Search results for "Figura"
showing 10 items of 867 documents
Interrogating witnesses for geometric constraint solving
2012
International audience; Classically, geometric constraint solvers use graph-based methods to decompose systems of geometric constraints. These methods have intrinsic limitations, which the witness method overcomes; a witness is a solution of a variant of the system. This paper details the computation of a basis of the vector space of free infinitesimal motions of a typical witness, and explains how to use this basis to interrogate the witness for dependence detection. The paper shows that the witness method detects all kinds of dependences: structural dependences already detectable by graph-based methods, but also non-structural dependences, due to known or unknown geometric theorems, which…
Lasiolactols A and B Produced by the Grapevine Fungal Pathogen Lasiodiplodia mediterranea
2016
A strain of Lasiodiplodia mediterranea, a fungus associated with grapevine decline in Sicily, produced several metabolites in liquid medium. Two new dimeric c-lactols, lasiolactols A and B (1 and 2), were characterized as (2S*,3S*,4R*,5R*,20S*,30S*,40R*,50R*)-and (2R*,3S*,4R*,5R*,20R*,30S*,40R*,50R*)-(5-(4-hydroxymethyl-3,5-dimethyl-tetrahydrofuran- 2-yloxy)-2,4-dimethyl-tetrahydro-furan-3-yl]-methanols by IR, 1D-and 2D-NMR, and HR-ESI-MS. Other four metabolites were identified as botryosphaeriodiplodin, (5R)-5-hydroxylasiodiplodin, (-)-(1R, 2R)-jasmonic acid, and (-)-(3S, 4R, 5R)-4-hydroxymethyl-3,5-dimethyldihydro-2-furanone (3 - 6, resp.). The absolute configuration (R) at hydroxylated s…
An Ex Vivo Study of Root Canal System Configuration and Morphology of 115 Maxillary First Premolars
2019
Abstract Introduction The aim of this study was to investigate the root canal system morphology of maxillary first premolars by means of micro–computed tomographic imaging in a Swiss-German population. Methods The root canal configuration (RCC) of 115 maxillary first premolars (Mx1Ps) were investigated by means of micro–computed tomographic imaging and 3-dimensional imaging. The RCC and the physiological foramina results are described by a 4-digit system code. Results Twelve different RCCs were observed in 30 single-rooted Mx1Ps; 2-2-2/2 (30.0%), 1-2-2/2 (13.3%), 1-2-1/2 (10%), and 2-2-1/2 (10.0%) were the most frequent ones. Seven different RCCs were observed in 2-rooted Mx1Ps (n = 81) in …
Changes in the international wine market competitiveness
2017
This study offers a contribution to understanding the complexity of the international wine trade analysing the specialisation patterns of 14 among the most important wine world actors in the period 2007â2016, in order to verify if the patterns of comparative advantages for the trade of this countries have experienced significant changes. Using the Lafay index, as a comparative advantage measure, our results reveal deep changes in the global wine market exchange. Our result constitutes a base element for the future development of the competitive scenario and provides some both theoretical and practical implications. In the baseline projection, the maintenance of the competitive position is…
Towards identifying drug side effects from social media using active learning and crowd sourcing.
2019
Motivation Social media is a largely untapped source of information on side effects of drugs. Twitter in particular is widely used to report on everyday events and personal ailments. However, labeling this noisy data is a difficult problem because labeled training data is sparse and automatic labeling is error-prone. Crowd sourcing can help in such a scenario to obtain more reliable labels, but is expensive in comparison because workers have to be paid. To remedy this, semi-supervised active learning may reduce the number of labeled data needed and focus the manual labeling process on important information. Results We extracted data from Twitter using the public API. We subsequently use Ama…
Attention-based Model for Evaluating the Complexity of Sentences in English Language
2020
The automation of text complexity evaluation (ATCE) is an emerging problem which has been tackled by means of different methodologies. We present an effective deep learning- based solution which leverages both Recurrent Neural and the Attention mechanism. The developed system is capable of classifying sentences written in the English language by analysing their syntactical and lexical complexity. An accurate test phase has been carried out, and the system has been compared with a baseline tool based on the Support Vector Machine. This paper represents an extension of a previous deep learning model, which allows showing the suitability of Neural Networks to evaluate sentence complexity in tw…
The language game of lost meaning: Using literal meaning as a metalinguistic resource
2019
AbstractBy literal meaning (LM) we usually refer to a theoretical notion which is at the center of a big debate involving philosophers and linguists with various orientations. At the same time, LM is rooted in a linguistic intuition of the speaker, which we could formulate as follows: words taken in isolation have a meaning. Adopting this general take on LM, we are using a notion of LM that seems incompatible with any research program of a contextualist type; I will show, instead, that in a radically contextualist (and Wittgensteinian) perspective, this notion of LM can have legitimate circulation in particular types of language games. I will propose a recovery of the notion of LM saving th…
Being a good neighbour: developing intercultural understanding through critical dialogue between an Australian and Finnish cross-case study
2020
Language educators in Australia and Finland are expected to foster intercultural understanding within foreign language education. This paper presents findings from a qualitative case study focusing on theoretical and practical intercultural understanding in secondary school language education. The data for this study includes lesson observations as well as student and teachers interviews collected in two secondary schools in Australia and Finland. The findings demonstrate the complex resources teachers and students draw on to develop and share intercultural understanding. The discussion addresses the value of different perspectives and the need for a new metaphor to conceptualise intercultu…
Figurative language and multicultural education: metaphors of language acquisition and retention
2015
Linguistics has long recognised that figurative language in the form of metaphorical expressions structures and communicates attitudes towards the ideas and concepts being expressed and that multilingual students also employ linguistic figures frequently in their writing. In this study, multilingual students use figurative language to both critique and describe experiences related to language acquisition and retention. Faced with the task of using three or more languages, the L3 English language students studied often turn to metaphor to describe the relationships between their languages and the different contexts in which they use the linguistic resources available to them. The following a…
Four Potential Meanings of Double Negation
2016
The figurative use of double negations (not uninteresting, not unhappy) has been described by linguists and rhetoricians with regards to the rhetorical figure litotes. Both mitigation and strengthening have been proposed as aims of litotes (Horn, 1989; Krifka, 2007; van der Wouden, 1996). An analysis of the construction nicht un-adjective (not un-adj.) on the basis of German corpora leads to a coherent system of pragmatic functions for this sort of double negations. The construction can function as denial, potential presumption denial, mitigation or understatement. Nevertheless, litotes exemplifies the “indeterminate nature of figurative meaning” as suggested by Colston/Gibbs (2012: 259) in…