bluuebunny/crossref_metadata_2025_split huggingface dataset:
Implementation of chemometric techniques for evaluation of antioxidant properties of Camellia sinensis extracts
Authors: Ronowicz Joanna , Kupcewicz Bogumiła , Budzisz Elżbieta 
Published: March 2014

Abstract
In this study, antioxidant properties of commercial green teas and dietary supplements containing Camellia sinensis extracts were evaluated. Extracts were examined using two antioxidant assays (DPPH· radical method and ABTS·+ cation radical method). A Folin-Ciocalteu assay was used to evaluate the total polyphenol content in the extracts. In order to compare and characterize the investigated Camellia sinensis extracts, chemometric techniques based on fingerprint chromatograms, antioxidant activity and total polyphenol content were applied. Application of chemometric methods allowed for reduction of multidimensionality of the data set and grouped the samples into differentiable clusters. The relationship between the antioxidant activity and total polyphenol content was also assessed. The results indicated that extracts with the higher polyphenolic content exhibited the stronger antiradical activity against both DPPH· radicals and ABTS·+ cation radicals. The multivariate calibration technique (such as a tree regression algorithm) can be a useful tool for rapid determining the antioxidant activity of a herbal product based on its fingerprint chromatogram
Synthesis and antiproliferative activity in vitro of new 2-aminobenzimidazole derivatives. Reaction of 2-arylideneaminobenzimidazole with selected nitriles containing active methylene group
Authors: Nowicka Anna , Liszkiewicz Hanna , Nawrocka Wanda , Wietrzyk Joanna , Kempińska Katarzyna , Dryś Andrzej 
Published: March 2014

Abstract
A series of pyrimido[1,2-a]benzimidazole and α-cyanocinnamic acid derivatives have been synthesized in the reactions of Schiff bases 2–7 with selected nitriles containing an active methylene group: malononitrile 8–12, cyanoacetamide 13–16, benzyl cyanide 17–21, benzoylacetonitrile 22–24, cyanoacetate methyl ester 25–28 and benzylacetamide 29. The structures 8–29 were confirmed by the results of elementary analysis and their IR, 1H-, 13C-NMR and MS spectra. The products 8–29 of various chemical structure pyrimido[1,2-a] benzimidazole 8–12, 14–16, 17–21, 23–24, 26 and α-cyanocinnamic acid derivatives 13, 22, 25, 27, 28 were obtained, which are of interest for biological studies or which can be substrates for further synthesis. The selected compounds 10, 13, 14, 17, 19, 21, 23–25 and 28 were screened for their antiproliferative activity in vitro against neoplastic and normal cell lines. The most active two compounds were: 2-(o-bromophenylene)-3-cyano-4-phenyl-1,2-dihydropyrimido[1,2-a]benzimidazole (24) and 3-cyano-4-phenyl-2-(2,4-dimethoxyphenyl)-1,2-dihydropyrimido[1,2-a]benzimidazole (23). However, similarly like cisplatin used as the control, they showed no selectivity towards cancer cells, by inhibiting proliferation of normal mouse fibroblasts in similar manner.
Wong’s equations in Yang-Mills theory
Authors: Storchak Sergey 
Published: March 2014

AbstractWong’s equations for the finite-dimensional dynamical system representing the motion of a scalar particle on a compact Riemannian manifold with a given free isometric smooth action of a compact semi-simple Lie group are derived. The equations obtained are written in terms of dependent coordinates which are typically used in an implicit description of the local dynamics given on the orbit space of the principal fiber bundle. Using these equations, we obtain Wong’s equations in a pure Yang-Mills gauge theory with Coulomb gauge fixing. This result is based on the existing analogy between the reduction procedures performed in a finite-dimensional dynamical system and the reduction procedure in Yang-Mills gauge fields.
Electrical characterization of polymer matrix — TiO2 filler composites through isothermal polarization / depolarization currents and I–V tests
Authors: Stavrakas Ilias , Triantis Dimos , Hloupis George , Moutzouris Konstantinos 
Published: March 2014

AbstractSpecimens of polymer matrix — ceramic TiO2 filler composites were prepared. The contribution of the filler content on the electrical conductivity and energy storage properties of the samples was examined. I–V and Isothermal Polarization/Depolarization Current (IPC/IDC) measurements were conducted. Dc conductivity values directly calculated from the I–V curves exhibited excellent agreement with corresponding values derived from the IPC/IDC recordings. Standard models were employed for fitting the IPC/IDC data. In specific, the short and the very long depolarization times were fitted by use of power laws of different slopes, while the intermediate depolarization times were fitted as a sum of three exponential decays. The present study reveals a strong dependence of the depolarization and polarization processes, as well as of the dc conductivity, on the filler concentration.
Successfulness of Slovenian Economomic Transition?
Authors: Prijon Lea 
Published: March 2014

AbstractAt the beginning of nineties, countries from so-called communist block had experienced transformation process from socialist regime to a democratic one, and transformation from centrally planned economy into a free market economy. Many countries had gone through process of transition, but it had different results and effects on individual countries and societies. The success of transition is strongly linked with country’s history and cultural bases; it depends on country’s openness to specific reforms and on the approach of transition (shock therapy or gradualism). Slovenia was initially seen as a country with the best starting position at the beginning of transition, compared to other countries that went through the same process. However, today Slovenia is facing problems regarding economic system, political system, civil society etc. Today’s situation in Slovenia seems to be much worse than it is in some other transition countries with worse starting position. The purpose of the article will be to examine Slovenian transition compared to other countries and detaching factors that disabled its full development.
The Public and the Political – Concepts Reactivated by the Crisis
Authors: Stena Ján 
Published: March 2014

Abstract
The paper commences with a survey of classical concepts of public/ness. It pursues two intellectual traditions - the ones created by the political philosophy and legal sciences, as well as those created by sociology and psychology. Consequently, the paper provides a survey of inspirations present in the main contemporary concepts of the public (Arendt, Habermas). All this together forms a basis for an attempt to find terminological solutions suitable for contemporary research, both theoretical and empirical. The paper results in thoughts on the revitalisation of the public and the political. It concludes with a hypothesis about the penetration of the social into the political.
Seasonal Changes In Species Diversity And Dominance Structure In Communities Of Oribatid Mites (Sarcoptiformes, Oribatei) In Megalopolis Green Areas
Authors: Shevchenko O. S. , Kolodochka L. A. 
Published: March 2014

Abstract
Species complexes of oribatid mites in soil and litter in 10 plots in green areas of different parts of Kyiv city in April-September 2011 were studied. In total, 107 species of 76 genera of 44 families of oribatids were found. Trends of seasonal fluctuations of species diversity and dominance structure of oribatids in studied plots were assessed.
A Review of the Subfamily Rhyssinae (Hymenoptera, Ichneumonidae) from the Ukrainian Carpathians
Authors: Varga A. 
Published: March 2014

Abstract
The subfamily Rhyssinae is recorded from the Ukrainian Carpathians for the first time. Rhyssa kriechbaumeri Ozols, 1973 is a new record for Ukraine. A key to species of the Ukrainian Carpathians is provided. Seasonal dynamics and high-altitude zone distribution of the Rhyssinae are discussed.
Mining Flies of the Genus Ophiomyia (Diptera, Agromyzidae) of Eastern Ukraine and Adjacent Territories: Review of the Species Without a Fasciculus
Authors: Guglya Yu. A. 
Published: March 2014

Abstract
Mining flies of the genus Ophiomyia Braschnikov, 1897 occurring in the eastern part of Ukraine and some bordering regions are reviewed. In this paper, twelve species without fasciculus in both females and males, are described and figured, including Ophiomyia adunca Guglya, sp. n. and O. vanyushai Guglya, sp. n. Information on distribution, host plants and bionomics of each species is provided. A key to species of Ophiomyia known to occur in Ukraine is compiled.
Breeding Biology of Blackheaded Wagtail, Motacilla feldegg (Passeriformes, Motacillidae, Motacillinae), in Rostov Oblast of Russia
Authors: Muraviev I. V. , Artemieva E. A. 
Published: March 2014

Abstract
Species-specific features of blackheaded wagtail, Motacilla feldegg Michahelles, 1830, breeding biology were identified in the Rostov oblast of Russia. A tendency to current species range shift is traced.
Ruff , Philomachus pugnax (Aves, Charadriiformes), Migration in Western Ukraine
Authors: Strus Iu. 
Published: March 2014

Abstract
In the paper we discuss migration dynamics, biometry and stopover ecology of Ruff (Philomachus pugnax Linnaeus, 1758) in the Cholgini ornithological reserve. Also the observations, made in other regions of the western Ukraine, were used in the analysis. Th e base materials for this paper were collected during 1995-2012 by West-Ukrainian ornithological station, by conducting regular bird counts, ringing and taking measurements of migrating waders using standard methods. During Ruff spring migration two major waves of passage occured: the first one is from the end of March till early April and the second - from the end of April to the end of May. Th e average number of a flock was equal 12 individuals. In the autumn passage dynamics of two waves can also be seen. Th e fist wave is observed in July with the peak in the middle of month. Second wave occurs in August and in fist two decades of September, with maximum bird numbers in the end of August. Th e passage dynamic of Ruff in the Cholgini reserve is very similar to the dynamic in other continental staging sites. Significant difference was found in the wing length between the adult and juvenile Ruff s. Th e potential flight range of juvenile females was 3236 km, juvenile males - 2380 km, adult females - 2740 km.
New Prey Fishes in Diet of Black Sea Bottlenose Dolphins, Tursiops truncatus (Mammalia, Cetacea)
Authors: Gladilina E. V. , Gol’din P. E. 
Published: March 2014

Abstract
We report 7 new prey fishes in diet of the Black Sea bottlenose dolphins Tursiops truncatus (Montagu, 1821) and the first records of 9 prey items from their stomach contents: herring (Alosa sp.), sand smelt (Atherina sp.), horse mackerel (Trachurus mediterraneus), picarel (Spicara flexuosa), Mediterranean sand eel (Gymnammodytes cicerellus), Atlantic stargazer (Uranoscopus scaber), garfish (Belone belone), gobies (Gobiidae indet.) and blennies (Blenniidae indet.). Th e Atlantic stargazer was recorded as a prey species for the common bottlenose dolphin for the first time. Th e horse mackerel and the picarel, formerly recorded in the diet of Mediterranean bottlenose dolphins, now were frequently found in the examined Black Sea dolphins. Th e list of prey fishes for Black Sea bottlenose dolphins now includes 23 items, with many small pelagic and demersal fishes, and it is similar to that of Mediterranean dolphins. Whiting (Merlangius merlangus) is still an important prey species, as 50-70 years ago, whereas turbot (Psetta maeotica), not recorded by us, could lose its importance due to population decline. As before, red mullet (Mullus barbatus) is recorded in winter feeding. Feeding on mullets (Mugilidae) is not a universal trait, and it is possibly restricted to local geographical areas.
The production of 238–242Pu(n,γ)239–243Pu fissionable fluids in a fusion-fission hybrid reactor
Authors: Günay M. 
Published: March 2014

Abstract
In this study, the effect of spent fuel grade plutonium content on 239–243Pu was investigated in a designed hybrid reactor system. In this system, the fluids were composed of a molten salt, heavy metal mixture with increased mole fractions 99 – 95 % Li20Sn80-1 – 5 % SFG-Pu, 99 – 95 % Li20Sn80-1 – 5 % SFG-PuF4, 99 – 95 % Li20Sn80-1 – 5 % SFG-PuO2. Beryllium (Be) is a neutron multiplier by (n,2n) reactions. Thence, a Be zone of 3 cm thickness was used in order to contribute to fissile fuel breeding between the liquid first wall and a 9Cr2WVTa ferritic steel blanket which is used as structural material. The production of 238–242Pu(n,γ)239–243Pu was calculated in liquid first wall, blanket and shielding zones. Three-dimensional nucleonic calculations were performed by using the most recent version MCNPX-2.7.0 Monte Carlo code and nuclear data library ENDF/B-VII.0.
Can mechanical stresses noticeably influence the diffusion of hydrogen in zircaloy?
Authors: Sauer G. 
Published: March 2014

Abstract
The diffusion of hydrogen in zircaloy under the influence of mechanical stresses is investigated. The governing equations are derived from the chemical potential of hydrogen including the contribution due to hydrostatic stresses. The obtained differential equation is converted to a system of algebraic equations by applying the finite element method and the weighted residual procedure. The equations are used to study the hydrogen diffusion in a fuel rod cladding tube with an axial crack and in a strip plate. It is demonstrated that the hydrogen tends to flow towards the areas of positive hydrostatic stress gradients where it precipitates in hydrides when the solubility limit is exceeded. The precipitation is itself a mechanism enhancing the transport to these areas by weakening the effect of the diffusion driven by concentration differences. The presented method can readily be applied to the diffusion of other species in metals.
Virulence genes and antimicrobial susceptibility of Escherichia coli taken from women with vaginitis in Talca, Chile
Authors: Padilla Carlos , Padilla Andrés , Lobos Olga 
Published: March 2014

Introduction: Vaginitis is one of the most common reasons women visit a gynecologist. Escherichia coli has been isolated from women with vaginitis, but its role as a vaginal infection aetiological agent is controversial. This study aimed to detect virulence genes and determine the antimicrobial susceptibility of E. coli strains isolated from monomicrobial and polymicrobial cultures collected from women with vaginitis. Methodology: The presence of the following virulence genes: papC, hly, iucC, afa, fimH, neuC, sfa/foc, cnf1, usp, and ibeA in two E. coli groups was determined by PCR. The antibacterial susceptibility of strains was tested. Results: A higher percentage (93.3%) of isolated strains from monomicrobial cultures with virulence genes in relation to polymicrobial cultures (56.7%) was found. The most frequent virulence genes in both groups were hly (p = 0.0357), fimH (p = 0.000), and cfn1 (p = 0.000). In addition, E. coli isolated from monomicrobial cultures showed 5 genetic combinations compared to the 10 observed in the polymicrobial cultures. An increased number of strains were sensitive to cefotaxime, moxifloxacin, and ciprofloxacin. A high resistance to trimethoprim-sulfamethoxazole was observed. Conclusions: Most of the E. coli strains isolated from monomicrobial cultures and some from polymicrobial cultures showed virulence genes. A better understanding of the virulence and antibacterial susceptibility of E. coli strains isolated from patients with vaginitis can contribute to improved diagnosis and treatment of this disease.
Kritická místa v matematice u českých žáků na základě výsledků šetření TIMSS 2007
Authors: Rendl M. , Vondrová N. 
Published: March 2014

Cílem empirické studie je popsat kritická místa matematiky základní školy, jak je lze vysledovat z výsledků našich žáků 8. ročníků v TIMSS 2007, a identifikovat pravděpodobné příčiny jejich obtížnosti. V první části je stručně uveden kontext výzkumu – mezinárodní srovnávací výzkumy v matematice a možnosti sekundární analýzy jejich dat. Ve druhé části podrobně popisujeme metodologii výzkumu. Analyzovali jsme data z tzv. almanachů TIMSS (výsledky našich žáků na úrovni konkrétních úloh a odpovědi učitelských dotazníků). K interpretaci možných příčin jsme používali také kurikulární dokumenty a analýzu zřejmě nejpoužívanější řady učebnic matematiky pro základní školy. Stanovili jsme kritérium, podle něhož je možné rozhodnout, zda je výkon našich žáků u dané úlohy pod jejich standardem, přičemž jsme vycházeli z porovnání jejich průměrné úspěšnosti s průměrnou úspěšností mezinárodního souboru. Tak byly identifikovány tzv. slabé a velmi slabé úlohy. Ty byly rozděleny do tří oblastí, které tedy můžeme považovat za místa, která jsou v matematice pro české žáky kritická: Algebra (s podoblastmi Funkce, Substituce, Rovnice a nerovnice, Výrazy), Posloupnosti, Obrazce a tělesa. U každé z těchto oblastí jsou prezentovány slabé a velmi slabé úlohy spolu s nástinem povahy obtíží, které při jejich řešení čeští žáci zřejmě měli, a jejich možných příčin. Ukazuje se, že je nutné získat ještě hlubší vhled do problematiky pomocí klinických rozhovorů přímo se žáky. To bude předmětem dalších článků.
Détours dans Téléroman de Larry Tremblay
Authors: Guay Hervé 
Published: March 2014

Cet article montre que Téléroman de Larry Tremblay emprunte la forme dramatique du « jeu de rêves » théorisée par Jean-Pierre Sarrazac pour brosser à la fois une satire des aficionados de fictions télévisuelles et de danse contemporaine. Sa pièce dépeint des danseurs amateurs en train de répéter une chorégraphie expérimentale, tandis qu’ils se passionnent pour le populaire feuilleton télévisé Piscine municipale. Plutôt que de privilégier la parodie, l’auteur use des détours que sont les fantasmes, l’enfance et les rêves, afin de faire retour sur la culture médiatique dans laquelle baignent ses personnages, culture qui ne manque pas d’influencer leurs comportements. Non seulement il critique les modèles stéréotypés proposés par les séries télévisées, mais il s’en prend à leur caractère prévisible et à leur culte d’un monde axé sur les apparences. L’univers de la danse contemporaine et ses faux génies ne sont pas épargnés non plus dans ce qui se révèle une critique double : des spectacles contemporains comme des comportements irrationnels des téléspectateurs.
Portrait de l’auteur en vedette de la télévision dans L’imposture d’Evelyne de la Chenelière 1
Authors: Jacques Hélène 
Published: March 2014

Evelyne de la Chenelière oppose dans L’imposture deux figures d’auteurs. Léo, invité dans une émission culturelle, est télégénique, jeune, sympathique, drôle. À l’inverse, Ève, mère de Léo, romancière consacrée, maîtrise peu ses émotions, manque d’humour et de tact. Afin d’éviter le battage médiatique entourant une nouvelle publication, elle orchestre une supercherie littéraire et demande à Léo d’assumer la responsabilité de son roman. Cette pièce souligne et critique l’importance grandissante de la personne de l’auteur dans les médias, où le sujet biographique remplace la discussion sur le livre. Le texte est analysé à partir du concept de la paratopie de Dominique Maingueneau, qui correspond à la situation d’entre-deux dans laquelle se situe l’artiste, à la fois hors de la société et à l’intérieur d’elle, marginal par son occupation « parasitaire » et fonctionnant selon une logique d’opposition à l’ensemble qui l’exclut. Si l’emploi de ce concept a ses limites dans le contexte québécois, il permet néanmoins d’éclairer ce texte mettant en scène une figure d’auteur et interrogeant les contradictions du geste créateur.
Le développement de la littérature pour la jeunesse et l’affirmation de la culture moderne de la fiction au Québec
Authors: Fournier Michel 
Published: March 2014

Cet article cherche à mettre en lumière la fonction de la littérature pour la jeunesse dans le processus d’affirmation de la culture moderne de la fiction qui s’effectue dans les années 1930 au Québec. Il montre plus particulièrement comment la littérature pour la jeunesse constitue, en complétant la formation du lecteur et en définissant les frontières de la fiction, une des médiations qui permettent le passage d’une défense « classique » du roman (qui le soumet à une finalité didactique ou morale) à l’affirmation d’un horizon plus moderne, au sein duquel l’expérience fictionnelle accède à une certaine forme d’autonomie.
Phonographie, cinéma et musique rock. Autour d’un impensé théorique chez Walter Benjamin
Authors: Sirois-Trahan Jean-Pierre 
Published: March 2014

Cet article a pour objectif de mieux comprendre, dans une perspective critique, la pensée de Walter Benjamin sur l’enregistrement en comparant ces deux dispositifs de reproduction technique que sont la phonographie et le cinéma, et notamment en questionnant ce développement ultérieur de la phonographie qu’a permis la musique rock. Ces dernières années, plusieurs musicologues et théoriciens de la musique populaire ont fait appel au cinéma en tant que dispositif pour décrire celui de la musique rock. L’auteur de cet article propose d’approfondir l’analyse de ces différentes analogies avec le cinéma afin de mieux comprendre ce qui relève de la captation, de la reproduction, de la duplication de masse et du montage/mixage. On aura l’occasion de revisiter les écrits de Walter Benjamin, notamment en scrutant ce qu’il dit sur la phonographie à son époque, dispositif qu’il rapproche du cinéma par la reproductibilité technique. Or, pour Benjamin, le cinéma va plus loin grâce à la réalisation, qui permet de mettre au jour « l’inconscient visuel ». Le rock, que le philosophe ne pouvait pas prévoir, ne donne-t-il pas justement accès à l’inconscient auditif ?
Exterior design of main houses with regard to building layout in rural house compounds in special preservation areas for historic landscape
Authors: Yamamoto Naohiko , Hirao Kazuhiro , Yoshida Tetsuya , Murosaki Chie 
Published: July 2024

AbstractAsuka village in Nara Prefecture has been designated as one of the “Special Conservation Areas for Historic Landscape” since the 1960s and is known for its richness in historic remains from the Asuka period. This paper aimed to clarify the exterior design composition of rural main houses in six village sections in Asuka village. Based on the data collected in these village sections, an item/category data are compiled. Using this IC data, by performing “multiple correspondence analysis” followed by cluster analysis, samples are classified into 15 clusters. The obtained clusters are further grouped into Townhouse type, Intermediate type between townhouses and farmhouses, Farmhouse type, Conventional construction type, Modern type, Yamato‐mune (thatched roof) type, Single‐storied traditional type, and Single‐storied type. Given that our previous research paper revealed the variation and development process of house compounds, the analysis next explores the relationship between the building layouts in house compounds and the exterior designs of main houses. Finally, the paper tries to find out the characteristics of the dominant typologies of exterior design of main houses in each village section.