Delta Air Lines, Inc. flying high in a competitive industry an equity research report on Delta Air Lines, Inc. (DAL: NYSE)

This equity research report will first be focusing on the North American Arline industry, analyzing its current form, as well as looking at industry’s opportunities and threats ahead. On top of this, an outlook over the airline industry will also be presented in order to give the investors an accurate view of the present and the future. A further analysis will then be conducted with regards do Delta AirLines Inc. (DAL:NYSE), applying the previous research to provide a fair valuation for the group, resulting in an sustained recommendation of whether an investor should consider invest in DAL, or not

Resumo/Abstract

Resumo: Este trabalho procurou uma resposta para a aparente contradição entre os actos de preservar e de desenvolver no trabalho museológico. E desejava, com essa resposta, obter uma compreensão mais profunda sobre a Museologia. Utilizando a metodologia de investigação “Grounded Theory” (Glaser & Strauss, 1967; Ellen, 1992; Mark, 1996; Marshall & Rossman, 1999) adoptou a definição de museu dos Estatutos do ICOM (2001) como ponto de partida conceptual para o desenrolar da pesquisa. A - Com o esforço necessário à obtenção da resposta inicial o trabalho pôde alcançar os seguintes resultados: i) Discerniu as fases e a racionalidade do processo museológico, através do qual os objectos adquirem a “identidade patrimonial”. ii) Formulou o conceito de “objecto museológico” numa acepção distinta do de Património ou de “objecto patrimonial”, permitindo confirmar que a contradição formulada na hipótese inicial só poderia desaparecer, ou ser conciliada, num paradigma de trabalho museológico concebido como um acto de comunicação. iii) Propôs, em consequência, um diferente Programa para a orientação do trabalho museológico, demonstrando que garantiria ao património uma maior perenidade e transmissibilidade, sendo ainda capaz de incluir o património referente à materialidade, à iconicidade, à oralidade e à gestualidade dos objectos. iv) Propôs um Léxico de Conceitos capaz de justificar essas novas propostas. v) Sugeriu um índice de desenvolvimento museal (IDM = Σ ƒξ [IP.ID.IC] / CT.CR) para ser possível avaliar e quantificar o trabalho museológico. B – Para o objectivo de uma compreensão mais profunda da Museologia o trabalho alcançaria os seguintes resultados: vi) Verificou a necessidade de se dominarem competências de Gestão, para o trabalho museológico não se restringir apenas a um tipo de colecções ou de património. vii) Sugeriu, para ser possível continuar a investigar a Museologia como um novo ramo ou disciplina do saber, a necessidade estratégica de a ligar ao estudo mais vasto da Memória, apontando dois caminhos: Por um lado, considerar a herança filogenética dos “modos de guardar informações” entre os diferentes organismos e sistemas (Lecointre & Le Guyader, 2001). Por outro lado, considerar os constrangimentos ocorridos durante a ontogenia e a maturação individual que obrigam a ter em consideração, no processamento da memória e do património (codificação, armazenamento, evocação e recuperação, esquecimento), a biologia molecular da cognição (Squire & Kandel, 2002).Palavras-chave: Museologia – Património - Memória - Processo Museológico - Objecto Museológico - Museu.Abstract: The main goal of this work is to seek an answer for the apparent contradiction between to preserve and to develop in the scope of museum work. That answer will hopefully produce a deeper understanding on Museology. Using the investigation/research method “Grounded Theory” (Glaser & Strauss, 1967; Ellen, 1992; Mark, 1996; Marshall & Rossman, 1999), the definition of museum adopted was the one inscribed in the ICOM Statues (2001), and this was taken as a conceptual starting point for the development of the research. A – With the necessary effort put in obtaining the first answer, this work reached the following results: I) Discriminated the phases and rationality of the museological process, through which objects acquire its “patrimonial identity”. ii) The concept of “museological object” was formulated in a different sense than “heritage” or “patrimonial object”, allowing, this way, to confirm that the contradiction formulated in the initial hypothesis could only disappear, or to be conciliated, through a paradigm of museological work built as a communication act. iii) Consequently, it was proposed a different Program for the guidance of the museological work, thus demonstrating that this guaranties to heritage a greater perennity and transmissibility, being also able to include the patrimony related to materiality, iconicity, orality and gesture of the objects. iv) A glossary of concepts able to justify these new propositions was built. v) An Index of Museological Development (IDM = Σƒx [IP.ID.IC]/ CT.CR) was suggested, in order to make possible the evaluation and quantification of the museological work. B – To favour a deeper understanding about Museology, this work achieved the following results: vi) It was verified the need of mastering management competencies, thus avoiding the restriction to a given type of collections or patrimony/heritage. vii) It was suggested that, in order to be possible to continue to investigate/research Museology as a new branch or discipline of Knowledge, there is a strategic need for its connection to a wider study of the Memory, pointing out two possible paths: On one hand, to considerer the phylogenetic heritage of the “ways to save and to manage information” among organisms and systems (Lecointre & Le Guyader, 2001); and, on the other hand, the ontogeny constraints that make compulsory to consider the molecular biology of the cognition (Squire & Kandel, 2002), in the individual processing of memory and patrimony (encoding, storage, evocation and retrieval, forgetting).Key Words: Heritage - Memory - Museological Process – Museological Object - Museology - Museum

A capela do Palacio Archiepiscopal de Braga: entre a eloquência setecentista e o abandono republicano

info:eu-repo/semantics/publishedVersio

Optimizing load balancing routing mechanisms with evolutionary computation

Link State routing protocols, such as Open Shortest Path First (OSPF), are widely applied to intra-domain routing in todays IP networks. They provide a good scalability without lost of simplicity. A router running OSPF distributes traf- fic uniformly over Equal-cost Multi-path (ECMP), enabling a better distribution of packets among the existent links. More recently, other load balancing strategies, that consider non even splitting of traffic, have been put forward. Such is the case of the Distributed Exponentially-weighted Flow SpliTting (DEFT), that enables traf- fic to be directed through non equal-cost multi-paths, while preserving the OSPF simplicity. As the optimal link weight computation is known to be NP-hard, intel- ligence heuristics are particularly suited to address this optimization problem. In this context, this work compares the solutions provided by Evolutionary Al- gorithms (EA) for the weight setting problem, considering both ECMP and DEFT load balancing alternatives. In addition to a single objective network congestion optimization problem, both load balancing schemes are also applied to a multi- objective optimization approach able to attain routing configurations resilient to traffic demand variations.COMPETE: POCI-01-0145-FEDER-007043 and FCT - Fundação para a Ciência e TecnologiaThis work has been supported by COMPETE: POCI-01-0145-FEDER-007043 and FCT -Fundação para a Ciência e Tecnologia within the ProjectScope: UID/CEC/00319/2013

Integration between EVM and Risk Management: proposal of an automated framework

"World Conference on Information Systems and Technologies (WorldCIST 2017)The integration between Earned Value Management (EVM) and Project Risk Management immediately raises the question of the relationship between the two methods, even though EVM and project risk management share the same function in project management: promote the project success. At first glance it seems to be no further connection between these two methodologies, but the fundamentals of EVM are fully influenced by both risk management and risk analyses. This paper seeks to clarify the mechanisms of this function, and in which points they meet or affect each other, with reference to PMBoK®. The several techniques and methods are somewhat disperse and not always coherent. With the several assumptions resulting from the interconnection between the two methods, a framework of integration between them is proposed, as well as its practical implementation in Excel, resulting in a set of tools that can be useful in monitoring and controlling a project.This work has been supported by COMPETE: POCI-01-0145-FEDER-007043 and FCT – Fundação para a Ciência e Tecnologia within the Project Scope: UID/CEC/00319/2013.info:eu-repo/semantics/publishedVersio

Cogeração e trigeração. Um caso prático

A necessidade de diminuir os consumos de energia, não só por questões financeiras mas, essencialmente, por questões ambientais fez com que fossem feitos esforços no sentido da implementação de sistemas de energias renováveis ou mesmo com rendimentos o mais elevados possíveis. Surge, então, em alternativa às grandes centrais convencionais e às redes de distribuição em alta tensão, a produção descentralizada de eletricidade, sendo que a cogeração era em finais de 2010 segundo a Galp Energia, responsável pela produção de cerca de 12% de todo o consumo de eletricidade no país e por 34% da produção em regime especial. A cogeração/trigeração surge como uma tecnologia interessante ao garantir economias de energia e competitividade acrescida às empresas e consiste basicamente na produção combinada de energia térmica e elétrica num mesmo equipamento, destinando‐se ambas ao consumo da própria empresa ou de terceiros, evitando ou atenuando a utilização de equipamentos próprios de produção de calor e aquisição de energia elétrica à rede. Neste artigo vamos familiarizar‐nos com esta solução energética, a cogeração/trigeração, que prova ser bastante eficiente, aplicando os princípios da produção combinada de eletricidade, calor e frio

Hybrid IP/SDN routing for inter-data center communications

Internet Service Providers (ISPs) and dedicated inter-Data Center Wide Area Networks have been exploring Software-Defined Networking (SDN) features to achieve a high utilization of the available resources. This work proposes a scalable hybrid IP/SDN routing model, and optimization procedures fostered by Evolutionary Computation algorithms, to achieve near optimal network resources utilization under changing traffic requirements.This work has been supported by national funds through FCT – Fundação para a Ciência e Tecnologia within the Project Scope: UID/CEC/00319/2019.info:eu-repo/semantics/publishedVersio

eABC: scientific publications bibliografic archive

The paper intends to present eABC – Scientific Publications Bibliographic Archive of University of Aveiro’. It describes the motivation that induced its implementation, advantages for users and for all those whom the system serves. Some of the systems functionalities will be presented, along with a description on how to use them. Finally, the current status of the system - as it is being used by the University of Aveiro - will be presented, with the addition of an explanation on how this system helps in the creation of mechanisms that enable the adaptability and flexibility of systems to improve the scientific community dynamics