31 research outputs found
Le Centre de Ressources en Langues : de l’outil satellite au dispositif intégré
Le Centre de Ressources en Langues (CRL) de l’Université Lille 3 compte de nombreuses ressources multimédias dont l’utilisation n’a pas atteint tout son potentiel car il n’est pas encore complètement intégré dans les pratiques d’enseignement. Or les outils valent pour ce qu’on en fait et non pour ce qu’ils sont. Il convient alors de réfléchir aux conditions d’intégration du CRL qui est un outil optionnel encore en marge des pratiques pédagogiques et de la reconnaissance institutionnelle. Est-ce un outil complémentaire d’usage libre, un satellite auquel les étudiants font appel quand ils le veulent ? Au contraire souhaite-t-on en faire un dispositif intégré qui ferait partie intégrante du parcours d’apprentissage des étudiants ? Ceci implique un changement dans la fonction même d’enseignant : un travail par équipe pluridisciplinaire, un investissement personnel considérable pas toujours reconnu au niveau de l’institution. On passe d’une logique d’enseignement à une logique d’apprentissage et le parcours d’utilisation optimale impliquera un aller-retour constant entre le cours en présentiel et le travail en autonomie au CRL. Nous réfléchirons alors aux variables à prendre en compte pour que cette intégration soit de l’intérêt de tous : enseignants, étudiants et institution.The Language Resource Center (CRL) of Lille 3 University is rich in multimedia resources, but its use has not been completely integrated into teaching habits. Yet what matters is how the tools are used and not what they are. Therefore it is necessary to consider the conditions required for the integration of the CRL which is still considered as an optional tool, not belonging to common pedagogical practice and without any institutionnal recognition. Is it meant to be one more tool, a kind of satellite that students may use as they wish or, on the contrary, should it become a full dispositive integrated in the students’ course? It implies a change in the role of the teacher him/herself who will have to work in a pluridisciplinary team, who will need to invest a lot of time in the process, with no certainty of recognition from the institution. We pass on from a teaching process to a learning process, at its best when it combines both presential work in the traditional classroom and autonomous work at the CRL. We will then consider the variables to be taken into account in order to lead to this integration, so that there are advantages for everyone: the teacher, the student and the institution
To what extent can a sediment yield model be trusted? A case study from the passaúna catchment, brazil
Soil degradation and reservoir siltation are two of the major actual environmental, scientific, and engineering challenges. With the actual trend of world population increase, further pressure is expected on both water and soil systems around the world. Soil degradation and reservoir siltation are, however, strongly interlinked with the erosion processes that take place in the hydrological catchments, as both are consequences of these processes. Due to the spatial scale and duration of erosion events, the installation and operation of monitoring systems are rather cost- and time-consuming. Modeling is a feasible alternative for assessing the soil loss adequately. In this study, the possibility of adopting reservoir sediment stock as a validation measure for a monthly time-step sediment input model was investigated. For the assessment of sediment stock in the reservoir, the commercial free-fall penetrometer GraviProbe (GP) was used, while the calculation of sediment yield was calculated by combining a revised universal soil loss equation (RUSLE)-based model with a sediment delivery ratio model based on the connectivity approach. For the RUSLE factors, a combination of remote sensing, literature review, and conventional sampling was used. For calculation of the C Factor, satellite imagery from the Sentinel-2 platform was used. The C Factor was derived from an empirical approach by combining the normalized difference vegetation index (NDVI), the degree of soil sealing, and land-use/land-cover data. The key research objective of this study was to examine to what extent a reservoir can be used to validate a long-term erosion model, and to find out the limiting factors in this regard. Another focus was to assess the potential improvements in erosion modeling from the use of Sentinel-2 data. The use of such data showed good potential to improve the overall spatial and temporal performance of the model and also dictated further opportunities for using such types of model as reliable decision support systems for sustainable catchment management and reservoir protection measures
Avaliação pré e pós-natal da prole de ratos expostos ao óleo essencial de Origanum vulgare durante acasalamento, gestação e lactação
Despite the increasing use of oregano (Origanum vulgare L.) essential oil for therapeutic purposes, pre- and postnatal development of animals offspring exposed to this oil has not yet been evaluated. In line with previous concerns of genotoxicity, in this study adult rats were exposed to different doses of oregano essential oil (3, 9 and 27% vol/vol) during pre-mating, mating, gestation and lactation. Prenatal screening included fetal development and uterine inspection, where the reproductive rate of females such as breeding, pregnancy, delivery, viability and post-implantation loss rate were measured. Postnatal evaluation of rat offspring included motor development, neuroendocrine and behavioral assessment. Body weight of rat dams and signs of dystocia were evaluated daily. Development of physic characteristics and reflex tests of puppies were also assessed. Additionally, these rats, when adults, were submitted to sexual and open field behavioral tests. The main differences among the groups were observed in the indices of mating, pregnancy and post-implantation loss (P<0.01). Results demonstrated that the treatment of parental generation with oregano essential oil has the potential to affect the developing fetuses at the highest dose used, but without causing maternal toxicity and changes in general behavior and development of the progeny.Apesar do aumento do uso do óleo essencial de orégano (Origanum vulgare L.) para fins terapêuticos, o desenvolvimento pré e pós-natal da progênie de animais expostos a este óleo ainda não foi avaliado. Partindo das suspeitas prévias de genotoxicidade desse óleo, neste estudo, ratos Wistar adultos foram expostos a diferentes doses do óleo essencial de orégano (3, 9 e 27% vol/vol) durante o acasalamento, a gestação e a lactação. Para a avaliação pré-natal, o desenvolvimento gestacional foi observado e os úteros inspecionados, assim como os índices reprodutivos das fêmeas, como a taxa de acasalamento, de gestação, parto e perdas pós-implantação. Na avaliação pós-natal, observou-se o desenvolvimento motor, neuroendócrino e comportamental da prole. Observou-se, diariamente, o peso das ratas e sinais de distocia. Após o parto, as características de desenvolvimento e testes de reflexos dos filhotes foram avaliadas, enquanto que, na puberdade, foram realizadas análises histopatológicas e dosagem hormonal. Adicionalmente, na idade adulta, esses ratos foram submetidos ao teste de comportamento em campo aberto e ao comportamento sexual. As principais diferenças entre os grupos foram nos índices de acasalamento, de gestação e de perdas pós-implantação (P<0,01). Os resultados demonstram que o tratamento da geração parental com óleo essencial de orégano tem potencial para afetar os índices reprodutivos das ratas e o desenvolvimento dos fetos na maior dose utilizada, mas sem causar toxicidade materna e alterações no desenvolvimento geral e comportamental da sua progênie
Impacto do apoio matricial e institucional nos processos de trabalho de equipes de saúde: revisão integrativa
Objetivo: analisar estudos sobre Apoio Matricial e Institucional (AM e AI), buscando conhecer potencialidades e entraves nos processos de trabalho de equipes de saúde. Fontes dos dados: realizada pesquisa bibliográfica de artigos escritos entre 2005 e 2016, as palavras-chaves “matrix support” OR “institutional support”, sendo encontrados 188 artigos. Após leitura dos títulos e resumos, restaram 36 artigos, lidos integralmente e selecionando-se 15 para a amostra. Síntese dos dados: os entraves referem-se à fragmentação do cuidado refletida na ausência da integralidade da atenção aos usuários, dificuldades em entender o papel do apoiador e sobrecarga de trabalho e baixa qualificação da equipe como fatores que desmotivam os profissionais para o desenvolvimento do AM. As potencialidades referem-se ao estímulo para a Educação Permanente em Saúde e os apoios como espaços de reflexão sobre práticas. Conclusão: os apoios passam a ser entendidos como ferramentas eficazes pelas equipes de saúde e pelos gestores
CRESCIMENTO INICIAL DE AROEIRA DO SERTÃO (Myracrodruon urundeuva Allemão) EM DIFERENTES SUBSTRATOS
RESUMOEste trabalho buscou avaliar o crescimento de Myracrodruon urundeuvaAllemão produzida em substratos preparados com lodo de esgoto, composto orgânico e esterco bovino. O trabalho foi conduzido em casa de vegetação por 120 dias no Viveiro do Centro de Referência em Conservação da Natureza e Recuperação de Áreas Degradadas – CRAD, Brasília-DF. Foram testados quatro tipos de adubos: (1) Osmocote®; (2) esterco bovino; (3) composto orgânico; e (4) lodo de esgoto seco. Cada adubo foi submetido a três composições diferentes: (1) 25%, (2) 50% e (3) 75%, com exceção da testemunha e do Osmocote®, totalizando 11 tratamentos com 10 repetições cada. As variáveis analisadas foram: Diâmetro do Coleto (DC), Altura da Muda (H), Número de Folhas (NF), Matéria Fresca de Parte Aérea (MFPA), Matéria Seca de Parte Aérea (MSPA), Matéria Fresca de Raiz (MFR), Matéria Seca de Raiz (MSR) e Índice de Qualidade de Dickson (IQD). As médias foram comparadas pelo teste de Tukey a 5% de probabilidade. Os resultados indicaram interação significativa entre os tratamentos. As maiores médias foram obtidas nos tratamentos com esterco bovino, seguidas do tratamento com composto. As plantas produzidas apenas com Osmocote® e com lodo de esgoto morreram. O resultado apontou a importância de incorporar matéria orgânica ao substrato para produção de mudas de M. urundeuva e o composto orgânico na proporção de 25% equivale ao esterco bovino na proporção de 25, 50 e 75%
Reflexes and microbiological interrelationships in pork processing and base / Reflexos e inter-relações microbiológicas no processamento e base de carne suína
Brazilian pork production is expanding, due to the evolution of product characteristics, the international inclusion of technological systems and operating procedures. The objective of the work is to evaluate the microbiological quality at different stages of the slaughter of pigs in a slaughterhouse in the Northwest Region of Rio Grande do Sul, to ensure compliance with the sanitary requirements of the importing markets. The research was carried out in a pig slaughterhouse located in the northwest region of the State of Rio Grande do Sul, from October 2017 to January 2018, whose daily slaughter is greater than 2,000 animals. Through the results presented, it can be seen that the bleeding stage and before scalding, form the sampling points with the highest incidence of total coliforms. The points with the lowest results identified were the points of the shower passing into a clean area with 0% in all samples followed by the final shower with 33.33% in the average of the three days sampled. The contamination index found during the pig slaughter meets the microbiological limits in force. A high proportion of microorganisms occurred in bleeding in relation to groups of microorganisms, being aerobic mesophiles, E. coli, total coliforms and thermotolerants.
Pre- and postnatal evaluation of offspring rats exposed to Origanum vulgare essential oil during mating, gestation and lactation
ABSTRACT: Despite the increasing use of oregano ( Origanum vulgare L.) essential oil for therapeutic purposes, pre- and postnatal development of animals offspring exposed to this oil has not yet been evaluated. In line with previous concerns of genotoxicity, in this study adult rats were exposed to different doses of oregano essential oil (3, 9 and 27% vol/vol) during pre-mating, mating, gestation and lactation. Prenatal screening included fetal development and uterine inspection, where the reproductive rate of females such as breeding, pregnancy, delivery, viability and post-implantation loss rate were measured. Postnatal evaluation of rat offspring included motor development, neuroendocrine and behavioral assessment. Body weight of rat dams and signs of dystocia were evaluated daily. Development of physic characteristics and reflex tests of puppies were also assessed. Additionally, these rats, when adults, were submitted to sexual and open field behavioral tests. The main differences among the groups were observed in the indices of mating, pregnancy and post-implantation loss (P<0.01). Results demonstrated that the treatment of parental generation with oregano essential oil has the potential to affect the developing fetuses at the highest dose used, but without causing maternal toxicity and changes in general behavior and development of the progeny.</jats:p
Análise da produção científica brasileira sobre a Modelagem da Informação da Construção
A difusão acadêmica da Modelagem da Informação da Construção (BIM) no Brasil configurou-se em um relevante vetor de crescimento na última década. Entretanto, embora seu acervo indique robustez, constata-se o escasso monitoramento da produção científica nacional. Devido à falta de apropriação de indicadores de desenvolvimento e aos entraves na identificação de lacunas de conhecimento dos estudos já realizados, observa-se ausência de diretrizes que condicionem novas investigações. Nesse âmbito, o presente trabalho tem como objetivo analisar a produção científica brasileira sobre BIM no país. Trata-se de uma pesquisa exploratória de caráter bibliográfico que apresenta o levantamento da produção científica brasileira em um intervalo temporal definido entre 2000 e 2015. Por meio do uso de indicadores bibliométricos e cientométricos, as contribuições geradas destacam (i) a evolução temporal da produção bibliográfica e de formação de recursos humanos; (ii) os níveis de produção bibliográfica por pesquisador e produção de formação de pesquisadores por região e instituição; (iii) as palavras-chave mais utilizadas; e (iv) os métodos científicos empregados em dissertações e teses. Analisa-se, dessa forma, o perfil evolutivo da produção científica no Brasil
