Search results for "Component"

Sulfate transporters in the plant’s response to drought and salinity: regulation and possible functions

2014

International audience; Drought and salinity are two frequently combined abiotic stresses that affect plant growth, development, and crop productivity. Sulfate, and molecules derived from this anion such as glutathione, play important roles in the intrinsic responses of plants to such abiotic stresses. Therefore, understanding how plants facing environmental constraints re-equilibrate the flux of sulfate between and within different tissues might uncover perspectives for improving tolerance against abiotic stresses. In this review, we took advantage of genomics and post-genomics resources available in Arabidopsis thaliana and in the model legume species Medicago truncatula to highlight and …

The Largest Subunit of RNA Polymerase II as a New Marker Gene to Study Assemblages of Arbuscular Mycorrhizal Fungi in the Field

2014

Due to the potential of arbuscular mycorrhizal fungi (AMF, Glomeromycota) to improve plant growth and soil quality, the influence of agricultural practice on their diversity continues to be an important research question. Up to now studies of community diversity in AMF have exclusively been based on nuclear ribosomal gene regions, which in AMF show high intra-organism polymorphism, seriously complicating interpretation of these data. We designed specific PCR primers for 454 sequencing of a region of the largest subunit of RNA polymerase II gene, and established a new reference dataset comprising all major AMF lineages. This gene is known to be monomorphic within fungal isolates but shows an…

‘Strange old Italian dresses’: Walter Pater, Victorian fashionista?

2019

This article discusses Aesthetic dress as conceived by Walter Pater. Indeed in “Leonardo Da Vinci” (1869), the unfinished Gaston de Latour (1888-1894?), “The School of Giorgione” (1877) and “A Prince of Court Painters” (1885), Pater mentions and describes dress with special emphasis on details. Such descriptions belong to a series of writings on Aesthetic dress, admittedly a core component of British Aestheticism. Pater’s descriptions should therefore be contrasted to the 1870s portraits of Whistler, and to the 1880s-1890s writings of Whistler, Oscar Wilde and Max Beerbohm, along with the caricatures of Aesthetes by George du Maurier and Sir Leslie Ward. Pater responds by progressively deli…

Individuality in the Early Number Skill Components Underlying Basic Arithmetic Skills

2018

Individuality in the Early Number Skill Components Underlying Basic Arithmetic Skills

2018

Early number skills underlie success in basic arithmetic. However, very little is known about the skill profiles among children in preprimary education and how the potential profiles are related to arithmetic development. This longitudinal study of 440 Finnish children in preprimary education (mean age: 75 months) modeled latent performancelevel profile groups for the early number skill components that are proposed to be key predictors of arithmetic (symbolic number comparison, mapping, and verbal counting skills). Based on three assessment time points (September, January, and May), four profile groups were found: the poorest-performing (6%), low-performing (16%), nearaverage-performing (33…

Biochemical methane potential (BMP) of solid organic substrates: evaluation of anaerobic biodegradability using data from an international interlabor…

2011

Background: This paper describes results obtained for different participating research groups in an interlaboratory study related to biochemical methane potential (BMP). In this research work, all experimental conditions influencing the test such as inoculum, substrate characteristics and experimental conditions were investigated. The study was performed using four substrates: three positive control substrates (starch, cellulose and gelatine), and one raw biomass material (mung bean) at two different inoculum to substrate ratios (ISR). Results: The average methane yields for starch, cellulose, gelatine and mung bean at ISR of 2 and 1 were 350 ± 33, 350 ± 29, 380 ± 42, 370 ± 36 and 370 ± 35 …

Sindrome di Birt, Hogg, Dubè: analisi genica della componente neoplastica renale.

2011

Unveiling the Different Reactivity of Bent and Linear Three-Atom-Components Participating in [3 + 2] Cycloaddition Reactions

2021

The reactivity of a series of pairs of bent and linear three-atom-component (B-TACs and L-TACs) participating in [3 + 2] cycloaddition (32CA) reactions towards ethylene and electrophilic dicyanoethylene (DCE) have been studied within the Molecular Electron Density Theory. While the pseudodiradical structure of B-TACs changes to that of pseudoradical or carbenoid L-TACs upon dehydrogenation, zwitterionic B-TACs remain unchanged. Conceptual Density Functional Theory (CDFT) indices characterize five of the nine TACs as strong nucleophiles participating in polar reactions towards electrophilic ethylenes. The activation energies of the 32CA reactions with electrophilic DCE range from 0.5 to 22.0…

Passive sinking into the snow as possible survival strategy during the off-host stage in an insect ectoparasite

2015

Abiotic and biotic factors determine success or failure of individual organisms, populations and species. The early life stages are often the most vulnerable to heavy mortality due to environmental conditions. The deer ked (Lipoptena cervi Linnaeus, 1758) is an invasive insect ectoparasite of cervids that spends an important period of the life cycle outside host as immobile pupa. During winter, dark-coloured pupae drop off the host onto the snow, where they are exposed to environmental temperature variation and predation as long as the new snowfall provides shelter against these mortality factors. The other possible option is to passively sink into the snow, which is aided by morphology of …

Sistema de ayuda a la toma de decisiones en la valoración de perfiles, a partir del desarrollo de un nuevo modelo de datos en el "Centre Universitari…

2015

La investigación en áreas de intervención socio-sanitaria con personas con discapacidad o personas mayores en situación de dependencia es en la actualidad, un área emergente e interdisciplinar que integra conocimientos de Ciencias de la Salud, Psicología, Sociología, Economía, Derecho, Tecnología, etc. Este enfoque multidisciplinar, junto a la aparición de nuevas tecnologías, nuevos métodos y técnicas de intervención y nuevos conocimientos sobre el desarrollo humano, obliga a una permanente revisión de los procedimientos de trabajo en la búsqueda de ofrecer la mejor asistencia posible con los recursos disponibles. Cada uno de los profesionales que interviene en la atención socio-sanitaria s…