69166 research outputs found
Sort by
Uma análise de impacto
No full textA Dieta Mediterrânica é amplamente reconhecida pelos seus benefícios na prevenção de doenças crónicas, incluindo o cancro. Estima-se que entre 30 % e 50 % dos casos possam ser evitados através de alterações nos hábitos alimentares. No contexto das síndromes de predisposição hereditária para o cancro, como nos portadores de variantes patogénicas nos genes BRCA1/2 e TP53, a alimentação assume um papel crucial. Este estudo teve como objetivo avaliar a adesão à Dieta Mediterrânica nesta população e explorar os fatores que a influenciam, nomeadamente o diagnóstico genético.
Os resultados reforçam a importância de intervenções nutricionais personalizadas e da integração da genómica nutricional nos planos terapêuticos, promovendo o padrão alimentar mediterrânico como estratégia complementar na gestão do risco oncológico.The Mediterranean Diet is widely recognized for its benefits in preventing chronic diseases, including cancer. It is estimated that between 30% and 50% of cases can be prevented through dietary changes. In the context of hereditary cancer predisposition syndromes, such as in carriers of pathogenic variants in the BRCA1/2 and TP53 genes, nutrition plays a crucial role. This study aimed to assess adherence to the Mediterranean Diet in this population and to explore the factors influencing it, particularly genetic diagnosis.
The results reinforce the importance of personalized nutritional interventions and the integration of nutritional genomics into therapeutic plans, promoting the Mediterranean dietary pattern as a complementary strategy in cancer risk management
From Anxiety to Trust: Understanding AI Chatbot adoption in Emergency Healthcare
No full textDissertation presented as the partial requirement for obtaining a Master's degree in Information Management, specialization in Business IntelligenceThe integration of artificial intelligence (AI) in healthcare is transforming emergency
department (ED) operations by streamlining service efficiency. This study investigates the key
factors influencing the adoption of AI-driven chatbots to enhance patient flow and reduce
waiting times. A survey was conducted in Portugal with 296 individuals who often turn to the
internet for health advice and have experienced emergency situations where quick and
accurate guidance is critical, and analyzed using partial least squares. Grounded in UTAUT and
frameworks of security, trust, and anxiety, the model explained 76.7% of the variance in the
actual use of health chatbots. Anxiety moderates the relationship between intention to use
and actual use and behavioral intention mediates the relationship between trust and use. By
assessing symptoms and guiding patients to less-crowded hospitals, AI chatbots demonstrate
the potential to reduce ED congestion and improve decision-making
Assessing artificial intelligence readiness in EU e-government: insights from factor and cluster analysis
No full textDissertation presented as the partial requirement for obtaining a Master's degree in Information Management, specialization in Business IntelligenceArtificial Intelligence is playing an increasingly central role in the transformation of public
governance, offering new possibilities for more adaptive, responsive, and citizen-centric
service delivery. However, the extent to which European Union member states are
institutionally and societally prepared to adopt these technologies in the public sector remains
insufficiently explored. This thesis addresses that gap by providing a comparative assessment
of Artificial Intelligence readiness across the European Union. Using secondary data from
Eurostat and the European Commission’s electronic Government Benchmark, the study
applies exploratory factor analysis to identify two core dimensions: Digital Skills and Electronic
Government Engagement, and Transparency and Electronic Government Service Availability.
These dimensions serve as inputs for hierarchical and k-means clustering, which reveal six
distinct profiles of readiness among member states. The findings uncover substantial
disparities in both infrastructural and citizen-level preparedness, reflecting broader digital
divides. Ultimately, the results highlight that successful Artificial Intelligence integration in
public governance is contingent not only on technological infrastructure but also on inclusive,
citizen-oriented strategies. This thesis contributes an empirical framework for understanding
readiness, offering practical insights for policymakers aiming to ensure that AI-driven digital
transformation advances equitably across the European public sector
Redefining oral care using Lean Business principles - development and validation
No full textThe oral care market lacks products that combine safety, efficacy, sustainability, and a premium
sensory experience. This study developed KLEAN, a clean, premium oral care brand addressing
this gap. Using the Lean Business Model Canvas framework, surveys, interviews, and
community feedback validated the demand for a fluoride-free toothpaste with nano hydroxyapatite (nHAp) for enamel protection and probiotics for gum health. A refillable pump
dispenser made from recycled materials was designed based on consumer preferences. Results
from a social media analyses and user feedback confirm interest in KLEAN’s clean formulation
and eco-friendly packaging, highlighting significant market potential in Germany’s oral care
sector
O Tempo e a Memória como Construções Políticas: O Monopólio de Seti I e da sua Narrativa sobre a História do Início da Dinastia XIX, Império Novo
No full textAnexos para consulta na Biblioteca Mário Sottomayor CardiaDe uma maneira geral, existe um consenso de que a mente humana só pode ser estudada
in loco e at hoc. Porém, nesta Tese pretendemos estudar aspectos da mentalidade da civilização
do Vale do Nilo. Para se atingir este fim, vamos recorrer a diversas fontes de Registos
Arqueológicos Egípcios, do Período Dinástico, que são meticulosamente apresentados com um
foco específico na História Egípcia de Maneton, nos Anais Reais, no Canos Real de Turim,
nas Listas Reais e nas Inscrições Monumentais de Seti I, faraó da dinastia XIX do Império
Novo. A este corpus documental vamos acrescentar a narrativa de Seti I, inscrita nas suas
grandes obras, durante o seu reinado. O grande objectivo será identificar de que maneira o
Tempo e a Memória, dois constructos mentais fundamentais para qualquer civilização, se
articulam com esta narrativa e foram, ou não, por ela modificados ou moldados. De forma a
verificar este fenómeno propomos uma análise de diversos conceitos relacionados com o
tempo, como o ‘Tempo Linear’ e o ‘Tempo Cíclico’, e com a memória, como a ‘Memória
Individual’, a ‘Memória Comunicativa’ e por fim a ‘Memória Cultural’.
A interacção destes diversos conceitos chave com a narrativa de Seti I poderá revelar
de que modo a memória e o tempo foram usados como ferramentas políticas, alterando o Tempo
Histórico e criando uma outra memória que foi absorvida por esta civilização do Nilo.
Identificando esta ‘capacidade de alterar o tempo’ e esta ‘capacidade de alterar a memória’ é
então fundamental perceber de que forma Seti I conseguiu com que os diversos níveis da
memória fossem, efectivamente, alterados. Em simultâneo, é incontornável compreender como
este rei conseguiu afectar da mesma forma o tempo que foi percepcionado pelos egípcios que
partilharam o espaço do início da dinastia XIX.In general, there is a consensus that the human mind can only be studied in loco and at
hoc. However, in this Thesis we propose to study aspects of the mentality of the Nile Valey
Civilization. In order to achieve this end, we will draw on various Egyptian sources of
Archaeological Records, from the Dynastic Period, which are meticulously presented with
specific focus on the Egyptian History of Manethon, the Royal Annals, the Royal Canon of
Turin, the Royal Lists and the Monumental Inscriptions of Seti I, pharaoh of the New Kingdom
dynasty XIX. To this documentary corpus we will add the narrative of Seti I, which was
inscribed in his great constructions, during his reign. The main objective will be to identify
how time and memory, two fundamental mental constructs for any civilization, articulate with
this narrative and were, or not, by it modified or shaped. In order to verify this phenomenon,
we propose an analysis of various time-related concepts such as 'Linear Time' and 'Cyclic
Time', and memory-related concepts, such as 'Individual Memory', 'Communicative Memory'
and finally the 'Cultural Memory'.
The interaction of these various key concepts with Seti I’s narrative can reveal how
Memory and Time were used as political tools, altering Historical Time and creating another
memory that was absorbed by the Nile Civilization. After identifying this ‘ability to alter time’
and this ‘ability to alter memory’, it is therefore essential to understand how Seti I was able to
effectively alter the various levels of memory. At the same time, it is unavoidable to understand
how this king was able to similarly affect the time as it was perceived by the Egyptians who
shared with him the space of the early dynasty XIX
The outcomes of generative AI in the future of work: The role of technostress creators
No full textDissertation presented as the partial requirement for obtaining a Master's degree in Information Management, specialization in Digital TransformationGenerative artificial intelligence (Gen-AI) is reshaping the future of work, bringing both
opportunities and challenges in an increasingly competitive global economy. Unlike traditional
AI models that primarily analyze existing data, Gen-AI leverages advanced machine learning
(ML) techniques, such as deep neural networks and transformer architectures, to model
probabilistic distributions, generate contextually relevant content, and iteratively refine
outputs based on training data and user interactions. While prior studies have explored its
applications in specific domains, research on its broader implications for the future of work
remains scarce. To address this lack, this study builds on the DeLone & McLean IS success
model and aims to explore the outcomes of Gen-AI in the future of work focusing on the role
of technostress creators—stressors induced by AI adoption—and their influence on shaping
the adoption and integration of Gen-AI in organizational contexts. This study employs the
belief-action-outcome (BAO) framework to structure the proposed conceptual model, which
examines how user beliefs—such as technostress creators and quality perceptions—influence
actions, including system use and satisfaction, ultimately shaping instrumental and humanistic
outcomes. The research draws on both theoretical insights from the existing literature and
empirical data collected through questionnaires targeting professionals who have some level
of contact with this technology, where we gathered 305 valid responses. Our results highlight
the strong impact of Gen-AI in the future of work and the role of technostress creators in user
satisfaction and workplace outcomes. Moreover, technostress creators, besides explaining
the outcomes, act as moderators in the relationship between AI usage and user satisfaction
How can journalism and its professionals adapt to young people´s demands in terms of journalistic value?
No full textThe transition from traditional to digital journalism has led to transformations in
how news organizations and individual journalists interact with audiences, with a fierce
ongoing competition between professional news sources and peripheral actors disputing
for the public´s attention.
In a complex digital setting, young people are frequently consuming information
through social media platforms, where novel individual alternative voices in the periphery
of journalism become relevant to consider. This is because their approach - in terms of
format, language and content – resonates with youth´s preferences in terms of
communication traits and thus empowers such content creators in becoming credible
information sources who are able to contextualize and simplify news.
This dissertation examines how journalism and its professionals are adapting to
young people´s needs in terms of journalistic value. Specifically, the study considers two
dimensions – production and reception – to bring awareness of how journalists in Portugal
(whose work is directly aimed at youth or whose social media use is incorporated in their
journalistic role) are adapting their communicative practices to bring news to those who
are more distant from traditional journalism. Moreover, this study analyses how
adolescents aged 13 to 18 engage with content on social media platforms where they go to
more frequently, as well as youngsters´ preferred traits when it comes to individual
information sources.
The results show that news organizations in Portugal coming from the public and
the private sector are neglecting young people in terms of the production of regulated
news content for this specific audience. There is a generalized resistance from professional journalists towards the individualization of the journalistic role. However, this is
incongruent with youth´s preferences for individual information sources who are able to
connect with those who are distant from legacy media. Adolescents seek for alternative
voices who are able to inspire them, to educate rather than merely informing.
Journalism and its professionals have the challenge of revolutionizing how they
operate in the digital sphere, as their future actions – depending also on the contribution of
certain peripheral actors who may reinvigorate the institution without losing its virtue –
will help shape how young people make informed decisions, fighting against those who
continuously weaken democracy by spreading misinformation.A transição do jornalismo tradicional para o digital levou a transformações
relativamente a como organizações jornalísticas e jornalistas individuais interagem com as
audiências, com uma competição contínua e feroz entre fontes de informação credível e
atores periféricos, que disputam pela atenção do público.
Num universo digital complexo, os jovens estão frequentemente a consumir
informação através das redes sociais, onde vozes individuais alternativas na periferia do
jornalismo se tornam importantes a considerar. Isto deve-se à abordagem – em termos de
formato, linguagem e conteúdo – que ressoa com as preferências dos jovens em termos de
características comunicacionais, e como tal empodera estes criadores de conteúdo, que se
tornam fontes de informação credíveis, capazes de contextualizar e simplificar as notícias.
Esta dissertação examina como é que o jornalismo e os seus profissionais se estão
a adaptar às necessidades dos jovens em termos de valor jornalístico. Especificamente,
este estudo considera duas dimensões – produção e receção – para consciencializar sobre
como jornalistas em Portugal (cujo trabalho seja diretamente dirigido a jovens ou cujo uso
das redes sociais esteja incorporado no seu trabalho enquanto jornalista) estão a adaptar as
suas práticas comunicativas para trazerem notícias àqueles que estão mais distantes do
jornalismo tradicional. Por outro lado, este estudo analisa como jovens adolescentes entre
os 13 e os 18 anos se envolvem com conteúdos nas plataformas digitais onde vão mais
frequentemente, assim como as características preferidas dos jovens relativamente a fontes
de informação individuais. Os resultados mostram que organizações jornalísticas em Portugal – seja do setor
público ou privado – estão a negligenciar os jovens em termos de produção de conteúdos
noticiosos regulados. Há uma resistência generalizada de jornalistas profissionais
relativamente à individualização do seu cargo. Contudo, isto é incongruente com as
preferências dos jovens por fontes individuais, capazes de conectar com aqueles que estão
mais distantes dos meios de comunicação tradicionais. Os adolescentes procuram vozes
alternativas que sejam capazes de os inspirar, de os educar em vez de apenas os informar.
O jornalismo e os seus profissionais têm o desafio de revolucionar como operam
na esfera digital, uma vez que as suas ações futuras – que dependem também da
contribuição de certos atores periféricos que podem revigorar a instituição sem que esta
perca a sua virtude – vão ajudar a definir como os jovens farão decisões informadas,
lutando contra aqueles que enfraquecem continuamente a democracia ao espalharem
desinformação
Management from the Nova School of Business and Economics
No full textThis thesis explores the role of Innovation Management Software in enhacing digital
transformation consulting, focusing on the fuzzy front end of innovatoin. By examining the
challenges faces by organizations like Eviden, Siedle and Symrise, the study identifies key
factors influencing innovation management practices. Through expert interviews and case
studies, the research evaluates the potential of IMS to streamline idea management, foster
collaboration, and align innovation afforts with strategic goals. The findings aim to provide
actionable recommendation for Eviden strengthening client innovation processes, ensuring
Eviden remains a leader in the digital transformation landscape
Lusíadas Saúde’s centralised Remote Medication Review Service: identifying beneficiaries and mapping risks
No full textThis thesis evaluates the viability of scaling and externalising Grupo Lusíadas Saúde’'s Remote
Medication Review Service. To achieve this objective, the paper is organised into two primary
sections. The initial component comprises of multiple analyses of Lusíadas' current market
context and internal operations. It assesses external and internal factors, key stakeholders,
technological resources, and potential risks. The second section includes a feasibility study, a
business plan and guidelines for service set-up and optimisation.
Significant findings indicate that Lusíadas is well-positioned and equipped to provide this
service, which has the potential to significantly improve patient safety and institutional
efficiency
The potential for tourism to grow rewilding Portugal's nature-based economy
No full textThis work project explores the potential for tourism to drive the growth of Rewilding Portugal's
nature-based economy. By analyzing the interplay between sustainable tourism and rewilding
practices, the research highlights the role of local stakeholders, tour operators, and tourists in
fostering ecological preservation and economic development. Utilizing qualitative methods
such as participant observation and stakeholder interviews, key market opportunities are
identified, including targeted ecotourism packages and the integration of local businesses into
a cohesive network. The findings underscore the importance of tailoring experiences to diverse
market segments, promoting year-round tourism, and enhancing public awareness of
rewilding's ecological and socio-economic benefits