Prospecting
Mostrando 13-24 de 82 artigos, teses e dissertações.
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13. Geophysical prospection in tin mineral occurrence associated to greisen in granite São Sepé (RS)
Abstract The discovery of new mineral resources involves various research techniques through direct and indirect studies. The geophysical methods are important tools in the detection of deep deposits because they use the contrast between the physical properties of the hosting rocks and the mineralized zone. In this sense, electrical geophysical methods are w
REM, Int. Eng. J.. Publicado em: 2018-04
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14. Clusia criuva Cambess. (Clusiaceae): anatomical characterization, chemical prospecting and antioxidant activity
ABSTRACT This study aims the anatomical description and chemical characterization of aerial parts of Clusia criuva Cambess., Clusiaceae in addition to the evaluation of the antioxidant activity of crude extracts, correlated to the flavonoid content. The morphological characterization was performed using traditional techniques of plant anatomy. For phytochemi
An. Acad. Bras. Ciênc.. Publicado em: 31/07/2017
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15. Microsatellite markers: what they mean and why they are so useful
Abstract Microsatellites or Single Sequence Repeats (SSRs) are extensively employed in plant genetics studies, using both low and high throughput genotyping approaches. Motivated by the importance of these sequences over the last decades this review aims to address some theoretical aspects of SSRs, including definition, characterization and biological functi
Genet. Mol. Biol.. Publicado em: 04/08/2016
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16. In vitro activity of phospholipase A 2 and of peptides from Crotalus durissus terrificus venom against amastigote and promastigote forms of Leishmania (L.) infantum chagasi
Abstract Background American visceral leishmaniasis is caused by the intracellular parasiteLeishmania (L.) infantum chagasi, and transmitted by the sand fly Lutzomyia longipalpis. Since treatment is based on classical chemotherapeutics with significant side effects, the search for new drugs remains the greatest global challenge. Thus, this in vitro study a
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 22/12/2015
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17. Dispersion of Love wave in an isotropic layer sandwiched between orthotropic and prestressed inhomogeneous half-spaces
Abstract An in-depth study has been carried out for the dispersion of Love waves in an isotropic elastic layer sandwiched between orthotropic and prestressed inhomogeneous elastic half-spaces. The inhomogeneities in density and rigidity of the lower half-space are space dependent and an arbitrary function of depth. Simple mathematical techniques are used to
Lat. Am. j. solids struct.. Publicado em: 2015-10
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18. Endophytic fungi producing of esterases: evaluation in vitro of the enzymatic activity using pH indicator
A sensitive and efficient colorimetric method was optimized for detection of esterase enzymes produced by endophytic fungi for development of High-Throughput Screening (HTS). The fungi were isolated and obtained previously from plant species of Cerrado and Atlantic Forest located in areas of environmental preservation in the State of Sao Paulo / Brazil, as p
Braz. J. Microbiol.. Publicado em: 10/01/2014
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19. The enhancing impact of friendship networks on sales managers' performance
This paper examines how relationships with friends moderate the impact of professional networks on sales performance. Based on a sample of 204 sales managers in a professional service company, this study presents evidence that friendship networks amplify the effect of sales forces' professional networks on new product sales as well as on prospecting and conv
BAR, Braz. Adm. Rev.. Publicado em: 2013-06
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20. Química Sem Fronteiras: o desafio da energia
Coal, natural gas and petroleum-based liquid fuels are still the most widely used energy sources in modern society. The current scenario contrasts with the foreseen shortage of petroleum that was spread out in the beginning of the XXI century, when the concept of "energy security" emerged as an urgent agenda to ensure a good balance between energy supply and
Quím. Nova. Publicado em: 2013
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21. Ocorrência, distribuição geográfica e estudo fenológico de camu-camuzeiro (Myrciaria dubia (H.B.K.) Mc Vaugh no estado de Roraima / Occurrence, geographical distribution and phenological study of (Myrciaria dubia (H.B.K.) McVaugh) in the state of Roraima
The camu-camu (Myrciaria dubia) is a representative of the family Myrtaceae, one of the botanical families most important to fruit growing and which is part of several communities of the Brazilian vegetation. M. dubia is an Amazonian plant, found most often in the Peruvian Amazon. The species possesses fruits with a high content of vitamin C, the pulp being
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/04/2012
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22. Subtractive libraries for prospecting differentially expressed genes in the soybean under water deficit
Soybean has a wide range of applications in the industry and, due to its crop potential, its improvement is widely desirable. During drought conditions, soybean crops suffer significant losses in productivity. Therefore, understanding the responses of the soybean under this stress is an effective way of targeting crop improvement techniques. In this study, w
Genetics and Molecular Biology. Publicado em: 2012
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23. ProspecÃÃo de ventos para geraÃÃo eolielÃtrica utilizando modelo atmosfÃrico de mesoescala. / Prospecting for wind generation eolielÃtrica using mesoscale atmospheric model.
à inegÃvel que as energias alternativas vÃm assumindo um papel crescente no cenÃrio mundial devido ao forte cunho sÃcio-ambiental que estas podem assegurar. No Brasil, especificamente no CearÃ, a presenÃa das energias renovÃveis à crescente. O Estado retomou a lideranÃa nacional na capacidade de geraÃÃo de energia elÃtrica a partir dos ventos e
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/12/2011
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24. Inversão sísmica para impedância acústica na caracterização de reservatórios : impacto da extração da wavelet e do aumento da banda de frequências / Seismic inversion to acoustic impedance in reservoir caracterization : the impact of wavelet extraction and increase the frequency band
The substrates that constitute a reservoir are identified using seismic data. The process consists of determining reservoir petrophysical properties. However, sub-seismic layers structures are masked due to the limitation of conventional seismic data. The failure provided by these data produces an erroneous model of reservoir. The lack of vertical resolution
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/11/2011