Péter Palotás, Péter Palotás, Gábor Jónás, József Lehel, László Friedrich,
In the present study, common carp ( Cyprinus carpio ), a highly valuable worldwide commercial fish species, was used as a model. One sample group of fresh, skin-on carp fillets was placed in a bath of acidic electrolyzed oxidizing (AEO) water containing a solution of 100 mg/kg chloride ion concentration for 5 minutes. Another sample group was treated with acidic electrolyzed water and 0.5% lysozyme enzyme solution. Another set of samples were washed after the AEO water treatment. Within the study, a storage ...
Tópico(s): Identification and Quantification in Food
2020 - Hindawi Publishing Corporation | Journal of Food Quality
József Lehel, Rebecca Yaucat-Guendi, Lívia Darnay, Péter Palotás, Péter Laczay,
It is undeniable that with the popularity of sushi and sashimi over the last decade the consumption of raw fish has extremely increased. Raw fish is very appreciated worldwide and has become a major component of human diet because of its fine taste and nutritional properties. Possible hazards concerning fish safety and quality are classified as biological and chemical hazards. They are contaminants that often accumulate in edible tissue of fish and transmit to humans via the food chain affecting ...
Tópico(s): Isotope Analysis in Ecology
2020 - Taylor & Francis | Critical Reviews in Food Science and Nutrition
Rachid Hadjadj, Csaba Deák, Árpád Bence Palotás, Péter Mizsey, Béla Viskolcz,
The energy and raw material supplies are crucial issues in our societies. The possible solution of these issues can be coupled with the storage alternatives of renewable energy. The chemical way of energy storage can be quite different but we follow the Supplement of Natural Gas concept since this delivers a high storage capacity solution. The chemical way of energy storage is based on the carbon dioxide hydrogenation. It is in agreement with the theory of the circular economy so that the carbon ...
Tópico(s): Hybrid Renewable Energy Systems
2019 - Elsevier BV | Journal of Cleaner Production
Omar Abdul‐Rahman, Endre Kristóf, Quang‐Minh Doan‐Xuan, András Vida, Lilla Nagy, Ambrus Horváth, József Simon, T Marós, István Szentkirályi, Lehel Palotás, Tamás Debreceni, Péter Csizmadia, Tamás Szerafin, Tamás Fodor, Magdolna Szántó, Attila Tóth, Borbála Kiss, Zsolt Bacsó, Péter Bai,
Beige adipocytes are special cells situated in the white adipose tissue. Beige adipocytes, lacking thermogenic cues, morphologically look quite similar to regular white adipocytes, but with a markedly different response to adrenalin. White adipocytes respond to adrenergic stimuli by enhancing lipolysis, while in beige adipocytes adrenalin induces mitochondrial biogenesis too. A key step in the differentiation and function of beige adipocytes is the deacetylation of peroxisome proliferator-activated ...
Tópico(s): Adipokines, Inflammation, and Metabolic Diseases
2016 - Public Library of Science | PLoS ONE
Adrienn Tóth, Cs. Németh, Péter Palotás, József Surányi, Ildikó Csilla Nyulas-Zeke, Barbara Csehi, Lorenzo Álvarez del Castillo, László Friedrich, Cs. Balla,
High hydrostatic pressure (HHP) treatment of egg proteins partially limits their sensitivity to pressure. According to the literature, at the 450 MPa level, denaturation of some proteins sets in to the extent that sensory and functional characteristics are impacted. This study involved treating liquid egg (egg white, yolk, and melange) at less than the above-mentioned value, after which the microbiological effect was examined. For the study, pressure pouches were filled with 100ml of raw liquid egg ...
Tópico(s): Meat and Animal Product Quality
2017 - IOP Publishing | Journal of Physics Conference Series
B. Salamon, Adrienn Tóth, Péter Palotás, G. Südi, Barbara Csehi, Cs. Németh, László Friedrich,
The aim of the present study was to evaluate the effect of high hydrostatic pressure (HHP) processing (at 450 or 600 MPa for 300 s) on microbial quality as well as on organoleptic properties of fish salad with mayonnaise during 26 days of storage at 5 and 10 °C. The salad contained diced smoked trout fish, mayonnaise, and different kinds of spices. These freshly made salads usually have only a couple of days of shelf life. The HHP treatment basically did not affect the physical and organoleptic characteristics ...
Tópico(s): Advanced Chemical Sensor Technologies
2016 - Akadémiai Kiadó | Acta Alimentaria
Tamás Németh, Péter Jankovics, Júlia Németh-Palotás, Hilda Kőszegi-Szalai,
A micellar electrokinetic chromatographic (MEKC) method was developed for the quality control of paracetamol containing pharmaceutical preparations. The influence of several factors (surfactant concentration, buffer concentration, pH and applied voltage) was studied during development and optimisation of the method. Phosphate buffer (pH 9.0) containing sodium dodecyl sulphate (75 mM) was found as the ideal running buffer for the separation; the applied voltage was 25 kV and the analysis time was 10 ...
Tópico(s): Electrochemical Analysis and Applications
2008 - Elsevier BV | Journal of Pharmaceutical and Biomedical Analysis
Gábor Jónás, Barbara Csehi, Péter Palotás, Adrienn Tóth, György Kenesei, Klára Pásztor‐Huszár, László Friedrich,
The aim of this study was to investigate the effect of sodium nitrite and high hydrostatic pressure on the color, water holding capacity (WHC) and texture characteristics of frankfurter. Three hundred, 450 and 600 MPa (5 minutes; 20 °C) and 50, 75, 100 and 125 ppm (calculated on weight of meat) sodium nitrite were applied. Parameters were measured right after the pressure treatment. Data were evaluated with two-way analysis of variance (p 0.05) with pressure levels and sodium nitrite amounts as factors. ...
Tópico(s): Sensory Analysis and Statistical Methods
2017 - IOP Publishing | Journal of Physics Conference Series
I. Bakonyi, Franz D. Czeschka, L. F. Kiss, Vandri Ahmad Isnaini, Alexander Krupp, Krisztián Palotás, S. Zsurzsa, László Péter,
The magnetoresistance (MR) and the magnetization isotherms were studied up to high magnetic fields at T = 3 K and 300 K for a microcrystalline ($\mu$c) Ni foil corresponding to bulk Ni and for a nanocrystalline (nc) Ni foil. At T = 3 K, for the $\mu$c-Ni sample with a residual resistivity ratio (RRR) of 331, the field dependence of the resistivity was similar to what was reported previously for high-purity ferromagnets whereas the MR(H) behavior for the nc-Ni sample with RRR = 9 resembled that what was observed ...
Tópico(s): Metallic Glasses and Amorphous Alloys
2022 - Springer Science+Business Media | The European Physical Journal Plus
József Lehel, Melinda Plachy, Péter Palotás, András Bartha, Péter Budai,
Aquaculture products are important parts of human nutrition due to their healthy components; however, they may contain elements that are potentially toxic to consumers. The aim of the study was to detect the concentration of As, Cd, Hg, and Pb by inductively coupled plasma optical emission spectroscopy in rainbow trout (Oncorhynchus mykiss) originated from an aquaculture farm in Italy. The amount of As was 1.65 ± 0.49 mg/kg; however, the total As cannot be evaluated due to the absence of official regulation. ...
Tópico(s): Heavy metals in environment
2024 - Multidisciplinary Digital Publishing Institute | Fishes
Trung T. Pham, Péter Vancsó, Márton Szendrő, Krisztián Palotás, Roshan Castelino, Mehdi Bouatou, Cyril Chacon, Luc Henrard, Jérôme Lagoute, R. Sporken,
Abstract Stabilization of the 2 H phase of MoTe 2 during molecular beam epitaxy (MBE) growth on graphene terminated 6 H -SiC(0001) is highly desirable in order to take advantage of its promising properties in electronic applications. By properly adjusting the conditions, direct growth of the highly crystalline 2 H phase of MoTe 2 has been achieved. In such van der Waals heterostructure, the atomically-clean interface between graphene and MoTe 2 permits the electronic coupling between the adjacent ...
Tópico(s): Topological Materials and Phenomena
2022 - Nature Portfolio | npj 2D Materials and Applications
Péter Jankovics, Tamás Németh, Júlia Németh-Palotás, Hilda Kőszegi-Szalai,
Tópico(s): Analytical Chemistry and Chromatography
2008 - Springer Science+Business Media | Chromatographia
Gábor Vári, Csaba Vass, Gyula Halasi, László Szabó, Krisztián Palotás, Péter Dombi, András Berkó, László Óvári, Zoltán Kónya,
In this paper the thermal properties of Au and Rh deposits are compared on hexagonal boron nitride (h-BN) "nanomesh" prepared on Rh(1 1 1), applying STM, XPS, low energy ion scattering (LEIS), LEED, and DFT. At room temperature, both metals essentially follow Volmer-Weber (3D) growth. Upon subsequent annealing, agglomeration (sintering), intercalation, and desorption are competing surface processes for both metals. For the more reactive Rh, we suggest an additional encapsulation mechanism: between 600 ...
Tópico(s): Thermal properties of materials
2023 - Elsevier BV | Applied Surface Science
Péter Jankovics, Szilvia Lohner, András Darcsi, Júlia Németh-Palotás, Szabolcs Béni,
A new derivative of vardenafil was detected in an alleged herbal dietary supplement and identified as 2-(2-ethoxy-5-(4-(2-hydroxyethyl)piperazin-1-ylsulfonyl)phenyl)-5-methyl-7-propyl-imidazo[1,5-f][1,2,4]triazin-4(3H)-thione. Structure elucidation was carried out by LC-UV-MS/MS and NMR. Results obtained with high resolution MS and IR spectroscopy confirmed the proposed chemical structure. The compound was distinguished from hydroxyvardenafil, a second active substance identified in the same product, ...
Tópico(s): Pharmaceutical Quality and Counterfeiting
2012 - Elsevier BV | Journal of Pharmaceutical and Biomedical Analysis
József Lehel, Márta Magyar, Péter Palotás, Zsolt Abonyi‐Tóth, András Bartha, Péter Budai,
The popularity of seafoods is high due to their superb dietary properties and healthy composition. However, it is crucial to understand whether they adequately contribute to our essential nutritional needs. Small amounts of essential metals are indispensable in the human body to proper physiological functioning; their deficiency can manifest in various sets of symptoms that can only be eliminated with their intake during treatment or nutrition. However, the excessive consumption of metals can induce ...
Tópico(s): Heavy metals in environment
2023 - Multidisciplinary Digital Publishing Institute | Foods
Péter Trampus, János Dobránszky, Zsolt Kerner, Judit Knisz, Ferenc Oszvald, Béla Palotás, László Péter, Mihály Réger, Balázs Verő,
Corrosion degradation was observed in a nuclear power plant spent fuel cooling system. A systematic and comprehensive investigation program was developed to reveal the root cause of the degradation. Series of corrosion tests, mechanical, microstructural and microbiological investigations were carried out. Also, simulations of the operating conditions and welding parameters were performed. Based on the results, the major contributors to the degradation process were identified and a possible degradation ...
Tópico(s): Welding Techniques and Residual Stresses
2018 - IOP Publishing | IOP Conference Series Materials Science and Engineering
Péter Jankovics, András Váradi, László Tölgyesi, Szilvia Lohner, Júlia Németh-Palotás, Hilda Kőszegi-Szalai,
A fast and simple LC–MS/MS method was developed for screening mephedrone, butylone, methylenedioxypyrovalerone (MDPV), flephedrone, methylone and methedrone in bulk powder samples. Samples were separated on a reverse phase column using gradient elution with mixtures of water, acetonitrile and formic acid. After optimization a limit of detection of about 2 ng mL−1 was achieved using multiple reaction monitoring (MRM) mode. Total run time was less than 8 min. Typical fragmentation characteristics of ...
Tópico(s): Psychedelics and Drug Studies
2011 - Elsevier BV | Forensic Science International
Péter Jankovics, András Váradi, László Tölgyesi, Szilvia Lohner, Júlia Németh-Palotás, József Balla,
3-Naphthoyl- and 3-phenylacetylindoles represent a group of substances of cannabimimetic activity with affinities - strongly influenced by their functional groups - to cannabinoid receptors CB1 and CB2. Some of them have been described as ingredients of herbal blends also known as "smart products" by several research groups. Recently further cannabimimetic substances possessing new chemical structures like benzoylindoles and adamantoylindoles have emerged. In Hungary, two powder samples were seized by ...
Tópico(s): Psychedelics and Drug Studies
2011 - Elsevier BV | Forensic Science International
Melinda Plachy, András Bartha, Péter Budai, Péter Palotás, József Lehel,
Cd, Hg, and Pb concentrations were investigated in Sardina pilchardus fish. Samples originated from the Atlantic Northeast fishing area 27 and were analysed by inductively coupled plasma optical emission spectroscopy. The aim of the study was to estimate the health impact of consumption, based on the concentrations and calculated exposure for each element. Based on the average total arsenic concentration of 3.26 ± 0.39 mg/kg in the samples, the estimated inorganic arsenic content and calculated PTWI ...
Tópico(s): Environmental Toxicology and Ecotoxicology
2022 - Taylor & Francis | Food Additives and Contaminants Part B
Christiane Reitz, Shinya Tokuhiro, Lorraine N. Clark, Christopher Conrad, Jean‐Paul Vonsattel, Lili‐Naz Hazrati, András Palotás, R. Lantigua, Martin Medrano, Ivonne Z. Jiménez Velázquez, Badri N. Vardarajan, Irene Simkin, Jonathan L. Haines, Margaret A. Pericak ‐Vance, Lindsay A. Farrer, Joseph H. Lee, Ekaterina Rogaeva, Peter St George‐Hyslop, Richard Mayeux,
Sorting mechanisms that cause the amyloid precursor protein (APP) and the β-secretases and γ-secretases to colocalize in the same compartment play an important role in the regulation of Aβ production in Alzheimer's disease (AD). We and others have reported that genetic variants in the Sortilin-related receptor (SORL1) increased the risk of AD, that SORL1 is involved in trafficking of APP, and that underexpression of SORL1 leads to overproduction of Aβ. Here we explored the role of one of its homologs, ...
Tópico(s): Bioinformatics and Genomic Networks
2010 - Wiley | Annals of Neurology
Tamás Szerafin, Ágnes Horváth, T Marós, István Szentkirályi, Lehel Palotás, Péter Csizmadia, T Debteceni,
Methods Our aim was to evaluate the incidence of NOMI, to analyze results of treatment and to identify variables associated with mortality. Hospital records and clinical data of patients treated for NOMI during the last 12 years were reviewed. Clinical outcomes and factors influencing mortality were studied. Statistical analysis was performed to determine the significance of risk factors on mortality with Fisher exact test or c2 test in categorical variables. Wilcoxon rank test was used to test ...
Tópico(s): Aortic aneurysm repair treatments
2013 - BioMed Central | Journal of Cardiothoracic Surgery
József Lehel, Zita Papp, András Bartha, Péter Palotás, R Szabó, Péter Budai, Miklós Süth,
The consumption of marine fishes has a positive effect on a consumer’s health; however, it poses a potential risk due to their level of heavy metals in their body. Heavy metals can be naturally found in the environment, but their concentration can be increased with anthropogenic activities. Samples of tuna (Thunnus albacares) were collected at a fishery market. The potentially toxic elements (arsenic, cadmium, lead, and mercury) were determined with a validated method in the flesh of fish using inductively ...
Tópico(s): Heavy metals in environment
2023 - Multidisciplinary Digital Publishing Institute | Foods
Adrienn Tóth, Péter Palotás, Csaba Németh, Barbara Csehi, Lorenzo Álvarez del Castillo, László Friedrich, Csaba Balla, Péter Póti,
Fish under high hydrostatic pressure treatment goes through numerous changes. Our experiments served to determine optimal pressure and time parameters which, when applied, result in very small changes in product color, physical and chemical characteristics. Carp and zander samples were treated at 150, 250, 400, and 600 MPa in the Resato FPU-100-2010 system of Corvinus University’s Department of Refrigeration and Animal Products. Treatment duration were 2 and 5 minutes. To measure color, a MINOLTA ...
Tópico(s): Magnetic and Electromagnetic Effects
2015 - | Journal of Hygienic Engineering and Design
Gyula Halasi, Csaba Vass, Ka Man Yu, Gábor Vári, A.P. Farkas, Krisztián Palotás, András Berkó, János Kiss, Zoltán Kónya, Martin Aeschlimann, Benjamin Stadtmüller, Péter Dombi, László Óvári,
Abstract Surface templating by electrostatic surface potentials is the least invasive way to design large-scale artificial nanostructures. However, generating sufficiently large potential gradients remains challenging. Here, we lay the groundwork for significantly enhancing local electrostatic fields by chemical modification of the surface. We consider the hexagonal boron nitride (h-BN) nanomesh on Rh(111), which already exhibits small surface potential gradients between its pore and wire regions. ...
Tópico(s): Boron and Carbon Nanomaterials Research
2024 - Nature Portfolio | npj 2D Materials and Applications
Emil Palotás. Az Osztrák-Magyar Monarchia balkáni politikája a berlini kongresszus után, 1878–1881 [The Balkan Policy of the Austro-Hungarian Monarchy after the Congress of Berlin, 1878–1881]. Budapest: Akadémiai Kiadó, 1982. Pp. 284. - Volume 19 Issue 1
Tópico(s): Hungarian Social, Economic and Educational Studies
1983 - Cambridge University Press | Austrian History Yearbook
... and Biological Chemistry, 49, 1519– 1520. Daood HG, Palotás G, Palotás G, Somogyi G, Pék Z, Helyes L, 2014. ...
Tópico(s): Consumer Attitudes and Food Labeling
2015 - Wiley | EFSA Journal
Péter Jankovics, Tamás Németh, Júlia Németh-Palotás, Hilda Kőszegi-Szalai,
Summary A reversed-phase ion-pairing liquid chromatographic (RP-IP-HPLC) method for simultaneous assay of theophylline (TH), phenobarbital (PB), codeine (CD), and ephedrine (EP) in an extemporaneous (magistral) suppository was developed and validated and used to investigate a reported serious adverse event. Samples were dissolved in dichloromethane and extracted by two-step liquid-liquid extraction with acetate buffer (pH 5.0) and, subsequently, 0.1 m NaOH solution. Separation was performed on an end-capped ...
Tópico(s): Microfluidic and Capillary Electrophoresis Applications
2010 - University of Silesia in Katowice | Acta Chromatographica
J. G. Contreras, J. D. Tapia Takaki,
... pA collisions at high energiesV. P. Gonçalves, R. Palota da Silva and P. V. R. G. Silva18 ...
Tópico(s): Quantum Chromodynamics and Particle Interactions
2015 - World Scientific | International Journal of Modern Physics A
János György Papp, Ákos Kiss, Krisztián Balogh, László Kostyál, Imre Tóth, Tibor Gáll, Péter Vajda, Tamás F. Molnár, I. Papp, László Szabó, Árpád Bence Palotás,
Background:Computer-aided design (CAD) has been used in the Nuss procedure to determine the bar length and shape.Despite computer aid, the shape and design remain quite intuitive.We tested a new algorithm to determine the optimal bar shape. Material/Methods:The normal sterno-vertebral distance was defined on computed tomography (CT) scans of patients without pectus excavatum (PEx) at the same level where the deepest depression was found on CT scans of 97 patients with PEx.Four points were marked on ...
Tópico(s): Reconstructive Surgery and Microvascular Techniques
2024 - International Scientific Information Inc. | Medical Science Monitor
Christopher van Dyck, Fumihiko Yasuno, Miho Ota, Jun Kosaka, Hiroshi Ito, Makoto Higuchi, TALANT K. DORONBEKOV, Shoko Nozaki, Yota Fujimura, Michihiko Koeda, Takashi Asada, Tetsuya Suhara, Cameron Carter, Stephan Heckers, Thomas Nichols, Daniel Pine, Stephen C. Strother, Lucilla Parnetti, Pietro Tiraboschi, Alessia Lanari, Maria Peducci, Chiara Padiglioni, Cataldo Amore, Laura Pierguidi, Nicola Tambasco, Aroldo Rossi, Paolo Calabresi, Alexa Stern, Antonina A. Savostyanova, Aaron L. Goldman, Alan Barnett, Jan Willem, C Van Der Veen, Joseph H. Callicott, Venkata S. Mattay, Daniel R. Weinberger, Stefano Marenco, Mounira Banasr, Ronald S. Duman, Davangere Devanand, Xinhua Liu, Matthias H. Tabert, Gnanavalli Pradhaban, Katrina Cuasay, Karen L. Bell, Mony J. de Leon, Richard L. Doty, Yaakov Stern, Gregory H. Pelton, Glenda MacQueen, Kaan Yucel, Valerie H. Taylor, Kathryn Macdonald, Russell T. Joffe, Shannon L. Gourley, Drew D. Kiraly, Jessica Howell, Peter Olausson, Jane R. Taylor, Anto ́nio, Luís Teixeira, Helton José Reis, Fernanda Oliveira Coelho, Daniel S. Carneiro, Mauro Martins Teixeira, Luciene Bruno Vieira, Marat A. Mukhamedyarov, А. Л. Зефиров, Zolta ́n, Andra ́s Palota, Lucile Capuron, Shaoyong Su, Andrew S. Miller, J. Douglas Bremner, Jack Goldberg, Gerald Vogt, Carisa Maisano, Linda Jones, Nancy Murrah, Viola Vaccarino, Hilary P. Blumberg, Fei Wang, Lara G. Chepenik, Jessica H. Kalmar, E. Kale Edmiston, Joel Gelernter,
2008 - Elsevier BV | Biological Psychiatry