R. Pacheco

Publications44
h-index12
Citations706
Highly Influential Citations40
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The QUEST RR Lyrae Survey: Confirmation of the Clump at 50 Kiloparsecs and Other Overdensities in the Outer Halo
We have measured the periods and light curves of 148 RR Lyrae variables from V = 13.5 to 19.7 from the first 100 deg2 of the Quasar Equatorial Survey Team RR Lyrae survey. Approximately 55% of these… Expand
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Wild birds as biological indicators of environmental pollution: antimicrobial resistance patterns of Escherichia coli and enterococci isolated from common buzzards (Buteo buteo).
A total of 36 Escherichia coli and 31 enterococci isolates were recovered from 42 common buzzard faecal samples. The E. coli isolates showed high levels of resistance to streptomycin and… Expand
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Molecular characterization of vancomycin-resistant enterococci and extended-spectrum β-lactamase-containing Escherichia coli isolates in wild birds from the Azores Archipelago
To study the prevalence of vancomycin-resistant enterococci (VRE) and extended-spectrum β-lactamase (ESBL)-containing Escherichia coli isolates, and the mechanisms of resistance implicated, 220… Expand
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Influence of technological variables on release of drugs from hydrophilic matrices
AbstractHydrophilic matrices are an interesting option when developing an oral sustained-release formulation. Entering the field of pharmaceutical technology almost 40 years ago, they have been… Expand
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Antimicrobial resistance in faecal enterococci and Escherichia coli isolates recovered from Iberian wolf
The aim of this study was to report the antimicrobial resistance, the molecular mechanisms associated and the detection of virulence determinants within faecal Enterococcus spp. and Escherichia coli… Expand
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Detection of antibiotic resistant enterococci and Escherichia coli in free range Iberian Lynx (Lynx pardinus).
Thirty fecal samples from wild specimens of Iberian lynx were collected and analyzed for Enterococcus spp. (27 isolates) and Escherichia coli (18 isolates) recovery. The 45 isolates obtained were… Expand
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High prevalence of ESBL-producing Escherichia coli isolates among hemodialysis patients in Portugal: appearance of ST410 with the bla(CTX-M-14) gene.
Ten extended-spectrum β-lactamase-producing Escherichia coli isolates were detected among 121 fecal samples (8.3%) recovered from hemodialysis patients in Portugal. The isolates harbored the… Expand
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Biodesulphurization of fossil fuels: energy, emissions and cost analysis
In order to achieve stringent environmental and safety requirements, refineries are in search of “green” and cost-effective methods for crude oil desulphurization. Combined desulphurization… Expand
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The production of pigments & hydrogen through a Spirogyra sp. biorefinery.
Abstract This paper discusses the overall energy consumption and greenhouse gas emissions when extracting pigments and producing hydrogen from Spirogyra sp. microalga biomass. The energy evaluation… Expand
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Molecular characterization of vanA-containing Enterococcus from migratory birds: song thrush (Turdus philomelos)
Vancomycin-resistant enterococci (VRE) were detected in two faecal samples (1.3%) of song thrush in Portugal. vanA isolates showed high level vancomycin/teicoplanin resistance, as well as resistance… Expand
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