Browsing by Issue Date, starting with "2015-10-01"
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- A utilização de armas químicas e o uso unilateral da força : o caso da SíriaPublication . Silva, Marta Aleixo Dias Vieira da; Tavares, Maria Isabel Cantista de Castro
- Apical periodontitis and related risk factors: cross-sectional studyPublication . Correia-Sousa, Joana; Madureira, Ana Raquel; Carvalho, Manuel Fontes; Teles, Ana Moura; Pina-Vaz, IreneObjectives: The aim of this cross-sectional study was to investigate an association between the prevalence of root-filled teeth (RFT) or apical periodontitis (AP) and some systemic conditions or smoking habits in an adult Portuguese population. Methods: Medical histories, including age, gender, presence of cardiovascular disease (CVD), diabetes mellitus (DM), allergies, smoking status, and endodontic treatment data of 421 patients (10,540 teeth) were recorded. The prevalence of root filled teeth and the periapical status were assessed through panoramic radiographies. Periapical status was classified according to the Periapical index and AP was defined as PAI-score ≥3. Statistic analysis was performed with PASW Statistics 20.0 using qui-square tests, odds-ratio and confidence intervals (95%). Results: The overall prevalence of AP and RFT was 2.2% and 4.2%, respectively. RFT increased the possibility of having AP (p< 0.0001). Men's group showed a higher percentage of teeth with AP (p< 0.0001), less RFT (p = 0.05) and more residual roots (2.3%). Smoking increased the probability of having AP (p = 0.002) and RFT (p = 0.045). A positive correlation was observed between RFT and DM (p = 0.040). No statistically significant difference was found between AP and CVD, DM or allergies neither between RTF and CVD or allergies. Conclusions: The higher prevalence of AP and/or RFT in smoker subjects and in diabetic patients can suggest a relationship between oral and systemic health. More epidemiological studies are required before definitive conclusions can be made.
- A exploração dos recursos marinhos não vivos : o artigo 82º da CNUDMPublication . Cabral, Sara Celeste Dias; Moreira, Fátima Castro
- Work-related experiences in intensive and palliative care units and their relation to burnoutPublication . Teixeira, C.; Pereira, S. M.; Hernández-Marrero, P.; Carvalho, A. S.
- Lei nº 63-A/2008 de 24 de Novembro : a recapitalização do sistema bancário português e o recurso a obrigações de conversão condicionada em açõesPublication . Lima, Vanessa Rodrigues Gonçalves de; Santos, Pedro Miguel Rocheta Cassiano Gomes dos
- Constructionist and interpretative claims on polytonality: reframing the theorizing activity on twentieth-century multi-layered harmonyPublication . Martins, José OliveiraTwentieth-century polytonality is one of the most “under-theorized” as well as contested labels for a compositional practice, attributed to significant passages or complete movements in the music of Bartók, Stravinsky, Milhaud, Ravel, Britten, among many others. Despite recent investigations into the global pitch structure of polytonal compositions, the reception of the contested label reflects the tension between the constructionist aspects of the style, in which composers deliberately combine distinct layers resonant with tonality, and perceptual and interpretative claims, in which listeners-as-analysts resist and argue for perceptual and logical limitations of a musical conception that suggests split and concurrent tonal systems or centers. The larger significance of such contention, however, reveals the serious challenge polytonality posed to a much-valued repertoire: to invite distinct conceptual entities into the composition, whose diverging systemic forces undermined the coherence and completeness of “masterworks.” In contrast, the paper approaches polytonality by revisiting some of the theorizing activity on the subject in the 1920s to 40s by composers such as Koechlin, Milhaud, Casella and Bartók, which has subsequently been either dismissed or appropriated by the post- Schenkerian and set-theoretical approaches developed in the second part of the century. It is argued that notions of polytonality in the 1920s draw from a number of compositional phenomena, which actively explored new compositional arrangements and listening strategies. The paper inventories early accounts of polytonal practice into five key components, examines examples discussed by the above authors, and argues that polytonality casts a much wider net on compositional practice than traditionally granted, which could then be applicable to works of composers such as Lutoslawski and Ligeti.