Encontrados 24 documentos, a visualizar página 1 de 3

A comprehensive assessment of the transcriptome of cork oak (Quercus suber) thr...

Background: Cork oak (Quercus suber) is one of the rare trees with the ability to produce cork, a material widely used to make wine bottle stoppers, flooring and insulation materials, among many other uses. The molecular mechanisms of cork formation are still poorly understood, in great part due to the difficulty in studying a species with a long life-cycle and for which there is scarce molecular/genomic inform...

Recentrocidade. Memória e refundação urbana : Território. Cidade. Arquitetura

Influence of wearing an unstable shoe on thigh and leg muscle activity and veno...

Purpose: To quantify the effect of unstable shoe wearing on muscle activity and haemodynamic response during standing. Methods: Thirty volunteers were divided into 2 groups: the experimental group wore an unstable shoe for 8 weeks, while the control group used a conventional shoe for the same period. Muscle activity of the medial gastrocnemius, tibialis anterior, rectus femoris and biceps femoris and venous cir...

Comportamentos Alimentares dos Alunos do 4º ano de Enfermagem da Universidade F...

Trabalho apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Licenciado em Enfermagem ; Nos últimos anos, a prática de enfermagem é cada vez mais alvo de reflexão e investigação, na busca de melhorar a qualidade dos cuidados prestados. Nas últimas décadas, tem-se notado muitas alterações nos hábitos alimentares das gerações. Hoje em dia, devido ao ritmo de vida sabe-se...

Efeito do novo acordo de capital de Basileia II nas Pequenas e Médias Empresas

Dissertação de Mestrado em Gestão de Empresas (MBA). ; Este estudo procura avaliar o impacto do Novo Acordo de Capital de Basileia II nos montantes de credito concedidos pelos bancos as Pequenas e Medias Empresas (PME's), bem como definir os novos determinantes do risco de credito a luz do Novo Acordo. O estudo utiliza dados de empresas portuguesas, obtidos através da Central de Balancos do Banco de Portugal, ...

Time-domain optimization of amplifiers based on distributed genetic algorithms

Thesis presented in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the subject of Electrical and Computer Engineering ; The work presented in this thesis addresses the task of circuit optimization, helping the designer facing the high performance and high efficiency circuits demands of the market and technology evolution. A novel framework is introduced, based on time-domain ...

Diversity and fruiting pattern of macrofungi associated with chestnut tree (Cas...

The chestnut (Castanea sativa) agro-ecosystem is of great social, economic and landscape importance in NE Portugal. There are multiple resources associated with this crop, among them fruit and wood production and mushroom harvesting. However, information about the diversity and ecology of macrofungi is very scarce. In this context, the aim of this study was to assess the macrofungal diversity associated with ch...

Interaction between Hypholoma fasciculare and the ectomycorrhizal fungus Pisoli...

In the past few years, cord-forming basidiomycetes have received considerable attention in their growth strategies in the presence of other fungi (saprotrophic and pathogenic). In the present study, the in vitro interaction between the cord-forming basidiomycete Hypholoma fasciculare and the ectomycorrhizal fungus Pisolithus tinctorius was studied. Dual-cultures were established and the radial fungal growth, hy...

Involvement of reactive oxygen species during early stages of ectomycorrhiza es...

Evidence for the participation of reactive oxygen species (ROS) and antioxidant systems in ectomycorrhizal(ECM) establishment is lacking. In this paper, we evaluated ROS production and the activities of superoxide dismutase (SOD) and catalase (CAT) during the early contact of the ECM fungus Pisolithus tinctorius with the roots of Castanea sativa (chestnut tree). Roots were placed in contact with P. tinctorius m...

Macrofungi associated with sweet chestnut: a source of income for rural populat...

European chestnut tree (Castanea sativa Mill.) has a great economic interest for wood and fruit production in northeast of Portugal. Over the last decade another important income associated with this culture has emerged - the collection and commercialization of wild edible mushrooms growing in chestnut orchards. Actually, despite the low knowledge of their biodiversity, ecology or sustainable management in thos...