4 research outputs found

    Projecto de um sistema de rega para uma exploração agrícola na Beira Gomes

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    Trabalho de Projecto de Natureza Científica para obtenção do grau de Mestre em Engenharia CivilEste projecto consistiu no dimensionamento de um modelo estático de uma rede de rega de um prado de 27 ha de cultura consociada de trevo branco (Trifolium repens L.) e festuca alta (Festuca arundinácea Schreb), a instalar numa exploração agrícola no distrito de Castelo Branco, concelho de Idanha-a-Nova. A metodologia seguida para o dimensionamento da rede assentou na caracterização dos consumos através do balanço hídrico do solo e das necessidades hídricas da cultura, usando o modelo matemático ISAREG. Este modelo baseia-se no procedimento aconselhado pela FAO (Food and Agriculture Organization), em que a definição da estrutura física da rede de rega é feita em função dos principais componentes do sistema (e.g. bombas, tubagens e válvulas) e do estabelecimento de regras de operação que garantam o correcto funcionamento da instalação. O terreno foi dividido em 8 sectores e optou-se pela rega por aspersão, com uma dotação de 25 mm, com intervalo entre regas de 4 dias. Assim, serão regados diariamente 2 sectores, com a duração de 4 h cada rega. Os aspersores foram dispostos em quadrado e a estação de bombagem foi colocada a cota mais elevada (220,5 m).Abstract: This project consists of the sizing of a static model of an irrigation network to be used to water 27 ha grazing pasture of white clover (Trifolium repens L.) and tall fescue (Festuca arundinácea Schreb), to be installed in a farm in the centre-interior of Portugal (Castelo Branco; Idanha-a-Nova). The methodology followed for sizing the irrigation network was based on the characterization of water consumption, calculated by a soil water balance considering the water needs for the crop, and using the mathematic model ISAREG. This model is based on the procedure dictated by FAO (Food and Agriculture Organization), where the definition of the physical structure of the irrigation network is made according to the principal components of the system (e.g. pumps, pipes and valves) and the establishment of operating rules to ensure the correct operation of the installation. The land was divided into 8 sectors. Sprinkler irrigation of 25 mm with the time interval between successive irrigation of four days was selected. Therefore, two sectors will be irrigated daily, for 4 h each irrigation. Square patterned sprinklers were chosen and the pumping station was located at the highest elevation (220.5 m)

    The European Reference Genome Atlas: piloting a decentralised approach to equitable biodiversity genomics.

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    ABSTRACT: A global genome database of all of Earth’s species diversity could be a treasure trove of scientific discoveries. However, regardless of the major advances in genome sequencing technologies, only a tiny fraction of species have genomic information available. To contribute to a more complete planetary genomic database, scientists and institutions across the world have united under the Earth BioGenome Project (EBP), which plans to sequence and assemble high-quality reference genomes for all ∼1.5 million recognized eukaryotic species through a stepwise phased approach. As the initiative transitions into Phase II, where 150,000 species are to be sequenced in just four years, worldwide participation in the project will be fundamental to success. As the European node of the EBP, the European Reference Genome Atlas (ERGA) seeks to implement a new decentralised, accessible, equitable and inclusive model for producing high-quality reference genomes, which will inform EBP as it scales. To embark on this mission, ERGA launched a Pilot Project to establish a network across Europe to develop and test the first infrastructure of its kind for the coordinated and distributed reference genome production on 98 European eukaryotic species from sample providers across 33 European countries. Here we outline the process and challenges faced during the development of a pilot infrastructure for the production of reference genome resources, and explore the effectiveness of this approach in terms of high-quality reference genome production, considering also equity and inclusion. The outcomes and lessons learned during this pilot provide a solid foundation for ERGA while offering key learnings to other transnational and national genomic resource projects.info:eu-repo/semantics/publishedVersio

    Characterisation of microbial attack on archaeological bone

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    As part of an EU funded project to investigate the factors influencing bone preservation in the archaeological record, more than 250 bones from 41 archaeological sites in five countries spanning four climatic regions were studied for diagenetic alteration. Sites were selected to cover a range of environmental conditions and archaeological contexts. Microscopic and physical (mercury intrusion porosimetry) analyses of these bones revealed that the majority (68%) had suffered microbial attack. Furthermore, significant differences were found between animal and human bone in both the state of preservation and the type of microbial attack present. These differences in preservation might result from differences in early taphonomy of the bones. © 2003 Elsevier Science Ltd. All rights reserved

    The European Reference Genome Atlas: piloting a decentralised approach to equitable biodiversity genomics

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    A global genome database of all of Earth’s species diversity could be a treasure trove of scientific discoveries. However, regardless of the major advances in genome sequencing technologies, only a tiny fraction of species have genomic information available. To contribute to a more complete planetary genomic database, scientists and institutions across the world have united under the Earth BioGenome Project (EBP), which plans to sequence and assemble high-quality reference genomes for all ∼1.5 million recognized eukaryotic species through a stepwise phased approach. As the initiative transitions into Phase II, where 150,000 species are to be sequenced in just four years, worldwide participation in the project will be fundamental to success. As the European node of the EBP, the European Reference Genome Atlas (ERGA) seeks to implement a new decentralised, accessible, equitable and inclusive model for producing high-quality reference genomes, which will inform EBP as it scales. To embark on this mission, ERGA launched a Pilot Project to establish a network across Europe to develop and test the first infrastructure of its kind for the coordinated and distributed reference genome production on 98 European eukaryotic species from sample providers across 33 European countries. Here we outline the process and challenges faced during the development of a pilot infrastructure for the production of reference genome resources, and explore the effectiveness of this approach in terms of high-quality reference genome production, considering also equity and inclusion. The outcomes and lessons learned during this pilot provide a solid foundation for ERGA while offering key learnings to other transnational and national genomic resource projects
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