Zobrazeno 1 - 10
of 98
pro vyhledávání: '"Zbigniew Karpiński"'
Autor:
Alice Bertoletti, Zbigniew Karpiński
Publikováno v:
Large-scale Assessments in Education, Vol 12, Iss 1, Pp 1-8 (2024)
Abstract The Covid-19 pandemic has triggered a rapid and unprecedented transformation of global educational systems. The research community has uncovered important impacts of the pandemic on education worldwide, including detrimental effects on stude
Externí odkaz:
https://doaj.org/article/57808e0330ba47b6a5f379739c1f3cc9
Publikováno v:
Socius, Vol 10 (2024)
The authors present results from a multifactorial survey experiment conducted on a sample of Polish working-age adults querying their evaluations of just pay for men and women. The experiment was designed to investigate whether gender pay gaps are co
Externí odkaz:
https://doaj.org/article/c5f8f9adc0424bcbbf4cdaa1d26ae76a
Publikováno v:
Large-scale Assessments in Education, Vol 11, Iss 1, Pp 1-33 (2023)
Abstract Background This paper investigates how the COVID-19 school closure has affected the gender gap in grade-8 students' performance and what are the drivers behind this. By analysing four different countries (i.e., the Russian Federation, Sloven
Externí odkaz:
https://doaj.org/article/8f0fe5d9a3d2480f9d6436a94b5197eb
Publikováno v:
Ask, Vol 31, Iss 1, Pp 69-97 (2022)
We extend Jasso and colleagues’ (Jasso, Shelly, Webster 2019) research into expressiveness and impartiality of justice evaluations, both methodologically and substantively. Substantively, using the concepts developed within the distributive justice
Externí odkaz:
https://doaj.org/article/ae6238f5a3fb4a2ab3bc2d25303238d2
Publikováno v:
Catalysts, Vol 11, Iss 10, p 1178 (2021)
Chlorodifluoromethane (R-22), the most abundant freon in the atmosphere, was subjected to successful hydrodechlorination in the presence of palladium supported on γ-alumina, at a relatively low reaction temperature (180 °C). The combination of cata
Externí odkaz:
https://doaj.org/article/84c8ed0f394440cdaca01895f64005de
Autor:
Monika Radlik, Wojciech Juszczyk, Wioletta Raróg-Pilecka, Magdalena Zybert, Zbigniew Karpiński
Publikováno v:
Catalysts, Vol 11, Iss 5, p 525 (2021)
Previously tested 2 wt % palladium-platinum catalysts supported on Norit activated carbon preheated to 1600 °C have been reinvestigated in CHFCl2 hydrodechlorination. An additionally adopted catalyst oxidation at 350–400 °C produced nearly an ord
Externí odkaz:
https://doaj.org/article/0745306df0084d8b987738086f6f60e2
Autor:
Monika Radlik, Wojciech Juszczyk, Krzysztof Matus, Wioletta Raróg-Pilecka, Zbigniew Karpiński
Publikováno v:
Catalysts, Vol 10, Iss 11, p 1291 (2020)
Commercial activated carbon, pretreated in helium at 1600 °C and largely free of micropores, was used as a support for two series of 2 wt.% Pd–Pt catalysts, prepared by impregnating the support with metal acetylacetonates or metal chlorides. The c
Externí odkaz:
https://doaj.org/article/721b171179834926b0fd9d238cab040c
Autor:
Antonio Angel Romero, Zbigniew Karpiński, Juan Manuel Campelo, Fernando Colmenares, Juan Carlos Colmenares, Rafael Luque
Publikováno v:
Materials, Vol 2, Iss 4, Pp 2228-2258 (2009)
Heterogeneous photocatalysis offer many possibilities for finding appropiate environmentally friendly solutions for many of the the problems affecting our society (i.e., energy issues). Researchers are still looking for novel routes to prepare solid
Externí odkaz:
https://doaj.org/article/97b97340a4074fab8832b83e8d47fdbe
Autor:
Magdalena Bonarowska, Maria Wojciechowska, Maciej Zieliński, Angelika Kiderys, Michał Zieliński, Piotr Winiarek, Zbigniew Karpiński
Publikováno v:
Molecules, Vol 21, Iss 12, p 1620 (2016)
Pd/MgO, Pd/MgF2 and Pd/MgO-MgF2 catalysts were investigated in the reaction of CCl4 hydrodechlorination. All the catalysts deactivated in time on stream, but the degree of deactivation varied from catalyst to catalyst. The MgF2-supported palladium wi
Externí odkaz:
https://doaj.org/article/16ac6b0f8209406f9df229998c012c12
Publikováno v:
Learning and Individual Differences. 102:102254