Long-term drivers of broadband traffic in next-generation networks

This paper is concerned with long-term (20+ years) forecasting of broadband traffic in next-generation networks. Such long-term approach requires going beyond extrapolations of past traffic data while facing high uncertainty in predicting the future developments and facing the fact that, in 20 years, the current network technologies and architectures will be obsolete. Thus, "order of magnitude" upper bounds of upstream and downstream traffic are deemed to be good enough to facilitate such long-term forecasting. These bounds can be obtained by evaluating the limits of human sighting and assuming that these limits will be achieved by future services or, alternatively, by considering the contents transferred by bandwidth-demanding applications such as those using embedded interactive 3D video streaming. The traffic upper bounds are a good indication of the peak values and, subsequently, also of the future network capacity demands. Furthermore, the main drivers of traffic growth including multimedia as well as non-multimedia applications are identified. New disruptive applications and services are explored that can make good use of the large bandwidth provided by next-generation networks. The results can be used to identify monetization opportunities of future services and to map potential revenues for network operators

Neglected Tropical Diseases and migrants: a global health challenge amid access barriers and lack of gold standard diagnostics

This thesis concerns the Health of Migrants, with particular attention to "neglected" tropical diseases (NTDs) and other infections, and is based on the experience of daily screening and clinical work carried out for several years at the outpatient clinic of the National Institute for Migration and Poverty ( INMP) in Rome, and on scientific collaboration with the IRCCS Sacro Cuore Don Calabria for Infectious and Tropical Diseases and the University of Verona. The thesis is structured in 5 main chapters, each of which consists of a short introduction and one or more scientific articles (6 articles in total). Each chapter develops from a specific research question. Chapter 1 deals with the institutional and socio-cultural barriers that hinder migrants' access to the national health system, having as a case study the anthropological approach to Chagas' disease screening in Latin American migrants. Through the case study, a general approach to foreign patients that takes into account cultural, social and linguistic differences is indicated. Chapter 2 deals with infectious disease screening in neglected and 'invisible' persons: minors and trafficked Nigerian women, also addressing issues such as barriers to access to care for migrants. The first paper, on a large cohort, shows that migrant minors are generally healthy and do not pose a significant risk to the native population. The second work surprisingly shows that, in trafficked sex workers, noncommunicable NTDs, such as strongyloidiasis and schistosomiasis, are much more common than sexually transmitted diseases (STDs) and HIV. Chapter 3 describes the process that led, through complex inter-institutional work in which I was personally involved, as a member of the technical group and writing committee,to the first national guidelines in Italy for infectious disease screening in asylum seekers and refugees, which added two important non-communicable NTDs, namely strongyloidiasis and schistosomiasis, to the traditional communicable infections. Chapter 4 describes, through the largest prospective study ever conducted in Europe, the prevalence of the two NTDs and transmissible infections in African refugees and asylum seekers, noting an impressive number of people with urinary and intestinal schistosomiasis and (to a lesser extent) strongyloidiasis, and emphasizes the lack of a diagnostic gold standard for the two infections and the need for improved 4 screening tests. Chapter 5 deals with the evaluation of a new serological test (not yet commercially available) for strongyloidiasis, demonstrating reasonably good sensitivity and specificity. In the same line, Chapter 5 goes on to indicate current and future lines of research to improve the screening and diagnosis of schistosomiasis. We conclude that the healthcare management of migrants is extremely complex and challenging, involving at the same time science, ethics, solidarity, rights, politics and determinants of health, thus becoming a global health challenge

Gateway Architectures for Interaction between the Current Internet and Future Internet Architectures

In this project, we design, analyze, and implement a gateway for the SCION secure Internet architecture. This enables communication between legacy IP hosts and SCION hosts, and enables legacy IP traffic to be encapsulated and transported over the SCION network. We also analyze the security implications/benefits for legacy traffic to be interfaced with SCION and how the SCION Gateway can provide DDoS defense properties for the legacy hosts it serves, without requiring any infrastructure chang

Projeto em pré impressão no contexto da impressão digital

Mestrado em DesignA impressão digital é um negócio em crescimento e consequentemente sempre em desenvolvimento em termos tecnológicos. Uma das dificuldades para quem opera neste nicho de mercado é ensinar aos clientes as bases de como preparar ficheiros de arte-final, tendo em consideração inclusive, as limitações desta tecnologia digital. O intuito deste estudo é analisar a evolução da impressão e estudar a tecnologia da impressão digital, identificando as variadas etapas das fases de pré-impressão e arte-final a fim de aplicar os conhecimentos numa nova experiência informativa, interativa e comunitária. A materialização deste projeto passou pela criação de um website, adaptando esta plataforma, também a outros dispositivos como tablets e smartphones, facilitando a obtenção de conhecimento por parte do público em geral a receber, mas também a submeter informação enriquecedora para os conteúdos, passando do suporte físico para o suporte digital. Consequentemente, o conceito apresenta uma divulgação de informação didática sobre impressão digital e acabamentos possíveis nesta tecnologia e divulgação de informação relativa à fase de pré-impressão e publicar de informação relativa a como preparar a arte-final de um documento para impressão. Sendo assim, o projeto consistiu no desenvolvimento do design de um serviço para a criação de uma plataforma digital interativa “112 Digital: Dúvidas Existenciais da Impressão” aplicada à impressão digital, promovendo a recolha e partilha de conhecimento. Efetuaram-se várias pesquisas para averiguar os melhores casos de estudo, selecionando desde o website da marca Apple para perceber como o conceito de parallax scrolling poderia ser implementado na apresentação do desenvolvido neste projeto, como também de manuais de impressão, sendo o mais adequado a ser analisado o da empresa Sappi onde a estruturação de texto e imagem se tornou imperativo para a configuração das páginas desenhadas, até ao estilo de ilustrações infográficas do designer sul coreano Shung Wang Jan. Conclui-se que com o desenvolvimento deste projeto, as empresas associadas teriam uma maior capacidade de resposta aos projetos entregues para produção, visto que com a informação continuamente em atualização para o cliente, este conseguiria submeter uma arte-final sem falhas, fazendo com que a fase de pré-impressão fosse significativamente reduzida e a produção aumentaria, tal como os lucros de cada empresa.Digital printing is a growing business and consequently always in development in terms of technology. One of the difficulties for those who operate in this market niche is to teach customers the foundations of how to prepare files for artwork, taking into consideration the limitations of digital technology. The aim of this study is to analyse the evolution of printing and study the technology of digital printing, identifying the various stages of pre-printing and artwork in order to apply the knowledge in a new informative, interactive and community base experience. The materialization of this project began by creating a website, adapting this platform to other devices such as tablets and smartphones, facilitating the acquisition of knowledge by the the public in general, to receiving and submiting information to enrich the contents from the online page, passing from the physical support to the digital one. Consequently, the concept presents a disclosure of didactic information about digital printing and finishes as possible in this technology also dissemination of information concerning the stage of pre-press and distribution of information on how to prepare the artwork of a document to print. Thus, the project consisted in designing and developing a service for the creation of an interactive digital platform: “112 Digital: existential questions of Printing” applied to digital printing, promoting the collection and sharing of knowledge. Performing several rechearches to find the best case studies to use, from the parallax scrolling of Apple’s website, to understand how the concept could be implemented in the presentation developed in this project; as well as printing manuals, being the most suitable to be analysed “The Standard”, developed by the company Sappi, where the structuring of text and image became imperative for the configuration of the pages designed; and lastly the infographic drawing style of the south korean designer Shung Wang Jan. It is concluded that with the development of this project, the associated enterprises would have a greater capacity to produce the projects delivered, as the information would be continuously updated, the customer would always submit a flawless artwork, causing the phase of pre-press to be significantly reduced and the production increased, as well as the profits of each company

DePICT : a conceptual model for digital preservation

Digital Preservation addresses a significant threat to our cultural and economic foundation: the loss of access to valuable and, sometimes, unique information that is captured in digital form through obsolescence, deterioration or loss of information of how to access the contents. Digital Preservation has been defined as “The series of managed activities necessary to ensure continued access to digital materials for as long as necessary” (Jones, Beagrie, 2001/2008). This thesis develops a conceptual model of the core concepts and constraints that appear in digital preservation - DePICT (Digital PreservatIon ConceptualisaTion). This includes a conceptual model of the digital preservation domain, a top-level vocabulary for the concepts in the model, an in-depth analysis of the role of digital object properties, characteristics, and the constraints that guide digital preservation processes, and of how properties, characteristics and constraints affect the interaction of digital preservation services. In addition, it presents a machine-interpretable XML representation of this conceptual model to support automated digital preservation tools. Previous preservation models have focused on preserving technical properties of digital files. Such an approach limits the choices of preservation actions and does not fully reflect preservation activities in practice. Organisations consider properties that go beyond technical aspects and that encompass a wide range of factors that influence and guide preservation processes, including organisational, legal, and financial ones. Consequently, it is necessary to be able to handle ‘digital’ objects in a very wide sense, including abstract objects, such as intellectual entities and collections, in addition to the files and sets of files that create renditions of logical objects that are normally considered. In addition, we find that not only the digital objects' properties, but also the properties of the environments in which they exist, guide digital preservation processes. Furthermore, organisations use risk-based analysis for their preservation strategies, policies and preservation planning. They combine information about risks with an understanding of actions that are expected to mitigate the risks. Risk and action specifications can be dependent on properties of the actions, as well as on properties of objects or environments which form the input and output of those actions. The model presented here supports this view explicitly. It links risks with the actions that mitigate them and expresses them in stakeholder specific constraints. Risk, actions and constraints are top-level entities in this model. In addition, digital objects and environments are top-level entities on an equal level. Models that do not have this property limit the choice of preservation actions to ones that transform a file in order to mitigate a risk. Establishing environments as top-level entities enables us to treat risks to objects, environments, or a combination of both. The DePICT model is the first conceptual model in the Digital Preservation domain that supports a comprehensive, whole life-cycle approach for dynamic, interacting preservation processes, rather than taking the customary and more limited view that is concerned with the management of digital objects once they are stored in a long-term repository.EThOS - Electronic Theses Online ServiceGBUnited Kingdo

NASA patent abstracts bibliography: A continuing bibliography. Section 2: Indexes (supplement 18)

Entries for 3900 patents and patent applications citations for the period May 1980 through December 1980 are listed. Indexes for subject, invention, source, number, and accession number are included

NASA Patent Abstracts bibliography: A continuing bibliography. Section 2: Indexes (supplement 20)

Entries for approximately 4000 citations for the period May 1969 through December 1981 are listed. Subject, invention, source, number, and accession number indexes are included

Study of social and economic control in the United States and other nations.

Thesis (M.B.A.)--Boston University This item was digitized by the Internet Archive

NASA patent abstracts bibliography: A continuing bibliography. Section 2: Indexes (supplement 13)

This issue of the Index Section contains entries for 3386 patent and application for patent citations covering the period May 1969 through June 1978. The Index Section contains five indexes --- subject, inventor, source, number, and accession number