Autor: Tkachenko, Oleksandr - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Rozwój kapitału ludzkiego w Europie Centralnej i Wschodniej: analiza trendów i wyzwań dla Estonii, Węgier, Czech i Słowenii
Human capital development in Central and Eastern Europe: An analysis of trends and challenges facing Estonia, Hungary, the Czech Republic and Slovenia
Autorzy:: Tkachenko, Oleksandr
Ardichvili, Alexandre
Powiązania:: https://bibliotekanauki.pl/articles/598432.pdf
Data publikacji:: 2013-12-15
Wydawca:: Instytut Pracy i Spraw Socjalnych
Tematy:: human capital
human capital development education
training
Central and Eastern Europe
Estonia
Hungary
the Czech Republic
Slovenia
HRD
NHRD
kapitał ludzki
rozwój kapitału ludzkiego
edukacja
szkolenia
Europa Centralna i Wschodnia Estonia
Węgry
Czechy
Słowenia
rozwój zasobów ludzkich
krajowy rozwój zasobów ludzkich
Opis:: This paper presents the findings of a comparative study of trends and challenges of human capital development (HCD) in four Central and Eastern European countries (CEECs)—Estonia, Hungary, the Czech Republic, and Slovenia— through the lens of education and training as important predictors of HCD. Analyzing the dynamics of key variables utilized for assessment of human capital, the study reveals the increase of investment in education and in training as a positive trend. At the same time, the decline in students’ performance in math and science, high levels of skill mismatch over the analyzed time period, as well as demographic changes that are characterized by aging and shrinking of the workforce, are found to be barriers to HCD in the four CEECs. Emphasizing the interplay of three systems—education, training, and the labor markets—the study highlights the importance of the systemic approach in the development and implementation of HCD policies. The paper also advocates for the increasing role of HRD (and National HRD, in particular), if such an approach is undertaken.
Niniejszy dokument przedstawia wyniki analizy porównawczej trendów i wyzwań z zakresu rozwoju kapitału ludzkiego (Human Capital Development – HCD) w czterech państwach Europy Środkowo-Wschodniej – w Estonii, na Węgrzech, w Czechach i Słowenii – przez pryzmat edukacji i szkoleń jako ważnych wyznaczników HCD. Analizując dynamikę kluczowych zmiennych używanych w ocenie kapitału ludzkiego, studium pokazuje wzrost inwestycji w edukację i szkolenia jako pozytywny trend. Równocześnie pogorszenie wyników studentów w naukach ścisłych, mocne niedopasowanie w sferze umiejętności w analizowanym okresie, jak również zmiany demograficzne przejawiające się w starzeniu i niedoborze pra¬cowników ukazane są jako bariery dla HCD w czterech wymienionych państwach. Kładąc nacisk na współgranie trzech systemów, tzn. edukacji, szkoleń i rynków pracy, studium podkreśla wagę podejścia systemowego do rozwoju i wdrażania strategii HCD. Podkreślono również rosnącą rolę HRD (Human Resource Development), tu szczególnie krajowego, o ile takie podejście zostanie zastosowane.
Źródło:: Zarządzanie Zasobami Ludzkimi; 2013, 6(95) HRD (Rozwój zasobów ludzkich); 67-88
1641-0874
Pojawia się w:: Zarządzanie Zasobami Ludzkimi
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Antibacterial effects of celandine oil and extracts derived from roots and stalks of greater celandine (Chelidonium majus L.) collected from central Pomeranian region
Właściwości przeciwbakteryjne olejku glistnikowego oraz ekstraktów z korzeni i łodyg glistnika jaskółcze ziele (Chelidonium majus L.) zebranego z północnej części Pomorza
Autorzy:: Stefanowski, Nataniel
Tkachenko, Halina
Kurhaluk, Natalia
Lukash, Oleksandr
Buyun, Lyudmyla
Powiązania:: https://bibliotekanauki.pl/articles/27322958.pdf
Data publikacji:: 2021
Wydawca:: Uniwersytet Pomorski w Słupsku
Tematy:: antibacterial activities
Chelidonium majus L.
Staphylococcus aureus subsp. aureus
Escherichia coli strains
coastal zones
Pomeranian regions
Opis:: A convincing number of studies indicating that alkaloids such as chelidonine and sanguinarine together with other secondary metabolites exhibit potent antibacterial, antifungal, and antiparasitic properties prompted us to examine the antimicrobial efficacy of Chelidonium majus L., a representative of the Papaveraceae family, against Staphylococcus aureus subsp. aureus Rosenbach (ATCC® 29213™) (mecA negative, Oxacillin sensitive, weak β-lactamase producing strain), S. aureus NCTC® 12493™ (mecA positive, Methicillin-resistant, EUCAST QC strain for cefoxitin), Escherichia coli (Migula) Castellani and Chalmers (ATCC® 25922™), E. coli (Migula) Castellani and Chalmers (ATCC® 35218™). In the current work, we decided to evaluate the antimicrobial efficacy of ethanolic extracts derived from stalks and roots of C. majus, as well as commercial 100% natural fatty celandine oil (Botanica, Russia) against different S. aureus and E. coli strains. Fresh stalks and roots were washed, weighed, crushed, and homogenized in 96% ethanol (in proportion of 1:19, w/w) at room temperature. The extracts were then filtered and investigated for their antimicrobial activity. Antimicrobial activity was determined using the agar disk diffusion assay. The extracts obtained from roots and stalks of C. majus and commercial natural fatty celandine oil exhibited different antibacterial activities against tested strains. The ethanolic extracts of C. majus revealed weak antibacterial activity against both E. coli (Migula) Castellani and Chalmers (ATCC® 25922™) and E. coli (Migula) Castellani and Chalmers (ATCC® 35218™) strains. The highest antibacterial activity was demonstrated for stalk extracts of C. majus against S. aureus NCTC® 12493™ compared to the control samples. We observed similar trends when measuring the zones of growth inhibition according to S. aureus subsp. aureus Rosenbach (ATCC® 29213™) strain. Since the antimicrobial efficacy of medicinal plants varies according to the accumulation of secondary metabolites (i.e., alkaloids, flavonoids, tannins, etc.), it is not surprising that differences in this efficacy have been noted even using samples taken from the same plant but different parts of the plant (stalks, roots). The antimicrobial activity of crude ethanolic extracts obtained from stalks and roots of greater celandine can be attributed to specific compounds or a combination of compounds. The current study lays the foundation for future research to confirm the potential use of C. majus as a candidate for the treatment of infections caused by S. aureus and E. coli in human and veterinary medicine.
Źródło:: Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2021, 25; 31-44
1643-0115
Pojawia się w:: Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Lipid and protein oxidation in the muscle tissue of rainbow trout after in vitro treatment by extracts derived from greater celandine (Chelidonium majus L.) collected from rural and urban aglomerations of Pomeranian region
Oksydacja lipidów i białek w tkance mięśniowej pstraga tęczowego po inkubacji in vitro z ekstraktami z glistnika jaskółcze ziele (Chelidonium majus L.) zebranego z wiejskich i miejskich terenów Pomorza
Autorzy:: Stefanowski, Nataniel
Tkachenko, Halina
Kurhaluk, Natalia
Lukash, Oleksandr
Aksonov, Ievgenii
Buyun, Lyudmyla
Powiązania:: https://bibliotekanauki.pl/articles/27322952.pdf
Data publikacji:: 2021
Wydawca:: Uniwersytet Pomorski w Słupsku
Tematy:: coastal regions
rainbow trout
muscle tissue
lipid peroxidation
protein damage
total antioxidant capacity
Opis:: Consistent with our previous studies, we continue to evaluate the antioxidant potential of representatives belonging to the Papaveraceae family collected from the coastal region of northern Poland using different cell models, namely the muscle tissue of rainbow trout. Therefore, in the current study, oxidative stress biomarkers [2-thiobarbituric acid reactive substances (TBARS), carbonyl derivatives of oxidative modification of proteins (OMP), total antioxidant capacity (TAC)] were used for evaluating the antioxidant activity of extracts derived from stalks and roots of Chelidonium majus L. (CM) at final dose 2.5 mg/mL. The muscle tissue of rainbow trout (Oncorhynchus mykiss Walbaum) was used in the current study. The supernatant of the muscle tissue was used to incubate with extracts derived from stalks and roots of CM (in a ratio of 39:1, final concentration 2.5 mg/mL) at room temperature. The control samples (muscle tissue) were incubated with 100 mM Tris-HCl buffer (pH 7.2) (in a ratio of 39:1). The results of the current study revealed that extracts derived from stalks and roots of CM exhibited cytotoxic effects on cellular structures of muscle tissue by increasing the level of lipid peroxidation and decreased of the total antioxidant capacity. These results suggest the possibility of using CM extracts at a final dose of 2.5 mg/mL for pro-oxidant effects and warrant further studies to evaluate their therapeutic potential. The levels of aldehydic and ketonic derivatives of OMP were significantly decreased after in vitro incubation with the extracts derived from stalks and roots of CM collected only from rural agglomerations. Screening of plants for other biological activities, including antioxidant activity, is essential and may be effective in the search for preventive measures in the pathogenesis of some diseases, as well as in the prevention and treatment of some disorders in human and veterinary medicine.
Źródło:: Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2021, 25; 45-60
1643-0115
Pojawia się w:: Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
Dostawca treści:: Biblioteka Nauki

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