4,667 research outputs found

    Assessment of the Maltese environmental matrix to define the future monitoring strategy

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    Chapter 16As a member of the EU and of the international community, Malta has important obligations to report on the state of the environment and the effectiveness of policy measures addressing particular concerns, such as pollution (Regional Environmental Center, 2008). Failure to collect reliable and up-to-date environmental data would make Malta exposed to various environmental pressures due to poorly informed policy decisions, which could eventually also lead to economic implications (European Commission, 2014a). Under this context Malta is in the process of implementing the EU legislative framework regarding the environmental themes of air, water, radiation and soil. Prior to the implementation of the project “Development of environmental monitoring strategy and environmental monitoring baseline surveys”, air and water data from the Maltese environmental network were already available, though data coverage presented some lacunas, whereas radiation and soil network system was not in place, hence minimum baseline data was available. Therefore, the long term monitoring strategic proposal discussed in this article has been designed as a primary tool to improve the state of the environment as well as to be in compliance with the EU Directives related with nature conservation.peer-reviewe

    Distributional analyses in the picture-word interference paradigm: Exploring the semantic interference and the distractor frequency effects.

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    he present study explores the distributional features of two important effects within the picture-word interference paradigm: the semantic interference and the distractor frequency effects. These two effects display different and specific distributional profiles. Semantic interference appears greatly reduced in faster response times, while it reaches its full magnitude only in slower responses. This can be interpreted as a sign of fluctuant attentional efficiency in resolving response conflict. In contrast, the distractor frequency effect is mediated mainly by a distributional shift, with low frequency distractors uniformly shifting reaction times distribution towards a slower range of latencies. This finding fits with the idea that distractor frequency exerts its effect by modulating the point in time in which operations required to discard the distractor can start. Taken together, these results are congruent with current theoretical accounts of both the semantic interference and distractor frequency effects. Critically, distributional analyses highlight and further describe the different cognitive dynamics underlying these two effects, suggesting that this analytical tool is able to offer important insights about lexical access during speech productio

    The Manipulability Effect in Object Naming

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    Seeing objects triggers activation of motor areas. The implications of this motor activation in tasks that do not require object-use is still a matter of debate in cognitive sciences. Here we test whether motor activation percolates into the linguistic system by exploring the effect of object manipulability in a speech production task. Italian native speakers name the set of photographs provided by Gu\ue9rard, Lagac\ue8 and Brodeur (Beh Res Meth, 2015). Photographs varied on four motor dimensions concerning on how easily the represented objects can be grasped, moved, or pantomimed, and the number of actions that can be performed with them. The results show classical psycholinguistic phenomena such as the effect of age of acquisition and name agreement in naming latencies. Critically, linear mixed-effects models show an effect of three motor predictors over and above the psycholinguistic effects (replicating, in part, previous findings, Gu\ue9rard et al., 2015). Further research is needed to address how, and at which level, the manipulability effect emerges in the course of word production

    The iconicity advantage in sign production: The case of bimodal bilinguals

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    Recent evidence demonstrates that pictures corresponding to iconic signs are named faster than pictures corresponding to non-iconic signs. The present study investigates the locus of the iconicity advantage in hearing bimodal bilinguals. A naming experiment with iconic and noniconic pictures in Italian Sign Language (LIS) was conducted. Bimodal bilinguals named the pictures either using a noun construction that involved the production of the sign corresponding to the picture or using a marked demonstrative pronoun construction replacing the picture sign. In this last condition, the pictures were colored and participants were instructed to name the pronoun together with the color. The iconicity advantage was reliable in the noun utterance but not in the marked demonstrative pronoun utterance. In a third condition, the colored pictures were presented as distractor stimuli and participants required to name the color. In this last condition, distractor pictures with iconic signs elicited faster naming latencies than non-iconic signs. The results suggest that the advantage of iconic signs in production arises at the level of semantic-tophonological links. In addition, we conclude that bimodal bilinguals and native signers do not differ in terms of the activation flow within the sign production system

    Emergent realities for social wellbeing : environmental, spatial and social pathways

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    This article summarises the results of an evaluation performed to the air monitoring network of Malta in 2012 where the following elements were evaluated in comparison with national and European legal requirements: the classification of zones and agglomerations in the island, the number, type and location of fixed monitoring stations, the data reporting and the reference methods used for the analysis of parameters.peer-reviewe

    Gossip and competitive altruism support cooperation in a Public Good game

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    When there is an opportunity to gain a positive reputation, individuals are more willing to sacrifice their immediate self-interest. Partner choice creates opportunities for competitive altruism, i.e. individuals compete to be regarded as more generous and to be chosen for future partnerships. Tests of the competitive altruism hypothesis have focused so far on reputation based on direct observation, whereas the role of gossip has not been theoretically and empirically addressed. Partner choice can create an incentive to cooperate and to send truthful messages, but it can also work in the opposite direction. In order to understand the consequences of partner choice on cooperation and gossip, we designed an experimental study in which participants played a sequence of Public Goods games and gossip rounds. In our two treatments, we observed that cooperation increased when there was an opportunity to be selected, but also that cooperators sent more honest messages than defectors, and that this strategy was prevalent in the treatment in which inter-group competition was implemented. We also found evidence that participants detached themselves from the information more often when lying. Taken together, our study fills a theoretical and empirical gap by showing that partner choice increases both cooperation and honesty of gossip. This article is part of the theme issue ''The language of cooperation: reputation and honest signalling''

    Combination of Time Series of L-, C- and X-Band SAR Images for Land Cover and Crop Classification

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    The availability of new Earth observation satellites operating radar sensors at different frequencies enables the combination of multiple dimensions of the data (time, frequency, polarimetry and interferometry) in many applications. Image classification is expected to benefit from the diversity of observation. This work illustrates classification experiments carried out with series of images acquired by ALOS-2 PALSAR (L-band), Sentinel-1 (C-band) and TanDEM-X (X-band) in two application domains: land cover classification and crop-type mapping. Their usage, both separately and in combination, serves to identify the complementarity of information. In this work we propose a new colour representation of the pair-wise class separability in the case of using three frequency bands, which help identify which bands (or combinations of them) provide the best performance. Results in terms of accuracy scores (overall and class-specific) show that the use of the three frequency bands always outperforms the individual bands and their pairs. In addition, for both land classification and crop-type mapping the accuracy of using coherence time series is lower than the one obtained with the intensity time series, but there is complementarity in terms of sensitivity when both coherence and intensity time series are used together. The classes which are most benefited at each particular case of study have been identified. Finally, a partial trade-off has been found between the use of multiple frequency bands and the length of the available time series.This work was supported in part by the European Space Agency under Contract 4000133590/20/NL/AS/hh, and in part by the Spanish Ministry of Science and Innovation (State Agency of Research, AEI) and the European Funds for Regional Development under Project PID2020-117303GB-C22

    No emisión de comprobantes de pago y riesgos tributarios por comerciantes del mercado La Hermelinda

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    El trabajo de investigación tuvo como propósito determinar los riesgos tributarios por la no emisión de comprobantes de pago de los comerciantes de abarrotes del Mercado la Hermelinda de la ciudad de Trujillo; el estudio correspondía a una investigación descriptiva, de diseño no experimental, de corte transversal, la población estuvo constituida por los comerciantes de abarrotes del mercado la Hermelinda en número de 50, se tomó una muestra de 25 comerciantes. En cuanto a la técnica utilizada fue la encuesta y como instrumento el cuestionario. Con la presente investigación obtuvimos como resultados que: más del 80% los comerciantes de abarrotes del Mercado la Hermelinda son informales, es decir no emiten ningún comprobante de pago, ni están inscritos en la Superintendencia Nacional de Aduanas y Administración Tributaria. El 20% de los comerciantes de abarrotes del Mercado la Hermelinda no emiten comprobantes de pago por cada venta que realizan superior a S/. 5.00, Sus Declaraciones Juradas presentadas a la SUNAT no contienen datos verídicos siendo esta otra infracción tributaria. Los comerciantes de abarrotes del Mercado la Hermelinda se encuentran expuestos a los siguientes riesgos tributarios: multas, cierre de sus locales, decomiso de sus mercaderías y aún pasar dependiendo del quebrantamiento legal unos años en la cárcel.Tesi
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