skład i budowa chemiczna spoiw olejnych
spoiwa olejne
analiza jakościowa olejów
Opis:
The present work made at a scientific-research laboratory of the State Enterprise for Conservation of Art was aimed at identifying oil binders by means of thin-layer chromatographic analysis. The work presented a survey of techniques employed in the determination of lipids by means of chromatographic analysis on the painted material. The procedure o f the identification of oil binders was worked out on this basis, which made it possible to implement it in conservation practices. Samples o f oils such as linseed oil (cold-pressed), poppy-seed oil (sun-dried, made by Winsor-Newton) and oil coming from the egg yolk were hydrolyzed in the solution o f KOH in methanol at room temperature. After neutralizing, the samples were extracted with chloroform. Solutions of individual oils were then put on chromatograms. Silicon gel (Kieselgel 60) was used as an adsorbent. Gel- covered glass plates (20 x 20 cm or 20 x 50 cm in size, made by Merck), were activated thermically. A number of developing systems were examined, out of which naptha oil: ethyl ether: acetic acid (80:20:1) was considered as optimum. Iodine pairs associated with sulfuric acid proved to be the best developer. The sensitivity of such a methodical procedure was defined at 10~4 g. Basing on the results of the studies, the above procedure was used for painting techniques containing oil binders: non-yellowing medium, traditional medium, oil-casein distemper, yolk distemper, distemper with arabie gum. The effect of various siccatives and inhibiting (cinnabar) and catalyzing (white lead) agents on the results o f determinations was studied in the process o f drying after prior artificial aging of samples. The method obtained makes possible to distinguish the oil technique from yolk and oil-resin techniques.
Źródło:
Ochrona Zabytków; 1981, 1-2; 86-92
0029-8247
Pojawia się w:
Ochrona Zabytków
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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