12 documents found, page 1 of 2
Abdominal compartment syndrome after endovascular treatment of ruptured abdomin...
Oliveira Pinto, José; Sá, Pedro; Sousa, Joel; Mansilha, ArmandoINTRODUCTION Abdominal compartment syndrome (ACS), defined as intra-abdominal pressure (IAP) greater than 20 mm Hg that is associated with new organ dysfunction/failure, represents na uncommon but hazardous complication after endovascular aneurysm repair for ruptured abdominal aortic aneurysms (r-EVAR). The aim of this review is to overview incidence, mortality and potential benefit of expedite treatment of ACS...
MAMMALS IN PORTUGAL: A data set of terrestrial, volant, and marine mammal occur...
Grilo, Clara; Afonso, Beatriz C.; Afonso, Filipe; Alexandre, Marta; Aliácar, Sara; Almeida, Ana; Alonso, Ivan Prego; Álvares, Francisco; Alves, PauloMammals are threatened worldwide, with 26% of all species being included in the IUCN threatened categories. This overall pattern is primarily associated with habitat loss or degradation, and human persecution for terrestrial mam mals, and pollution, open net fishing, climate change, and prey depletion for marine mammals. Mammals play a key role in maintaining ecosystems func tionality and resilience, and theref...
MAMMALS IN PORTUGAL : A data set of terrestrial, volant, and marine mammal occu...
Grilo, Clara; Afonso, Beatriz C.; Afonso, Filipe; Alexandre, Marta; Aliácar, Sara; Almeida, Ana; Alonso, Ivan Prego; Álvares, Francisco; Alves, PauloMammals are threatened worldwide, with 26% of all species being includedin the IUCN threatened categories. This overall pattern is primarily associatedwith habitat loss or degradation, and human persecution for terrestrial mam-mals, and pollution, open net fishing, climate change, and prey depletion formarine mammals. Mammals play a key role in maintaining ecosystems func-tionality and resilience, and therefore...
MAMMALS in Portugal: A data set of terrestrial, volant, and marine mammal occur...
Grilo, Clara; Afonso, Beatriz C.; Afonso, Filipe; Alexandre, Marta; Aliácar, Sara; Almeida, Ana; Alonso, Ivan Prego; Álvares, Francisco; Alves, PauloMammals are threatened worldwide, with 26% of all species being includedin the IUCN threatened categories. This overall pattern is primarily associatedwith habitat loss or degradation, and human persecution for terrestrial mam-mals, and pollution, open net fishing, climate change, and prey depletion formarine mammals. Mammals play a key role in maintaining ecosystems func-tionality and resilience, and therefore...
Properties of Electrospun TiO2Nanofibers
Caratão, Bianca; Carneiro, Edgar; Sá, Pedro; Almeida, Bernardo; Carvalho, SandraTitaniumoxide filled polyvinylpyrrolidone (PVP) composite nanofibers have been prepared via a simple electrospinning technique. The combination of good TiO2 properties with its high surface area leads these nanofibers into having a vast applicability such as cosmetics, scaffolds for tissue engineering, catalytic devices, sensors, solar cells, and optoelectronic devices. The structural and chemical properties of...
Synthesis, structural and magnetic characterization of lead-metaniobate/cobalt-...
Sá, Pedro; Barbosa, J.; Gomes, Isabel T.; Mendes, Jorge A.; Ventura, João; Araújo, João P.; Almeida, B. G.Detailed structural, microstructural and magnetic measurements were performed on (PbNb2O6)(1-x) -(CoFe2O4) (x) nanocomposite thin films deposited by laser ablation on Si(001)\Pt substrates, with different cobalt ferrite concentrations. The tuning of the lead concentration, due to the lead volatility, was found to be particularly important in order to obtain the orthorhombic (ferroelectric) lead niobate phase. T...
Copepod production estimated by combining in situ data and specific temperature...
Leandro, Sérgio Miguel; Tiselius, Peter; Marques, Sónia Cotrim; Avelelas, Francisco; Correia, Catarina; Sá, Pedro; Queiroga, HenriqueAlthough growth in adult copepods is frequently assumed to be similar to juvenile growth, some evidence have pointed out that under in situ conditions, it can be lower, with, as a consequence, underestimation of secondary production. In addition, under field conditions, juvenile growth in copepods is close to maximum rates estimated at food-saturated conditions. Based on previous assumptions, this study aimed t...
Ferroelectric characterization of aligned barium titanate nanofibres
Sá, Pedro; Barbosa, José Gusman; Bidkin, Igor; Almeida, B. G.; Rolo, Anabela G.; Gomes, E. Matos; Belsley, M.; Kholkin, Andrei L.; Isakov, D. V.We report the synthesis, structural and ferroelectric characterization of continuous well-aligned nanofibres of barium titanate produced by the electrospinning technique. The fibres with average diameter of 150–400 nm consist of connected nanoparticles of BaTiO 3 stacked together to form the shape of a long filament. The tetragonal phase in the obtained nanofibres was revealed by the x-ray diffraction and Raman spe...
Simple way to make Anatase TiO2 films on FTO glass for promising solar cells
Raghavender, A. T.; Samantilleke, A. P.; Sá, Pedro; Almeida, B. G.; Vasilevskiy, Mikhail; Nguyen Hoa HongTiO2 is a wide bandgap semiconductor material used as the photo anode in dye sensitized solar cells (DSSC). The fabrication of TiO2 on conductive glass substrates plays an important role in the solar cell efficiency, since the thickness of the TiO2 coating affects the transmission, photoconductive properties and the efficiency of solar cells. The uncorrected transmission in our fabricated films is as high as 80...
Production and PFM characterization of barium titanate nanofibers
Sá, Pedro; Bdikin, Igor; Almeida, B. G.; Rolo, Anabela G.; Isakov, D. V.Continuous nanofibers of barium titanate (BaTiO3) with average diameter of 150–300 nm have been produced by means of mutual sol-gel and electrospinning routines with subsequent calcination step. The structural characterization of the obtained nanofibers has been performed by XRD and Raman spectroscopy. Their individual grain and domain structures were studied by piezoresponse force microscopy (PFM). The results...