10 documents found, page 1 of 1
Optimising Legume Integration, Nitrogen Fertilisation, and Irrigation in Semi-A...
Silva, L.; Barbosa, S.; Lidón, F. C.; Maçãs, B.; Faugno, S.; Sannino, M.; Serrano, J.; D'Antonio, P.; Fiorentino, C.; Cellini, F.; Ferreira, P.Monoculture systems depend on high nitrogen (N) fertilisation. Incorporating leg umes into forage crops offers a sustainable alternative with agronomic and economic benefits. This study assesses the impact of legumes in fodder systems, evaluating yield, N use efficiency (NUE), and profitability while identifying the best cropping strategy under semi-arid conditions. The experiment, conducted at Herdade da Comen...
Antimicrobial activity of fruit packages coated with nanomaterials based in met...
Rodrigues, F. C.; Barbosa, S.; Pontes, A. J.; Fonseca, António; Almeida Aguiar, Cristina; Neves, Isabel C.The transport and storage of fruits is frequently compromised by microbial contaminations, especially during the delivery of these perishable foods to the public. The development of smart packages against microbial contaminations is an alternative of great interest to help controlling post-harvest diseases. The incorporation of nanomaterials, such as metal-ions zeolites with antimicrobial properties, in the sem...
Tears evoke the intention to offer social support: A systematic investigation o...
Zickfeld, J. H.; Van de Ven; N.; Pich, O.; Schubert, T. W.; Berkessel, J. B.; Pizarro, J.; Bhushan, B.; Mateo, N. J.; Barbosa, S.; Sharman, L.Tearful crying is a ubiquitous and likely uniquely human phenomenon. Scholars have argued that emotional tears serve an attachment function: Tears are thought to act as a social glue by evoking social support intentions. Initial experimental studies supported this proposition across several methodologies, but these were conducted almost exclusively on participants from North America and Europe, resulting in lim...
Proteic and phenolics compounds contents in Bacupari callus cultured with gluta...
Marques, H. P.; Barbosa, S.; Nogueira, D. A.; Santos, M. H.; Santos, B. R.; Santos-Filho, P. R.Volume e série não informados.; Nesse estudo foi avaliado o efeito da suplementação com glutamina no conteúdo endógeno de aminoácidos, proteínas, fenólicos totais, flavonoides e proantocianidinas em calos de Bacupari. Os explantes foram inoculados em meio MS, meio MS com metade da concentração de dos sais de nitrogênio (MS½) e meio MS sem nitrogênio suplementado com glutamina (5, 10, 30 e 60mM) denominados como...
Efeitos da dispersão e deposição de arsénio, cobre, chumbo e zinco na zona envo...
Pelica, J.; Barbosa, S.; Calvão, T.; Lidon, F.; Pessoa, F.; Reboredo, F.A região de Neves-Corvo (37°34'13,5"N, 7°58’19,1”O) possui o mais importante depósito de cobre de Portugal, sendo ainda um dos maiores do mundo. Situada a 15 km de Castro Verde, no Baixo Alentejo, esta mina produz essencialmente cobre, estanho e zinco. A mineração constitui uma atividade extremamente poluente alterando a composição da atmosfera, do solo, e águas quer subterrâneas ou superficiais. O objetivo des...
Técnicas de mapeamento de parâmetros de qualidade dos solos
Almeida, J.; Barbosa, S.A qualidade dos solos depende de vários parâmetros que podem ser agrupados em visuais, físicos, químicos e biológicos. Os parâmetros visuais são avaliados por fotografia aérea e incluem o declive, a exposição e a cor do solo; os físicos quantificam o arranjo das partículas e dos vazios, como a porosidade, a condutividade, e ocorrências minerais; são exemplo de parâmetros químicos o pH e os teores de elementos q...
Interactions lake-atmosphere: the ALEX 2014 field campaign and numerical simula...
Salgado, R.; Potes, M.; Albino, A.; Apolinário, J.; Barbosa, S.; Bárias, S.; Beliche, P.; Bortoli, D.; Canhoto, P.; Costa, M. J.; Fernandes, R.M.The ALqueva hydro-meteorological EXperiment, ALEX 2014, was an integrated field campaign with measurements of chemical, physical and biological parameters in water and air at different experimental sites in the region of the Alqueva reservoir, a 250 km2 man made lake, in the southeast of Portugal. The Field campaign took place from June 1 to September 30, 2014 and comprises an Intensive Observation Period (IOP)...
The Alqueva hydro-meteorologic experiment
Salgado, R.; Potes, M.; Albino, A.; Apolinário, J.; Barbosa, S.; Bárias, S.; Beliche, P.; Bortoli, D.; Canhoto, P.; Costa, M. J.; Fernandes, R.M.The ALqueva hydro-meteorological experiment, ALEX 2014 (http://www.alex2014.cge.uevora.pt) was an integrated field campaign with measurements of chemical, physical and biological parameters at different experimental sites in the Alqueva reservoir and in its surrounding region. With the main purpose of studing the lake-atmosphere interactions, the ALEX 2014 took place form June to September and comprised a three...
Uranium mining in Portugal: a review of the environmental legacies of the large...
Pereira, R.; Barbosa, S.; Carvalho, F. P.The history of uranium mining in Portugal during almost one century has followed international demand peaks of both radium and uranium, which in turn were driven by medical, military, and civil applications. Nowadays, following price drop in the 1980s, mining activities decreased and ceased in 2001. The current challenge is to deal with environmental legacies left by old uranium mines, mainly located in Viseu a...
Trends in ozone concentrations in the Iberian Peninsula by quantile regression ...
Monteiro, A.; Carvalho, A.; Ribeiro, I.; Scotto, M.; Barbosa, S.; Alonso, A.; Baldasano, J. M.; Pay, M. T.; Miranda, A. I.; Borrego, C.In this paper, 10-years of ozone (O3) hourly concentrations collected over the period 2000–2009 in the Iberian Peninsula (IP) are analyzed using records from 11 background sites. All the selected monitoring stations present an acquisition efficiency above 85%. The changes in surface ozone over the Iberian Peninsula are examined by means of quantile regression, which allows to analyse the trends not only in the ...