Search results for "rase"
showing 10 items of 4343 documents
Influence of aryl hydrocarbon- (Ah) receptor and genotoxins on DNA repair gene expression and cell survival of mouse hepatoma cells
2009
The aryl hydrocarbon receptor (AhR) mediates toxicity of a variety of environmental pollutants such as polycyclic aromatic hydrocarbons (PAHs) and dioxins. However, the underlying mechanisms and genetic programmes regulated by AhR to cause adverse effects but also to counteract poisoning are still poorly understood. Here we analysed the effects of two AhR ligands, benzo[a]pyrene (B[a]P), a DNA damaging tumour initiator and promotor and 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), a pure tumour promoter, on cell survival and on nucleotide excision repair (NER) gene expression. NER deals with so called "bulky" DNA adducts including those generated by enzymatically activated B[a]P. Therefore, t…
Gaujas ielejas morfoloģija Viduslatvijas un Piejūras zemienē
2019
Bakalaura darbā veikts pētījums par Gaujas ielejas morfoloģiju lejasteces posmā. Darbā teorētiskajā daļā apzināti agrāk veikto pētījumu rezultāti par Gaujas ielejas ģeomorfoloģisko uzbūvi un veikta literatūras analīze par upju ieleju morfoloģisko uzbūvi un aluvialiem nogulumiem. Darbā rezultatā sagatavotas kartes, kuras balstītas uz Latvijas ģeotelpiskas informācijas aģentūras izveidoto LiDAR zemes virsmas modeli un autores veiktājiem kamerāliem un lauka pētījumiem. Iegūtie rezultāti apstrādāti izmantojot QGis, ArcMap, Streonet un Microsattion datorprogrammas. Pētījuma rezultāti liecina par Gaujas ielejas lejasteces sarežģīto uzbūvi un tas posmveidīgo attīstību deglaciācijas laikā. Darbs ie…
Das sprachliche Bild von Trägern ausgewählter Berufsbezeichnungen in der deutschen Phraseologie und Parömiologie
2018
The subject of the analysis of this article are the word combinations which in their composition include a component in the form o f the name of selected professions and those which occur in available German dictionaries. The aim of the article is to reconstruct the linguistic image established in them and to compare whether the analysed phraseologies and proverbs are also used in the contemporary language and whether the former linguistic image of the analysed professions has perhaps changed.
Distinctive Lexical Patterns in Russian Patient Information Leaflets: A Corpus-Driven Study
2019
This methodologically-oriented corpus-driven study focuses on distinctive patterns of language use in a specialized text type, namely Russian patient information leaflets. The study’s main goal is to identify keywords and recurrent sequences of words that account for the leaflets’ formulaicity, and - as a secondary goal - to describe their discoursal functions. The keywords were identified using three methods (G2, Hedges’ g and Neozeta) and the overlap between the three metrics was explored. The overlapping keywords were qualitatively analyzed in terms of discoursal functions. As for the distinctive multi-word patterns, we focused on recurrent n-grams with the largest coverage in the corpus…
Reescritura de las fuentes y sustituciones léxicas en el De Proprietate Animalium de Manuel Files: ¿variación estilística o cambio de nivel lingüísti…
2020
El De Proprietate Animalium de Manuel Files es un poema didáctico del s. XIV que parafrasea libremente varias fuentes literarias de contenido zoológico, entre las que destaca la Historia Animalium de Claudio Eliano. Un análisis detallado de los procedimientos de sustitución léxica realizado por el autor, apoyado en la consulta de los diccionarios bizantinos, permite reconocer su originalidad compositiva, la riqueza expresiva de su vocabulario poético, pero también la clara conciencia de la existencia de diferentes niveles de lengua y de los muy diversos registros utilizados por el autor.
Predation on Multiple Trophic Levels Shapes the Evolution of Pathogen Virulence
2009
The pathogen virulence is traditionally thought to co-evolve as a result of reciprocal selection with its host organism. In natural communities, pathogens and hosts are typically embedded within a web of interactions with other species, which could affect indirectly the pathogen virulence and host immunity through trade-offs. Here we show that selection by predation can affect both pathogen virulence and host immune defence. Exposing opportunistic bacterial pathogen Serratia marcescens to predation by protozoan Tetrahymena thermophila decreased its virulence when measured as host moth Parasemia plantaginis survival. This was probably because the bacterial anti-predatory traits were traded o…
Cours de grammaire française
2015
Une grammaire pour l'étudiant dès la première année en lettres modernes qui trouvera l'essentiel dans les fiches, et pour le candidat aux concours de recrutement de l'enseignement qui approfondiront leurs connaissances. Un ouvrage qui offre une précision des méthodes et des notions fondamentales de la grammaire, une progression du plus simple au plus complexe: des principales parties du discours, verbe, nom, adjectif, à l'exposé de leurs combinaisons dans le cadre de la phrase et du texte, une série d'applications, d'exercices et de corrigés en fin de chapitre qui illustrent les exposés. Enfin 30 fiches synthétiques qui permettent de mémoriser l'essentiel et constituent un bagage pour les r…
The Fuzzy Concept of Idiom and What It Might Mean for Bilingual Dictionaries
2019
Linguistic categories were developed as tools for describing language systems and making them easier to learn. However, like many theoretical concepts and systems, they do not fully represent the real world and, in some cases, seek to imprison linguistic units within a well-ordered system – a procrustean bed as it were. Besides, although the most general categories are universal, the lower-ranking ones are often language-specific. Idiom (or phraseologism) is a very unclear linguistic concept, subject to never-ending debate. However, a strict adherence to categorisation is observable in practical bilingual lexicography and phraseography. This may lead to unwanted compartmentalisation and a…
Characterization and transcription studies of a phytochelatin synthase gene from the solitary tunicate Ciona intestinalis exposed to cadmium.
2014
The major thiol-containing molecules involved in controlling the level of intracellular ROS in eukaryotes, acting as a nonenzymatic detoxification system, are metallothioneins (MTs), glutathione (GSH) and phytochelatins (PCs). Both MTs and GSH are well-known in the animal kingdom. PC was considered a prerogative of the plant kingdom but, in 2001, a phytochelatin synthase (PCS) gene was described in the nematode Caenorhabditis elegans; additional genes encoding this enzyme were later described in the earthworm Eisenia fetida and in the parasitic nematode Schistosoma mansoni but scanty data are available, up to now, for Deuterostomes. Here, we describe the molecular characteristics and transc…