Browsing by Issue Date, starting with "2006-12"
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- Outras RetóricasPublication . Carvalho, João Carlos Firmino Andrade de; Carvalho, Ana Alexandra Mendonça Seabra da Silva Andrade deOutras Retóricas reúne setes autores, cujos textos abordam a Retórica sob múltiplos prismas: como disciplina curricular de uma licenciatura, em relação com a literatura de viagens do século XVI, com a arte literária dos séculos XVI e XVII, com o romance epistolar francês dos séculos XVII e XVIII, com a arte digressiva nos séculos XVIII e XIX, com a construção da personagem romanesca em vários momentos históricos com particular destaque para os séculos XIX e XX e, finalmente, com o discurso matemático.
- A cadeira de Retórica no curso de Licenciatura de Estudos Artísticos e CulturaisPublication . Carvalho, João Carlos Firmino Andrade deNo ano lectivo de 2005-2006, entrou em funcionamento, na Faculdade de Ciências Humanas e Sociais da Universidade do Algarve, o primeiro ano do Curso de Licenciatura de Estudos Artísticos e Culturais, em cujo segundo semestre surge a cadeira de Retórica Geral.
- O metatexto prefacial e a retórica da autenticidade no romance epistolar francês (das "Lettres Portugaises" a "Les Liaisons Dangereuses")Publication . Carvalho, Ana Alexandra Mendonça Seabra da Silva Andrade deNo dealbar do Terceiro Milénio, era da Comunicação à escala global, verifica-se o incontestável regresso, reformulado e revigorado, dessa velha senhora chamada Retórica, disciplina de grande utilidade em vários domínios onde impera a força persuasiva da palavra, nomeadamente no campo dos Estudos Literários.
- Why do raptors take domestic prey? The case of Bonelli's eagles and pigeonsPublication . Palma, Luis; Beja, Pedro; Pais, Miguel; Cancela Da Fonseca, LuísPredator conservation management requires detailed understanding of the ecological circumstances associated with predation, especially that on economically valuable prey. We examined the mechanisms behind Bonelli's eagle Hieraaetus fasciatus predation on prey of domestic origin, using dietary data from 22 pairs breeding in south-west Portugal (1992-2001) together with information on landscape composition and prey availability. 2. Numerically, 42.7% (37.7% in biomass) of eagle prey comprised domestic species, about 70% of which were rural pigeons Columba livia and the remainder were racing pigeons Columba livia and domestic fowl Gallus gallus. Rabbits Oryctolagus cuniculus, red-legged partridges Alectoris rufa and jays Garrulus glandarius were the most frequent wild prey (43.1%; 50.8% in biomass). This dietary pattern was remarkably stable over a decade, but within each year the intake of pigeons almost halved over the course of the breeding season. 3. Landscape composition significantly affected the dietary proportion of wild and domestic prey items. This was particularly evident in territories dominated by eucalyptus Eucalyptus globulus plantations, where there was reduced consumption of rural pigeons and partridges, an increased intake of minor avian prey items and greater diversity in the diet overall. 4. Bonelli's eagles showed type II functional responses while preying on the most important wild (rabbit) and domestic (rural pigeon) prey, although the former was much stronger. Eagle predation on rabbits declined with increasing abundance of pigeons, and vice versa, but there was no switching in the traditional sense, as selection between these two species was inversely frequency dependent. 5. Synthesis and applications. Predation by Bonelli's eagle on domestic pigeons results from a combination of high vulnerability of the pigeons to eagles and a shortage of key wild prey such as rabbits and partridges, especially during the early breeding season. Given the relatively low economic value of rural pigeons and their importance in the diet of Bonelli's eagles, they could probably be used as a conservation tool to enhance food resources in breeding territories and to deflect predation from more valuable prey such as partridges and racing pigeons.
- Assessing mackerel scad, Decapterus macarellus, in Cape Verde: using a Bayesian approach to biomass dynamic modelling in a data-limited situationPublication . Stobberup, Kim A.; Erzini, KarimThe fisheries for mackerel scad, Decapterus macarellus, are particularly important in Cape Verde, constituting almost 40% of total catches at the peak of the fishery in 1997 and 1998 ( 3700 tonnes). Catches have been stable at a much lower level of about 2 100 tonnes in recent years. Given the importance of mackerel scad in terms of catch weight and local food security, there is an urgent need for updated assessment. Stock assessment was carried out using a Bayesian approach to biomass dynamic modelling. In order to tackle the problem of a non-informative CPUE series, the intrinsic rate of increase, r, was estimated separately, and the ratio B-0/X, initial biomass relative to carrying capacity, was assumed based on available information. The results indicated that the current level of fishing is sustainable. The probability of collapse is low, particularly in the short-term, and it is likely that biomass may increase further above B-msy, indicating a healthy stock level. It would appear that it is relatively safe to increase catches even up to 4000 tonnes. However, the marginal posterior of r was almost identical to the prior, indicating that there is relatively low information content in CPUE. This was also the case in relation to B-0/X There have been substantial increases in fishing efficiency, which have not been adequately captured by the measure used for effort (days or trips), implying that the results may be overly optimistic and should be considered preliminary. (c) 2006 Elsevier B.V. All rights reserved.
- The market features of imported non-indigenous polychactes in Portugal and consequent ecological concernsPublication . Costa, Pedro Fidalgo E.; Gil, João; Passos, Ana Maria; Pereira, Paula; Melo, Pedro; Batista, Frederico; Cancela Da Fonseca, LuísThe importance of the market for polychaetes dramatically increased after the discovery of their potential as food in aquaculture. In Portugal, the gathering of polychaetes solely front natural populations is not sufficient to meet market demand, both as bait for sea anglers and as a food item in aquaculture. The requests for worms to polychaete dealers by Portuguese and Spanish seafarms have increased during recent years. Due to the lack Of intensive Culture of these worms in Portugal and the proximity of southern Spanish farms, a large component of imported polychaetes that arrive in Portugal at Lisbon Airport go directly to Spain by road. fit 2002 and 2003 a total of 12,728,379 and 16,866,839 polychaetes respectively were imported to Europe via Lisbon Airport from China and the USA. In 2003 the imports from China and the USA realised 716,180 and 291,845 US dollars respectively. Two species were reported to have been imported in these years, namely the Korean blue ragworm Perinereis aibuhitensis and the American bloodworm Glycera dibranchiata. Imports of non-indigenous species, which are traded and sold alive. may increase the risk of accidental introduction into the wild. This is of special concern as Perinereis aibuhitensis has been successfully reared in captivity within the range of environmental conditions existing in the Ria Formosa coastal lagoon. Other risks associated with introduced species are the transport of foreign pathogens and other associated non-native organisms, which may act as carriers of disease.
- Interaction between a verbal working memory network and the medial temporal lobePublication . Petersson, Karl Magnus; Gisselgard, Jens; Gretzer, Monica; Ingvar, MartinThe irrelevant speech effect illustrates that sounds that are irrelevant to a visually presented short-term memory task still interfere with neuronal function. In the present study we explore the functional and effective connectivity of such interference. The functional connectivity analysis suggested an interaction between the level of irrelevant speech and the correlation between in particular the left superior temporal region, associated with verbal working memory, and the left medial temporal lobe. Based on this psycho-physiological interaction, and to broaden the understanding of this result, we performed a network analysis, using a simple network model for verbal working memory, to analyze its interaction with the medial temporal lobe memory system. The results showed dissociations in terms of network interactions between frontal as well as parietal and temporal areas in relation to the medial temporal lobe. The results of the present study suggest that a transition from phonological loop processing towards an engagement of episodic processing might take place during the processing of interfering irrelevant sounds. We speculate that, in response to the irrelevant sounds, this reflects a dynamic shift in processing as suggested by a closer interaction between a verbal working memory system and the medial temporal lobe memory system. (c) 2006 Elsevier Inc. All rights reserved.
- Identification of Sparus aurata bone morphogenetic protein 2: Molecular cloning, gene expression and in silico analysis of protein conserved features in vertebratesPublication . Rafael, Marta S.; Laizé, Vincent; Cancela, LeonorBone morphogenetic protein 2 (BMP-2) is a secreted signaling molecule that acts as an inducer of bone formation and a regulator of embryonic development. The objectives of this work were as follows: (1) to clone the full-length cDNA of BMP-2 in a marine fish model, (2) analyze its gene expression during development, in adult tissues and in cell lines, and (3) identify protein conserved features of vertebrate BMP-2. Using a combination of RT- and 5′-RACE-PCR, a 1653-bp fragment corresponding to Sparus aurata BMP-2 cDNA (SaBMP-2) was amplified. Levels of SaBMP-2 gene expression were estimated using quantitative real-time PCR and shown to be strongly increased (150-fold induction) at gastrulation, thus suggesting a key role for BMP-2 in fish development. Tissue distribution of SaBMP-2 mRNA revealed highest levels in the calcified tissues bone, caudal fin and scales and in liver. BMP-2 was also found to be highly expressed in S. aurata bone-derived cell lines VSa13 and VSa16 and to be up-regulated (more than 10-fold induction) in mineralized VSa13 chondrocyte-like cells. Using bioinformatic tools and all vertebrate protein sequences available, conserved features of BMP-2 were characterized. The mature protein was shown to be highly conserved across 20 species indicating that BMP-2 function has been conserved throughout evolution, a finding that is in agreement with the widely accepted view of the important role played by BMPs in vertebrate development.
- Soft-computing-based car body deformation and EES determination for car crash analysis systemsPublication . Varkonyi-Koczy, A. R.; Rovisco, Ana; Ruano, M. GraçaCar body deformation modeling plays a very important role in crash accident analyses, as well as in safe car body design. The determination of the energy absorbed by the deformation and the corresponding energy equivalent speed can be of key importance; however, their precise determination is a very difficult task. Starting from the results of crash tests, intelligent and soft methods offer a way to model the crash process itself, as well as to determine the absorbed energy, the before-crash speed of the car, etc. In this paper, a modeling technique and an intelligent expert system are introduced, which, together, are able to follow the deformation process of car bodies in car crashes and analyze the strength of the different parts, which can significantly contribute to the improvement of the safety of car bodies.
- A qualidade do currículo na crechePublication . Marques, Maria João Saraiva; Nabuco, Maria Emília MonteiroCurriculum in the Infant/Toddler Care Centres may be understood as a essential part of the individual learning process and may be considered as stemming from community’s attitude towards earl childhood and, specifically, towards the age period starting from 24 to 36 months of the age during which children are in infant/toddler care centres. Growing concerns about the quality of the curriculum in the infant/toddler care centres are expressed through the growing number of these centres open to the public and through a progressive standardization of the profissional training of child care providers. The main aim of this study was to analyse the curriculum in Infant/Toddler Care Centres and the quality of that curriculum. Specific aims were: to discriminate sorts of curricula used nowadays and to clearly identify road and training needs of professional child care providers so that curriculum in infant/toddler child care may have the maximum quality possible. The study was conducted inside Lisbon’s urban area and involved nine Infant/Toddler Care Centre institutions with diverse pedagogic practices. Nine infant/toddler care providers in activity were required to participate in the study, given they were presently working with children from 24 to 36 months of age. Data were collected through a semi-structured interview and through observation regarding ITERS-R items defined by Harms, Cryer and Clifford (2003) and were processed according to content analysis and statistical procedures. Data showed that professional infant/toddler care providers should be socially recognized as they work in Infant/Toddler Care Centres and that curriculum quality should be always closely associated with global infant/toddler care services.