Zobrazeno 1 - 10
of 149
pro vyhledávání: '"Grzegorz Szewczyk"'
Autor:
Jozef Krilek, Arkadiusz Gendek, Monika Aniszewska, Grzegorz Szewczyk, Miroslava Ťavodová, Raffaele Spinelli, Ján Kováč, Jan Malaťák, Mariusz Kormanek, Vladimír Mancel, Tomáš Kuvik
Publikováno v:
BioResources, Vol 19, Iss 2, Pp 3653-3667 (2024)
The paper is focused on the research of chipper knives with a straight and modified cutting edge in order to determine the energy consumption of the chipping process and the uniformity of the size of the fractions of the designed chipper knife for th
Externí odkaz:
https://doaj.org/article/fe3edb8a5670447ea3d7917277d4ca30
Publikováno v:
Journal of Photochemistry and Photobiology, Vol 19, Iss , Pp 100225- (2024)
Oxidative stress and inflammation in the retinal pigment epithelium (RPE) cells have been identified as significant risk factors in the development and progression of retinal associated diseases including age-related macular degeneration (AMD). In ad
Externí odkaz:
https://doaj.org/article/9bdec41e2408458da2ba3e4324cb6b05
Autor:
Sebastian Sobocki, Florian Adamczyk, Paweł Tylek, Michał Szaroleta, Kamil Żurowski, Mariusz Kormanek, Grzegorz Szewczyk, Sylwester Tabor, Mikołaj Zwierzyński, Michał Kaźmierczak, Jarosław Mac
Publikováno v:
Forests, Vol 14, Iss 12, p 2420 (2023)
Agrotechnological procedures related to forest management, including planting, are burdensome and the energy expenditure of the people working is very high. Nowadays, planting is usually carried out manually, and sometimes with the use of planters co
Externí odkaz:
https://doaj.org/article/c114b256bf134a7abd50dbda6ca57a5d
Publikováno v:
International Journal of Molecular Sciences, Vol 24, Iss 22, p 16210 (2023)
Sirtuins, especially SIRT1, play a significant role in regulating inflammatory response, autophagy, and cell response to oxidative stress. Since their discovery, sirtuins have been regarded as anti-ageing and longevity-promoting enzymes. Sirtuin-regu
Externí odkaz:
https://doaj.org/article/fa4d13c6b96747baa4bccca2a3eeec3a
Publikováno v:
Journal of Immunology Research, Vol 2022 (2022)
Coronavirus disease 2019 (COVID-19), a pandemic disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, can affect almost all systems and organs of the human body, including those responsible for reproductive functio
Externí odkaz:
https://doaj.org/article/22b3c59b1fb9413191c7dbf7a485bd23
Autor:
Paweł Nalepa, Robert Gawecki, Grzegorz Szewczyk, Katarzyna Balin, Mateusz Dulski, Mieczysław Sajewicz, Anna Mrozek-Wilczkiewicz, Robert Musioł, Jaroslaw Polanski, Maciej Serda
Publikováno v:
Cancer Nanotechnology, Vol 11, Iss 1, Pp 1-21 (2020)
Abstract Background The first-line chemotherapy drug that is used to treat pancreatic ductal adenocarcinoma is gemcitabine. Unfortunately, its effectiveness is hampered by its chemo-resistance, low vascularization and drug biodistribution limitations
Externí odkaz:
https://doaj.org/article/5b86eb4e292446169fd2ec9d5ac802f4
Publikováno v:
International Journal of Molecular Sciences, Vol 23, Iss 23, p 14663 (2022)
Polycystic ovary syndrome (PCOS) is the most common endocrine disorder in women of reproductive age. Despite its incidence, the syndrome is poorly understood and remains underdiagnosed, and female patients are diagnosed with a delay. The heterogenous
Externí odkaz:
https://doaj.org/article/4bce2eb9ea1c4faca6771e7faa240ef7
Autor:
Arkadiusz Stańczykiewicz, Dariusz Kulak, Krzysztof Leszczyński, Grzegorz Szewczyk, Paweł Kozicki
Publikováno v:
Forests, Vol 12, Iss 12, p 1626 (2021)
Within the majority of forest areas where timber is harvested for industrial and energy purposes, working technologies using highly efficient multi-operational machinery and equipment are employed. The situation is different in fragmented, privately
Externí odkaz:
https://doaj.org/article/be4a33f8b2394167975d367d3a7645fc
Autor:
Grzegorz Szewczyk, Janusz M. Sowa
Publikováno v:
New Zealand Journal of Forestry Science, Vol 47, Iss 1, Pp 1-10 (2017)
Abstract Background Work time measurements are the starting point for any calculation of unit costs of machine exploitation; therefore, the accuracy of evaluating these costs determines the economic effectiveness of technological solutions employed i
Externí odkaz:
https://doaj.org/article/2391741f620447f69718ebe46d74eb67
Autor:
Krzysztof Leszczyński, Arkadiusz Stańczykiewicz, Dariusz Kulak, Grzegorz Szewczyk, Paweł Tylek
Publikováno v:
Forests, Vol 12, Iss 7, p 870 (2021)
The aim of the present work was to estimate the productivity and costs of timber harvesting and forwarding during the first commercial thinning of a Scots pine stand. Three harvesting models were introduced and compared: narrow trail, wide access tra
Externí odkaz:
https://doaj.org/article/3a3feb259d80494193d0bcc246a8b8f7