Annual traffic noise levels estimation based on temporal stratification

© 2017. This version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/This paper proposes a temporal sampling strategy that increases the accuracy of long-term noise level estimation and allows to establish the estimation error according to the number of sampled days. Days of the week are stratified into working days and weekend days. This research shows how to use measurements of Leq on working days to estimate the corresponding values for weekend days. This is possible because working days have higher noise levels and less variability than weekend days. The improvement in accuracy allows for a reduction in the number of required sampled days compared to taking samples randomly, which would help to reduce the uncertainty in environmental noise assessment. As a reference, to obtain a 90% confidence interval of ±1 dB for Lday, the proposed sampling strategy reduces the required measurement days by more than 38%. For LDEN, the reduction is close to 18% of the total number of days. The proposed strategy could be adapted to different environments by simply changing a few parameters.Peer ReviewedPostprint (author's final draft

Temporal and spatial stratification for the estimation of nocturnal long-term noise levels

Noise pollution in cities is mainly caused by the vehicular traffic but, depending on the place under assessment, it could be affected by the land use. For noise assessment and strategic noise mapping, the night period equivalent level (), which evaluates sleep disturbance, is one of the requirements of the European Directive 2002/49/EC to be presented for the equivalent time of one year. This research aims to find the influence of the land use in the weekdays stratification to improve the accuracy of the long-term noise level estimation for the night period. It is found that depending on the land use of the place under assessment, the weekdays temporal and spatial stratification could be affected by leisure activities. From a statistical analysis based on a clustering procedure of samples in 19 points, it is observed that both, temporal and spatial stratification depend on the intensity of the surrounding leisure activity, and not on traffic. Following these stratification criteria, a sampling method is presented that reduces by 47% the number of days needed to estimate the annual levels with respect to random samplingPostprint (author's final draft

The Use of Digital Technologies to Develop Girls' Creativity: Paths and Practices in Greece, Lithuania, Portugal, and Slovenia

The presence (or lack thereof) of women in STEM and ICT has become a key issue for the industry and for policy makers, as complex and nuanced questions of gender are brought to the centerstage of public discussion. As part of this effort, this research aims to shine a light on the factors that keep girls and young women from pursuing careers in the field of ICT and provide tools and orientations to tackle these issues. A two-fold analysis was conducted, with interviews with experts in the sector, in the format of four round-table discussions, and an analysis of 30 case studies of projects/initiatives across four countries: Lithuania, Greece, Slovenia and Portugal. The collected insights point to the persistence of gendered stereotypes, as well as prevailing misconceptions on the nature of ICT work. Furthermore, it points to the importance of teachers and educators, as well as the visibility of female role models in the industry. The investment in concrete and creative pursuits in ICT also appears as a defining factor to spark the interest of girls in the field.info:eu-repo/semantics/publishedVersio

Oral health goes to school

Abstract in proceedings of the Fourth International Congress of CiiEM: Health, Well-Being and Ageing in the 21st Century, held at Egas Moniz’ University Campus in Monte de Caparica, Almada, from 3–5 June 2019.This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.info:eu-repo/semantics/publishedVersio

A produção de texto na Era Enem: subjetividade e autoria no contexto político-pedagógico brasileiro contemporâneo

RESUMO Este trabalho traz resultados obtidos em pesquisa em nível de mestrado a respeito do lugar da subjetividade e da autoria na produção de textos no contexto da prova de redação do Enem, debatendo, concomitantemente, as perspectivas institucionais a respeito da linguagem e da produção de textos na contemporaneidade. Para tal, a pesquisa conta com uma análise documental da Base Nacional Comum Curricular (doravante BNCC), especificamente no que diz respeito à visão institucional sobre a linguagem no Ensino Médio e suas perspectivas curriculares para com essa esfera. Em diálogo com essa análise, o trabalho também conta com um estudo acerca da subjetividade e autoria em redações que obtiveram nota 1000 no Exame Nacional do Ensino Médio (Enem), a fim de se averiguar que autores são, de fato, vistos como modelos para o Enem, que é uma realidade do Ensino Médio brasileiro, e se esse panorama é passível de problematização. Ainda, o trabalho traz a proposta de colocar as proposições da BNCC em diálogo com os resultados obtidos do estudo das redações nota 1000, com vistas a discutir de que formas a prática textual tem se dado na contemporaneidade. Dessa forma, o trabalho guia-se pelos estudos em políticas linguísticas (RIBEIRO DA SILVA, 2013; AFONSO, 1998), que muito contribuem para a análise da BNCC; e pelas perspectivas de autoria de Bakhtin (1992 [2011]), Barthes (1984) e Foucault (1969), e de identidade, de Hall (1998), para a análise das redações nota 1000. Além disso, o trabalho é constantemente atravessado por vozes de demais autores que se engajam nas discussões em Linguística Aplicada (STREET, 1984; KLEIMAN, 2007; ROJO, 2009; VIDON, 2016; MENDES, 2013; et ali). Este estudo tem metodologia qualitativa, de base indiciária (GINZBURG, 1986), em que os resultados são observados em plano dialógico como componentes que instiguem constantemente novas problematizações. PALAVRAS-CHAVE: Enem. BNCC. Produção de Textos. Subjetividade. Autoria

Effect of intake level during milk-feeding period and protein content in the post-weaning diet on performance and body composition in growing lambs

9 pages, 7 tables.The effect of intake level during the milk-feeding period and dietary protein content during the post-weaning period on performance, weight of components of the digestive tract and carcass and non-carcass chemical composition was investigated in 28 Churra lambs. A 2 X 2 factorial design was used with two intake levels during the milk-feeding period (L-milk: 0.9 and H-milk: 1.5 MJ gross energy per kg M-0.75 daily) and two concentrate supplements (L-protein: barley grain and H-protein: barley grain plus 200 g/kg fish meal) during the post-weaning period. After selecting an initial slaughter group of four 2-day-old lambs, 12 lambs were assigned randomly to each of two intake levels during a 4-week milk-feeding period and given food individually. Four lambs from each intake level were slaughtered at weaning (30 days old) and the remaining 16 were weaned between 30 and 49 days old (weaning period). Eight lambs from each nutritional regimen during the milk-feeding period were further divided into two equal groups and given food individually ad libitum with hay and the post-weaning concentrate, according to the experimental design until the final slaughter weight (20 kg) (post-weaning period). L-milk lambs showed a capacity to grow as well as the H-milk during the weaning and post-weaning period and there were no differences (P > 0.05) in dry-matter intake and food conversion ratio among treatments. Before weaning, the weight of the reticulo-rumen was not affected by the intake level during the milk-feeding period. The most affected component of the gastrointestinal tract tons the small intestine as proportion of the digestive tract which was lower in L-milk lambs (P < 0.05). At 20 kg live weight, the relative size of the reticulo-rumen was greater (P < 0.01) and the abomasum (P < 0.05) and large intestine (P < 0.01) were smaller in lambs which were given the H-protein concentrate after weaning. The organic matter apparent digestibility (OMD, P < 0.05) and crude protein apparent digestibility (CPD, P < 0.05) of the post-weaning diets was greater in L-milk lambs and the H-protein post-weaning diet was associated with a greater dry-matter apparent digestibility, OMD and CPD when lambs were close to final slaughter weight. At 20 kg live weight, the proportion of protein in the carcass of L-milk lambs was greater (P < 0.05) than in H-milk lambs. The greater growth of the reticulo-rumen of the L-milk lambs might have increased solid food intake after the milk-feeding period, led to greater CPD of post-weaning diets and had consequences in terms of carcass composition.This research was funded by the Commission of Science and Technology (Spain) (Project GAN90-0906).Peer reviewe

Splitting of the middle layer of LPW SAFNWC/MSG satellite product in order to improve the monitoring of pre-convective environments

International audienceSeven of the infrared channels from the Spinning Enhanced Visible and Infrared Imagery (SEVIRI) instrument, on board the Meteosat Second Generation (MSG), are used to retrieve Layer Precipitable Water (LPW) and Stability Analysis Imagery (SAI) in the SAFNWC framework. Both products are retrieved using a statistical retrieval based on neural networks; they are routinely generated every fifteen minutes at a satellite horizontal resolution of 3 km in NADIR only in cloud-free areas. Many factors are involved in the development of severe weather and these parameters are only some of the indicators. However, due to the high resolution of these products, the use of them in conjunction with satellite and radar images can help to identify mesoscale features related to convection. The MSG moisture and parcel instability time trend fields are especially useful during the period previous to convection. Once the outbreak of convection occurs, the products calculated in the clear air pixels surrounding the convective system can give us hints to anticipate its evolution. SAFNWC LPW and SAI were analyzed for a severe weather event during August 2004. A thunderstorm over Teruel (Spain) produced intense precipitation and hail; a tornado developed while this thunderstorm was moving towards SE. The pre-convective parcel potential buoyancy and moisture SAFNWC products changed in a way that was consistent with the observed intense convective activity. In previous studies, the atmospheric moisture in medium levels, which has been proven to be relevant in some cases, was represented by only one level parameter (ML: middle layer LPW). However, it was observed that this layer is too thick to do an adequate analysis of moisture available for convection. Hence, an improvement on the LPW algorithm has been carried out by splitting the middle layer into two new sub-layers (approximately separated at 700 hPa) and training two new neural networks. The impact of monitoring moisture in the new sub-layers separately in this severe weather event has been tested, and the improvements achieved have been evaluated