Key Phrase Extraction of Lightly Filtered Broadcast News

This paper explores the impact of light filtering on automatic key phrase extraction (AKE) applied to Broadcast News (BN). Key phrases are words and expressions that best characterize the content of a document. Key phrases are often used to index the document or as features in further processing. This makes improvements in AKE accuracy particularly important. We hypothesized that filtering out marginally relevant sentences from a document would improve AKE accuracy. Our experiments confirmed this hypothesis. Elimination of as little as 10% of the document sentences lead to a 2% improvement in AKE precision and recall. AKE is built over MAUI toolkit that follows a supervised learning approach. We trained and tested our AKE method on a gold standard made of 8 BN programs containing 110 manually annotated news stories. The experiments were conducted within a Multimedia Monitoring Solution (MMS) system for TV and radio news/programs, running daily, and monitoring 12 TV and 4 radio channels.Comment: In 15th International Conference on Text, Speech and Dialogue (TSD 2012

Crossing frontiers between tourism and demography. An empirical analysis based on European travellers’ behaviour

This paper aims to establish possible tourism demand scenarios of European travellers to Portugal based on the relationship with changing population structures. A combination of the EuROBAROMETER report 370 (“Attitudes of Europeans towards Tourism in 2013”) and the cohort-component method for population projections will allow the development of different possible tourism demand scenarios. Following the European report, individuals who travelled in 2013 were most likely to live in a household with two or more individuals. Thus, if elderly couples are together till later in their life and in better physiological shape, it is possible that the number of elderly individuals travelling for tourism purposes will increase in the near future. If we can expect tourists from developing countries to be younger due to their demographic dynamics than those from developed countries, where the ageing population is growing fast, we can expect that the percentage of the elderly among tourists will increase. Furthermore, the 2013 European report found that the combination of socio-demographic variables, such as, age, population, gender, household dimension, country of residence and trip purpose explained tourism demand scenarios for Portugal, confirming that seniors and families evidence a paramount sense of importance for the destination. In the literature there is a lack of discussion about the effects of demography in the future and the role of an ageing population in tourism demand choice patterns. We aim to contribute to filling this gap. Consequently, we strongly believe that this paper contributes to the literature by introducing a new field of discussion about the importance of demographic changes in shaping travel trends

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As TIC e as Tecnologias de Apoio na educação de pessoas com necessidades educativas especiais

Vivemos imersos em tecnologia. Para o bem e para o mal estamos sempre conectados, a receber notificações de diferentes origens. As fronteiras da comunicação esbateram-se. Do ensino básico ao superior são já várias as investigações que apontam vantagens e constrangimentos na utilização das TIC na educação, alicerçando-se sobretudo nas primeiras. Se é verdade que as TIC tornam as coisas mais fáceis para aqueles que se enquadram na norma, para a diversidade de pessoas que se afastam desta, pode fazer mesmo a diferença e tornar a ação no contexto possível. Desde de pessoas com desenvolvimento atípico até aos idosos, são várias as necessidades educativas especiais que podem ser minimizadas ou até mesmo suplantadas com recurso às TIC e às Tecnologias de Apoio. O presente capítulo pretende promover a reflexão acerca da utilização das TIC junto de pessoas com necessidades especiais, assim como apresentar soluções para adaptação de contextos de aprendizagem com recurso a estas ferramentas.info:eu-repo/semantics/publishedVersio

Potential Production of Theranostic Boron Nitride Nanotubes (64Cu-BNNTs) Radiolabeled by Neutron Capture

In this work, the radioisotope 64Cu was obtained from copper (II) chloride dihydrate in a nuclear research reactor by neutron capture, (63Cu(n, )64Cu), and incorporated into boron nitride nanotubes (BNNTs) using a solvothermal process. The produced 64Cu-BNNTs were analyzed by TEM, MEV, FTIR, XDR, XPS and gamma spectrometry, with which it was possible to observe the formation of64Cu nanoparticles, with sizes of up to 16 nm, distributed through nanotubes. The synthesized of 64Cu nanostructures showed a pure photoemission peak of 511 keV, which is characteristic of gamma radiation. This type of emission is desirable for Photon Emission Tomography (PET scan) image acquisition, as well as its use in several cancer treatments. Thus, 64Cu-BNNTs present an excellent alternative as theranostic nanomaterials that can be used in diagnosis and therapy by different techniques used in nuclear medicine

Klebsiella pneumoniae Spinal Epidural Abscess treated conservatively

Spinal infections are rare but potentially life-threatening disorders. A high level of clinical suspicion is necessary for rapid diagnosis and treatment initiation. The treatment combines both antibiotics and surgical intervention in the vast majority of cases. The authors report the case of a 84-year old female patient with a three week history of persistent lumbar back pain radiating to both thighs following a lower respiratory tract infection. She had lumbar spine tenderness but no neurological compromise. Her inflammatory markers were elevated and lumbar spine magnetic resonance imaging revealed L4-L5 spondylodiscitis with spinal epidural abscess. Blood cultures isolated Klebsiella pneumoniae and, since she was neurologically stable, conservative treatment with two-week intravenous gentamicin and eight-week intravenous ceftriaxone was initiated with positive inpatient and outpatient evolution.publishersversionpublishe

Determinants of European tourism demand in a demographic ageing society

This study identifies the senior European tourists determinants that explained their decisions to go on holidays. The empirical study was conducted among European tourists by applying a logit model. The model intends to explain the determinants related to the decision to go on holidays since the probability of a senior European tourist taking holidays in a country depends on a mix of motives as previous travel experience and demographic characteristics. Policy and theoretical implications are derived for contributing to the discussion between demographic variables and tourism demand choice patterns.The authors are pleased to acknowledge financial support from FCT – The Portuguese National Funding Agency for Science, Research and Technology - COMPETE, FEDER, Portugal 2020 under the Project UID/HIS/00057/2013 (POCI-01-0145-FEDER-007702) - CIDEHU