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- Determinantes na transição para a parentalidadePublication . Henriques, Carolina; Santos, Maria dos; Caceiro, Elisa; Ramalho, SóniaCONTEXTO: A transição para a parentalidade requer mudanças cognitivas, afetivas e comportamentais. A puérpera está dependente de vários fatores que poderão facilitar ou difcultar a transição para a maternidade, uma vez que o puerpério é um período bastante propício à existência de alterações psicoemocionais. OBJETIVO(S): Neste estudo, os objetivos passaram por procurar conhecer as características sociodemográfcas e obstétricas das puérperas internadas em serviços de Obstetrícia; Determinar o nível de alterações psicoemocionais percecionado pelas puérperas internadas em serviços de obstetrícia e Verifcar a relação entre o nível de alterações psicoemocionais e algumas caraterísticas sociodemográfcas e obstétricas das puérperas internadas em serviços de obstetrícia. METODOLOGIA: Estudo descritivo – correlacional. Aplicação de um questionário relativo aos dados sociodemográ!cos e obstétricos, e Escala de Avaliação de Alterações Psicoemocionais do Puerpério (EAPP) a uma amostra não probabilística de 194 mulheres puérperas internadas. RESULTADOS: A média de idades das participantes foi de 29 anos, maioritariamente eram casadas e possuíam o ensino secundário. A maioria destas puérperas desejaram e planearam a sua gravidez, tendo realizado um parto eutócico. O nível de alterações psicoemocionais nestas mulheres revelou-se baixo. Evidenciou-se que fatores como a frequência de aulas de preparação para o parto, o tipo de parto e o número de partos anteriores infuenciam o nível de alterações psicoemocionais. CONCLUSÕES: Ao estudarmos as alterações psicoemocionais que se podem desenvolver durante o período puerperal, concluímos que a grande maioria das mulheres puérperas revelou níveis de alterações psicoemocionais baixos, no entanto, pensamos ser fundamental debruçarmo-nos sobre os fatores que parecem infuenciar o mesmo, nomeadamente a frequência de cursos de preparação para o parto.
- Detection of QnrB54 and Its Novel Genetic Context in Citrobacter freundii Isolated from a Clinical CasePublication . Campos, Maria Jorge; Palomo, Gonzalo; Hormeño, Lorena; Rodrigues, Américo; Sánchez-Benito, Rosario; Píriz, Segundo; Quesada, AlbertoLETTER Quinolone resistance in Enterobacteriaceae is mediated by mutations in the quinolone resistance-determining regions (QRDR) of topoisomerase genes and/or by plasmid-mediated quinolone resistance determinants (PMQR) such as the qnr genes encoding pentapeptide repeat proteins (1). The qnrB family is represented by 80 different alleles (http://www.lahey.org/qnrStudies/); most of them originated from Citrobacter strains and spread to other Enterobacteriaceae species (2). This work describes the identification of a new allele of the quinolone resistance protein QnrB, QnrB54, in a human clinical isolate of Citrobacter freundii detected in Spain.
- Is integrated multitrophic aquaculture the solution to the sectors’ major challenges? – a reviewPublication . Almeida, Luana; Sousa, Nádia; Lopes, Sofia; Lemos, MarcoThe growing demand for fish products and the dwindling productivity of marine fish stocks due to the overexploitation of fisheries place the aquaculture industry as a key contributor to the global fish supply. The intensive development of aquaculture has raised a range of environmental concerns such as effluent discharge, excessive use of resources and dependence on commercial feed. In this context, the development of sustainable aquaculture systems is becoming the cornerstone for long-term aquaculture expansion, and to achieve environmental sustainability. Integrated multitrophic aquaculture (IMTA) is regarded as a suitable approach to limit aquaculture nutrients and organic matter outputs through biomitigation. The cocultured species are used as biofilters, and each level has its own independent commercial value, providing both economic and environmental sustainabil ity. Here, environmental issues of aquaculture and the current status of IMTA are reviewed and its future prospects discussed. Also, the opportunities to expand this systems’ complexity with increased added-value and trophic levels are introduced.
- Water Resources Impact Assessment Under Climate Change Scenarios in Mediterranean WatershedsPublication . Mourato, Sandra; Moreira, Madalena; Corte-Real, JoãoClimate models project a reduction in annual precipitation and an increase in temperature, which may lead to runoff shortages and a consequent water availability reduction, in some Mediterranean regions, such as southern Portugal. The impacts on water availability under different climate change scenarios are assessed using SHETRAN, a physically-based and spatially-distributed hydrological model. SHETRAN is calibrated and validated against daily runoff measurements at outlet and internal sections and against phreatic surfaces using a multi-basin, multi-location and multi-response approach. Nash-Sutcliff efficiency, volume deviation and coefficient of determination ranged, respectively, from 0.58 to 0.76, 0.59 to 0.79 and −9 to 15 %, in the calibration period, and from 0.54 to 0.75, 0.54 to 0.77 and −14 to 12 %, in the validation period. Three GCM and two RCM are used for control (1961–1990) and scenario (2071–2100) periods, under the A2 SRES emission scenario. Observed bias in the climate models’ projected precipitation and temperature are corrected with three bias correction methods. For the scenario period the climate models project a change in precipitation from +1.5 to −65 % and an increase in temperature from +2.7 to +5.9 °C. This trend in climate change projection is reflected in the annual runoff that decreases drastically, between 13 and 90 %, in southern Portugal by the end of the century. The runoff reduction is greater in all watersheds in Autumn and Spring with higher agreement between models and bias correction methods. The runoff decrease seems greater in the Guadiana river basin which is already under significant water stress. © 2015, Springer Science+Business Media Dordrecht.
- Optimality Conditions for Fractional Variational Problems with Dependence on a Combined Caputo Derivative of Variable OrderPublication . Tavares, Dina; Almeida, Ricardo; Torres, Delfim F. M.We establish necessary optimality conditions for variational problems with a Lagrangian depending on a combined Caputo derivative of variable fractional order. The endpoint of the integral is free, and thus transversality conditions are proved. Several particular cases are considered illustrating the new results.
- Seismic response of current RC buildings in Kathmandu ValleyPublication . Chaulagain, Hemchandra; Rodrigues, Hugo; Spacone, Enrico; Varum, HumbertoRC buildings constitute the prevailing type of construction in earthquake-prone region like Kathmandu Valley. Most of these building constructions were based on conventional methods. In this context, the present paper studied the seismic behaviour of existing RC buildings in Kathmandu Valley. For this, four representative building structures with different design and construction, namely a building: (a) representing the non-engineered construction (RC1 and RC2) and (b) engineered construction (RC3 and RC4) has been selected for analysis. The dynamic properties of the case study building models are analyzed and the corresponding interaction with seismic action is studied by means of non-linear analyses. The structural response measures such as capacity curve, inter-storey drift and the effect of geometric non-linearities are evaluated for the two orthogonal directions. The effect of plan and vertical irregularity on the performance of the structures was studied by comparing the results of two engineered buildings. This was achieved through non-linear dynamic analysis with a synthetic earthquake subjected to X, Y and 45° loading directions. The nature of the capacity curve represents the strong impact of the P-delta effect, leading to a reduction of the global lateral stiffness and reducing the strength of the structure. The non-engineered structures experience inter-storey drift demands higher than the engineered building models. Moreover, these buildings have very low lateral resistant, lesser the stiffness and limited ductility. Finally, a seismic safety assessment is performed based on the proposed drift limits. Result indicates that most of the existing buildings in Nepal exhibit inadequate seismic performance.