Search results for "Cultures"
showing 10 items of 216 documents
Two Borderline Works: The Miniature Classical Friezes by John Henning
2020
The plaster replicas of two miniaturized reproductions of the Parthenon and Bassae friezes are preserved at the Plaster Cast Gallery of the Department Cultures and Societies of the University of Palermo. The original reproductions were made by the Scottish carver John Henning in the first decades of the 19th century. These artefacts, although they have seldom captured the attention of the archaeologists, are of particular interest and from manifold points of view.
Quality controls for cell cultures: identification of interspecies cross-contamination by PCR-RFLP analysis of the cytochrome b gene
2012
Cross-contaminations of a cell line with cells of different species represent a potential risk in laboratories handling human and animal cells. Therefore, it is necessary to control such contaminations. Tests based on mitochondrial DNA (mtDNA) are used in forensic analysis, phylogenetic studies and in food authentication. However, the use of mtDNA in quality controls of cell cultures is recent. Mitochondrial sequence differences of closely related animal species are five- to tenfold higher than those of nuclear genes. On the contrary, intraspecies variation in mitochondrial sequences is low in most animal species. Moreover, each cell contains 100–10.000 mitochondrial genomes. The amount of …
APOBEC4 Enhances the Replication of HIV-1
2016
APOBEC4 (A4) is a member of the AID/APOBEC family of cytidine deaminases. In this study we found a high mRNA expression of A4 in human testis. In contrast, there were only low levels of A4 mRNA detectable in 293T, HeLa, Jurkat or A3.01 cells. Ectopic expression of A4 in HeLa cells resulted in mostly cytoplasmic localization of the protein. To test whether A4 has antiviral activity similar to that of proteins of the APOBEC3 (A3) subfamily, A4 was co-expressed in 293T cells with wild type HIV-1 and HIV-1 luciferase reporter viruses. We found that A4 did not inhibit the replication of HIV-1 but instead enhanced the production of HIV-1 in a dose-dependent manner and seemed to act on the viral L…
Romas vēsture: 1. grāmata. Ķēniņu laikmets Romā; 21. grāmata. Hannibala iebrukums Itālijā
1940
Saturs : Tits Līvijs. — A.Biogrāfija 7 Tits Līvijs. — B. Romas vēstures pirmā grāmata 13 Romas vēstures divdesmit pirmā grāmata 94 Pielikumi: 1. Horātija Izvēlētas odas (ar biogrāfiju) 67 2. Vokābuļu frekvences saraksts 182 3. Romiešu literatūras konspekts 187
Democracia, república y federación en época isabelina. Una aproximación al proyecto federal de Roque Barcia Martí = Democracy, Republic and Federatio…
2016
Este artículo propone una aproximación al proyecto federal defendido por Roque Barcia Martí a mediados del siglo XIX, prestando especial atención a los principios teóricos y los argumentos –inspirados por una fuerte religiosidad– que sustentan su propuesta. Más allá de la estricta cuestión territorial o de las plasmaciones jurídico-políticas concretas, la federación aparece como una solución global a las tensiones de la modernidad que el Estado liberal no sabía solucionar. En este planteamiento, el campo político se configura como un espacio de humanización que reclama, como punto de partida, la necesaria reformulación política del Estado para transformar la sociedad y, potencialmente, la h…
Socially desirable responding:enhancement and denial in 20 countries
2015
This article investigated the dimensionality, measurement invariance, and cross-cultural variations of social desirability. A total of 3,471 university students from 20 countries completed an adapted version of the Marlowe–Crowne scale. A two-dimensional structure was revealed in the pooled sample, distinguishing enhancement (endorsement of positive self-description) and denial (rejection of negative self-description). The factor structure was supported in most countries; medium-sized item bias was found in two denial items. In a multilevel analysis, we found that (a) there was more cross-cultural variation in denial than enhancement; (b) females tended to score higher on enhancement where…
The Use of Mixed Populations of
2017
Saccharomyces cerevisiae is the most widespread microorganism responsible for wine alcoholic fermentation. Nevertheless, the wine industry is currently facing new challenges, some of them associate with climate change, which have a negative effect on ethanol content and wine quality. Numerous and varied strategies have been carried out to overcome these concerns. From a biotechnological point of view, the use of alternative non-Saccharomyces yeasts, yielding lower ethanol concentrations and sometimes giving rise to new and interesting aroma, is one of the trendiest approaches. However, S. cerevisiae usually outcompetes other Saccharomyces species due to its better adaptation to the fermenta…
Izdevuma "Description de l'Égypte" oriģinālgravīras
2014
Raksts par izstādē "Tutanhamona dzintars : Senā Ēģipte = The Amber of Tutankhamun : Ancient Egypt" (Rīgas birža, 2014.g. 14. novembris - 2015.g. 25. janvāris) eksponētajām senajām gravīrām no Latvijas Universitātes Bibliotēkas krājuma.