Detection Of Particles
Mostrando 13-24 de 374 artigos, teses e dissertações.
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13. Polyclonal antibodies to the putative coat protein of Citrus leprosis virus C expressed in Escherichia coli: production and use in immunodiagnosis
This work reports the in vitro expression of Citrus leprosis virus C (CiLV-C) putative coat protein (p29) and the production of a polyclonal antibody to be used as a tool for serological diagnosis of citrus leprosis. The ORF2/RNA1, corresponding to p29, was cloned in pET28a and transformed into Escherichia coli cells (BL21). Expression of p29 was induced in
Trop. plant pathol.. Publicado em: 14/05/2013
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14. Detection of replication-defective hepatitis A virus based on the correlation between real-time polymerase chain reaction and ELISA in situ results
ELISA in situ can be used to titrate hepatitis A virus (HAV) particles and real-time polymerase chain reaction (RT-PCR) has been shown to be a fast method to quantify the HAV genome. Precise quantification of viral concentration is necessary to distinguish between infectious and non-infectious particles. The purpose of this study was to compare cell culture
Mem. Inst. Oswaldo Cruz. Publicado em: 2013-02
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15. Detection of isometric, dsRNA-containing viral particles in Colletotrichum gloeosporioides isolated from cashew tree
Fungi are disease-causing agents in plants and affect crops of economic importance. One control method is to induce resistance in the host by using biological control with hypovirulent phytopathogenic fungi. Here, we report the detection of a mycovirus in a strain of Colletotrichum gloeosporioides causing anthracnose of cashew tree. The strain C. gloeosporio
Tropical Plant Pathology. Publicado em: 2012-04
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16. Detecção de rotavírus em amostras fecais de bovinos e água em propriedades rurais do vale do Paranhana, RS
The aim of present study was to assess a possible relationship between the contamination of water sources with animal husbandry in the region. In the localities belonging to Paranhana valley, the municipalities of Taquara, Rolante e Riozinho, were collected 104 water samples from different sources including tap water, ponds, dug wells, boreholes, streams, ri
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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17. Addition of magnetic markers for non-destructive evaluation of polymer composites
Polymer composite pipes are an appealing option as a substitute for conventional steel pipes, particularly due to their inherent corrosion resistance. However, the composite pipes currently used do not allow non-destructive evaluation (NDE) using instrumented devices which operate with magnetic sensors. The present work aims at the development of polymer com
Materials Research. Publicado em: 28/10/2011
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18. Determinação de peróxido de hidrogênio em antisséptico bucal usando um microdispositivo contendo partículas de Azul da Prússia
A simple flow-injection amperometric procedure using a three-electrode-integrated sensor for the determination of H2O2 in antiseptic mouthwash is reported. This method involves the use of a working composite electrode modified with Prussian Blue (PB) particles that was easily adapted as detector in FIA. The best amperometric response was observed for a compo
Química Nova. Publicado em: 2011
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19. A compact miniaturized continuous flow system for the determination of urea content in milk.
A multicommutation-based flow system with photometric detection was developed, employing an analytical microsystem constructed with low temperature cofired ceramics (LTCC) technology, a solid-phase reactor containing particles of Canavalia ensiformis DC (urease source) immobilized with glutaraldehyde, and a miniphotometer coupled directly to the microsystem
Analytical & Bioanalytical Chemistry. Publicado em: 2011
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20. Levantamento dos níveis de radioatividade natural em águas do alto Vale do Ribeira à planície costeira do litoral sul do Estado de São Paulo / Assessment of natural radioctivity levels in waters from Higher Ribeira Valley until the southern Sao Paulo State coastal plain
The complex exchange of fluvial, subsurface and seawater within a coastal area directly affects global biogeochemical cycles and the application of isotopic tracers, mainly natural radionuclides from U and Th series, is a powerful tool to track sources and sinks of trace elements and nutrients to this systems. The unique Ra signature applied to quantify the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/11/2010
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21. Identification of defluidization region in a gas-solid fluidized bed using a method based on pressure fluctuation measurements
Industrial applications that involve fluidized bed operations must prevent the undesirable phenomenon of partial or complete bed defluidization. Defluidization can be avoided by increasing the gas velocity and/or, in some cases, changing the solid feed conditions in the system, provided that the changes in the hydrodynamics of the flow are detected early eno
Brazilian Journal of Chemical Engineering. Publicado em: 2009-09
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22. Análogos cosmológicos dos efeitos Schwinger estático e oscilatório / Cosmological Analogues of the Static and Oscillatory Schwinger Effect
In this work we study the quantum effects of particle creation in the cosmological context and of the classical electrodynamics. With the studies of the particle creation in constant and oscillatory external electrical fields, the known static and oscillatory Schwinger effects, respectively, it was possible to study the polarization of the quantum vacuum and
Publicado em: 2009
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23. Using energy dispersive X ray fluorescence (EDXRF) technique to evaluate the suspended particulate matter from Limeira city, State of São Paulo, Brazil / Utilização da técnica de fluorescência de raios X por dispersão em energia (EDXRF) na avaliação do material particulado em suspensão na cidade de Limeira - SP
The main objective of this work was to evaluate the chemical composition of the suspended particulate matter from the atmosphere of the city of Limeira, State of São Paulo, by energy dispersive X-ray fluorescence (EDXRF) technique. A stacker filter sampler was used to collect the fine (particles with aerodynamic diameter between 2.5 and 10 müm) and the gro
Publicado em: 2009
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24. Estudo de anisotropias de UHECR s em dados do Observatorio Pierre Auger / Study of anisotropies of cosmic rays in data from the Pierre Auger
Almost a century after the discovery of cosmic radiation, their origin, composition, acceleration and propagation mechanisms in the universe is still unknown for the ultra-high energy component ( >~ 1018 eV). The mystery grows due to the suppression (GZK cutoff) in the ux of cosmic rays with energies E >~ 6 × 10 19 eV, caused by the interaction of these par
Publicado em: 2009