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Pamjav H.,Institute of Forensic Medicine | Zalan A.,Institute of Forensic Medicine | Beres J.,National Center for Healthcare Audit and Improvement | Nagy M.,J. Selye University
American Journal of Physical Anthropology | Year: 2011

According to written sources, Roma (Romanies, Gypsies) arrived in the Balkans around 1,000 years ago from India and have subsequently spread through several parts of Europe. Genetic data, particularly from the Y chromosome, have supported this model, and can potentially refine it. We now provide an analysis of Y-chromosomal markers from five Roma and two non-Roma populations (N = 787) in order to investigate the genetic relatedness of the Roma population groups to one another, and to gain further understanding of their likely Indian origins, the genetic contribution of non-Roma males to the Roma populations, and the early history of their splits and migrations in Europe. The two main sources of the Roma paternal gene pool were identified as South Asian and European. The reduced diversity and expansion of H1a-M82 lineages in all Roma groups imply shared descent from a single paternal ancestor in the Indian subcontinent. The Roma paternal gene pool also contains a specific subset of E1b1b1a-M78 and J2a2-M67 lineages, implying admixture during early settlement in the Balkans and the subsequent influx into the Carpathian Basin. Additional admixture, evident in the low and moderate frequencies of typical European haplogroups I1-M253, I2a-P37.2, I2b-M223, R1b1-P25, and R1a1-M198, has occurred in a more population-specific manner. © 2011 Wiley-Liss, Inc. Source

Krivosudsky L.,Comenius University | Schwendt P.,Comenius University | Simunek J.,Comenius University | Gyepes R.,J. Selye University
Chemistry - A European Journal | Year: 2014

Reported herein is a simple synthetic and crystallization procedure for sequential isolation of two stereoisomers of isoleucine-derived vanadium(V) complexes from a racemic mixture with three stereogenic centers and therefore eight hypothetical species. The products of this crystallization were characterized by electronic and vibrational circular dichroism, NMR spectroscopy, and polarimetry to compare the chiroptic properties of the enantiomerically pure analogues prepared from L-isoleucine and D-allo-isoleucine. NMR studies pointed to the yet unobserved phenomenon of vanadium-catalyzed epimerization of isoleucine. Vanadium-controlled resolution of stereoisomers: NBu4[VO2(N-salicylidene-L-isoleucinato)] is the first product of crystallization from a mixture containing Schiff bases derived from racemic isoleucine and vanadate accessible as a pure compound. Vanadium-catalyzed epimerization of isoleucine was observed in the solutions of [VO2(N-salicylidene-isoleucinato)]- complexes (see figure). © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Source

Makovicky P.,J. Selye University | Nagy M.,J. Selye University | Makovicky P.,Czech University of Life Sciences
Chilean Journal of Agricultural Research | Year: 2013

Morphological udder traits have recently become of greater interest from farmers to researchers. In dairy ewes, the udder is very important due to its physiological and conformational characteristics. External udder traits were measured in ewes (Ovis aries L.) of nine genotypes (355 ewes) created of the basis of Improved Valachian (IV), Tsigai (T), and Lacaune (LC) breeds (six traits; 1185 data for each trait) during the milking period 2002-2008. Udder measurements were assessed for: udder length (UL), udder width (UW), rear udder depth (RUD), cistern depth (CDE), teat length (TL), and teat angle (TA). Data were processed by restricted maximum likelihood (REML) methodology using a MIXED procedure from the SAS statistical package. All studied parameters were influenced by the genotype (P < 0.001), many of them also by the effect of parity and lactation stage. The exactly detected UL, UW and RUD during the lactation and with the age of ewes expand gradually (P < 0.001). Teat length was greater in older ewes (expanding, with the parity). Indicator TA during lactation worsened. Crosses with 25 to 75% share of genetic dairy breeds (in particular with LC, to a lesser extent 'East Friesian' - EF) were in most cases larger than the udder cisterns of purebred ewes T and IV. Purebred LC had the largest udders, with the largest cisterns. In conclusion, crosses with specialized dairy breeds have more suitable udders for machine milking than purebred default breeds (T, IV, LC) and are suitable for machine milking. Source

Domokos C.,TU Munich | Kato Z.,University of Szeged | Kato Z.,J. Selye University
IEEE Transactions on Pattern Analysis and Machine Intelligence | Year: 2016

This paper addresses the problem of simultaneous estimation of different linear deformations, resulting in a global non-linear transformation, between an original object and its broken fragments. A general framework is proposed without using correspondences, where the solution of a polynomial system of equations directly provides the parameters of the alignment. We quantitatively evaluate the proposed algorithm on a large synthetic dataset containing 2D and 3D images, where linear (rigid-body and affine) transformations are considered. We also conduct an exhaustive analysis of the robustness against segmentation errors and the numerical stability of the proposed method. Moreover, we present experiments on 2D real images as well as on volumetric medical images. © 1979-2012 IEEE. Source

Almasi M.,Pavol Jozef Safarik University | Zelenak V.,Pavol Jozef Safarik University | Gyepes R.,J. Selye University | Zukal A.,J. Heyrovsky Institute of Physical Chemistry | Cejka J.,J. Heyrovsky Institute of Physical Chemistry
Colloids and Surfaces A: Physicochemical and Engineering Aspects | Year: 2013

Porous metal-organic framework {[Zn2 (MTB)(H2 O)2 ] 3H2 O 3DMF}n (where MTB=methanetetrabenzoate, DMF=N,N'-dimethylformamide) was prepared by solvothermal route and characterized by elemental analysis, FT-IR spectroscopy, thermal analysis coupled with mass spectrometry, single-crystal X-ray diffraction and adsorption of nitrogen and carbon dioxide. Structure of the compound is formed by the clusters of paddle-wheel secondary building units (SBUs) with composition [Zn2 (H2 O)2 (COO)4 ] (COO=carboxylate group), which are interconnected through tetraphenylmethane core of MTB4- ligand with tetrahedral spatial arrangement. This interconnection gives rise to the final 3D porous structure of the compound with the channels propagating along a, b and c crystallographic axes. The sizes of the channel openings, after substraction of van der Waals radii of the atoms, were 21.2×6.0, 9.0×9.0 and 6.0×6.0A2. The accessibility of the pores for the guest molecules was revealed by the measurements of adsorption of nitrogen and carbon dioxide. The specific surface area determined from nitrogen adsorption at 77K using BET equation was 248m2 g-1, and the pore volume calculated using t -plot was 0.0891cm3 g-1 Sorption of carbon dioxide was performed at two temperatures 273 and 293K giving the sorption capacities 5.67 and 4.74wt.%, respectively. © 2012 Elsevier B.V. Source

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