86 research outputs found

    2022-2023 Xavier University Undergraduate and Graduate University Catalog

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    https://www.exhibit.xavier.edu/coursecatalog/1275/thumbnail.jp

    Korpuslinguistik

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    The study examines the concept of patterned language usage in scientific texts and, based on a data-led corpus analysis, describes scientific style at a formal and pragmatic level. With theoretical grounding in multiple linguistic sub-disciplines, the book makes a major contribution to text-type research, the discussion of standards, and to the study of writing

    Defesa por ataque: simulando ataques para promover fortes políticas de segurança organizacional

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    Cyber crime is continuously growing in current times due to the constant digitization of everyday activities. Recently, after the world was hit with the COVID-19 pandemic, this effect was even more noticeable. With more digital activity, cyber crime has a tendency to also increase. The simulation of adversaries as a testing tool is one of the most important instruments when evaluating an organization’s security. Penetration tests are not enough, as attackers resort to many other methods such as social engineering and its techniques (phishing, impersonation, tailgating, etc.). By simulating a full scale attack with minimal restrictions, "red teaming" is introduced. There was an attempt to perform a red team assessment to the University of Aveiro in order to evaluate, test and improve the security policies of the organization. However, due to legal and bureaucratic restrictions related mostly to data protection policies and other privacy measures, the plan was cut short to merely the planning of the red team. The TIBER-EU Framework was also introduced, representing the state of the art guidelines to red teaming in Europe. This framework was followed during the planning of the assessment, which allowed me, the author of this thesis and also the emulated red team, to find a couple of flaws in the University’s security by executing brief threat intelligence analysis sessions.O cibercrime está continuamente a crescer nos tempos atuais devido à constante digitalização das atividades do quotidiano. Recentemente, após a pandemia de COVID-19 ter atingido o planeta, este efeito foi ainda mais acentuado. Com mais atividade digital, o cibercrime tem também uma tendência a aumentar. A simulação de adversário como ferramenta de testagem é um dos instrumentos mais importantes quando se avalia a segurança de uma organização. Testes de intrusão não são suficientes, pois os atacantes recorrem a muitos outros métodos como à engenharia social e às respetivas técnicas (phishing, personificação, tailgating, etc.). O conceito "red teaming" é introduzido através da simulação de um ataque de larga escala com restrições mínimas. Nesta dissertação houve uma tentativa de executar um teste de red team à Universidade de Aveiro com o objetivo de avaliar, testar e melhorar as políticas de segurança da organização. No entanto, devido a restrições legais e bureocráticas relacionadas maioritariamente com políticas de proteção de dados e outras medidas a favor da privacidade, o plano inicial ficou apenas pelo planeamento de um teste red team. O TIBER-EU Framework foi também introduzido, contendo as normas consideradas como estado da arte no que toca a red teaming na Europa. Estas diretrizes foram seguidas durante o planeamento do teste, o que me permitiu, como autor da dissertação e único membro da red team simulada, encontrar algumas falhas de segurança na Universidade através de breves sessões de análise de threat intelligence.Mestrado em Ciberseguranç

    The Secondary Use of Longitudinal Critical Care Data

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    Aims To examine the strengths and limitations of a novel United Kingdom (UK) critical care data resource that repurposes routinely collected physiological data for research. Exemplar clinical research studies will be developed to explore the unique longitudinal nature of the resource. Objectives - To evaluate the suitability of the National Institute for Health Research (NIHR) Critical Care theme of the Health Informatics Collaborative (CCHIC) data model as a representation of the Electronic Health Record (EHR) for secondary research use. - To conduct a data quality evaluation of data stored within the CC-HIC research database. - To use the CC-HIC research database to conduct two clinical research studies that make use of the longitudinal data supported by the CC-HIC: - The association between cumulative exposure to excess oxygen and outcomes in the critically ill. - The association between different morphologies of longitudinal physiology—in particular organ dysfunction—and outcomes in sepsis. The CC-HIC The EHR is now routinely used for the delivery of patient care throughout the United Kingdom (UK). This has presented the opportunity to learn from a large volume of routinely collected data. The CC-HIC data model represents 255 distinct clinical concepts including demographics, outcomes and granular longitudinal physiology. This model is used to harmonise EHR data of 12 contributing Intensive Care Units (ICUs). This thesis evaluates the suitability of the CC-HIC data model in this role and the quality of data within. While representing an important first step in this field, the CC-HIC data model lacks the necessary normalisation and semantic expressivity to excel in this role. The quality of the CC-HIC research database was variable between contributing sites. High levels of missing data, missing meta-data, non-standardised units and temporal drop out of submitted data are amongst the most challenging features to tackle. It is the principal finding of this thesis that the CC-HIC should transition towards implementing internationally agreed standards for interoperability. Exemplar Clinical Studies Two exemplar studies are presented, each designed to make use of the longitudinal data made available by the CC-HIC and address domains that are both contemporaneous and of importance to the critical care community. Exposure to Excess Oxygen Longitudinal data from the CC-HIC cohort were used to explore the association between the cumulative exposure to excess oxygen and outcomes in the critically ill. A small (likely less than 1% absolute risk reduction) dose-independent association was found between exposure to excess oxygen and mortality. The lack of dosedependency challenges a causal interpretation of these findings. Physiological Morphologies in Sepsis The joint modelling paradigm was applied to explore the different longitudinal profiles of organ failure in sepsis, while accounting for informative censoring from patient death. The rate of change of organ failure was found to play a more significan't role in outcomes than the absolute value of organ failure at a given moment. This has important implications for how the critical care community views the evolution of physiology in sepsis. DECOVID The Decoding COVID-19 (DECOVID) project is presented as future work. DECOVID is a collaborative data sharing project that pools clinical data from two large NHS trusts in England. Many of the lessons learnt from the prior work with the CC-HIC fed into the development of the DECOVID data model and its quality evaluation

    The Unity of Plutarch's Work

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    The contributions to this volume inquire into many important issues of Plutarchean scholarship: the conditions under which Plutarch`s writings were split into two distinct corpora, his methods of work and the various authorial techniques employed, the interplay between Lives and Moralia, Plutarch and politics, Plutarch and philosophy, literary aspects of Plutarch`s œuvre, Plutarch on women, Plutarch in his epistemological and socio-historical context. The contributors offer in-sights that throw new light on Plutarch`s personality and illustrate the unity of his varied literary production

    Pseudo-contractions as Gentle Repairs

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    Updating a knowledge base to remove an unwanted consequence is a challenging task. Some of the original sentences must be either deleted or weakened in such a way that the sentence to be removed is no longer entailed by the resulting set. On the other hand, it is desirable that the existing knowledge be preserved as much as possible, minimising the loss of information. Several approaches to this problem can be found in the literature. In particular, when the knowledge is represented by an ontology, two different families of frameworks have been developed in the literature in the past decades with numerous ideas in common but with little interaction between the communities: applications of AGM-like Belief Change and justification-based Ontology Repair. In this paper, we investigate the relationship between pseudo-contraction operations and gentle repairs. Both aim to avoid the complete deletion of sentences when replacing them with weaker versions is enough to prevent the entailment of the unwanted formula. We show the correspondence between concepts on both sides and investigate under which conditions they are equivalent. Furthermore, we propose a unified notation for the two approaches, which might contribute to the integration of the two areas

    Afroasiatic. Data and perspectives

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    35th Symposium on Theoretical Aspects of Computer Science: STACS 2018, February 28-March 3, 2018, Caen, France

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    Online courses for healthcare professionals: is there a role for social learning?

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    Background: All UK postgraduate medical trainees receive supervision from trained supervisors. Training has traditionally been delivered via face to face courses, but with increasing time pressures and complex shift patterns, access to these is difficult. To meet this challenge, we developed a two-week massive open online course (MOOC) for faculty development of clinical supervisors. Summary of Work: The MOOC was developed by a group of experienced medical educators and delivered via the FutureLearn (FL) platform which promotes social learning through interaction. This facilitates building of communities of practice, learner interaction and collaboration. We explored learner perceptions of the course, in particular the value of social learning in the context of busy healthcare professionals. We analysed responses to pre- and post-course surveys for each run of the MOOC in 2015, FL course statistics, and learner discussion board comments. Summary of Results: Over 2015, 7,225 learners registered for the course, though 6% left the course without starting. Of the 3,055 learners who began the course, 35% (1073/3055) were social learners who interacted with other participants. Around 31% (960/3055) learners participated fully in the course; this is significantly higher than the FL average of 22%. Survey responses suggest that 68% learners worked full-time, with over 75% accessing the course at home or while commuting, using laptops, smart phones and tablet devices. Discussion: Learners found the course very accessible due to the bite-sized videos, animations, etc which were manageable at the end of a busy working day. Inter-professional discussions and social learning made the learning environment more engaging. Discussion were rated as high quality as they facilitated sharing of narratives and personal reflections, as well as relevant resources. Conclusion: Social learning added value to the course by promoting sharing of resources and improved interaction between learners within the online environment. Take Home Messages: 1) MOOCs can provide faculty development efficiently with a few caveats. 2) Social learning added a new dimension to the online environment
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