24 documents found, page 1 of 3
Assessing nitrate groundwater hotspots in Europe reveals an inadequate designat...
Serra, J.; Marques-dos-Santos, C.; Marinheiro, J.; Cruz, S.; Cameira, M. R.; Vries, W. de; Dalgaard, T.; Hutchings, N.J.; Graversgaard, M.Monitoring networks show that the European Union Nitrates Directive (ND) has had mixed success in reducing nitrate concentrations in groundwater. By combining machine learning and monitored nitrate concentrations (1992–2019), we estimate the total area of nitrate hotspots in Europe to be 401,000 km2, with 47% occurring outside of Nitrate Vulnerable Zones (NVZs). We also found contrasting increasing or decreasin...
Tribological Performance of Gd-DLC and Eu-DLC Coatings in the Presence of Synth...
Omiya, T.; Fontes, M.; Vuchkov, T.; Cruz, S.; Carvalho, Albano Augusto Cavaleiro Rodrigues de; Ferreira, FábioThe lubrication of gadolinium-doped diamond-like carbon (Gd-DLC) and europium-doped diamond-like carbon (Eu-DLC) coatings with trihexyltetradecylphosphonium bis(2-ethylhexyl) phosphate ([P66614][DEHP]) ionic liquid (IL) as 1 wt% additive in polyalphaolefin (PAO) 8 was studied. The results of the friction tests under boundary lubrication conditions showed that Gd-DLC and Eu-DLC coatings in the presence of the IL...
Is irrigation water an overlooked source of nitrogen in agriculture?
Serra, J.; Paredes, P.; Cordovil, C. M. d S.; Cruz, S.; Hutchings, N. J.; Cameira, M. R.The increase of agricultural nitrogen (N) inputs since the 1960s is a key driver in surface- and groundwater nitrate pollution. The water abstracted from these sources can input substantial amounts of reactive nitrogen (NIrrig) if used for crop irrigation. This input is often not included in N related agricultural policies and studies, which are likely underestimating the magnitude of N pollution hotspots and o...
The concept of informal care: Ambiguities and controversies on its scientific a...
Cruz, S.; Soeiro, J.; Canha, S.; Perrotta, V.Starting from an analysis of the scientific and political uses of the concept of informal care, this paper raises questions and launches the debate on the causes and effects of its uses. Recognizing the diversity and the contradictions found across the use of the term, it explains how its predominant use in Europe can be problematic. First, although it is widely recognized that care is provided primarily by wom...
Using emoji in response to customer reservation requests and service reviews
Prada, M.; Saraiva, M.; Cruz, S.; Xavier, S.; Rodrigues, D. L.The use of paralinguistic cues—including emoji—in computer-mediated communication has become prevalent in recent years. Brands and service providers have also been using these cues in their communication strategies. And yet, research examining how such emoji use influences customers’ perception and behavior is still scarce. In two experiments (combined ), we tested if using emoji to reply to a customer request ...
A organização de eventos científicos em tempos de pandemia: o caso do EJML - En...
Carvalho, Ana A.; Moura, A.; Marques, C. G.; Guimarães, D.; Santos, I. L.; Araújo, I.; Cruz, S.1818-1D13-CA36 | Célio Gonçalo Cardoso Marques; info:eu-repo/semantics/publishedVersion
Search for a heavy Higgs boson decaying to a pair of W bosons in proton-proton ...
Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Bergauer, T.; Brandstetter, J.; Dragicevic, M.; Eroe, J.; Del Valle, A. Escalante; Flechl, M.Made available in DSpace on 2020-12-11T10:42:57Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-03-06; BMBWF (Austria); FWF (Austria); FNRS (Belgium); FWO (Belgium); Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ); FAPERGS (Brazil); Fundação de Ampa...
Search for new neutral Higgs bosons through the H -> ZA -><mml:msup>l+</mml:msu...
Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Bergauer, T.; Brandstetter, J.; Dragicevic, M.; Eroe, J.; Del Valle, A. Escalante; Flechl, M.Made available in DSpace on 2020-12-11T11:18:25Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-03-10; BMBWF (Austria); FWF (Austria); FNRS (Belgium); FWO (Belgium); Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ); FAPERGS (Brazil); Fundação de Ampa...
Measurement of top quark pair production in association with a Z boson in proto...
Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Bergauer, T.; Brandstetter, J.; Dragicevic, M.; Eroe, J.; Del Valle, A. Escalante; Flechl, M.Made available in DSpace on 2020-12-11T11:35:08Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-03-10; BMBWF (Austria); FWF (Austria); FNRS (Belgium); FWO (Belgium); Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ); FAPERGS (Brazil); Fundação de Ampa...
Meta-analysis of a very low proportion through adjusted wald confidence intervals
Afreixo, V.; Cruz, S.; Freitas, A.; Hernandez, M. A.In this paper we will discuss the meta-analysis of one low proportion. It is well known, that there are several methods to perform the meta-analysis of one proportion, based on a linear combination of proportions or transformed proportions. However, in the context of a linear combination of binomial proportions has been proposed some approximate estimators with some improvements on low proportion estimation. In...