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description Publicationkeyboard_double_arrow_right Article 2024Publisher:Elsevier BV Funded by:Department of Agriculture, Food and the Marine, Ireland, Sustainable Energy Authority of Ireland, SFI | MAME: Managing Agricultur...Department of Agriculture, Food and the Marine, Ireland ,Sustainable Energy Authority of Ireland ,SFI| MAME: Managing Agricultural Methane Emissions. Transforming the greenhouse gas footprint and bio-economic value of ruminant agriculture by selective inhibition of methanogenic archaeaStephen Nolan; Dermot Hughes; Camilla E. Thorn; Ruairi Friel; Vincent O'Flaherty;Pig slurry is an agricultural residue with potential for utilisation as organic fertiliser and biomethane feedstock. That potential value is typically diminished via greenhouse and ammonia gaseous losses during temporary storage, an issue further exacerbated by the global warming, pollutant and malodorous nature of those compounds. Existing methods of reducing emissions from pig slurry may require significant capital outlay and/or may prove difficult to retrofit. A promising reactive oxygen-based additive (GasAbate®) was thus scaled-up to 1 m3 tanks filled with 750 L weaner slurry. Several experiments were carried out in three distinct phases, namely i. ambient temperature scale-up; ii. heated 1 m3 trials to determine optimal application method; iii. heated 1 m3 trials to compare results in static and dynamic chamber scenarios, with each iteration aiming to garner understanding of treatment efficacy under various conditions. The results demonstrate the scalability of this additive, its efficacy in reducing total volume of gaseous emissions (63–90% reduction), ammonia emissions (22–58% reduction) and malodorous compound evolution (22–83% reduction for a range of compounds) during temporary storage and the resulting retention of energy and nutrient value in the slurry, with 34–57% higher biomethane potential. The use of this additive could be well suited to farms that require short-term slurry storage (ca. 30 days) before feeding the slurry to a biogas system.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.cesys.2023.100157&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.cesys.2023.100157&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2024Publisher:MDPI AG Funded by:Sustainable Energy Authority of IrelandSustainable Energy Authority of IrelandAuthors: Kong Zhang; Vikram Pakrashi; Jimmy Murphy; Guangbo Hao;Kong Zhang; Vikram Pakrashi; Jimmy Murphy; Guangbo Hao;doi: 10.3390/s24030911
Operations and maintenance (O&M) of floating offshore wind turbines (FOWTs) require regular inspection activities to predict, detect, and troubleshoot faults at high altitudes and in harsh environments such as strong winds, waves, and tides. Their costs typically account for more than 30% of the lifetime cost due to high labor costs and long downtime. Different inspection methods, including manual inspection, permanent sensors, climbing robots, remotely operated vehicles (ROVs), and unmanned aerial vehicles (UAVs), can be employed to fulfill O&M missions. The UAVs, as an enabling technology, can deal with time and space constraints easily and complete tasks in a cost-effective and efficient manner, which have been widely used in different industries in recent years. This study provides valuable insights into the existing applications of UAVs in FOWT inspection, highlighting their potential to reduce the inspection cost and thereby reduce the cost of energy production. The article introduces the rationale for applying UAVs to FOWT inspection and examines the current technical status, research gaps, and future directions in this field by conducting a comprehensive literature review over the past 10 years. This paper will also include a review of UAVs’ applications in other infrastructure inspections, such as onshore wind turbines, bridges, power lines, solar power plants, and offshore oil and gas fields, since FOWTs are still in the early stages of development. Finally, the trends of UAV technology and its application in FOWTs inspection are discussed, leading to our future research direction.
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You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3390/s24030911&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3390/s24030911&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2024Publisher:MDPI AG Funded by:SFI | VistaMilk CentreSFI| VistaMilk CentreRumia Basu; Eve Daly; Colin Brown; Asaf Shnel; Patrick Tuohy;doi: 10.3390/rs16020220
Soil moisture is important for understanding climate, water resources, water storage, and land use management. This study used Sentinel-2 (S-2) satellite optical data to retrieve surface soil moisture at a 10 m scale on grassland sites with low hydraulic conductivity soil in a climate dominated by heavy rainfall. Soil moisture was estimated after modifying the Optical Trapezoidal Model to account for mixed land cover in such conditions. The method uses data from a short-wave infra-red band, which is sensitive to soil moisture, and four vegetation indices from optical bands, which are sensitive to overlying vegetation. Scatter plots of these data from multiple, infrequent satellite passes are used to define the range of surface moisture conditions. The saturated and dry edges are clearly non-linear, regardless of the choice of vegetation index. Land cover masks are used to generate scatter plots from data only over grassland sites. The Enhanced Vegetation Index demonstrated advantages over other vegetation indices for surface moisture estimation over the entire range of grassland conditions. In poorly drained soils, the time lag between satellite surface moisture retrievals and in situ sensor soil moisture at depth must be part of the validation process. This was achieved by combining an approximate solution to the Richards’ Equation, along with measurements of saturated and residual moisture from soil samples, to optimise the correlations between measurements from satellites and sensors at a 15 cm depth. Time lags of 2–4 days resulted in a reduction of the root mean square errors between volumetric soil moisture predicted from S-2 data and that measured by in situ sensors, from ~0.1 m3/m3 to 3/m3. The surface moisture results for two grassland sites were analysed using statistical concepts based upon the temporal stability of soil water content, an ideal framework for the intermittent Sentinel-2 data in conditions of persistent cloud cover. The analysis could discriminate between different natural drainages and surface soil textures in grassland areas and could identify sub-surface artificial drainage channels. The techniques are transferable for land-use and agricultural management in diverse environmental conditions without the need for extensive and expensive in situ sensor networks.
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You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3390/rs16020220&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3390/rs16020220&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2024Publisher:FapUNIFESP (SciELO) Authors: Fabrício de Lima; Otacílio Divino Rezende Neto; Frederico Landim Teixeira; Márcio da Silva Araújo; +3 AuthorsFabrício de Lima; Otacílio Divino Rezende Neto; Frederico Landim Teixeira; Márcio da Silva Araújo; André Cirilo de Sousa Almeida; Edson Hirose; Flávio Gonçalves de Jesus;ABSTRACT: Anticarsia gemmatalis (Lepidoptera: Erebidae) is distributed in tropical and subtropical regions of America, and is an important pest of Fabaceae, such as: soybean, peanut, common bean, cowpea, pea, chickpea and kudzu. In soybean, the velvet bean caterpillar is important due to the plant defoliation in their larval stage. This study evaluated soybean cultivars as source of resistance to A. gemmatalis by antixenosis (attractiveness and non-preference for feeding) and antibiosis (biological parameters of the insect). The parameters evaluated were: antixenosis: attractiveness and non-preference, dry mass consumed and attractiveness index and antibiosis: duration of larval and pupal stages, adult longevity, total cycle, larval and pupal weights and larval, pupal and total viability. Considering antixenosis and antibiosis the least suitable cultivars for A. gemmatalis were found to be BRS 8383 IPRO, BRS 1074 IPRO, BRS 1061 IPRO, BRS 7180 IPRO, BRS 9383 IPRO, BRS 8980 IPRO and BRS 1003 IPRO due to high mortality in the larval phase. The cultivars BRS 523 and BRS 543 RR “block technology” suggest displays antixenosis and or antibiosis to A. gemmatalis. These cultivars can be used by soybean producers in combination with other control tactics in soybean IPM.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1590/0103-8478cr20220534&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1590/0103-8478cr20220534&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2024Publisher:FapUNIFESP (SciELO) Authors: Gésia Coutinho Marcelino; Marina Silva da Cunha;Gésia Coutinho Marcelino; Marina Silva da Cunha;Resumo Este trabalho estudou o comportamento da pobreza multidimensional e de renda, bem como seus determinantes no Brasil, evidenciando as diferenças entre as áreas rurais e urbanas com base nas informações das Pesquisas Nacionais por Amostra de Domicílios Contínua (PNADC) de 2019. Foi utilizada a metodologia Alkire-Foster na construção de um Índice de Pobreza Multidimensional (IPM), além do modelo logit para estimar os impactos na pobreza de determinantes relacionados a características domiciliares. A dimensão saúde e saneamento foi a que mais contribuiu com o IPM, seguida da dimensão educação e condições habitacionais. A pobreza unidimensional foi maior do que a multidimensional, além disso, a pobreza nas áreas rurais foi também maior. Entre os determinantes da pobreza, estar em domicílios com chefes não brancos, mais jovens, não casados, desempregados, menos escolarizados e ser das regiões Norte e Nordeste aumentaram as chances de pobreza. Além disso, domicílios com chefes mulheres tiveram menores chances de pobreza multidimensional, embora mais chances de pobreza unidimensional.
Revista de Economia ... arrow_drop_down Revista de Economia e Sociologia RuralArticle . 2024 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1590/1806-9479.2022.266430pt&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesgold 1 citations 1 popularity Average influence Average impulse Average Powered by BIP!more_vert Revista de Economia ... arrow_drop_down Revista de Economia e Sociologia RuralArticle . 2024 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1590/1806-9479.2022.266430pt&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2024Publisher:FapUNIFESP (SciELO) Luís Antônio Klein; Volmir Sergio Marchioro; Marcos Toebe; Tiago Olivoto; Daniela Meira; Carine Meier; Gesiel Chitolina; Lucas Revers Allebrante; Geovanna Nikole Pereira Ricardi; Ricardo Reffatti Bastiani; Cleiton Antônio Busatto;ABSTRACT: This research evaluated the agronomic performance through mixed models, and determined the genetic divergence between black oat genotypes. The experiment was carried out at Federal University of Santa Maria, Frederico Westphalen/RS. Fourteen black oat genotypes were evaluated, being 11 lines developed by Breeding Program of University, and three commercial cultivars (IAPAR 61, UPFA 21 - Moreninha and, IPR Cabocla). We evaluated quantitative traits associated to plant height, cycle, dry mass yield and seeds yield; and 19 qualitative traits, being these morphological descriptors. The results showed that lines UFSMFW 2-05 and UFSMFW 2-07 stand out with characteristics such as early cycle, higher dry mass and grain yield. Divergence analysis revealed the formation of three distinct groups, indicating the presence of variability. These results suggested the potential for the development of new cultivars of black oat, presenting early cycle and good grain yield.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1590/0103-8478cr20220239&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesgold 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1590/0103-8478cr20220239&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2024Publisher:FapUNIFESP (SciELO) Authors: Bruno de Souza Machado; Mateus de Carvalho Reis Neves; Marcelo José Braga; Davi Rogério de Moura Costa;Bruno de Souza Machado; Mateus de Carvalho Reis Neves; Marcelo José Braga; Davi Rogério de Moura Costa;Abstract The objective of the study was to measure the impacts of Pronaf access on family farming (FF) performance measures with analysis for the FF and its typologies Pronaf B and Pronaf V of the 2017 Agricultural Census. Variables related to family farmers, their establishments and climate were used. The methodology was composed of Entropy Balancing for treatment analysis and Minimal Weighted Squares to measure the impacts. The use of different levels of intensity confirmed the presence of regional concentrations in access in all analyzes. The results of the impacts on FF showed to be related to the Pronaf V typology, confirming the need to analyze the disaggregated FF. The impacts on the Pronaf B typology were negative, suggesting that these farmers are potentially using the obtained credit inappropriately and/or inefficiently. This reaffirms the need to integrate Pronaf with other policies, such as technical assistance and rural extension.
Revista de Economia ... arrow_drop_down Revista de Economia e Sociologia RuralArticle . 2024 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1590/1806-9479.2023.273994&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Revista de Economia ... arrow_drop_down Revista de Economia e Sociologia RuralArticle . 2024 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1590/1806-9479.2023.273994&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2024Publisher:FapUNIFESP (SciELO) Authors: Victor Hugo Graça Silva; Victor Peçanha de Miranda Coelho; Valdeci Orioli Júnior; Paulo Eduardo Branco Paiva; +1 AuthorsVictor Hugo Graça Silva; Victor Peçanha de Miranda Coelho; Valdeci Orioli Júnior; Paulo Eduardo Branco Paiva; Hamilton César de Oliveira Charlo;ABSTRACT: Fertigation is widely used in seedling production for different crops, including passion fruit. There is no consensus on the ideal nutrient solution, and as such, nurseries have used fertigation empirically. This study assessed the electrical conductivity of nutrient solution containing macro and micronutrients in passion fruit seedling production and compared it with commercially used fertigation. A completely randomized design was used, with five treatments and six repetitions. Four electrical conductivities (0.5, 1.0, 2.0 and 4.0 dS m-1) of a complete nutrient solution and an additional treatment (commercial nutrient solution) were analyzed. Daily fertigation with a complete nutrient solution (macro and micronutrients) at electrical conductivities between 2.6 and 3.3 dS m-1 followed by two daily irrigations are efficient at producing FB 300 “Araguari” passion fruit seedlings in coconut fiber substrate, with benefits such as greater biomass and better Dickson quality index when compared to commercial nutrient solution. RESUMO: A fertirrigação é amplamente utilizada na produção de mudas de várias culturas, inclusive o maracujazeiro. Não existe consenso sobre qual solução nutritiva deve ser adotada na produção de mudas de maracujazeiro, mas por causa disso, viveiristas têm usado a fertirrigação empiricamente. O objetivo deste trabalho foi avaliar condutividades elétricas de solução nutritiva com macros e micronutrientes na produção de mudas de maracujazeiro e compará-las com uma fertirrigação adotada comercialmente. Foi utilizado delineamento experimental inteiramente casualizado, com cinco tratamentos e seis repetições. Foram estudadas quatro condutividades elétricas (0,5; 1,0; 2,0 e 4,0 dS m-1) de solução nutritiva completa e um tratamento adicional (solução nutritiva adotada comercialmente). Em substrato à base de fibra de coco, fertirrigações diárias com solução nutritiva completa (macro e micronutrientes), com condutividades elétricas entre 2,6 a 3,3 dS m-1, seguidas de duas irrigações diárias são eficientes na produção de mudas de maracujazeiro FB 300 “Araguari”, inclusive com vantagens, como maior biomassa e índice de qualidade de Dickson em relação à solução nutritiva comercial.
Ciência Rural arrow_drop_down Scientific Electronic Library Online - BrazilArticle . 2023License: CC BYData sources: Scientific Electronic Library Online - Braziladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1590/0103-8478cr20210442&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesgold 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Ciência Rural arrow_drop_down Scientific Electronic Library Online - BrazilArticle . 2023License: CC BYData sources: Scientific Electronic Library Online - Braziladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1590/0103-8478cr20210442&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2024Publisher:FapUNIFESP (SciELO) Authors: Mauro Eduardo Delgrossi; Ludgero Cardoso Galli Vieira; Mário Lúcio de Avila; Mireya Valencia Perafán; +1 AuthorsMauro Eduardo Delgrossi; Ludgero Cardoso Galli Vieira; Mário Lúcio de Avila; Mireya Valencia Perafán; Reinaldo José de Miranda Filho;Resumo Este estudo avalia o impacto da assistência técnica e extensão rural prestadas pelo Projeto Dom Hélder Câmara (PDHC II) no semiárido brasileiro, que teve como objetivos a redução dos níveis de pobreza e das desigualdades na região, qualificando os agricultores familiares para desenvolverem uma produção sustentável e estimulando a replicação de boas práticas agropecuárias. Utilizando o método “propensity score matching” foram analisados 16 diferentes indicadores das famílias atendidas e do grupo de controle, envolvendo rendas monetárias e não monetárias. Os resultados apontam que o programa logrou êxito em beneficiar famílias pobres ou extremamente pobres dessa região, levando assistência técnica e extensão rural e, para uma fração deles, o acesso ao Programa Fomento Rural. Além disso, o PDHC II atingiu seus objetivos de propiciar um incremento na produção agrícola e nos rendimentos dos beneficiários, com um impacto ainda mais proeminente entre aqueles que receberam os recursos de fomento produtivo. Pode-se concluir que a assistência técnica e extensão rural foram eficazes, beneficiando agricultores familiares pobres do semiárido brasileiro, tendo maior impacto quando associada aos recursos de fomento produtivo. Abstract This study evaluates the impact of technical assistance and rural extension provided by the Dom Hélder Câmara Project (PDHC II) in the Brazilian semiarid region, which aimed to reduce the poverty levels and inequalities in the region, qualifying family farmers to develop sustainable production and encouraging the replication of good agricultural practices. Using the propensity score matching method, 16 different indicators of the assisted families and the control group were analyzed, involving monetary and nonmonetary incomes. The results indicate that the program was successful in benefiting poor or extremely poor families in this region, providing technical assistance and rural extension and, for a fraction of them, access to the Rural Funding Program. In addition, PDHC II achieved its objectives of providing an increase in agricultural production and in the income of the beneficiaries, with an even more prominent impact among those who received remittances from funding program. It can be concluded that technical assistance and rural extension were effective, benefiting poor family farmers in the Brazilian semiarid region and having a larger impact when associated with productive funding resources.
Revista de Economia ... arrow_drop_down Revista de Economia e Sociologia RuralArticle . 2024 . Peer-reviewedLicense: CC BYData sources: CrossrefScientific Electronic Library Online - BrazilArticle . 2023License: CC BYData sources: Scientific Electronic Library Online - Braziladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess Routesgold 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Revista de Economia ... arrow_drop_down Revista de Economia e Sociologia RuralArticle . 2024 . Peer-reviewedLicense: CC BYData sources: CrossrefScientific Electronic Library Online - BrazilArticle . 2023License: CC BYData sources: Scientific Electronic Library Online - Braziladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2024Publisher:FapUNIFESP (SciELO) Viviani Gomes; Camila Costa Baccili; Raquel Sousa Marques; Sergio Soriano; Natália Hettwer Pedroso; Eduardo Furtado Flores;ABSTRACT: This study evaluated the vaccine-induced serological response after administering four commercial formulations containing Bovine Viral Diarrhea Virus (BVDV) type-1, BVDV-2, and Bovine Herpesvirus type 1 (BoHV-1) to young heifers with circulating maternal antibody titers. The study also determined the anamnestic response to vaccinations after the complete metabolization of maternal antibodies when the calves reached six months. Eighty-seven Holstein heifers were selected and randomly distributed into four experimental groups based on the vaccine administered. The four vaccine-based experimental groups were as follows: vaccine A (n = 22), vaccine B (n = 22), vaccine C (n = 24), and vaccine D (n = 19), given on the 60th, 90th, and 180th day of life, respectively. Virus-neutralization (VN) tests were performed at baseline (day 60) and 30 days after administering the second (day 120) and third doses (day 210). We analyzed the effect of vaccine group (P ≤ 0.001), day of vaccination (P ≤ 0.001), and group versus vaccine day interaction (P ≤ 0.001) for antibody titers produced against BVDV-1, BVDV-2, and BoHV-1 using the PROC MIXED method (Statistical Analysis System -SAS 9.4). Antibody titers against BVDV-1, BVDV-2, and BoHV-1 were similar at baseline and on day 60 of life. The mean antibody titers were constant and persisted against BVDV-1 in heifers immunized with vaccines A and C. Heifers immunized with vaccine A alone had a similar effect against BVDV-2. Regarding BoHV-1, the antibody titers decreased between days 60 and 210 in groups B, C, and D. The antibody titer for heifers in group A also decreased between days 60 and day 120, and an intense increase in titers was observed on day 210. After being immunized with formulations B, C, and D, the frequency of animals with titers above protective levels for BVDV-1, BVDV-2, and BoHV-1 was very low or null. Indicators of anamnestic response were observed in heifers vaccinated with formulation A only. Therefore, it can be concluded that passive immunity negatively interferes with antibody production after vaccination.
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You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess Routesgold 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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description Publicationkeyboard_double_arrow_right Article 2024Publisher:Elsevier BV Funded by:Department of Agriculture, Food and the Marine, Ireland, Sustainable Energy Authority of Ireland, SFI | MAME: Managing Agricultur...Department of Agriculture, Food and the Marine, Ireland ,Sustainable Energy Authority of Ireland ,SFI| MAME: Managing Agricultural Methane Emissions. Transforming the greenhouse gas footprint and bio-economic value of ruminant agriculture by selective inhibition of methanogenic archaeaStephen Nolan; Dermot Hughes; Camilla E. Thorn; Ruairi Friel; Vincent O'Flaherty;Pig slurry is an agricultural residue with potential for utilisation as organic fertiliser and biomethane feedstock. That potential value is typically diminished via greenhouse and ammonia gaseous losses during temporary storage, an issue further exacerbated by the global warming, pollutant and malodorous nature of those compounds. Existing methods of reducing emissions from pig slurry may require significant capital outlay and/or may prove difficult to retrofit. A promising reactive oxygen-based additive (GasAbate®) was thus scaled-up to 1 m3 tanks filled with 750 L weaner slurry. Several experiments were carried out in three distinct phases, namely i. ambient temperature scale-up; ii. heated 1 m3 trials to determine optimal application method; iii. heated 1 m3 trials to compare results in static and dynamic chamber scenarios, with each iteration aiming to garner understanding of treatment efficacy under various conditions. The results demonstrate the scalability of this additive, its efficacy in reducing total volume of gaseous emissions (63–90% reduction), ammonia emissions (22–58% reduction) and malodorous compound evolution (22–83% reduction for a range of compounds) during temporary storage and the resulting retention of energy and nutrient value in the slurry, with 34–57% higher biomethane potential. The use of this additive could be well suited to farms that require short-term slurry storage (ca. 30 days) before feeding the slurry to a biogas system.
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You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.cesys.2023.100157&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.cesys.2023.100157&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2024Publisher:MDPI AG Funded by:Sustainable Energy Authority of IrelandSustainable Energy Authority of IrelandAuthors: Kong Zhang; Vikram Pakrashi; Jimmy Murphy; Guangbo Hao;Kong Zhang; Vikram Pakrashi; Jimmy Murphy; Guangbo Hao;doi: 10.3390/s24030911
Operations and maintenance (O&M) of floating offshore wind turbines (FOWTs) require regular inspection activities to predict, detect, and troubleshoot faults at high altitudes and in harsh environments such as strong winds, waves, and tides. Their costs typically account for more than 30% of the lifetime cost due to high labor costs and long downtime. Different inspection methods, including manual inspection, permanent sensors, climbing robots, remotely operated vehicles (ROVs), and unmanned aerial vehicles (UAVs), can be employed to fulfill O&M missions. The UAVs, as an enabling technology, can deal with time and space constraints easily and complete tasks in a cost-effective and efficient manner, which have been widely used in different industries in recent years. This study provides valuable insights into the existing applications of UAVs in FOWT inspection, highlighting their potential to reduce the inspection cost and thereby reduce the cost of energy production. The article introduces the rationale for applying UAVs to FOWT inspection and examines the current technical status, research gaps, and future directions in this field by conducting a comprehensive literature review over the past 10 years. This paper will also include a review of UAVs’ applications in other infrastructure inspections, such as onshore wind turbines, bridges, power lines, solar power plants, and offshore oil and gas fields, since FOWTs are still in the early stages of development. Finally, the trends of UAV technology and its application in FOWTs inspection are discussed, leading to our future research direction.
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You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3390/s24030911&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3390/s24030911&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2024Publisher:MDPI AG Funded by:SFI | VistaMilk CentreSFI| VistaMilk CentreRumia Basu; Eve Daly; Colin Brown; Asaf Shnel; Patrick Tuohy;doi: 10.3390/rs16020220
Soil moisture is important for understanding climate, water resources, water storage, and land use management. This study used Sentinel-2 (S-2) satellite optical data to retrieve surface soil moisture at a 10 m scale on grassland sites with low hydraulic conductivity soil in a climate dominated by heavy rainfall. Soil moisture was estimated after modifying the Optical Trapezoidal Model to account for mixed land cover in such conditions. The method uses data from a short-wave infra-red band, which is sensitive to soil moisture, and four vegetation indices from optical bands, which are sensitive to overlying vegetation. Scatter plots of these data from multiple, infrequent satellite passes are used to define the range of surface moisture conditions. The saturated and dry edges are clearly non-linear, regardless of the choice of vegetation index. Land cover masks are used to generate scatter plots from data only over grassland sites. The Enhanced Vegetation Index demonstrated advantages over other vegetation indices for surface moisture estimation over the entire range of grassland conditions. In poorly drained soils, the time lag between satellite surface moisture retrievals and in situ sensor soil moisture at depth must be part of the validation process. This was achieved by combining an approximate solution to the Richards’ Equation, along with measurements of saturated and residual moisture from soil samples, to optimise the correlations between measurements from satellites and sensors at a 15 cm depth. Time lags of 2–4 days resulted in a reduction of the root mean square errors between volumetric soil moisture predicted from S-2 data and that measured by in situ sensors, from ~0.1 m3/m3 to 3/m3. The surface moisture results for two grassland sites were analysed using statistical concepts based upon the temporal stability of soil water content, an ideal framework for the intermittent Sentinel-2 data in conditions of persistent cloud cover. The analysis could discriminate between different natural drainages and surface soil textures in grassland areas and could identify sub-surface artificial drainage channels. The techniques are transferable for land-use and agricultural management in diverse environmental conditions without the need for extensive and expensive in situ sensor networks.
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You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3390/rs16020220&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3390/rs16020220&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2024Publisher:FapUNIFESP (SciELO) Authors: Fabrício de Lima; Otacílio Divino Rezende Neto; Frederico Landim Teixeira; Márcio da Silva Araújo; +3 AuthorsFabrício de Lima; Otacílio Divino Rezende Neto; Frederico Landim Teixeira; Márcio da Silva Araújo; André Cirilo de Sousa Almeida; Edson Hirose; Flávio Gonçalves de Jesus;ABSTRACT: Anticarsia gemmatalis (Lepidoptera: Erebidae) is distributed in tropical and subtropical regions of America, and is an important pest of Fabaceae, such as: soybean, peanut, common bean, cowpea, pea, chickpea and kudzu. In soybean, the velvet bean caterpillar is important due to the plant defoliation in their larval stage. This study evaluated soybean cultivars as source of resistance to A. gemmatalis by antixenosis (attractiveness and non-preference for feeding) and antibiosis (biological parameters of the insect). The parameters evaluated were: antixenosis: attractiveness and non-preference, dry mass consumed and attractiveness index and antibiosis: duration of larval and pupal stages, adult longevity, total cycle, larval and pupal weights and larval, pupal and total viability. Considering antixenosis and antibiosis the least suitable cultivars for A. gemmatalis were found to be BRS 8383 IPRO, BRS 1074 IPRO, BRS 1061 IPRO, BRS 7180 IPRO, BRS 9383 IPRO, BRS 8980 IPRO and BRS 1003 IPRO due to high mortality in the larval phase. The cultivars BRS 523 and BRS 543 RR “block technology” suggest displays antixenosis and or antibiosis to A. gemmatalis. These cultivars can be used by soybean producers in combination with other control tactics in soybean IPM.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1590/0103-8478cr20220534&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1590/0103-8478cr20220534&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2024Publisher:FapUNIFESP (SciELO) Authors: Gésia Coutinho Marcelino; Marina Silva da Cunha;Gésia Coutinho Marcelino; Marina Silva da Cunha;Resumo Este trabalho estudou o comportamento da pobreza multidimensional e de renda, bem como seus determinantes no Brasil, evidenciando as diferenças entre as áreas rurais e urbanas com base nas informações das Pesquisas Nacionais por Amostra de Domicílios Contínua (PNADC) de 2019. Foi utilizada a metodologia Alkire-Foster na construção de um Índice de Pobreza Multidimensional (IPM), além do modelo logit para estimar os impactos na pobreza de determinantes relacionados a características domiciliares. A dimensão saúde e saneamento foi a que mais contribuiu com o IPM, seguida da dimensão educação e condições habitacionais. A pobreza unidimensional foi maior do que a multidimensional, além disso, a pobreza nas áreas rurais foi também maior. Entre os determinantes da pobreza, estar em domicílios com chefes não brancos, mais jovens, não casados, desempregados, menos escolarizados e ser das regiões Norte e Nordeste aumentaram as chances de pobreza. Além disso, domicílios com chefes mulheres tiveram menores chances de pobreza multidimensional, embora mais chances de pobreza unidimensional.
Revista de Economia ... arrow_drop_down Revista de Economia e Sociologia RuralArticle . 2024 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1590/1806-9479.2022.266430pt&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesgold 1 citations 1 popularity Average influence Average impulse Average Powered by BIP!more_vert Revista de Economia ... arrow_drop_down Revista de Economia e Sociologia RuralArticle . 2024 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1590/1806-9479.2022.266430pt&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2024Publisher:FapUNIFESP (SciELO) Luís Antônio Klein; Volmir Sergio Marchioro; Marcos Toebe; Tiago Olivoto; Daniela Meira; Carine Meier; Gesiel Chitolina; Lucas Revers Allebrante; Geovanna Nikole Pereira Ricardi; Ricardo Reffatti Bastiani; Cleiton Antônio Busatto;ABSTRACT: This research evaluated the agronomic performance through mixed models, and determined the genetic divergence between black oat genotypes. The experiment was carried out at Federal University of Santa Maria, Frederico Westphalen/RS. Fourteen black oat genotypes were evaluated, being 11 lines developed by Breeding Program of University, and three commercial cultivars (IAPAR 61, UPFA 21 - Moreninha and, IPR Cabocla). We evaluated quantitative traits associated to plant height, cycle, dry mass yield and seeds yield; and 19 qualitative traits, being these morphological descriptors. The results showed that lines UFSMFW 2-05 and UFSMFW 2-07 stand out with characteristics such as early cycle, higher dry mass and grain yield. Divergence analysis revealed the formation of three distinct groups, indicating the presence of variability. These results suggested the potential for the development of new cultivars of black oat, presenting early cycle and good grain yield.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1590/0103-8478cr20220239&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesgold 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1590/0103-8478cr20220239&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2024Publisher:FapUNIFESP (SciELO) Authors: Bruno de Souza Machado; Mateus de Carvalho Reis Neves; Marcelo José Braga; Davi Rogério de Moura Costa;Bruno de Souza Machado; Mateus de Carvalho Reis Neves; Marcelo José Braga; Davi Rogério de Moura Costa;Abstract The objective of the study was to measure the impacts of Pronaf access on family farming (FF) performance measures with analysis for the FF and its typologies Pronaf B and Pronaf V of the 2017 Agricultural Census. Variables related to family farmers, their establishments and climate were used. The methodology was composed of Entropy Balancing for treatment analysis and Minimal Weighted Squares to measure the impacts. The use of different levels of intensity confirmed the presence of regional concentrations in access in all analyzes. The results of the impacts on FF showed to be related to the Pronaf V typology, confirming the need to analyze the disaggregated FF. The impacts on the Pronaf B typology were negative, suggesting that these farmers are potentially using the obtained credit inappropriately and/or inefficiently. This reaffirms the need to integrate Pronaf with other policies, such as technical assistance and rural extension.
Revista de Economia ... arrow_drop_down Revista de Economia e Sociologia RuralArticle . 2024 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1590/1806-9479.2023.273994&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Revista de Economia ... arrow_drop_down Revista de Economia e Sociologia RuralArticle . 2024 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1590/1806-9479.2023.273994&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2024Publisher:FapUNIFESP (SciELO) Authors: Victor Hugo Graça Silva; Victor Peçanha de Miranda Coelho; Valdeci Orioli Júnior; Paulo Eduardo Branco Paiva; +1 AuthorsVictor Hugo Graça Silva; Victor Peçanha de Miranda Coelho; Valdeci Orioli Júnior; Paulo Eduardo Branco Paiva; Hamilton César de Oliveira Charlo;ABSTRACT: Fertigation is widely used in seedling production for different crops, including passion fruit. There is no consensus on the ideal nutrient solution, and as such, nurseries have used fertigation empirically. This study assessed the electrical conductivity of nutrient solution containing macro and micronutrients in passion fruit seedling production and compared it with commercially used fertigation. A completely randomized design was used, with five treatments and six repetitions. Four electrical conductivities (0.5, 1.0, 2.0 and 4.0 dS m-1) of a complete nutrient solution and an additional treatment (commercial nutrient solution) were analyzed. Daily fertigation with a complete nutrient solution (macro and micronutrients) at electrical conductivities between 2.6 and 3.3 dS m-1 followed by two daily irrigations are efficient at producing FB 300 “Araguari” passion fruit seedlings in coconut fiber substrate, with benefits such as greater biomass and better Dickson quality index when compared to commercial nutrient solution. RESUMO: A fertirrigação é amplamente utilizada na produção de mudas de várias culturas, inclusive o maracujazeiro. Não existe consenso sobre qual solução nutritiva deve ser adotada na produção de mudas de maracujazeiro, mas por causa disso, viveiristas têm usado a fertirrigação empiricamente. O objetivo deste trabalho foi avaliar condutividades elétricas de solução nutritiva com macros e micronutrientes na produção de mudas de maracujazeiro e compará-las com uma fertirrigação adotada comercialmente. Foi utilizado delineamento experimental inteiramente casualizado, com cinco tratamentos e seis repetições. Foram estudadas quatro condutividades elétricas (0,5; 1,0; 2,0 e 4,0 dS m-1) de solução nutritiva completa e um tratamento adicional (solução nutritiva adotada comercialmente). Em substrato à base de fibra de coco, fertirrigações diárias com solução nutritiva completa (macro e micronutrientes), com condutividades elétricas entre 2,6 a 3,3 dS m-1, seguidas de duas irrigações diárias são eficientes na produção de mudas de maracujazeiro FB 300 “Araguari”, inclusive com vantagens, como maior biomassa e índice de qualidade de Dickson em relação à solução nutritiva comercial.
Ciência Rural arrow_drop_down Scientific Electronic Library Online - BrazilArticle . 2023License: CC BYData sources: Scientific Electronic Library Online - Braziladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess Routesgold 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Ciência Rural arrow_drop_down Scientific Electronic Library Online - BrazilArticle . 2023License: CC BYData sources: Scientific Electronic Library Online - Braziladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2024Publisher:FapUNIFESP (SciELO) Authors: Mauro Eduardo Delgrossi; Ludgero Cardoso Galli Vieira; Mário Lúcio de Avila; Mireya Valencia Perafán; +1 AuthorsMauro Eduardo Delgrossi; Ludgero Cardoso Galli Vieira; Mário Lúcio de Avila; Mireya Valencia Perafán; Reinaldo José de Miranda Filho;Resumo Este estudo avalia o impacto da assistência técnica e extensão rural prestadas pelo Projeto Dom Hélder Câmara (PDHC II) no semiárido brasileiro, que teve como objetivos a redução dos níveis de pobreza e das desigualdades na região, qualificando os agricultores familiares para desenvolverem uma produção sustentável e estimulando a replicação de boas práticas agropecuárias. Utilizando o método “propensity score matching” foram analisados 16 diferentes indicadores das famílias atendidas e do grupo de controle, envolvendo rendas monetárias e não monetárias. Os resultados apontam que o programa logrou êxito em beneficiar famílias pobres ou extremamente pobres dessa região, levando assistência técnica e extensão rural e, para uma fração deles, o acesso ao Programa Fomento Rural. Além disso, o PDHC II atingiu seus objetivos de propiciar um incremento na produção agrícola e nos rendimentos dos beneficiários, com um impacto ainda mais proeminente entre aqueles que receberam os recursos de fomento produtivo. Pode-se concluir que a assistência técnica e extensão rural foram eficazes, beneficiando agricultores familiares pobres do semiárido brasileiro, tendo maior impacto quando associada aos recursos de fomento produtivo. Abstract This study evaluates the impact of technical assistance and rural extension provided by the Dom Hélder Câmara Project (PDHC II) in the Brazilian semiarid region, which aimed to reduce the poverty levels and inequalities in the region, qualifying family farmers to develop sustainable production and encouraging the replication of good agricultural practices. Using the propensity score matching method, 16 different indicators of the assisted families and the control group were analyzed, involving monetary and nonmonetary incomes. The results indicate that the program was successful in benefiting poor or extremely poor families in this region, providing technical assistance and rural extension and, for a fraction of them, access to the Rural Funding Program. In addition, PDHC II achieved its objectives of providing an increase in agricultural production and in the income of the beneficiaries, with an even more prominent impact among those who received remittances from funding program. It can be concluded that technical assistance and rural extension were effective, benefiting poor family farmers in the Brazilian semiarid region and having a larger impact when associated with productive funding resources.
Revista de Economia ... arrow_drop_down Revista de Economia e Sociologia RuralArticle . 2024 . Peer-reviewedLicense: CC BYData sources: CrossrefScientific Electronic Library Online - BrazilArticle . 2023License: CC BYData sources: Scientific Electronic Library Online - Braziladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess Routesgold 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Revista de Economia ... arrow_drop_down Revista de Economia e Sociologia RuralArticle . 2024 . Peer-reviewedLicense: CC BYData sources: CrossrefScientific Electronic Library Online - BrazilArticle . 2023License: CC BYData sources: Scientific Electronic Library Online - Braziladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2024Publisher:FapUNIFESP (SciELO) Viviani Gomes; Camila Costa Baccili; Raquel Sousa Marques; Sergio Soriano; Natália Hettwer Pedroso; Eduardo Furtado Flores;ABSTRACT: This study evaluated the vaccine-induced serological response after administering four commercial formulations containing Bovine Viral Diarrhea Virus (BVDV) type-1, BVDV-2, and Bovine Herpesvirus type 1 (BoHV-1) to young heifers with circulating maternal antibody titers. The study also determined the anamnestic response to vaccinations after the complete metabolization of maternal antibodies when the calves reached six months. Eighty-seven Holstein heifers were selected and randomly distributed into four experimental groups based on the vaccine administered. The four vaccine-based experimental groups were as follows: vaccine A (n = 22), vaccine B (n = 22), vaccine C (n = 24), and vaccine D (n = 19), given on the 60th, 90th, and 180th day of life, respectively. Virus-neutralization (VN) tests were performed at baseline (day 60) and 30 days after administering the second (day 120) and third doses (day 210). We analyzed the effect of vaccine group (P ≤ 0.001), day of vaccination (P ≤ 0.001), and group versus vaccine day interaction (P ≤ 0.001) for antibody titers produced against BVDV-1, BVDV-2, and BoHV-1 using the PROC MIXED method (Statistical Analysis System -SAS 9.4). Antibody titers against BVDV-1, BVDV-2, and BoHV-1 were similar at baseline and on day 60 of life. The mean antibody titers were constant and persisted against BVDV-1 in heifers immunized with vaccines A and C. Heifers immunized with vaccine A alone had a similar effect against BVDV-2. Regarding BoHV-1, the antibody titers decreased between days 60 and 210 in groups B, C, and D. The antibody titer for heifers in group A also decreased between days 60 and day 120, and an intense increase in titers was observed on day 210. After being immunized with formulations B, C, and D, the frequency of animals with titers above protective levels for BVDV-1, BVDV-2, and BoHV-1 was very low or null. Indicators of anamnestic response were observed in heifers vaccinated with formulation A only. Therefore, it can be concluded that passive immunity negatively interferes with antibody production after vaccination.
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For further information contact us at helpdesk@openaire.euAccess Routesgold 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1590/0103-8478cr20220364&type=result"></script>'); --> </script>
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