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1.

001-es BibID:BIBFORM109207
035-os BibID:(cikkazonosító)e14045 (Scopus)85149799289
Első szerző:Abriha Dávid (geográfus)
Cím:Smaller is better? Unduly nice accuracy assessments in roof detection using remote sensing data with machine learning and k-fold cross-validation / Dávid Abriha, Prashant K. Srivastava, Szilárd Szabó
Dátum:2023
ISSN:2405-8440
Megjegyzések:Deriving the thematic accuracy of models is a fundamental part of image classification analyses. K-fold cross-validation (KCV), as an accuracy assessment technique, can be biased because existing built-in algorithms of software solutions do not handle the high autocorrelation of remotely sensed images, leading to overestimation of accuracies. We aimed to quantify the magnitude of the overestimation of KCV-based accuracies and propose a method to overcome this problem with the example of rooftops using a WorldView-2 (WV2) satellite image, and two orthophotos. Random split to training/testing subsets, independent testing and different types of repeated KCV sampling strategies were used to generate input datasets for classification. Results revealed that applying the random splitting of reference data to training/testing subsets and KCV methods had significantly biased the accuracies by up to 17%; overall accuracies (OAs) can incorrectly reach >99%. We found that repeated KCV can provide similar results to independent testing when spatial sampling is applied with a sufficiently large distance threshold (in our case 10 m). Coarser resolution of WV2 ensured more reliable results (up to a 5?9% increase in OA) than orthophotos. Object-based pixel purity of buildings showed that when using a majority filter for at least of 50% of objects the final accuracy approached 100% with each sampling method. The final conclusion is that KCV-based modelling ensures better accuracy than single models (with better pixel purity on the object level), but the accuracy metrics without spatially filtered sampling are not reliable.
Tárgyszavak:Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Urban environment
Roof classification
Accuracy assessment
Salt-and-pepper effect
Post-classification
Object-based pixel purity
Megjelenés:Heliyon. - 9 : 3 (2023), e14045, p.1-17. -
További szerzők:Srivastava, Prashant K. Szabó Szilárd (1974-) (geográfus)
Pályázati támogatás:Kooperatív Doktori Program
Egyéb
NKFI K 138079
Egyéb
NKFI K 142121
Egyéb
TKP2020-NKA-04
Egyéb
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2.

001-es BibID:BIBFORM076532
035-os BibID:(cikkazonosító)e00997
Első szerző:Biró Attila (okleveles biomérnök)
Cím:Isolation of allithiamine from Hungarian red sweet pepper seed (Capsicum annuum L.) / Biro Attila, Gál Ferenc, Hegedűs Csaba, Batta Gyula, Cziáky Zoltán, Peitl Barna, Stündl László, Gyémánt Gyöngyi, Remenyik Judit
Dátum:2018
ISSN:2405-8440
Megjegyzések:A natural fat-soluble thiamine derivative, namely N-[(4-amino-2-methylpyrimidin-5-yl)methyl]-N-[(2E)-5-hydroxy-3-(prop-2-en-1-yldisulfanyl)pent-2-en-2-yl]formamide (allithiamine) has been identified only in garlic (Allium sativum) until now. Hungarian red sweet pepper (Capsicum annuum) was found as a new source of allithiamine. Extraction procedure and analytical method were developed for the isolation of allithiamine and a chemical synthesis of the compound was also developed. First solid-liquid extraction was performed with 96 % ethanol to isolate allithiamine from pepper seeds. Thereafter, solid phase extraction was applied from ethanolic extract using C18 cartridge to concentrate and purify samples for further analysis. The structure of the synthesized and the isolated compounds was verified by reverse phase HPLC, HPLC-MS, MALDTOF MS and NMR. Furthermore, effect of allithiamine was investigated on streptozotocin-induced diabetic mice with neuropathy. The results show that neuropathic pain sensation is improved by allithiamine treatment similarly to benfothiamine.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Analytical chemistry
Food science
Megjelenés:Heliyon. - 4 : 12 (2018), p. 1-17. -
További szerzők:Gál Ferenc (1964-) (élelmiszertechnológia) Hegedűs Csaba (1983-) (Molekuláris biológus, Cera-Med Kft. Debrecen) Batta Gyula (1953-) (molekula-szerkezet kutató) Cziáky Zoltán Peitl Barna (1972-) (orvos, farmakológus) Stündl László (1970-) (agrármérnök) Gyémánt Gyöngyi (1960-) (vegyész) Gálné Remenyik Judit (1965-) (kémia tanár, okleveles vegyész)
Pályázati támogatás:GINOP-2.3.2-15-2016-00042
GINOP
Internet cím:DOI
Intézményi repozitóriumban (DEA) tárolt változat
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3.

001-es BibID:BIBFORM113286
035-os BibID:(Scopus)85151562448 (WOS)000972780900001 (cikkazonosító)e13954
Első szerző:Decsi Kincső
Cím:Corrigendum to "Natural immunity stimulation using ELICE16INDURES plant conditioner in field culture of soybean" [Heliyon 9 (1), (January 2023) Article e12907] / Kincső Decsi, Barbara Kutasy, Géza Hegedűs, Zoltán Péter Alföldi, Nikoletta Kálmán, Ágnes Nagy, Eszter Virág
Dátum:2023
ISSN:2405-8440
Tárgyszavak:Orvostudományok Klinikai orvostudományok hozzászólás
folyóiratcikk
Megjelenés:Heliyon. - 9 : 3 (2023), p. 1-8. -
További szerzők:Kutasy Barbara Hegedűs Géza Alföldi Zoltán Péter Kálmán Nikoletta Nagy Ágnes Virág Eszter (1982-) (biológus)
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4.

001-es BibID:BIBFORM108041
035-os BibID:(cikkazonosító)e09069 (WOS)000784250800008 (Scopus)85125934386
Első szerző:Georgieva, Elenka
Cím:Biomarkers for pollution in caged mussels from three reservoirs in Bulgaria : a pilot study / Elenka Georgieva, László Antal, Stela Stoyanova, Desislava Arnaudova, Iliana Velcheva, Ilia Iliev, Tonka Vasileva, Veselin Bivolarski, Vesela Mitkovska, Tsenka Chassovnikarova, Borislava Todorova, Ifeanyi Emmanuel Uzochukwu, Krisztián Nyeste, Vesela Yancheva
Dátum:2022
ISSN:2405-8440
Megjegyzések:The mussel-watch concept was firstly proposed in 1975, which was later adopted by several international monitoring programs worldwide. However, for the very first time, a field experiment with caged mussels was performed in three reservoirs in Bulgaria to follow the harmful effects of sub-chronic pollution (30 days) of metals, trace, and macro-elements, as well as some organic toxicants, such as polybrominated diphenyl ethers and chlorinated paraffins. Therefore, we studied the biometric indices, histochemical lesions in the gills, biochemical changes in the digestive glands (antioxidant defense enzymes, such as catalase, glutathione reductase, and glutathione peroxidase; metabolic enzymes, such as lactate dehydrogenase, alanine aminotransferase, and aspartate aminotransferase, and the neurotransmitter cholinesterase), in addition to the DNA damage in the Chinese pond mussel, Sinanodonta woodiana (Lea, 1834) in Kardzhali, Studen Kladenets and Zhrebchevo reservoirs in Bulgaria. Significant correlation trends between the pollution levels, which we reported before, and the biomarker responses were established in the current paper. Overall, we found that both tested organs were susceptible to pollution-induced oxidative stress. The different alterations in the selected biomarkers in the caged mussels compared to the reference group were linked to the different kinds and levels of water pollution in the reservoirs, and also to the simultaneously conducted bioaccumulation studies.
Tárgyszavak:Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Heliyon. - 8 : 3 (2022), p. 1-14. -
További szerzők:Antal László (1984-) (hidrobiológus, biológus-ökológus) Stoyanova, Stela Arnaudova, Desislava Velcheva, Iliana Iliev, Ilia Vasileva, Tonka Bivolarski, Veselin Mitkovska, Vesela Chassovnikarova, Tsenka Todorova, Borislava Uzochukwu, Ifeanyi Emmanuel (1989-) Nyeste Krisztián József (1993-) (hidrobiológus) Yancheva, Vesela
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5.

001-es BibID:BIBFORM112165
035-os BibID:(cikkazonosító)e16725 (Scopus)85160695044 (WoS)001021959700001
Első szerző:Hajredini, Arber
Cím:Possible mediation of Cladocera species by a researcher's chest wader / Arber Hajredini, Florent Demelezi, Imre Somlyai, István Grigorszky, Csaba Berta
Dátum:2023
ISSN:2405-8440
Megjegyzések:Mediation of aquatic species has become an increasing problem for the last few decades. With the increasing commercial import, species' direct or indirect spread can gain more space. There are several ways for them to land in their new home and spread through the country. Most of the aquatic species are spread by waterways, boats, vehicles, or even with the help of humans. Cladocerans have a good dispersal ability, thanks to their small size, additionally they possess good adaptation, and mechanisms to develop resting eggs. Benthic or littoral species can be mediated much more easily due to their living space, and with the help of human activities (e.g., scientists, anglers and people working in water bodies) they have a higher chance to colonize new habitats. Our goal was to explore if Cladocera species might be mediated by a scientist chest wader, while sampling in similar-sized, close-to-each other lakes, with different utilization. Most of the species were found in abandoned fishing lakes, followed by oxbow lakes (protected), and ultimately in intensively fished lakes. NMDS showed that samples from lakes with the same utilization are similar to each other. Differently utilized lakes can have various Cladocera species, even though they are closely related to each other. Based on the results, scientists can mediate species on their chest wader from lake to lake and may deteriorate the results. We recommend a necessary chest wader cleaning after every sampling process, especially when samples are taken from differently utilized lakes.
Tárgyszavak:Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Cladocera
Mediation
Dispersal
Utilization type
Chest wader
Cleaning
Megjelenés:Heliyon. - 9 : 6 (2023), p. 1-10. -
További szerzők:Demelezi Florent Somlyai Imre (1978-) (okleveles hidrobiológus) Grigorszky István (1967-) (biológus-ökológus) Berta Csaba (1991-) (hidrobiológus)
Pályázati támogatás:TKP2021-NKTA-32
Egyéb
RRF 2.3.1 21 2022 00008
NKFIH
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6.

001-es BibID:BIBFORM093929
035-os BibID:(cikkazonosító)e06764
Első szerző:Mohammed Safwan (agrármérnök)
Cím:Assessing the WEPP model performance for predicting daily runoff in three terrestrial ecosystems in western Syria / Safwan Mohammed, Mais Hussien, Karam Alsafadi, Ali Mokhtar, Guido Rianna, Issa Kbibo, Mona Barkat, Swapan Talukdar, Szilárd Szabó, Endre Harsanyi
Dátum:2021
ISSN:2405-8440
Megjegyzések:Soil erosion is one of the main threats facing the agriculture and natural resources sector all over the world, and the same is true for Syria. Several empirical and physically based tools have been proposed to assess erosion induced soil losses and runoff driving the processes, from plot to regional spatial scales. The main goal of this research is to evaluate the performance of the Water Erosion Prediction Project (WEPP) model in predicting runoff in comparison with field experiments in the Al-Sabahia region of Western Syria in three ecosystems: agricultural lands (AG), burned forest (BF) and forest (FO). To achieve this, field experimental plots (2?1.65?0.5 m) were prepared to obtain runoff observation data between September 2012 and December 2013. In addition, the input data (atmospheric forcing, soil, slope, land management) were prepared to run the WEPP model to estimate the runoff. The results indicate that the average observed runoffs in the AG, BF and FO were 12.54 ? 1.17, 4.81 ? 0.97 and 1.72 ? 0.16 mm/event, respectively, while the simulated runoffs in the AG, BF and FO were 15.15 ? 0.89, 9.23 ? 1.48 and 2.61 ? 0.47mm/event, respectively. The statistical evaluation of the model's performance showed an unsatisfactory performance of the WEPP model for predicting the run-offs in the study area. This may be caused by the structural flaws in the model, and/or the insufficient site-specific input parameters. So, to achieve good performance and reliable results of the WEPP model, more observation data is required from different ecosystems in Syria. These findings can provide guidance to planners and environmental engineers for proposing environmental protection and water resources management plans in the Coastal Region in Syria.
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
soil erosion
wepp model
runoff prediction
ecosystem
statistical analysis
Megjelenés:Heliyon. - 7 : 4 (2021), p. 1-12. -
További szerzők:Hussien, Mais Alsafadi, Karam Mokhtar, Ali Rianna, Guido Kbibo, Issa Barkat, Mona Talukdar, Swapan Szabó Szilárd (1974-) (geográfus) Harsányi Endre (1976-) (agrármérnök)
Pályázati támogatás:TKP2020-IKA-04
Egyéb
2020-4.1.1-TKP2020
Egyéb
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7.

001-es BibID:BIBFORM108865
035-os BibID:(cikkazonosító)e13717 (scopus)85148666984
Első szerző:Muhollari, Teuta
Cím:Heavy metals in unrecorded Albanian rakia : A pilot study on a potential public health risk / Muhollari Teuta, Szűcs Sándor, Sajtos Zsófi, McKee Martin, Baranyai Edina, Ádány Róza, Pál László
Dátum:2023
ISSN:2405-8440
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Heliyon. - 9 : 3 (2023), p. 1-24. -
További szerzők:Szűcs Sándor (1958-) (biokémikus, vegyész) Sajtos Zsófi (1994-) (kémikus) McKee, Martin Baranyai Edina (1987-) (környezetkutató) Ádány Róza (1952-) (megelőző orvostan és népegészségtan szakorvos) Pál László (1987-) (népegészségügyi szakember, egészségfejlesztő)
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8.

001-es BibID:BIBFORM118648
035-os BibID:(cikkazonosító)e25271 (WoS)001179429900001 (Scopus)85184071318
Első szerző:Renkó József Bálint
Cím:Investigating the kinetics of layer development during the color etching of low-carbon steel with in-situ spectroscopic ellipsometry / Renkó, József Bálint ; Romanenko, Alekszej ; Bíró, Tamás ; Szabó, Péter János ; Petrik, Péter ; Bonyár, Attila
Dátum:2024
ISSN:2405-8440
Megjegyzések:Color etching is a useful corrosive process, widely applied in metallography to study the microstructure of metals. To prove the existence of the previously hypothesized steady-state etching rate, in-situ investigations were performed with spectroscopic ellipsometry during the color etching of ferritic materials. Kinetic information regarding the refractive index, extinction coefficient, and layer thickness were used to calculate the steady-state layer buildup rate, which was 1.90 ? 0.15 nm/s for low-carbon steel and 0.99 ? 0.06 nm/s for cast iron owing to its better corrosion resistance. The presented methodology and findings could help understanding other processes that involve the development of layers on metallic surfaces.
Tárgyszavak:Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
beraha-I
color etching
in-situ
layer development kinetics
optical microscopy
spectroscopic ellipsometry
Megjelenés:Heliyon. - 10 : 3 (2024), p. 1-8. -
További szerzők:Romanenko, Alekszej Bíró Tamás Szabó Péter János Petrik Péter Bonyár Attila
Pályázati támogatás:K-146181
OTKA
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