101 research outputs found

    Brief on algae biomass production

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    This brief on algae biomass production is one out of a series of briefs from the EC's Knowledge Centre for Bioeconomy which intend to provide independent evidence for EU policy in this field. The following are the key results: 1. Macroalgae are harvested from wild stocks or produced in aquaculture systems, while microalgae are cultivated in open (e.g. raceway ponds) or closed (photobioreactors) systems (see section 1). 2. Annual macroalgae biomass production has increased worldwide since 1950, reaching 32.67 Mt in 2016 (see section 2). Global production is mainly based on aquaculture cultivation (97% in 2016). 3. Algae biomass production in the EU contributed only 0.28% to global production in 2016, whilst production in Norway and Iceland contributed an additional 0.57% (see section 2). In contrast with the global production pattern, the harvesting of wild stocks supplies most of the macroalgae biomass in Europe (98% in 2016). 4. Production plants of algae biomass in the EU are located in 15 of the Member States, in most of which both macro- and microalgae production units operate. Although the harvesting of wild stocks is the main biomass production method for macroalgae in terms of volume, the number of aquaculture plants has increased in recent years and already represents an important part of the macroalgae production units in Europe (see section 3). 5. The abundance of several commercially exploited species in Europe has already decreased in some regions due to multiple stressors such as global warming, herbivory, excessive harvesting, a decline in water quality and the introduction of non-native species (see section 4). Therefore, it is necessary to ensure that algae resources are exploited in a sustainable way.JRC.D.1-Bio-econom

    Physico-chemical supporting elements in coastal waters: Links between Water and Marine Framework Directives and Regional Sea Conventions

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    A comparison between the information reported by Member States to WIISE on the standards for general physic chemical parameters, and the information available on the methodologies used to assess eutrophication in coastal waters, in accordance to MSFD and Regional Sea Conventions.JRC.D.2-Water and Marine Resource

    Biomass production, supply, uses and flows in the European Union: First results from an integrated assessment

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    The report delivers an assessment of EU biomass production, uses, flows and related environmental impacts for the sectors agriculture, forestry, fisheries and aquaculture, and algae. Quantitative estimates are derived from available data and current knowledge, yet highlighting the uncertainties and the remaining gaps. The work is framed within the JRC biomass study and is meant to support the EU bioeconomy and the related policies.JRC.D.1-Bio-econom

    Eutrophication in marine waters: harmonization of MSFD methodological standards at EU level

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    The Marine Strategy Framework Directive (MSFD) establishes the framework for the protection, conservation and sustainable use of the marine environment at the Union level. Because of its potential negative effects on the marine water quality, eutrophication is one of the criteria assessed under MSFD. This report presents the results of the joint work between JRC and a network of Member States (MS) eutrophication designated experts to assess the level of harmonization in Eutrophication methodological standards and threshold definition at regional and EU level. The information compiled at regional and national level showed that although methodologies are defined already for all the criteria, the degree of harmonization of methodological approaches across MS and regions is in some cases very low. In addition further developments are needed for some regions to agree on common indicators and threshold values. Based on these results the report highlights existing gaps and proposes recommendations to improve the eutrophication assessment framework at EU level.JRC.D.2-Water and Marine Resource

    Hemofilia adquirida A e B principais apresentações clínicas da doença de Pott em crianças: Hemofilia adquirida A e B main clinical presentations of Pott disease in children

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    A hemofilia é uma doença sanguínea caracterizada por distúrbios nos mecanismos de coagulação do sangue, podendo ser de origem hereditária ou adquirida. A hemofilia adquirida ocorre devido à produção de autoanticorpos contra a atividade pró-coagulante dos fatores VIII (Hemofilia A) e IX (Hemofilia B). O objetivo desse trabalho é a realização de um estudo observacional e exploratório sobre os artigos publicados nos últimos 5 anos sobre a hemofilia adquirida A e B, uma vez que é uma enfermidade considerada rara. Dos 68 resultados obtidos na pesquisa, apenas 7 abordaram de forma objetiva sobre o tema, sendo utilizados na confecção do estudo. Segundo a literatura, as manifestações clínicas envolvem sangramento mucocutâneo, urogenital e gastrointestinal, e são mais prevalentes em idosos. Em crianças, o sangramento pode ser menos expressivo, provocando dúvidas quanto ao diagnóstico. O tratamento da hemofilia envolve a reposição dos fatores de coagulação deficientes e o uso de imunossupressores, ainda que nas obras analisadas apenas o tratamento hemostático tenha sido descrito, revelando uma carência de estudos sobre o uso de imunossupressores nos casos de hemofilia adquirida

    Incidência da síndrome pré-menstrual na prática de esportes: aspectos atuais: Incidence of pre-menstrual syndrome in sports: current aspects

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    A síndrome pré-menstrual (SPM) é uma constelação complexa de alterações de humor, comportamentais e físicas que se limitam à fase pré-menstrual. Esses sintomas se recuperam dentro de alguns dias após o início da menstruação.  Assim, o objetivo desse estudo é demonstrar a incidência da síndrome pré-menstrual na prática de esportes a partir de uma revisão integrativa sobre o tema. Para isso, foi realizado uma revisão integrativa sobre o tema, onde foi considerado textos publicados desde 2010, em inglês e português e que estejam disponíveis para leitura, no PUBMED, LILACs e Scielo. Esta revisão sistemática fornece algum suporte adicional para diretrizes clínicas que recomendam o exercício como um tratamento eficaz para a TPM. As análises secundárias realizadas também fornecem novas evidências de que o exercício pode ser útil no alívio de sintomas psicológicos, físicos e comportamentais específicos associados à TPM, além de auxiliar no gerenciamento do perfil global de sintomas

    Educomunicação, Transformação Social e Desenvolvimento Sustentável

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    Esta publicação apresenta os principais trabalhos dos GTs do II Congresso Internacional de Comunicação e Educação nos temas Transformação social, com os artigos que abordam principalmente Educomunicação e/ou Mídia-Educação, no contexto de políticas de diversidade, inclusão e equidade; e, em Desenvolvimento Sustentável os artigos que abordam os avanços da relação comunicação/educação no contexto da educação ambiental e desenvolvimento sustentável

    Forward-central two-particle correlations in p-Pb collisions at root s(NN)=5.02 TeV

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    Two-particle angular correlations between trigger particles in the forward pseudorapidity range (2.5 2GeV/c. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B. V.Peer reviewe

    Event-shape engineering for inclusive spectra and elliptic flow in Pb-Pb collisions at root(NN)-N-S=2.76 TeV

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    Elliptic flow of muons from heavy-flavour hadron decays at forward rapidity in Pb-Pb collisions at root s(NN)=2.76TeV

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    The elliptic flow, v(2), of muons from heavy-flavour hadron decays at forward rapidity (2.5 <y <4) is measured in Pb-Pb collisions at root s(NN)= 2.76TeVwith the ALICE detector at the LHC. The scalar product, two- and four-particle Q cumulants and Lee-Yang zeros methods are used. The dependence of the v(2) of muons from heavy-flavour hadron decays on the collision centrality, in the range 0-40%, and on transverse momentum, p(T), is studied in the interval 3 <p(T)<10 GeV/c. A positive v(2) is observed with the scalar product and two-particle Q cumulants in semi-central collisions (10-20% and 20-40% centrality classes) for the p(T) interval from 3 to about 5GeV/c with a significance larger than 3 sigma, based on the combination of statistical and systematic uncertainties. The v(2) magnitude tends to decrease towards more central collisions and with increasing pT. It becomes compatible with zero in the interval 6 <p(T)<10 GeV/c. The results are compared to models describing the interaction of heavy quarks and open heavy-flavour hadrons with the high-density medium formed in high-energy heavy-ion collisions. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V.Peer reviewe
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