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| Registros recuperados: 7.979 | |
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| Dittami, Simon M; Arboleda, Enrique; Auguet, Jean-christophe; Bigalke, Arite; Briand, Enora; Cardenas, Paco; Cardini, Ulisse; Decelle, Johan; Engelen, Aschwin; Eveillard, Damien; Gachon, Claire Mm; Griffiths, Sarah; Harder, Tilmann; Kayal, Ehsan; Kazamia, Elena; Lallier, François H; Media, Monica; Marzinelli, Ezequiel M; Morganti, Teresa; Nunez Pons, Laura; Prado, Soizik; Pintado, José; Saha, Mahasweta; Selosse, Marc-andré; Skillings, Derek; Stock, Willem; Sunagawa, Shinichi; Toulza, Eve; Vorobev, Alexey; Leblanc, Catherine; Not, Fabrice. |
| Host-microbe interactions play crucial roles in marine ecosystems, but we still have very little understanding of the mechanisms that govern these relationships, the evolutionary processes that shape them, and their ecological consequences. The holobiont concept is a renewed paradigm in biology that can help describe and understand these complex systems. It posits that a host and its associated microbiota, living together in a long-lasting relationship, form the holobiont, and have to be studied together, as a coherent biological and functional unit, in order to understand the biology, ecology and evolution of the organisms. Here we discuss critical concepts and opportunities in marine holobiont research and identify key challenges in the field. We... |
| Tipo: Text |
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| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00480/59209/61904.pdf |
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| Gregor, Luke; Lebehot, Alice D.; Kok, Schalk; Monteiro, Pedro M. Scheel. |
| Over the last decade, advanced statistical inference and machine learning have been used to fill the gaps in sparse surface ocean CO2 measurements (Rodenbeck et al., 2015). The estimates from these methods have been used to constrain seasonal, interannual and decadal variability in sea-air CO2 fluxes and the drivers of these changes (Landschutzer et al., 2015, 2016; Gregor et al., 2018). However, it is also becoming clear that these methods are converging towards a common bias and root mean square error (RMSE) boundary: "the wall", which suggests that pCO(2) estimates are now limited by both data gaps and scale-sensitive observations. Here, we analyse this problem by introducing a new gap-filling method, an ensemble average of six machine-learning models... |
| Tipo: Text |
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| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00676/78797/81035.pdf |
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| Valente, Andre; Sathyendranath, Shubha; Brotas, Vanda; Groom, Steve; Grant, Michael; Taberner, Malcolm; Antoine, David; Arnone, Robert; Balch, William M.; Barker, Kathryn; Barlow, Ray; Belanger, Simon; Berthon, Jean-francois; Besiktepe, Suikru; Borsheim, Yngve; Bracher, Astrid; Brando, Vittorio; Canuti, Elisabetta; Chavez, Francisco; Cianca, Andres; Claustre, Herve; Clementson, Lesley; Crout, Richard; Frouin, Robert; Garcia-soto, Carlos; Gibb, Stuart W.; Gould, Richard; Hooker, Stanford B.; Kahru, Mati; Kampel, Milton; Klein, Holger; Kratzer, Susanne; Kudela, Raphael; Ledesma, Jesus; Loisel, Hubert; Matrai, Patricia; Mckee, David; Mitchell, Brian G.; Moisan, Tiffany; Muller-karger, Frank; O'Dowd, Leonie; Ondrusek, Michael; Platt, Trevor; Poulton, Alex J.; Repecaud, Michel; Schroeder, Thomas; Smythe, Timothy; Smythe-wright, Denise; Sosik, Heidi M.; Twardowski, Michael; Vellucci, Vincenzo; Voss, Kenneth; Werdell, Jeremy; Wernand, Marcel; Wright, Simon; Zibordi, Giuseppe. |
| A global compilation of in situ data is useful to evaluate the quality of ocean-colour satellite data records. Here we describe the data compiled for the validation of the ocean-colour products from the ESA Ocean Colour Climate Change Initiative (OC-CCI). The data were acquired from several sources (including, inter alia, MOBY, BOUSSOLE, AERONET-OC, SeaBASS, NOMAD, MERMAID, AMT, ICES, HOT and GeP&CO) and span the period from 1997 to 2018. Observations of the following variables were compiled: spectral remote-sensing reflectances, concentrations of chlorophyll a, spectral inherent optical properties, spectral diffuse attenuation coefficients and total suspended matter. The data were from multi-project archives acquired via open internet services or from... |
| Tipo: Text |
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| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00508/61937/66031.pdf |
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| Gurski,Erico; Moraes,Fillipe Alexandre; Fritzen,Paulo Cícero; Benedito,Raphael Augusto de Souza. |
| Abstract In Brazil, the demand for the acquisition and installation of photovoltaic systems has grown exponentially and, with that, the importance of studies considering their effects on the distribution grids power flow also grows. Due to the intermittent nature of photovoltaic generation, it is important to approach the analysis in a discrete way, taking into account the changes in the power injections during the studied period. Thus, this article presents the daily analysis of the effects of photovoltaic generation on the distribution system through the computational implementation of a discretized power flow routine. The implemented routine can also analyze the effects of other distributed generations on distribution grids, whether those grids are... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Distributed Generation; Power Flow; Photovoltaic Systems. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000200207 |
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| Carlesse,Fabianne; Daudt,Liane Esteves; Seber,Adriana; Dutra,Álvaro Pimenta; Melo,Analy Salles de Azevedo; Simões,Belinda; Macedo,Carla Renata Donato; Bonfim,Carmem; Benites,Eliana; Gregianin,Lauro; Batista,Marjorie Vieira; Abramczyk,Marcelo; Tostes,Vivian; Lederman,Henrique Manoel; Lee,Maria Lúcia de Martino; Loggetto,Sandra; Castro Junior,Cláudio Galvão de; Colombo,Arnaldo Lopes. |
| ABSTRACT In the present paper we summarize the suggestions of a multidisciplinary group including experts in pediatric oncology and infectious diseases who reviewed the medical literature to elaborate a consensus document (CD) for the diagnosis and clinical management of invasive fungal diseases (IFDs) in children with hematologic cancer and those who underwent hematopoietic stem-cell transplantation. All major multicenter studies designed to characterize the epidemiology of IFDs in children with cancer, as well as all randomized clinical trials addressing empirical and targeted antifungal therapy were reviewed. In the absence of randomized clinical trials, the best evidence available to support the recommendations were selected. Algorithms for early... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fungal infections; Children; Cancer. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702019000600395 |
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| FIGUEIREDO, R. de O.; GREEN, T. R.. |
| Resumo: Esta publicação aborda a complexidade e os desafios para que se alcance a sustentabilidade no uso da terra, no tocante à conservação dos recursos hídricos e respectivas bacias hidrográficas. Trata da dinâmica de alterações nos processos biogeoquímicos e hidrológicos presentes nas bacias onde o ecossistema natural é modificado. Considera, também, as variações temporais e espaciais distintas, dependendo das características biofísicas e biogeoquímicas originais da bacia, ao lado do uso da terra presente. Os autores abordam como e porque a bacia hidrográfica deve ser considerada a unidade de estudo primordial nas análises ambientais que visam a conservação de recursos hídricos. São, assim, considerados os processos naturais, o manejo agropecuário, a... |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Sustentabilidade ambiental; Bacia Hidrográfica; Uso da Terra; Qualidade da Água; Agricultural watersheds; Watersheds; Land use; Land use change; Water quality. |
| Ano: 2019 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1112886 |
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| Kaufmann, Marielen Priscila; Pasqualotto, Nayara; Sena, Mauricio Machado. |
| Primando, sobretudo, pela valorização dos conhecimentos dos agricultores como um aspecto primordial no estudo e compreensão da dinâmica dos agroecossistemas, este artigo apresenta a experiência da utilização da metodologia Campesino a campesino (CAC), para promover a construção do conhecimento agroecológico entre os agricultores ecologistas do Território Central do Rio Grande do Sul. Sob este enfoque, realizaram-se seis oficinas sobre temas recorrentes na produção ecológica de alimentos, tais como a fruticultura, horticultura e pecuária leiteira ao longo do ano de 2015. Ademais, o artigo objetiva analisar as potencialidades e fragilidades do emprego desta ferramenta metodológica no contexto sul-riograndense. Os resultados desta experiência nos indicam que... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agroecologia; Campesino a campesino; Extensão rural agroecológica; Troca de experiências. |
| Ano: 2019 |
URL: http://periodicos.ufsm.br/extensaorural/article/view/39859 |
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| Sèbe, Maxime; Kontovas, Christos, A.; Pendleton, Linwood. |
| Ship strikes are one of the main human-induced threats to whale survival. A variety of measures have been used or proposed to reduce collisions and subsequent mortality of whales. These include operational measures, such as mandatory speed reduction, or technical ones, such as detection tools. There is, however, a lack of a systematic approach to assessing the various measures that can mitigate the risk of ship collisions with whales. In this paper, a holistic approach is proposed to evaluate mitigation measures based on a risk assessment framework that has been adopted by the International Maritime Organization (IMO), namely the Formal Safety Assessment (FSA). Formal Safety Assessment (FSA) is “a rational and systematic process for assessing the risk... |
| Tipo: Text |
Palavras-chave: Whale; Collision; Ship strikes; Risk assessment; Cost-effectiveness. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00588/69982/67892.pdf |
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| Gobillot, Nicolas; Lesire, Charles; Doose, David. |
| The integration of autonomous robots in real applications is a challenge. It needs that the behaviour of these robots is proved to be safe. In this paper, we focus on the real-time software embedded on the robot, and that supports the execution of safe and autonomous behaviours. We propose a methodology that goes from the design of component-based software architectures using a Domain Specific Language, to the analysis of the real-time constraints that arise when considering the safety of software applications. This methodology is supported by a code generation toolchain that ensures that the code eventually executed on the robot is consistent with the analysis performed. This methodology is applied on a ground robot exploring an area. Categories (2), (3) |
| Tipo: Text |
Palavras-chave: Robotics software; Real-time analysis; Modelling language. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00473/58430/65964.pdf |
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| Hersen,Amarildo; Hoeflich,Vitor Afonso; Lima,Jandir Ferrera de. |
| Resumo O objetivo deste artigo é analisar o comportamento das exportações de produtos madeireiros do setor florestal após a desvalorização cambial, a partir de 2012. O método de avaliação de impacto foi o de diferença em diferenças (DD). Os resultados apontam que, apesar de as exportações representarem, em média, volume menor que a comercialização doméstica, elas tiveram variação absoluta mais expressiva com a desvalorização da moeda brasileira, a partir de 2012. A expressiva queda do real frente ao dólar possibilitou uma trajetória do volume de produtos madeireiros exportados mais positiva que na hipótese de sua inexistência. Contudo, políticas públicas de inclusão do pequeno produtor e empresários do setor madeireiro poderiam ter possibilitado resultados... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Setor florestal; Política pública; Política cambial. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-20032019000300368 |
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| Patiño,Paula Andrea González; Álvarez,Gloria Edith Guerrero; Valencia,Liliana Isaza. |
| ABSTRACT: Rubus glaucus Benth, commonly referred to as mora de Castilla, is affected by Colletotrichum acutatum, as it induces anthracnose in many of the plant organs. Generally, it affects the fruits during the post-harvest phase and damages them, causing economic losses due to the poor crop quality. At present, no standardized methods are available for this pathosystem that can be used to characterize quantitatively the epidemic and to permit the prediction and comparison of the disease management techniques. In this research, we proposed a logarithmic diagrammatic scale of the severity of anthracnose induced by C. acutatum in the fruits of the thornless variety of R. glaucus Benth. This scale is constructed on the adjustment of the Weber-Fechner law... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Colletotrichum acutatum; Epidemiology; Pathometry; Phytopathometry; Rubus glaucus Benth. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000400150 |
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| Silva, João Paulo Nascimento da; Oliveira, Cledison Carlos de; Garcia, André Spuri. |
| O agronegócio se apresenta como importante fator para economia brasileira e global, sendo assim, este fenômeno se mostra importante para aprofundamento das pesquisas acadêmicas por parte de seu desenvolvimento como modelo de negócios. Através desta pesquisa bibliométrica é possível aprofundar sobre o desenvolvimento deste fenômeno na academia, que, conforme apontam os dados, tem se mostrado de grande interesse para economias como a Brasil e EUA, e que as pesquisas sobre esta temática caminham próximo ao pensamento da economia destes países, conforme apontado pelo apoio dado as fontes de fomento. Dessa forma, este estudo apresenta o fenômeno crescente na economia global, através da pesquisa via Web of Science, e que acompanha o mesmo como desenvolvimento... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Comportamento da academia; Economia; Produção.. |
| Ano: 2019 |
URL: http://periodicos.ufsm.br/extensaorural/article/view/32131 |
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| Delrieu-trottin, Erwan; Williams, Jeffrey T.; Pitassy, Diane; Driskell, Amy; Hubert, Nicolas; Viviani, Jeremie; Cribb, Thomas H.; Espiau, Benoit; Galzin, Rene; Kulbicki, Michel; De Loma, Thierry Lison; Meyer, Christopher; Mourier, Johann; Mou-tham, Gerard; Parravicini, Valeriano; Plantard, Patrick; Sasal, Pierre; Siu, Gilles; Tolou, Nathalie; Veuille, Michel; Weigt, Lee; Planes, Serge. |
| The emergence of DNA barcoding and metabarcoding opened new ways to study biological diversity, however, the completion of DNA barcode libraries is fundamental for such approaches to succeed. This dataset is a DNA barcode reference library (fragment of Cytochrome Oxydase I gene) for 2,190 specimens representing at least 540 species of shore fishes collected over 10 years at 154 sites across the four volcanic archipelagos of French Polynesia; the Austral, Gambier, Marquesas and Society Islands, a 5,000,000 km(2) area. At present, 65% of the known shore fish species of these archipelagoes possess a DNA barcode associated with preserved, photographed, tissue sampled and cataloged specimens, and extensive collection locality data. This dataset represents one... |
| Tipo: Text |
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| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00508/61942/66026.pdf |
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| Escher,Fabiano; Wilkinson,John. |
| Resumo O argumento desenvolvido no artigo, baseado na abordagem dos regimes alimentares, é que a formação do “complexo soja-carne Brasil-China”, a partir do início dos anos 2000, representa uma mudança policêntrica nas relações agroalimentares globais, impulsionada pelos interesses das corporações do agronegócio e indústrias alimentares, bem como dos estados nacionais, em uma direção Sul/Oriente, que desafia o poder estabelecido das grandes corporações transnacionais do Atlântico Norte. Com base na literatura contemporânea em economia política agrária e numa combinação de dados quantitativos e qualitativos, são identificadas as origens, características e dinâmicas do complexo soja-carne Brasil-China através de uma análise comparativa e relacional. Após uma... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Complexo soja-carne Brasil-China; Regime alimentar; Agronegócio; Comércio agrícola internacional; Investimentos diretos externos. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-20032019000400656 |
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| Howell, Kerry L.; Davies, Jaime S.; Allcock, A. Louise; Braga-henriques, Andreia; Buhl-mortensen, Pål; Carreiro-silva, Marina; Dominguez-carrió, Carlos; Durden, Jennifer M.; Foster, Nicola L.; Game, Chloe A.; Hitchin, Becky; Horton, Tammy; Hosking, Brett; Jones, Daniel Ob; Mah, Christopher; Laguionie Marchais, Claire; Menot, Lenaick; Morato, Telmo; Pearman, Tabitha R. R.; Piechaud, Nils; Ross, Rebecca E.; Ruhl, Henry A.; Saeedi, Hanieh; Stefanoudis, Paris V.; Taranto, Gerald H.; Thompson, Michael B.; Taylor, James R.; Tyler, Paul; Vad, Johanne; Victorero, Lissette; Vieira, Rui P.; Woodall, Lucy C.; Xavier, Joana R.; Wagner, Daniel. |
| Video and image data are regularly used in the field of benthic ecology to document biodiversity. However, their use is subject to a number of challenges, principally the identification of taxa within the images without associated physical specimens. The challenge of applying traditional taxonomic keys to the identification of fauna from images has led to the development of personal, group, or institution level reference image catalogues of operational taxonomic units (OTUs) or morphospecies. Lack of standardisation among these reference catalogues has led to problems with observer bias and the inability to combine datasets across studies. In addition, lack of a common reference standard is stifling efforts in the application of artificial intelligence to... |
| Tipo: Text |
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| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00602/71408/69862.pdf |
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| Registros recuperados: 7.979 | |
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