Search results for: M. Molnár

Items from 1 to 20 out of 138 results

article

Solution Combustion Synthesis of Complex Oxide Semiconductors

M. K. Hossain, E. Kecsenovity, A. Varga, M. Molnár, more

International Journal of Self-Propagating High-Temperature Synthesis > 2018 > 27 > 3 > 129-140

This is a perspective of the role that combustion synthesis, specifically solution combustion synthesis, has played in the development of ternary and quaternary metal oxide semiconductors, and materials derived from these compounds such as composites, solid solutions, and doped samples. The attributes of materials, collectively termed ‘complex oxides’ within the context of this discussion, are discussed...

article

New chronology of the best developed loess/paleosol sequence of Hungary capturing the past 1.1 ma: Implications for correlation and proposed pan-Eurasian stratigraphic schemes

P. Sümegi, S. Gulyás, D. Molnár, B.P. Sümegi, more

Quaternary Science Reviews > 2018 > 191 > C > 144-166

In this paper, we are presenting a revised chronology of the best developed, longest (100 m) LPS in Hungary dating back 1.1 Ma: borehole Udvari-2A. It is based on a non-tuned age-depth model, built on the position of the Matuyama-Brunhes Boundary, Jaramillo and Olduvai Subchrons. Furthermore, on the assignment of formerly recorded uninterpreted geomagnetic reversals in both chrons. Other chronometric...

article

Coumarinyl Thiosemicarbazides as Antimicrobial Agents

M. Molnar, M. Tomić, V. Pavić

Pharmaceutical Chemistry Journal > 2018 > 51 > 12 > 1078-1081

Two series of coumarinyl thiosemicarbazides were synthesized: one, using the coumarin core substituted in position 7 and another, using same core substituted in position 4. All these compounds were obtained in reactions of the corresponding hydrazide and various isothiocyanates. The structures of all products were confirmed by the ¹H and ¹³C NMR and mass spectrometry techniques. The antimicrobial...

article

Effects of 5-Hydroxymethylcytosine Epigenetic Modifications within the VEGF Promoter Region on G-Quadruplex and I-Motif DNA Structure and Stability

Michael M. Molnar, Rhianna K. Morgan, Tracy A. Brooks, Randy M. Wadkins

Biophysical Journal > 2017 > 112 > 3 Supplement 1 > 68a

article

Impact of the Fukushima accident on tritium, radiocarbon and radiocesium levels in seawater of the western North Pacific Ocean: A comparison with pre-Fukushima situation

P.P. Povinec, L. Liong Wee Kwong, J. Kaizer, M. Molnár, more

Journal of Environmental Radioactivity > 2017 > 166 > P1 > 56-66

Tritium, radiocarbon and radiocesium concentrations in water column samples in coastal waters offshore Fukushima and in the western North Pacific Ocean collected in 2011–2012 during the Ka'imikai-o-Kanaloa (KoK) cruise are compared with other published results. The highest levels in surface seawater were observed for ¹³⁴Cs and ¹³⁷Cs in seawater samples collected offshore Fukushima (up to 1.1 Bq L⁻¹...

article

Cytomolecular discrimination of the Am chromosomes of Triticum monococcum and the A chromosomes of Triticum aestivum using microsatellite DNA repeats

M. Megyeri, P. Miko, A. Farkas, M. Molnar-Lang

Journal of Applied Genetics > 2017 > 58 > 1

article

Mössbauer study of pH dependence of iron-intercalation in montmorillonite

E. Kuzmann, V. K. Garg, H. Singh, A. C. de Oliveira, more

Hyperfine Interactions > 2016 > 237 > 1 > 1-6

⁵⁷Fe Mössbauer spectroscopy and XRD have successfully been applied to show the incorporation of Fe ion into the interlayer space of montmorillonite via treatment with FeCl ₃ in acetone. The 78K ⁵⁷Fe Mössbauer spectra of montmorillonite samples reflected magnetically split spectrum part indicating the intercalation of iron into the interlayer of montmorillonite via the treatment with FeCl ₃+acetone...

article

A simple and reliable medium-throughput method to measure relative telomere length in Sand Martins Riparia riparia

S. Smith, R.H. Wagner, T. Szep, F. Hoelzl, more

Acta Ornithologica > 2016 > 51 > 1

The rate of telomere loss is increasingly being used as a marker of biological aging, organismal senescence, and survival probability. These protective ends of chromosomes act to protect coding DNA during replication and by buffering against degradation from reactive oxygen species (ROS). In many organisms, telomere loss has been linked to increased levels of metabolism, biological stress and disease...

article

Photosynthetic responses of a wheat (Asakaze)–barley (Manas) 7H addition line to salt stress

D. Szopkó, É. Darkó, I. Molnár, K. Kruppa, more

Photosynthetica > 2017 > 55 > 2 > 317-328

The photosynthetic responses to salt stress were examined in a wheat (Triticum aestivum L. cv. Asakaze)–barley (Hordeum vulgare L. cv. Manas) 7H addition line having elevated salt tolerance and compared to the parental wheat genotype. For this purpose, increasing NaCl concentrations up to 300 mM were applied and followed by a 7-day recovery period. Up to moderate salt stress (200 mM NaCl), forcible...

article

Advances in Understanding Environmental Risks of Red Mud After the Ajka Spill, Hungary

W. M. Mayes, I. T. Burke, H. I. Gomes, Á. D. Anton, more

Journal of Sustainable Metallurgy > 2016 > 2 > 4 > 332-343

In the 5 years since the 2010 Ajka red mud spill (Hungary), there have been 46 scientific studies assessing the key risks and impacts associated with the largest single release of bauxite-processing residue (red mud) to the environment. These studies have provided insight into the main environmental concerns, as well as the effectiveness of remedial efforts that can inform future management of red...

chapter

Distributed monitoring in 6LoWPAN based Internet of Things

B. Mostafa, A. Benslimane, E. Boureau, M. Molnar, more

2016 International Conference on Selected Topics in Mobile & Wireless Networking (MoWNeT) > 1 - 7

2016 International Conference on Selected Topics in Mobile & Wireless Networking (MoWNeT)

The emergence of the Internet of Things (IoT) is introducing more and more services and applications such as smart cities. For some services, the availability of elements and the connectivity between them are necessary. The robust functioning of a fragile and often dynamic system in IoT needs strong monitoring which is investigated in this paper. IPv6 Routing Protocol for Low Power and Lossy Networks...

article

Radiocarbon signal of a low and intermediate level radioactive waste disposal facility in nearby trees

R. Janovics, D.I. Kelemen, Z. Kern, S. Kapitány, more

Journal of Environmental Radioactivity > 2016 > 153 > C > 10-14

Tree ring series were collected from the vicinity of a Hungarian radioactive waste treatment and disposal facility and from a distant control background site, which is not influenced by the radiocarbon discharge of the disposal facility but it represents the natural regional ¹⁴C level. The ¹⁴C concentration of the cellulose content of tree rings was measured by AMS. Data of the tree ring series from...

article

McGISH identification and phenotypic description of leaf rust and yellow rust resistant partial amphiploids originating from a wheat x Thinopyrum synthetic hybrid cross

K. Kruppa, E. Turkosi, M. Mayer, V. Toth, more

Journal of Applied Genetics > 2016 > 57 > 4

article

Mössbauer study of the effect of rare earth substitution into montmorillonite

E. Kuzmann, L. H. Singh, V. K. Garg, A. C. Oliveira, more

Hyperfine Interactions > 2016 > 237 > 1 > 1-8

Novel montmorillonites were prepared by the exchange of the interlayer cations with a series of rare earth cations (La, Ce, Pr, Nd, Sm, Eu, Gd, Dy, Ho, and Er) and characterized by XRD, XRF, SEM, chemical analysis and ⁵⁷Fe Mössbauer spectroscopy. An unexpected magnetically split component, assigned to iron being in the interlayer space, was observed in the Mössbauer spectra at 78K in some rare earth...

article

Constraints on the timing of Quaternary volcanism and duration of magma residence at Ciomadul volcano, east–central Europe, from combined U–Th/He and U–Th zircon geochronology

S. Harangi, R. Lukács, A.K. Schmitt, I. Dunkl, more

Journal of Volcanology and Geothermal Research > 2015 > 301 > C > 66-80

High-spatial resolution zircon geochronology was applied to constrain the timescales of volcanic eruptions of the youngest, mostly explosive volcanic phase of Ciomadul volcano (Carpathian–Pannonian region, Romania). Combined U–Th and (U–Th)/He zircon dating demonstrates that intermittent volcanic eruptions occurred in a time range of 56–32ka. The reliability of the eruption dates is supported by concordant...

article

Central nervous system-specific alterations in the tryptophan metabolism in the 3-nitropropionic acid model of Huntington's disease

Gábor Veres, Máté Molnár, Dénes Zádori, Márton Szentirmai, more

Pharmacology, Biochemistry and Behavior > 2015 > 132 > Complete > 115-124

Experiments on human samples and on genetic animal models of Huntington's disease (HD) suggest that a number of neuroactive metabolites in the kynurenine (KYN) pathway (KP) of the tryptophan (TRP) catabolism may play a role in the development of HD. Our goal in this study was to assess the concentrations of TRP, KYN, kynurenic acid and 3-hydroxykynurenine (3-OHK) in the serum and brain of 5-month-old...

article

Low dosage of rimonabant leads to anxiolytic-like behavior via inhibiting expression levels and G-protein activity of kappa opioid receptors in a cannabinoid receptor independent manner

Ferenc Zádor, Nikolett Lénárt, Balázs Csibrány, Miklós Sántha, more

Neuropharmacology > 2015 > 89 > Complete > 298-307

What is known: There is an increasing number of studies demonstrating the direct effect of the cannabinoid receptor 1 (CB ₁ ) antagonist/inverse agonist rimonabant on the opioid system. The kappa opioid receptors (KORs) are well known to mediate depression- and anxiety-like behavior. Clinical studies on chronic rimonabant administration have revealed that rimonabant leads to a very similar...

article

Characterization of shear stress distribution on a flat roof with solar collectors

T. Thiis, A. D. Ferreira, M. Molnar, A. V. Erichsen

Czasopismo Techniczne. Budownictwo > 2015 > Y. 112, iss. 2-B > 359--368

In the search for new renewable energy sources, photovoltaic systems and solar thermal collectors have become more common in buildings. With increased efficiency and demand for energy, solar power has also become exploitable at higher latitudes where snow is a major load on buildings. For flat roofs, one usually expects approximately 80% of the snow to be eroded off the roof surface. Installing solar...

article

Constructing an alternative wheat karyotype using barley genomic DNA

D. Icso, M. Molnar-Lang, G. Line

Journal of Applied Genetics > 2015 > 56 > 1

chapter

Influence of structure geometry and bulk traps on switching transients of InAlN/GaN HEMT

J. Marek, A. Satka, D. Donoval, M. Molnar, more

The Tenth International Conference on Advanced Semiconductor Devices and Microsystems > 1 - 4

2014 10th International Conference on Advanced Semiconductor Devices & Microsystems (ASDAM)

Impact of structure geometry and bulk traps on the performance of the n⁺⁺GaN/InAlN/AlN/GaN high electron mobility transistor (HEMT) using two-dimensional Sentaurus TCAD simulation tool were investigated. Simulations were performed by the electrophysical models calibrated on real devices. The results indicate a significant influence of both acceptor and donor traps on device switching characteristics.

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Search results for: M. Molnár

Solution Combustion Synthesis of Complex Oxide Semiconductors

New chronology of the best developed loess/paleosol sequence of Hungary capturing the past 1.1 ma: Implications for correlation and proposed pan-Eurasian stratigraphic schemes

Coumarinyl Thiosemicarbazides as Antimicrobial Agents

Effects of 5-Hydroxymethylcytosine Epigenetic Modifications within the VEGF Promoter Region on G-Quadruplex and I-Motif DNA Structure and Stability

Impact of the Fukushima accident on tritium, radiocarbon and radiocesium levels in seawater of the western North Pacific Ocean: A comparison with pre-Fukushima situation

Cytomolecular discrimination of the Am chromosomes of Triticum monococcum and the A chromosomes of Triticum aestivum using microsatellite DNA repeats

Mössbauer study of pH dependence of iron-intercalation in montmorillonite

A simple and reliable medium-throughput method to measure relative telomere length in Sand Martins Riparia riparia

Photosynthetic responses of a wheat (Asakaze)–barley (Manas) 7H addition line to salt stress

Advances in Understanding Environmental Risks of Red Mud After the Ajka Spill, Hungary

Distributed monitoring in 6LoWPAN based Internet of Things

Radiocarbon signal of a low and intermediate level radioactive waste disposal facility in nearby trees

McGISH identification and phenotypic description of leaf rust and yellow rust resistant partial amphiploids originating from a wheat x Thinopyrum synthetic hybrid cross

Mössbauer study of the effect of rare earth substitution into montmorillonite

Constraints on the timing of Quaternary volcanism and duration of magma residence at Ciomadul volcano, east–central Europe, from combined U–Th/He and U–Th zircon geochronology

Central nervous system-specific alterations in the tryptophan metabolism in the 3-nitropropionic acid model of Huntington's disease

Low dosage of rimonabant leads to anxiolytic-like behavior via inhibiting expression levels and G-protein activity of kappa opioid receptors in a cannabinoid receptor independent manner

Characterization of shear stress distribution on a flat roof with solar collectors

Constructing an alternative wheat karyotype using barley genomic DNA

Influence of structure geometry and bulk traps on switching transients of InAlN/GaN HEMT

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