Equatorial scintillations in relation to the development of ionization anomaly (2008)
Ray, S., Paul, A., Dasgupta, A.
The irregularities in the electron density distribution of the ionosphere over the equatorial region frequently disrupt space-based communication and navigation links by causing severe amplitude and...
Equatorial scintillations in relation to the development of ionization anomaly (2008)
Ray, S., Paul, A., Dasgupta, A.
The irregularities in the electron density distribution of the ionosphere over the equatorial region frequently disrupt space-based communication and navigation links by causing severe amplitude and...
Saha, I., Paul, B., Dasgupta, A.
This community-based cross-sectional study was carried out to determine the prevalence of hypertension and variation of blood pressure with age among adolescents in an urban slum of Chetla, Kolkata,...
This community-based cross-sectional study was carried out to determine the prevalence of hypertension and variation of blood pressure with age among adolescents in an urban slum of Chetla, Kolkata,...
Co-evolution of Agent-Oriented Conceptual Models and CASO Agent Programs (2006)
Dasgupta, A., Krishna, A., Ghose, A.
Agent-Oriented conceptual modelling notations are highly effective in representing requirements from an intentional stance and answering questions such as what goals exist, how key actors depend on...
Co-evolution of Agent-Oriented Conceptual Models and CASO Agent Programs (2006)
Dasgupta, A., Krishna, A., Ghose, A.
Agent-Oriented conceptual modelling notations are highly effective in representing requirements from an intentional stance and answering questions such as what goals exist, how key actors depend on...
Design, Development, and Testing of Advanced Bridge Structures (2006)
McNamara, D., DasGupta, A., Hand, H., Maisano, J., Arah, C.
Three aspects of the application of adhesive bonding to lightweight bridge structures were examined: producing composite surface treatments to reliably bond with epoxy adhesives, developing computer...
Co-evolution of Agent-Oriented Conceptual Models and CASO Agent Programs (2006)
Dasgupta, A., Krishna, A., Ghose, A.
Agent-Oriented conceptual modelling notations are highly effective in representing requirements from an intentional stance and answering questions such as what goals exist, how key actors depend on...
Thrombophilic conditions in non-cirrhotic portal vein thrombosis (2005)
Shah, SR, DasGupta, A, Sharma, A, Joshi, A, Desai, D, Abraham, P, ...
New Grid Scheduling and Rescheduling Methods in the GrADS Project (2004)
K. Cooper, A. Dasgupta, K. Kennedy, C. Koelbel, G. Marin, M. Mazina, ...
The goal of the Grid Application Development Software (GrADS) project is to provide programming tools and an execution environment to ease program development for the Grid. In this paper, we describe...
Invariant measure and a limit theorem for some generalized Gauss maps (2004)
Chakraborty, Partha Sarathi, Dasgupta, A.
The original publication can be found at www.springerlink.com
Invariant measure and a limit theorem for some generalized Gauss maps (2004)
Chakraborty, Partha Sarathi, Dasgupta, A.
The original publication can be found at www.springerlink.com
People living with HIV infection / AIDS - A study on lymph node FNAC and CD4 count (2002)
Shobhana, A, Guha, S, Mitra, K, Dasgupta, A, Neogi, D, Hazra, S
A Lorentzian cure for Euclidean troubles (2002)
Ambjørn, J., Dasgupta, A., Jurkiewicz, J., Loll, R.
There is strong evidence coming from Lorentzian dynamical triangulations that the unboundedness of the gravitational action is no obstacle to the construction of a well-defined non-perturbative path...
A Lorentzian cure for Euclidean troubles (2002)
Ambjorn, J., Dasgupta, A., Jurkiewicz, J., Loll, R.
There is strong evidence coming from Lorentzian dynamical triangulations that the unboundedness of the gravitational action is no obstacle to the construction of a well-defined non-perturbative path...
A proper-time cure for the conformal sickness in quantum gravity (2001)
Starting from the space of Lorentzian metrics, we examine the full gravitational path integral in 3 and 4 space-time dimensions. Inspired by recent results obtained in a regularized, dynamically...
A proper-time cure for the conformal sickness in quantum gravity (2001)
Starting from the space of Lorentzian metrics, we examine the full gravitational path integral in 3 and 4 space-time dimensions. Inspired by recent results obtained in a regularized, dynamically...
Profile of glaucoma in a major eye hospital in North India (2001)
Das, J, Bhomaj, S, Chaudhuri, Z, Sharma, P, Negi, A, Dasgupta, A
N-side illuminated microcrystalline silicon solar cells (2001)
Gross, A., Vetterl, O., Lambertz, A., Finger, F., Wagner, H., Dasgupta, A.
This version is available at the following Publisher URL: http://apl.aip.org
A Single Channel on/off Model with TCP-Like Control (2000)
Borkovec, M., Dasgupta, A., Resnick, S., Samorodnitsky, G.
A Single Channel on/off Model with TCP-Like Control
A Single Channel on/off Model with TCP-Like Control (2000)
Borkovec, M., Dasgupta, A., Resnick, S., Samorodnitsky, G.
A Single Channel on/off Model with TCP-Like Control
Advanced Radiation Theory Support Annual Report 2002, Final Report (1998)
Davis, J., Apruzese, J., Chong, Y., Clark, R., Dasgupta, A.
This report describes the work of the Radiation Hydrodynamics Branch during FY 2002 in support of the DTRA PRS Program Critical issues covered are: (1) side-on and end-on x-ray imaging of wire and...
Advanced Radiation Theory Support Annual Report 2004 (1998)
Davis, J., Apruzese, J. P., Chong, Y., Clark, R. W., Dasgupta, A., Giuliani, J. L., ...
This report describes the work of the Radiation Hydrodynamics Branch during FY 2004 in support of the DTRA's PRS and Sandia National Laboratories high energy density programs. It is a compilation of...
The Disordering Process in an L1(sub 2) Ordered Alloy. (1998)
Horton, J. A., DasGupta, A., Liu, C. T.
The antiphase boundary (APB) structure and the disordering process have been studied by transmission electron microscopy (TEM) in a long-range-ordered alloy with L1(sub 2) structure and composition...
The sequence of disordering transformation processes in the A3B type alloy series (Ni70Fe30)3(V(sub 98-x)Al(sub x)Ti2), currently under development for high-temperature structural applications, was...
The sequence of disordering transformation processes in the A(3)B type alloy series (Ni(70)Fe(30))(3)(V(98-x)Al(x)Ti(2)), currently under development for high-temperature structural applications, was...
New rotation periods in the Pleiades: Interpreting activity indicators (1997)
Krishnamurthi, Anita, Terndrup, D. M., Pinsonneault, M. H., Sellgren, K., Stauffer, John R., Schild, R., ...
We present results of photometric monitoring campaigns of G, K and M dwarfs in the Pleiades carried out in 1994, 1995 and 1996. We have determined rotation periods for 18 stars in this cluster. In...
Stopping Times Related To Diagnostics And Outliers (1994)
A. Dasgupta, Y. Rinott, B. Vidakovic
This article introduces two general sequential methods for model choice and outlier detection.
Modified incision for orbicularis oris function conservation in intra oral lesions. (1992)
Sen, M, Dasgupta, A, Chatterjee, M, Chatterjee, D, Vani, N, Bhowmik, A
Land and politics in West Bengal : a sociological study of a multi-caste village. (1980)
Thesis (Ph. D.)--University of Sussex, 1980.
Venkatesan, A, Das, S, Dasgupta, A
A 60 nt long RNA termed IRNA, isolated from the yeast Saccharomyces cerevesiae, was previously shown to selectively block internal ribosome entry site (IRES)-mediated translation without interfering...
Das, S, Kenan, D J, Bocskai, D, Keene, J D, Dasgupta, A
We recently reported purification, determination of the nucleotide sequence, and cloning of a 60-nucleotide RNA (I-RNA) from the yeast Saccharomyces cerevisiae which preferentially blocked...
Yalamanchili, P, Harris, K, Wimmer, E, Dasgupta, A
Host cell RNA polymerase II (pol II)-mediated transcription is inhibited by poliovirus infection. We demonstrate here that both TATA- and initiator-mediated basal transcription is inhibited in...
Yalamanchili, P, Datta, U, Dasgupta, A
Host cell RNA polymerase II-mediated transcription is inhibited by poliovirus infection. Previous studies from our laboratory showed that activated transcription from a cyclic AMP-responsive element...
Yalamanchili, P, Banerjee, R, Dasgupta, A
Transient expression of the poliovirus-encoded protease 2APro in eukaryotic cells results in inhibition of both cellular transcription and translation. The inhibition of transcription observed in...
Banerjee, R, Echeverri, A, Dasgupta, A
The poliovirus-encoded, membrane-associated polypeptide 2C is believed to be required for initiation and elongation of RNA synthesis. We have expressed and purified recombinant, histidine-tagged 2C...
Shen, Y, Igo, M, Yalamanchili, P, Berk, A J, Dasgupta, A
Transcription factor IIIC (TFIIIC) is a general RNA polymerase III transcription factor that binds the B-box internal promotor element of tRNA genes and the complex of TFIIIA with a 5S rRNA gene....
The poliovirus-encoded, membrane-associated VPg-precursor polypeptide 3AB has been implicated in the initiation of viral RNA synthesis. We have expressed 3AB and 3A polypeptides in eukaryotic cells...
Das, S, Coward, P, Dasgupta, A
We have purified, sequenced, and prepared a synthetic clone of a small (60-nucleotide) RNA molecule from the yeast Saccharomyces cerevisiae that had previously been isolated on the basis of its...
Host cell RNA polymerase II-mediated transcription is inhibited by poliovirus infection. We have shown previously that the human TATA-binding protein (TBP), a general transcription factor required...
We have expressed in the yeast Saccharomyces cerevisiae a full-length poliovirus cDNA clone under the control of the GAL10 promoter to better characterize the effect of poliovirus on host cell...
Rubinstein, S J, Hammerle, T, Wimmer, E, Dasgupta, A
In HeLa cells, RNA polymerase I (Pol I)-mediated transcription is severely inhibited soon after infection with poliovirus. We have developed a gel retardation assay to analyze DNA-protein complexes...
Loss of a phosphorylated form of transcription factor CREB/ATF in poliovirus-infected cells.
Kliewer, S, Muchardt, C, Gaynor, R, Dasgupta, A
Host cell RNA synthesis is inhibited by poliovirus infection. We have studied the mechanism of poliovirus-induced inhibition of RNA polymerase II-mediated transcription by using the adenovirus early...
Multiple isoelectric forms of poliovirus RNA-dependent RNA polymerase: evidence for phosphorylation.
Poliovirus-specific RNA-dependent RNA polymerase (3Dpol) was purified to apparent homogeneity. A single polypeptide of an apparent molecular weight of 63,000 catalyzes the synthesis of dimeric and...
Kliewer, S, Garcia, J, Pearson, L, Soultanakis, E, Dasgupta, A, Gaynor, R
The human immunodeficiency virus (HIV) type 1 long terminal repeat (LTR) is the site of activation of the HIV tat protein. However, additional transactivators, such as the adenovirus E1A and...
Inhibition of rRNA synthesis by poliovirus: specific inactivation of transcription factors.
Synthesis of rRNA by RNA polymerase I is almost completely inhibited soon after infection of human cells with poliovirus. We show that extracts prepared from poliovirus-infected HeLa cells are...
Lubinski, J M, Kaplan, G, Racaniello, V R, Dasgupta, A
Four RNA fragments of approximately 1,000 to 1,200 nucleotides, representing both the 5' and 3' termini of poliovirus plus- and minus-strand RNAs, were generated by transcription of poliovirus cDNA...
We partially purified an inhibitor from poliovirus-infected HeLa cells which specifically blocked phosphorylation of the alpha subunit of eucaryotic initiation factor 2 by the double-stranded...
Protein kinase activity in general is stimulated at least 5- to 10-fold in ribosomal salt wash preparations from poliovirus-infected HeLa cells compared with those from mock-infected cells. The...
Morrow, C D, Lubinski, J, Hocko, J, Gibbons, G F, Dasgupta, A
The soluble phase of the cytoplasm of human rhinovirus type 2-infected cells contains an enzymatic activity able to copy rhinovirion RNA without an added primer. This RNA-dependent RNA polymerase...
A synthetic nonapeptide corresponding to the N-terminal sequence of poliovirus genome-linked protein (VPg) was linked to bovine serum albumin and used to raise antibodies in rabbits. The antipeptide...
Morrow, C D, Hocko, J, Navab, M, Dasgupta, A
Poliovirus replicase- and host factor-catalyzed copying of 3'-terminal polyadenylic acid [poly(A)] of poliovirion RNA was studied. Host factor-stimulated synthesis of polyuridylic acid [poly(U)] by...
Primer-dependent synthesis of covalently linked dimeric RNA molecules by poliovirus replicase.
Lubinski, J M, Ransone, L J, Dasgupta, A
Poliovirus-specific RNA-dependent RNA polymerase (replicase, 3Dpol) was purified from HeLa cells infected with poliovirus. The purified enzyme preparation contained two proteins of apparent molecular...
Antibody to a host protein prevents initiation by the poliovirus replicase.
Dasgupta, A, Hollingshead, P, Baltimore, D
In vitro transcription of poliovirus RNA was catalyzed by the combination of a virus-coded polymerase and a host cell protein (host factor). Antibody to host factor inhibited template-dependent...
Ralston, R O, Das, A, Dasgupta, A, Roy, R, Palmieri, S, Gupta, N K
A ribosomal salt (0.5 M KCl) wash factor (RF) that reverses inhibition of protein synthesis in heme-deficient reticulocyte lysates has been resolved from the bulk of Met-tRNAfMet-binding factor...
Mass spectral studies of probe pyrolysis products of intact oligoribonucleotides.
Gross, M L, Lyon, P A, Dasgupta, A, Gupta, N
Pyrolysis of underivatized homogeneous oligoribonucleotides in the source of a mass spectrometer leads to production of simple mass spectra which resemble the spectra of the bases themselves. It is...
Direct cleavage of human TATA-binding protein by poliovirus protease 3C in vivo and in vitro.
Clark, M E, Lieberman, P M, Berk, A J, Dasgupta, A
Host cell RNA polymerase II (Pol II)-mediated transcription is inhibited by poliovirus infection. This inhibition is correlated to a specific decrease in the activity of a chromatographic fraction...
A transcriptionally active form of TFIIIC is modified in poliovirus-infected HeLa cells.
In HeLa cells, RNA polymerase III (pol III)-mediated transcription is severely inhibited by poliovirus infection. This inhibition is due primarily to the reduction in transcriptional activity of the...
Inhibition of host cell RNA polymerase II-mediated transcription by poliovirus infection was studied in vitro. Whole-cell extracts prepared from poliovirus-infected HeLa cells at 3 h postinfection...
Fradkin, L G, Yoshinaga, S K, Berk, A J, Dasgupta, A
Transcription factor TFIIIC2 derived from human cells is required for tRNA-type gene transcription and binds with high affinity to the essential B-box promoter element of tRNA-type genes. Although 5S...
Fradkin, L G, Yoshinaga, S K, Berk, A J, Dasgupta, A
The inhibition of transcription by RNA polymerase III in poliovirus-infected cells was studied. Experiments utilizing two different cell lines showed that the initiation step of transcription by RNA...
Poliovirus replicase: a soluble enzyme able to initiate copying of poliovirus RNA.
Dasgupta, A, Baron, M H, Baltimore, D
The soluble phase of the cytoplasm of poliovirus-infected cells contains an enzymatic activity able to copy RNA without an added primer. This replicase activity has been purified 60-fold; it is...
In vitro synthesis of infectious poliovirus RNA.
Kaplan, G, Lubinski, J, Dasgupta, A, Racaniello, V R
Replication of the infectious RNA genome of poliovirus is accomplished in cells by the viral RNA polyme