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Your search keyword '"Nagy, Károly"' showing total 30 results
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30 results on '"Nagy, Károly"'

1. Local colonisations and extinctions of European birds are poorly explained by changes in climate suitability

Author

Howard, Christine, Marjakangas, Emma-Liina, Morán-Ordóñez, Alejandra, Milanesi, Pietro, Abuladze, Aleksandre, Aghababyan, Karen, Ajder, Vitalie, Arkumarev, Volen, Balmer, Dawn E., Bauer, Hans-Günther, Beale, Colin M., Bino, Taulant, Boyla, Kerem Ali, Burfield, Ian J., Burke, Brian, Caffrey, Brian, Chodkiewicz, Tomasz, Del Moral, Juan Carlos, Mazal, Vlatka Dumbovic, Fernández, Néstor, Fornasari, Lorenzo, Gerlach, Bettina, Godinho, Carlos, Herrando, Sergi, Ieronymidou, Christina, Johnston, Alison, Jovicevic, Mihailo, Kalyakin, Mikhail, Keller, Verena, Knaus, Peter, Kotrošan, Dražen, Kuzmenko, Tatiana, Leitão, Domingos, Lindström, Åke, Maxhuni, Qenan, Mihelič, Tomaž, Mikuska, Tibor, Molina, Blas, Nagy, Károly, Noble, David, Øien, Ingar Jostein, Paquet, Jean-Yves, Pladevall, Clara, Portolou, Danae, Radišić, Dimitrije, Rajkov, Saša, Rajković, Draženko Z., Raudonikis, Liutauras, Sattler, Thomas, Saveljić, Darko, Shimmings, Paul, Sjenicic, Jovica, Šťastný, Karel, Stoychev, Stoycho, Strus, Iurii, Sudfeldt, Christoph, Sultanov, Elchin, Szép, Tibor, Teufelbauer, Norbert, Uzunova, Danka, van Turnhout, Chris A. M., Velevski, Metodija, Vikstrøm, Thomas, Vintchevski, Alexandre, Voltzit, Olga, Voříšek, Petr, Wilk, Tomasz, Zurell, Damaris, Brotons, Lluís, Lehikoinen, Aleksi, and Willis, Stephen G.

Published
2023
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12. Oxidative Stress and Cytotoxicity Induced by Co-Formulants of Glyphosate-Based Herbicides in Human Mononuclear White Blood Cells.

Author

Makame, Khadija Ramadhan, Masese, Sylvia Nyambeki, Ádám, Balázs, and Nagy, Károly

Subjects
LEUCOCYTES, CYTOTOXINS, OXIDATIVE stress, HERBICIDES, HERBICIDE application
Abstract

The use of genetically modified, glyphosate-resistant crops has led to the widespread application of glyphosate-based herbicides (GBHs), making them one of the most widely used herbicide formulations on the market. To enhance the efficacy of the active ingredient, GBHs used in practice often contain other ingredients marked as inert "adjuvants" or "co-formulants", the toxic properties of which are poorly understood. The objective of this study was to compare the cytotoxic effects of pure glyphosate, three GBHs (Roundup Mega, Fozat 480 and Glyfos) and two co-formulants commonly used in GBHs as assessed via CCK-8 assay, and the extent of their potential oxidative damage as assessed via superoxide dismutase (SOD) assay, in order to reveal the role of adjuvants in the toxicity of the formulations. Our results showed that glyphosate alone did not significantly affect cell viability. In contrast, GBHs and adjuvants induced a pronounced cytotoxic effect from a concentration of 100 μM. SOD activity of cells treated with GBHs or adjuvants was significantly lower compared to cells treated with glyphosate alone. This suggests that the adjuvants in GBHs are responsible for the cytotoxic effects of the formulations through the induction of oxidative stress. [ABSTRACT FROM AUTHOR]

Published
2023
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13. Ecological barriers mediate spatiotemporal shifts of bird communities at a continental scale

Author

Marjakangas, Emma-Liina, Bosco, Laura, Versluijs, Martijn, Xu, Yanjie, Santangeli, Andrea, Holopainen, Sari, Mäkeläinen, Sanna, Herrando, Sergi, Keller, Verena, Voříšek, Petr, Brotons, Lluís, Johnston, Alison, Princé, Karine, Willis, Stephen G, Aghababyan, Karen, Ajder, Vitalie, Balmer, Dawn E, Bino, Taulant, Boyla, Kerem Ali, Chodkiewicz, Tomasz, Del Moral, Juan Carlos, Mazal, Vlatka Dumbović, Ferrarini, Alessandro, Godinho, Carlos, Gustin, Marco, Kalyakin, Mikhail, Knaus, Peter, Kuzmenko, Tatiana, Lindström, Åke, Maxhuni, Qenan, Molina, Blas, Nagy, Károly, Radišić, Dimitrije, Rajkov, Saša, Rajković, Draženko Z, Raudoniki, Liutauras, Sjeničić, Jovica, Stoychev, Stoycho, Szép, Tibor, Teufelbauer, Norbert, Ursul, Silvia, van Turnhout, Chris A M, Velevski, Metodija, Vikstrøm, Thomas, Wilk, Tomasz, Voltzit, Olga, Øien, Ingar Jostein, Sudfeldt, Christoph, Gerlach, Bettina, Lehikoinen, Aleksi, University of St Andrews. Arctic Research Centre, and University of St Andrews. Statistics

Subjects
MCC, QL, GE, Distribution shift, Climate Change, Resistance, DAS, Birds - physiology, Biodiversity, QL Zoology, SDG 13 - Climate Action, Community composition, Animals, Macroecology, Ecosystem, Jaccard dissimilarity, Forecasting, GE Environmental Sciences
Abstract

Funding: This study was supported by the Swiss National Science Foundation (grant P2BEP3_195232) and by the Academy of Finland (project 323527 and project 329251). Species' range shifts and local extinctions caused by climate change lead to community composition changes. At large spatial scales, ecological barriers, such as biome boundaries, coastlines, and elevation, can influence a community's ability to shift in response to climate change. Yet, ecological barriers are rarely considered in climate change studies, potentially hindering predictions of biodiversity shifts. We used data from two consecutive European breeding bird atlases to calculate the geographic distance and direction between communities in the 1980s and their compositional best match in the 2010s and modeled their response to barriers. The ecological barriers affected both the distance and direction of bird community composition shifts, with coastlines and elevation having the strongest influence. Our results underscore the relevance of combining ecological barriers and community shift projections for identifying the forces hindering community adjustments under global change. Notably, due to (macro)ecological barriers, communities are not able to track their climatic niches, which may lead to drastic changes, and potential losses, in community compositions in the future. Publisher PDF

Published
2023

14. Ecological barriers mediate spatiotemporal shifts of bird communities at a continental scale

Author

Marjakangas, Emma-Liina, primary, Bosco, Laura, additional, Versluijs, Martijn, additional, Xu, Yanjie, additional, Santangeli, Andrea, additional, Holopainen, Sari, additional, Mäkeläinen, Sanna, additional, Herrando, Sergi, additional, Keller, Verena, additional, Voříšek, Petr, additional, Brotons, Lluís, additional, Johnston, Alison, additional, Princé, Karine, additional, Willis, Stephen G., additional, Aghababyan, Karen, additional, Ajder, Vitalie, additional, Balmer, Dawn E., additional, Bino, Taulant, additional, Boyla, Kerem Ali, additional, Chodkiewicz, Tomasz, additional, del Moral, Juan Carlos, additional, Mazal, Vlatka Dumbović, additional, Ferrarini, Alessandro, additional, Godinho, Carlos, additional, Gustin, Marco, additional, Kalyakin, Mikhail, additional, Knaus, Peter, additional, Kuzmenko, Tatiana, additional, Lindström, Åke, additional, Maxhuni, Qenan, additional, Molina, Blas, additional, Nagy, Károly, additional, Radišić, Dimitrije, additional, Rajkov, Saša, additional, Rajković, Draženko Z., additional, Raudoniki, Liutauras, additional, Sjeničić, Jovica, additional, Stoychev, Stoycho, additional, Szép, Tibor, additional, Teufelbauer, Norbert, additional, Ursul, Silvia, additional, van Turnhout, Chris A. M., additional, Velevski, Metodija, additional, Vikstrøm, Thomas, additional, Wilk, Tomasz, additional, Voltzit, Olga, additional, Øien, Ingar Jostein, additional, Sudfeldt, Christoph, additional, Gerlach, Bettina, additional, Shimmings, Paul, additional, and Lehikoinen, Aleksi, additional

Published
2023
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16. Optimal renal artery-aorta angulation revealed by flow simulation

Author

Csonka, David, primary, Kalmár Nagy, Károly, additional, Szakály, Péter, additional, Szukits, Sándor, additional, Bogner, Péter, additional, Koller, Akos, additional, Kun, Szilárd, additional, Wittmann, István, additional, Háber, István Ervin, additional, and Horváth, Iván Gabor, additional

Published
2023
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17. Genotoxicity of Occupational Pesticide Exposures among Agricultural Workers in Arab Countries : A Systematic Review and Meta-Analysis

Author

Sherif, Moustafa, Makame, Khadija Ramadhan, Östlundh, Linda, Paulo, Marilia Silva, Nemmar, Abderrahim, Ali, Bassam R., Al-Rifai, Rami H., Nagy, Károly, Ádám, Balázs, Sherif, Moustafa, Makame, Khadija Ramadhan, Östlundh, Linda, Paulo, Marilia Silva, Nemmar, Abderrahim, Ali, Bassam R., Al-Rifai, Rami H., Nagy, Károly, and Ádám, Balázs

Abstract

Exposure to pesticides in Arab countries is a significant public health concern due to extensive agricultural activity and pesticide use. This systematic review aimed to evaluate the genotoxic effects of agricultural pesticide exposure in the region, identify research gaps, and assess methodological limitations. Following the PRISMA guidelines, a comprehensive search yielded five relevant studies conducted in Egypt, Syria, and Jordan. Various genotoxicity assays were employed, revealing a higher level of DNA damage in exposed compared to non-exposed individuals. Farmers exposed to pesticides exhibited a significantly higher occurrence of chromosomal translocation (t(14;18)), micronuclei, and chromosomal aberrations. However, only two studies assessed cytotoxicity indirectly. The studies predominantly focused on male participants, with variations in sample size and pesticide types. The lack of detailed exposure data necessitates cautious interpretation. This review underscores the need for further research on the genotoxicity of occupational pesticide exposure in the Middle East. Future studies should adopt robust study designs, collect biological and environmental samples, conduct repeated sampling, analyze seasonal variations, and encompass diverse study sites associated with specific crop groups.

Published
2023
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23. Some properties of the Walsh-Nörlund means.

Author

Goginava, Ushangi and Nagy, Károly

Subjects
INTEGRABLE functions, SUMMABILITY theory, MARTINGALES (Mathematics)
Abstract

In the present paper we give a necessary and sufficient condition on monotone weights, which guaranties the Nörlund means of Walsh-Fourier series converge in L1 norm and CW norm. We also discuss the almost everywhere summability by Nörlund means and we prove that our condition is sufficient for almost everywhere convergence of Nörlund means for all integrable functions. [ABSTRACT FROM AUTHOR]

Published
2023
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24. The future distribution of wetland birds breeding in Europe validated against observed changes in distribution

Author

Soultan, Alaaeldin, primary, Pavón-Jordán, Diego, additional, Bradter, Ute, additional, Sandercock, Brett K, additional, Hochachka, Wesley M, additional, Johnston, Alison, additional, Brommer, Jon, additional, Gaget, Elie, additional, Keller, Verena, additional, Knaus, Peter, additional, Aghababyan, Karen, additional, Maxhuni, Qenan, additional, Vintchevski, Alexandre, additional, Nagy, Károly, additional, Raudonikis, Liutauras, additional, Balmer, Dawn, additional, Noble, David, additional, Leitão, Domingos, additional, Øien, Ingar Jostein, additional, Shimmings, Paul, additional, Sultanov, Elchin, additional, Caffrey, Brian, additional, Boyla, Kerem, additional, Radišić, Dimitrije, additional, Lindström, Åke, additional, Velevski, Metodija, additional, Pladevall, Clara, additional, Brotons, Lluís, additional, Karel, Šťastný, additional, Rajković, Draženko Z, additional, Chodkiewicz, Tomasz, additional, Wilk, Tomasz, additional, Szép, Tibor, additional, van Turnhout, Chris, additional, Foppen, Ruud, additional, Burfield, Ian, additional, Vikstrøm, Thomas, additional, Mazal, Vlatka Dumbović, additional, Eaton, Mark, additional, Vorisek, Petr, additional, Lehikoinen, Aleksi, additional, Herrando, Sergi, additional, Kuzmenko, Tatiana, additional, Bauer, Hans-Günther, additional, Kalyakin, Mikhail V, additional, Voltzit, Olga V, additional, Sjeničić, Jovica, additional, and Pärt, Tomas, additional

Published
2022
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28. Monitoring population change using ’citizen science’ data: case study of the Hungarian White Stork (Ciconia ciconia)population between 1999 and 2021

Author

Lovászi, Péter, Nagy, Károly, Görögh, Zoltán, and Szép, Tibor

Abstract

In Hungary, changes in the White Stork population are monitored using two methods that involve a large number of volunteers: nest surveys since 1941, and since 1999 within the framework of the Common Bird Monitoring Scheme (MMM) programme. In our article, we briefly present the results of the nest survey data between 1999 and 2021, the population trend calculated on the basis of them, and the comparison of the latter with the trends shown by the MMM programme, which – among other species – counts all stork individuals on 2.5×2.5 km sample areas. Both sets of data show a decreasing trend, but there is a significant difference between them, which may be partly due to the inaccuracies of the nest database, considering the fact that the MMM also counts non-breeding adult and immature individuals. However, both methods have the characteristics that make them suitable for monitoring population trends.

Published
2022
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29. On the maximal operators of weighted Marcinkiewicz type means of two-dimensional Walsh–Fourier series.

Author

Nagy, Károly and Salim, Mohamed

Subjects
*HARDY spaces, *MARTINGALES (Mathematics)
Abstract

Goginava proved that the maximal operator σ α , * {\sigma^{\alpha,*}} ( 0 < α < 1 {0<\alpha<1}) of two-dimensional Marcinkiewicz type (C , α) {(C,\alpha)} means is bounded from the two-dimensional dyadic martingale Hardy space H p ⁢ (G 2) {H_{p}(G^{2})} to the space L p ⁢ (G 2) {L^{p}(G^{2})} for p > 2 2 + α {p>\frac{2}{2+\alpha}}. Moreover, he showed that assumption p > 2 2 + α {p>\frac{2}{2+\alpha}} is essential for the boundedness of the maximal operator σ α , * {\sigma^{\alpha,*}}. It was shown that at the point p 0 = 2 2 + α {p_{0}=\frac{2}{2+\alpha}} the maximal operator σ α , * {\sigma^{\alpha,*}} is bounded from the dyadic Hardy space H 2 / (2 + α) ⁢ (G 2) {H_{2/(2+\alpha)}(G^{2})} to the space weak- L 2 / (2 + α) ⁢ (G 2) {L^{2/(2+\alpha)}(G^{2})}. The main aim of this paper is to investigate the behaviour of the maximal operators of weighted Marcinkiewicz type σ α , * {\sigma^{\alpha,*}} means ( 0 < α < 1 {0<\alpha<1}) in the endpoint case p 0 = 2 2 + α {p_{0}=\frac{2}{2+\alpha}}. In particular, the optimal condition on the weights is given which provides the boundedness from H 2 / (2 + α) ⁢ (G 2) {H_{2/(2+\alpha)}(G^{2})} to L 2 / (2 + α) ⁢ (G 2) {L^{2/(2+\alpha)}(G^{2})}. Furthermore, a strong summation theorem is stated for functions in the dyadic martingale Hardy space H 2 / (2 + α) ⁢ (G 2) {H_{2/(2+\alpha)}(G^{2})}. [ABSTRACT FROM AUTHOR]

Published
2022
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