2 resultados para Multivariate Calibration. Levofloxacin. Drugs and fluorescence

em Instituto Politécnico de Bragança


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Herbal therapy is characterized by the use of aromatic and medicinal plants (AMP) in different pharmaceutical forms for therapeutic purposes. The present study aims to characterize the use of AMP, drugs and herbal products in Bragança city. For this, a cross-sectional study was conducted through application of a questionnaire to 404 subjects of both gender and aged between 18 and 89 years. AMP were therapeutically used by 53.7% mainly due “to be natural” (43.9%) while 33.8% use drugs and/ or herbal products mainly “because it is good for health” (53.5%). The AMP most used were Cidreira (n=149) and Camomila (n=117) and concerning drugs and/ or herbal products Valdispert® (n=48) and Daflon® 500 (n=41) were the most reported. Overall, the reported uses of AMP, drugs and herbal products were correct, according to the reported in literature. The use of AMP is motivated by self-knowledge (55.4%) while drugs and/ or herbal products are used mostly by medical prescription (44.1%). AMP were obtained by own cultivation (44.1%) and drug and/ or herbal products in pharmacies (89.0%). Of all users, about 90% not combined these products with conventional drugs and it was identified just one potential occurrence of drug interactions related with the use of Hipericão. The occurrence of adverse effects was noted after the use of AMP Sene (11.8%), Hipericão (9.1%) and Ginkgo Biloba (8.3%). The use of these products is a common practice among the residents of Bragança city, which use a wide diversity of AMP and plant-based products.

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The general purpose of this work is to describe and analyse the financing phenomenon of crowdfunding and to investigate the relations among crowdfunders, project creators and crowdfunding websites. More specifically, it also intends to describe the profile differences between major crowdfunding platforms, such as Kickstarter and Indiegogo. The findings are supported by literature, gathered from different scientific research papers. In the empirical part, data about Kickstarter and Indiegogo was collected from their websites and also complemented with further data from other statistical websites. For finding out specific information, such as satisfaction of entrepreneurs from both platforms, a satisfaction survey was applied among 200 entrepreneurs from different countries. To identify the profile of users of the Kickstarter and of the Indiegogo platforms, a multivariate analysis was performed, using a Hierarchical Clusters Analysis for each platform under study. Descriptive analysis was used for exploring information about popularity of platforms, average cost and the most popular area of projects, profile of users and future opportunities of platforms. To assess differences between groups, association between variables, and answering to the research hypothesis, an inferential analysis it was applied. The results showed that the Kickstarter and Indiegogo are one of the most popular crowdfunding platforms. Both of them have thousands of users and they are generally satisfied. Each of them uses individual approach for crowdfunders. Despite this, they both could benefit from further improving their services. Furthermore, according the results it was possible to observe that there is a direct and positive relationship between the money needed for the projects and the money collected from the investors for the projects, per platform.