As zonas costeiras portuguesas e a actividade humana

No artigo são descritos os principais ecossistemas costeiros portugueses: praias rochosas, praias arenosas, estuários, sistemas lagunares, sapais, dunas e as principais ameaças a que estão sujeitos. São apresentados alguns mecanismos para a sua protecção, como os Planos de Ordenamento da Orla Costeira (POOC), planos de Bacia, criação de reservas marinhas e costeiras, fiscalização das pescas e ambiental, gestão integrada dos estuários. Ao mesmo tempo são referidas as principais dificuldades na aplicação destas medidas

Characterization of Cre recombinase activity for in vivo targeting of adipocyte precursor cells.

The increased incidence of obesity and metabolic disease underscores the importance of elucidating the biology of adipose tissue development. The recent discovery of cell surface markers for prospective identification of adipose precursor cells (APCs) in vivo will greatly facilitate these studies, yet tools for specifically targeting these cells in vivo have not been identified. Here, we survey three transgenic mouse lines, Fabp4-Cre, PdgfRα-Cre, and Prx1-Cre, precisely assessing Cre-mediated recombination in adipose stromal populations and mature tissues. Our data provide key insights into the utility of these tools to modulate gene expression in adipose tissues. In particular, Fabp4-Cre is not effective to target APCs, nor is its activity restricted to these cells. PdgfRα-Cre directs recombination in the vast majority of APCs, but also targets other populations. In contrast, adipose expression of Prx1-Cre is chiefly limited to subcutaneous inguinal APCs, which will be valuable for dissection of APC functions among adipose depots

Especialização a distância para professores de matemática: um projeto SEEDUC/CECIERJ/UFF

Neste trabalho analisamos os desdobramentos e impactos do curso de especialização para a qualificação dos professores que ensinam matemática da Secretaria de Educação do Estado do Rio de Janeiro, Brasil, na modalidade a distancia. O foco das análises incide sobre a formação em serviço e a implantação do curso, como política pública do governo estadual, visando melhorar a qualidade do ensino de matemática e dos professores. Na análise dos dados fica evidente que os professores buscam a formação continuada por necessidade de qualificação profissional, melhoria da prática docente e do processo de ensino e de aprendizagem, por meio da utilização de recursos tecnológicos, foco do curso, como nova forma de ensinar e de aprender. Desse modo, os resultados apontam que o curso proporciona repensar a prática docente, dinamizando-a, e contextualizar conteúdos de matemática na cultura do aluno, enriquecendo e contribuindo para a melhoria da educação no Estado

Adoption of the Guidelines for Higher Education Libraries in Portugal: contributions to assessment

Three years after the publication and large-scale dissemination of the guideline document "Recommendations for Higher Education Libraries", we seek to understand the extent to which this document has been adopted by librarians and how practices and experiences have been introduced in Portuguese higher education libraries. This paper aims to assess the application of the Recommendations on user training, particularly in information literacy; in digital content management, including data and scientific production; and in the direct support to students, teachers and researchers, not forgetting topics of space management and information resources as a whole. For this purpose, a questionnaire survey was used for higher education libraries in Portugal. The most implemented areas are information literacy and the management of institutional repositories, and support for editorial projects was the one with the lowest level of application.info:eu-repo/semantics/publishedVersio

GRASS UTILIZATION IN GROWING FINISHING BÍSARO PIGS (85-107 KG). PERFORMANCE AND CARCASS COMPOSITION

The use of different quantities of vegetables, forages or fresh grass as fodder for growing-finishing pigs is an important factor of the northern Portugal traditional system. The increasing development of swine production in outdoor systems, extensive and organic production, turns to upcoming natural diets, in which grass performs a significant part. With regard to this, some investigation has been made concerning the use of fibre-rich feed ingredients in pig nutrition. Metabolic effects of its ingestion are analysed concerning different sights (economical, social, environmental and physiological ones). The aim of this work was to study the effects of grass utilization in the diets on performances of finishing Bísaro pigs. A total of 22 pigs (16 castrated males and 6 females) was housed outdoor and fed ad libitum (37 – 85 kg live weight) with a growing diet and then transferred to an indoor system (with free access to an outdoor area) for 49 days, according to 3 different treatments: 100% concentrate (C), 75% concentrate + ad libitum grass (CE75), 50% concentrate + ad libitum grass (CE50). The grass was supplied and its intake registered on a daily basis. Every 14 days, the pigs were weighted and their back fat (P2 in vivo) measured. After slaughter (average weight of 107 kg LW), yield and ½ left carcass characteristics were controlled. During the outdoor growing phase, the ADG was 513 g/day. During the indoor finishing phase, the increase grass intake was proportional to the reduction of concentrate in the diet. The ADG (g) and the fat deposition (P2 cm) were significantly different (P<0,05) in the 3 treatments (ADG: C=641, CE75=467, CE50=356 and: C=11,4, CE75=+9,5, CE50=+6,2). The empty body weight (kg) was also proportional to the intake of concentrate (C=116,2; CE75=107,7; CE50=102,2). Comparatively to the weight of the body parts, pigs that had higher intake of grass and lower of concentrate showed a higher % of shoulder (P<0,05; C=20,4, CE75=21,7, CE50=22,2) and the pH45min of CE carcasses was significantly higher (P<0,05). As a conclusion, concentrate substitution for grass showed a slower growing rate, thinner carcasses and a high technological quality. Neverthelles variability (CV %) of the productive parameters at the end of this study were higher in the treatments that included grass: live weight (C= 10,5%; C75=10,7%; C50=14,3%), finishing ADG (C=24%; C75=37%, C50=42%), and final fat (C=37%; C75=32%, C50=52%). These values suggest that the utilization of fibrous feeds in growing-finishing swine may be one of the possible explanations of the more heterogeneous products and carcasses found in the traditional or extensive systems, common users of fibrous feeds in the carcass finishing phase

Diferenciación morfológica y genética del pejesapo (Halobatrachus didactylus) entre estudarios y áreas costeras del Portugal

The Lusitanian toadfish, Halobatrachus didactylus (Bloch and Schneider, 1801), is distributed from the Ghana coast to the Iberian Peninsula, being particularly abundant on the south coast of Portugal. The differentiation of this species along the Portuguese coast was assessed through the analysis of 10 samples, considering morphological characters (20 morphometric and 16 meristic) and genetic markers (10 allozymes, 11 loci). Southern samples included estuaries and their adjacent coastal areas, given that this species inhabits both environments, whereas western samples only comprised estuaries. Morphometric and meristic data discriminant analysis evidenced some differentiation between estuarine and coastal populations. This was not entirely corroborated by the genetic analysis, which showed an overall pattern of low FST (0.042) and Nei’s genetic distance, even between geographically distant areas. However, higher values of these parameters were found between estuaries of the south coast and their adjacent coastal areas, suggesting that estuarine systems play a major role in such differentiation. Results are discussed regarding toadfish life-history pattern and Portuguese coast geomorphology, giving an insight into the biological and environmental factors influencing population sub-structuring.El pejesapo, Halobatrachus didactylus (Bloch y Schneider, 1801), está distribuido desde la costa de Ghana hasta la Península Ibérica, siendo particularmente abundante en la costa sur portuguesa. La diferenciación de esta especie a lo largo de la costa Portuguesa se ha evaluado a través del análisis de diez muestras, considerando caracteres morfológicos (20 características morfométricas y 16 merísticas) y genéticos (10 aloenzimas, 11 loci). Hacia el sur, las muestras incluyen estuarios y sus áreas costeras adyacentes, ya que esta especie habita ambos ambientes, mientras que las muestras del oeste están relacionadas sólo a estuarios. El análisis discriminante de los datos morfométricos y merísticos evidenciaron diferenciación entre poblaciones de estuarios y costeras, lo cual no fue enteramente corroborado por el análisis genético, el cual mostró un patrón general de bajo FST (0.042) y distancia genética de Nei, incluyendo áreas geográficamente distantes. Sin embargo, valores más altos de estos parámetros fueron encontrados entre estuarios de la costa sur y sus áreas costeras adyacentes, sugiriendo que los sistemas de estuarios juegan un papel importante en tal diferenciación. Los resultados son discutidos considerando los patrones de historia de vida del pejesapo y la geomorfología de la costa portuguesa, dando una perspectiva de cómo los procesos biológicos y factores ambientales influyen la sub- estructuración poblacional.

Construção de um instrumento para medida de satisfação no trabalho

O objetivo deste trabalho é a construção de um instrumento para medida da motivação no trabalho. A inspiração teórica para este empreendimento baseou-se, principalmente, nos conceitos de motivação de Maslow (1954), tendo em vista a grande aceitação desta teoria, tanto por parte de psicólogos organizacionais, como de administradores preocupados com o fator humano da empresa. Além disso, cabe ainda assinalar a inexistência de instrumentos de medida de motivação validados para o uso no Brasil

Evidence of mental health in university students: a contribution to literacy

The data on the mental health of young people, in the current scientific evidence, point to the need for a constant updating of perspectives in relation to the contexts in which it is inserted, aiming at a more targeted intervention and its empowerment. In this context, it was described in the study: "Consumption of psychoactive substances in university students... What reality?" as one of the objectives- Identify the level of psychological health (depression, anxiety, and stress) of students at the Instituto Politécnico de Bragança. A quantitative, descriptive, correlational, and cross-sectional study was carried out. A (non-probabilistic) sample of 392 students was used. The assessment of the students' psychological health was carried out using the Anxiety, Depression, and Stress Scale (EADS21) by Lovibond and Lovibond, adapted by Pais Ribeiro in 2004. SPSS was used to process the data using descriptive statistics and inferential with a significance level of 95%. As a result, we have that: about 25% of students show above-normal levels of intensity in the depression and stress dimensions, reaching almost one-third in the anxiety dimension. The correlations between the EADS21 dimensions were moderate to strong.info:eu-repo/semantics/publishedVersio