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  • Energy Research
  • PT
  • University of Lisbon

  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: orcid bw Cruz, Luis;
    Cruz, Luis
    ORCID
    Derived by OpenAIRE algorithms or harvested from 3rd party repositories

    Cruz, Luis in OpenAIRE
    orcid bw Abreu, Rui;
    Abreu, Rui
    ORCID
    Derived by OpenAIRE algorithms or harvested from 3rd party repositories

    Abreu, Rui in OpenAIRE

    High energy consumption is a challenging issue that an ever increasing number of mobile applications face today.However, energy consumption is being tested in an ad hoc way, despite being an important non-functional requirement of an application.Such limitation becomes particularly disconcerting during software testing: on the one hand, developers do not really know how to measure energy; on the other hand, there is no knowledge as to what is the energy overhead imposed by the testing framework.In this paper, as we evaluate eight popular mobile UI automation frameworks, we have discovered that there are automation frameworks that increase energy consumption up to roughly 2200%.While limited in the interactions one can do, Espresso is the most energy efficient framework.However, depending on the needs of the tester, Appium, Monkeyrunner, or UIAutomator are good alternatives.In practice, results show that deciding which is the most suitable framework is vital. We provide a decision tree to help developers make an educated decision on which framework suits best their testing needs.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ IEEE DataPortarrow_drop_down
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    IEEE DataPort
    Dataset . 2018
    License: CC BY
    Data sources: Datacite
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ IEEE DataPortarrow_drop_down
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      IEEE DataPort
      Dataset . 2018
      License: CC BY
      Data sources: Datacite
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  • Authors: orcid bw Salgueiro, Emília;
    Salgueiro, Emília
    ORCID
    Derived by OpenAIRE algorithms or harvested from 3rd party repositories

    Salgueiro, Emília in OpenAIRE
    orcid bw Magalhães, Vítor;
    Magalhães, Vítor
    ORCID
    Derived by OpenAIRE algorithms or harvested from 3rd party repositories

    Magalhães, Vítor in OpenAIRE
    orcid bw Rebotim, Andreia;
    Rebotim, Andreia
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    Rebotim, Andreia in OpenAIRE
    orcid bw Matos, Lélia;
    Matos, Lélia
    ORCID
    Derived by OpenAIRE algorithms or harvested from 3rd party repositories

    Matos, Lélia in OpenAIRE
    +4 Authors

    The CARBO-ACID research cruise (EUROFLEETS+ SEA02_10) was carried out on the RV Ramón Margalef between August 2nd and August 11st, with departing from Vigo – Spain and ending in Lisbon – Portugal. The main objective of this cruise was to collect data and samples to study the potential effects of ocean acidification on carbonate marine organisms (coccolithophores, pteropods, planktonic and benthic foraminifera, and corals) along the Iberian margin. With this objective, oceanographic data and water samples, plankton, cold-water corals and sediment samples were collected during an upwelling season, along two transects coinciding with the two persistent upwelling filaments off the Iberia Margin: the Cape Finisterra and the Cape Roca. In this dataset is guiven all the acquired data recollected onboad. During the CARBO-ACID cruise we did a total of 7 stations, 4 stations along the Cape Finisterra transect (from W to E: CA3, CA2, CA7, CA8) and 3 stations at the Cape Roca (from W to E: CA6, CA5, CA4) transect (Fig). At each station we usually started with a multibeam survey, a CTD and Rosette cast. These initial operations allowed to identify the different water masses present in this area, characterize their physical properties and to recover seawater samples at specific depth levels. The seawater samples were onboard subsampled, preserved in cold conditions or with chemicals and/ or filtered for several further analysis in the shore-based laboratories: DNA, chlorophyll, fitoplankton, coccolithophores, pH, alkalinity, stable isotopic composition, trace elements concentration and Suspend Particulate Matter. Subsequently to these operations, at each station, two vertical tows with a plankton multinet (with 5 nets) were done on the top 700 m of the water column to sample the planktonic communities of the different water depths. After this, sediment samples were recovered with a box-corer to study the past oceanographic conditions, between the pre-industrial Era and the Present, with multi-proxies used in paleoceanography and sedimentology. A total of 10 box-cores were recollected and each of them was onboard sub-sampled for eDNA, enzymes and benthic foraminifera. Fifteen shipek grab samples were recollected at the Fontanelas seamount (Estremadura Spur), station CA6, to characterize the sedimentary cover and to evaluate the presence of deep cold-water corals. Preliminary results show that the stations CA7, CA8 and CA4, located close to the coast, as expected, are the most influenced by the coastal upwelling, exhibiting colder surface water, higher values of fluorescence, and more zooplankton content reflecting higher phyto-zooplankton concentrations, as typical of the upwelling waters. At station CA4 temperature was higher and fluorescence showed lower values, indicative of less phytoplankton, and interpreted as indicating a different upwelling source water from that upwelled further north. Based on the CTD data, the Cape Roca transect is more influenced by the subtropical East North Atlantic Central Water (ENACWst), while the Cape Finisterra transect is more under the influence of the subpolar branch (ENACWsp). Seafloor sediment samples showed significant differences between the stations. Along the northern transect (Cape Finisterra) the seafloor sediments show an increase in grain size from the offshore to the coast. The offshore stations CA3 and CA2 revealed finer grained sediments, CA8 were composed of coarser sand and the station CA7, the shallowest station 77 m, presented the sediment composed mainly of shell fragments and coarse grain sand. Along the southern transect (Cape Roca), the offshore station CA6 (Fontanelas seamount) has coarser sandy sediments with rock clasts and cold-water coral fragments, and the stations CA5 and CA4 with fine sand to muddy sediments. The detailed CA6 bathymetry allowed to verify the existence of small plateaus on the slope of the Fontanelas seamount, where the fossil cold-water corals fragments were found, suggesting that this area is a very interesting system deserving further study with a ROV, and to characterize the corals fields and verify if there are live corals. These recollected data and samples will allow not only to reconstruct the pH variability under different environmental conditions, but also to estimate the biogeochemical changes along the coastal ocean waters as the anthropogenic influence increases. These results will contribute to better understand and model the effects on the biota under the future expected oceans pH changes.

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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: orcid Eser Yagci;
    Eser Yagci
    ORCID
    Harvested from ORCID Public Data File

    Eser Yagci in OpenAIRE
    orcid Fernando Nunes da Silva;
    Fernando Nunes da Silva
    ORCID
    Harvested from ORCID Public Data File

    Fernando Nunes da Silva in OpenAIRE

    East Lisbon is being exposed to large-scale urban regeneration processes, where luxury residential projects and mixed-use spatial developments are already underway. Thus, it is a living laboratory for “smart”, “creative” and “green” projects, as well as related urban public space interventions. Braço de Prata is an urban space overlooked by developers, being surrounded by obsolete industrial buildings. Concerning the recent interest in international investments in brownfield regeneration and greenfield developments, it represents an attractive urban terrain as a post-industrial working-class neighbourhood, where “smart” and “green” suggest transforming space so that both new and old residents can live and work together and share public space regardless of analysis on their environmental recognitions. The aim of this paper is to present an empirical evaluation model that examines the possible impacts of environmental negligence through the reorganisation of the physical and social fabric. The analyses focus on dwellers’ moral understanding of their changing environment as site-specific domains to address the unique conditions that affect transiently defined presumptions about the collective needs. Taking an evaluative approach in the Braço de Prata case, this paper demonstrates the specific socio-ecological implications of urban inequality in post-industrial neighbourhoods that could be threatened by new decisions, both through urban planning approaches and instruments.

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    Sustainability
    Article . 2021 . Peer-reviewed
    License: CC BY
    Data sources: Crossref
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    Sustainability
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    Sustainability
    Article . 2021
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Sustainabilityarrow_drop_down
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      Sustainability
      Article . 2021 . Peer-reviewed
      License: CC BY
      Data sources: Crossref
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
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      Data sources: UnpayWall
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      Sustainability
      Article . 2021
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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: orcid M.M. Almeida;
    M.M. Almeida
    ORCID
    Harvested from ORCID Public Data File

    M.M. Almeida in OpenAIRE
    orcid A.A. Más;
    A.A. Más
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    A.A. Más in OpenAIRE
    orcid T.M. Silva;
    T.M. Silva
    ORCID
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    T.M. Silva in OpenAIRE
    orcid M.F. Montemor;
    M.F. Montemor
    ORCID
    Harvested from ORCID Public Data File

    M.F. Montemor in OpenAIRE

    Abstract High power pseudocapacitors are extremely relevant to answer specific needs in the current energy transition arena and to implement an efficient renewable energy society. However, literature shows that are still open gaps concerning improvement of their energy density at high power, conversion efficiency, cost and cycle life. Electrodes based on active transition metal compounds, and in particular metal sulphides, evidence high potential to meet these objectives. This work discusses the dependence on the synthesis route of the charge storage mechanism of manganese sulphide-based materials and relates the pseudocapacitive response of these electrodes with their polycrystalline nature. Results reveal that a manganese oxy-sulphide mixture can achieve a high specific capacitance of 231 F.g−1 at 0.5 A/g in a 0.65 V active window. These values represent a 31.5 % increase compared to pure rambergite, γ-MnS, and 436 % compared to pure hausmannite Mn3O4 prepared under the same conditions. Moreover, the results show that manganese oxy-sulphide electrodes are characterized by good charge retention (73%), and superior long term capacity retention (above 86%) after 5000 cycles, evidencing potential for high power energy storage applications.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Repositório Científi...arrow_drop_down
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    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Electrochimica Acta
    Article . 2021 . Peer-reviewed
    License: Elsevier TDM
    Data sources: Crossref
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Repositório Científi...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      Electrochimica Acta
      Article . 2021 . Peer-reviewed
      License: Elsevier TDM
      Data sources: Crossref
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Santos, Catarina; Borges, Francisco; Sampaio, Eduardo; Figueiredo, Cátia; +4 Authors

    The dramatic decline of European eel (Anguilla anguilla) populations over recent decades has attracted considerable attention and concern. Furthermore, little is known concerning the sensitivity of eel’s early stages to projected future environmental change. Here we investigated, for the first time, the potential combined effects of ocean warming (OW; ∆ + 4oC; 18oC) and acidification (OA; ∆ - 0.4 pH units) on the survival and migratory behaviour of A. anguilla glass eels, namely their preference towards riverine cues (freshwater and geosmin). Recently arrived individuals were exposed to isolated and combined OW- and OA–conditions for 100 days, adjusting for the salinity gradients associated with upstream migration. A two-choice test was used to investigate migratory activity and shifts in preference towards freshwater environments. While OW decreased survival and increased migratory activity, OA appears to hinder migratory response, reducing the preference for riverine cues. Our results suggest that future conditions could potentially favor an early settlement of glass eels, reducing the proportion of fully-migratory individuals. Further research into the effects of climate change on eel migration and habitat selection is needed to implement efficient conservation plans for this critically endangered species. Santos&Borges_etal_DataIn this file, the data from our study on the influence of ocean warming and ocean acidification on the riverward migration of glass eels is present. These include survival and behavioural outputs as well as a code sheet for easier table read. The tables are R software ready and can be exported as '.csv' in order to run in the Rscript.BorgesSantos_etal_Data.xlsxSantos&Borges_etal_RscriptThis is the code for the Rscript of the statistical analysis performed in our study.BorgesSantos_etal_Rscript.txt

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    ZENODO
    Dataset . 2019
    License: CC 0
    Data sources: ZENODO
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    B2FIND
    Dataset . 2019
    Data sources: B2FIND
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    B2FIND
    Dataset . 2019
    Data sources: B2FIND
    DRYAD
    Dataset . 2019
    License: CC 0
    Data sources: Datacite
    DRYAD
    Dataset . 2019
    License: CC 0
    Data sources: Datacite
    DRYAD
    Dataset . 2019
    License: CC 0
    Data sources: Datacite
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      ZENODO
      Dataset . 2019
      License: CC 0
      Data sources: ZENODO
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      B2FIND
      Dataset . 2019
      Data sources: B2FIND
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      B2FIND
      Dataset . 2019
      Data sources: B2FIND
      DRYAD
      Dataset . 2019
      License: CC 0
      Data sources: Datacite
      DRYAD
      Dataset . 2019
      License: CC 0
      Data sources: Datacite
      DRYAD
      Dataset . 2019
      License: CC 0
      Data sources: Datacite
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: orcid bw Teixeira, Zara;
    Teixeira, Zara
    ORCID
    Derived by OpenAIRE algorithms or harvested from 3rd party repositories

    Teixeira, Zara in OpenAIRE
    Morgado, Rita; Marques, Cátia; orcid bw Gonçalves, Carlos;
    Gonçalves, Carlos
    ORCID
    Derived by OpenAIRE algorithms or harvested from 3rd party repositories

    Gonçalves, Carlos in OpenAIRE
    +3 Authors

    Dataset: Responses to two open questionnaires: Questionnaire1: "What do you know about climate change?"; Questionnaire 2: "Waht do you want to know about climate change?" Applied to middle school students, from the ages of 10 (5th grade) until the ages of 13 (8th grade), at schools "Escola Básica e Secundária Dr. Pascoal José de Mello" and "Escola Nº 2 de Avelar" from the municipality of Ansião at the central region of Portugal. The survey was applied to students both individually (n=106) and in group (n= 60), encompassing a total of 417 students. Due to logistical reasons, it was no possible to gather individual questionnaires for the 5th grade.

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    ZENODO
    Dataset . 2023
    License: CC BY
    Data sources: ZENODO
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    ZENODO
    Dataset . 2023
    License: CC BY
    Data sources: ZENODO
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    ZENODO
    Dataset . 2023
    License: CC BY
    Data sources: Datacite
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    ZENODO
    Dataset . 2023
    License: CC BY
    Data sources: Datacite
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      ZENODO
      Dataset . 2023
      License: CC BY
      Data sources: ZENODO
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      ZENODO
      Dataset . 2023
      License: CC BY
      Data sources: ZENODO
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      ZENODO
      Dataset . 2023
      License: CC BY
      Data sources: Datacite
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      ZENODO
      Dataset . 2023
      License: CC BY
      Data sources: Datacite
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    Authors: Santos, Marta Alexandra; Grandela, Afonso; Antunes, Marta A.; Quina, Ana S.; +3 Authors

    Current rising temperatures are threatening biodiversity. It is therefore crucial to understand how climate change impacts male and female fertility and whether evolutionary responses can help in coping with heat stress. We use experimental evolution to study male and female fertility during real-time evolution of two historically differentiated populations of Drosophila subobscura under different thermal selection regimes for 23 generations. We aim to (1) tease apart sex-specific differences in fertility after exposure to warming conditions during development, (2) test whether thermal selection can enhance fertility under thermal stress, and (3) address the role of historically distinct genetic backgrounds. Contrary to expectations, heat stress during development had a higher negative impact on female fertility than on male fertility. We did not find clear evidence for enhanced fertility in males or females evolving under warming conditions. Population history had a clear impact on fertility response under thermal stress, particularly in males with those from lower latitudes presenting better performance than their higher latitude counterparts. We show that the impact of thermal stress on fertility varies between traits, sexes and genetic backgrounds. Incorporating these several levels of variation is crucial for a deeper understanding of how fertility evolves under climate change. This dataset includes the raw data for the article accepted for publication in Evolution (EVO-23-0043): "Sex and population differences underlie variation in reproductive success in a warming environment.” Data correspond to a phenotypic assay performed on experimental populations after 23 generations of evolution in different thermal selection regimes. Assay included populations from 2 thermal selection regimes (warming vs controls, each three fold replicated). Adult reproductive performance (Fecundity, productivity and juvenile viability) under warming conditions (peak temperature of 29.4ºC) was assessed for couples (1 male + 1 female) of the different experimental populations in which either the male, the female or both were exposed to those same warming conditions during the developmental stage. Raw data are the individual data from each assayed couple from a given experimental population. Please see the accompanying README.md file for details on data description and structure. 

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    ZENODO
    Dataset . 2023
    License: CC 0
    Data sources: ZENODO
    DRYAD
    Dataset . 2023
    License: CC 0
    Data sources: Datacite
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      ZENODO
      Dataset . 2023
      License: CC 0
      Data sources: ZENODO
      DRYAD
      Dataset . 2023
      License: CC 0
      Data sources: Datacite
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    Authors: orcid Athanasios Ragkos;
    Athanasios Ragkos
    ORCID
    Harvested from ORCID Public Data File

    Athanasios Ragkos in OpenAIRE
    orcid Kentaro Hayashi;
    Kentaro Hayashi
    ORCID
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    Kentaro Hayashi in OpenAIRE
    orcid João Serra;
    João Serra
    ORCID
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    João Serra in OpenAIRE
    orcid Hideaki Shibata;
    Hideaki Shibata
    ORCID
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    Hideaki Shibata in OpenAIRE
    +4 Authors

    Sustainable nitrogen (N) management in agriculture is one of the most important issues affecting the environmental performance of modern agriculture. It is actually well perceived that coordinated efforts and holistic approaches are required to regulate N use by farmers. The purpose of this study was to provide an initial examination of stakeholders’ views in Japan regarding N use in agriculture and challenges to increase its sustainability. The analysis was based on a questionnaire study of five types of stakeholders (farmers, advisors, researchers, suppliers, policy makers). By means of multivariate analysis techniques it was revealed that consensus was lacking either in the acknowledgment of the causes and effects of unsustainable N management or in the challenges that need to be addressed. N losses from farms and the effects of N use were perceived but not conceived equally by all stakeholders. Organic farming and mandatory measures were the most controversial challenges, while those involving awareness, training and advisory were the most popular. This study cannot provide safe conclusions that can be generalized in the Japanese context, but it indicates domains where further research is required and orientations for future policy design towards more sustainable N use.

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    Sustainability
    Article . 2021 . Peer-reviewed
    License: CC BY
    Data sources: Crossref
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    Sustainability
    Article
    License: CC BY
    Data sources: UnpayWall
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    Sustainability
    Article . 2021
    Data sources: DOAJ
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    UTL Repository
    Article . 2021
    Data sources: UTL Repository
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      Sustainability
      Article . 2021 . Peer-reviewed
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      Sustainability
      Article
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      Sustainability
      Article . 2021
      Data sources: DOAJ
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      UTL Repository
      Article . 2021
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    Authors: orcid Nuno Carlos Leitão;
    Nuno Carlos Leitão
    ORCID
    Harvested from ORCID Public Data File

    Nuno Carlos Leitão in OpenAIRE
    Clara Contente Dos Santos Parente; orcid Daniel Balsalobre-Lorente;
    Daniel Balsalobre-Lorente
    ORCID
    Harvested from ORCID Public Data File

    Daniel Balsalobre-Lorente in OpenAIRE
    José María Cantos Cantos;

    This research studied the impacts of the environmental Kuznets curve and the determinants of economic growth for Visegrad countries from 1990 to 2018. This paper reflects on the effects of renewable and non-renewable energy, urban population, foreign direct investment, economic growth, and carbon dioxide emissions. According to our results, the panel of unit root tests showed that the variables under study are integrated into the first differences. Considering the empirical results for the environmental Kuznets curve, we observe that economic growth is positively correlated with pollution emissions; nevertheless, the squared income per capita is negatively impacted by carbon dioxide emissions. Energy consumption increases carbon emissions, and foreign direct investment confirms the pollution halo hypothesis. Therefore, the econometric results showed that renewable energy consumption promotes regional growth. Consequently, urban population and foreign direct investment positively correlate with economic growth.

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    Environmental Science and Pollution Research
    Article . 2022 . Peer-reviewed
    License: Springer Nature TDM
    Data sources: Crossref
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      Environmental Science and Pollution Research
      Article . 2022 . Peer-reviewed
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    Authors: orcid G. Rinaldi;
    G. Rinaldi
    ORCID
    Harvested from ORCID Public Data File

    G. Rinaldi in OpenAIRE
    orcid J. C. C. Portillo;
    J. C. C. Portillo
    ORCID
    Harvested from ORCID Public Data File

    J. C. C. Portillo in OpenAIRE
    F. Khalid; orcid J. C. C. Henriques;
    J. C. C. Henriques
    ORCID
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    J. C. C. Henriques in OpenAIRE
    +3 Authors

    Quantitative reliability, availability, and maintainability (RAM) assessments are of fundamental importance at the early design stages, as well as planning and operation of marine renewable energy systems. This paper presents an RAM framework adaptable to different offshore renewable technologies, conceived to provide support in the choice of the device components and subsequent planning of the O&M strategies. A case study, characterizing a pilot farm of oscillating water column (OWC) wave energy converters (WECs), is illustrated together with the method used to obtain reliable estimate of its key performance indicators (KPIs). Based on a fixed feed-in-tariff for the project, economic figures are estimated, showing a direct relationship with the availability of the farm and the cost of maintenance interventions. Consequently, the probability distributions of the most relevant output variables are presented, and the mutual correlations between them investigated using principal components analysis (PCA) with the aim of discovering the relationships influencing the performance of the offshore farm. In this way, the contributions of the individual factors on the profitability of the project are quantified, and generic guidelines to support the decision-making process are derived. It is shown how this type of analysis provides important insights not only to ocean energy farm operators after the deployment of the devices, but also to device developers at the early design stage of wave energy concepts.

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    Journal of Ocean Engineering and Marine Energy
    Article . 2018 . Peer-reviewed
    License: CC BY
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      Journal of Ocean Engineering and Marine Energy
      Article . 2018 . Peer-reviewed
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