Results 171 to 180 of about 35,434 (217)
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Nature Chemistry, 2021
The formation of all-carbon quaternary centres is a challenging problem in organic chemistry, with far-reaching implications for functional molecule discovery. Now an inventive solution has been developed, using sulfinamides as traceless linkers for an asymmetric radical Truce–Smiles rearrangement.
David M. Whalley, Michael F. Greaney
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The formation of all-carbon quaternary centres is a challenging problem in organic chemistry, with far-reaching implications for functional molecule discovery. Now an inventive solution has been developed, using sulfinamides as traceless linkers for an asymmetric radical Truce–Smiles rearrangement.
David M. Whalley, Michael F. Greaney
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SSRN Electronic Journal, 2010
We generate a reliable implied volatility surface without arbitrage in space and in time by parametrising a mixture of shifted lognormal densities under constraints and use a Differential Evolution algorithm to calibrate the model's parameters to a finite set of option prices. It is used for marking options not directly visible as well as for computing
D. A. Bloch, Carlos A. Coello Coello
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We generate a reliable implied volatility surface without arbitrage in space and in time by parametrising a mixture of shifted lognormal densities under constraints and use a Differential Evolution algorithm to calibrate the model's parameters to a finite set of option prices. It is used for marking options not directly visible as well as for computing
D. A. Bloch, Carlos A. Coello Coello
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CHI '13 Extended Abstracts on Human Factors in Computing Systems, 2013
In this digital age where it is commonplace and easy to spoof passwords and other security measures, a more robust and personalized form of security needs to be developed. Our identities are not who we are now, but are shaped by our history and our relationships.
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In this digital age where it is commonplace and easy to spoof passwords and other security measures, a more robust and personalized form of security needs to be developed. Our identities are not who we are now, but are shaped by our history and our relationships.
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Annales de biologie clinique, 2013
We have detected an ovalo-stomatocytosis in a military 24-years-old man. We have sent a blood specimen to haematology laboratory in Kremlin-Bicetre (France) to test ektacytometry. The test concludes to an asymptomatic Melanesian ovalocytosis.
Catherine, Désidéri-Vaillant +5 more
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We have detected an ovalo-stomatocytosis in a military 24-years-old man. We have sent a blood specimen to haematology laboratory in Kremlin-Bicetre (France) to test ektacytometry. The test concludes to an asymptomatic Melanesian ovalocytosis.
Catherine, Désidéri-Vaillant +5 more
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SSRN Electronic Journal, 2010
Using a data set of vanilla options on the major indexes we investigate the calibration properties of several multi-factor stochastic volatility models by adopting the fast Fourier transform as the pricing methodology. We study the impact of the penalizing function on the calibration performance and how it affects the calibrated parameters. We consider
J. Da Fonseca, GRASSELLI, MARTINO
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Using a data set of vanilla options on the major indexes we investigate the calibration properties of several multi-factor stochastic volatility models by adopting the fast Fourier transform as the pricing methodology. We study the impact of the penalizing function on the calibration performance and how it affects the calibrated parameters. We consider
J. Da Fonseca, GRASSELLI, MARTINO
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Smiles that reveal, smiles that conceal
Shakespeare, 2015This article analyses the dramatic functions of the smile in Shakespeare's plays as a facial gesture which can either reveal what a character is thinking, or conceal feelings. It is at its most theatrically complex in Twelfth Night as a thematic and structural element, and Malvolio's smiling is the most extended example.
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The Psychoanalytic Quarterly, 1968
(1968). Smiling in Schizophrenia. The Psychoanalytic Quarterly: Vol. 37, No. 1, pp. 103-113.
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(1968). Smiling in Schizophrenia. The Psychoanalytic Quarterly: Vol. 37, No. 1, pp. 103-113.
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IEEE Signal Processing Magazine, 2008
A description of multispectral image capture is presented from a signal processing point of view. Indeed, this article is based on an equation that models the multispectral acquisition of images. The main components of this equation are described. They correspond to the lighting conditions, the filters, the sensor sensitivity, and associated noise ...
Alejandro Ribés +3 more
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A description of multispectral image capture is presented from a signal processing point of view. Indeed, this article is based on an equation that models the multispectral acquisition of images. The main components of this equation are described. They correspond to the lighting conditions, the filters, the sensor sensitivity, and associated noise ...
Alejandro Ribés +3 more
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2021
In Brazil, the visibility of newly arrived Black African migrants is a test of collective emotion and spatial flexibility. This chapter mixes academic scholarship, personal reflections and ethnographic fiction based on anthropological fieldwork conducted in São Paulo related to Aparelha Luzia (AL), a Black cultural centre.
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In Brazil, the visibility of newly arrived Black African migrants is a test of collective emotion and spatial flexibility. This chapter mixes academic scholarship, personal reflections and ethnographic fiction based on anthropological fieldwork conducted in São Paulo related to Aparelha Luzia (AL), a Black cultural centre.
openaire +2 more sources