Com muito gosto. Alimentação saudável, vida saudável

Em Portugal, as tradições culinárias e gastronómicas são muito diversificadas. No Algarve, os ingredientes da culinária são muito variados, incluem os produtos da horta, do quintal, da agricultura industrial, da capoeira, da pecuária, da mariscagem e da pesca. Estes produtos variados são consumidos em natureza, cozinhados em fresco ou processados por métodos de conservação, que tanto podem ser a aplicação atual de práticas milenares, como acontece no fumeiro tradicional como constituir verdadeiras inovações da tecnologia alimentar.

Desenvolver o sentido de número no pré-escolar

Mestrado em Educação Pré-Escolar da Universidade do Algarve.

Gastronomia Algarvia/Dieta Mediterrânica?

The Mediterranean Diet concept was formulated during the sixties, in association with the food consumption pattern of Mediterranean areas that produced olive oil and shared common health styles. These areas, besides their own cultural and religious differences, share common food habits, such as: - The use of olive oil (supplier of monounsaturated fatty acids and antioxidants); - The abundant use of cereals, mainly under the form of excellent quality bread, flour and pasta (providing fibre and energy); - Large and variegate consumption of fruit (fresh and dried), nuts and vegetables (colourful, rich in fibre, antioxidants and other protective materials); - Abundant use of herbs and spices (rich in antioxidants and other protective materials); - Simple culinary methods, using short cooking times and low temperatures (which enhance the preservation of food nutritional and sensorial characteristics). The Mediterranean Diet reflects a set of characteristics that make it internationally recognized as a health promoter eating pattern, where the relation between monounsaturated and saturated fatty acids is highly advantageous for the former, fibre, vitamins and natural antioxidants intake is high, together with a low consumption of animal protein and salt. The obtained results show contents in protein, lipid and carbohydrates very adequate to the “DRI”; The relation between mono and saturated fatty acids (40:9) should be emphasised, together with the high fibre content. Protective nutrients show remarkable results, with a wide variety of vitamins and minerals, in particular Vitamin A, complex B vitamins, biotin, vit. E, folic acid, iron, manganese and selenium, that are widely recognised as important antioxidants and responsible for the good function of the immune system. In conclusion, tomato soup, consumed traditionally as a poor meal, shows to be a health promoter nutritionally complete recipe.

Entomofauna associated with the olive tree in southern Portugal

Since 2004 several studies have been carried out in order to identify the main insect species that usually inhabiting the olive ecosystem. The field trials have taken place in two olive groves, one situated in Olhão and the other one in Loulé, both in Algarve and also under Integrated Pest Management (IPM). The sampling techniques used differ according to their purpose (sticky traps, pheromone traps, pitfall traps and samples of aerial parts of the trees such as inflorescences, leaves, fruits and branches). Results showed that the main insect pests of olive tree in southern Portugal were the olive fruit fly Bactrocera oleae Gmelin (Diptera: Tephritidae) and the olive moth Prays oleae Bernard (Lepidoptera: Hyponeumetidae). Other insect pests were also found in our olive groves namely the olive psyllid Euphyllura olivina Costa (Homoptera: Psyllidae), the olive dark beetle Phloeotribus scarabaeoides Bernard (Coleoptera: Curculionidae), the mediterranean black scale Saissetia oleae (Olivier) (Homoptera: Coccidae) and the olive thrip Liothripes oleae Costa (Thysanoptera: Phlaeothripidae). Concerning the auxiliary insects that were found in our olives groves they belong to the following orders and families: Diptera (Syrphidae), Coleoptera (Carabidae, Coccinelidae and Staphylinidae), Hemiptera (Anthocoridae and Miridae), Neuroptera (Chrysopidae) and Hymenoptera (Braconidae, Encyrtidae, Eulophidae, Formicidae and Trichogrammatidae).

Contribución al estudio del patrimonio de Cacela: cartografía, arquitectura y paisaje en el contexto del algarve oriental en Portugal

El presente artículo estudia la cartografía de Cacela en el sur de Portugal con el propósito de interpretar su transformación a través del tiempo, considerando la arquitectura, el urbanismo y el paisaje de forma integrada. La lectura de esa transformación se lleva de la mano de las principales cartas de Cacela que coinciden con el inicio del siglo XVII, la aproximación al final del Antiguo Régimen y la transición del siglo XIX al XX, asociando cada uno de estos tiempos a un modo particular de representación. La interpretación de las diferentes cartas está organizada, en términos me- todológicos, a partir del recurso a fuentes escritas de la época, culminando con la elaboración de un dibujo final que contiene la representación del espacio edificado y del paisaje de Cacela a mediados del siglo pasado. Este trabajo se inscribe en una investigación más amplia sobre las aglomeraciones urbanas de pequeña dimensión en las diver- sas subunidades geográficas del sur de Portugal, comprendiendo el paisaje, la morfología urbana y el levantamiento integral de todo el núcleo edificado.

Biochemical indices and life traits of loggerhead turtles (Caretta caretta) from Cape Verde Islands

The loggerhead turtle (Caretta caretta) is an endangered marine reptile for whom assessing population health requires knowledge of demographic parameters such as individual growth rate. In Cape Verde, as within several populations, adult female loggerhead sea turtles show a size-related behavioral and trophic dichotomy. While smaller females are associated with oceanic habitats, larger females tend to feed in neritic habitats, which is reflected in their physiological condition and in their offspring. The ratio of RNA/DNA provides a measure of cellular protein synthesis capacity, which varies depending on changes in environmental conditions such as temperature and food availability. The purpose of this study was to evaluate the combined use of morphometric data and biochemical indices as predictors of the physiological condition of the females of distinct sizes and hatchlings during their nesting season and how temperature may influence the physiological condition on the offspring. Here we employed biochemical indices based on nucleic acid derived indices (standardized RNA/DNA ratio-sRD, RNA concentration and DNA concentration) in skin tissue as a potential predictor of recent growth rate in nesting females and hatchling loggerhead turtles. Our major findings were that the physiological condition of all nesting females (sRD) decreased during the nesting season, but that females associated with neritic habitats had a higher physiological condition than females associated with oceanic habitats. In addition, the amount of time required for a hatchling to right itself was negatively correlated with its physiological condition (sRD) and shaded nests produced hatchlings with lower sRD. Overall, our results showed that nucleic acid concentrations and ratios of RNA to DNA are an important tool as potential biomarkers of recent growth in marine turtles. Hence, as biochemical indices of instantaneous growth are likely temperature-, size- and age-dependent, the utility and validation of these indices on marine turtles stocks deserves further study.

Práticas de preparação de uma tarefa de organização e tratamento de dados com características investigativas

Esta comunicação tem como objetivo discutir a preparação de uma tarefa de organização e tratamento de dados de características investigativas. Presta-se particular atenção aos aspetos valorizados pelos professores e os desafios com que se confrontam quando se envolvem neste tipo de trabalho. Trata-se de um estudo desenvolvido num contexto de trabalho de natureza colaborativa que segue uma metodologia de investigação interpretativa e qualitativa na modalidade de estudo de caso. Os resultados mostram que os professores valorizam tarefas de cunho investigativo, realizadas em contextos do quotidiano dos alunos, com recurso a dados reais recolhidos pelos próprios alunos, revelando a sua preocupação em construir tarefas com significado. Na preparação da tarefa, procuram antecipar possíveis resoluções dos alunos e prever modos de atuação para a sua condução, valorizando a apresentação de propostas por iniciativa dos alunos. Como principal desafio apontam o grau de incerteza com que são confrontados quando realizam este tipo de tarefas.

Die Darstellung der Apokalypse in den ersten Werken von Ernst Jünger

Dieser Aufsatz analysiert die Darstellung der apokalyptischen Bilder in zwei frühen Werken von Ernst Jünger mit dem Ziel, ihre Ähnlichkeiten und Unterschiede zu den biblischen Apokalypse-Darstellungen zu zeigen. Untersucht werden das Kriegstagebuch 1914/1918 Ernst Jüngers, ein bislang noch unveröffentlichtes Werk des Autors, und In Stahlgewitten, das aus einer literarischen Reinterpretation der Kriegserlebnisse Ernst Jüngers, die im Kriegstagebuch aufgezeichnet wurden, beruht. Alle direkten oder indirekten Erwähnungen der Apokalypse in den untersuchten Werken beziehen sich lediglich auf die Dimension der Zerstörung, da der Autor vor allem die psychische Stärke seines Helden, der in solchen apokalyptischen Szenarien einen ständigen und erfolgreichen Kampf gegen den Tod führte, hervorheben wollte.

Ernst Jünger und der mythos des "Neuen Menschen". Eine analyse des Frühwerks

Ernst Jünger und der mythos des "Neuen Menschen". Eine analyse des Frühwerks.

Formas de autorrepresentação e mutações contemporâneas da literacia

Desde 2008/ 2009 tenho lecionado a disciplina de licenciatura Autobiografia e Histórias de Vida no âmbito da qual pedi aos alunos que elaborassem um bilhete de identidade personalizado. Com este material pude desenvolver uma reflexão a partir do diálogo entre a forma por excelência de identificação pública em Portugal e o discurso identitário de jovens estudantes universitários. O processamento textual dos seus bilhetes de identidade revelou a estreita ligação com os suportes mediáticos que os enformam (na esmagadora maioria digitais) e com as práticas de literacia a eles associadas. Afinal de contas, estes estudantes vivem imersos num contexto de revolução digital em que as noções estabelecidas de literacia e os modos tradicionais de leitura e autorrepresentação estão a ser desafiados e até postos em causa.

On the assessment of time-shift variations from backscattered ultrasound for large temperature changes in biological phantoms

This work reports the assessment of time-shifts (TS) from backscattered ultrasound (BSU) signals when large temperature variations (up to 15 degrees C) were induced in a gel-based phantom. The results showed that during cooling temperature is linear with TS at a rate of approximately 74 ns/degrees C. However during a complete heating/cooling cycle, the relation is highly non-linear. This can be explained by the fact that during cooling the temperature distribution is more uniform. Another problem to report is that TS is very sensitive to external movements.

A scalable and open source linear positioning system controller

This paper is on the implementation of a dual axis positioning system controller. The system was designed to be used for space-dependent ultrasound signal acquisition problems, such as pressure field mapping. The work developed can be grouped in two main subjects: hardware and software. Each axis includes one stepper motor connected to a driver circuit, which is then connected to a processing unit. The graphical user interface is simple and clear for the user. The system resolution was computed as 127 mu m with an accuracy of 2.44 mu m. Although the target application is ultrasound signal acquisition, the controller can be applied to other devices that has up to four stepper motors. The application was developed as an open source software, thus it can be used or changed to fit different purposes.

Numerical techniques for modeling Doppler ultrasound spectra systems

Evaluation of blood-flow Doppler ultrasound spectral content is currently performed on clinical diagnosis. Since mean frequency and bandwidth spectral parameters are determinants on the quantification of stenotic degree, more precise estimators than the conventional Fourier transform should be seek. This paper summarizes studies led by the author in this field, as well as the strategies used to implement the methods in real-time. Regarding stationary and nonstationary characteristics of the blood-flow signal, different models were assessed. When autoregressive and autoregressive moving average models were compared with the traditional Fourier based methods in terms of their statistical performance while estimating both spectral parameters, the Modified Covariance model was identified by the cost/benefit criterion as the estimator presenting better performance. The performance of three time-frequency distributions and the Short Time Fourier Transform was also compared. The Choi-Williams distribution proved to be more accurate than the other methods. The identified spectral estimators were developed and optimized using high performance techniques. Homogeneous and heterogeneous architectures supporting multiple instruction multiple data parallel processing were essayed. Results obtained proved that real-time implementation of the blood-flow estimators is feasible, enhancing the usage of more complex spectral models on other ultrasonic systems.

On-line operation of an intelligent seismic detector

This study describes the on-line operation of a seismic detection system to act at the level of a seismic station providing similar role to that of a STA /LTA ratio-based detection algorithms. The intelligent detector is a Support Vector Machine (SVM), trained with data consisting of 2903 patterns extracted from records of the PVAQ station, one of the seismographic network's stations of the Institute of Meteorology of Portugal (IM). Records' spectral variations in time and characteristics were reflected in the SVM input patterns, as a set of values of power spectral density at selected frequencies. To ensure that all patterns of the sample data were within the range of variation of the training set, we used an algorithm to separate the universe of data by hyper-convex polyhedrons, determining in this manner a set of patterns that have a mandatory part of the training set. Additionally, an active learning strategy was conducted, by iteratively incorporating poorly classified cases in the training set. After having been trained, the proposed system was experimented in continuous operation for unseen (out of sample) data, and the SVM detector obtained 97.7% and 98.7% of sensitivity and selectivity, respectively. The same type of ANN presented 88.4 % and 99.4% of sensitivity and selectivity when applied to data of a different seismic station of IM. © 2013 Springer-Verlag Berlin Heidelberg.

A spectral estimator using parallel-processing for use in a doppler blood-flow instrument

The work described here is part of a research program aiming to increase the sensitivity to disease detection using Doppler ultrasound by reducing the effects to the measurement procedure on the estimation of blood velocity and detection of flow disturbance.