Discovery of a Relativistic Supernova Without a Gamma-ray Trigger (2009)
Soderberg, A. M., Chakraborti, S., Pignata, G., Chevalier, R. A., Chandra, P., Ray, A., ...
Type Ibc supernovae (SNe Ibc) mark the gravitational collapse of some massive stars (M > 20 Msun) propelling several solar masses of material to typical velocities of ~10,000 km/s. The...
The High-Metallicity Explosion Environment of the Relativistic Supernova 2009bb (2009)
Levesque, E. M., Soderberg, A. M., Foley, R. J., Berger, E., Kewley, L. J., Chakraborti, S., ...
We investigate the environment of the nearby (d ~ 40Mpc) broad-lined Type Ic supernova SN 2009bb. This event was observed to produce a relativistic outflow likely powered by a central accreting...
Chakraborti, S., Eryilmaz, S., Human, S.W.
Nonparametric control charts do not require knowledge about the shape of the underlying distribution and can thus be attractive in certain situations. Two new Shewhart- type nonparametric control...
Chakraborti, S., Eryilmaz, S., Human, S.W.
Nonparametric control charts do not require knowledge about the shape of the underlying distribution and can thus be attractive in certain situations. Two new Shewhart- type nonparametric control...
de Novo Structure Prediction (2008)
K. V. Holmes, In Fields Virology, P. M. Howley, X. Xiao, S. Chakraborti, ...
(2001). 13. W. Li et al., Nature 426, 450 (2003). 14. H. Hofmann et al., Proc. Natl. Acad. Sci. U.S.A. 102, 7988 (2005).
Properties and performance of the c-chart for attributes data (2008)
The effects of parameter estimation are examined for the well-known c-chart for attributes data. The exact run length distribution is obtained for Phase II applications, when the true average number...
Properties and performance of the c-chart for attributes data (2008)
The effects of parameter estimation are examined for the well-known c-chart for attributes data. The exact run length distribution is obtained for Phase II applications, when the true average number...
A Theoretical Construction of Thin Shell Wormhole from Tidal Charged Black hole (2007)
Rahaman, F., Kalam, M., Rahman, K A, Chakraborti, S.
Recently, Dadhich et al [ Phys.Lett.B 487, 1 (2000)] have discovered a black hole solution localized on a three brane in five dimensional gravity in the Randall-Sundrum scenario. In this article, we...
Thin Shell Wormhole in Heterotic String Theory (2006)
Rahaman, F., Kalam, M., Chakraborti, S.
Using 'Cut and Paste' technique, we develop a thin shell wormhole in heterotic string theory. We determine the surface stresses, which are localized in the shell, by using Darmois-Israel formalism....
Chakraborti, S, Michael, J R, Gurtner, G H, Ghosh, S S, Dutta, G, Merker, A
Exposure of bovine pulmonary-arterial endothelial cells to the oxidant lipid t-butyl hydroperoxide (t-Bu-OOH) increases cell-membrane-associated phospholipase A2 (PLA2) activity and stimulates...
Chakraborti, T, Ghosh, S K, Michael, J R, Chakraborti, S
We have investigated the role of an aprotinin-sensitive protease in regulating Ca(2+)-ATPase activity and Ca2+ uptake (ATP-dependent and Na(+)-dependent) in microsomes of bovine pulmonary vascular...
Chakraborti, S, Michael, J R, Gurtner, G H, Ghosh, S S, Dutta, G, Merker, A
Exposure of bovine pulmonary-arterial endothelial cells to the oxidant lipid t-butyl hydroperoxide (t-Bu-OOH) increases cell-membrane-associated phospholipase A2 (PLA2) activity and stimulates...
Chakraborti, T, Ghosh, S K, Michael, J R, Chakraborti, S
We have investigated the role of an aprotinin-sensitive protease in regulating Ca(2+)-ATPase activity and Ca2+ uptake (ATP-dependent and Na(+)-dependent) in microsomes of bovine pulmonary vascular...
Do callers to NHS Direct follow the advice to attend an accident and emergency department?
Foster, J, Jessopp, L, Chakraborti, S
Methods: A representative three week period in May 2000 was investigated. During this period there were no health scares, major health campaigns, or bank holidays that may have affected the call...
Properties and performance of the c-chart for attributes data
The effects of parameter estimation are examined for the well-known c-chart for attributes data. The exact run length distribution is obtained for Phase II applications, when the true average number...
A class of distribution-free control charts
S. Chakraborti, P. Laan, M. A. Wiel
A class of Shewhart-type distribution-free control charts is considered. A key advantage of these charts is that the in-control run length distribution is the same for all continuous process...
Relative Inequality, Absolute Inequality, and Welfare: Large Sample Tests for Partial Orders.
Bishop, John A, Chakraborti, S, Thistle, Paul D
Two general welfare criteria, mean-relative Lorenz and mean-absolute Lorenz dominance, induce partial orders on income distributions. We propose asymptotically distribution-free inference procedures,...
Asymptotically Distribution-Free Statistical Inference for Generalized Lorenz Curves.
Bishop, John A, Chakraborti, S, Thistle, Paul D
This paper provides asymtotically distribution-free statistical inference procedures for generalized Lorenz curves. Given appropriate measures of income and the income recipient unit are chosen...
Asymptotically distribution-free joint confidence intervals are provided for generalized Lorenz ordinates estimated from complete data. The joint confidence intervals are especially useful in making...
A class of tests for homogeneity of quantiles under unequal right-censorship
A class of tests is considered for testing equality of quantiles (of a specified order) of K ([greater-or-equal, slanted] 2) continuous populations when the observations are subject to random...
A class of distribution-free tests for testing homogeneity against ordered alternatives
A class of distribution-free tests for homogeneity of several populations against ordered alternatives is proposed. These are particularly useful when testing time is expensive so that an early...
A phase II nonparametric control chart based on precedence statistics with runs-type signaling rules
Chakraborti, S., Eryilmaz, S., Human, S.W.
Nonparametric control charts do not require knowledge about the shape of the underlying distribution and can thus be attractive in certain situations. Two new Shewhart-type nonparametric control...