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As vicissitudes do matar. Conflitos ontológicos em um estudo sobre leishmaniose tegumentar americana na TI Wajãpi
Get PDFA partir de uma pesquisa sobre os padrões epidemiológicos de leishmaniose tegumentar americana na Terra Indígena Wajãpi (AP), tomo como ponto de partida as perspectivas de alguns Wajãpi e de cientistas para explorar aspectos das ontologias em disputas nesse contexto. Oscilando entre os diferentes sujeitos dessa pesquisa, pretendo refletir e descrever como cada um deles compreende questões comuns como: a matabilidade de alguns seres, as relações com diferentes níveis de alteridade e as perspectivas das relações interespecíficas265
The free movement of people around the world would be Utopian: IUAES World Congress 2013: Evolving Humanity, Emerging Worlds, 5–10 August 2013
No full textThis article contains the text and discussion of a debate held at the IUAES World Congress in Anthropology at Manchester University in 2013. The motion was proposed by Bela Feldman-Bianco (State University of Campinas), seconded by Noel Salazar (University of Leuven) and was opposed by Shahram Khosravi (Stockholm University), seconded by Nicholas de Genova (then at Goldsmiths' College). The debate was chaired by Simone Abram (Durham University)24212315
Captive and free-living urban pigeons (Columba livia) from Brazil as carriers of multidrug-resistant pathogenic Escherichia coli
No full textThirty Escherichia coli isolates from captive and free-living pigeons in Brazil were characterised. Virulence associated genes identified in pigeons included those which occur relatively frequently in avian pathogenic E. colt (APEC) from commercial poultry worldwide. Eleven of 30 E. coli isolates from pigeons, belonging mainly to B1 and B2 phylogenetic groups, had high or intermediate pathogenicity for 1-day-old chicks. The frequency of multi-drug resistant (MDR) E. colt in captive pigeons was relatively high and included one isolate positive for the extended-spectrum beta-lactamase (ESBL) gene bla(CTX-M-8). Pulsed field gel electrophoresis (PFGE) showed high heterogeneity among isolates. There is potential for pigeons to transmit antibiotic resistant pathogenic E. colt to other species through environmental contamination or direct contact2196567FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP2008/00417-0; 2010/12002-0; 2011/06467-
Degradation of benzimidazoles by photoperoxidation: metabolites detection and ecotoxicity assessment using raphidocelis subcapitata microalgae and vibrio fischeri
No full textBenzimidazoles (BZ) are among the most used drugs to treat parasitic diseases in both human and veterinary medicine. In this study, solutions fortified with albendazole (ABZ), fenbendazole (FBZ), and thiabendazole (TBZ) were subjected to photoperoxidation (UV/H2O2). The hydroxyl radicals generated by the process removed up to 99% of ABZ, and FBZ, in the highest dosage of H2O2 (i.e., 1.125 mmol L-1; 4.8 kJ L-1). In contrast, 20% of initial TBZ concentration remained in the residual solution. In the first 5 min of reaction (i.e., up to 0.750 mmol L-1 of H2O2), formation of the primary metabolites of ABZ—ricobendazole (RBZ), albendazole sulfone (ABZ-SO2), and oxfendazole (OFZ)—was observed. However, these reaction products were converted after the reaction time was doubled. The residual ecotoxicity was investigated using the Raphidocelis subcapitata microalgae and the marine bacteria Vibrio fischeri. The results for both microorganisms evidence that the residual solutions are less harmful to these microorganisms. However, after 30 min of reaction, the treated solution still presents a toxic effect for V. fischeri, meaning that longer reaction times are required to achieve an innocuous effluentCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQCOORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPES154061/2018-2não tem2013/09543-7; 2018/03571-2; 2014/50951-
Measuring the conductivity of very dilute electrolyte solutions, drop by drop
No full textFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPUndergraduate experiments on ionic conductivity are common practice in general chemistry and advanced physical chemistry laboratories. Often, the conductivities are measured for solutions prepared for various salts, in a range of concentrations, and the r417814817FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP2010/16947-92013/05475-72013/08293-7The author thanks the financial support of FAPESP (Grants 2010/16947-9, 2013/05475-7, and 2013/08293-7
Electrolyte and mineral composition of term donor human milk before and after pasteurization and of raw milk of preterm mothers
No full textDeterminar e comparar as concentrações de eletrólitos e minerais no leite humano em três grupos: amostras analisadas antes e após pasteurização de lactantes doadoras a termo e amostra de leite cru colhida à beira do leito de mães de recém-nascidos pré-ter36217SEM INFORMAÇÃOSEM INFORMAÇÃ
Photoluminescence of solvent-selected fluorescent moieties in MEH-PPV solutions and films
No full textFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE GOIÁS - FAPEGCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPIn this work, we examined how photoluminescence in poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) is affected by morphology, dictated by the mode of preparation. For that, MEH-PPV dilute solutions in good and non-solvents, thick cast293543559FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE GOIÁS - FAPEGCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE GOIÁS - FAPEGCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP201410267000521552252/2011-5407619/2013-52013/08293-7The authors thank Prof Teresa Atvars for the fluorescence lifetime measurements, LabMic/UFG (Universidade Federal de Goiás) for TEM images and GCM/IF/UFG for steady-state fluorescence measurements. T. D. Martins, A. C. C. Ribeiro and H. S. Camargo would
The role of lignin in polypropylene composites with semi-bleached cellulose fibers: Mechanical properties and its activity as antioxidant
No full textFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPReports on the use of bleached Eucalyptus cellulose as a reinforcing agent for polypropylene and on the use of lignin, from Eucalyptus and other vegetal species, as a stabilizer for different polymers can be found in the scientific literature. This work f1082334FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP2010/17804-7The authors thank Fundação de Amparo a Pesquisa do Estado de São Paulo for a grant (2010/17804-7), Suzano Pulp and Paper for supplying the fiber pellets and Braskem for the polypropylene sample. The authors are indebted to the Brazilian Nanotechnology Na
Broad-spectrum bioactivities of silver nanoparticles: the emerging trends and future prospects
No full textThere are alarming reports of growing microbial resistance to all classes of antimicrobial agents used against different infections. Also the existing classes of anticancer drugs used against different tumours warrant the urgent search for more effective981951196
Tailored silica–antibiotic nanoparticles: Overcoming bacterial resistance with low cytotoxicit
No full textCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPNew and more aggressive antibiotic resistant bacteria arise at an alarming rate and represent an ever-growing challenge to global health care systems. Consequently, the development of new antimicrobial agents is required to overcome the inefficiency of co302574567464CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPSEM INFORMAÇÃO2011/21954-7L.B.C. thanks CNPq for the fellowship granted. M.B.C. would like to thank Fapesp (Project Number: 2011/21954-7), and all authors acknowledge LNLS for all financial support along this work. We acknowledge LNLS (CNPEM – Brazil) for SAXS measurements (propo