24 research outputs found
Leishmaniose visceral no municÃpio de Várzea Grande, Estado de Mato Grosso, no perÃodo de 1998 a 2007
Analysis of sandflies (Diptera: Psychodidae) in Barra do Garças, State of Mato Grosso, Brazil, and the influence of environmental variables on the vector density of Lutzomyia longipalpis (Lutz & Neiva, 1912)
Desigualdades sociais e uso de serviços de saúde: evidências de análise estratificada
Inquérito soroepidemiológico de leishmaniose canina em áreas endêmicas de Cuiabá, Estado de Mato Grosso
PERIODIC REVIEW SYSTEM FOR INVENTORY REPLENISHMENT CONTROL FOR A TWO-ECHELON LOGISTICS NETWORK UNDER DEMAND UNCERTAINTY: A TWO-STAGE STOCHASTIC PROGRAMING APPROACH
Série temporal da leishmaniose visceral em Aracaju, estado de Sergipe, Brasil (1999 a 2008): aspectos humanos e caninos
Temporal, spatial and spatiotemporal analysis of the occurrence of visceral leishmaniasis in humans in the City of Birigui, State of São Paulo, from 1999 to 2012
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Electron interaction with dimethyl disulfide in the low- and intermediate-energy range
We report a joint theoretical-experimental investigation on elastic electron scattering by dimethyl disulfide in the low- and intermediate-energy regions. Experimental angular distributions of the elastically scattered electrons were measured in the 10-800 eV and 5°-130° ranges using a crossed electron beam-molecular beam geometry. The absolute values of the differential cross sections were obtained using the relative-flow technique. Also, integral and momentum-transfer cross sections were derived from the experimental differential cross sections via a numerical integration procedure. Theoretically, differential, integral, momentum-transfer, grand-total, and total absorption cross sections are reported in the 1-500 eV range. In our calculations, a complex optical potential was used to represent the collision dynamics and a single-center expansion method combined with the Padé approximation was used to solve the scattering equations. Our experimental data are in good agreement with the present calculated data. Comparisons with other theoretical results are also made
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Electron collisions with small esters: A joint experimental-theoretical investigation
A theoretical and experimental investigation on elastic electron scattering by two small esters, namely, methyl formate and ethyl acetate, is reported. Experimental differential, integral, and momentum-transfer cross sections are given in the 30-1000 eV and 10-120 ranges. The relative-flow technique was used to determine such quantities. Particularly for methyl formate, a theoretical study was also carried out in the 1-500 eV range. A complex optical potential derived from a Hartree-Fock molecular wave function was used to represent the collision dynamics, whereas the Padé approximation was used to solve the scattering equations. In addition, calculations based on the framework of the independent-atom model (IAM) were also performed for both targets. In general, there is good agreement between our experimental data and the present theoretical results calculated using the Padé approximation. The theoretical results using the IAM also agree well with the experimental data at 200 eV and above. Moreover, for methyl formate, our calculations reveal a 2A′′ (π∗) resonance at about 3.0 eV and a σ∗-type resonance centered at about 8.0 eV in the 2A′ scattering channel. The π∗ resonance is also seen in other targets containing a carbonyl group
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Electron collisions with small esters: A joint experimental-theoretical investigation
A theoretical and experimental investigation on elastic electron scattering by two small esters, namely, methyl formate and ethyl acetate, is reported. Experimental differential, integral, and momentum-transfer cross sections are given in the 30-1000 eV and 10-120 ranges. The relative-flow technique was used to determine such quantities. Particularly for methyl formate, a theoretical study was also carried out in the 1-500 eV range. A complex optical potential derived from a Hartree-Fock molecular wave function was used to represent the collision dynamics, whereas the Padé approximation was used to solve the scattering equations. In addition, calculations based on the framework of the independent-atom model (IAM) were also performed for both targets. In general, there is good agreement between our experimental data and the present theoretical results calculated using the Padé approximation. The theoretical results using the IAM also agree well with the experimental data at 200 eV and above. Moreover, for methyl formate, our calculations reveal a 2A′′ (π∗) resonance at about 3.0 eV and a σ∗-type resonance centered at about 8.0 eV in the 2A′ scattering channel. The π∗ resonance is also seen in other targets containing a carbonyl group