1,049 research outputs found

    LES MARQUAGES CORPORELS CHEZ LES COMMUNAUTÉS NÉOLITHIQUES ET ÉNÉOLITHIQUES CARPATO DANUBIENNES (II)

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    In the second part of this work, the author continues the discussion about anthropomorphic statuettes and vases, this time of the Aeneolithic, the Carpatho-Balkan and Danubian area, which emphasizes body (bodily) marks such as tattoos, piercings, scarifications, etc.). Are highlighted the analogies with similar practices of other aeneolithic (chalcolithic), historical, traditional or of the present "primitive world" communities. Comparative analysis of this type of behaviour, of the perenniality body marks practices, of the symbolism and ornamentation semantics, allows the author to better "localize" the Aeneolithic (Chalcolithic) and Neolithic person, in the micro and macrosocial groups, with a multiplicity of identities (gender, age, status and role, ethnicity, religion etc., in protohistorical complex societies

    THE EFFECT OF OREGAMI AETHEROOLEUM AND EXTRACTS OF BEE PRODUCTS ON THE YOLK QUALITY OF TABLE EGGS

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    The aim of the experiment was to analyze the effect of certain feed additives on the egg yolk quality characteristics of laying hens hybrid Hy-Line Brown under controlled conditions. Laying hens (n=40) were randomly divided into four groups with the same number of hens per group (n=10). In the first group there were hens fed with complete feed mixtures without any additives. The second group was fed with complete compound feed enriched with Oregami aetherooleum. In third group there was propolis extract added and  in the fourth group there was a supplement of pollen extract. All groups of hens were fed ad libitum. The average value of the yolk weight was found significantly (P<0.05) higher in the fourth group than in the second one, the yolk index value was significantly higher in the third group compared to the second one. There was significantly (P<0.05) higher average value of the yolk colour in the second group compared with the fourth one. In all experimental groups and characteristics there was statistically significant (P<0.05) dependance on the actual part of the laying period

    Friedrich Weinwurm: Slovakia’s nearly forgotten contribution to the European architectural avant-garde

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    Work of the architect Friedrich Weinwurm represents the most consistent contribution from within Slovakia to the activities of the international architectural avant-garde. Friedrich Weinwurm fully matched the idea of a socialist-minded architect, organizer of public life and visionary of a new social order. The new way that Friedrich Weinwurm followed in his architectural work ran parallel to the paths of the leading representatives of the European left-wing avant-garde. In Slovakia, these works represented the most coherent allegiance to the program of the New Objectivity, and the vision of a Marxist-inspired architecture. As such, Friedrich Weinwurm held a key role in ensuring that inter-war Bratislava formed one of Europe’s important focal points for modern architecture

    EFFECT OF DIETARY SODIUM SELENITE AND SE-ENRICHED YEAST ON EGG-SHELL QUALITATIVE PARAMETERS OF LAYING HENS EGGS

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    The experiment was designed to investigate the effects of feed supplementation with selenite or selenized yeast on eggs quality of laying hens. Hens of laying breed Isabrown were randomly divided at the day of hatching into 4 groups (n=12) and fed ad libitum for 9 months on diets which differed only in amounts or forms of selenium supplemented. Hens were fed from 1st day by standard feed mixture. Control group get only native dose of selenium (0.1 mg/kg) naturally presented in feed mixtures. First experimental group get selenium addition 0.4 mg/kg in a form of sodium selenite, second one the same dose of 0.4 mg/kg but in organic form of Se-yeast. The diet for the fourth group was supplemented with Se-yeast at Se dose 0.9 mg/kg DM. The both doses of organic selenium had significantly (P&lt;0.05) beneficial influence on the egg weight (g±SD) (60.45±3.87a; 60.81±5.63a; 62.41±3.72b; 62.15±3.16b). Significantly lower values of egg shell weight and egg shell ratio were found out in experimental group with sodium selenite only. The significantly lower egg shell strength (N/cm2) was in the experimental groups with supplementation of Se in both forms. Average egg shell thickness (μm) were not significantly affected (P&gt;0.05) by the supplementation of Se into the feed mixture for laying hens

    O movimento paranaense de matemática moderna: o papel do NEDEM

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    Disponível em: http://www2.pucpr.br/reol/pb/index.php/dialogo?dd1=581&dd99=view&dd98=pbNo final da década de 50, o impacto produzido pelo lançamento do Sputnik preocupou não somente o governo americano, mas também educadores de várias partes do mundo envolvidos com a formação científica da população. O êxito científico e tecnológico alcançado pelos russos ampliou a preocupação de vários países com a educação matemática oferecida à população, gerando um movimento internacional de reformulação do ensino de Matemática, conhecido como Movimento da Matemática Moderna, uma tentativa que nos anos 60 e 70 procurava superar o ensino tradicional que até a década de 50 privilegiava a matemática clássica, o modelo euclidiano, a visão platônica. No Brasil, esse movimento foi liderado pelo grupo paulista – GEEM - coordenado por Oswaldo Sangiorgi, incentivando a criação de grupos de estudos em vários estados com vistas à modernização da Matemática ensinada no ensino primário e ginasial (hoje Ensino Fundamental). No Paraná, o disseminador do Movimento da Matemática Moderna foi o NEDEM – Núcleo de Estudos e Difusão do Ensino da Matemática – criado e coordenado por Osny Antonio Dacol, diretor do Colégio Estadual do Paraná. Trabalhando inicialmente com classes experimentais no maior colégio do estado, o NEDEM elaborou sua proposta de Matemática Moderna que, posteriormente, foi publicada em duas coleções de livros didáticos que passaram a ser adotadas pelas escolas paranaenses durante mais de duas décadas. Tais iniciativas marcaram significativamente o ensino de Matemática no Paraná. A repercussão do movimento teve seu auge na década de 60 e no final de 1970 e mesmo com a extinção do grupo, as sementes plantadas pelos integrantes do NEDEM deixaram marcas na história da educação matemática paranaense, especialmente pelo intenso e democrático trabalho de difusão do movimento no ensino público do Paraná

    A new method for the determination of low-level actinium-227 in geological samples

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    Author Posting. © The Author(s), 2012. This is the author's version of the work. It is posted here by permission of Springer for personal use, not for redistribution. The definitive version was published in Journal of Radioanalytical and Nuclear Chemistry 296 (2013): 279-283, doi:10.1007/s10967-012-2140-0.We developed a new method for the determination of 227Ac in geological samples. The method uses extraction chromatographic techniques and alpha-spectrometry and is applicable for a range of natural matrices. Here we report on the procedure and results of the analysis of water (fresh and seawater) and rock samples. Water samples were acidified and rock samples underwent total dissolution via acid leaching. A DGA (N,N,N’,N’-tetra-n-octyldiglycolamide) extraction chromatographic column was used for the separation of actinium. The actinium fraction was prepared for alpha spectrometric measurement via cerium fluoride micro-precipitation. Recoveries of actinium in water samples were 80±8 % (number of analyses n=14) and in rock samples 70±12 % (n=30). The minimum detectable activities (MDA) were 0.017-0.5 Bq kg-1 for both matrices. Rock sample 227Ac activities ranged from 0.17 to 8.3 Bq kg-1 and water sample activities ranged from below MDA values to 14 Bq kg-1of 227Ac. From the analysis of several standard rock and water samples with the method we found very good agreement between our results and certified values

    Building High Tatras: dilemma of form Architecture of 1960s and 1970s in the most famous Slovak mountain resort

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    The High Tatra Mountains are the most prominent alpine center of recreation and sport in Slovakia. The development of this site dates back to the end of the 19th century. From the architectural point of view, the beginning of the 20th century, the 1920s, the 1930s and the post-war period of the 1960s and the 1970s should be considered the most interesting periods. At that time, the most important architectural works were created in the High Tatras, which in different ways dealt with the fundamental question: how to build in the mountains? Through the built results achieved in the region, it is now possible to study the success of this discussion
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