13,748 research outputs found

    Economia colaborativa

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    A importância de se proceder à análise dos principais desafios jurídicos que a economia colaborativa coloca – pelas implicações que as mudanças de paradigma dos modelos de negócios e dos sujeitos envolvidos suscitam − é indiscutível, correspondendo à necessidade de se fomentar a segurança jurídica destas práticas, potenciadoras de crescimento económico e bem-estar social. O Centro de Investigação em Justiça e Governação (JusGov) constituiu uma equipa multidisciplinar que, além de juristas, integra investigadores de outras áreas, como a economia e a gestão, dos vários grupos do JusGov – embora com especial participação dos investigadores que integram o grupo E-TEC (Estado, Empresa e Tecnologia) – e de outras prestigiadas instituições nacionais e internacionais, para desenvolver um projeto neste domínio, com o objetivo de identificar os problemas jurídicos que a economia colaborativa suscita e avaliar se já existem soluções para aqueles, refletindo igualmente sobre a conveniência de serem introduzidas alterações ou se será mesmo necessário criar nova regulamentação. O resultado desta investigação é apresentado nesta obra, com o que se pretende fomentar a continuação do debate sobre este tema.Esta obra é financiada por fundos nacionais através da FCT — Fundação para a Ciência e a Tecnologia, I.P., no âmbito do Financiamento UID/05749/202

    Feeding Diversity of Finfish in Different Wild Habitat

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    Sonmiani Bay has unique faunal diversity and distribution especially finfish as mangroves provides an imperative ecosystem which offer the shelter and protection to the associated organisms and care of their juveniles in bay limits. This study aimed to evaluate the diversity pattern according to physical and physiological responses and feeding habits (carnivorous and herbivorous) of finfish species in accordance with current habitat conditions in the Sonmiani Bay. A total of 4499, individuals of comprising 155 finfish species that represent 50 families were captured by these four (beach seines, purse seines, gill nets, and cast nets) nets during a twelve-month survey in a year. The distribution pattern of finfishes captured classified into four groups (tidal visitors, permanent residents, partial residents, and seasonal visitors) according to their patterns of distribution. Understanding of the true feeding behavior of organisms needs a more reliable and functional approach. The feeding ecology is not only functional for food and feeding behavior of fish as usually described by various tools and techniques of analytical research to take up more reliable details to explain the feeding biology in fish but also the indicator of habitat quality and status

    Baroque Ethos in Borges: Resistance and Creation

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    Los ensayos de Jorge Luis Borges sobre Walt Whitman («El otro Whitman», «Nota sobre Walt Whitman») y sobre Gustave Flaubert («Flaubert y su destino ejemplar») se insertan en la corriente barroca como estética latinoamericana vía dos procesos que demuestran su ethos: la resistencia y la creación. Borges halla su reflejo en las figuras de Whitman y Flaubert para un devenir-otro anamórfico

    Brown and Red Marine Macroalgae as Novel Bioresources of Promising Medicinal Properties

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    Bioactive compounds from marine macroalgae are gaining immense attention for their application as natural ingredients in various nutraceuticals and food supplements. The present study evaluated the medicinal properties of the organic extracts of four each of brown and red marine macroalgal species, using various in vitro assays. Organic extracts of brown algae of Fucophycidan subclass, such as Sargassum plagiophyllum, Turbinaria decurrens, and red alga Hydropuntia edulis, displayed potential inhibitory properties against antioxidants (IC50 0.2–0.8 mg/mL) and carbolytic enzymes (IC50 0.2–0.9 mg/mL) compared to those exhibited by other studied algae. Noticeably, organic extracts of red alga H. edulis and brown alga T. decurrens could effectively attenuate pro-inflammatory 5-lipoxygenase (IC50 0.4–0.6 mg/mL), thereby demonstrating their potential application to dissuade inflammatory pathogenesis. This study demonstrated the predominantly available brown and red macroalgae as potential marine bioresources to develop functional food candidates

    Freelance subtitlers in a subtitle production network in the OTT industry in Thailand: a longitudinal study

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    The present study sets out to investigate a subtitle production network in the over-the-top (OTT) industry in Thailand through the perspective of freelance subtitlers. A qualitative longitudinal research design was adopted to gain insights into (1) the way the work practices of freelance subtitlers are influenced by both human and non-human actors in the network, (2) the evolution of the network, and (3) how the freelance subtitlers’ perception of quality is influenced by changes occurring in the network. Eleven subtitlers were interviewed every six months over a period of two years, contributing to over 60 hours of interview data. The data analysis was informed by selected concepts from Actor-Network Theory (ANT) (Law 1992, 2009; Latour 1996, 2005; Mol 2010), and complemented by the three-dimensional quality model proposed by Abdallah (2016, 2017). Reflexive thematic analysis (Braun and Clarke 2019a, 2020b) was used to generate themes and sub-themes which address the research questions and tell compelling stories about the actor-network. It was found that from July 2017 to September 2019, the subtitle production network, which was sustained by complex interrelationships between actors, underwent a number of changes. The changes affected the work practices of freelance subtitlers in a more negative than positive way, demonstrating their precarious position in an industry that has widely adopted the vendor model (Moorkens 2017). Moreover, as perceived by the research participants, under increasingly undesirable working conditions, it became more challenging to maintain a quality process and to produce quality subtitles. Finally, translation technology and tools, including machine translation, were found to be key non-human actors that catalyse the changes in the network under study

    Discurso y representación semántica del héroe y el tirano en Verdadera relación de la conquista del Perú (1534) de Francisco de Xerez, Conquista y población del Pirú (c.1552-1558) de Bartolomé de Segovia y La relación de Pedro Hernández Paniagua (1547)

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    Aborda el asunto del heroísmo y la tiranía en tres textos correspondientes al periodo convulso de la conquista del Perú (siglo XVI). En cuatro capítulos se ha abordado los siguientes ítems: a) el marco teórico concerniente al heroísmo, la tiranía, así como el estado de la cuestión de las crónicas de conquista; b) el análisis de la representación de lo tiránico y lo heroico en las relaciones soldadescas y, especialmente, en la Verdadera relación de la conquista del Peŕ (1534) de Francisco de Xerez ; c) el análisis de la representación de la tiranía del soldado conquistador en los textos de la corriente criticista, con especial énfasis, en la relación Conquista y población del Piŕ, fundación de algunos pueblos (c. 1552-1558) de Bartolomé de Segovia; y d) el estudio de la representación del héroe pacificador y el insurgente encomendero en las relaciones y crónicas de las guerras civiles, atendiendo preferencialmente la Relación de Pedro Hernández Paniagua (1547). El análisis de los textos se desarrolló desde una perspectiva amplia; principalmente, se recurrió a la semiótica estructural y al estudio ideológico y constructivo de los discursos de los personajes. En líneas generales, se demostró que la en las relaciones citadas de Francisco de Xerez y Pedro Hernández el rol del héroe y el tirano cambia según los intereses, formación y función social de los autores, en tanto que en la relación mencionada de Bartolomé de Segovia se cancela la figura heroica del soldado conquistador, y se da paso a su representación como tirano solamente. Asimismo, se demostró que el lenguaje y la configuración de los personajes han sido elaborados según su nivel de proximidad al poder hegemónico, o si corresponden a discursos de hetero o autorrepresentación. Por otro lado, se demuestra que las acciones y palabras de los personaje representados en los informes de conquista han tenido un tratamiento que los adecúa a los propósitos del relato y al de los autores, ya sean estos soldados, funcionarios de la Corona o religiosos

    Hunting Wildlife in the Tropics and Subtropics

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    The hunting of wild animals for their meat has been a crucial activity in the evolution of humans. It continues to be an essential source of food and a generator of income for millions of Indigenous and rural communities worldwide. Conservationists rightly fear that excessive hunting of many animal species will cause their demise, as has already happened throughout the Anthropocene. Many species of large mammals and birds have been decimated or annihilated due to overhunting by humans. If such pressures continue, many other species will meet the same fate. Equally, if the use of wildlife resources is to continue by those who depend on it, sustainable practices must be implemented. These communities need to remain or become custodians of the wildlife resources within their lands, for their own well-being as well as for biodiversity in general. This title is also available via Open Access on Cambridge Core
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