Search Results - "BETTINI, J"

Catalysts for oxygen reduction reaction based on nanocrystals of a Pt or Pt–Pd alloy shell supported on a Au core by Venarusso, L. B., Bettini, J., Maia, G.

“…Nanocrystals (NCs) of a Pt or Pd or Pt–Pd alloy shell supported on a Au core were synthesized and dripped onto a glassy carbon (GC) surface to generate thin…”
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Nanosized precipitates in H13 tool steel low temperature plasma nitriding by Zagonel, L.F., Bettini, J., Basso, R.L.O., Paredez, P., Pinto, H., Lepienski, C.M., Alvarez, F.

“…A comprehensive study of pulsed nitriding in AISI H13 tool steel at low temperature (400°C) is reported for several durations. X-ray diffraction results reveal…”
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Observation of the smallest metal nanotube with a square cross-section by Ugarte, D, Lagos, M. J, Sato, F, Bettini, J, Rodrigues, V, Galvão, D. S

“…Understanding the mechanical properties of nanoscale systems requires a range of measurement techniques and theoretical approaches to gather the relevant…”
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Experimental realization of suspended atomic chains composed of different atomic species by Galvão, D. S, Bettini, J, Sato, F, Coura, P. Z, Dantas, S. O, Ugarte, D

“…Research into nanostructured materials frequently relates to pure substances. This contrasts with industrial applications, where chemical doping or alloying is…”
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Indication of unusual pentagonal structures in atomic-size Cu nanowires by GONZALEZ, J. C, RODRIGUES, V, BETTINI, J, REGO, L. G. C, ROCHA, A. R, COURA, P. Z, DANTAS, S. O, SATO, F, GALVAO, D. S, UGARTE, D

“…We present a study of the structural and quantum conductance properties of atomic-size copper nanowires generated by mechanical stretching. The atomistic…”
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Intrinsic stability of the smallest possible silver nanotube by Autreto, P A S, Lagos, M J, Sato, F, Bettini, J, Rocha, A R, Rodrigues, V, Ugarte, D, Galvao, D S

“…Recently, Lagos et al. [Nature Nanotech. 4, 149 (2009)] reported the discovery of the smallest possible Ag nanotube with a square cross section. Ab initio…”
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Transmission electron microscopy and molecular dynamics study of the formation of suspended copper linear atomic chains by Sato, F., Moreira, A. S., Bettini, J., Coura, P. Z., Dantas, S. O., Ugarte, D., Galvão, D. S.

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Real-time atomic resolution study of metal nanowires by Bettini, J., Rodrigues, V., González, J.C., Ugarte, D.

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Association of Tumor Necrosis Factor a-2 and a-8 Microsatellite Alleles with Human Papillomavirus and Squamous Intraepithelial Lesions among Women in Brazil by Simões, R. T, Gonçalves, M. A. G, Donadi, E. A, Simões, A. L, Bettini, J. S. R, Duarte, G, Quintana, S. M, Carvalho, M. W. P, Soares, E. G

“…Infection with oncogenic human papillomavirus (HPV) is considered to be the major risk factor for cervical cancer. Tumor necrosis factor (TNF) is a pluripotent…”
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Mechanism of lateral ordering of InP dots grown on InGaP layers by Bortoleto, J. R. R., Gutiérrez, H. R., Cotta, M. A., Bettini, J.

“…The mechanisms leading to the spontaneous formation of a two-dimensional array of In P ∕ In Ga P dots grown by chemical-beam epitaxy are discussed. Samples…”
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Lung diffusion capacity and quality of life 6 months after discharge from the ICU among survivors of acute respiratory distress syndrome due to influenza A H1N1 by Quispe-Laime, A M, Fiore, C, González-Ros, M N, Bettini, J E, Rolfo, V E, Campagne, C G, Barberio, P A

“…An evaluation is made of lung function and quality of life 6 months after discharge from the Intensive Care Unit (ICU) among survivors of acute respiratory…”
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Evidence of formation of Si-C bonds during growth of Si-doped III-V semiconductor compounds by Bettini, J., de Carvalho, M. M. G

“…In this work, we demonstrate that Si-C bonds are formed in III-V semiconductor compounds grown by chemical beam epitaxy. Our results suggest that the formation…”
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Spatial ordering in InP/InGaP nanostructures by Bortoleto, J. R. R., Gutiérrez, H. R., Cotta, M. A., Bettini, J., Cardoso, L. P., de Carvalho, M. M. G.

“…We report the observation of a spatially-ordered bidimensional array of self-assembled InP quantum dots grown on slightly In-rich InGaP layers. The alignment…”
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Langerhans’ cell count and HLA class II profile in cervical intraepithelial neoplasia in the presence or absence of HIV infection by Gonçalves, M.A.G, Soares, E.G, Fernandes, A.P.M, Fonseca, B.A.L, Bettini, J.S.R, Simões, R.T.S, Donadi, E.A

“…Objectives: The progression of immunosuppression in human immunodeficiency virus (HIV)+ women has been correlated with elevated incidence of squamous…”
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Role of V/III ratio on atomic ordering and surface morphology of InGaP layers grown by chemical beam epitaxy by Bettini, J., de Carvalho, M.M.G., Cotta, M.A., Ugarte, D.

“…In this work, the ordering of In 0.5Ga 0.5P layers grown by chemical beam epitaxy on GaAs(0 0 1) substrates was studied as a function of V/III ratio. Samples…”
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Estimating strategic responses to the march of a low cost carrier to primary airports by Bettini, Humberto F.A.J., Silveira, José Maria F.J., Oliveira, Alessandro V.M.

“…•We study the capacity formation of incumbent airlines of a multiple airports region.•We analyze a “march” of an LCC from a secondary to the existing primary…”
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Two-sided platforms in airport privatization by Bettini, Humberto F.A.J., Oliveira, Alessandro V.M.

“…•The recent literature has adopted the concept of two-sided platforms to describe the role of airports in the modern air transport industry.•We investigate…”
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Residual carbon and carrier concentration in InGaP layers grown by chemical beam epitaxy by Bettini, J., de Carvalho, M.M.G., Pudenzi, M.A.A., Laureto, E., Meneses, E.A.

“…In this work we present a study on the carbon incorporation in InGaP layers grown by Chemical Beam Epitaxy as a function of growth temperature. Hall…”
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Strong spatial beryllium doping selectivity on InGaP layers grown on pre-patterned GaAs substrates by chemical beam epitaxy by de Castro, M.P.P., von Zuben, A.A., Frateschi, N.C., Santo, L.L.E., Galvão, D.S., Bettini, J., de Carvalho, M.M.G.

“…We present an investigation of beryllium doping selectivity in InGaP layers grown by chemical beam epitaxy on pre-patterned substrates. We observed a…”
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Evidence for spontaneous spin-polarized transport in magnetic nanowires by Rodrigues, Varlei, Bettini, Jefferson, Silva, Paulo C, Ugarte, Daniel

“…The exploitation of the spin in charge-based systems is opening revolutionary opportunities for device architecture. Surprisingly, room temperature electrical…”
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