Manual de extração de DNA.

bitstream/item/63491/1/Oriental-Doc89.pd

Comparação de ferramentas de tópicos em textos sob o paradigma de aprendizado estatístico não supervisionado.

Neste trabalho pretende-se estudar e explorar ferramentas de aprendizado de tópicos hierárquicos, através de coleções textuais e teoria estatísticaCIIC 2014. Nº 14602

Gaseous Hydrocarbon Separations Using Functionalized Ionic Liquids

International audienceThe functionalization of the side chains on the cation or the anion of an ionic liquid is a common approach to tailor its properties for different processes including the separation of gases. In this paper, we present the current state of the art concerning the usage of ionic liquids for hydrocarbon separations. We also show how the functionalization of ionic liquids or the appropriate anion/cation combinations can contribute to the increase of the performance of the ionic liquids for the separation of gaseous hydrocarbons – either by improving the capacity of the ionic liquid to absorb a given gas or by increasing the selectivity towards a particular hydrocarbon. Original results concerning the usage of olefin-complexing metal salts of lithium (I), nickel (II) and copper (II) dissolved in ionic liquids for selectively absorbing light olefins are presented. It is observed that the absorption capacity of an imidazolium-based ionic liquid is doubled by the addition of a copper (II) salt. This result is compared with the effect of the functionalization of the ionic liquid and the advantages and difficulties of the two approaches are analyzed.La fonctionnalisation des chaînes latérales sur le cation ou l’anion d’un liquide ionique est une approche commune pour adapter ses propriétés pour les différents processus, y compris la séparation de gaz. Dans cet article, nous présentons l’état actuel des recherches concernant l’utilisation de liquides ioniques pour les séparations d’hydrocarbures gazeux. Nous montrons comment la fonctionnalisation de liquides ioniques ou des combinaisons d’anions/cations appropriées peuvent contribuer à l’augmentation de leur performance pour la séparation des hydrocarbures gazeux – soit par l’amélioration de la capacité du liquide ionique pour absorber un gaz donné ou en augmentant la sélectivité pour un hydrocarbure particulier. Des résultats originaux concernant l’utilisation de sels métalliques de lithium (I), le nickel (II) et le cuivre (II) dissous dans des liquides ioniques pour absorber sélectivement des oléfines légères sont présentés. On constate que la capacité d’absorption d’un liquide ionique à base d’imidazolium est doublée par addition d’un sel de cuivre (II). Ce résultat est comparé avec l’effet de la fonctionnalisation du liquide ionique. Les avantages et les difficultés de ces deux approches sont analysés

Empowering pharmacists working in primary care through a cardiovascular disease clinical management course: Impact on practice

Introduction: Cardiovascular disease (CVD) is currently the leading cause of mortality and morbidity worldwide. A competent healthcare workforce working in primary care delivering disease management services efficiently is the cornerstone of well performing health systems, impacting patient outcomes positively. The aim of this study was to evaluate the effectiveness of a training course to support pharmacists working in General Practitioner (GP) practices; and to evaluate its impact on practice. Methods: A before and after evaluation model was employed to assess the effectiveness of training resorting to a survey exploring self-confidence and knowledge on clinical management of three CVD topics: Atrial Fibrillation (AF), Hypertension and hyperlipidaemia. Before and after training data (immediate and retained after 6 months) were analysed at the Primary Care Network (PCN) and GP Practice level of the pharmacists who took part in the training sessions. Data were analysed in IBM SPSS v.29 resorting to paired samples t -test and Cohen's d for estimation of the effect size. Independent samples t -tests were performed for a sample group of PCNs and GP practices with and without training (comparator group). Results: An improvement with large effect size was observed in pharmacists' self-confidence and knowledge related to the hypertension topic, suggesting potential practical benefit. For the topics of AF and hyperlipidaemia, pharmacists' confidence also increased with a large effect size, but for knowledge, the effect size of the increase was medium or small. Data suggests that pharmacists' practice has improved in both groups after 6 months, which suggests that it was not a sole result of the training. Conclusions: This study provide evidence that the course improved pharmacists' knowledge and self-confidence, likely to contribute to performance in their clinical practice. Patients' clinical benefit is expected from pharmacists' improved capacity to effectively engage in medicines optimisation