Search results for "CATA"
showing 10 items of 13753 documents
Statistical Approximation of Fourier Transform-IR Spectroscopy Data for Zinc White Pigment from Twentieth-Century Russian Paintings
2017
We present a statistical model for approximation of experimental Fourier transform-IR spectroscopy (FTIR) data for paint samples from paintings of different ages. The model utilizes random variations in some parameters (initial ageing rate, degree of change in ageing rate and time at which the change occurs). We determine the parameters characterizing variation in the paint composition and the storage conditions for the paintings. The numerical calculation is qualitatively consistent with the experimental data. In the proposed model, changes in the initial composition of the paint and the storage conditions make about the same contribution to the experimentally observed scatter in the data …
Limnological aspects of sicilian reservoirs: A comparative, ecosystemic approach
1999
This paper is a report on the state-of-the-art of reservoir limnology in Sicily, the largest island of the Mediterranean Sea. The territory is characterised by a semi-arid climate with a dry and a wet semester occurring in the year. Evaporative losses are strong during the summer and, on an annual basis, they often exceed precipitation. Thus, reservoirs constitute an important water resource for the island to supply drinking water and to provide for agricultural needs in the periods of drought. However, despite their importance, they receive poor attention from the scientific and political communities and in the absence of any environmental policy or suitable territorial planning, their wat…
Àmbits de Psicopedagogia. Revista catalana de psicopedagogia i educació. Associació catalana de professionals dels EAP (ACPEAP)
2008
Développement et caractérisation d’électrodes pour l’électrolyse alcaline de l’eau
2020
Splitting water into hydrogen and oxygen by electrolysis using electricity from intermittent ocean current, wind, or solar energies is one of the easiest and cleanest routes for high-purity hydrogen production and an effective way to store the excess electrical power without leaving any carbon footprints. The key dilemma for efficient large-scale production of hydrogen by splitting of water via the hydrogen and oxygen evolution reactions is the high overpotential required, especially for the oxygen evolution reaction. Hence, engineering highly active and stable earth-abundant oxygen evolution electrocatalysts with three-dimensional hierarchical porous architecture via facile, effective and …
Territorial Intelligence Communicational and Community System (TICCS)
2009
Information and Communication Sciences and Territorial Intelligence concept maintain multiple relations today. The method of territorial observation Catalyse, carried by the European Network of Territorial Intelligence, proposes a modelling under the shape of what Jean-Jacques Girardot calls a territorial intelligence community system (TICS, Girardot 2008). It is by the organization of the structuralization of the information, and by the conception of the process of communication that this kind of system takes life, and it is these aspects which we détail here to illustrate that both notions bring mutually. Experiments of research-action led in France, in Spain and in Europe feed these refl…
Back Cover: Water Structure Recovery in Chaotropic Anion Recognition: High-Affinity Binding of Dodecaborate Clusters to γ-Cyclodextrin (Angew. Chem. …
2015
Desymmetrization of Prochiral Cyclobutanones via Nitrogen Insertion: A Concise Route to Chiral γ‐Lactams
2021
Abstract Asymmetric access to γ‐lactams is achieved via a cyclobutanone ring expansion using widely available (1S,2R)‐1‐amino‐2‐indanol for chiral induction. Mechanistic analysis of the key N,O‐ketal rearrangement reveals a Curtin–Hammett scenario, which enables a downstream stereoinduction (up to 88:12 dr) and is corroborated by spectroscopic, crystallographic, and computational studies. In combination with an easy deprotection protocol, this operationally simple sequence allows the synthesis of a range of optically pure γ‐lactams, including those bearing all‐carbon quaternary stereocenters. In addition, the formal synthesis of drug molecules baclofen, brivaracetam, and pregabalin further …
Autobiographical texts written by learners of Catalan as an Additional Language: From formative needs to reflection in the teaching of narrative genr…
2022
In this article we analyse autobiographical narrative texts written by university students studying Catalan as an Additional Language at a CEFR (2020) B1 level. The goal is to analyse the formative needs related to the writing of this genre in order to foster metadiscursive reflection in the classroom that will allow students to improve their written output. To this end, we analyzed a corpus of 39 autobiographies at both the macrotextual level (i.e., rhetorical moves) and the microtextual level (i.e., deictic elements which channel the narrative’s organization). Our results show that the problems that these texts present for students are related to awareness of the elements that define the …
Luis Arciniega García & Amadeo Serra Desfilis, «Imágenes y espacios en conflicto: las Germanías de Valencia y otras revueltas en la Europa del Re…
2022
Book review: Luis Arciniega García & Amadeo Serra Desfilis, Imágenes y espacios en conflicto: las Germanías de Valencia y otras revueltas en la Europa del Renacimiento, València, Tirant lo Blanch, 2021, 453 p., ISBN: 978-84-18802-50-8.
Caterina Martínez Martínez, «Origen i evolució dels connectors de contrast en català», Alacant / Barcelona, Institut Interuniversitari de Filologia V…
2021
Ressenya sobre el llibre de Caterina Martínez Martínez, Origen i evolució dels connectors de contrast en català, Alacant / Barcelona, Institut Interuniversitari de Filologia Valenciana / Publicacions de l’Abadia de Montserrat, «Biblioteca Sanchis Guarner», 2021, 247 p., isbn: 978-84-9191-152-4.