Search results for "DUP"
showing 10 items of 499 documents
Glyphosate-based herbicide use affects individual microbial taxa in strawberry endosphere but not the microbial community composition
2023
AbstractAimsIn a field study, the effects of treatments of glyphosate-based herbicides (GBHs) in soil, alone and in combination with phosphate fertilizer, were examined on the performance and endophytic microbiota of garden strawberry.Methods and resultsThe root and leaf endophytic microbiota of garden strawberries grown in GBH-treated and untreated soil, with and without phosphate fertilizer, were analyzed. Next, bioinformatics analysis on the type of 5-enolpyruvylshikimate-3-phosphate synthase enzyme was conducted to assess the potential sensitivity of strawberry-associated bacteria and fungi to glyphosate, and to compare the results with field observations. GBH treatments altered the abu…
Nouveaux modèles géométriques pour la CAO et la synthèse d'images
2017
La géométrie du 21ème siècle est indissociable de l'ordinateur. La performance des logiciels de géométrie qu'ils soient gratuits ou sous licence d'exploitation s'accroit de jour en jour. La plupart repose sur la représentation de courbes à l'aide de points de contrôle communément appelés courbes Bézier ou courbes splines. L'ouvrage traite de ses courbes représentées par des points massiques c'est à dire des points pondérés ou des vecteurs. Plongées dans un espace non euclidien dit espace de Minkovski- Lorentz, elles servent à la représentation de surfaces canal, enveloppes de sphères orientées. En particulier, les coniques planes représentées par des points massiques de contrôle, placées da…
Transcriptional Rewiring, Adaptation, and the Role of Gene Duplication in the Metabolism of Ethanol of Saccharomyces cerevisiae
2020
Ethanol is the main by-product of yeast sugar fermentation that affects microbial growth parameters, being considered a dual molecule, a nutrient and a stressor. Previous works demonstrated that the budding yeast arose after an ancient hybridization process resulted in a tier of duplicated genes within its genome, many of them with implications in this ethanol “produce-accumulate-consume” strategy. The evolutionary link between ethanol production, consumption, and tolerance versus ploidy and stability of the hybrids is an ongoing debatable issue. The implication of ancestral duplicates in this metabolic rewiring, and how these duplicates differ transcriptionally, remains unsolved. Here, we …
Effects of exposure to a glyphosate-based herbicide on haematological parameters, plasma biochemical indices and the microstructure of selected organ…
2022
Contamination of water environments with herbicides is a common problem nowadays. The aim of the current study was to evaluate the effects of Roundup on common carp ( Cyprinus carpio) after 1, 3 and 10 days of exposure. The used concentrations corresponded to 1 and 5 mg/l of the active ingredient (glyphosate potassium salt). The haematological analysis performed showed a decrease of the RBC count, as well as an increase of the other erythrocyte indices (Hb, MCV, MCH, MCHC). Most of these changes were dependent on the concentration and time. An increase of the WBC count and the percentage of immature neutrophils occurred, thus indicating the presence of inflammation. In the studied blood bio…
Tratamiento quirúrgico de la enfermedad por reflujo gastroesofágico. Valoración de resultados y estado actual de las indicaciones
2015
1. PLANTEAMIENTO DEL PROBLEMA La Enfermedad por Reflujo Gastro-Esofágico (ERGE) constituye una entidad de elevada prevalencia en la población general (7’7 %). Su tratamiento desde que Nissen realizara en 1956 la primera funduplicatura, ha sufrido muchos vaivenes, debido a la aparición de fármacos antisecretores cada vez de mayor potencia, a los efectos inherentes de la cirugía (disfagia, atrapamiento aereo, imposibilidad de eructar / vomitar), y a la aparición de la funduplicatura laparoscópica (Dallemagne 1992) que supuso un cambio explosivo a favor del tratamiento quirúrgico. No obstante, a partir de 2005, tras una década de funduplicatura laparoscópica, y tras millares de enfermos interv…
In vitro evolution of an atrazine-degrading population under cyanuric acid selection pressure: Evidence for the selective loss of a 47kb region on th…
2011
International audience; The adaptation of microorganisms to pesticide biodegradation relies on the recruitment of catabolic genes by horizontal gene transfer and homologous recombination mediated by insertion sequences (IS). This environment-friendly function is maintained in the degrading population but it has a cost which could diminish its fitness. The loss of genes in the course of evolution being a major mechanism of ecological specialization, we mimicked evolution in vitro by sub-culturing the atrazine-degrading Pseudomonas sp. ADP in a liquid medium containing cyanuric acid as the sole source of nitrogen. After 120 generations, a new population evolved, which replaced the original on…
From Dupin cyclides to scaled cyclides
2003
Dupin cyclides are algebraic surfaces introduced for the first time in 1822 by the French mathematician Pierre-Charles Dupin. They have a low algebraic degree and have been proposed as a solution to a variety of geometric modeling problems. The circular curvature line’s property facilitates the construction of the cyclide (or the portion of a cyclide) that blends two circular quadric primitives. In this context of blending, the only drawback of cyclides is that they are not suitable for the blending of elliptic quadric primitives. This problem requires the use of non circular curvature blending surfaces. In this paper, we present another formulation of cyclides: Scaled cyclides. A scaled cy…
Mutation Analysis of LMX1B Gene in Nail-Patella Syndrome Patients
1998
SummaryNail-patella syndrome (NPS), a pleiotropic disorder exhibiting autosomal dominant inheritance, has been studied for >100 years. Recent evidence shows that NPS is the result of mutations in the LIM-homeodomain gene LMX1B. To determine whether specific LMX1B mutations are associated with different aspects of the NPS phenotype, we screened a cohort of 41 NPS families for LMX1B mutations. A total of 25 mutations were identified in 37 families. The nature of the mutations supports the hypothesis that NPS is the result of haploinsufficiency for LMX1B. There was no evidence of correlation between aspects of the NPS phenotype and specific mutations.
Ernesto Basile e lo studio della figura umana nel disegno "dal vero" e "al vero".
2012
Questo nuovo corpus di opere supporta l'ipotesi che, al contrario, l'attenzione data al disegno dal vero, non soltanto quello architettonico o floreale, sia stata una costante nell'opera basiliana, e che il ritratto e, soprattutto, più in generale, il disegno di figura, ne siano una parte strutturale. E questa attenzione non si limita al piano ideologico, come si potrebbe dedurre dall'accalorato intervento del 1879 sulla rivista «Pensiero ed Arte», con il quale il giovane architetto rivolgeva pubblicamente le proprie richieste al senatore palermitano Perez, l'allora Ministro della Pubblica Istruzione, in merito all'auspicata realizzazione di una Scuola di Belle Arti a Palermo, affermando: «…
Prologos ry palkitsi kolme ansiokasta maisterintutkielmaa
2022
Prologos ry palkitsi ansiokkaita viestinnän ja vuorovaikutuksen alan graduja Vuorovaikutuksen teemapäivän yhteydessä 8.10.2021.