37 documents found, page 1 of 4
Importance of climate change manifestations and urban green areas on the potent...
Barbosa, Rui; Monteiro, Ana; Freitas, MarisaUrban development combined with climate change can trigger negative effects in the ecosystems. Although the recognized environmental benefits, the implementation of urban green areas can increase the number of habitats favorable to the spread of ixodid vectors, as well as to increase its contact with humans and animals, which may constitute a public health problem. Nowadays, to increase the effectiveness of hea...
Honey from natural park of Montesinho: insights from DNA extraction methodology...
Soares, Sónia; Magalhães, Leandro; Barbosa, Rui; Delerue-Matos, CristinaHoney is a sweet natural substance produced by bees from the nectar of plants and/or secretions of living parts of plants. It consists essentially of simple sugars (68%) and water (18%) and smaller quantities of other components such as vitamins, minerals, proteins, organic acids, phenolic compounds, among others. Those are highly dependent of the botanical species visited by bees, conferring to each honey diff...
New approaches for the study of faience using beads from Southern Portugal
Costa, Mafalda; Barrulas, Pedro; Arruda, Ana Margarida; Barbosa, Rui; Vandenabeele, Peter; Mirão, JoséA collection of 30 faience beads recovered from the Iron Age necropolis of Vinha das Caliças 4 (Beja, Portugal) was analyzed in order to identify their production technology and provide insights into their possible provenance. The multi-analytical approach employed, combining laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), variable pressure scanning electron microscope coupled with ener...
New approaches for the study of faience using beads from Southern Portugal
Costa, Mafalda; Barrulas, Pedro; Arruda, Ana Margarida; Barbosa, Rui; Vandenabeele, Peter; Mirão, JoséA collection of 30 faience beads recovered from the Iron Age necropolis of Vinha das Caliças 4 (Beja, Portugal) was analyzed in order to identify their production technology and provide insights into their possible provenance. The multi-analytical approach employed, combining laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), variable pressure scanning electron microscope coupled with ener...
Recomendação aos magistrados
Barbosa, RuiSubmitted by phemiran@stj.jus.br (phemiran@stj.jus.br) on 2021-11-12T18:13:46Z No. of bitstreams: 2 recomendacao_magistrados_barbosa.pdf: 249503 bytes, checksum: e0aa118db48253859b0e0f448e13127f (MD5) license.txt: 1239 bytes, checksum: c9b4c351324448672315a00808efb725 (MD5); Approved for entry into archive by betanial@stj.jus.br (betanial@stj.jus.br) on 2021-11-17T10:58:03Z (GMT) No. of bitstreams: 2 recomendac...
An insight into the provenance of the Phoenician-Punic glass beads of the necro...
Costa, Mafalda; Barrulas, Pedro; Arruda, Ana Margarida; Dias, Luís; Barbosa, Rui; Vandenabeele, Peter; Mirão, JoséPhoenician-Punic glass beads recovered from the necropolis of Vinha das Caliças 4 (Beja, Portugal), dated to the Iron Age, were studied by variable pressure scanning electron microscopy coupled with energy dispersive X-ray spectroscopy (VP-SEM–EDS) and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). All glass was found to be soda-lime-silica natron-based glass. Trace element and rare ea...
International Trade and Structural Unemployment: Evidence from the OECD countries
Barbosa, Rui; Ferreira, Francisco; Fernandes, Ricardo; Vilela, AndréThis paper seeks to investigate the possible relationship between a country’s structural rate of unemployment and its relative openness to international trade. To that end, we regress a data panel of unemployment and trade openness for the 36 member-states of the OECD, controlling for business cycle and labor market structure effects. No evidence that higher openness to international trade has unemployment incr...
The combined use of Raman and micro‐X‐ray diffraction analysis in the study of ...
Costa, Mafalda; Arruda, Ana Margarida; Dias, Luís; Barbosa, Rui; Mirão, José; Vandenabeele, PeterThis study proposes a new nondestructive methodology that combines micro‐Raman spectroscopy and micro‐X‐ray diffraction (μ‐XRD), complemented by variable pressure scanning electron microscopy coupled with energy dispersive X‐ray spectrometry, to determine the composition of glass artifacts and the manufacturing techniques employed in their production. The use of micro‐Raman spectroscopy revealed that most sampl...
A Micro-Analytical Study of the Scarabs of the Necropolis of Vinha das Caliças ...
Costa, Mafalda; Arruda, Ana Margarida; Barbosa, Rui; Barrulas, Pedro; Vandenabeele, Peter; Mirão, JoséFive scarabs and one scaraboid found in Vinha das Caliças 4 (Beja, Portugal) were analyzed using a micro-analytical methodology in order to determine their mineralogical and chemical composition. Microstructural characterization and chemical analysis revealed that all were composed of a white body of crushed feldspathic sand covered by a lead-rich, alkaline-depleted silicate blue-green glaze showing evident sig...
The combined use of Raman and micro-X-ray diffraction analysis in the study of ...
Costa, Mafalda; Arruda, Ana Margarida; Dias, Luís; Barbosa, Rui; Mirão, José; Vandenabeele, PeterThis study proposes a new nondestructive methodology that combines micro‐Raman spectroscopy and micro‐X‐ray diffraction (μ‐XRD), complemented by variable pressure scanning electron microscopy coupled with energy dispersive X‐ray spectrometry, to determine the composition of glass artifacts and the manufacturing techniques employed in their production. The use of micro‐Raman spectroscopy revealed that most sampl...