Browsing by Issue Date, starting with "2022-04-12"
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- A fase de instrução no processo penal cumpre o seu verdadeiro alcance?Publication . Pinto, Andreia Barbosa; Ferreira, Maria Elisabete da CostaCom a presente dissertação, pretendemos analisar a fase da instrução no nosso Código de Processo Penal, tendo como linha condutora as alterações introduzidas pela Lei nº 48/2007, as quais foram bastante significativas.
- Potential wound healing effect of gel based on chicha gum, chitosan, and mauritia flexuosa oilPublication . Ferreira, Maria Onaira Gonçalves; Ribeiro, Alessandra Braga; Rizzo, Marcia S.; Oliveira, Antonia Carla de Jesus; Osajima, Josy Anteveli; Estevinho, Leticia M.; Silva-Filho, Edson C.Wounds are considered a clinically critical issue, and effective treatment will decrease complications, prevent chronic wound formation, and allow rapid healing. The development of products based on naturally occurring materials is an efficient approach to wound healing. Natural polysaccharides can mimic the extracellular matrix and promote cell growth, thus making them attractive for wound healing. In this context, the aim of this work was to produce a gel based on chicha gum, chitosan, and Mauritia flexuosa oil (CGCHO) for wound treatment. TG and DTG analyzed the thermal behavior of the materials, and SEM investigated the surface roughness. The percentages of total phenolic compounds, flavonoids, and antioxidants were determined, presenting a value of 81.811 ± 7.257 µmol gallic acid/g Mauritia flexuosa oil, 57.915 ± 0.305 µmol quercetin/g Mauritia flexuosa oil, and 0.379 mg/mL, respectively. The anti-inflammatory was determined, presenting a value of 10.35 ± 1.46% chicha gum, 16.86 ± 1.00% Mauritia flexuosa oil, 10.17 ± 1.05% CGCHO, and 15.53 ± 0.65% chitosan, respectively. The materials were tested against Gram-negative (Klebsiella pneumoniae) and Gram-positive (Staphylococcus aureus) bacteria and a fungus (Candida albicans). The CGCHO formulation showed better antimicrobial activity against Gram-positive bacteria. In addition, an in vivo wound healing study was also performed. After 21 days of treatment, the epidermal re-epithelialization process was observed. CGCHO showed good thermal stability and roughness that can help in cell growth and promote the tissue healing process. In addition to the good results observed for the antimicrobial, antioxidant, anti-inflammatory activities and providing wound healing, they provided the necessary support for the healing process, thus representing a new approach to the wound healing process.
- The portuguese-speaking World between West and East : China, Lusophone countries and the geopolitics the 21st centuryPublication . Machado, Pamela; Garcia, Francisco ProençaWith the acceleration of globalisation and the waning influence of Western directives in the international system, the two first decades of the 21st century were marked by increasing multipolarity and the rise of forms of diplomacy among emerging powers. Alternative models have started to arise, culminating in more initiatives of 'South-South Cooperation' (SSC), a new development framework based on shared experiences among countries in the Global South. This changing order is an opportunity to study and reinvent the current paradigm. In this context, the Portuguese language has an interesting role in the transformation of global politics, even if it has often been overlooked.. While countries of the Portuguese-speaking Global South used to be under stronger Western influence, the rise of new powers, especially China, has created new opportunities and new alliances. This dissertation sought to map and understand Chinese presence in the Lusophone world of the Global South, using the case studies of Lusophone Africa, in the context of rising geopolitical powers. Through exploratory research and review of literature, the purpose was to answer two main questions: firstly, seeking to understand Chinese multilateralism and foreign policy towards the Portuguese-speaking world, looking at the case study of Angola; and secondly, looking at the experiences of Portuguese- speaking countries in the Global South and moving from theory into practical examples, it sought to understand democratic development and map some of the most pressing problems with the intent of finding more sustainable and democratically sound solutions
- Três clássicos: Bambi - Heidi - Abelha MaiaPublication . Fragoso, GabrielaExistem na literatura infantojuvenil de expressão alemã obras clássicas cuja autoria poucos conhecem, pois o seu carácter universal remeteu para segundo plano a origem do texto, bem como a língua que o veiculou. É o caso de Heidi (1880), da escritora suíça Johanna Spyri, A Abelha Maia (1912), do alemão Waldemar Bonsels, ou ainda Bambi (1923), do austríaco Felix Salten. O presente volume desvenda a identidade dos três textos nas suas diversas facetas e no enquadramento cultural de onde provêm.
- Analysis of alternative shelf life-extending protocols and their effect on the preservation of seafood productsPublication . Rezende, Lourenço Pinto de; Barbosa, Joana; Teixeira, PaulaSeafood is essential to a healthy and varied diet due to its highly nutritious characteristics. However, seafood products are highly perishable, which results in financial losses and quality concerns for consumers and the industry. Due to changes in consumer concerns, demand for healthy products has increased. New trends focusing on reducing synthetic preservatives require innovation and the application of additional or alternative strategies to extend the shelf life of this type of product. Currently, refrigeration and freezing storage are the most common methods for fish preservation. However, refrigeration alone cannot provide long shelf-life periods for fish, and freezing worsens sensorial characteristics and consumer interest. Therefore, the need to preserve seafood for long periods without exposing it to freezing temperatures exists. This review focuses on the application of other approaches to seafood products, such as biodegradable films and coating technology; superchilling; irradiation; high-pressure processing; hyperbaric storage; and biopreservation with lactic acid bacteria, bacteriocins, or bacteriophages. The efficiency of these techniques is discussed based on their impact on microbiological quality, sensorial degradation, and overall preservation of the product's nutritional properties. Although these techniques are already known, their use in the industrial processing of seafood is not widespread. Thus, the novelty of this review is the aggregation of recent studies on shelf life extension approaches, which provide useful information for the selection of the most appropriate technology and procedures and industrial innovation. Despite the fact that all techniques inhibit or delay bacterial proliferation and product decay, an undesirable sensory impact may occur depending on the treatment conditions. Although no technique appears to replace refrigeration, the implementation of additional treatments in the seafood processing operation could reduce the need for freezing, extending the shelf life of fresh unfrozen products.
- Branqueamento e criptomoedas : uma análise das novas entidades obrigadas do sistema preventivoPublication . Teixeira, João Pedro da Cunha; Freitas, Pedro Miguel FernandesO crime de branqueamento acompanhou o fenómeno evolutivo caracterizado pela globalização e modernização tecnológica. Surgiram novos meios de execução do crime que merecem hoje a atenção dos ordenamentos jurídicos. Um destes meios traduz-se na utilização das criptomoedas para a ocultação da origem ilícita das vantagens. A presente dissertação tem como objetivo analisar criticamente o modo pelo qual as criptomoedas foram incluídas nos atuais sistemas de prevenção de branqueamento. Para tal, será estudada a junção do branqueamento e das criptomoedas, os instrumentos legislativos que se dedicam à prevenção da utilização do sistema económico-financeiro para este crime e quais foram as suas alterações que permitiram englobar as criptomoedas.