Autor: Kalinowska, Elżbieta - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: An improved method for RNA isolation from plants using commercial extraction kits
Autorzy:: Kalinowska, Elżbieta
Chodorska, Maria
Paduch-Cichal, Elżbieta
Mroczkowska, Karolina
Powiązania:: https://bibliotekanauki.pl/articles/1039717.pdf
Data publikacji:: 2012
Wydawca:: Polskie Towarzystwo Biochemiczne
Tematy:: total RNA
secondary metabolites
Opis:: Isolation of RNA from plants rich in secondary metabolites using commercial kits often results in contaminated preparations which are not suitable for downstream applications. Although many specific protocols appropriate for plants with a high content of phenolics, anthocyanins and polysaccharides have been developed, these are often expensive, time consuming and not applicable to different types of tissues. This study presents a simple and efficient modification of RNA extraction from different types of tissues using two commercial reagent kits. By simple improvement, we routinely obtained high-quality RNA of the following plants: the blackcurrant bush, black chokeberry bush, pear tree, apricot tree, apple tree, hardy kiwi, tangerine tree, highbush blueberry and cranberry plant.
Źródło:: Acta Biochimica Polonica; 2012, 59, 3; 391-393
0001-527X
Pojawia się w:: Acta Biochimica Polonica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Metallographic Comparison of Copper and Brass Plasma Reactor Electrodes After a Month of Operation
Autorzy:: Gnapowski, Sebastian
Kalinowska-Ozgowicz, Elżbieta
Pietraszek, Aleksandra
Powiązania:: https://bibliotekanauki.pl/articles/101912.pdf
Data publikacji:: 2019
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: copper
Cu-Zn-Pb
raids layers
metals
electrodes
ozone
plasma reactor
miedź
warstwy powłok
metale
elektrody
ozon
reaktor plazmowy
Opis:: Many researchers from around the world are looking for better and cheaper means of ozone production. One of the methods of increasing the efficiency of ozone production is the use of a rotating electrode presented in this paper. Experiments were carried out which showed that the most important parameters are the materials used in the electrodes and the condition of their surface. The metallographic investigations of the electrodes after continuous work for a month were made, which show how the raids layers are formed. As a result of working in a highly oxidizing environment, the electrode is oxidized in a process of chemical corrosion. It is obvious that the layer of corrosion products created during the work of the plasma reactor isolates the surface of the electrode, which reduces the intensity of the electric field, causing a decrease in the amount of plasma generated, which reduces the concentration of ozone during this process. The dynamics of the plasma generation process and the type of electrode material working in changing process conditions are the decisive factors influencing the concentration of ozone produced. The influence of the medium, which is the electrode material, depends mainly on its resistance to corrosion in the environment of dynamically changing conditions, e.g. electrode rotation, oxygen flow through the rotating electric field and the month-long working time of the plasma reactor.
Źródło:: Advances in Science and Technology. Research Journal; 2019, 13, 3; 201-209
2299-8624
Pojawia się w:: Advances in Science and Technology. Research Journal
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The Effects of Hot Deformation Parameters on the Size of Dynamically Recrystallized Austenite Grains of HSLA Steel
Autorzy:: Gnapowski, Sebastian
Opiela, Marek
Kalinowska-Ozgowicz, Elżbieta
Szulżyk-Cieplak, Joanna
Powiązania:: https://bibliotekanauki.pl/articles/102621.pdf
Data publikacji:: 2020
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: HSLA steel
dynamic recrystallization
austenite grain
plastic strain
Gleeble simulator
stal HSLA
dynamiczna rekrystalizacja
ziarno austenitu
odkształcenie plastyczne
symulator Gleeble
Opis:: Materials scientists are seeking to produce metals with reduced weight and dimensions while maintaining the appropriate mechanical properties. There are several ways to improve the internal structure of metals, such as the ultrasound used to solidify liquid metal. The homogeneity of the grains and the uniformity of the metal structure affects its mechanical strength. This paper presents the results of investigations into the effects of hot deformation parameters in compression on the austenite grain size in the HSLA (High Strength Low Alloy) steel (0.16% C, 0.037% Nb, 0.004% Ti, 0.0098% N). The axisymmetric compression investigations were performed on cylindrical investigation specimens using a Gleeble 3800 thermomechanical simulator with the strain rate of 1÷15.9 s-1 and strain degree ε = 1.2. Before deformation, the research specimens were austenitized at TA = 1100÷1250 °C. The metallographic observations of the primary austenite grains were conducted with an optical microscope, while the structure of dynamically recrystallized austenite, inherited by martensite, was examined by using a scanning electron microscope.
Źródło:: Advances in Science and Technology. Research Journal; 2020, 14, 2; 76-84
2299-8624
Pojawia się w:: Advances in Science and Technology. Research Journal
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Development of small and medium-sized enterprises sector and the use of European Union structural funds in the Radom subregion
Autorzy:: Noworol-Luft, Elżbieta
Kalinowska, Katarzyna
Powiązania:: https://bibliotekanauki.pl/articles/17839681.pdf
Data publikacji:: 2021
Wydawca:: Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:: competitive potential of enterprise
structural funds
economic development
SME sector
Opis:: The aim of the chapter was to analyze the use of European Union structural funds by the sector of small and medium enterprises in the Radom subregion. There was one hypothesis and one research question posed in the study. On the basis of literature studies, as well as the observation of economic reality, the SME sector for the Radom subregion was discussed, as well as the role of European Union structural funds in four programming periods. The theoretical part includes a detailed author's questionnaire containing fifteen variables relating to the effects of implementing projects co-financed by EU funds on a group of 100 companies in the SME sector of the Radom subregion. The paper contains results for a group of a national study conducted in September 2021 (100 enterprises) that used the method of Computer-Assisted Telephone Interview (CATI) are presented. The paper contains the author?s original research into a representative group of SME?s enterprises that can be generalised to the entire population.
Źródło:: Central European Review of Economics & Finance; 2021, 35, 4; 15-28
2082-8500
2083-4314
Pojawia się w:: Central European Review of Economics & Finance
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Biodegradation of 3,5-dinitrosalicylic acid by Phanerochaete chrysosporium
Autorzy:: Madaj, Rafał
Kalinowska, Halina
Sroczyński, Witold
Szeląg, Jakub
Sobiecka, Elżbieta
Powiązania:: https://bibliotekanauki.pl/articles/764850.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:: nitroaromatic compounds
white-rot fungi
fungal biodegradation
Opis:: Związki nitrowe to szeroka grupa ksenobiotyków, które ze względu na swoją silną toksyczność, wyjątkową odporność na rozkład biologiczny oraz skłonność do bioakumulacji, stanowią bardzo poważny problem dla biosfery. Prowadzi się obecnie wiele badań nad mikroorganizmami, które zdołały wykształcić szlaki metaboliczne pozwalające na rozkład takich związków jak 2,4,6-trinitrotoluen, kwas pikrynowy czy kwas 3,5-dinitrosalicylowy. Jednym z takich mikroorganizmów jest podstawczak Phanerochaete chrysosporium, należący do grupy grzybów białej zgnilizny drewna. Artykuł ten poświęcony jest badaniom nad rozkładem kwasu 3,5-dinitrosalicylowego przez P. chrysosporium w warunkach hodowli stacjonarnej w pożywce zawierającej 0,05–0,5% masowego kwasu 3,5-dinitrosalicylowego. Uzyskane wyniki wskazują na zdolność wybranego mikroorganizmu do rozkładu substratu na drodze redukcji grup nitrowych.
Despite intensive efforts put on prevention of environment pollution by nitroaromatic compounds, these xenobiotics have not been eliminated from the biosphere. The physicochemical properties make nitroaromatics extremely recalcitrant to biodegradation. Therefore, microbial degraders of these pollutants are sought after. This paper reports preliminary results of the study on degradation of 3,5-dinitrosalicylic acid (DNS) by a basidiomycetous fungus Phanerochaete chrysosporium under stationary conditions in a culture medium containing 0.05–0.5% v/v of DNS. The results obtained suggest that the fungus degrades DNS through the reductive pathway.
Źródło:: Acta Universitatis Lodziensis. Folia Biologica et Oecologica; 2018, 14; 14-22
1730-2366
2083-8484
Pojawia się w:: Acta Universitatis Lodziensis. Folia Biologica et Oecologica
Dostawca treści:: Biblioteka Nauki

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